Bump v7.1.2

This reverts commit d7ce600503.

.circleci/config.yml

@@ -10,7 +10,7 @@
 # Build machines configs.
 docker-image: &docker-image
   docker:
-    - image: electronbuilds/electron:0.0.9
+    - image: electronbuilds/electron:0.0.10
 
 machine-linux-medium: &machine-linux-medium
   <<: *docker-image
@@ -91,13 +91,19 @@ env-linux-medium: &env-linux-medium
   NUMBER_OF_NINJA_PROCESSES: 3
 
 env-linux-2xlarge: &env-linux-2xlarge
-  NUMBER_OF_NINJA_PROCESSES: 18
+  NUMBER_OF_NINJA_PROCESSES: 34
+  
+env-linux-2xlarge-release: &env-linux-2xlarge-release
+  NUMBER_OF_NINJA_PROCESSES: 16
 
 env-machine-mac: &env-machine-mac
   NUMBER_OF_NINJA_PROCESSES: 6
 
 env-mac-large: &env-mac-large
-  NUMBER_OF_NINJA_PROCESSES: 10
+  NUMBER_OF_NINJA_PROCESSES: 18
+
+env-mac-large-release: &env-mac-large-release
+  NUMBER_OF_NINJA_PROCESSES: 8
 
 env-disable-crash-reporter-tests: &env-disable-crash-reporter-tests
   DISABLE_CRASH_REPORTER_TESTS: true
@@ -174,7 +180,7 @@ step-setup-env-for-build: &step-setup-env-for-build
         echo 'export SCCACHE_PATH="'"$SCCACHE_PATH"'"' >> $BASH_ENV
         if [ "$CIRCLE_PR_NUMBER" != "" ]; then
           #if building a fork set readonly access to sccache
-          echo 'export SCCACHE_BUCKET="electronjs-sccache"' >> $BASH_ENV
+          echo 'export SCCACHE_BUCKET="electronjs-sccache-ci"' >> $BASH_ENV
           echo 'export SCCACHE_TWO_TIER=true' >> $BASH_ENV
         fi
       fi
@@ -186,6 +192,13 @@ step-restore-brew-cache: &step-restore-brew-cache
     keys:
       - v1-brew-cache-{{ arch }}
 
+step-save-brew-cache: &step-save-brew-cache
+  save_cache:
+    paths:
+      - /usr/local/Homebrew
+    key: v1-brew-cache-{{ arch }}
+    name: Persisting brew cache
+
 step-get-more-space-on-mac: &step-get-more-space-on-mac
   run:
     name: Free up space on MacOS
@@ -459,25 +472,13 @@ step-mksnapshot-store: &step-mksnapshot-store
     path: src/out/Default/mksnapshot.zip
     destination: mksnapshot.zip
 
-step-maybe-build-dump-syms: &step-maybe-build-dump-syms
-  run:
-    name: Build dump_syms binary
-    command: |
-      if [ "$GENERATE_SYMBOLS" == "true" ]; then
-        cd src
-        # Build needed dump_syms executable
-        ninja -C out/Default third_party/breakpad:dump_syms
-      fi
-
 step-maybe-generate-breakpad-symbols: &step-maybe-generate-breakpad-symbols
   run:
     name: Generate breakpad symbols
     command: |
       if [ "$GENERATE_SYMBOLS" == "true" ]; then
         cd src
-        export BUILD_PATH="$PWD/out/Default"
-        export DEST_PATH="$BUILD_PATH/breakpad_symbols"
-        electron/script/dump-symbols.py -b $BUILD_PATH -d $DEST_PATH -v
+        ninja -C out/Default electron:electron_symbols
       fi
 
 step-maybe-zip-symbols: &step-maybe-zip-symbols
@@ -547,6 +548,93 @@ step-ninja-summary: &step-ninja-summary
     command: |
       python depot_tools/post_build_ninja_summary.py -C src/out/Default
 
+# Checkout Steps
+step-generate-deps-hash: &step-generate-deps-hash
+  run:
+    name: Generate DEPS Hash
+    command: node src/electron/script/generate-deps-hash.js
+
+step-touch-sync-done: &step-touch-sync-done
+  run:
+    name: Touch Sync Done
+    command: touch src/electron/.circle-sync-done
+
+# Restore exact src cache based on the hash of DEPS and patches/*
+# If no cache is matched EXACTLY then the .circle-sync-done file is empty
+# If a cache is matched EXACTLY then the .circle-sync-done file contains "done"
+step-maybe-restore-src-cache: &step-maybe-restore-src-cache
+  restore_cache:
+    paths:
+      - ./src
+    keys:
+      - v5-src-cache-{{ arch }}-{{ checksum "src/electron/.depshash" }}
+    name: Restoring src cache
+
+# Restore exact or closest git cache based on the hash of DEPS and .circle-sync-done
+# If the src cache was restored above then this will match an empty cache
+# If the src cache was not restored above then this will match a close git cache
+step-maybe-restore-git-cache: &step-maybe-restore-git-cache
+  restore_cache:
+    paths:
+      - ~/.gclient-cache
+    keys:
+      - v2-gclient-cache-{{ arch }}-{{ checksum "src/electron/.circle-sync-done" }}-{{ checksum "src/electron/DEPS" }}
+      - v2-gclient-cache-{{ arch }}-{{ checksum "src/electron/.circle-sync-done" }}
+    name: Conditionally restoring git cache
+
+step-set-git-cache-path: &step-set-git-cache-path
+  run:
+    name: Set GIT_CACHE_PATH to make gclient to use the cache
+    command: |
+      # CircleCI does not support interpolation when setting environment variables.
+      # https://circleci.com/docs/2.0/env-vars/#setting-an-environment-variable-in-a-shell-command
+      echo 'export GIT_CACHE_PATH="$HOME/.gclient-cache"' >> $BASH_ENV
+
+# Persist the git cache based on the hash of DEPS and .circle-sync-done
+# If the src cache was restored above then this will persist an empty cache
+step-save-git-cache: &step-save-git-cache
+  save_cache:
+    paths:
+      - ~/.gclient-cache
+    key: v2-gclient-cache-{{ arch }}-{{ checksum "src/electron/.circle-sync-done" }}-{{ checksum "src/electron/DEPS" }}
+    name: Persisting git cache
+
+step-run-electron-only-hooks: &step-run-electron-only-hooks
+  run:
+    name: Run Electron Only Hooks
+    command: gclient runhooks --spec="solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]"
+
+step-generate-deps-hash-cleanly: &step-generate-deps-hash-cleanly
+  run:
+    name: Generate DEPS Hash
+    command: (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js
+
+# Mark the sync as done for future cache saving
+step-mark-sync-done: &step-mark-sync-done
+  run:
+    name: Mark Sync Done
+    command: echo DONE > src/electron/.circle-sync-done
+
+# Minimize the size of the cache
+step-minimize-workspace-size-from-checkout: &step-minimize-workspace-size-from-checkout
+  run:
+    name: Remove some unused data to avoid storing it in the workspace/cache
+    command: |
+      rm -rf src/android_webview
+      rm -rf src/ios
+      rm -rf src/third_party/blink/web_tests
+      rm -rf src/third_party/blink/perf_tests
+      rm -rf src/third_party/hunspell_dictionaries
+      rm -rf src/third_party/WebKit/LayoutTests
+
+# Save the src cache based on the deps hash
+step-save-src-cache: &step-save-src-cache
+  save_cache:
+    paths:
+      - ./src
+    key: v5-src-cache-{{ arch }}-{{ checksum "src/electron/.depshash" }}
+    name: Persisting src cache
+
 # Lists of steps.
 steps-lint: &steps-lint
   steps:
@@ -565,11 +653,20 @@ steps-lint: &steps-lint
 
           cipd ensure -ensure-file - -root . <<-CIPD
           \$ServiceURL https://chrome-infra-packages.appspot.com/
-          @Subdir buildtools/linux64
+          @Subdir src/buildtools/linux64
           gn/gn/linux-amd64 $gn_version
           CIPD
 
-          echo 'export CHROMIUM_BUILDTOOLS_PATH="'"$PWD"'/buildtools"' >> $BASH_ENV
+          echo 'export CHROMIUM_BUILDTOOLS_PATH="'"$PWD"'/src/buildtools"' >> $BASH_ENV
+    - run:
+        name: Download clang-format Binary
+        command: |
+          chromium_revision="$(grep -A1 chromium_version src/electron/DEPS | tr -d '\n' | cut -d\' -f4)"
+
+          sha1_path='buildtools/linux64/clang-format.sha1'
+          curl -sL "https://chromium.googlesource.com/chromium/src/+/${chromium_revision}/${sha1_path}?format=TEXT" | base64 -d > "src/${sha1_path}"
+
+          download_from_google_storage.py --no_resume --no_auth --bucket chromium-clang-format -s "src/${sha1_path}"
     - run:
         name: Run Lint
         command: |
@@ -583,7 +680,7 @@ steps-lint: &steps-lint
           node script/yarn install --frozen-lockfile
           node script/yarn lint
 
-steps-checkout: &steps-checkout
+steps-checkout-fast: &steps-checkout-fast
   steps:
     - *step-checkout-electron
     - *step-depot-tools-get
@@ -592,88 +689,57 @@ steps-checkout: &steps-checkout
     - *step-get-more-space-on-mac
     - *step-install-gnutar-on-mac
 
-    - run:
-        name: Generate DEPS Hash
-        command: node src/electron/script/generate-deps-hash.js
-    - run:
-        name: Touch Sync Done
-        command: touch src/electron/.circle-sync-done
-    # Restore exact src cache based on the hash of DEPS and patches/*
-    # If no cache is matched EXACTLY then the .circle-sync-done file is empty
-    # If a cache is matched EXACTLY then the .circle-sync-done file contains "done"
-    - restore_cache:
-        paths:
-          - ./src
-        keys:
-          - v5-src-cache-{{ arch }}-{{ checksum "src/electron/.depshash" }}
-        name: Restoring src cache
-    # Restore exact or closest git cache based on the hash of DEPS and .circle-sync-done
-    # If the src cache was restored above then this will match an empty cache
-    # If the src cache was not restored above then this will match a close git cache
-    - restore_cache:
-        paths:
-          - ~/.gclient-cache
-        keys:
-          - v2-gclient-cache-{{ arch }}-{{ checksum "src/electron/.circle-sync-done" }}-{{ checksum "src/electron/DEPS" }}
-          - v2-gclient-cache-{{ arch }}-{{ checksum "src/electron/.circle-sync-done" }}
-        name: Conditionally restoring git cache
-    - run:
-        name: Set GIT_CACHE_PATH to make gclient to use the cache
-        command: |
-          # CircleCI does not support interpolation when setting environment variables.
-          # https://circleci.com/docs/2.0/env-vars/#setting-an-environment-variable-in-a-shell-command
-          echo 'export GIT_CACHE_PATH="$HOME/.gclient-cache"' >> $BASH_ENV
+    - *step-generate-deps-hash
+    - *step-touch-sync-done
+    - *step-maybe-restore-src-cache
+    - *step-maybe-restore-git-cache
+    - *step-set-git-cache-path
     # This sync call only runs if .circle-sync-done is an EMPTY file
     - *step-gclient-sync
-    # Persist the git cache based on the hash of DEPS and .circle-sync-done
-    # If the src cache was restored above then this will persist an empty cache
-    - save_cache:
-        paths:
-          - ~/.gclient-cache
-        key: v2-gclient-cache-{{ arch }}-{{ checksum "src/electron/.circle-sync-done" }}-{{ checksum "src/electron/DEPS" }}
-        name: Persisting git cache
     # These next few steps reset Electron to the correct commit regardless of which cache was restored
     - run:
         name: Wipe Electron
         command: rm -rf src/electron
     - *step-checkout-electron
-    - run:
-        name: Run Electron Only Hooks
-        command: gclient runhooks --spec="solutions=[{'name':'src/electron','url':None,'deps_file':'DEPS','custom_vars':{'process_deps':False},'managed':False}]"
-    - run:
-        name: Generate DEPS Hash
-        command: (cd src/electron && git checkout .) && node src/electron/script/generate-deps-hash.js
-    # Mark the sync as done for future cache saving
-    - run:
-        name: Mark Sync Done
-        command: echo DONE > src/electron/.circle-sync-done
-    # Minimize the size of the cache
-    - run:
-        name: Remove some unused data to avoid storing it in the workspace/cache
-        command: |
-          rm -rf src/android_webview
-          rm -rf src/ios
-          rm -rf src/third_party/blink/web_tests
-          rm -rf src/third_party/blink/perf_tests
-          rm -rf src/third_party/hunspell_dictionaries
-          rm -rf src/third_party/WebKit/LayoutTests
-    # Save the src cache based on the deps hash
-    - save_cache:
-        paths:
-          - ./src
-        key: v5-src-cache-{{ arch }}-{{ checksum "src/electron/.depshash" }}
-        name: Persisting src cache
-    - save_cache:
-        paths:
-          - /usr/local/Homebrew
-        key: v1-brew-cache-{{ arch }}
-        name: Persisting brew cache
+    - *step-run-electron-only-hooks
+    - *step-generate-deps-hash-cleanly
+    - *step-mark-sync-done
+    - *step-minimize-workspace-size-from-checkout
     - persist_to_workspace:
         root: .
         paths:
           - depot_tools
           - src
 
+steps-checkout-and-save-cache: &steps-checkout-and-save-cache
+  steps:
+    - *step-checkout-electron
+    - *step-depot-tools-get
+    - *step-depot-tools-add-to-path
+    - *step-restore-brew-cache
+    - *step-get-more-space-on-mac
+    - *step-install-gnutar-on-mac
+
+    - *step-generate-deps-hash
+    - *step-touch-sync-done
+    - *step-maybe-restore-src-cache
+    - *step-maybe-restore-git-cache
+    - *step-set-git-cache-path
+    # This sync call only runs if .circle-sync-done is an EMPTY file
+    - *step-gclient-sync
+    - *step-save-git-cache
+    # These next few steps reset Electron to the correct commit regardless of which cache was restored
+    - run:
+        name: Wipe Electron
+        command: rm -rf src/electron
+    - *step-checkout-electron
+    - *step-run-electron-only-hooks
+    - *step-generate-deps-hash-cleanly
+    - *step-mark-sync-done
+    - *step-minimize-workspace-size-from-checkout
+    - *step-save-src-cache
+    - *step-save-brew-cache
+
 steps-electron-gn-check: &steps-electron-gn-check
   steps:
     - attach_workspace:
@@ -710,9 +776,11 @@ steps-electron-build-for-tests: &steps-electron-build-for-tests
     - *step-depot-tools-add-to-path
     - *step-setup-env-for-build
     - *step-restore-brew-cache
+    - *step-get-more-space-on-mac
     - *step-install-npm-deps-on-mac
     - *step-fix-sync-on-mac
     - *step-gn-gen-default
+    - *step-delete-git-directories
 
     # Electron app
     - *step-electron-build
@@ -741,7 +809,6 @@ steps-electron-build-for-tests: &steps-electron-build-for-tests
     # Save all data needed for a further tests run.
     - *step-persist-data-for-tests
 
-    - *step-maybe-build-dump-syms
     - *step-maybe-generate-breakpad-symbols
     - *step-maybe-zip-symbols
 
@@ -767,7 +834,6 @@ steps-electron-build-for-publish: &steps-electron-build-for-publish
     - *step-maybe-electron-dist-strip
     - *step-electron-dist-build
     - *step-electron-dist-store
-    - *step-maybe-build-dump-syms
     - *step-maybe-generate-breakpad-symbols
     - *step-maybe-zip-symbols
 
@@ -880,7 +946,7 @@ steps-tests: &steps-tests
         name: Run Electron tests
         environment:
           MOCHA_REPORTER: mocha-multi-reporters
-          MOCHA_FILE: junit/test-results.xml
+          ELECTRON_TEST_RESULTS_DIR: junit
           MOCHA_MULTI_REPORTERS: mocha-junit-reporter, tap
           ELECTRON_DISABLE_SECURITY_WARNINGS: 1
         command: |
@@ -890,15 +956,13 @@ steps-tests: &steps-tests
     - run:
         name: Check test results existence
         command: |
-          MOCHA_FILE='src/junit/test-results-remote.xml'
-          # Check if it exists and not empty.
-          if [ ! -s "$MOCHA_FILE" ]; then
+          cd src
+
+          # Check if test results exist and are not empty.
+          if [ ! -s "junit/test-results-remote.xml" ]; then
             exit 1
           fi
-
-          MOCHA_FILE='src/junit/test-results-main.xml'
-          # Check if it exists and not empty.
-          if [ ! -s "$MOCHA_FILE" ]; then
+          if [ ! -s "junit/test-results-main.xml" ]; then
             exit 1
           fi
     - store_test_results:
@@ -923,6 +987,23 @@ steps-test-nan: &steps-test-nan
           export ELECTRON_OUT_DIR=Default
           node electron/script/nan-spec-runner.js
 
+steps-test-node: &steps-test-node
+  steps:
+    - attach_workspace:
+          at: .
+    - *step-depot-tools-add-to-path
+    - *step-electron-dist-unzip
+    - *step-setup-linux-for-headless-testing
+    - *step-fix-known-hosts-linux
+    - run:
+        name: Run Node Tests
+        command: |
+          cd src
+          export ELECTRON_OUT_DIR=Default
+          node electron/script/node-spec-runner.js junit
+    - store_test_results:
+        path: src/junit
+
 chromium-upgrade-branches: &chromium-upgrade-branches
   /chromium\-upgrade\/[0-9]+/
 
@@ -937,33 +1018,47 @@ jobs:
     <<: *steps-lint
 
   # Layer 1: Checkout.
-  linux-checkout:
+  linux-checkout-fast:
     <<: *machine-linux-2xlarge
     environment:
       <<: *env-linux-2xlarge
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
-    <<: *steps-checkout
+    <<: *steps-checkout-fast
+
+  linux-checkout-and-save-cache:
+    <<: *machine-linux-2xlarge
+    environment:
+      <<: *env-linux-2xlarge
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
+    <<: *steps-checkout-and-save-cache
 
   linux-checkout-for-native-tests:
     <<: *machine-linux-2xlarge
     environment:
       <<: *env-linux-2xlarge
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_pyyaml=True'
-    <<: *steps-checkout
+    <<: *steps-checkout-fast
 
   linux-checkout-for-native-tests-with-no-patches:
     <<: *machine-linux-2xlarge
     environment:
       <<: *env-linux-2xlarge
       GCLIENT_EXTRA_ARGS: '--custom-var=apply_patches=False --custom-var=checkout_pyyaml=True'
-    <<: *steps-checkout
+    <<: *steps-checkout-fast
 
-  mac-checkout:
+  mac-checkout-fast:
     <<: *machine-linux-2xlarge
     environment:
       <<: *env-linux-2xlarge
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
-    <<: *steps-checkout
+    <<: *steps-checkout-fast
+
+  mac-checkout-and-save-cache:
+    <<: *machine-linux-2xlarge
+    environment:
+      <<: *env-linux-2xlarge
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
+    <<: *steps-checkout-and-save-cache
 
   # Layer 2: Builds.
   linux-x64-debug:
@@ -1030,7 +1125,7 @@ jobs:
   linux-x64-publish:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       <<: *env-release-build
     <<: *steps-electron-build-for-publish
@@ -1079,7 +1174,7 @@ jobs:
   linux-ia32-publish:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       <<: *env-ia32
       <<: *env-release-build
@@ -1130,7 +1225,7 @@ jobs:
   linux-arm-publish:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       <<: *env-arm
       <<: *env-release-build
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_boto=True --custom-var=checkout_requests=True'
@@ -1197,7 +1292,7 @@ jobs:
   linux-arm64-publish:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       <<: *env-arm64
       <<: *env-release-build
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm64=True --custom-var=checkout_boto=True --custom-var=checkout_requests=True'
@@ -1212,6 +1307,15 @@ jobs:
       <<: *env-ninja-status
     <<: *steps-electron-build-for-tests
 
+  osx-debug:
+    <<: *machine-mac-large
+    environment:
+      <<: *env-mac-large
+      <<: *env-debug-build
+      <<: *env-enable-sccache
+      <<: *env-ninja-status
+    <<: *steps-electron-build-for-tests    
+
   osx-debug-gn-check:
     <<: *machine-mac
     environment:
@@ -1247,7 +1351,7 @@ jobs:
   osx-publish:
     <<: *machine-mac-large
     environment:
-      <<: *env-mac-large
+      <<: *env-mac-large-release
       <<: *env-release-build
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
     <<: *steps-electron-build-for-publish
@@ -1262,6 +1366,16 @@ jobs:
       <<: *env-ninja-status
     <<: *steps-electron-build-for-tests
 
+  mas-debug:
+    <<: *machine-mac-large
+    environment:
+      <<: *env-mac-large
+      <<: *env-mas
+      <<: *env-debug-build
+      <<: *env-enable-sccache
+      <<: *env-ninja-status
+    <<: *steps-electron-build-for-tests
+
   mas-debug-gn-check:
     <<: *machine-mac
     environment:
@@ -1300,7 +1414,7 @@ jobs:
   mas-publish:
     <<: *machine-mac-large
     environment:
-      <<: *env-mac-large
+      <<: *env-mac-large-release
       <<: *env-mas
       <<: *env-release-build
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
@@ -1362,6 +1476,14 @@ jobs:
       <<: *env-stack-dumping
     <<: *steps-test-nan
 
+  linux-x64-testing-node:
+    <<: *machine-linux-2xlarge
+    environment:
+      <<: *env-linux-medium
+      <<: *env-headless-testing
+      <<: *env-stack-dumping
+    <<: *steps-test-node
+
   linux-x64-release-tests:
     <<: *machine-linux-medium
     environment:
@@ -1404,6 +1526,15 @@ jobs:
       <<: *env-stack-dumping
     <<: *steps-test-nan
 
+  linux-ia32-testing-node:
+    <<: *machine-linux-2xlarge
+    environment:
+      <<: *env-linux-medium
+      <<: *env-ia32
+      <<: *env-headless-testing
+      <<: *env-stack-dumping
+    <<: *steps-test-node
+
   linux-ia32-release-tests:
     <<: *machine-linux-medium
     environment:
@@ -1548,76 +1679,90 @@ workflows:
 
   build-linux:
     jobs:
-      - linux-checkout
+      - linux-checkout-fast
+      - linux-checkout-and-save-cache
 
       - linux-x64-debug:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-x64-debug-gn-check:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-x64-testing:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-x64-testing-no-run-as-node:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-x64-testing-gn-check:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-x64-testing-tests:
           requires:
             - linux-x64-testing
       - linux-x64-testing-nan:
           requires:
             - linux-x64-testing
+      - linux-x64-testing-node:
+          requires:
+            - linux-x64-testing
 
       - linux-ia32-debug:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-ia32-testing:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-ia32-testing-tests:
           requires:
             - linux-ia32-testing
       - linux-ia32-testing-nan:
           requires:
             - linux-ia32-testing
+      - linux-ia32-testing-node:
+          requires:
+            - linux-ia32-testing
 
       - linux-arm-debug:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-arm-testing:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
 
       - linux-arm64-debug:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-arm64-debug-gn-check:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-arm64-testing:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
       - linux-arm64-testing-gn-check:
           requires:
-            - linux-checkout
+            - linux-checkout-fast
 
   build-mac:
     jobs:
-      - mac-checkout
+      - mac-checkout-fast
+      - mac-checkout-and-save-cache
+
       - osx-testing:
           requires:
-            - mac-checkout
+            - mac-checkout-fast
+
+      - osx-debug:
+          requires:
+            - mac-checkout-fast
 
       - osx-debug-gn-check:
           requires:
-            - mac-checkout
+            - mac-checkout-fast
+
       - osx-testing-gn-check:
           requires:
-            - mac-checkout
+            - mac-checkout-fast
 
       - osx-testing-tests:
           requires:
@@ -1625,14 +1770,19 @@ workflows:
 
       - mas-testing:
           requires:
-            - mac-checkout
+            - mac-checkout-fast
+
+      - mas-debug:
+          requires:
+            - mac-checkout-fast
 
       - mas-debug-gn-check:
           requires:
-            - mac-checkout
+            - mac-checkout-fast
+
       - mas-testing-gn-check:
           requires:
-            - mac-checkout
+            - mac-checkout-fast
 
       - mas-testing-tests:
           requires:

.github/CODEOWNERS

@@ -11,6 +11,7 @@
 
 # Upgrades WG
 /patches/                               @electron/wg-upgrades
+DEPS                                    @electron/wg-upgrades
 
 # Docs & Tooling WG
 /default_app/ @electron/wg-docs-tools

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -31,11 +31,15 @@ about: Create a report to help us improve Electron
 
 ### To Reproduce
 <!--
-Your best chance of getting this bug looked at quickly is to provide a REPOSITORY that can be cloned and run.
+Your best chance of getting this bug looked at quickly is to provide an example.
 -->
 
 <!--
-You can fork electron-quick-start (https://github.com/electron/electron-quick-start) and include a link to the branch with your changes.
+For bugs that can be encapsulated in a small experiment, you can use Electron Fiddle (https://github.com/electron/fiddle) to publish your example to a GitHub Gist and link it your bug report.
+-->
+
+<!--
+If Fiddle is insufficient to produce an example, please provide an example REPOSITORY that can be cloned and run. You can fork electron-quick-start (https://github.com/electron/electron-quick-start) and include a link to the branch with your changes.
 -->
 
 <!--

BUILD.gn

@@ -1,6 +1,7 @@
 import("//build/config/locales.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
+import("//content/public/app/mac_helpers.gni")
 import("//pdf/features.gni")
 import("//printing/buildflags/buildflags.gni")
 import("//third_party/ffmpeg/ffmpeg_options.gni")
@@ -10,6 +11,7 @@ import("//tools/grit/repack.gni")
 import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
 import("//v8/gni/snapshot_toolchain.gni")
 import("build/asar.gni")
+import("build/extract_symbols.gni")
 import("build/npm.gni")
 import("build/templated_file.gni")
 import("build/tsc.gni")
@@ -24,6 +26,7 @@ if (is_mac) {
   import("//third_party/icu/config.gni")
   import("//ui/gl/features.gni")
   import("//v8/gni/v8.gni")
+  import("build/rules.gni")
 }
 
 if (is_linux) {
@@ -174,7 +177,7 @@ action("atom_js2c") {
               "$target_gen_dir/js2c/asar_init.js",
             ]
 
-  inputs = sources
+  inputs = sources + [ "//third_party/electron_node/tools/js2c.py" ]
   outputs = [
     "$root_gen_dir/atom_natives.cc",
   ]
@@ -296,17 +299,8 @@ source_set("manifests") {
   deps = [
     "//electron/shell/common/api:mojo",
     "//printing/buildflags",
-    "//services/proxy_resolver/public/cpp:manifest",
     "//services/service_manager/public/cpp",
   ]
-
-  if (enable_basic_printing) {
-    deps += [ "//components/services/pdf_compositor/public/cpp:manifest" ]
-  }
-
-  if (enable_print_preview) {
-    deps += [ "//chrome/services/printing/public/cpp:manifest" ]
-  }
 }
 
 npm_action("electron_version_args") {
@@ -335,7 +329,7 @@ templated_file("electron_version_header") {
   args_files = get_target_outputs(":electron_version_args")
 }
 
-static_library("electron_lib") {
+source_set("electron_lib") {
   configs += [ "//v8:external_startup_data" ]
   configs += [ "//third_party/electron_node:node_internals" ]
 
@@ -353,8 +347,11 @@ static_library("electron_lib") {
     "//base:base_static",
     "//base/allocator:buildflags",
     "//chrome/app/resources:platform_locale_settings",
+    "//chrome/services/printing/public/mojom",
     "//components/certificate_transparency",
     "//components/net_log",
+    "//components/network_hints/common",
+    "//components/network_hints/renderer",
     "//components/network_session_configurator/common",
     "//components/prefs",
     "//components/spellcheck/renderer",
@@ -367,9 +364,10 @@ static_library("electron_lib") {
     "//content/public/renderer",
     "//content/public/utility",
     "//device/bluetooth",
+    "//device/bluetooth/public/cpp",
     "//gin",
     "//media/capture/mojom:video_capture",
-    "//media/mojo/interfaces",
+    "//media/mojo/mojom",
     "//net:extras",
     "//net:net_resources",
     "//net:net_with_v8",
@@ -382,7 +380,7 @@ static_library("electron_lib") {
     "//services/device/public/mojom",
     "//services/proxy_resolver:lib",
     "//services/video_capture/public/mojom:constants",
-    "//services/viz/privileged/interfaces/compositing",
+    "//services/viz/privileged/mojom/compositing",
     "//skia",
     "//third_party/blink/public:blink",
     "//third_party/boringssl",
@@ -474,6 +472,7 @@ static_library("electron_lib") {
   if (is_mac) {
     deps += [
       "//components/remote_cocoa/app_shim",
+      "//content/common:mac_helpers",
       "//ui/accelerated_widget_mac",
     ]
     sources += [
@@ -518,6 +517,7 @@ static_library("electron_lib") {
     ]
     configs += [ ":gio_unix" ]
     include_dirs += [ "//third_party/breakpad" ]
+    configs += [ "//build/config/linux:x11" ]
     defines += [
       # Disable warnings for g_settings_list_schemas.
       "GLIB_DISABLE_DEPRECATION_WARNINGS",
@@ -575,15 +575,16 @@ static_library("electron_lib") {
     ]
     deps += [
       "//components/viz/service",
-      "//services/viz/public/interfaces",
+      "//services/viz/public/mojom",
       "//ui/compositor",
     ]
   }
 
   if (enable_desktop_capturer) {
-    if (is_component_build && is_win) {
+    if (is_component_build && !is_linux) {
       # On windows the implementation relies on unexported
-      # DxgiDuplicatorController class.
+      # DxgiDuplicatorController class.  On macOS the implementation
+      # relies on unexported webrtc::GetWindowOwnerPid method.
       deps += [ "//third_party/webrtc/modules/desktop_capture" ]
     }
     sources += [
@@ -623,6 +624,20 @@ static_library("electron_lib") {
   if (enable_pepper_flash) {
     deps += [ "components/pepper_flash" ]
   }
+
+  public_deps += [ "shell/common/extensions/api:extensions_features" ]
+  deps += [
+    "//components/pref_registry",
+    "//components/user_prefs",
+    "//extensions/browser",
+    "//extensions/browser:core_api_provider",
+    "//extensions/common",
+    "//extensions/common:core_api_provider",
+    "//extensions/renderer",
+  ]
+  if (enable_electron_extensions) {
+    sources += filenames.lib_sources_extensions
+  }
 }
 
 electron_paks("packed_resources") {
@@ -639,6 +654,13 @@ if (is_mac) {
   electron_helper_name = "$electron_product_name Helper"
   electron_login_helper_name = "$electron_product_name Login Helper"
   electron_framework_version = "A"
+  electron_version = read_file("ELECTRON_VERSION", "trim string")
+
+  mac_xib_bundle_data("electron_xibs") {
+    sources = [
+      "shell/common/resources/mac/MainMenu.xib",
+    ]
+  }
 
   bundle_data("electron_framework_resources") {
     public_deps = [
@@ -754,13 +776,13 @@ if (is_mac) {
       ":electron_framework_libraries",
       ":electron_framework_resources",
       ":electron_swiftshader_library",
+      ":electron_xibs",
     ]
     if (!is_mas_build) {
       deps += [ ":electron_crashpad_helper" ]
     }
     info_plist = "shell/common/resources/mac/Info.plist"
 
-    electron_version = read_file("ELECTRON_VERSION", "trim string")
     extra_substitutions = [
       "ELECTRON_BUNDLE_ID=$electron_mac_bundle_id.framework",
       "ELECTRON_VERSION=$electron_version",
@@ -800,37 +822,49 @@ if (is_mac) {
     }
   }
 
-  mac_app_bundle("electron_helper_app") {
-    output_name = electron_helper_name
-    deps = [
-      ":electron_framework+link",
-    ]
-    if (!is_mas_build) {
-      deps += [ "//sandbox/mac:seatbelt" ]
-    }
-    defines = [ "HELPER_EXECUTABLE" ]
-    sources = filenames.app_sources
-    sources += [ "shell/common/atom_constants.cc" ]
-    include_dirs = [ "." ]
-    info_plist = "shell/renderer/resources/mac/Info.plist"
-    extra_substitutions =
-        [ "ELECTRON_BUNDLE_ID=$electron_mac_bundle_id.helper" ]
-    ldflags = [
-      "-rpath",
-      "@executable_path/../../..",
-    ]
-    if (is_component_build) {
-      ldflags += [
-        "-rpath",
-        "@executable_path/../../../../../..",
+  template("electron_helper_app") {
+    mac_app_bundle(target_name) {
+      assert(defined(invoker.helper_name_suffix))
+
+      output_name = electron_helper_name + invoker.helper_name_suffix
+      deps = [
+        ":electron_framework+link",
       ]
+      if (!is_mas_build) {
+        deps += [ "//sandbox/mac:seatbelt" ]
+      }
+      defines = [ "HELPER_EXECUTABLE" ]
+      sources = filenames.app_sources
+      sources += [ "shell/common/atom_constants.cc" ]
+      include_dirs = [ "." ]
+      info_plist = "shell/renderer/resources/mac/Info.plist"
+      extra_substitutions =
+          [ "ELECTRON_BUNDLE_ID=$electron_mac_bundle_id.helper" ]
+      ldflags = [
+        "-rpath",
+        "@executable_path/../../..",
+      ]
+      if (is_component_build) {
+        ldflags += [
+          "-rpath",
+          "@executable_path/../../../../../..",
+        ]
+      }
+    }
+  }
+
+  foreach(helper_params, content_mac_helpers) {
+    _helper_target = helper_params[0]
+    _helper_bundle_id = helper_params[1]
+    _helper_suffix = helper_params[2]
+    electron_helper_app("electron_helper_app_${_helper_target}") {
+      helper_name_suffix = _helper_suffix
     }
   }
 
   bundle_data("electron_app_framework_bundle_data") {
     sources = [
       "$root_out_dir/$electron_framework_name.framework",
-      "$root_out_dir/$electron_helper_name.app",
     ]
     if (!is_mas_build) {
       sources += [
@@ -844,8 +878,13 @@ if (is_mac) {
     ]
     public_deps = [
       ":electron_framework+link",
-      ":electron_helper_app",
     ]
+
+    foreach(helper_params, content_mac_helpers) {
+      sources +=
+          [ "$root_out_dir/${electron_helper_name}${helper_params[2]}.app" ]
+      public_deps += [ ":electron_helper_app_${helper_params[0]}" ]
+    }
   }
 
   mac_app_bundle("electron_login_helper") {
@@ -927,7 +966,6 @@ if (is_mac) {
       deps += [ ":electron_login_helper_app" ]
     }
     info_plist = "shell/browser/resources/mac/Info.plist"
-    electron_version = read_file("ELECTRON_VERSION", "trim string")
     extra_substitutions = [
       "ELECTRON_BUNDLE_ID=$electron_mac_bundle_id",
       "ELECTRON_VERSION=$electron_version",
@@ -937,6 +975,85 @@ if (is_mac) {
       "@executable_path/../Frameworks",
     ]
   }
+
+  if (enable_dsyms) {
+    extract_symbols("electron_framework_syms") {
+      binary = "$root_out_dir/$electron_framework_name.framework/Versions/$electron_framework_version/$electron_framework_name"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      dsym_file = "$root_out_dir/$electron_framework_name.dSYM/Contents/Resources/DWARF/$electron_framework_name"
+      deps = [
+        ":electron_framework",
+      ]
+    }
+
+    foreach(helper_params, content_mac_helpers) {
+      _helper_target = helper_params[0]
+      _helper_bundle_id = helper_params[1]
+      _helper_suffix = helper_params[2]
+      extract_symbols("electron_helper_syms_${_helper_target}") {
+        binary = "$root_out_dir/$electron_helper_name${_helper_suffix}.app/Contents/MacOS/$electron_helper_name${_helper_suffix}"
+        symbol_dir = "$root_out_dir/breakpad_symbols"
+        dsym_file = "$root_out_dir/$electron_helper_name${_helper_suffix}.dSYM/Contents/Resources/DWARF/$electron_helper_name${_helper_suffix}"
+        deps = [
+          ":electron_helper_app_${_helper_target}",
+        ]
+      }
+    }
+
+    extract_symbols("electron_app_syms") {
+      binary = "$root_out_dir/$electron_product_name.app/Contents/MacOS/$electron_product_name"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      dsym_file = "$root_out_dir/$electron_product_name.dSYM/Contents/Resources/DWARF/$electron_product_name"
+      deps = [
+        ":electron_app",
+      ]
+    }
+
+    extract_symbols("swiftshader_egl_syms") {
+      binary = "$root_out_dir/libswiftshader_libEGL.dylib"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      dsym_file = "$root_out_dir/libswiftshader_libEGL.dylib.dSYM/Contents/Resources/DWARF/libswiftshader_libEGL.dylib"
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libEGL:swiftshader_libEGL",
+      ]
+    }
+
+    extract_symbols("swiftshader_gles_syms") {
+      binary = "$root_out_dir/libswiftshader_libGLESv2.dylib"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      dsym_file = "$root_out_dir/libswiftshader_libGLESv2.dylib.dSYM/Contents/Resources/DWARF/libswiftshader_libGLESv2.dylib"
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libGLESv2:swiftshader_libGLESv2",
+      ]
+    }
+
+    extract_symbols("crashpad_handler_syms") {
+      binary = "$root_out_dir/crashpad_handler"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      dsym_file = "$root_out_dir/crashpad_handler.dSYM/Contents/Resources/DWARF/crashpad_handler"
+      deps = [
+        "//third_party/crashpad/crashpad/handler:crashpad_handler",
+      ]
+    }
+
+    group("electron_symbols") {
+      deps = [
+        ":crashpad_handler_syms",
+        ":electron_app_syms",
+        ":electron_framework_syms",
+        ":swiftshader_egl_syms",
+        ":swiftshader_gles_syms",
+      ]
+
+      foreach(helper_params, content_mac_helpers) {
+        _helper_target = helper_params[0]
+        deps += [ ":electron_helper_syms_${_helper_target}" ]
+      }
+    }
+  } else {
+    group("electron_symbols") {
+    }
+  }
 } else {
   windows_manifest("electron_app_manifest") {
     sources = [
@@ -984,7 +1101,6 @@ if (is_mac) {
     if (is_win) {
       sources += [
         # TODO: we should be generating our .rc files more like how chrome does
-        "shell/browser/resources/win/atom.ico",
         "shell/browser/resources/win/atom.rc",
         "shell/browser/resources/win/resource.h",
       ]
@@ -1012,6 +1128,7 @@ if (is_mac) {
       # See https://github.com/nodejs/node-gyp/commit/52ceec3a6d15de3a8f385f43dbe5ecf5456ad07a
       ldflags += [ "/DEF:" + rebase_path("build/electron.def", root_build_dir) ]
       inputs = [
+        "shell/browser/resources/win/atom.ico",
         "build/electron.def",
       ]
     }
@@ -1023,6 +1140,49 @@ if (is_mac) {
       }
     }
   }
+
+  if (is_official_build) {
+    if (is_linux) {
+      _target_executable_suffix = ""
+      _target_shared_library_suffix = ".so"
+    } else if (is_win) {
+      _target_executable_suffix = ".exe"
+      _target_shared_library_suffix = ".dll"
+    }
+
+    extract_symbols("electron_app_symbols") {
+      binary = "$root_out_dir/$electron_project_name$_target_executable_suffix"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      deps = [
+        ":electron_app",
+      ]
+    }
+
+    extract_symbols("swiftshader_egl_symbols") {
+      binary = "$root_out_dir/swiftshader/libEGL$_target_shared_library_suffix"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libEGL:swiftshader_libEGL",
+      ]
+    }
+
+    extract_symbols("swiftshader_gles_symbols") {
+      binary =
+          "$root_out_dir/swiftshader/libGLESv2$_target_shared_library_suffix"
+      symbol_dir = "$root_out_dir/breakpad_symbols"
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libGLESv2:swiftshader_libGLESv2",
+      ]
+    }
+
+    group("electron_symbols") {
+      deps = [
+        ":electron_app_symbols",
+        ":swiftshader_egl_symbols",
+        ":swiftshader_gles_symbols",
+      ]
+    }
+  }
 }
 
 template("dist_zip") {

DEPS

@@ -5,16 +5,17 @@ gclient_gn_args = [
   'checkout_android_native_support',
   'checkout_libaom',
   'checkout_nacl',
-  'checkout_oculus_sdk'
+  'checkout_oculus_sdk',
+  'checkout_openxr'
 ]
 
 vars = {
   'chromium_version':
-    'f200986dfaabd6aad6a4b37dad7aae42fec349e9',
+    '78.0.3904.113',
   'node_version':
-    '0a300f60bce0c8f0cb3d846fcb0e1f55f26013ee',
+    'v12.8.1',
   'nan_version':
-    '960dd6c70fc9eb136efdf37b4bef18fadbc3436f',
+    '2ee313aaca52e2b478965ac50eb5082520380d1b',
 
   'boto_version': 'f7574aa6cc2c819430c1f05e9a1a1a666ef8169b',
   'pyyaml_version': '3.12',
@@ -23,8 +24,7 @@ vars = {
   'boto_git': 'https://github.com/boto',
   'chromium_git': 'https://chromium.googlesource.com',
   'electron_git': 'https://github.com/electron',
-  # FIXME: Once https://github.com/nodejs/nan/pull/857 lands this should point at nodejs/nan
-  'nodejs_git': 'https://github.com/marshallofsound',
+  'nodejs_git': 'https://github.com/nodejs',
   'requests_git': 'https://github.com/kennethreitz',
   'yaml_git': 'https://github.com/yaml',
 
@@ -61,6 +61,8 @@ vars = {
     True,
   'checkout_oculus_sdk':
     False,
+  'checkout_openxr':
+    False,
   'build_with_chromium':
     True,
   'checkout_android':
@@ -79,7 +81,7 @@ deps = {
     'condition': 'checkout_nan and process_deps',
   },
   'src/third_party/electron_node': {
-    'url': (Var("electron_git")) + '/node.git@' + (Var("node_version")),
+    'url': (Var("nodejs_git")) + '/node.git@' + (Var("node_version")),
     'condition': 'checkout_node and process_deps',
   },
   'src/electron/vendor/pyyaml': {
@@ -112,7 +114,7 @@ hooks = [
     'pattern': 'src/electron/script/update-external-binaries.py',
     'condition': 'download_external_binaries',
     'action': [
-      'python',
+      'python3',
       'src/electron/script/update-external-binaries.py',
     ],
   },

Dockerfile

@@ -10,6 +10,7 @@ RUN chmod a+rwx /tmp
 # Install Linux packages
 ADD build/install-build-deps.sh /setup/install-build-deps.sh
 RUN echo ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true | debconf-set-selections
+RUN dpkg --add-architecture i386
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
     curl \
     libnotify-bin \
@@ -22,6 +23,8 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
     sudo \
     vim-nox \
     wget \
+    g++-multilib \
+    libgl1:i386 \
   && /setup/install-build-deps.sh --syms --no-prompt --no-chromeos-fonts --lib32 --arm \
   && rm -rf /var/lib/apt/lists/*
 

Dockerfile.arm32v7

@@ -19,8 +19,6 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  libcap-dev \
  libcups2-dev \
  libdbus-1-dev \
- libgconf-2-4 \
- libgconf2-dev \
  libgnome-keyring-dev \
  libgtk2.0-0 \
  libgtk2.0-dev \

Dockerfile.arm64v8

@@ -1,4 +1,4 @@
-FROM arm64v8/ubuntu:16.04
+FROM arm64v8/ubuntu:18.04
 
 RUN groupadd --gid 1000 builduser \
   && useradd --uid 1000 --gid builduser --shell /bin/bash --create-home builduser
@@ -22,8 +22,6 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  libcap-dev \
  libcups2-dev \
  libdbus-1-dev \
- libgconf-2-4 \
- libgconf2-dev \
  libgnome-keyring-dev \
  libgtk2.0-0 \
  libgtk2.0-dev \
@@ -41,7 +39,6 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  nano \
  python-setuptools \
  python-pip \
- python-dbusmock \
  sudo \
  unzip \
  wget \
@@ -56,6 +53,9 @@ RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - \
 # crcmod is required by gsutil, which is used for filling the gclient git cache
 RUN pip install -U crcmod
 
+# dbusmock is needed for Electron tests
+RUN pip install python-dbusmock
+
 ADD tools/xvfb-init.sh /etc/init.d/xvfb
 RUN chmod a+x /etc/init.d/xvfb
 

ELECTRON_VERSION

@@ -1 +1 @@
-7.0.0-nightly.20190702
+7.1.2

appveyor.yml

@@ -29,11 +29,13 @@
 
 version: 1.0.{build}
 build_cloud: libcc-20
-image: libcc-20-vs2017-15.9
+image: vs2017-15.9-10.0.18362
 environment:
   GIT_CACHE_PATH: C:\Users\electron\libcc_cache
   ELECTRON_OUT_DIR: Default
   ELECTRON_ENABLE_STACK_DUMPING: 1
+  MOCHA_REPORTER: mocha-multi-reporters
+  MOCHA_MULTI_REPORTERS: mocha-appveyor-reporter, tap
 notifications:
   - provider: Webhook
     url: https://electron-mission-control.herokuapp.com/rest/appveyor-hook
@@ -52,13 +54,13 @@ build_script:
   - echo "Building $env:GN_CONFIG build"
   - git config --global core.longpaths true
   - cd ..
-  - ps: if (Test-Path src\electron) { Remove-Item src\electron -Recurse }
+  - mkdir src
   - ps: Move-Item $env:APPVEYOR_BUILD_FOLDER -Destination src\electron
   - ps: $env:CHROMIUM_BUILDTOOLS_PATH="$pwd\src\buildtools"
   - ps: $env:SCCACHE_PATH="$pwd\src\electron\external_binaries\sccache.exe"
   - ps: >-
       if ($env:GN_CONFIG -eq 'release') {
-        $env:GCLIENT_EXTRA_ARGS="--custom-var=checkout_boto=True --custom-var=checkout_requests=True"
+        $env:GCLIENT_EXTRA_ARGS="$env:GCLIENT_EXTRA_ARGS --custom-var=checkout_boto=True --custom-var=checkout_requests=True"
       } else {
         $env:NINJA_STATUS="[%r processes, %f/%t @ %o/s : %es] "
       }
@@ -87,11 +89,16 @@ build_script:
   - appveyor PushArtifact out/Default/dist.zip
   - appveyor PushArtifact out/Default/chromedriver.zip
   - appveyor PushArtifact out/ffmpeg/ffmpeg.zip
+  - 7z a node_headers.zip out\Default\gen\node_headers
+  - appveyor PushArtifact node_headers.zip
+  - appveyor PushArtifact out/Default/mksnapshot.zip
+  - appveyor PushArtifact out/Default/electron.lib
   - ps: >-
       if ($env:GN_CONFIG -eq 'release') {
-        ninja -C out/Default third_party/breakpad:dump_syms
+        # Needed for msdia140.dll on 64-bit windows
+        $env:Path += ";$pwd\third_party\llvm-build\Release+Asserts\bin"
+        ninja -C out/Default electron:electron_symbols
       }
-  - if "%GN_CONFIG%"=="release" ( python electron\script\dump-symbols.py -d %cd%\out\Default\breakpad_symbols -v)
   - ps: >-
       if ($env:GN_CONFIG -eq 'release') {
         python electron\script\zip-symbols.py
@@ -102,7 +109,7 @@ test_script:
   # Workaround for https://github.com/appveyor/ci/issues/2420
   - set "PATH=%PATH%;C:\Program Files\Git\mingw64\libexec\git-core"
   - ps: >-
-      if ((-Not (Test-Path Env:\ELECTRON_RELEASE)) -And ($env:GN_CONFIG -in "testing", "release")) {
+      if ((-Not (Test-Path Env:\TEST_WOA)) -And (-Not (Test-Path Env:\ELECTRON_RELEASE)) -And ($env:GN_CONFIG -in "testing", "release")) {
         $env:RUN_TESTS="true"
       }
   - ps: >-
@@ -130,4 +137,6 @@ deploy_script:
           Write-Output "Uploading Electron release distribution to github releases"
           & python script\release\uploaders\upload.py
         }
+      } elseif (Test-Path Env:\TEST_WOA) {
+        node script/release/ci-release-build.js --job=electron-woa-testing --ci=VSTS --armTest --appveyorJobId=$env:APPVEYOR_JOB_ID $env:APPVEYOR_REPO_BRANCH
       }

azure-pipelines-woa.yml

@@ -0,0 +1,84 @@
+steps:
+- task: CopyFiles@2
+  displayName: 'Copy Files to: src\electron'
+  inputs:
+    TargetFolder: src\electron
+
+- script: |
+    cd src\electron
+    node script/yarn.js install --frozen-lockfile
+  displayName: 'Yarn install'
+
+- powershell: |
+    $localArtifactPath = "$pwd\dist.zip"
+    $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/dist.zip"
+    Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
+    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -osrc\out\Default -y $localArtifactPath
+  displayName: 'Download and extract dist.zip for test'
+  env:
+    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
+
+- powershell: |
+    $localArtifactPath = "$pwd\ffmpeg.zip"
+    $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/ffmpeg.zip"
+    Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
+    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -osrc\out\ffmpeg $localArtifactPath
+  displayName: 'Download and extract ffmpeg.zip for test'
+  env:
+    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
+
+- powershell: |
+    $localArtifactPath = "$pwd\src\node_headers.zip"
+    $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/node_headers.zip"
+    Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
+    cd src
+    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -y node_headers.zip
+  displayName: 'Download node headers for test'
+  env:
+    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
+
+- powershell: |
+    $localArtifactPath = "$pwd\src\out\Default\electron.lib"
+    $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/electron.lib"
+    Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
+  displayName: 'Download electron.lib for test'
+  env:
+    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
+
+- powershell: |
+    New-Item src\out\Default\gen\node_headers\Release -Type directory
+    Copy-Item -path src\out\Default\electron.lib -destination src\out\Default\gen\node_headers\Release\node.lib
+  displayName: 'Setup node headers'
+
+- script: |
+    cd src
+    set npm_config_nodedir=%cd%\out\Default\gen\node_headers
+    set npm_config_arch=arm64
+    cd electron
+    node script/yarn test -- --ci --enable-logging --verbose
+  displayName: 'Run Electron tests'
+  env:
+    ELECTRON_OUT_DIR: Default
+    IGNORE_YARN_INSTALL_ERROR: 1
+    ELECTRON_TEST_RESULTS_DIR: junit
+    MOCHA_MULTI_REPORTERS: 'mocha-junit-reporter, tap'
+    MOCHA_REPORTER: mocha-multi-reporters
+
+- task: PublishTestResults@2
+  displayName: 'Publish Test Results'
+  inputs:
+    testResultsFiles: '*.xml'
+    searchFolder: '$(System.DefaultWorkingDirectory)/src/junit/'
+  condition: always()
+
+- script: |
+    cd src
+    echo "Verifying non proprietary ffmpeg"
+    python electron\script\verify-ffmpeg.py --build-dir out\Default --source-root %cd% --ffmpeg-path out\ffmpeg
+  displayName: 'Verify ffmpeg'
+
+- powershell: |
+    Get-Process | Where Name –Like "electron*" | Stop-Process
+    Get-Process | Where Name –Like "MicrosoftEdge*" | Stop-Process
+  displayName: 'Kill processes left running from last test run'
+  condition: always()

build/args/all.gn

@@ -3,7 +3,7 @@ use_jumbo_build = true
 root_extra_deps = [ "//electron" ]
 
 # Registry of NMVs --> https://github.com/nodejs/node/blob/master/doc/abi_version_registry.json
-node_module_version = 73
+node_module_version = 75
 
 v8_promise_internal_field_count = 1
 v8_typed_array_max_size_in_heap = 0
@@ -20,3 +20,7 @@ enable_basic_printing = true
 angle_enable_vulkan_validation_layers = false
 
 is_cfi = false
+
+# TODO: Remove this and update CI to contain 10.14 SDK once
+# crbug.com/986701 is fixed.
+mac_sdk_min = "10.13"

build/args/ffmpeg.gn

@@ -4,3 +4,4 @@ is_component_ffmpeg = true
 is_official_build = true
 proprietary_codecs = false
 ffmpeg_branding = "Chromium"
+enable_dsyms = false

build/dump_syms.py

@@ -0,0 +1,53 @@
+from __future__ import print_function
+
+import collections
+import os
+import subprocess
+import sys
+import errno
+
+# The BINARY_INFO tuple describes a binary as dump_syms identifies it.
+BINARY_INFO = collections.namedtuple('BINARY_INFO',
+                                     ['platform', 'arch', 'hash', 'name'])
+
+def get_module_info(header_info):
+  # header info is of the form "MODULE $PLATFORM $ARCH $HASH $BINARY"
+  info_split = header_info.strip().split(' ', 4)
+  if len(info_split) != 5 or info_split[0] != 'MODULE':
+    return None
+  return BINARY_INFO(*info_split[1:])
+
+def get_symbol_path(symbol_data):
+  module_info = get_module_info(symbol_data[:symbol_data.index('\n')])
+  if not module_info:
+    raise Exception("Couldn't get module info for binary '{}'".format(binary))
+  exe_name = module_info.name.replace('.pdb', '')
+  return os.path.join(module_info.name, module_info.hash, exe_name + ".sym")
+
+def mkdir_p(path):
+  """Simulates mkdir -p."""
+  try:
+    os.makedirs(path)
+  except OSError as e:
+    if e.errno == errno.EEXIST and os.path.isdir(path):
+      pass
+    else: raise
+
+def main(dump_syms, binary, out_dir, stamp_file, dsym_file=None):
+  args = [dump_syms]
+  if dsym_file:
+    args += ["-g", dsym_file]
+  args += [binary]
+
+  symbol_data = subprocess.check_output(args)
+  symbol_path = os.path.join(out_dir, get_symbol_path(symbol_data))
+  mkdir_p(os.path.dirname(symbol_path))
+
+  with open(symbol_path, 'w') as out:
+    out.write(symbol_data)
+
+  with open(stamp_file, 'w'):
+    pass
+
+if __name__ == '__main__':
+  main(*sys.argv[1:])

build/extract_symbols.gni

@@ -0,0 +1,55 @@
+import("//build/toolchain/toolchain.gni")
+
+# Extracts symbols from a binary into a symbol file using dump_syms.
+#
+# Args:
+#   binary: Path to the binary containing symbols to extract, e.g.:
+#       "$root_out_dir/electron"
+#   symbol_dir: Desired output directory for symbols, e.g.:
+#       "$root_out_dir/breakpad_symbols"
+
+if (host_os == "win") {
+  _host_executable_suffix = ".exe"
+} else {
+  _host_executable_suffix = ""
+}
+
+template("extract_symbols") {
+  action(target_name) {
+    forward_variables_from(invoker,
+                           [
+                             "deps",
+                             "testonly",
+                           ])
+    assert(defined(invoker.binary), "Need binary to dump")
+    assert(defined(invoker.symbol_dir), "Need directory for symbol output")
+
+    dump_syms_label = "//third_party/breakpad:dump_syms($host_toolchain)"
+    dump_syms_binary = get_label_info(dump_syms_label, "root_out_dir") +
+                       "/dump_syms$_host_executable_suffix"
+
+    script = "//electron/build/dump_syms.py"
+    inputs = [
+      invoker.binary,
+      dump_syms_binary,
+    ]
+    stamp_file = "${target_gen_dir}/${target_name}.stamp"
+    outputs = [
+      stamp_file,
+    ]
+    args = [
+      "./" + rebase_path(dump_syms_binary, root_build_dir),
+      rebase_path(invoker.binary, root_build_dir),
+      rebase_path(invoker.symbol_dir, root_build_dir),
+      rebase_path(stamp_file, root_build_dir),
+    ]
+    if (defined(invoker.dsym_file)) {
+      args += [ rebase_path(invoker.dsym_file, root_build_dir) ]
+    }
+
+    if (!defined(deps)) {
+      deps = []
+    }
+    deps += [ dump_syms_label ]
+  }
+}

build/install-build-deps.sh

@@ -255,16 +255,10 @@ backwards_compatible_list="\
   libappindicator-dev
   libappindicator1
   libappindicator3-1:i386
-  libdconf-dev
-  libdconf-dev:i386
-  libdconf1
-  libdconf1:i386
   libexif-dev
   libexif12
   libexif12:i386
   libgbm-dev
-  libgconf-2-4:i386
-  libgconf2-dev
   libgl1-mesa-dev
   libgl1-mesa-glx:i386
   libgles2-mesa-dev

build/rules.gni

@@ -0,0 +1,57 @@
+import("//build/config/mac/mac_sdk.gni")
+
+# This is imported from /ios becuase this functionality was moved
+# after Chromium stopped using xib files for macOS menu functionality
+# See https://chromium-review.googlesource.com/c/chromium/src/+/1648695
+import("//build/config/ios/rules.gni")
+
+# Template is copied here from Chromium but was removed in
+# https://chromium-review.googlesource.com/c/chromium/src/+/1637981
+# Template to compile and package Mac XIB files as bundle data.
+# Arguments
+#     sources:
+#         list of string, sources to comiple
+#     output_path:
+#         (optional) string, the path to use for the outputs list in the
+#         bundle_data step. If unspecified, defaults to bundle_resources_dir.
+template("mac_xib_bundle_data") {
+  _target_name = target_name
+  _compile_target_name = _target_name + "_compile_ibtool"
+
+  compile_ib_files(_compile_target_name) {
+    forward_variables_from(invoker, [ "testonly" ])
+    visibility = [ ":$_target_name" ]
+    sources = invoker.sources
+    output_extension = "nib"
+    ibtool_flags = [
+      "--minimum-deployment-target",
+      mac_deployment_target,
+
+      # TODO(rsesek): Enable this once all the bots are on Xcode 7+.
+      # "--target-device",
+      # "mac",
+    ]
+  }
+
+  bundle_data(_target_name) {
+    forward_variables_from(invoker,
+                           [
+                             "testonly",
+                             "visibility",
+                           ])
+
+    public_deps = [
+      ":$_compile_target_name",
+    ]
+    sources = get_target_outputs(":$_compile_target_name")
+
+    _output_path = "{{bundle_resources_dir}}"
+    if (defined(invoker.output_path)) {
+      _output_path = invoker.output_path
+    }
+
+    outputs = [
+      "$_output_path/{{source_file_part}}",
+    ]
+  }
+}

build/tsc.gni

@@ -24,7 +24,6 @@ template("typescript_build") {
       "//electron/yarn.lock",
       "//electron/typings/internal-ambient.d.ts",
       "//electron/typings/internal-electron.d.ts",
-      "//electron/typings/internal-helpers.d.ts",
     ]
 
     type_roots = "node_modules/@types,typings"

build/webpack/webpack.config.base.js

@@ -74,7 +74,10 @@ module.exports = ({
           global: ['@electron/internal/renderer/webpack-provider', '_global'],
           Buffer: ['@electron/internal/renderer/webpack-provider', 'Buffer'],
         })
-      ] : [])
+      ] : []),
+      new webpack.ProvidePlugin({
+        Promise: ['@electron/internal/common/webpack-globals-provider', 'Promise'],
+      }),
     ]
   })
-}
+}

build/webpack/webpack.gni

@@ -20,7 +20,6 @@ template("webpack_build") {
                "//electron/yarn.lock",
                "//electron/typings/internal-ambient.d.ts",
                "//electron/typings/internal-electron.d.ts",
-               "//electron/typings/internal-helpers.d.ts",
              ] + invoker.inputs
 
     args = [

buildflags/BUILD.gn

@@ -17,6 +17,8 @@ buildflag_header("buildflags") {
     "ENABLE_PDF_VIEWER=$enable_pdf_viewer",
     "ENABLE_TTS=$enable_tts",
     "ENABLE_COLOR_CHOOSER=$enable_color_chooser",
+    "ENABLE_ELECTRON_EXTENSIONS=$enable_electron_extensions",
+    "ENABLE_PICTURE_IN_PICTURE=$enable_picture_in_picture",
     "OVERRIDE_LOCATION_PROVIDER=$enable_fake_location_provider",
   ]
 }

buildflags/buildflags.gni

@@ -18,6 +18,8 @@ declare_args() {
 
   enable_color_chooser = true
 
+  enable_picture_in_picture = true
+
   # Provide a fake location provider for mocking
   # the geolocation responses. Disable it if you
   # need to test with chromium's location provider.
@@ -26,4 +28,7 @@ declare_args() {
 
   # Enable flash plugin support.
   enable_pepper_flash = true
+
+  # Enable Chrome extensions support.
+  enable_electron_extensions = false
 }

chromium_src/BUILD.gn

@@ -37,6 +37,12 @@ static_library("chrome") {
     "//chrome/browser/net/proxy_config_monitor.h",
     "//chrome/browser/net/proxy_service_factory.cc",
     "//chrome/browser/net/proxy_service_factory.h",
+    "//chrome/browser/predictors/preconnect_manager.cc",
+    "//chrome/browser/predictors/preconnect_manager.h",
+    "//chrome/browser/predictors/proxy_lookup_client_impl.cc",
+    "//chrome/browser/predictors/proxy_lookup_client_impl.h",
+    "//chrome/browser/predictors/resolve_host_client_impl.cc",
+    "//chrome/browser/predictors/resolve_host_client_impl.h",
     "//chrome/browser/ssl/security_state_tab_helper.cc",
     "//chrome/browser/ssl/security_state_tab_helper.h",
     "//chrome/browser/ui/autofill/popup_view_common.cc",
@@ -55,6 +61,7 @@ static_library("chrome") {
     "//content/public/browser",
   ]
   deps = [
+    "//chrome/browser:resource_prefetch_predictor_proto",
     "//components/feature_engagement:buildflags",
   ]
 
@@ -102,6 +109,10 @@ static_library("chrome") {
         "//chrome/browser/ui/cocoa/color_chooser_mac.h",
         "//chrome/browser/ui/cocoa/color_chooser_mac.mm",
       ]
+      deps += [
+        "//components/remote_cocoa/app_shim",
+        "//components/remote_cocoa/browser",
+      ]
     }
 
     if (is_win) {
@@ -122,10 +133,6 @@ static_library("chrome") {
     sources += [
       "//chrome/browser/speech/tts_controller_delegate_impl.cc",
       "//chrome/browser/speech/tts_controller_delegate_impl.h",
-      "//chrome/browser/speech/tts_message_filter.cc",
-      "//chrome/browser/speech/tts_message_filter.h",
-      "//chrome/renderer/tts_dispatcher.cc",
-      "//chrome/renderer/tts_dispatcher.h",
     ]
   }
 
@@ -155,17 +162,21 @@ static_library("chrome") {
       "//chrome/browser/printing/printer_query.h",
       "//chrome/browser/printing/printing_message_filter.cc",
       "//chrome/browser/printing/printing_message_filter.h",
+      "//chrome/browser/printing/printing_service.cc",
+      "//chrome/browser/printing/printing_service.h",
     ]
+
     public_deps += [
       "//chrome/services/printing:lib",
       "//components/printing/browser",
       "//components/printing/renderer",
-      "//components/services/pdf_compositor/public/cpp:factory",
-      "//components/services/pdf_compositor/public/interfaces",
+      "//components/services/pdf_compositor",
+      "//components/services/pdf_compositor/public/cpp",
+      "//components/services/pdf_compositor/public/mojom",
     ]
+
     deps += [
       "//components/printing/common",
-      "//components/services/pdf_compositor",
       "//printing",
     ]
 
@@ -178,4 +189,30 @@ static_library("chrome") {
       ]
     }
   }
+
+  if (enable_picture_in_picture) {
+    sources += [
+      "//chrome/browser/picture_in_picture/picture_in_picture_window_manager.cc",
+      "//chrome/browser/picture_in_picture/picture_in_picture_window_manager.h",
+      "//chrome/browser/ui/views/overlay/back_to_tab_image_button.cc",
+      "//chrome/browser/ui/views/overlay/back_to_tab_image_button.h",
+      "//chrome/browser/ui/views/overlay/close_image_button.cc",
+      "//chrome/browser/ui/views/overlay/close_image_button.h",
+      "//chrome/browser/ui/views/overlay/overlay_window_views.cc",
+      "//chrome/browser/ui/views/overlay/overlay_window_views.h",
+      "//chrome/browser/ui/views/overlay/playback_image_button.cc",
+      "//chrome/browser/ui/views/overlay/playback_image_button.h",
+      "//chrome/browser/ui/views/overlay/resize_handle_button.cc",
+      "//chrome/browser/ui/views/overlay/resize_handle_button.h",
+      "//chrome/browser/ui/views/overlay/skip_ad_label_button.cc",
+      "//chrome/browser/ui/views/overlay/skip_ad_label_button.h",
+      "//chrome/browser/ui/views/overlay/track_image_button.cc",
+      "//chrome/browser/ui/views/overlay/track_image_button.h",
+    ]
+
+    deps += [
+      "//chrome/app/vector_icons",
+      "//components/vector_icons:vector_icons",
+    ]
+  }
 }

components/pepper_flash/BUILD.gn

@@ -54,6 +54,7 @@ component("pepper_flash") {
       "//chrome/browser/renderer_host/pepper/monitor_finder_mac.h",
       "//chrome/browser/renderer_host/pepper/monitor_finder_mac.mm",
     ]
+    libs = [ "CoreGraphics.framework" ]
   }
   if (is_linux) {
     deps += [ "//components/services/font/public/cpp" ]

default_app/index.html

@@ -2,10 +2,9 @@
 
 <head>
   <title>Electron</title>
-  <meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'self'; style-src 'self'; img-src 'self'; connect-src 'self'" />
+  <meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'sha256-6PH54BfkNq/EMMhUY7nhHf3c+AxloOwfy7hWyT01CM8='; style-src 'self'; img-src 'self'; connect-src 'self'" />
   <link href="./styles.css" type="text/css" rel="stylesheet" />
   <link href="./octicon/build.css" type="text/css" rel="stylesheet" />
-  <script defer src="./index.js"></script>
 </head>
 
 <body>
@@ -84,6 +83,9 @@
       </div>
     </div>
   </nav>
+  <script>
+    window.electronDefaultApp.initialize()
+  </script>
 </body>
 
 </html>

default_app/index.ts

@@ -1,30 +0,0 @@
-async function getOcticonSvg (name: string) {
-  try {
-    const response = await fetch(`octicon/${name}.svg`)
-    const div = document.createElement('div')
-    div.innerHTML = await response.text()
-    return div
-  } catch {
-    return null
-  }
-}
-
-async function loadSVG (element: HTMLSpanElement) {
-  for (const cssClass of element.classList) {
-    if (cssClass.startsWith('octicon-')) {
-      const icon = await getOcticonSvg(cssClass.substr(8))
-      if (icon) {
-        for (const elemClass of element.classList) {
-          icon.classList.add(elemClass)
-        }
-        element.before(icon)
-        element.remove()
-        break
-      }
-    }
-  }
-}
-
-for (const element of document.querySelectorAll<HTMLSpanElement>('.octicon')) {
-  loadSVG(element)
-}

default_app/preload.ts

@@ -1,4 +1,31 @@
-import { ipcRenderer } from 'electron'
+import { ipcRenderer, contextBridge } from 'electron'
+
+async function getOcticonSvg (name: string) {
+  try {
+    const response = await fetch(`octicon/${name}.svg`)
+    const div = document.createElement('div')
+    div.innerHTML = await response.text()
+    return div
+  } catch {
+    return null
+  }
+}
+
+async function loadSVG (element: HTMLSpanElement) {
+  for (const cssClass of element.classList) {
+    if (cssClass.startsWith('octicon-')) {
+      const icon = await getOcticonSvg(cssClass.substr(8))
+      if (icon) {
+        for (const elemClass of element.classList) {
+          icon.classList.add(elemClass)
+        }
+        element.before(icon)
+        element.remove()
+        break
+      }
+    }
+  }
+}
 
 async function initialize () {
   const electronPath = await ipcRenderer.invoke('bootstrap')
@@ -15,6 +42,12 @@ async function initialize () {
   replaceText('.node-version', `Node v${process.versions.node}`)
   replaceText('.v8-version', `v8 v${process.versions.v8}`)
   replaceText('.command-example', `${electronPath} path-to-app`)
+
+  for (const element of document.querySelectorAll<HTMLSpanElement>('.octicon')) {
+    loadSVG(element)
+  }
 }
 
-document.addEventListener('DOMContentLoaded', initialize)
+contextBridge.exposeInMainWorld('electronDefaultApp', {
+  initialize
+})

docs/README.md

@@ -39,6 +39,7 @@ an issue:
   * [Using Electron's APIs](tutorial/application-architecture.md#using-electron-apis)
   * [Using Node.js APIs](tutorial/application-architecture.md#using-nodejs-apis)
   * [Using Native Node.js Modules](tutorial/using-native-node-modules.md)
+  * [Performance Strategies](tutorial/performance.md)
 * Adding Features to Your App
   * [Notifications](tutorial/notifications.md)
   * [Recent Documents](tutorial/recent-documents.md)

docs/api/app.md

@@ -32,7 +32,7 @@ In most cases, you should do everything in the `ready` event handler.
 
 Returns:
 
-* `launchInfo` Object _macOS_
+* `launchInfo` unknown _macOS_
 
 Emitted when Electron has finished initializing. On macOS, `launchInfo` holds
 the `userInfo` of the `NSUserNotification` that was used to open the application,
@@ -146,7 +146,7 @@ Returns:
 * `event` Event
 * `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
-* `userInfo` Object - Contains app-specific state stored by the activity on
+* `userInfo` unknown - Contains app-specific state stored by the activity on
   another device.
 
 Emitted during [Handoff][handoff] when an activity from a different device wants
@@ -189,7 +189,7 @@ Returns:
 * `event` Event
 * `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
-* `userInfo` Object - Contains app-specific state stored by the activity.
+* `userInfo` unknown - Contains app-specific state stored by the activity.
 
 Emitted during [Handoff][handoff] after an activity from this device was successfully
 resumed on another one.
@@ -201,7 +201,7 @@ Returns:
 * `event` Event
 * `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
-* `userInfo` Object - Contains app-specific state stored by the activity.
+* `userInfo` unknown - Contains app-specific state stored by the activity.
 
 Emitted when [Handoff][handoff] is about to be resumed on another device. If you need to update the state to be transferred, you should call `event.preventDefault()` immediately, construct a new `userInfo` dictionary and call `app.updateCurrentActiviy()` in a timely manner. Otherwise, the operation will fail and `continue-activity-error` will be called.
 
@@ -314,10 +314,8 @@ Returns:
 
 * `event` Event
 * `webContents` [WebContents](web-contents.md)
-* `request` Object
-  * `method` String
+* `authenticationResponseDetails` Object
   * `url` URL
-  * `referrer` URL
 * `authInfo` Object
   * `isProxy` Boolean
   * `scheme` String
@@ -337,7 +335,7 @@ should prevent the default behavior with `event.preventDefault()` and call
 ```javascript
 const { app } = require('electron')
 
-app.on('login', (event, webContents, request, authInfo, callback) => {
+app.on('login', (event, webContents, details, authInfo, callback) => {
   event.preventDefault()
   callback('username', 'secret')
 })
@@ -582,7 +580,7 @@ them.
 
 Sets or creates a directory your app's logs which can then be manipulated with `app.getPath()` or `app.setPath(pathName, newPath)`.
 
-On _macOS_, this directory will be set by default to `/Library/Logs/YourAppName`, and on _Linux_ and _Windows_ it will be placed inside your `userData` directory.
+Calling `app.setAppLogsPath()` without a `path` parameter will result in this directory being set to `~/Library/Logs/YourAppName` on _macOS_, and inside the `userData` directory on _Linux_ and _Windows_.
 
 ### `app.getAppPath()`
 
@@ -590,31 +588,31 @@ Returns `String` - The current application directory.
 
 ### `app.getPath(name)`
 
-* `name` String
+* `name` String - You can request the following paths by the name:
+  * `home` User's home directory.
+  * `appData` Per-user application data directory, which by default points to:
+    * `%APPDATA%` on Windows
+    * `$XDG_CONFIG_HOME` or `~/.config` on Linux
+    * `~/Library/Application Support` on macOS
+  * `userData` The directory for storing your app's configuration files, which by
+    default it is the `appData` directory appended with your app's name.
+  * `cache`
+  * `temp` Temporary directory.
+  * `exe` The current executable file.
+  * `module` The `libchromiumcontent` library.
+  * `desktop` The current user's Desktop directory.
+  * `documents` Directory for a user's "My Documents".
+  * `downloads` Directory for a user's downloads.
+  * `music` Directory for a user's music.
+  * `pictures` Directory for a user's pictures.
+  * `videos` Directory for a user's videos.
+  * `logs` Directory for your app's log folder.
+  * `pepperFlashSystemPlugin` Full path to the system version of the Pepper Flash plugin.
 
 Returns `String` - A path to a special directory or file associated with `name`. On
 failure, an `Error` is thrown.
 
-You can request the following paths by the name:
-
-* `home` User's home directory.
-* `appData` Per-user application data directory, which by default points to:
-  * `%APPDATA%` on Windows
-  * `$XDG_CONFIG_HOME` or `~/.config` on Linux
-  * `~/Library/Application Support` on macOS
-* `userData` The directory for storing your app's configuration files, which by
-  default it is the `appData` directory appended with your app's name.
-* `temp` Temporary directory.
-* `exe` The current executable file.
-* `module` The `libchromiumcontent` library.
-* `desktop` The current user's Desktop directory.
-* `documents` Directory for a user's "My Documents".
-* `downloads` Directory for a user's downloads.
-* `music` Directory for a user's music.
-* `pictures` Directory for a user's pictures.
-* `videos` Directory for a user's videos.
-* `logs` Directory for your app's log folder.
-* `pepperFlashSystemPlugin` Full path to the system version of the Pepper Flash plugin.
+If `app.getPath('logs')` is called without called `app.setAppLogsPath()` being called first, a default log directory will be created equivalent to calling `app.setAppLogsPath()` without a `path` parameter.
 
 ### `app.getFileIcon(path[, options])`
 
@@ -951,7 +949,7 @@ allow multiple instances of the application to once again run side by side.
 
 * `type` String - Uniquely identifies the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
-* `userInfo` Object - App-specific state to store for use by another device.
+* `userInfo` any - App-specific state to store for use by another device.
 * `webpageURL` String (optional) - The webpage to load in a browser if no suitable app is
   installed on the resuming device. The scheme must be `http` or `https`.
 
@@ -974,7 +972,7 @@ Marks the current [Handoff][handoff] user activity as inactive without invalidat
 
 * `type` String - Uniquely identifies the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
-* `userInfo` Object - App-specific state to store for use by another device.
+* `userInfo` any - App-specific state to store for use by another device.
 
 Updates the current activity if its type matches `type`, merging the entries from
 `userInfo` into its current `userInfo` dictionary.
@@ -985,7 +983,7 @@ Updates the current activity if its type matches `type`, merging the entries fro
 
 Changes the [Application User Model ID][app-user-model-id] to `id`.
 
-### `app.importCertificate(options, callback)` _LINUX_
+### `app.importCertificate(options, callback)` _Linux_
 
 * `options` Object
   * `certificate` String - Path for the pkcs12 file.
@@ -1023,7 +1021,7 @@ Returns [`GPUFeatureStatus`](structures/gpu-feature-status.md) - The Graphics Fe
 
 ### `app.getGPUInfo(infoType)`
 
-* `infoType` String - Values can be either `basic` for basic info or `complete` for complete info.
+* `infoType` String - Can be `basic` or `complete`.
 
 Returns `Promise<unknown>`
 
@@ -1178,7 +1176,7 @@ Show the app's about panel options. These options can be overridden with `app.se
   * `applicationName` String (optional) - The app's name.
   * `applicationVersion` String (optional) - The app's version.
   * `copyright` String (optional) - Copyright information.
-  * `version` String (optional) - The app's build version number.
+  * `version` String (optional) _macOS_ - The app's build version number.
   * `credits` String (optional) _macOS_ - Credit information.
   * `authors` String[] (optional) _Linux_ - List of app authors.
   * `website` String (optional) _Linux_ - The app's website.
@@ -1195,7 +1193,7 @@ Returns `Boolean` - whether or not the current OS version allows for native emoj
 
 Show the platform's native emoji picker.
 
-### `app.startAccessingSecurityScopedResource(bookmarkData)` _macOS (mas)_
+### `app.startAccessingSecurityScopedResource(bookmarkData)` _mas_
 
 * `bookmarkData` String - The base64 encoded security scoped bookmark data returned by the `dialog.showOpenDialog` or `dialog.showSaveDialog` methods.
 
@@ -1223,7 +1221,11 @@ This method can only be called before app is ready.
 Returns `Boolean` - Whether the application is currently running from the
 systems Application folder. Use in combination with `app.moveToApplicationsFolder()`
 
-### `app.moveToApplicationsFolder()` _macOS_
+### `app.moveToApplicationsFolder([options])` _macOS_
+
+* `options` Object (optional)
+  * `conflictHandler` Function<Boolean> (optional) - A handler for potential conflict in move failure.
+    * `conflictType` String - The type of move conflict encountered by the handler; can be `exists` or `existsAndRunning`, where `exists` means that an app of the same name is present in the Applications directory and `existsAndRunning` means both that it exists and that it's presently running.
 
 Returns `Boolean` - Whether the move was successful. Please note that if
 the move is successful, your application will quit and relaunch.
@@ -1236,7 +1238,28 @@ the user to confirm the operation, you may do so using the
 move to fail. For instance if the user cancels the authorization dialog, this
 method returns false. If we fail to perform the copy, then this method will
 throw an error. The message in the error should be informative and tell
-you exactly what went wrong
+you exactly what went wrong.
+
+By default, if an app of the same name as the one being moved exists in the Applications directory and is _not_ running, the existing app will be trashed and the active app moved into its place. If it _is_ running, the pre-existing running app will assume focus and the the previously active app will quit itself. This behavior can be changed by providing the optional conflict handler, where the boolean returned by the handler determines whether or not the move conflict is resolved with default behavior.  i.e. returning `false` will ensure no further action is taken, returning `true` will result in the default behavior and the method continuing.
+
+For example:
+
+```js
+app.moveToApplicationsFolder({
+  conflictHandler: (conflictType) => {
+    if (conflictType === 'exists') {
+      return dialog.showMessageBoxSync({
+        type: 'question',
+        buttons: ['Halt Move', 'Continue Move'],
+        defaultId: 0,
+        message: 'An app of this name already exists'
+      }) === 1
+    }
+  }
+})
+```
+
+Would mean that if an app already exists in the user directory, if the user chooses to 'Continue Move' then the function would continue with its default behavior and the existing app will be trashed and the active app moved into its place.
 
 ## Properties
 
@@ -1264,17 +1287,17 @@ On macOS, setting this with any nonzero integer shows on the dock icon. On Linux
 **Note:** Unity launcher requires the existence of a `.desktop` file to work,
 for more information please read [Desktop Environment Integration][unity-requirement].
 
-### `app.commandLine`
+### `app.commandLine` _Readonly_
 
 A [`CommandLine`](./command-line.md) object that allows you to read and manipulate the
 command line arguments that Chromium uses.
 
-### `app.dock` _macOS_
+### `app.dock` _macOS_ _Readonly_
 
 A [`Dock`](./dock.md) object that allows you to perform actions on your app icon in the user's
 dock on macOS.
 
-### `app.isPackaged`
+### `app.isPackaged` _Readonly_
 
 A `Boolean` property that returns  `true` if the app is packaged, `false` otherwise. For many apps, this property can be used to distinguish development and production environments.
 

docs/api/auto-updater.md

@@ -6,6 +6,8 @@ Process: [Main](../glossary.md#main-process)
 
 **See also: [A detailed guide about how to implement updates in your application](../tutorial/updates.md).**
 
+`autoUpdater` is an [EventEmitter][event-emitter].
+
 ## Platform Notices
 
 Currently, only macOS and Windows are supported. There is no built-in support
@@ -101,7 +103,7 @@ The `autoUpdater` object has the following methods:
 
 * `options` Object
   * `url` String
-  * `headers` Object (optional) _macOS_ - HTTP request headers.
+  * `headers` Record<String, String> (optional) _macOS_ - HTTP request headers.
   * `serverType` String (optional) _macOS_ - Either `json` or `default`, see the [Squirrel.Mac][squirrel-mac]
     README for more information.
 
@@ -136,3 +138,4 @@ application starts.
 [installer-lib]: https://github.com/electron/windows-installer
 [electron-forge-lib]: https://github.com/electron-userland/electron-forge
 [app-user-model-id]: https://msdn.microsoft.com/en-us/library/windows/desktop/dd378459(v=vs.85).aspx
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/breaking-changes.md

@@ -64,6 +64,44 @@ webFrame.setIsolatedWorldInfo(
   })
 ```
 
+### Removal of deprecated `marked` property on getBlinkMemoryInfo
+
+This property was removed in Chromium 77, and as such is no longer available.
+
+### `webkitdirectory` attribute for `<input type="file"/>`
+
+The `webkitdirectory` property on HTML file inputs allows them to select folders.
+Previous versions of Electron had an incorrect implementation where the `event.target.files`
+of the input returned a `FileList` that returned one `File` corresponding to the selected folder.
+
+As of Electron 7, that `FileList` is now list of all files contained within
+the folder, similarly to Chrome, Firefox, and Edge
+([link to MDN docs](https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/webkitdirectory)).
+
+As an illustration, take a folder with this structure:
+```console
+folder
+├── file1
+├── file2
+└── file3
+```
+
+In Electron <=6, this would return a `FileList` with a `File` object for:
+```console
+path/to/folder
+```
+
+In Electron 7, this now returns a `FileList` with a `File` object for:
+```console
+/path/to/folder/file3
+/path/to/folder/file2
+/path/to/folder/file1
+```
+
+Note that `webkitdirectory` no longer exposes the path to the selected folder.
+If you require the path to the selected folder rather than the folder contents,
+see the `dialog.showOpenDialog` API ([link](https://github.com/electron/electron/blob/master/docs/api/dialog.md#dialogshowopendialogbrowserwindow-options)).
+
 ## Planned Breaking API Changes (6.0)
 
 ### `win.setMenu(null)`
@@ -148,6 +186,17 @@ app.enableMixedSandbox()
 
 Mixed-sandbox mode is now enabled by default.
 
+### `Tray`
+
+Under macOS Catalina our former Tray implementation breaks.
+Apple's native substitute doesn't support changing the highlighting behavior.
+
+```js
+// Deprecated
+tray.setHighlightMode(mode)
+// API will be removed in v7.0 without replacement.
+```
+
 ## Planned Breaking API Changes (5.0)
 
 ### `new BrowserWindow({ webPreferences })`
@@ -182,7 +231,7 @@ A new API, `protocol.registerSchemesAsPrivileged` has been added and should be u
 ### webFrame Isolated World APIs
 
 ```js
-// Deprecated
+// Removed in Electron 7.0
 webFrame.setIsolatedWorldContentSecurityPolicy(worldId, csp)
 webFrame.setIsolatedWorldHumanReadableName(worldId, name)
 webFrame.setIsolatedWorldSecurityOrigin(worldId, securityOrigin)

docs/api/browser-view.md

@@ -79,13 +79,13 @@ Returns `Boolean` - Whether the view is destroyed.
 #### `view.setAutoResize(options)` _Experimental_
 
 * `options` Object
-  * `width` Boolean - If `true`, the view's width will grow and shrink together
+  * `width` Boolean (optional) - If `true`, the view's width will grow and shrink together
     with the window. `false` by default.
-  * `height` Boolean - If `true`, the view's height will grow and shrink
+  * `height` Boolean (optional) - If `true`, the view's height will grow and shrink
     together with the window. `false` by default.
-  * `horizontal` Boolean - If `true`, the view's x position and width will grow
+  * `horizontal` Boolean (optional) - If `true`, the view's x position and width will grow
     and shrink proportionally with the window. `false` by default.
-  * `vertical` Boolean - If `true`, the view's y position and height will grow
+  * `vertical` Boolean (optional) - If `true`, the view's y position and height will grow
     and shrink proportionally with the window. `false` by default.
 
 #### `view.setBounds(bounds)` _Experimental_
@@ -94,6 +94,12 @@ Returns `Boolean` - Whether the view is destroyed.
 
 Resizes and moves the view to the supplied bounds relative to the window.
 
+#### `view.getBounds()` _Experimental_
+
+Returns [`Rectangle`](structures/rectangle.md)
+
+The `bounds` of this BrowserView instance as `Object`.
+
 #### `view.setBackgroundColor(color)` _Experimental_
 
 * `color` String - Color in `#aarrggbb` or `#argb` form. The alpha channel is

docs/api/browser-window-proxy.md

@@ -35,7 +35,7 @@ Invokes the print dialog on the child window.
 
 #### `win.postMessage(message, targetOrigin)`
 
-* `message` String
+* `message` any
 * `targetOrigin` String
 
 Sends a message to the child window with the specified origin or `*` for no

docs/api/browser-window.md

@@ -33,7 +33,7 @@ you can use the [Frameless Window](frameless-window.md) API.
 When loading a page in the window directly, users may see the page load incrementally, which is not a good experience for a native app. To make the window display
 without visual flash, there are two solutions for different situations.
 
-### Using `ready-to-show` event
+## Using `ready-to-show` event
 
 While loading the page, the `ready-to-show` event will be emitted when the renderer
 process has rendered the page for the first time if the window has not been shown yet. Showing
@@ -51,7 +51,10 @@ This event is usually emitted after the `did-finish-load` event, but for
 pages with many remote resources, it may be emitted before the `did-finish-load`
 event.
 
-### Setting `backgroundColor`
+Please note that using this event implies that the renderer will be considered "visible" and
+paint even though `show` is false.  This event will never fire if you use `paintWhenInitiallyHidden: false`
+
+## Setting `backgroundColor`
 
 For a complex app, the `ready-to-show` event could be emitted too late, making
 the app feel slow. In this case, it is recommended to show the window
@@ -82,7 +85,7 @@ top.show()
 
 The `child` window will always show on top of the `top` window.
 
-### Modal windows
+## Modal windows
 
 A modal window is a child window that disables parent window, to create a modal
 window, you have to set both `parent` and `modal` options:
@@ -97,7 +100,7 @@ child.once('ready-to-show', () => {
 })
 ```
 
-### Page visibility
+## Page visibility
 
 The [Page Visibility API][page-visibility-api] works as follows:
 
@@ -116,7 +119,7 @@ The [Page Visibility API][page-visibility-api] works as follows:
 It is recommended that you pause expensive operations when the visibility
 state is `hidden` in order to minimize power consumption.
 
-### Platform notices
+## Platform notices
 
 * On macOS modal windows will be displayed as sheets attached to the parent window.
 * On macOS the child windows will keep the relative position to parent window
@@ -131,8 +134,7 @@ state is `hidden` in order to minimize power consumption.
 
 Process: [Main](../glossary.md#main-process)
 
-`BrowserWindow` is an
-[EventEmitter](https://nodejs.org/api/events.html#events_class_events_eventemitter).
+`BrowserWindow` is an [EventEmitter][event-emitter].
 
 It creates a new `BrowserWindow` with native properties as set by the `options`.
 
@@ -185,6 +187,7 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     leave it undefined so the executable's icon will be used.
   * `show` Boolean (optional) - Whether window should be shown when created. Default is
     `true`.
+  * `paintWhenInitiallyHidden` Boolean (optional) - Whether the renderer should be active when `show` is `false` and it has just been created.  In order for `document.visibilityState` to work correctly on first load with `show: false` you should set this to `false`.  Setting this to `false` will cause the `ready-to-show` event to not fire.  Default is `true`.
   * `frame` Boolean (optional) - Specify `false` to create a
     [Frameless Window](frameless-window.md). Default is `true`.
   * `parent` BrowserWindow (optional) - Specify parent window. Default is `null`.
@@ -198,7 +201,8 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
   * `autoHideMenuBar` Boolean (optional) - Auto hide the menu bar unless the `Alt`
     key is pressed. Default is `false`.
   * `enableLargerThanScreen` Boolean (optional) - Enable the window to be resized larger
-    than screen. Default is `false`.
+    than screen. Only relevant for macOS, as other OSes allow
+    larger-than-screen windows by default. Default is `false`.
   * `backgroundColor` String (optional) - Window's background color as a hexadecimal value,
     like `#66CD00` or `#FFF` or `#80FFFFFF` (alpha in #AARRGGBB format is supported if
     `transparent` is set to `true`). Default is `#FFF` (white).
@@ -208,8 +212,8 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     transparent) and 1.0 (fully opaque). This is only implemented on Windows and macOS.
   * `darkTheme` Boolean (optional) - Forces using dark theme for the window, only works on
     some GTK+3 desktop environments. Default is `false`.
-  * `transparent` Boolean (optional) - Makes the window [transparent](frameless-window.md).
-    Default is `false`.
+  * `transparent` Boolean (optional) - Makes the window [transparent](frameless-window.md#transparent-window).
+    Default is `false`. On Windows, does not work unless the window is frameless.
   * `type` String (optional) - The type of window, default is normal window. See more about
     this below.
   * `titleBarStyle` String (optional) - The style of window title bar.
@@ -234,9 +238,7 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     window shadow and window animations. Default is `true`.
   * `vibrancy` String (optional) - Add a type of vibrancy effect to the window, only on
     macOS. Can be `appearance-based`, `light`, `dark`, `titlebar`, `selection`,
-    `menu`, `popover`, `sidebar`, `medium-light` or `ultra-dark`.  Please note that
-    using `frame: false` in combination with a vibrancy value requires that you use a
-    non-default `titleBarStyle` as well.
+    `menu`, `popover`, `sidebar`, `medium-light`, `ultra-dark`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`.  Please note that using `frame: false` in combination with a vibrancy value requires that you use a non-default `titleBarStyle` as well. Also note that `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` have been deprecated and will be removed in an upcoming version of macOS.
   * `zoomToPageWidth` Boolean (optional) - Controls the behavior on macOS when
     option-clicking the green stoplight button on the toolbar or by clicking the
     Window > Zoom menu item. If `true`, the window will grow to the preferred
@@ -487,6 +489,9 @@ Emitted when the window is hidden.
 Emitted when the web page has been rendered (while not being shown) and window can be displayed without
 a visual flash.
 
+Please note that using this event implies that the renderer will be considered "visible" and
+paint even though `show` is false.  This event will never fire if you use `paintWhenInitiallyHidden: false`
+
 #### Event: 'maximize'
 
 Emitted when window is maximized.
@@ -555,7 +560,7 @@ Emitted when the window enters a full-screen state triggered by HTML API.
 
 Emitted when the window leaves a full-screen state triggered by HTML API.
 
-#### Event: 'always-on-top-changed' _macOS_
+#### Event: 'always-on-top-changed'
 
 Returns:
 
@@ -616,6 +621,19 @@ Returns:
 
 Emitted on 3-finger swipe. Possible directions are `up`, `right`, `down`, `left`.
 
+#### Event: 'rotate-gesture' _macOS_
+
+Returns:
+
+* `event` Event
+* `rotation` Float
+
+Emitted on trackpad rotation gesture. Continually emitted until rotation gesture is
+ended. The `rotation` value on each emission is the angle in degrees rotated since
+the last emission. The last emitted event upon a rotation gesture will always be of
+value `0`. Counter-clockwise rotation values are positive, while clockwise ones are
+negative.
+
 #### Event: 'sheet-begin' _macOS_
 
 Emitted when the window opens a sheet.
@@ -680,7 +698,7 @@ is emitted.
 
 #### `BrowserWindow.getExtensions()`
 
-Returns `Object` - The keys are the extension names and each value is
+Returns `Record<String, ExtensionInfo>` - The keys are the extension names and each value is
 an Object containing `name` and `version` properties.
 
 **Note:** This API cannot be called before the `ready` event of the `app` module
@@ -713,7 +731,7 @@ is emitted.
 
 #### `BrowserWindow.getDevToolsExtensions()`
 
-Returns `Object` - The keys are the extension names and each value is
+Returns `Record<string, ExtensionInfo>` - The keys are the extension names and each value is
 an Object containing `name` and `version` properties.
 
 To check if a DevTools extension is installed you can run the following:
@@ -739,7 +757,7 @@ let win = new BrowserWindow({ width: 800, height: 600 })
 win.loadURL('https://github.com')
 ```
 
-#### `win.webContents`
+#### `win.webContents` _Readonly_
 
 A `WebContents` object this window owns. All web page related events and
 operations will be done via it.
@@ -747,9 +765,68 @@ operations will be done via it.
 See the [`webContents` documentation](web-contents.md) for its methods and
 events.
 
-#### `win.id`
+#### `win.id` _Readonly_
 
-A `Integer` representing the unique ID of the window.
+A `Integer` property representing the unique ID of the window.
+
+#### `win.autoHideMenuBar`
+
+A `Boolean` property that determines whether the window menu bar should hide itself automatically. Once set, the menu bar will only show when users press the single `Alt` key.
+
+If the menu bar is already visible, setting this property to `true` won't
+hide it immediately.
+
+#### `win.minimizable`
+
+A `Boolean` property that determines whether the window can be manually minimized by user.
+
+On Linux the setter is a no-op, although the getter returns `true`.
+
+#### `win.maximizable`
+
+A `Boolean` property that determines whether the window can be manually maximized by user.
+
+On Linux the setter is a no-op, although the getter returns `true`.
+
+#### `win.fullScreenable`
+
+A `Boolean` property that determines whether the maximize/zoom window button toggles fullscreen mode or
+maximizes the window.
+
+#### `win.resizable`
+
+A `Boolean` property that determines whether the window can be manually resized by user.
+
+#### `win.closable`
+
+A `Boolean` property that determines whether the window can be manually closed by user.
+
+On Linux the setter is a no-op, although the getter returns `true`.
+
+#### `win.movable`
+
+A `Boolean` property that determines Whether the window can be moved by user.
+
+On Linux the setter is a no-op, although the getter returns `true`.
+
+#### `win.excludedFromShownWindowsMenu` _macOS_
+
+A `Boolean` property that determines whether the window is excluded from the application’s Windows menu. `false` by default.
+
+```js
+const win = new BrowserWindow({ height: 600, width: 600 })
+
+const template = [
+  {
+    role: 'windowmenu'
+  }
+]
+
+win.excludedFromShownWindowsMenu = true
+
+const menu = Menu.buildFromTemplate(template)
+Menu.setApplicationMenu(menu)
+```
 
 ### Instance Methods
 
@@ -908,7 +985,7 @@ Closes the currently open [Quick Look][quick-look] panel.
 
 #### `win.setBounds(bounds[, animate])`
 
-* `bounds` [Rectangle](structures/rectangle.md)
+* `bounds` Partial<[Rectangle](structures/rectangle.md)>
 * `animate` Boolean (optional) _macOS_
 
 Resizes and moves the window to the supplied bounds. Any properties that are not supplied will default to their current values.
@@ -929,7 +1006,7 @@ console.log(win.getBounds())
 
 #### `win.getBounds()`
 
-Returns [`Rectangle`](structures/rectangle.md)
+Returns [`Rectangle`](structures/rectangle.md) - The `bounds` of the window as `Object`.
 
 #### `win.setContentBounds(bounds[, animate])`
 
@@ -941,7 +1018,7 @@ the supplied bounds.
 
 #### `win.getContentBounds()`
 
-Returns [`Rectangle`](structures/rectangle.md)
+Returns [`Rectangle`](structures/rectangle.md) - The `bounds` of the window's client area as `Object`.
 
 #### `win.getNormalBounds()`
 
@@ -955,6 +1032,10 @@ Returns [`Rectangle`](structures/rectangle.md) - Contains the window bounds of t
 
 Disable or enable the window.
 
+#### `win.isEnabled()`
+
+Returns Boolean - whether the window is enabled.
+
 #### `win.setSize(width, height[, animate])`
 
 * `width` Integer
@@ -1100,10 +1181,14 @@ On Linux always returns `true`.
 #### `win.setAlwaysOnTop(flag[, level][, relativeLevel])`
 
 * `flag` Boolean
-* `level` String (optional) _macOS_ - Values include `normal`, `floating`,
-  `torn-off-menu`, `modal-panel`, `main-menu`, `status`, `pop-up-menu`,
-  `screen-saver`, and ~~`dock`~~ (Deprecated). The default is `floating`. See the
-  [macOS docs][window-levels] for more details.
+* `level` String (optional) _macOS_ _Windows_ - Values include `normal`,
+  `floating`, `torn-off-menu`, `modal-panel`, `main-menu`, `status`,
+  `pop-up-menu`, `screen-saver`, and ~~`dock`~~ (Deprecated). The default is
+  `floating` when `flag` is true. The `level` is reset to `normal` when the
+  flag is false. Note that from `floating` to `status` included, the window is
+  placed below the Dock on macOS and below the taskbar on Windows. From
+  `pop-up-menu` to a higher it is shown above the Dock on macOS and above the
+  taskbar on Windows. See the [macOS docs][window-levels] for more details.
 * `relativeLevel` Integer (optional) _macOS_ - The number of layers higher to set
   this window relative to the given `level`. The default is `0`. Note that Apple
   discourages setting levels higher than 1 above `screen-saver`.
@@ -1303,7 +1388,7 @@ win.loadURL('http://localhost:8000/post', {
 
 * `filePath` String
 * `options` Object (optional)
-  * `query` Object (optional) - Passed to `url.format()`.
+  * `query` Record<String, String> (optional) - Passed to `url.format()`.
   * `search` String (optional) - Passed to `url.format()`.
   * `hash` String (optional) - Passed to `url.format()`.
 
@@ -1359,29 +1444,27 @@ screen readers
 Sets a 16 x 16 pixel overlay onto the current taskbar icon, usually used to
 convey some sort of application status or to passively notify the user.
 
-#### `win.setHasShadow(hasShadow)` _macOS_
+#### `win.setHasShadow(hasShadow)`
 
 * `hasShadow` Boolean
 
-Sets whether the window should have a shadow. On Windows and Linux does
-nothing.
+Sets whether the window should have a shadow.
 
-#### `win.hasShadow()` _macOS_
+#### `win.hasShadow()`
 
 Returns `Boolean` - Whether the window has a shadow.
 
-On Windows and Linux always returns
-`true`.
-
 #### `win.setOpacity(opacity)` _Windows_ _macOS_
 
 * `opacity` Number - between 0.0 (fully transparent) and 1.0 (fully opaque)
 
-Sets the opacity of the window. On Linux does nothing.
+Sets the opacity of the window. On Linux, does nothing. Out of bound number
+values are clamped to the [0, 1] range.
 
-#### `win.getOpacity()` _Windows_ _macOS_
+#### `win.getOpacity()`
 
-Returns `Number` - between 0.0 (fully transparent) and 1.0 (fully opaque)
+Returns `Number` - between 0.0 (fully transparent) and 1.0 (fully opaque). On
+Linux, always returns 1.
 
 #### `win.setShape(rects)` _Windows_ _Linux_ _Experimental_
 
@@ -1470,7 +1553,7 @@ Same as `webContents.showDefinitionForSelection()`.
 
 #### `win.setIcon(icon)` _Windows_ _Linux_
 
-* `icon` [NativeImage](native-image.md)
+* `icon` [NativeImage](native-image.md) | String
 
 Changes window icon.
 
@@ -1552,15 +1635,17 @@ Prevents the window contents from being captured by other apps.
 On macOS it sets the NSWindow's sharingType to NSWindowSharingNone.
 On Windows it calls SetWindowDisplayAffinity with `WDA_MONITOR`.
 
-#### `win.setFocusable(focusable)` _Windows_
+#### `win.setFocusable(focusable)` _macOS_ _Windows_
 
 * `focusable` Boolean
 
 Changes whether the window can be focused.
 
+On macOS it does not remove the focus from the window.
+
 #### `win.setParentWindow(parent)`
 
-* `parent` BrowserWindow
+* `parent` BrowserWindow | null
 
 Sets `parent` as current window's parent window, passing `null` will turn
 current window into a top-level window.
@@ -1612,16 +1697,19 @@ Adds a window as a tab on this window, after the tab for the window instance.
 
 #### `win.setVibrancy(type)` _macOS_
 
-* `type` String - Can be `appearance-based`, `light`, `dark`, `titlebar`,
-  `selection`, `menu`, `popover`, `sidebar`, `medium-light` or `ultra-dark`. See
+* `type` String | null - Can be `appearance-based`, `light`, `dark`, `titlebar`,
+  `selection`, `menu`, `popover`, `sidebar`, `medium-light`, `ultra-dark`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`. See
   the [macOS documentation][vibrancy-docs] for more details.
 
 Adds a vibrancy effect to the browser window. Passing `null` or an empty string
 will remove the vibrancy effect on the window.
 
+Note that `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` have been
+deprecated and will be removed in an upcoming version of macOS.
+
 #### `win.setTouchBar(touchBar)` _macOS_ _Experimental_
 
-* `touchBar` TouchBar
+* `touchBar` TouchBar | null
 
 Sets the touchBar layout for the current window. Specifying `null` or
 `undefined` clears the touch bar. This method only has an effect if the
@@ -1632,7 +1720,7 @@ removed in future Electron releases.
 
 #### `win.setBrowserView(browserView)` _Experimental_
 
-* `browserView` [BrowserView](browser-view.md) - Attach browserView to win.
+* `browserView` [BrowserView](browser-view.md) | null - Attach browserView to win.
 If there is some other browserViews was attached they will be removed from
 this window.
 
@@ -1653,8 +1741,8 @@ Replacement API for setBrowserView supporting work with multi browser views.
 
 #### `win.getBrowserViews()` _Experimental_
 
-Returns array of `BrowserView` what was an attached with addBrowserView
-or setBrowserView.
+Returns `BrowserView[]` - an array of all BrowserViews that have been attached
+with `addBrowserView` or `setBrowserView`.
 
 **Note:** The BrowserView API is currently experimental and may change or be
 removed in future Electron releases.
@@ -1665,64 +1753,4 @@ removed in future Electron releases.
 [vibrancy-docs]: https://developer.apple.com/documentation/appkit/nsvisualeffectview?preferredLanguage=objc
 [window-levels]: https://developer.apple.com/documentation/appkit/nswindow/level
 [chrome-content-scripts]: https://developer.chrome.com/extensions/content_scripts#execution-environment
-
-### Properties
-
-#### `win.autoHideMenuBar`
-
-A `Boolean` property that determines whether the window menu bar should hide itself automatically. Once set, the menu bar will only show when users press the single `Alt` key.
-
-If the menu bar is already visible, setting this property to `true` won't
-hide it immediately.
-
-#### `win.minimizable`
-
-A `Boolean` property that determines whether the window can be manually minimized by user.
-
-On Linux the setter is a no-op, although the getter returns `true`.
-
-#### `win.maximizable`
-
-A `Boolean` property that determines whether the window can be manually maximized by user.
-
-On Linux the setter is a no-op, although the getter returns `true`.
-
-#### `win.fullScreenable`
-
-A `Boolean` property that determines whether the maximize/zoom window button toggles fullscreen mode or
-maximizes the window.
-
-#### `win.resizable`
-
-A `Boolean` property that determines whether the window can be manually resized by user.
-
-#### `win.closable`
-
-A `Boolean` property that determines whether the window can be manually closed by user.
-
-On Linux the setter is a no-op, although the getter returns `true`.
-
-#### `win.movable`
-
-A `Boolean` property that determines Whether the window can be moved by user.
-
-On Linux the setter is a no-op, although the getter returns `true`.
-
-#### `win.excludedFromShownWindowsMenu` _macOS_
-
-A `Boolean` property that determines whether the window is excluded from the application’s Windows menu. `false` by default.
-
-```js
-const win = new BrowserWindow({ height: 600, width: 600 })
-
-const template = [
-  {
-    role: 'windowmenu'
-  }
-]
-
-win.excludedFromShownWindowsMenu = true
-
-const menu = Menu.buildFromTemplate(template)
-Menu.setApplicationMenu(menu)
-```
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/client-request.md

@@ -5,7 +5,7 @@
 Process: [Main](../glossary.md#main-process)
 
 `ClientRequest` implements the [Writable Stream](https://nodejs.org/api/stream.html#stream_writable_streams)
-interface and is therefore an [EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter).
+interface and is therefore an [EventEmitter][event-emitter].
 
 ### `new ClientRequest(options)`
 
@@ -16,7 +16,7 @@ following properties:
 method.
   * `url` String (optional) - The request URL. Must be provided in the absolute
 form with the protocol scheme specified as http or https.
-  * `session` Object (optional) - The [`Session`](session.md) instance with
+  * `session` Session (optional) - The [`Session`](session.md) instance with
 which the request is associated.
   * `partition` String (optional) - The name of the [`partition`](session.md)
   with which the request is associated. Defaults to the empty string. The
@@ -134,7 +134,7 @@ Returns:
 * `statusCode` Integer
 * `method` String
 * `redirectUrl` String
-* `responseHeaders` Object
+* `responseHeaders` Record<String, String[]>
 
 Emitted when there is redirection and the mode is `manual`. Calling
 [`request.followRedirect`](#requestfollowredirect) will continue with the redirection.
@@ -158,7 +158,7 @@ internally buffered inside Electron process memory.
 #### `request.setHeader(name, value)`
 
 * `name` String - An extra HTTP header name.
-* `value` Object - An extra HTTP header value.
+* `value` String - An extra HTTP header value.
 
 Adds an extra HTTP header. The header name will be issued as-is without
 lowercasing. It can be called only before first write. Calling this method after
@@ -169,7 +169,7 @@ the first write will throw an error. If the passed value is not a `String`, its
 
 * `name` String - Specify an extra header name.
 
-Returns `Object` - The value of a previously set extra header name.
+Returns `String` - The value of a previously set extra header name.
 
 #### `request.removeHeader(name)`
 
@@ -229,3 +229,5 @@ no other properties will be set
 
 You can use this method in conjunction with `POST` requests to get the progress
 of a file upload or other data transfer.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/clipboard.md

@@ -4,18 +4,12 @@
 
 Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)
 
-The following example shows how to write a string to the clipboard:
-
-```javascript
-const { clipboard } = require('electron')
-clipboard.writeText('Example String')
-```
-
 On Linux, there is also a `selection` clipboard. To manipulate it
 you need to pass `selection` to each method:
 
 ```javascript
 const { clipboard } = require('electron')
+
 clipboard.writeText('Example String', 'selection')
 console.log(clipboard.readText('selection'))
 ```
@@ -28,56 +22,106 @@ The `clipboard` module has the following methods:
 
 ### `clipboard.readText([type])`
 
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns `String` - The content in the clipboard as plain text.
 
+```js
+const { clipboard } = require('electron')
+
+clipboard.writeText('hello i am a bit of text!')
+
+const text = clipboard.readText()
+console.log(text)
+// hello i am a bit of text!'
+```
+
 ### `clipboard.writeText(text[, type])`
 
 * `text` String
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `text` into the clipboard as plain text.
 
+```js
+const { clipboard } = require('electron')
+
+const text = 'hello i am a bit of text!'
+clipboard.writeText(text)
+```
+
 ### `clipboard.readHTML([type])`
 
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns `String` - The content in the clipboard as markup.
 
+```js
+const { clipboard } = require('electron')
+
+clipboard.writeHTML('<b>Hi</b>')
+const html = clipboard.readHTML()
+
+console.log(html)
+// <meta charset='utf-8'><b>Hi</b>
+```
+
 ### `clipboard.writeHTML(markup[, type])`
 
 * `markup` String
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes `markup` to the clipboard.
 
+```js
+const { clipboard } = require('electron')
+
+clipboard.writeHTML('<b>Hi</b')
+```
+
 ### `clipboard.readImage([type])`
 
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns [`NativeImage`](native-image.md) - The image content in the clipboard.
 
 ### `clipboard.writeImage(image[, type])`
 
 * `image` [NativeImage](native-image.md)
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes `image` to the clipboard.
 
 ### `clipboard.readRTF([type])`
 
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns `String` - The content in the clipboard as RTF.
 
+```js
+const { clipboard } = require('electron')
+
+clipboard.writeRTF('{\\rtf1\\ansi{\\fonttbl\\f0\\fswiss Helvetica;}\\f0\\pard\nThis is some {\\b bold} text.\\par\n}')
+
+const rtf = clipboard.readRTF()
+console.log(rtf)
+// {\\rtf1\\ansi{\\fonttbl\\f0\\fswiss Helvetica;}\\f0\\pard\nThis is some {\\b bold} text.\\par\n}
+```
+
 ### `clipboard.writeRTF(text[, type])`
 
 * `text` String
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `text` into the clipboard in RTF.
 
+```js
+const { clipboard } = require('electron')
+
+const rtf = '{\\rtf1\\ansi{\\fonttbl\\f0\\fswiss Helvetica;}\\f0\\pard\nThis is some {\\b bold} text.\\par\n}'
+clipboard.writeRTF(rtf)
+```
+
 ### `clipboard.readBookmark()` _macOS_ _Windows_
 
 Returns `Object`:
@@ -93,7 +137,7 @@ bookmark is unavailable.
 
 * `title` String
 * `url` String
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `title` and `url` into the clipboard as a bookmark.
 
@@ -102,7 +146,9 @@ you can use `clipboard.write` to write both a bookmark and fallback text to the
 clipboard.
 
 ```js
-clipboard.write({
+const { clipboard } = require('electron')
+
+clipboard.writeBookmark({
   text: 'https://electronjs.org',
   bookmark: 'Electron Homepage'
 })
@@ -110,39 +156,50 @@ clipboard.write({
 
 ### `clipboard.readFindText()` _macOS_
 
-Returns `String` - The text on the find pasteboard. This method uses synchronous
-IPC when called from the renderer process. The cached value is reread from the
-find pasteboard whenever the application is activated.
+Returns `String` - The text on the find pasteboard, which is the pasteboard that holds information about the current state of the active application’s find panel.
+
+This method uses synchronous IPC when called from the renderer process.
+The cached value is reread from the find pasteboard whenever the application is activated.
 
 ### `clipboard.writeFindText(text)` _macOS_
 
 * `text` String
 
-Writes the `text` into the find pasteboard as plain text. This method uses
-synchronous IPC when called from the renderer process.
+Writes the `text` into the find pasteboard (the pasteboard that holds information about the current state of the active application’s find panel) as plain text. This method uses synchronous IPC when called from the renderer process.
 
 ### `clipboard.clear([type])`
 
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Clears the clipboard content.
 
 ### `clipboard.availableFormats([type])`
 
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns `String[]` - An array of supported formats for the clipboard `type`.
 
+```js
+const { clipboard } = require('electron')
+
+const formats = clipboard.availableFormats()
+console.log(formats)
+// [ 'text/plain', 'text/html' ]
+```
+
 ### `clipboard.has(format[, type])` _Experimental_
 
 * `format` String
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns `Boolean` - Whether the clipboard supports the specified `format`.
 
-```javascript
+```js
 const { clipboard } = require('electron')
-console.log(clipboard.has('<p>selection</p>'))
+
+const hasFormat = clipboard.has('<p>selection</p>')
+console.log(hasFormat)
+// 'true' or 'false
 ```
 
 ### `clipboard.read(format)` _Experimental_
@@ -157,14 +214,33 @@ Returns `String` - Reads `format` type from the clipboard.
 
 Returns `Buffer` - Reads `format` type from the clipboard.
 
+```js
+const { clipboard } = require('electron')
+
+const buffer = Buffer.from('this is binary', 'utf8')
+clipboard.writeBuffer('public.utf8-plain-text', buffer)
+
+const ret = clipboard.readBuffer('public.utf8-plain-text')
+
+console.log(buffer.equals(out))
+// true
+```
+
 ### `clipboard.writeBuffer(format, buffer[, type])` _Experimental_
 
 * `format` String
 * `buffer` Buffer
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `buffer` into the clipboard as `format`.
 
+```js
+const { clipboard } = require('electron')
+
+const buffer = Buffer.from('writeBuffer', 'utf8')
+clipboard.writeBuffer('public.utf8-plain-text', buffer)
+```
+
 ### `clipboard.write(data[, type])`
 
 * `data` Object
@@ -173,10 +249,29 @@ Writes the `buffer` into the clipboard as `format`.
   * `image` [NativeImage](native-image.md) (optional)
   * `rtf` String (optional)
   * `bookmark` String (optional) - The title of the URL at `text`.
-* `type` String (optional) - Can be `selection` or `clipboard`. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-```javascript
-const { clipboard } = require('electron')
-clipboard.write({ text: 'test', html: '<b>test</b>' })
-```
 Writes `data` to the clipboard.
+
+```js
+const { clipboard } = require('electron')
+
+clipboard.write({
+  text: 'test',
+  html: '<b>Hi</b>',
+  rtf: '{\\rtf1\\utf8 text}',
+  bookmark: 'a title'
+})
+
+console.log(clipboard.readText())
+// 'test'
+
+console.log(clipboard.readHTML())
+// <meta charset='utf-8'><b>Hi</b>
+
+console.log(clipboard.readRTF())
+// '{\\rtf1\\utf8 text}'
+
+console.log(clipboard.readBookmark())
+// { title: 'a title', url: 'test' }
+```

docs/api/content-tracing.md

@@ -74,6 +74,9 @@ will be returned in the promise.
 
 Returns `Promise<Object>` - Resolves with an object containing the `value` and `percentage` of trace buffer maximum usage
 
+* `value` Number
+* `percentage` Number
+
 Get the maximum usage across processes of trace buffer as a percentage of the
 full state.
 

docs/api/context-bridge.md

@@ -0,0 +1,111 @@
+# contextBridge
+
+> Create a safe, bi-directional, synchronous bridge across isolated contexts
+
+Process: [Renderer](../glossary.md#renderer-process)
+
+An example of exposing an API to a renderer from an isolated preload script is given below:
+
+```javascript
+// Preload (Isolated World)
+const { contextBridge, ipcRenderer } = require('electron')
+
+contextBridge.exposeInMainWorld(
+  'electron',
+  {
+    doThing: () => ipcRenderer.send('do-a-thing')
+  }
+)
+```
+
+```javascript
+// Renderer (Main World)
+
+window.electron.doThing()
+```
+
+## Glossary
+
+### Main World
+
+The "Main World" is the javascript context that your main renderer code runs in.  By default the page you load in your renderer
+executes code in this world.
+
+### Isolated World
+
+When `contextIsolation` is enabled in your `webPreferences` your `preload` scripts run in an "Isolated World".  You can read more about
+context isolation and what it affects in the [BrowserWindow](browser-window.md) docs.
+
+## Methods
+
+The `contextBridge` module has the following methods:
+
+### `contextBridge.exposeInMainWorld(apiKey, api)` _Experimental_
+
+* `apiKey` String - The key to inject the API onto `window` with.  The API will be accessible on `window[apiKey]`.
+* `api` Record<String, any> - Your API object, more information on what this API can be and how it works is available below.
+
+## Usage
+
+### API Objects
+
+The `api` object provided to [`exposeInMainWorld`](#contextbridgeexposeinmainworldapikey-api-experimental) must be an object
+whose keys are strings and values are a `Function`, `String`, `Number`, `Array`, `Boolean` or another nested object that meets the same conditions.
+
+`Function` values are proxied to the other context and all other values are **copied** and **frozen**.  I.e. Any data / primitives sent in
+the API object become immutable and updates on either side of the bridge do not result in an update on the other side.
+
+An example of a complex API object is shown below.
+
+```javascript
+const { contextBridge } = require('electron')
+
+contextBridge.exposeInMainWorld(
+  'electron',
+  {
+    doThing: () => ipcRenderer.send('do-a-thing'),
+    myPromises: [Promise.resolve(), Promise.reject(new Error('whoops'))],
+    anAsyncFunction: async () => 123,
+    data: {
+      myFlags: ['a', 'b', 'c'],
+      bootTime: 1234
+    },
+    nestedAPI: {
+      evenDeeper: {
+        youCanDoThisAsMuchAsYouWant: {
+          fn: () => ({
+            returnData: 123
+          })
+        }
+      }
+    }
+  }
+)
+```
+
+### API Functions
+
+`Function` values that you bind through the `contextBridge` are proxied through Electron to ensure that contexts remain isolated.  This
+results in some key limitations that we've outlined below.
+
+#### Parameter / Error / Return Type support
+
+Because parameters, errors and return values are **copied** when they are sent over the bridge there are only certain types that can be used.
+At a high level if the type you want to use can be serialized and un-serialized into the same object it will work.  A table of type support
+has been included below for completeness.
+
+| Type | Complexity | Parameter Support | Return Value Support | Limitations |
+| ---- | ---------- | ----------------- | -------------------- | ----------- |
+| `String` | Simple | ✅ | ✅ | N/A |
+| `Number` | Simple | ✅ | ✅ | N/A |
+| `Boolean` | Simple | ✅ | ✅ | N/A |
+| `Object` | Complex | ✅ | ✅ | Keys must be supported "Simple" types in this table.  Values must be supported in this table.  Prototype modifications are dropped.  Sending custom classes will copy values but not the prototype. |
+| `Array` | Complex | ✅ | ✅ | Same limitations as the `Object` type |
+| `Error` | Complex | ✅ | ✅ | Errors that are thrown are also copied, this can result in the message and stack trace of the error changing slightly due to being thrown in a different context |
+| `Promise` | Complex | ✅ | ✅ | Promises are only proxied if they are a the return value or exact parameter.  Promises nested in arrays or obejcts will be dropped. |
+| `Function` | Complex | ✅ | ✅ | Prototype modifications are dropped.  Sending classes or constructors will not work. |
+| [Cloneable Types](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm) | Simple | ✅ | ✅ | See the linked document on cloneable types |
+| `Symbol` | N/A | ❌ | ❌ | Symbols cannot be copied across contexts so they are dropped |
+
+
+If the type you care about is not in the above table it is probably not supported.

docs/api/crash-reporter.md

@@ -48,7 +48,7 @@ The `crashReporter` module has the following methods:
   * `productName` String (optional) - Defaults to `app.name`.
   * `uploadToServer` Boolean (optional) - Whether crash reports should be sent to the server. Default is `true`.
   * `ignoreSystemCrashHandler` Boolean (optional) - Default is `false`.
-  * `extra` Object (optional) - An object you can define that will be sent along with the
+  * `extra` Record<String, String> (optional) - An object you can define that will be sent along with the
     report. Only string properties are sent correctly. Nested objects are not
     supported. When using Windows, the property names and values must be fewer than 64 characters.
   * `crashesDirectory` String (optional) - Directory to store the crash reports temporarily (only used when the crash reporter is started via `process.crashReporter.start`).

docs/api/debugger.md

@@ -50,7 +50,7 @@ Returns:
 
 * `event` Event
 * `method` String - Method name.
-* `params` Object - Event parameters defined by the 'parameters'
+* `params` unknown - Event parameters defined by the 'parameters'
    attribute in the remote debugging protocol.
 
 Emitted whenever the debugging target issues an instrumentation event.
@@ -78,7 +78,7 @@ Detaches the debugger from the `webContents`.
 
 * `method` String - Method name, should be one of the methods defined by the
    [remote debugging protocol][rdp].
-* `commandParams` Object (optional) - JSON object with request parameters.
+* `commandParams` any (optional) - JSON object with request parameters.
 
 Returns `Promise<any>` - A promise that resolves with the response defined by
 the 'returns' attribute of the command description in the remote debugging protocol

docs/api/dialog.md

@@ -50,7 +50,9 @@ The `dialog` module has the following methods:
       as a directory instead of a file.
   * `message` String (optional) _macOS_ - Message to display above input
     boxes.
-  * `securityScopedBookmarks` Boolean (optional) _masOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
+  * `securityScopedBookmarks` Boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
+
+Returns `String[] | undefined`, the file paths chosen by the user; if the dialog is cancelled it returns `undefined`.
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 
@@ -110,12 +112,12 @@ dialog.showOpenDialogSync(mainWindow, {
       as a directory instead of a file.
   * `message` String (optional) _macOS_ - Message to display above input
     boxes.
-  * `securityScopedBookmarks` Boolean (optional) _masOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
+  * `securityScopedBookmarks` Boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
 
 Returns `Promise<Object>` - Resolve with an object containing the following:
 
 * `canceled` Boolean - whether or not the dialog was canceled.
-* `filePaths` String[] (optional) - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
+* `filePaths` String[] - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
 * `bookmarks` String[] (optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated.
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
@@ -227,7 +229,7 @@ expanding and collapsing the dialog.
     include a checkbox with the given label.
   * `checkboxChecked` Boolean (optional) - Initial checked state of the
     checkbox. `false` by default.
-  * `icon` [NativeImage](native-image.md) (optional)
+  * `icon` ([NativeImage](native-image.md) | String) (optional)
   * `cancelId` Integer (optional) - The index of the button to be used to cancel the dialog, via
     the `Esc` key. By default this is assigned to the first button with "cancel" or "no" as the
     label. If no such labeled buttons exist and this option is not set, `0` will be used as the

docs/api/dock.md

@@ -18,6 +18,8 @@ app.dock.bounce()
 * `type` String (optional) - Can be `critical` or `informational`. The default is
  `informational`
 
+Returns `Integer` - an ID representing the request.
+
 When `critical` is passed, the dock icon will bounce until either the
 application becomes active or the request is canceled.
 
@@ -25,7 +27,7 @@ When `informational` is passed, the dock icon will bounce for one second.
 However, the request remains active until either the application becomes active
 or the request is canceled.
 
-Returns `Integer` an ID representing the request.
+**Nota Bene:** This method can only be used while the app is not focused; when the app is focused it will return -1.
 
 #### `dock.cancelBounce(id)` _macOS_
 

docs/api/download-item.md

@@ -4,7 +4,7 @@
 
 Process: [Main](../glossary.md#main-process)
 
-`DownloadItem` is an `EventEmitter` that represents a download item in Electron.
+`DownloadItem` is an [EventEmitter][event-emitter] that represents a download item in Electron.
 It is used in `will-download` event of `Session` class, and allows users to
 control the download item.
 
@@ -195,3 +195,5 @@ A `String` property that determines the save file path of the download item.
 The property is only available in session's `will-download` callback function.
 If user doesn't set the save path via the property, Electron will use the original
 routine to determine the save path; this usually prompts a save dialog.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/incoming-message.md

@@ -5,7 +5,7 @@
 Process: [Main](../glossary.md#main-process)
 
 `IncomingMessage` implements the [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams)
-interface and is therefore an [EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter).
+interface and is therefore an [EventEmitter][event-emitter].
 
 ### Instance Events
 
@@ -51,7 +51,7 @@ A `String` representing the HTTP status message.
 
 #### `response.headers`
 
-An `Object` representing the response HTTP headers. The `headers` object is
+An `Record<string, string[]>` representing the response HTTP headers. The `headers` object is
 formatted as follows:
 
 * All header names are lowercased.
@@ -72,3 +72,5 @@ An `Integer` indicating the HTTP protocol major version number.
 #### `response.httpVersionMinor`
 
 An `Integer` indicating the HTTP protocol minor version number.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/ipc-main.md

@@ -4,8 +4,7 @@
 
 Process: [Main](../glossary.md#main-process)
 
-The `ipcMain` module is an instance of the
-[EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter) class. When used in the main
+The `ipcMain` module is an [Event Emitter][event-emitter]. When used in the main
 process, it handles asynchronous and synchronous messages sent from a renderer
 process (web page). Messages sent from a renderer will be emitted to this
 module.
@@ -78,6 +77,7 @@ only the next time a message is sent to `channel`, after which it is removed.
 
 * `channel` String
 * `listener` Function
+  * `...args` any[]
 
 Removes the specified `listener` from the listener array for the specified
 `channel`.
@@ -91,7 +91,7 @@ Removes listeners of the specified `channel`.
 ### `ipcMain.handle(channel, listener)`
 
 * `channel` String
-* `listener` Function<Promise> | Function<any>
+* `listener` Function<Promise<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
 
@@ -123,7 +123,7 @@ WebContents is the source of the invoke request.
 ### `ipcMain.handleOnce(channel, listener)`
 
 * `channel` String
-* `listener` Function<Promise> | Function<any>
+* `listener` Function<Promise<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
 
@@ -146,3 +146,6 @@ in the [`ipc-main-event`](structures/ipc-main-event.md) structure docs.
 The documentation for the `event` object passed to `handle` callbacks can be
 found in the [`ipc-main-invoke-event`](structures/ipc-main-invoke-event.md)
 structure docs.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
+[web-contents-send]: web-contents.md#contentssendchannel-args

docs/api/ipc-renderer.md

@@ -4,8 +4,7 @@
 
 Process: [Renderer](../glossary.md#renderer-process)
 
-The `ipcRenderer` module is an instance of the
-[EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter) class. It provides a few
+The `ipcRenderer` module is an  [EventEmitter][event-emitter]. It provides a few
 methods so you can send synchronous and asynchronous messages from the render
 process (web page) to the main process. You can also receive replies from the
 main process.
@@ -128,3 +127,5 @@ the host page instead of the main process.
 
 The documentation for the `event` object passed to the `callback` can be found
 in the [`ipc-renderer-event`](structures/ipc-renderer-event.md) structure docs.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/menu-item.md

@@ -14,12 +14,13 @@ See [`Menu`](menu.md) for examples.
     * `menuItem` MenuItem
     * `browserWindow` [BrowserWindow](browser-window.md)
     * `event` [KeyboardEvent](structures/keyboard-event.md)
-  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteandmatchstyle`, `delete`, `selectall`, `reload`, `forcereload`, `toggledevtools`, `resetzoom`, `zoomin`, `zoomout`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideothers`, `unhide`, `quit`, `startspeaking`, `stopspeaking`, `close`, `minimize`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu` or `windowMenu` - Define the action of the menu item, when specified the
+  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `close`, `minimize`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
     `click` property will be ignored. See [roles](#roles).
   * `type` String (optional) - Can be `normal`, `separator`, `submenu`, `checkbox` or
     `radio`.
   * `label` String (optional)
   * `sublabel` String (optional)
+  * `toolTip` String (optional) _macOS_ - Hover text for this menu item.
   * `accelerator` [Accelerator](accelerator.md) (optional)
   * `icon` ([NativeImage](native-image.md) | String) (optional)
   * `enabled` Boolean (optional) - If false, the menu item will be greyed out and
@@ -81,7 +82,7 @@ The `role` property can have following values:
 * `reload` - Reload the current window.
 * `forceReload` - Reload the current window ignoring the cache.
 * `toggleDevTools` - Toggle developer tools in the current window.
-* `toggleFullScreen` - Toggle full screen mode on the current window.
+* `togglefullscreen` - Toggle full screen mode on the current window.
 * `resetZoom` - Reset the focused page's zoom level to the original size.
 * `zoomIn` - Zoom in the focused page by 10%.
 * `zoomOut` - Zoom out the focused page by 10%.
@@ -151,7 +152,7 @@ A `String` indicating the type of the item. Can be `normal`, `separator`, `subme
 
 #### `menuItem.role`
 
-A `String` (optional) indicating the item's role, if set. Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteandmatchstyle`, `delete`, `selectall`, `reload`, `forcereload`, `toggledevtools`, `resetzoom`, `zoomin`, `zoomout`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideothers`, `unhide`, `quit`, `startspeaking`, `stopspeaking`, `close`, `minimize`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu` or `windowMenu`
+A `String` (optional) indicating the item's role, if set. Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `close`, `minimize`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu`
 
 #### `menuItem.accelerator`
 
@@ -166,6 +167,10 @@ item's icon, if set.
 
 A `String` indicating the item's sublabel, this property can be dynamically changed.
 
+#### `menuItem.toolTip` _macOS_
+
+A `String` indicating the item's hover text.
+
 #### `menuItem.enabled`
 
 A `Boolean` indicating whether the item is enabled, this property can be

docs/api/modernization/property-updates.md

@@ -4,11 +4,6 @@ The Electron team is currently undergoing an initiative to convert separate gett
 
 ## Candidates
 
-* `app` module
-  * `dock`
-    * `badge`
-* `autoUpdater` module
-  * `feedUrl`
 * `BrowserWindow`
   * `fullscreen`
   * `simpleFullscreen`
@@ -20,14 +15,6 @@ The Electron team is currently undergoing an initiative to convert separate gett
   * `visibleOnAllWorkspaces`
 * `crashReporter` module
   * `uploadToServer`
-* `Session` module
-  * `preloads`
-* `webContents` module
-  * `zoomFactor`
-  * `zoomLevel`
-  * `audioMuted`
-  * `userAgent`
-  * `frameRate`
 * `webFrame` modules
   * `zoomFactor`
   * `zoomLevel`
@@ -58,3 +45,9 @@ The Electron team is currently undergoing an initiative to convert separate gett
   * `isMacTemplateImage`
 * `SystemPreferences` module
   * `appLevelAppearance`
+* `webContents` module
+  * `audioMuted`
+  * `frameRate`
+  * `userAgent`
+  * `zoomFactor`
+  * `zoomLevel`

docs/api/native-image.md

@@ -64,7 +64,7 @@ If you want to support displays with different DPI densities at the same time,
 you can put images with different sizes in the same folder and use the filename
 without DPI suffixes. For example:
 
-```text
+```plaintext
 images/
 ├── icon.png
 ├── icon@2x.png
@@ -328,9 +328,9 @@ can be called on empty images.
 
 [buffer]: https://nodejs.org/api/buffer.html#buffer_class_buffer
 
-## Properties
+### Instance Properties
 
-### `nativeImage.isMacTemplateImage` _macOS_
+#### `nativeImage.isMacTemplateImage` _macOS_
 
 A `Boolean` property that determines whether the image is considered a [template image](https://developer.apple.com/documentation/appkit/nsimage/1520017-template).
 

docs/api/native-theme.md

@@ -0,0 +1,66 @@
+# nativeTheme
+
+> Read and respond to changes in Chromium's native color theme.
+
+Process: [Main](../glossary.md#main-process)
+
+## Events
+
+The `nativeTheme` module emits the following events:
+
+### Event: 'updated'
+
+Emitted when something in the underlying NativeTheme has changed. This normally
+means that either the value of `shouldUseDarkColors`,
+`shouldUseHighContrastColors` or `shouldUseInvertedColorScheme` has changed.
+You will have to check them to determine which one has changed.
+
+## Properties
+
+The `nativeTheme` module has the following properties:
+
+### `nativeTheme.shouldUseDarkColors` _Readonly_
+
+A `Boolean` for if the OS / Chromium currently has a dark mode enabled or is
+being instructed to show a dark-style UI.  If you want to modify this value you
+should use `themeSource` below.
+
+### `nativeTheme.themeSource`
+
+A `String` property that can be `system`, `light` or `dark`.  It is used to override and supercede
+the value that Chromium has chosen to use internally.
+
+Setting this property to `system` will remove the override and
+everything will be reset to the OS default.  By default `themeSource` is `system`.
+
+Settings this property to `dark` will have the following effects:
+* `nativeTheme.shouldUseDarkColors` will be `true` when accessed
+* Any UI Electron renders on Linux and Windows including context menus, devtools, etc. will use the dark UI.
+* Any UI the OS renders on macOS including menus, window frames, etc. will use the dark UI.
+* The [`prefers-color-scheme`](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme) CSS query will match `dark` mode.
+* The `updated` event will be emitted
+
+Settings this property to `light` will have the following effects:
+* `nativeTheme.shouldUseDarkColors` will be `false` when accessed
+* Any UI Electron renders on Linux and Windows including context menus, devtools, etc. will use the light UI.
+* Any UI the OS renders on macOS including menus, window frames, etc. will use the light UI.
+* The [`prefers-color-scheme`](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme) CSS query will match `light` mode.
+* The `updated` event will be emitted
+
+The usage of this property should align with a classic "dark mode" state machine in your application
+where the user has three options.
+* `Follow OS` --> `themeSource = 'system'`
+* `Dark Mode` --> `themeSource = 'dark'`
+* `Light Mode` --> `themeSource = 'light'`
+
+Your application should then always use `shouldUseDarkColors` to determine what CSS to apply.
+
+### `nativeTheme.shouldUseHighContrastColors` _macOS_ _Windows_ _Readonly_
+
+A `Boolean` for if the OS / Chromium currently has high-contrast mode enabled
+or is being instructed to show a high-constrast UI.
+
+### `nativeTheme.shouldUseInvertedColorScheme` _macOS_ _Windows_ _Readonly_
+
+A `Boolean` for if the OS / Chromium currently has an inverted color scheme
+or is being instructed to use an inverted color scheme.

docs/api/net-log.md

@@ -22,9 +22,17 @@ of the `app` module gets emitted.
 
 ## Methods
 
-### `netLog.startLogging(path)`
+### `netLog.startLogging(path[, options])`
 
 * `path` String - File path to record network logs.
+* `options` Object (optional)
+  * `captureMode` String (optional) - What kinds of data should be captured. By
+    default, only metadata about requests will be captured. Setting this to
+    `includeSensitive` will include cookies and authentication data. Setting
+    it to `everything` will include all bytes transferred on sockets. Can be
+    `default`, `includeSensitive` or `everything`.
+  * `maxFileSize` Number (optional) - When the log grows beyond this size,
+    logging will automatically stop. Defaults to unlimited.
 
 Returns `Promise<void>` - resolves when the net log has begun recording.
 
@@ -38,10 +46,10 @@ Stops recording network events. If not called, net logging will automatically en
 
 ## Properties
 
-### `netLog.currentlyLogging`
+### `netLog.currentlyLogging` _Readonly_
 
 A `Boolean` property that indicates whether network logs are recorded.
 
-### `netLog.currentlyLoggingPath` **Deprecated**
+### `netLog.currentlyLoggingPath` _Readonly_ _Deprecated_
 
 A `String` property that returns the path to the current log file.

docs/api/net.md

@@ -54,7 +54,7 @@ The `net` module has the following methods:
 
 ### `net.request(options)`
 
-* `options` (Object | String) - The `ClientRequest` constructor options.
+* `options` (ClientRequestConstructorOptions | String) - The `ClientRequest` constructor options.
 
 Returns [`ClientRequest`](./client-request.md)
 

docs/api/notification.md

@@ -14,8 +14,7 @@ If you want to show Notifications from a renderer process you should use the [HT
 
 Process: [Main](../glossary.md#main-process)
 
-`Notification` is an
-[EventEmitter](https://nodejs.org/api/events.html#events_class_events_eventemitter).
+`Notification` is an [EventEmitter][event-emitter].
 
 It creates a new `Notification` with native properties as set by the `options`.
 
@@ -111,6 +110,44 @@ shown notification and create a new one with identical properties.
 
 Dismisses the notification.
 
+### Instance Properties
+
+#### `notification.title`
+
+A `String` property representing the title of the notification.
+
+#### `notification.subtitle`
+
+A `String` property representing the subtitle of the notification.
+
+#### `notification.body`
+
+A `String` property representing the body of the notification.
+
+#### `notification.replyPlaceholder`
+
+A `String` property representing the reply placeholder of the notification.
+
+#### `notification.sound`
+
+A `String` property representing the sound of the notification.
+
+#### `notification.closeButtonText`
+
+A `String` property representing the close button text of the notification.
+
+#### `notification.silent`
+
+A `Boolean` property representing whether the notification is silent.
+
+#### `notification.hasReply`
+
+A `Boolean` property representing whether the notification has a reply action.
+
+#### `notification.actions`
+
+A [`NotificationAction[]`](structures/notification-action.md) property representing the actions of the notification.
+
 ### Playing Sounds
 
 On macOS, you can specify the name of the sound you'd like to play when the
@@ -125,3 +162,5 @@ or one of the following locations:
 * `/System/Library/Sounds`
 
 See the [`NSSound`](https://developer.apple.com/documentation/appkit/nssound) docs for more information.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/process.md

@@ -56,17 +56,17 @@ process.once('loaded', () => {
 
 ## Properties
 
-### `process.defaultApp`
+### `process.defaultApp` _Readonly_
 
 A `Boolean`. When app is started by being passed as parameter to the default app, this
 property is `true` in the main process, otherwise it is `undefined`.
 
-### `process.isMainFrame`
+### `process.isMainFrame` _Readonly_
 
 A `Boolean`, `true` when the current renderer context is the "main" renderer
 frame. If you want the ID of the current frame you should use `webFrame.routingId`.
 
-### `process.mas`
+### `process.mas` _Readonly_
 
 A `Boolean`. For Mac App Store build, this property is `true`, for other builds it is
 `undefined`.
@@ -88,11 +88,11 @@ A `Boolean` that controls whether or not deprecation warnings are printed to `st
 formerly callback-based APIs converted to Promises are invoked using callbacks. Setting this to `true`
 will enable deprecation warnings.
 
-### `process.resourcesPath`
+### `process.resourcesPath` _Readonly_
 
 A `String` representing the path to the resources directory.
 
-### `process.sandboxed`
+### `process.sandboxed` _Readonly_
 
 A `Boolean`. When the renderer process is sandboxed, this property is `true`,
 otherwise it is `undefined`.
@@ -115,19 +115,19 @@ A `Boolean` that controls whether or not process warnings printed to `stderr` in
  (including deprecations). This property is instead of the `--trace-warnings` command
  line flag.
 
-### `process.type`
+### `process.type` _Readonly_
 
 A `String` representing the current process's type, can be `"browser"` (i.e. main process), `"renderer"`, or `"worker"` (i.e. web worker).
 
-### `process.versions.chrome`
+### `process.versions.chrome` _Readonly_
 
 A `String` representing Chrome's version string.
 
-### `process.versions.electron`
+### `process.versions.electron` _Readonly_
 
 A `String` representing Electron's version string.
 
-### `process.windowsStore`
+### `process.windowsStore` _Readonly_
 
 A `Boolean`. If the app is running as a Windows Store app (appx), this property is `true`,
 for otherwise it is `undefined`.
@@ -217,11 +217,15 @@ that all statistics are reported in Kilobytes.
 
 Returns `String` - The version of the host operating system.
 
-Examples:
+Example:
 
-* `macOS` -> `10.13.6`
-* `Windows` -> `10.0.17763`
-* `Linux` -> `4.15.0-45-generic`
+```js
+const version = process.getSystemVersion()
+console.log(version)
+// On macOS -> '10.13.6'
+// On Windows -> '10.0.17763'
+// On Linux -> '4.15.0-45-generic'
+```
 
 **Note:** It returns the actual operating system version instead of kernel version on macOS unlike `os.release()`.
 

docs/api/protocol.md

@@ -228,7 +228,7 @@ should be called with either a `String` or an object that has the `data`,
     * `redirectRequest` Object
       * `url` String
       * `method` String (optional)
-      * `session` Object (optional)
+      * `session` Session | null (optional)
       * `uploadData` [ProtocolResponseUploadData](structures/protocol-response-upload-data.md) (optional)
 * `completion` Function (optional)
   * `error` Error
@@ -388,10 +388,8 @@ which sends a `Buffer` as a response.
     * `redirectRequest` Object
       * `url` String
       * `method` String (optional)
-      * `session` Object | null (optional)
-      * `uploadData` Object (optional)
-        * `contentType` String - MIME type of the content.
-        * `data` String - Content to be sent.
+      * `session` Session | null (optional)
+      * `uploadData` [ProtocolResponseUploadData](structures/protocol-response-upload-data.md) (optional)
 * `completion` Function (optional)
   * `error` Error
 

docs/api/remote.md

@@ -199,7 +199,7 @@ process.
 
 ## Properties
 
-### `remote.process`
+### `remote.process` _Readonly_
 
 A `NodeJS.Process` object.  The `process` object in the main process. This is the same as
 `remote.getGlobal('process')` but is cached.

docs/api/screen.md

@@ -7,14 +7,14 @@ Process: [Main](../glossary.md#main-process)
 This module cannot be used until the `ready` event of the `app`
 module is emitted.
 
-`screen` is an [EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter).
+`screen` is an [EventEmitter][event-emitter].
 
 **Note:** In the renderer / DevTools, `window.screen` is a reserved DOM
 property, so writing `let { screen } = require('electron')` will not work.
 
 An example of creating a window that fills the whole screen:
 
-```javascript
+```javascript fiddle='docs/fiddles/screen/fit-screen'
 const { app, BrowserWindow, screen } = require('electron')
 
 let win
@@ -152,3 +152,5 @@ Returns [`Rectangle`](structures/rectangle.md)
 Converts a screen DIP rect to a screen physical rect.
 The DPI scale is performed relative to the display nearest to `window`.
 If `window` is null, scaling will be performed to the display nearest to `rect`.
+
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/session.md

@@ -91,6 +91,20 @@ session.defaultSession.on('will-download', (event, item, webContents) => {
 })
 ```
 
+#### Event: 'preconnect' _Experimental_
+
+Returns:
+
+* `event` Event
+* `preconnectUrl` String - The URL being requested for preconnection by the
+  renderer.
+* `allowCredentials` Boolean - True if the renderer is requesting that the
+  connection include credentials (see the
+  [spec](https://w3c.github.io/resource-hints/#preconnect) for more details.)
+
+Emitted when a render process requests preconnection to a URL, generally due to
+a [resource hint](https://w3c.github.io/resource-hints/).
+
 ### Instance Methods
 
 The following methods are available on instances of `Session`:
@@ -238,6 +252,14 @@ window.webContents.session.enableNetworkEmulation({
 window.webContents.session.enableNetworkEmulation({ offline: true })
 ```
 
+#### `ses.preconnect(options)` _Experimental_
+
+* `options` Object
+  * `url` String - URL for preconnect. Only the origin is relevant for opening the socket.
+  * `numSockets` Number (optional) - number of sockets to preconnect. Must be between 1 and 6. Defaults to 1.
+
+Preconnects the given number of sockets to an origin.
+
 #### `ses.disableNetworkEmulation()`
 
 Disables any network emulation already active for the `session`. Resets to
@@ -427,15 +449,15 @@ registered.
 
 The following properties are available on instances of `Session`:
 
-#### `ses.cookies`
+#### `ses.cookies` _Readonly_
 
 A [`Cookies`](cookies.md) object for this session.
 
-#### `ses.webRequest`
+#### `ses.webRequest` _Readonly_
 
 A [`WebRequest`](web-request.md) object for this session.
 
-#### `ses.protocol`
+#### `ses.protocol` _Readonly_
 
 A [`Protocol`](protocol.md) object for this session.
 
@@ -454,7 +476,7 @@ app.on('ready', function () {
 })
 ```
 
-#### `ses.netLog`
+#### `ses.netLog` _Readonly_
 
 A [`NetLog`](net-log.md) object for this session.
 

docs/api/structures/extension-info.md

@@ -0,0 +1,4 @@
+# ExtensionInfo Object
+
+* `name` String
+* `version` String

docs/api/structures/input-event.md

@@ -0,0 +1,6 @@
+# InputEvent Object
+
+* `modifiers` String[] - An array of modifiers of the event, can
+  be `shift`, `control`, `alt`, `meta`, `isKeypad`, `isAutoRepeat`,
+  `leftButtonDown`, `middleButtonDown`, `rightButtonDown`, `capsLock`,
+  `numLock`, `left`, `right`.

docs/api/structures/keyboard-input-event.md

@@ -0,0 +1,6 @@
+# KeyboardInputEvent Object extends `InputEvent`
+
+* `type` String - The type of the event, can be `keyDown`, `keyUp` or `char`.
+* `keyCode` String - The character that will be sent
+  as the keyboard event. Should only use the valid key codes in
+  [Accelerator](../accelerator.md).

docs/api/structures/memory-info.md

@@ -0,0 +1,9 @@
+# MemoryInfo Object
+
+* `workingSetSize` Integer - The amount of memory currently pinned to actual physical RAM.
+* `peakWorkingSetSize` Integer - The maximum amount of memory that has ever been pinned
+  to actual physical RAM.
+* `privateBytes` Integer (optional) _Windows_ - The amount of memory not shared by other processes, such as
+  JS heap or HTML content.
+
+Note that all statistics are reported in Kilobytes.

docs/api/structures/mouse-input-event.md

@@ -0,0 +1,12 @@
+# MouseInputEvent Object extends `InputEvent`
+
+* `type` String - The type of the event, can be `mouseDown`,
+    `mouseUp`, `mouseEnter`, `mouseLeave`, `contextMenu`, `mouseWheel` or `mouseMove`.
+* `x` Integer
+* `y` Integer
+* `button` String (optional) - The button pressed, can be `left`, `middle`, `right`.
+* `globalX` Integer (optional)
+* `globalY` Integer (optional)
+* `movementX` Integer (optional)
+* `movementY` Integer (optional)
+* `clickCount` Integer (optional)

docs/api/structures/mouse-wheel-input-event.md

@@ -0,0 +1,11 @@
+# MouseWheelInputEvent Object extends `MouseInputEvent`
+
+* `type` String - The type of the event, can be `mouseWheel`.
+* `deltaX` Integer (optional)
+* `deltaY` Integer (optional)
+* `wheelTicksX` Integer (optional)
+* `wheelTicksY` Integer (optional)
+* `accelerationRatioX` Integer (optional)
+* `accelerationRatioY` Integer (optional)
+* `hasPreciseScrollingDeltas` Boolean (optional)
+* `canScroll` Boolean (optional)

docs/api/structures/process-metric.md

@@ -1,12 +1,22 @@
 # ProcessMetric Object
 
 * `pid` Integer - Process id of the process.
-* `type` String - Process type (Browser or Tab or GPU etc).
+* `type` String - Process type. One of the following values:
+  * `Browser`
+  * `Tab`
+  * `Utility`
+  * `Zygote`
+  * `Sandbox helper`
+  * `GPU`
+  * `Pepper Plugin`
+  * `Pepper Plugin Broker`
+  * `Unknown`
 * `cpu` [CPUUsage](cpu-usage.md) - CPU usage of the process.
 * `creationTime` Number - Creation time for this process.
     The time is represented as number of milliseconds since epoch.
     Since the `pid` can be reused after a process dies,
     it is useful to use both the `pid` and the `creationTime` to uniquely identify a process.
+* `memory` [MemoryInfo](memory-info.md) - Memory information for the process.
 * `sandboxed` Boolean (optional) _macOS_ _Windows_ - Whether the process is sandboxed on OS level.
 * `integrityLevel` String (optional) _Windows_ - One of the following values:
   * `untrusted`

docs/api/structures/protocol-response-upload-data.md

@@ -1,4 +1,4 @@
 # ProtocolResponseUploadData Object
 
 * `contentType` String - MIME type of the content.
-* `data` String - Content to be sent.
+* `data` String | Buffer - Content to be sent.

docs/api/structures/trace-config.md

@@ -1,6 +1,6 @@
 # TraceConfig Object
 
-* `recording_mode` String (optional) - one of "record-until-full" | "record-continuously" | "record-as-much-as-possible" | "trace-to-console". Defaults to "record-until-full".
+* `recording_mode` String (optional) - Can be `record-until-full`, `record-continuously`, `record-as-much-as-possible` or `trace-to-console`. Defaults to `record-until-full`.
 * `trace_buffer_size_in_kb` number (optional) - maximum size of the trace
   recording buffer in kilobytes. Defaults to 100MB.
 * `trace_buffer_size_in_events` number (optional) - maximum size of the trace
@@ -19,7 +19,7 @@
   include in the trace. If not specified, trace all processes.
 * `histogram_names` String[] (optional) - a list of [histogram][] names to report
   with the trace.
-* `memory_dump_config` Object (optional) - if the
+* `memory_dump_config` Record<String, any> (optional) - if the
   `disabled-by-default-memory-infra` category is enabled, this contains
   optional additional configuration for data collection. See the [Chromium
   memory-infra docs][memory-infra docs] for more information.

docs/api/system-preferences.md

@@ -27,34 +27,34 @@ Returns:
 
 * `event` Event
 
-### Event: 'inverted-color-scheme-changed' _Windows_
+### Event: 'inverted-color-scheme-changed' _Windows_ _Deprecated_
 
 Returns:
 
 * `event` Event
 * `invertedColorScheme` Boolean - `true` if an inverted color scheme (a high contrast color scheme with light text and dark backgrounds) is being used, `false` otherwise.
 
-### Event: 'high-contrast-color-scheme-changed' _Windows_
+**Deprecated:** Should use the new [`updated`](native-theme.md#event-updated) event on the `nativeTheme` module.
+
+### Event: 'high-contrast-color-scheme-changed' _Windows_ _Deprecated_
 
 Returns:
 
 * `event` Event
 * `highContrastColorScheme` Boolean - `true` if a high contrast theme is being used, `false` otherwise.
 
-### Event: 'appearance-changed' _macOS_
-
-Returns:
-
-* `newAppearance` String - Can be `dark` or `light`
-
-**NOTE:** This event is only emitted after you have called `startAppLevelAppearanceTrackingOS`
+**Deprecated:** Should use the new [`updated`](native-theme.md#event-updated) event on the `nativeTheme` module.
 
 ## Methods
 
-### `systemPreferences.isDarkMode()` _macOS_
+### `systemPreferences.isDarkMode()` _macOS_ _Windows_ _Deprecated_
 
 Returns `Boolean` - Whether the system is in Dark Mode.
 
+**Note:** On macOS 10.15 Catalina in order for this API to return the correct value when in the "automatic" dark mode setting you must either have `NSRequiresAquaSystemAppearance=false` in your `Info.plist` or be on Electron `>=7.0.0`.  See the [dark mode guide](../tutorial/mojave-dark-mode-guide.md) for more information.
+
+**Deprecated:** Should use the new [`nativeTheme.shouldUseDarkColors`](native-theme.md#nativethemeshouldusedarkcolors-readonly) API.
+
 ### `systemPreferences.isSwipeTrackingFromScrollEventsEnabled()` _macOS_
 
 Returns `Boolean` - Whether the Swipe between pages setting is on.
@@ -62,7 +62,7 @@ Returns `Boolean` - Whether the Swipe between pages setting is on.
 ### `systemPreferences.postNotification(event, userInfo[, deliverImmediately])` _macOS_
 
 * `event` String
-* `userInfo` Object
+* `userInfo` Record<String, any>
 * `deliverImmediately` Boolean (optional) - `true` to post notifications immediately even when the subscribing app is inactive.
 
 Posts `event` as native notifications of macOS. The `userInfo` is an Object
@@ -71,7 +71,7 @@ that contains the user information dictionary sent along with the notification.
 ### `systemPreferences.postLocalNotification(event, userInfo)` _macOS_
 
 * `event` String
-* `userInfo` Object
+* `userInfo` Record<String, any>
 
 Posts `event` as native notifications of macOS. The `userInfo` is an Object
 that contains the user information dictionary sent along with the notification.
@@ -79,7 +79,7 @@ that contains the user information dictionary sent along with the notification.
 ### `systemPreferences.postWorkspaceNotification(event, userInfo)` _macOS_
 
 * `event` String
-* `userInfo` Object
+* `userInfo` Record<String, any>
 
 Posts `event` as native notifications of macOS. The `userInfo` is an Object
 that contains the user information dictionary sent along with the notification.
@@ -89,14 +89,16 @@ that contains the user information dictionary sent along with the notification.
 * `event` String
 * `callback` Function
   * `event` String
-  * `userInfo` Object
+  * `userInfo` Record<String, unknown>
+  * `object` String
 
 Returns `Number` - The ID of this subscription
 
 Subscribes to native notifications of macOS, `callback` will be called with
 `callback(event, userInfo)` when the corresponding `event` happens. The
 `userInfo` is an Object that contains the user information dictionary sent
-along with the notification.
+along with the notification. The `object` is the sender of the notification,
+and only supports `NSString` values for now.
 
 The `id` of the subscriber is returned, which can be used to unsubscribe the
 `event`.
@@ -114,7 +116,8 @@ example values of `event` are:
 * `event` String
 * `callback` Function
   * `event` String
-  * `userInfo` Object
+  * `userInfo` Record<String, unknown>
+  * `object` String
 
 Returns `Number` - The ID of this subscription
 
@@ -126,7 +129,8 @@ This is necessary for events such as `NSUserDefaultsDidChangeNotification`.
 * `event` String
 * `callback` Function
   * `event` String
-  * `userInfo` Object
+  * `userInfo` Record<String, unknown>
+  * `object` String
 
 Same as `subscribeNotification`, but uses `NSWorkspace.sharedWorkspace.notificationCenter`.
 This is necessary for events such as `NSWorkspaceDidActivateApplicationNotification`.
@@ -151,7 +155,7 @@ Same as `unsubscribeNotification`, but removes the subscriber from `NSWorkspace.
 
 ### `systemPreferences.registerDefaults(defaults)` _macOS_
 
-* `defaults` Object - a dictionary of (`key: value`) user defaults
+* `defaults` Record<String, String | Boolean | Number> - a dictionary of (`key: value`) user defaults
 
 Add the specified defaults to your application's `NSUserDefaults`.
 
@@ -340,16 +344,22 @@ See the [Windows docs][windows-colors] and the [MacOS docs][macos-colors] for mo
   * `red`
   * `yellow`
 
+Returns `String` - The standard system color formatted as `#RRGGBBAA`.
+
 Returns one of several standard system colors that automatically adapt to vibrancy and changes in accessibility settings like 'Increase contrast' and 'Reduce transparency'. See [Apple Documentation](https://developer.apple.com/design/human-interface-guidelines/macos/visual-design/color#system-colors) for  more details.
 
-### `systemPreferences.isInvertedColorScheme()` _Windows_
+### `systemPreferences.isInvertedColorScheme()` _Windows_ _Deprecated_
 
 Returns `Boolean` - `true` if an inverted color scheme (a high contrast color scheme with light text and dark backgrounds) is active, `false` otherwise.
 
-### `systemPreferences.isHighContrastColorScheme()` _Windows_
+**Deprecated:** Should use the new [`nativeTheme.shouldUseInvertedColorScheme`](native-theme.md#nativethemeshoulduseinvertedcolorscheme-macos-windows-readonly) API.
+
+### `systemPreferences.isHighContrastColorScheme()` _macOS_ _Windows_ _Deprecated_
 
 Returns `Boolean` - `true` if a high contrast theme is active, `false` otherwise.
 
+**Depreacted:** Should use the new [`nativeTheme.shouldUseHighContrastColors`](native-theme.md#nativethemeshouldusehighcontrastcolors-macos-windows-readonly) API.
+
 ### `systemPreferences.getEffectiveAppearance()` _macOS_
 
 Returns `String` - Can be `dark`, `light` or `unknown`.
@@ -362,10 +372,12 @@ Please note that until Electron is built targeting the 10.14 SDK, your applicati
 the interim in order for your application to inherit the OS preference you must set the
 `NSRequiresAquaSystemAppearance` key in your apps `Info.plist` to `false`.  If you are
 using `electron-packager` or `electron-forge` just set the `enableDarwinDarkMode`
-packager option to `true`.  See the [Electron Packager API](https://github.com/electron-userland/electron-packager/blob/master/docs/api.md#darwindarkmodesupport)
+packager option to `true`.  See the [Electron Packager API](https://github.com/electron/electron-packager/blob/master/docs/api.md#darwindarkmodesupport)
 for more details.
 
-### `systemPreferences.getAppLevelAppearance()` _macOS_
+**[Deprecated](modernization/property-updates.md)**
+
+### `systemPreferences.getAppLevelAppearance()` _macOS_ _Deprecated_
 
 Returns `String` | `null` - Can be `dark`, `light` or `unknown`.
 
@@ -373,7 +385,9 @@ Gets the macOS appearance setting that you have declared you want for
 your application, maps to [NSApplication.appearance](https://developer.apple.com/documentation/appkit/nsapplication/2967170-appearance?language=objc).
 You can use the `setAppLevelAppearance` API to set this value.
 
-### `systemPreferences.setAppLevelAppearance(appearance)` _macOS_
+**[Deprecated](modernization/property-updates.md)**
+
+### `systemPreferences.setAppLevelAppearance(appearance)` _macOS_ _Deprecated_
 
 * `appearance` String | null - Can be `dark` or `light`
 
@@ -448,8 +462,25 @@ Returns an object with system animation settings.
 
 ### `systemPreferences.appLevelAppearance` _macOS_
 
-A `String` property that determines the macOS appearance setting for
+A `String` property that can be `dark`, `light` or `unknown`. It determines the macOS appearance setting for
 your application. This maps to values in: [NSApplication.appearance](https://developer.apple.com/documentation/appkit/nsapplication/2967170-appearance?language=objc). Setting this will override the
 system default as well as the value of `getEffectiveAppearance`.
 
 Possible values that can be set are `dark` and `light`, and possible return values are `dark`, `light`, and `unknown`.
+
+This property is only available on macOS 10.14 Mojave or newer.
+
+### `systemPreferences.effectiveAppearance` _macOS_ _Readonly_
+
+A `String` property that can be `dark`, `light` or `unknown`.
+
+Returns the macOS appearance setting that is currently applied to your application,
+maps to [NSApplication.effectiveAppearance](https://developer.apple.com/documentation/appkit/nsapplication/2967171-effectiveappearance?language=objc)
+
+Please note that until Electron is built targeting the 10.14 SDK, your application's
+`effectiveAppearance` will default to 'light' and won't inherit the OS preference. In
+the interim in order for your application to inherit the OS preference you must set the
+`NSRequiresAquaSystemAppearance` key in your apps `Info.plist` to `false`.  If you are
+using `electron-packager` or `electron-forge` just set the `enableDarwinDarkMode`
+packager option to `true`.  See the [Electron Packager API](https://github.com/electron/electron-packager/blob/master/docs/api.md#darwindarkmodesupport)
+for more details.

docs/api/touch-bar-button.md

@@ -10,7 +10,7 @@ Process: [Main](../tutorial/application-architecture.md#main-and-renderer-proces
   * `label` String (optional) - Button text.
   * `backgroundColor` String (optional) - Button background color in hex format,
     i.e `#ABCDEF`.
-  * `icon` [NativeImage](native-image.md) (optional) - Button icon.
+  * `icon` [NativeImage](native-image.md) | String (optional) - Button icon.
   * `iconPosition` String (optional) - Can be `left`, `right` or `overlay`.
   * `click` Function (optional) - Function to call when the button is clicked.
 

docs/api/touch-bar-scrubber.md

@@ -8,15 +8,15 @@ Process: [Main](../tutorial/application-architecture.md#main-and-renderer-proces
 
 * `options` Object
   * `items` [ScrubberItem[]](structures/scrubber-item.md) - An array of items to place in this scrubber.
-  * `select` Function - Called when the user taps an item that was not the last tapped item.
+  * `select` Function (optional) - Called when the user taps an item that was not the last tapped item.
     * `selectedIndex` Integer - The index of the item the user selected.
-  * `highlight` Function - Called when the user taps any item.
+  * `highlight` Function (optional) - Called when the user taps any item.
     * `highlightedIndex` Integer - The index of the item the user touched.
-  * `selectedStyle` String - Selected item style. Defaults to `null`.
-  * `overlayStyle` String - Selected overlay item style. Defaults to `null`.
-  * `showArrowButtons` Boolean - Defaults to `false`.
-  * `mode` String - Defaults to `free`.
-  * `continuous` Boolean - Defaults to `true`.
+  * `selectedStyle` String (optional) - Selected item style. Defaults to `null`.
+  * `overlayStyle` String (optional) - Selected overlay item style. Defaults to `null`.
+  * `showArrowButtons` Boolean (optional) - Defaults to `false`.
+  * `mode` String (optional) - Defaults to `free`.
+  * `continuous` Boolean (optional) - Defaults to `true`.
 
 ### Instance Properties
 

docs/api/touch-bar-segmented-control.md

@@ -27,7 +27,7 @@ Process: [Main](../tutorial/application-architecture.md#main-and-renderer-proces
     * `buttons` - Make the segments act as buttons, each segment can be pressed and released but never marked as active.
   * `segments` [SegmentedControlSegment[]](structures/segmented-control-segment.md) - An array of segments to place in this control.
   * `selectedIndex` Integer (optional) - The index of the currently selected segment, will update automatically with user interaction. When the mode is multiple it will be the last selected item.
-  * `change` Function - Called when the user selects a new segment.
+  * `change` Function (optional) - Called when the user selects a new segment.
     * `selectedIndex` Integer - The index of the segment the user selected.
     * `isSelected` Boolean - Whether as a result of user selection the segment is selected or not.
 

docs/api/touch-bar.md

@@ -7,7 +7,7 @@ Process: [Main](../tutorial/application-architecture.md#main-and-renderer-proces
 ### `new TouchBar(options)` _Experimental_
 
 * `options` Object
-  * `items` ([TouchBarButton](touch-bar-button.md) | [TouchBarColorPicker](touch-bar-color-picker.md) | [TouchBarGroup](touch-bar-group.md) | [TouchBarLabel](touch-bar-label.md) | [TouchBarPopover](touch-bar-popover.md) | [TouchBarScrubber](touch-bar-scrubber.md) | [TouchBarSegmentedControl](touch-bar-segmented-control.md) | [TouchBarSlider](touch-bar-slider.md) | [TouchBarSpacer](touch-bar-spacer.md))[]
+  * `items` ([TouchBarButton](touch-bar-button.md) | [TouchBarColorPicker](touch-bar-color-picker.md) | [TouchBarGroup](touch-bar-group.md) | [TouchBarLabel](touch-bar-label.md) | [TouchBarPopover](touch-bar-popover.md) | [TouchBarScrubber](touch-bar-scrubber.md) | [TouchBarSegmentedControl](touch-bar-segmented-control.md) | [TouchBarSlider](touch-bar-slider.md) | [TouchBarSpacer](touch-bar-spacer.md))[] (optional)
   * `escapeItem` ([TouchBarButton](touch-bar-button.md) | [TouchBarColorPicker](touch-bar-color-picker.md) | [TouchBarGroup](touch-bar-group.md) | [TouchBarLabel](touch-bar-label.md) | [TouchBarPopover](touch-bar-popover.md) | [TouchBarScrubber](touch-bar-scrubber.md) | [TouchBarSegmentedControl](touch-bar-segmented-control.md) | [TouchBarSlider](touch-bar-slider.md) | [TouchBarSpacer](touch-bar-spacer.md) | null) (optional)
 
 Creates a new touch bar with the specified items. Use

docs/api/tray.md

@@ -161,7 +161,7 @@ Returns:
 
 Emitted when the mouse exits the tray icon.
 
-#### Event: 'mouse-move' _macOS_
+#### Event: 'mouse-move' _macOS_ _Windows_
 
 Returns:
 
@@ -206,37 +206,6 @@ Sets the title displayed next to the tray icon in the status bar (Support ANSI c
 
 Returns `String` - the title displayed next to the tray icon in the status bar
 
-#### `tray.setHighlightMode(mode)` _macOS_
-
-* `mode` String - Highlight mode with one of the following values:
-  * `selection` - Highlight the tray icon when it is clicked and also when
-    its context menu is open. This is the default.
-  * `always` - Always highlight the tray icon.
-  * `never` - Never highlight the tray icon.
-
-Sets when the tray's icon background becomes highlighted (in blue).
-
-**Note:** You can use `highlightMode` with a [`BrowserWindow`](browser-window.md)
-by toggling between `'never'` and `'always'` modes when the window visibility
-changes.
-
-```javascript
-const { BrowserWindow, Tray } = require('electron')
-
-const win = new BrowserWindow({ width: 800, height: 600 })
-const tray = new Tray('/path/to/my/icon')
-
-tray.on('click', () => {
-  win.isVisible() ? win.hide() : win.show()
-})
-win.on('show', () => {
-  tray.setHighlightMode('always')
-})
-win.on('hide', () => {
-  tray.setHighlightMode('never')
-})
-```
-
 #### `tray.setIgnoreDoubleClickEvents(ignore)` _macOS_
 
 * `ignore` Boolean

docs/api/web-contents.md

@@ -4,8 +4,7 @@
 
 Process: [Main](../glossary.md#main-process)
 
-`webContents` is an
-[EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter).
+`webContents` is an [EventEmitter][event-emitter].
 It is responsible for rendering and controlling a web page and is a property of
 the [`BrowserWindow`](browser-window.md) object. An example of accessing the
 `webContents` object:
@@ -144,7 +143,7 @@ Returns:
 * `frameName` String
 * `disposition` String - Can be `default`, `foreground-tab`, `background-tab`,
   `new-window`, `save-to-disk` and `other`.
-* `options` Object - The options which will be used for creating the new
+* `options` BrowserWindowConstructorOptions - The options which will be used for creating the new
   [`BrowserWindow`](browser-window.md).
 * `additionalFeatures` String[] - The non-standard features (features not handled
   by Chromium or Electron) given to `window.open()`.
@@ -455,10 +454,8 @@ The usage is the same with [the `select-client-certificate` event of
 Returns:
 
 * `event` Event
-* `request` Object
-  * `method` String
+* `authenticationResponseDetails` Object
   * `url` URL
-  * `referrer` URL
 * `authInfo` Object
   * `isProxy` Boolean
   * `scheme` String
@@ -482,7 +479,7 @@ Returns:
   * `requestId` Integer
   * `activeMatchOrdinal` Integer - Position of the active match.
   * `matches` Integer - Number of Matches.
-  * `selectionArea` Object - Coordinates of first match region.
+  * `selectionArea` Rectangle - Coordinates of first match region.
   * `finalUpdate` Boolean
 
 Emitted when a result is available for
@@ -670,10 +667,10 @@ Emitted when the devtools window instructs the webContents to reload
 Returns:
 
 * `event` Event
-* `webPreferences` Object - The web preferences that will be used by the guest
+* `webPreferences` WebPreferences - The web preferences that will be used by the guest
   page. This object can be modified to adjust the preferences for the guest
   page.
-* `params` Object - The other `<webview>` parameters such as the `src` URL.
+* `params` Record<string, string> - The other `<webview>` parameters such as the `src` URL.
   This object can be modified to adjust the parameters of the guest page.
 
 Emitted when a `<webview>`'s web contents is being attached to this web
@@ -843,7 +840,7 @@ webContents.loadURL('https://github.com', options)
 
 * `filePath` String
 * `options` Object (optional)
-  * `query` Object (optional) - Passed to `url.format()`.
+  * `query` Record<String, String> (optional) - Passed to `url.format()`.
   * `search` String (optional) - Passed to `url.format()`.
   * `hash` String (optional) - Passed to `url.format()`.
 
@@ -979,17 +976,21 @@ Returns `Boolean` - Whether the renderer process has crashed.
 
 Overrides the user agent for this web page.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.getUserAgent()`
 
 Returns `String` - The user agent for this web page.
 
-#### `contents.insertCSS(css)`
+**[Deprecated](modernization/property-updates.md)**
+
+#### `contents.insertCSS(css[, options])`
 
 * `css` String
+* `options` Object (optional)
+  * `cssOrigin` String (optional) - Can be either 'user' or 'author'; Specifying 'user' enables you to prevent websites from overriding the CSS you insert. Default is 'author'.
 
-Returns `Promise<String>` - A promise that resolves with a key for the inserted
-CSS that can later be used to remove the CSS via
-`contents.removeInsertedCSS(key)`.
+Returns `Promise<String>` - A promise that resolves with a key for the inserted CSS that can later be used to remove the CSS via `contents.removeInsertedCSS(key)`.
 
 Injects CSS into the current web page and returns a unique key for the inserted
 stylesheet.
@@ -1030,6 +1031,8 @@ In the browser window some HTML APIs like `requestFullScreen` can only be
 invoked by a gesture from the user. Setting `userGesture` to `true` will remove
 this limitation.
 
+Code execution will be suspended until web page stop loading.
+
 ```js
 contents.executeJavaScript('fetch("https://jsonplaceholder.typicode.com/users/1").then(resp => resp.json())', true)
   .then((result) => {
@@ -1049,10 +1052,14 @@ Ignore application menu shortcuts while this web contents is focused.
 
 Mute the audio on the current web page.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.isAudioMuted()`
 
 Returns `Boolean` - Whether this page has been muted.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.isCurrentlyAudible()`
 
 Returns `Boolean` - Whether audio is currently playing.
@@ -1064,10 +1071,14 @@ Returns `Boolean` - Whether audio is currently playing.
 Changes the zoom factor to the specified factor. Zoom factor is
 zoom percent divided by 100, so 300% = 3.0.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.getZoomFactor()`
 
 Returns `Number` - the current zoom factor.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.setZoomLevel(level)`
 
 * `level` Number - Zoom level.
@@ -1077,10 +1088,14 @@ increment above or below represents zooming 20% larger or smaller to default
 limits of 300% and 50% of original size, respectively. The formula for this is
 `scale := 1.2 ^ level`.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.getZoomLevel()`
 
 Returns `Number` - the current zoom level.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.setVisualZoomLevelLimits(minimumLevel, maximumLevel)`
 
 * `minimumLevel` Number
@@ -1252,11 +1267,7 @@ Returns [`PrinterInfo[]`](structures/printer-info.md).
   * `failureReason` String - Called back if the print fails; can be `cancelled` or `failed`.
 
 Prints window's web page. When `silent` is set to `true`, Electron will pick
-the system's default printer if `deviceName` is empty and the default settings
-for printing.
-
-Calling `window.print()` in web page is equivalent to calling
-`webContents.print({ silent: false, printBackground: false, deviceName: '' })`.
+the system's default printer if `deviceName` is empty and the default settings for printing.
 
 Use `page-break-before: always;` CSS style to force to print to a new page.
 
@@ -1543,49 +1554,14 @@ Enable device emulation with the given parameters.
 
 Disable device emulation enabled by `webContents.enableDeviceEmulation`.
 
-#### `contents.sendInputEvent(event)`
+#### `contents.sendInputEvent(inputEvent)`
 
-* `event` Object
-  * `type` String (**required**) - The type of the event, can be `mouseDown`,
-    `mouseUp`, `mouseEnter`, `mouseLeave`, `contextMenu`, `mouseWheel`,
-    `mouseMove`, `keyDown`, `keyUp` or `char`.
-  * `modifiers` String[] - An array of modifiers of the event, can
-    include `shift`, `control`, `alt`, `meta`, `isKeypad`, `isAutoRepeat`,
-    `leftButtonDown`, `middleButtonDown`, `rightButtonDown`, `capsLock`,
-    `numLock`, `left`, `right`.
+* `inputEvent` [MouseInputEvent](structures/mouse-input-event.md) | [MouseWheelInputEvent](structures/mouse-wheel-input-event.md) | [KeyboardInputEvent](structures/keyboard-input-event.md)
 
 Sends an input `event` to the page.
 **Note:** The [`BrowserWindow`](browser-window.md) containing the contents needs to be focused for
 `sendInputEvent()` to work.
 
-For keyboard events, the `event` object also have following properties:
-
-* `keyCode` String (**required**) - The character that will be sent
-  as the keyboard event. Should only use the valid key codes in
-  [Accelerator](accelerator.md).
-
-For mouse events, the `event` object also have following properties:
-
-* `x` Integer (**required**)
-* `y` Integer (**required**)
-* `button` String - The button pressed, can be `left`, `middle`, `right`.
-* `globalX` Integer
-* `globalY` Integer
-* `movementX` Integer
-* `movementY` Integer
-* `clickCount` Integer
-
-For the `mouseWheel` event, the `event` object also have following properties:
-
-* `deltaX` Integer
-* `deltaY` Integer
-* `wheelTicksX` Integer
-* `wheelTicksY` Integer
-* `accelerationRatioX` Integer
-* `accelerationRatioY` Integer
-* `hasPreciseScrollingDeltas` Boolean
-* `canScroll` Boolean
-
 #### `contents.beginFrameSubscription([onlyDirty ,]callback)`
 
 * `onlyDirty` Boolean (optional) - Defaults to `false`.
@@ -1672,10 +1648,14 @@ Returns `Boolean` - If *offscreen rendering* is enabled returns whether it is cu
 If *offscreen rendering* is enabled sets the frame rate to the specified number.
 Only values between 1 and 60 are accepted.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.getFrameRate()`
 
 Returns `Integer` - If *offscreen rendering* is enabled returns the current frame rate.
 
+**[Deprecated](modernization/property-updates.md)**
+
 #### `contents.invalidate()`
 
 Schedules a full repaint of the window this web contents is in.
@@ -1740,27 +1720,55 @@ Returns `String` - the type of the webContent. Can be `backgroundPage`, `window`
 
 ### Instance Properties
 
-#### `contents.id`
+#### `contents.audioMuted`
+
+A `Boolean` property that determines whether this page is muted.
+
+#### `contents.userAgent`
+
+A `String` property that determines the user agent for this web page.
+
+#### `contents.zoomLevel`
+
+A `Number` property that determines the zoom level for this web contents.
+
+The original size is 0 and each increment above or below represents zooming 20% larger or smaller to default limits of 300% and 50% of original size, respectively. The formula for this is `scale := 1.2 ^ level`.
+
+#### `contents.zoomFactor`
+
+A `Number` property that determines the zoom factor for this web contents.
+
+The zoom factor is the zoom percent divided by 100, so 300% = 3.0.
+
+#### `contents.frameRate`
+
+An `Integer` property that sets the frame rate of the web contents to the specified number.
+Only values between 1 and 60 are accepted.
+
+Only applicable if *offscreen rendering* is enabled.
+
+#### `contents.id` _Readonly_
 
 A `Integer` representing the unique ID of this WebContents.
 
-#### `contents.session`
+#### `contents.session` _Readonly_
 
 A [`Session`](session.md) used by this webContents.
 
-#### `contents.hostWebContents`
+#### `contents.hostWebContents` _Readonly_
 
 A [`WebContents`](web-contents.md) instance that might own this `WebContents`.
 
-#### `contents.devToolsWebContents`
+#### `contents.devToolsWebContents` _Readonly_
 
 A `WebContents` of DevTools for this `WebContents`.
 
 **Note:** Users should never store this object because it may become `null`
 when the DevTools has been closed.
 
-#### `contents.debugger`
+#### `contents.debugger` _Readonly_
 
 A [`Debugger`](debugger.md) instance for this webContents.
 
 [keyboardevent]: https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent
+[event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter

docs/api/web-frame.md

@@ -228,35 +228,35 @@ Returns `WebFrame` - that has the supplied `routingId`, `null` if not found.
 
 ## Properties
 
-### `webFrame.top`
+### `webFrame.top` _Readonly_
 
-A `WebFrame` representing top frame in frame hierarchy to which `webFrame`
+A `WebFrame | null` representing top frame in frame hierarchy to which `webFrame`
 belongs, the property would be `null` if top frame is not in the current
 renderer process.
 
-### `webFrame.opener`
+### `webFrame.opener` _Readonly_
 
-A `WebFrame` representing the frame which opened `webFrame`, the property would
+A `WebFrame | null` representing the frame which opened `webFrame`, the property would
 be `null` if there's no opener or opener is not in the current renderer process.
 
-### `webFrame.parent`
+### `webFrame.parent` _Readonly_
 
-A `WebFrame` representing parent frame of `webFrame`, the property would be
+A `WebFrame | null` representing parent frame of `webFrame`, the property would be
 `null` if `webFrame` is top or parent is not in the current renderer process.
 
-### `webFrame.firstChild`
+### `webFrame.firstChild` _Readonly_
 
-A `WebFrame` representing the first child frame of `webFrame`, the property
+A `WebFrame | null` representing the first child frame of `webFrame`, the property
 would be `null` if `webFrame` has no children or if first child is not in the
 current renderer process.
 
-### `webFrame.nextSibling`
+### `webFrame.nextSibling` _Readonly_
 
-A `WebFrame` representing next sibling frame, the property would be `null` if
+A `WebFrame | null` representing next sibling frame, the property would be `null` if
 `webFrame` is the last frame in its parent or if the next sibling is not in the
 current renderer process.
 
-### `webFrame.routingId`
+### `webFrame.routingId` _Readonly_
 
 An `Integer` representing the unique frame id in the current renderer process.
 Distinct WebFrame instances that refer to the same underlying frame will have

docs/api/web-request.md

@@ -68,6 +68,21 @@ The `uploadData` is an array of `UploadData` objects.
 
 The `callback` has to be called with an `response` object.
 
+Some examples of valid `urls`:
+
+```js
+'http://foo:1234/'
+'http://foo.com/'
+'http://foo:1234/bar'
+'*://*/*'
+'*://example.com/*'
+'*://example.com/foo/*'
+'http://*.foo:1234/'
+'file://foo:1234/bar'
+'http://foo:*/'
+'*://www.foo.com/'
+```
+
 #### `webRequest.onBeforeSendHeaders([filter, ]listener)`
 
 * `filter` Object (optional)
@@ -84,16 +99,16 @@ The `callback` has to be called with an `response` object.
     * `timestamp` Double
     * `requestHeaders` Record<string, string>
   * `callback` Function
-    * `response` Object
+    * `beforeSendResponse` Object
       * `cancel` Boolean (optional)
-      * `requestHeaders` Record<string, string> (optional) - When provided, request will be made
+      * `requestHeaders` Record<string, string | string[]> (optional) - When provided, request will be made
   with these headers.
 
 The `listener` will be called with `listener(details, callback)` before sending
 an HTTP request, once the request headers are available. This may occur after a
 TCP connection is made to the server, but before any http data is sent.
 
-The `callback` has to be called with an `response` object.
+The `callback` has to be called with a `response` object.
 
 #### `webRequest.onSendHeaders([filter, ]listener)`
 
@@ -133,9 +148,9 @@ response are visible by the time this listener is fired.
     * `statusCode` Integer
     * `responseHeaders` Record<string, string> (optional)
   * `callback` Function
-    * `response` Object
+    * `headersReceivedResponse` Object
       * `cancel` Boolean (optional)
-      * `responseHeaders` Record<string, string> (optional) - When provided, the server is assumed
+      * `responseHeaders` Record<string, string | string[]> (optional) - When provided, the server is assumed
         to have responded with these headers.
       * `statusLine` String (optional) - Should be provided when overriding
         `responseHeaders` to change header status otherwise original response
@@ -144,7 +159,7 @@ response are visible by the time this listener is fired.
 The `listener` will be called with `listener(details, callback)` when HTTP
 response headers of a request have been received.
 
-The `callback` has to be called with an `response` object.
+The `callback` has to be called with a `response` object.
 
 #### `webRequest.onResponseStarted([filter, ]listener)`
 
@@ -186,6 +201,7 @@ and response headers are available.
     * `timestamp` Double
     * `redirectURL` String
     * `statusCode` Integer
+    * `statusLine` String
     * `ip` String (optional) - The server IP address that the request was
       actually sent to.
     * `fromCache` Boolean

docs/api/webview-tag.md

@@ -162,7 +162,7 @@ When the guest page doesn't have node integration this script will still have
 access to all Node APIs, but global objects injected by Node will be deleted
 after this script has finished executing.
 
-**Note:** This option will be appear as `preloadURL` (not `preload`) in
+**Note:** This option will appear as `preloadURL` (not `preload`) in
 the `webPreferences` specified to the `will-attach-webview` event.
 
 ### `httpreferrer`
@@ -277,6 +277,11 @@ webview.addEventListener('dom-ready', () => {
   * `postData` ([UploadRawData[]](structures/upload-raw-data.md) | [UploadFile[]](structures/upload-file.md) | [UploadBlob[]](structures/upload-blob.md)) (optional)
   * `baseURLForDataURL` String (optional) - Base url (with trailing path separator) for files to be loaded by the data url. This is needed only if the specified `url` is a data url and needs to load other files.
 
+Returns `Promise<void>` - The promise will resolve when the page has finished loading
+(see [`did-finish-load`](webview-tag.md#event-did-finish-load)), and rejects
+if the page fails to load (see
+[`did-fail-load`](webview-tag.md#event-did-fail-load)).
+
 Loads the `url` in the webview, the `url` must contain the protocol prefix,
 e.g. the `http://` or `file://`.
 
@@ -588,13 +593,13 @@ examples.
 
 ### `<webview>.sendInputEvent(event)`
 
-* `event` Object
+* `event`  [MouseInputEvent](structures/mouse-input-event.md) | [MouseWheelInputEvent](structures/mouse-wheel-input-event.md) | [KeyboardInputEvent](structures/keyboard-input-event.md)
 
 Returns `Promise<void>`
 
 Sends an input `event` to the page.
 
-See [webContents.sendInputEvent](web-contents.md#contentssendinputeventevent)
+See [webContents.sendInputEvent](web-contents.md#contentssendinputeventinputevent)
 for detailed description of `event` object.
 
 ### `<webview>.setZoomFactor(factor)`
@@ -762,7 +767,7 @@ Returns:
   * `requestId` Integer
   * `activeMatchOrdinal` Integer - Position of the active match.
   * `matches` Integer - Number of Matches.
-  * `selectionArea` Object - Coordinates of first match region.
+  * `selectionArea` Rectangle - Coordinates of first match region.
   * `finalUpdate` Boolean
 
 Fired when a result is available for
@@ -786,7 +791,7 @@ Returns:
 * `frameName` String
 * `disposition` String - Can be `default`, `foreground-tab`, `background-tab`,
   `new-window`, `save-to-disk` and `other`.
-* `options` Object - The options which should be used for creating the new
+* `options` BrowserWindowConstructorOptions - The options which should be used for creating the new
   [`BrowserWindow`](browser-window.md).
 
 Fired when the guest page attempts to open a new browser window.
@@ -867,7 +872,7 @@ webview.addEventListener('close', () => {
 Returns:
 
 * `channel` String
-* `args` Array
+* `args` any[]
 
 Fired when the guest page has sent an asynchronous message to embedder page.
 

docs/development/build-instructions-gn.md

@@ -38,16 +38,6 @@ $ mkdir -p "${GIT_CACHE_PATH}"
 # This will use about 16G.
 ```
 
-> **NOTE**: the git cache will set the `origin` of the `src/electron`
-> repository to point to the local cache, instead of the upstream git
-> repository. This is undesirable when running `git push`—you probably want to
-> push to github, not your local cache. To fix this, from the `src/electron`
-> directory, run:
-
-```sh
-$ git remote set-url origin https://github.com/electron/electron
-```
-
 ### sccache
 
 Thousands of files must be compiled to build Chromium and Electron.
@@ -56,7 +46,7 @@ You can avoid much of the wait by reusing Electron CI's build output via
 optional steps (listed below) and these two environment variables:
 
 ```sh
-export SCCACHE_BUCKET="electronjs-sccache"
+export SCCACHE_BUCKET="electronjs-sccache-ci"
 export SCCACHE_TWO_TIER=true
 ```
 
@@ -275,6 +265,12 @@ HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Lanmanworkstation\Parameter
 
 to 0. More information: https://stackoverflow.com/a/9935126
 
+This can be set quickly in powershell (ran as administrator):
+
+```powershell
+New-ItemProperty -Path "HKLM:\System\CurrentControlSet\Services\Lanmanworkstation\Parameters" -Name DirectoryCacheLifetime -Value 0 -PropertyType DWORD -Force
+```
+
 ## Troubleshooting
 
 ### Stale locks in the git cache

docs/development/build-instructions-linux.md

@@ -12,7 +12,7 @@ Follow the guidelines below for building Electron on Linux.
   For a quick test, run the following script:
 
   ```sh
-  $ npm run check-tls
+  $ npx @electron/check-python-tls
   ```
 
   If the script returns that your configuration is using an outdated security
@@ -31,7 +31,7 @@ On Ubuntu, install the following libraries:
 
 ```sh
 $ sudo apt-get install build-essential clang libdbus-1-dev libgtk-3-dev \
-                       libnotify-dev libgnome-keyring-dev libgconf2-dev \
+                       libnotify-dev libgnome-keyring-dev \
                        libasound2-dev libcap-dev libcups2-dev libxtst-dev \
                        libxss1 libnss3-dev gcc-multilib g++-multilib curl \
                        gperf bison python-dbusmock openjdk-8-jre
@@ -43,7 +43,7 @@ On RHEL / CentOS, install the following libraries:
 $ sudo yum install clang dbus-devel gtk3-devel libnotify-devel \
                    libgnome-keyring-devel xorg-x11-server-utils libcap-devel \
                    cups-devel libXtst-devel alsa-lib-devel libXrandr-devel \
-                   GConf2-devel nss-devel python-dbusmock openjdk-8-jre
+                   nss-devel python-dbusmock openjdk-8-jre
 ```
 
 On Fedora, install the following libraries:
@@ -52,7 +52,7 @@ On Fedora, install the following libraries:
 $ sudo dnf install clang dbus-devel gtk3-devel libnotify-devel \
                    libgnome-keyring-devel xorg-x11-server-utils libcap-devel \
                    cups-devel libXtst-devel alsa-lib-devel libXrandr-devel \
-                   GConf2-devel nss-devel python-dbusmock openjdk-8-jre
+                   nss-devel python-dbusmock openjdk-8-jre
 ```
 
 Other distributions may offer similar packages for installation via package

docs/development/build-instructions-macos.md

@@ -15,7 +15,7 @@ Please also ensure that your system and Python version support at least TLS 1.2.
 This depends on both your version of macOS and Python. For a quick test, run:
 
 ```sh
-$ npm run check-tls
+$ npx @electron/check-python-tls
 ```
 
 If the script returns that your configuration is using an outdated security

docs/development/testing.md

@@ -42,3 +42,9 @@ you would like to run. As an example: If you want to run only IPC tests, you
 would run `npm run test -- -g ipc`.
 
 [standard-addons]: https://standardjs.com/#are-there-text-editor-plugins
+
+### Testing on Windows 10 devices
+[Some Windows 10 devices](https://docs.microsoft.com/en-us/typography/fonts/windows_10_font_list) do not ship with the Meiryo font installed, which may cause a font fallback test to fail. To install Meiryo:
+1. Push the Windows key and search for _Manage optional features_.
+1. Click _Add a feature_.
+1. Select _Japanese Supplemental Fonts_ and click _Install_.

docs/fiddles/screen/fit-screen/main.js

@@ -0,0 +1,20 @@
+// Retrieve information about screen size, displays, cursor position, etc.
+//
+// For more info, see:
+// https://electronjs.org/docs/api/screen
+
+const { app, BrowserWindow } = require('electron')
+
+let mainWindow = null
+
+app.on('ready', () => {
+  // We cannot require the screen module until the app is ready.
+  const { screen } = require('electron')
+
+  // Create a window that fills the screen's available work area.
+  const primaryDisplay = screen.getPrimaryDisplay()
+  const { width, height } = primaryDisplay.workAreaSize
+
+  mainWindow = new BrowserWindow({ width, height })
+  mainWindow.loadURL('https://electronjs.org')
+})

docs/styleguide.md

@@ -116,7 +116,7 @@ Using the `Session` and `Cookies` classes as an example:
 
 ### session.fromPartition(partition)
 
-## Properties
+## Static Properties
 
 ### session.defaultSession
 

docs/tutorial/application-distribution.md

@@ -4,7 +4,7 @@ To distribute your app with Electron, you need to package and rebrand it. The ea
 
 * [electron-forge](https://github.com/electron-userland/electron-forge)
 * [electron-builder](https://github.com/electron-userland/electron-builder)
-* [electron-packager](https://github.com/electron-userland/electron-packager)
+* [electron-packager](https://github.com/electron/electron-packager)
 
 These tools will take care of all the steps you need to take to end up with a distributable Electron applications, such as packaging your application, rebranding the executable, setting the right icons and optionally creating installers.
 
@@ -20,7 +20,7 @@ below.
 
 On macOS:
 
-```text
+```plaintext
 electron/Electron.app/Contents/Resources/app/
 ├── package.json
 ├── main.js
@@ -29,7 +29,7 @@ electron/Electron.app/Contents/Resources/app/
 
 On Windows and Linux:
 
-```text
+```plaintext
 electron/resources/app
 ├── package.json
 ├── main.js
@@ -52,14 +52,14 @@ below, and Electron will then try to read the archive and start from it.
 
 On macOS:
 
-```text
+```plaintext
 electron/Electron.app/Contents/Resources/
 └── app.asar
 ```
 
 On Windows and Linux:
 
-```text
+```plaintext
 electron/resources/
 └── app.asar
 ```
@@ -91,7 +91,7 @@ file's name.
 
 The structure of a renamed app would be like:
 
-```text
+```plaintext
 MyApp.app/Contents
 ├── Info.plist
 ├── MacOS/

docs/tutorial/application-packaging.md

@@ -189,7 +189,7 @@ was created together with the `app.asar` file. It contains the unpacked files
 and should be shipped together with the `app.asar` archive.
 
 [asar]: https://github.com/electron/asar
-[electron-packager]: https://github.com/electron-userland/electron-packager
+[electron-packager]: https://github.com/electron/electron-packager
 [electron-forge]: https://github.com/electron-userland/electron-forge
 [electron-builder]: https://github.com/electron-userland/electron-builder
 

docs/tutorial/boilerplates-and-clis.md

@@ -33,7 +33,7 @@ development.
 
 Forge comes with [ready-to-use templates](https://electronforge.io/templates) for popular
 frameworks like React, Vue, or Angular. It uses the same core modules used by the
-greater Electron community (like [`electron-packager`](https://github.com/electron-userland/electron-packager)) – 
+greater Electron community (like [`electron-packager`](https://github.com/electron/electron-packager)) – 
 changes made by Electron maintainers (like Slack) benefit Forge's users, too.
 
 You can find more information and documentation on [electronforge.io](https://electronforge.io/).

docs/tutorial/code-signing.md

@@ -69,7 +69,7 @@ See the [Windows Store Guide].
 [`electron-builder`]: https://github.com/electron-userland/electron-builder
 [`electron-forge`]: https://github.com/electron-userland/electron-forge
 [`electron-osx-sign`]: https://github.com/electron-userland/electron-osx-sign
-[`electron-packager`]: https://github.com/electron-userland/electron-packager
+[`electron-packager`]: https://github.com/electron/electron-packager
 [`electron-winstaller`]: https://github.com/electron/windows-installer
 [Xcode]: https://developer.apple.com/xcode
 [signing certificates]: https://github.com/electron-userland/electron-osx-sign/wiki/1.-Getting-Started#certificates

docs/tutorial/electron-timelines.md

@@ -1,54 +1,16 @@
 # Electron Release Timelines
 
-### Notes
-
-* The `-beta.1` and `stable` dates are our *concrete* release dates.
+* The `-beta.1` and `stable` dates are our solid release dates.
 * We strive for weekly beta releases, however we often release more betas than scheduled.
 * All dates are our goals but there may be reasons for adjusting the stable deadline, such as security bugs.
+* Take a look at the [5.0.0 Timeline blog post](https://electronjs.org/blog/electron-5-0-timeline) for info about publicizing our release dates.
 
-## 5.0.0 Release Schedule
-
-*Includes: Chromium M73 and Node v12.0*
-
-Take a look at 5.0.0 Timeline [blog post](https://electronjs.org/blog/electron-5-0-timeline) for info about publicizing our release dates.
-
-| Date/Week Of    | Release      | Comments       |
-| --------------- | ------------ | -------------- |
-| Tue, 2019-Jan-22 | 5.0.0-beta.1 |🔥 |
-| Tue, 2019-Jan-29 | 5.0.0-beta.x ||
-| Tue, 2019-Feb-05 | 5.0.0-beta.x |Last Date to Join [AFP](https://electronjs.org/blog/app-feedback-program)|
-| Tue, 2019-Feb-12 | 5.0.0-beta.x ||
-| Tue, 2019-Feb-19 | none | Maintainers Summit |
-| Tue, 2019-Feb-26 | 5.0.0-beta.x ||
-| Tue, 2019-Mar-05 | 5.0.0-beta.x | halfway mark |
-| Tue, 2019-Mar-12 | 5.0.0-beta.x ||
-| Tue, 2019-Mar-19 | 5.0.0-beta.x ||
-| Tue, 2019-Mar-26 | 5.0.0-beta.x ||
-| Tue, 2019-Apr-02 | 5.0.0-beta.x ||
-| Tue, 2019-Apr-09 | 5.0.0-beta.x ||
-| Tue, 2019-Apr-16 | none | quiet period - stable prep |
-| Tue, 2019-Apr-23 | 5.0.0 |✨stable ✨|
-
-## 6.0.0 Release Schedule
-*Includes: Chromium M76 and Node v12.0*
-
-| Date/Week Of    | Release      | Comments       |
-| --------------- | ------------ | -------------- |
-| Tue, 2019-Apr-30 | 6.0.0-beta.1 | 🔥 |
-| Tue, 2019-May-07 | 6.0.0-beta.x | |
-| Tue, 2019-May-14 | 6.0.0-beta.x | |
-| Tue, 2019-May-21 | 6.0.0-beta.x | |
-| Tue, 2019-May-28 | 6.0.0-beta.x | |
-| Tue, 2019-Jun-04 | 6.0.0-beta.x | |
-| Tue, 2019-Jun-11 | 6.0.0-beta.x | halfway mark |
-| Tue, 2019-Jun-18 | 6.0.0-beta.x | |
-| Tue, 2019-Jun-25 | 6.0.0-beta.x | |
-| Tue, 2019-Jul-02 | 6.0.0-beta.x | |
-| Tue, 2019-Jul-09 | 6.0.0-beta.x | |
-| Tue, 2019-Jul-16 | 6.0.0-beta.x | |
-| Tue, 2019-Jul-23 | 6.0.0-beta.x | 🚧 quiet period - stable prep 🚧 |
-| Tue, 2019-Jul-30 | 6.0.0 | ✨ stable ✨ |
-
-## 7.0.0 Release Schedule
-
-TBD
+| Version | -beta.1 | Stable | Chrome | Node |
+| ------- | ------- | ------ | ------ | ---- |
+| 2.0.0 | 2018-02-21 | 2018-05-01 | M61 | v8 |
+| 3.0.0 | 2018-06-21 | 2018-09-18 | M66 | v10 |
+| 4.0.0 | 2018-10-11 | 2018-12-20 | M69 | v10 |
+| 5.0.0 | 2019-01-22 | 2019-04-24 | M73 | v12 |
+| 6.0.0 | 2019-05-01 | 2019-07-30 | M76 | v12 |
+| 7.0.0 | 2019-08-01 | 2019-10-22 | M78 | v12 |
+| 8.0.0 | TBD | TBD | TBD | TBD |

docs/tutorial/electron-versioning.md

@@ -93,7 +93,7 @@ Specifically, the above means:
 
 For each major and minor bump, you should expect to see something like the following:
 
-```text
+```plaintext
 2.0.0-beta.1
 2.0.0-beta.2
 2.0.0-beta.3

docs/tutorial/first-app.md

@@ -17,7 +17,7 @@ Node.js application. The starting point is a `package.json` that is identical
 to that of a Node.js module. A most basic Electron app would have the following
 folder structure:
 
-```text
+```plaintext
 your-app/
 ├── package.json
 ├── main.js

docs/tutorial/installation.md

@@ -38,11 +38,15 @@ npm install --platform=win32 electron
 
 ## Proxies
 
-If you need to use an HTTP proxy you can [set these environment variables][proxy-env].
+If you need to use an HTTP proxy, you need to set the `ELECTRON_GET_USE_PROXY` variable to any
+value, plus additional environment variables depending on your host system's Node version:
+
+* [Node 10 and above][proxy-env-10]
+* [Before Node 10][proxy-env]
 
 ## Custom Mirrors and Caches
 During installation, the `electron` module will call out to
-[`electron-download`][electron-download] to download prebuilt binaries of
+[`@electron/get`][electron-get] to download prebuilt binaries of
 Electron for your platform. It will do so by contacting GitHub's
 release download page (`https://github.com/electron/electron/releases/tag/v$VERSION`,
 where `$VERSION` is the exact version of Electron).
@@ -55,13 +59,13 @@ You can use environment variables to override the base URL, the path at which to
 look for Electron binaries, and the binary filename. The url used by `electron-download`
 is composed as follows:
 
-```txt
+```plaintext
 url = ELECTRON_MIRROR + ELECTRON_CUSTOM_DIR + '/' + ELECTRON_CUSTOM_FILENAME
 ```
 
 For instance, to use the China mirror:
 
-```txt
+```plaintext
 ELECTRON_MIRROR="https://npm.taobao.org/mirrors/electron/"
 ```
 
@@ -146,7 +150,8 @@ If you need to force a re-download of the asset and the SHASUM file set the
 [npm]: https://docs.npmjs.com
 [versioning]: ./electron-versioning.md
 [releases]: https://github.com/electron/electron/releases
-[proxy-env]: https://github.com/request/request/tree/f0c4ec061141051988d1216c24936ad2e7d5c45d#controlling-proxy-behaviour-using-environment-variables
-[electron-download]: https://github.com/electron-userland/electron-download
+[proxy-env-10]: https://github.com/gajus/global-agent/blob/v2.1.5/README.md#environment-variables
+[proxy-env]: https://github.com/np-maintain/global-tunnel/blob/v2.7.1/README.md#auto-config
+[electron-get]: https://github.com/electron/get
 [npm-permissions]: https://docs.npmjs.com/getting-started/fixing-npm-permissions
 [unsafe-perm]: https://docs.npmjs.com/misc/config#unsafe-perm

docs/tutorial/linux-desktop-actions.md

@@ -13,7 +13,7 @@ Generally speaking, shortcuts are added by providing a `Name` and `Exec`
 property for each entry in the shortcuts menu. Unity will execute the
 `Exec` field once clicked by the user. The format is as follows:
 
-```text
+```plaintext
 Actions=PlayPause;Next;Previous
 
 [Desktop Action PlayPause]

docs/tutorial/mac-app-store-submission-guide.md

@@ -266,7 +266,7 @@ Electron uses following cryptographic algorithms:
 [enable-app-sandbox]: https://developer.apple.com/library/ios/documentation/Miscellaneous/Reference/EntitlementKeyReference/Chapters/EnablingAppSandbox.html
 [create-record]: https://developer.apple.com/library/ios/documentation/LanguagesUtilities/Conceptual/iTunesConnect_Guide/Chapters/CreatingiTunesConnectRecord.html
 [electron-osx-sign]: https://github.com/electron-userland/electron-osx-sign
-[electron-packager]: https://github.com/electron-userland/electron-packager
+[electron-packager]: https://github.com/electron/electron-packager
 [submit-for-review]: https://developer.apple.com/library/ios/documentation/LanguagesUtilities/Conceptual/iTunesConnect_Guide/Chapters/SubmittingTheApp.html
 [app-sandboxing]: https://developer.apple.com/app-sandboxing/
 [export-compliance]: https://help.apple.com/app-store-connect/#/devc3f64248f

docs/tutorial/mojave-dark-mode-guide.md

@@ -1,35 +1,19 @@
 # Mojave Dark Mode
 
 In macOS 10.14 Mojave, Apple introduced a new [system-wide dark mode](https://developer.apple.com/design/human-interface-guidelines/macos/visual-design/dark-mode/)
-for all macOS computers.  By default Electron apps do not automatically adjust their UI and native interfaces
-to the dark mode setting when it's enabled. This is primarily due to Apple's own guidelines saying you **shouldn't**
-use the dark mode native interfaces if your app's own interfaces don't support dark mode themselves.
+for all macOS computers.  If your app does have a dark mode, you can make your Electron app
+follow the system-wide dark mode setting.
 
-If your app does have a dark mode, you can make your Electron app follow the system-wide dark mode setting.
+In macOS 10.15 Catalina, Apple introduced a new "automatic" dark mode option for all macOS computers. In order
+for the `isDarkMode` and `Tray` APIs to work correctly in this mode on Catalina you need to either have `NSRequiresAquaSystemAppearance` set to `false` in your `Info.plist` file or be on Electron `>=7.0.0`.
 
 ## Automatically updating the native interfaces
 
 "Native Interfaces" include the file picker, window border, dialogs, context menus and more; basically anything where
-the UI comes from macOS and not your app.  In order to make these interfaces update to dark mode automatically, you need
-to set the `NSRequiresAquaSystemAppearance` key in your app's `Info.plist` file to `false`.  E.g.
-
-```xml
-<plist>
-<dict>
-  ...
-  <key>NSRequiresAquaSystemAppearance</key>
-  <false />
-  ...
-</dict>
-</plist>
-```
-
-If you are using [`electron-packager` >= 12.2.0](https://github.com/electron-userland/electron-packager) or
-[`electron-forge` >= 6](https://github.com/electron-userland/electron-forge) you can set the
-[`darwinDarkModeSupport`](https://github.com/electron-userland/electron-packager/blob/master/docs/api.md#darwindarkmodesupport)
-option when packaging and this key will be set for you.
-
-If you are using [`electron-builder` >= 20.37.0](https://github.com/electron-userland/electron-builder) you can set the [`darkModeSupport`](https://www.electron.build/configuration/mac.html) option.
+the UI comes from macOS and not your app.  The default behavior as of Electron 7.0.0 is to opt in to this automatic
+theming from the OS.  If you wish to opt out you must set the `NSRequiresAquaSystemAppearance` key in the `Info.plist` file
+to `true`.  Please note that once Electron starts building against the 10.14 SDK it will not be possible for you to opt
+out of this theming.
 
 ## Automatically updating your own interfaces
 

docs/tutorial/performance.md

@@ -0,0 +1,431 @@
+# Performance
+
+Developers frequently ask about strategies to optimize the performance of
+Electron applications. Software engineers, consumers, and framework developers
+do not always agree on one single definition of what "performance" means. This
+document outlines some of the Electron maintainers' favorite ways to reduce the
+amount of memory, CPU, and disk resources being used while ensuring that your
+app is responsive to user input and completes operations as quickly as
+possible. Furthermore, we want all performance strategies to maintain a high
+standard for your app's security.
+
+Wisdom and information about how to build performant websites with JavaScript
+generally applies to Electron apps, too. To a certain extent, resources
+discussing how to build performant Node.js applications also apply, but be
+careful to understand that the term "performance" means different things for
+a Node.js backend than it does for an application running on a client.
+
+This list is provided for your convenience – and is, much like our
+[security checklist][security] – not meant to exhaustive. It is probably possible
+to build a slow Electron app that follows all the steps outlined below. Electron
+is a powerful development platform that enables you, the developer, to do more
+or less whatever you want. All that freedom means that performance is largely
+your responsibility.
+
+## Measure, Measure, Measure
+
+The list below contains a number of steps that are fairly straightforward and
+easy to implement. However, building the most performant version of your app
+will require you to go beyond a number of steps. Instead, you will have to
+closely examine all the code running in your app by carefully profiling and
+measuring. Where are the bottlenecks? When the user clicks a button, what
+operations take up the brunt of the time? While the app is simply idling, which
+objects take up the most memory?
+
+Time and time again, we have seen that the most successful strategy for building
+a performant Electron app is to profile the running code, find the most
+resource-hungry piece of it, and to optimize it. Repeating this seemingly
+laborious process over and over again will dramatically increase your app's
+performance. Experience from working with major apps like Visual Studio Code or
+Slack has shown that this practice is by far the most reliable strategy to
+improve performance.
+
+To learn more about how to profile your app's code, familiarize yourself with
+the Chrome Developer Tools. For advanced analysis looking at multiple processes
+at once, consider the [Chrome Tracing] tool.
+
+### Recommended Reading
+
+ * [Get Started With Analyzing Runtime Performance][chrome-devtools-tutorial]
+ * [Talk: "Visual Studio Code - The First Second"][vscode-first-second]
+
+## Checklist
+
+Chances are that your app could be a little leaner, faster, and generally less
+resource-hungry if you attempt these steps.
+
+1. [Carelessly including modules](#1-carelessly-including-modules)
+2. [Loading and running code too soon](#2-loading-and-running-code-too-soon)
+3. [Blocking the main process](#3-blocking-the-main-process)
+4. [Blocking the renderer process](#4-blocking-the-renderer-process)
+5. [Unnecessary polyfills](#5-unnecessary-polyfills)
+6. [Unnecessary or blocking network requests](#6-unnecessary-or-blocking-network-requests)
+7. [Bundle your code](#7-bundle-your-code)
+
+## 1) Carelessly including modules
+
+Before adding a Node.js module to your application, examine said module. How
+many dependencies does that module include? What kind of resources does
+it need to simply be called in a `require()` statement? You might find
+that the module with the most downloads on the NPM package registry or the most stars on GitHub
+is not in fact the leanest or smallest one available.
+
+### Why?
+
+The reasoning behind this recommendation is best illustrated with a real-world
+example. During the early days of Electron, reliable detection of network
+connectivity was a problem, resulting many apps to use a module that exposed a
+simple `isOnline()` method.
+
+That module detected your network connectivity by attempting to reach out to a
+number of well-known endpoints. For the list of those endpoints, it depended on
+a different module, which also contained a list of well-known ports. This
+dependency itself relied on a module containing information about ports, which
+came in the form of a JSON file with more than 100,000 lines of content.
+Whenever the module was loaded (usually in a `require('module')` statement),
+it would load all its dependencies and eventually read and parse this JSON
+file. Parsing many thousands lines of JSON is a very expensive operation. On
+a slow machine it can take up whole seconds of time.
+
+In many server contexts, startup time is virtually irrelevant. A Node.js server
+that requires information about all ports is likely actually "more performant"
+if it loads all required information into memory whenever the server boots at
+the benefit of serving requests faster. The module discussed in this example is
+not a "bad" module. Electron apps, however, should not be loading, parsing, and
+storing in memory information that it does not actually need.
+
+In short, a seemingly excellent module written primarily for Node.js servers
+running Linux might be bad news for your app's performance. In this particular
+example, the correct solution was to use no module at all, and to instead use
+connectivity checks included in later versions of Chromium.
+
+### How?
+
+When considering a module, we recommend that you check:
+
+1. the size of dependencies included
+2) the resources required to load (`require()`) it
+3. the resources required to perform the action you're interested in
+
+Generating a CPU profile and a heap memory profile for loading a module can be done
+with a single command on the command line. In the example below, we're looking at
+the popular module `request`.
+
+```sh
+node --cpu-prof --heap-prof -e "require('request')"
+```
+
+Executing this command results in a `.cpuprofile` file and a `.heapprofile`
+file in the directory you executed it in. Both files can be analyzed using
+the Chrome Developer Tools, using the `Performance` and `Memory` tabs
+respectively.
+
+![performance-cpu-prof]
+
+![performance-heap-prof]
+
+In this example, on the author's machine, we saw that loading `request` took
+almost half a second, whereas `node-fetch` took dramatically less memory
+and less than 50ms.
+
+## 2) Loading and running code too soon
+
+If you have expensive setup operations, consider deferring those. Inspect all
+the work being executed right after the application starts. Instead of firing
+off all operations right away, consider staggering them in a sequence more
+closely aligned with the user's journey.
+
+In traditional Node.js development, we're used to putting all our `require()`
+statements at the top. If you're currently writing your Electron application
+using the same strategy _and_ are using sizable modules that you do not
+immediately need, apply the same strategy and defer loading to a more
+opportune time.
+
+### Why?
+
+Loading modules is a surprisingly expensive operation, especially on Windows.
+When your app starts, it should not make users wait for operations that are
+currently not necessary.
+
+This might seem obvious, but many applications tend to do a large amount of
+work immediately after the app has launched - like checking for updates,
+downloading content used in a later flow, or performing heavy disk I/O
+operations.
+
+Let's consider Visual Studio Code as an example. When you open a file, it will
+immediately display the file to you without any code highlighting, prioritizing
+your ability to interact with the text. Once it has done that work, it will
+move on to code highlighting.
+
+### How?
+
+Let's consider an example and assume that your application is parsing files
+in the fictitious `.foo` format. In order to do that, it relies on the
+equally fictitious `foo-parser` module. In traditional Node.js development,
+you might write code that eagerly loads dependencies:
+
+```js
+const fs = require('fs')
+const fooParser = require('foo-parser')
+
+class Parser {
+  constructor () {
+    this.files = fs.readdirSync('.')
+  }
+
+  getParsedFiles () {
+    return fooParser.parse(this.files)
+  }
+}
+
+const parser = new Parser()
+
+module.exports = { parser }
+```
+
+In the above example, we're doing a lot of work that's being executed as soon
+as the file is loaded. Do we need to get parsed files right away? Could we
+do this work a little later, when `getParsedFiles()` is actually called?
+
+```js
+// "fs" is likely already being loaded, so the `require()` call is cheap
+const fs = require('fs')
+
+class Parser {
+  async getFiles () {
+    // Touch the disk as soon as `getFiles` is called, not sooner.
+    // Also, ensure that we're not blocking other operations by using
+    // the asynchronous version.
+    this.files = this.files || await fs.readdir('.')
+
+    return this.files
+  }
+
+  async getParsedFiles () {
+    // Our fictitious foo-parser is a big and expensive module to load, so
+    // defer that work until we actually need to parse files.
+    // Since `require()` comes with a module cache, the `require()` call
+    // will only be expensive once - subsequent calls of `getParsedFiles()`
+    // will be faster.
+    const fooParser = require('foo-parser')
+    const files = await this.getFiles()
+
+    return fooParser.parse(files)
+  }
+}
+
+// This operation is now a lot cheaper than in our previous example
+const parser = new Parser()
+
+module.exports = { parser }
+```
+
+In short, allocate resources "just in time" rather than allocating them all
+when your app starts.
+
+## 3) Blocking the main process
+
+Electron's main process (sometimes called "browser process") is special: It is
+the parent process to all your app's other processes and the primary process
+the operating system interacts with. It handles windows, interactions, and the
+communication between various components inside your app. It also houses the
+UI thread.
+
+Under no circumstances should you block this process and the UI thread with
+long-running operations. Blocking the UI thread means that your entire app
+will freeze until the main process is ready to continue processing.
+
+### Why?
+
+The main process and its UI thread are essentially the control tower for major
+operations inside your app. When the operating system tells your app about a
+mouse click, it'll go through the main process before it reaches your window.
+If your window is rendering a buttery-smooth animation, it'll need to talk to
+the GPU process about that – once again going through the main process.
+
+Electron and Chromium are careful to put heavy disk I/O and CPU-bound operations
+onto new threads to avoid blocking the UI thread. You should do the same.
+
+### How?
+
+Electron's powerful multi-process architecture stands ready to assist you with
+your long-running tasks, but also includes a small number of performance traps.
+
+1) For long running CPU-heavy tasks, make use of
+[worker threads][worker-threads], consider moving them to the BrowserWindow, or
+(as a last resort) spawn a dedicated process.
+
+2) Avoid using the synchronous IPC and the `remote` module as much as possible.
+While there are legitimate use cases, it is far too easy to unknowingly block
+the UI thread using the `remote` module.
+
+3) Avoid using blocking I/O operations in the main process. In short, whenever
+core Node.js modules (like `fs` or `child_process`) offer a synchronous or an
+asynchronous version, you should prefer the asynchronous and non-blocking
+variant.
+
+
+## 4) Blocking the renderer process
+
+Since Electron ships with a current version of Chrome, you can make use of the
+latest and greatest features the Web Platform offers to defer or offload heavy
+operations in a way that keeps your app smooth and responsive.
+
+### Why?
+
+Your app probably has a lot of JavaScript to run in the renderer process. The
+trick is to execute operations as quickly as possible without taking away
+resources needed to keep scrolling smooth, respond to user input, or animations
+at 60fps.
+
+Orchestrating the flow of operations in your renderer's code is
+particularly useful if users complain about your app sometimes "stuttering".
+
+### How?
+
+Generally speaking, all advice for building performant web apps for modern
+browsers apply to Electron's renderers, too. The two primary tools at your
+disposal  are currently `requestIdleCallback()` for small operations and
+`Web Workers` for long-running operations.
+
+*`requestIdleCallback()`* allows developers to queue up a function to be
+executed as soon as the process is entering an idle period. It enables you to
+perform low-priority or background work without impacting the user experience.
+For more information about how to use it,
+[check out its documentation on MDN][request-idle-callback].
+
+*Web Workers* are a powerful tool to run code on a separate thread. There are
+some caveats to consider – consult Electron's
+[multithreading documentation][multithreading] and the
+[MDN documentation for Web Workers][web-workers]. They're an ideal solution
+for any operation that requires a lot of CPU power for an extended period of
+time.
+
+
+## 5) Unnecessary polyfills
+
+One of Electron's great benefits is that you know exactly which engine will
+parse your JavaScript, HTML, and CSS. If you're re-purposing code that was
+written for the web at large, make sure to not polyfill features included in
+Electron.
+
+### Why?
+
+When building a web application for today's Internet, the oldest environments
+dictate what features you can and cannot use. Even though Electron supports
+well-performing CSS filters and animations, an older browser might not. Where
+you could use WebGL, your developers may have chosen a more resource-hungry
+solution to support older phones.
+
+When it comes to JavaScript, you may have included toolkit libraries like
+jQuery for DOM selectors or polyfills like the `regenerator-runtime` to support
+`async/await`.
+
+It is rare for a JavaScript-based polyfill to be faster than the equivalent
+native feature in Electron. Do not slow down your Electron app by shipping your
+own version of standard web platform features.
+
+### How?
+
+Operate under the assumption that polyfills in current versions of Electron
+are unnecessary. If you have doubts, check [caniuse.com][https://caniuse.com/]
+and check if the [version of Chromium used in your Electron version](../api/process.md#processversionschrome-readonly)
+supports the feature you desire.
+
+In addition, carefully examine the libraries you use. Are they really necessary?
+`jQuery`, for example, was such a success that many of its features are now part
+of the [standard JavaScript feature set available][jquery-need].
+
+If you're using a transpiler/compiler like TypeScript, examine its configuration
+and ensure that you're targeting the latest ECMAScript version supported by
+Electron.
+
+
+## 6) Unnecessary or blocking network requests
+
+Avoid fetching rarely changing resources from the internet if they could easily
+be bundled with your application.
+
+### Why?
+
+Many users of Electron start with an entirely web-based app that they're
+turning into a desktop application. As web developers, we are used to loading
+resources from a variety of content delivery networks. Now that you are
+shipping a proper desktop application, attempt to "cut the cord" where possible
+ - and avoid letting your users wait for resources that never change and could
+easily be included  in your app.
+
+A typical example is Google Fonts. Many developers make use of Google's
+impressive collection of free fonts, which comes with a content delivery
+network. The pitch is straightforward: Include a few lines of CSS and Google
+will take care of the rest.
+
+When building an Electron app, your users are better served if you download
+the fonts and include them in your app's bundle.
+
+### How?
+
+In an ideal world, your application wouldn't need the network to operate at
+all. To get there, you must understand what resources your app is downloading
+\- and how large those resources are.
+
+To do so, open up the developer tools. Navigate to the `Network` tab and check
+the `Disable cache` option. Then, reload your renderer. Unless your app
+prohibits such reloads, you can usually trigger a reload by hitting `Cmd + R`
+or `Ctrl + R` with the developer tools in focus.
+
+The tools will now meticulously record all network requests. In a first pass,
+take stock of all the resources being downloaded, focusing on the larger files
+first. Are any of them images, fonts, or media files that don't change and
+could be included with your bundle? If so, include them.
+
+As a next step, enable `Network Throttling`. Find the drop-down that currently
+reads `Online` and select a slower speed such as `Fast 3G`. Reload your
+renderer and see if there are any resources that your app is unnecessarily
+waiting for. In many cases, an app will wait for a network request to complete
+despite not actually needing the involved resource.
+
+As a tip, loading resources from the Internet that you might want to change
+without shipping an application update is a powerful strategy. For advanced
+control over how resources are being loaded, consider investing in
+[Service Workers][service-workers].
+
+## 7) Bundle your code
+
+As already pointed out in
+"[Loading and running code too soon](#2-loading-and-running-code-too-soon)",
+calling `require()` is an expensive operation. If you are able to do so,
+bundle your application's code into a single file.
+
+### Why?
+
+Modern JavaScript development usually involves many files and modules. While
+that's perfectly fine for developing with Electron, we heavily recommend that
+you bundle all your code into one single file to ensure that the overhead
+included in calling `require()` is only paid once when your application loads.
+
+### How?
+
+There are numerous JavaScript bundlers out there and we know better than to
+anger the community by recommending one tool over another. We do however
+recommend that you use a bundler that is able to handle Electron's unique
+environment that needs to handle both Node.js and browser environments.
+
+As of writing this article, the popular choices include [Webpack][webpack],
+[Parcel][parcel], and [rollup.js][rollup].
+
+[security]: ./security.md
+[performance-cpu-prof]: ../images/performance-cpu-prof.png
+[performance-heap-prof]: ../images/performance-heap-prof.png
+[chrome-devtools-tutorial]: https://developers.google.com/web/tools/chrome-devtools/evaluate-performance/
+[worker-threads]: https://nodejs.org/api/worker_threads.html
+[web-workers]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers
+[request-idle-callback]: https://developer.mozilla.org/en-US/docs/Web/API/Window/requestIdleCallback
+[multithreading]: ./multithreading.md
+[caniuse]: https://caniuse.com/
+[jquery-need]: http://youmightnotneedjquery.com/
+[service-workers]: https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API
+[webpack]: https://webpack.js.org/
+[parcel]: https://parceljs.org/
+[rollup]: https://rollupjs.org/
+[vscode-first-second]: https://www.youtube.com/watch?v=r0OeHRUCCb4

docs/tutorial/security.md

@@ -27,18 +27,8 @@ see [SECURITY.md](https://github.com/electron/electron/tree/master/SECURITY.md)
 
 ## Chromium Security Issues and Upgrades
 
-While Electron strives to support new versions of Chromium as soon as possible,
-developers should be aware that upgrading is a serious undertaking - involving
-hand-editing dozens or even hundreds of files. Given the resources and
-contributions available today, Electron will often not be on the very latest
-version of Chromium, lagging behind by several weeks or a few months.
-
-We feel that our current system of updating the Chromium component strikes an
-appropriate balance between the resources we have available and the needs of
-the majority of applications built on top of the framework. We definitely are
-interested in hearing more about specific use cases from the people that build
-things on top of Electron. Pull requests and contributions supporting this
-effort are always very welcome.
+Electron keeps up to date with alternating Chromium releases. For more information,
+see the [Electron Release Cadence blog post](https://electronjs.org/blog/12-week-cadence).
 
 ## Security Is Everyone's Responsibility
 
@@ -391,7 +381,7 @@ easy way to improve your application's security.
 The following CSP will allow Electron to execute scripts from the current
 website and from `apis.example.com`.
 
-```txt
+```plaintext
 // Bad
 Content-Security-Policy: '*'
 

docs/tutorial/snapcraft.md

@@ -49,7 +49,7 @@ your application's size.
 
 The output should look roughly like this:
 
-```text
+```plaintext
 .
 └── dist
     └── app-linux-x64
@@ -128,7 +128,6 @@ parts:
       - desktop-gtk3
     stage-packages:
       - libasound2
-      - libgconf2-4
       - libnotify4
       - libnspr4
       - libnss3
@@ -177,7 +176,7 @@ apps:
 [snapcraft.io]: https://snapcraft.io/
 [snapcraft-store]: https://snapcraft.io/store/
 [snapcraft-syntax]: https://docs.snapcraft.io/build-snaps/syntax
-[electron-packager]: https://github.com/electron-userland/electron-packager
+[electron-packager]: https://github.com/electron/electron-packager
 [electron-forge]: https://github.com/electron-userland/electron-forge
 [electron-builder]: https://github.com/electron-userland/electron-builder
 [electron-installer-debian]: https://github.com/unindented/electron-installer-debian

docs/tutorial/support.md

@@ -33,9 +33,9 @@ tools and resources.
 
 ## Supported Versions
 
-The latest three major versions are supported by the Electron team.
-For example, if the latest release is 5.0.x, then the 4.x.y series
-is supported, as are the two previous release series 3.x.y and 2.x.y.
+The latest three *stable* major versions are supported by the Electron team.
+For example, if the latest release is 6.x.y, then the 5.x.y as well
+as the 4.x.y series are supported.
 
 The latest stable release unilaterally receives all fixes from `master`,
 and the version prior to that receives the vast majority of those fixes
@@ -48,9 +48,9 @@ basis for some older supported lines. All contested decisions around release
 line backports will be resolved by the [Releases Working Group](https://github.com/electron/governance/tree/master/wg-releases) as an agenda item at their weekly meeting the week the backport PR is raised.
 
 ### Currently supported versions
-- 5.x
-- 4.x
-- 3.x
+- 6.x.y
+- 5.x.y
+- 4.x.y
 
 ### End-of-life