Bump v8.0.0-beta.2

* feat: enable builtin spellchecker (#20692)

* chore: add code required to use chromes spellchecker

* chore: fix linting

* chore: manifests needs buildflags now

* chore: add dictionarySuggestions to the context menu event when the spellchecker is active

* chore: enable by default for windows builds

* chore: add patch to remove incognito usage in the spellchecker

* chore: add dependencies on spellcheck common and flags

* chore: conditionally include spell check panel impl

* chore: fix deps for spellcheck feature flags

* chore: add patch for electron resources

* chore: add dependency on //components/language/core/browser

* chore: patches to make hunspell work on windows

* build: collect hunspell dictionaries into a zip file and publish

* chore: clean up patches

* chore: add docs and set spell checker url method

* chore: fix error handling

* chore: fix hash logic

* build: update hunspell filename generator

* fix: default spellchecker list to the current system locale if we can

* docs: document the language getter

* chore: patch IDS_ resources for linux builds

* feat: add spellcheck webpref flag to disable the builtin spellchecker

* chore: fix docs typo

* chore: clean up spellchecker impl as per feedback

* remove unneeded deps

* chore: disable spellcheck by default in web prefs

.circleci/config.yml

@@ -4,7 +4,7 @@ parameters:
   upload-to-s3:
     type: string
     default: '1'
-  
+
   run-lint:
     type: boolean
     default: true
@@ -28,11 +28,11 @@ parameters:
   run-linux-arm-publish:
     type: boolean
     default: false
-  
+
   run-linux-arm64-publish:
     type: boolean
     default: false
-  
+
   run-osx-publish:
     type: boolean
     default: false
@@ -136,7 +136,7 @@ env-linux-medium: &env-linux-medium
 
 env-linux-2xlarge: &env-linux-2xlarge
   NUMBER_OF_NINJA_PROCESSES: 34
-  
+
 env-linux-2xlarge-release: &env-linux-2xlarge-release
   NUMBER_OF_NINJA_PROCESSES: 16
 
@@ -149,9 +149,6 @@ env-mac-large: &env-mac-large
 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
-
 env-ninja-status: &env-ninja-status
   NINJA_STATUS: "[%r processes, %f/%t @ %o/s : %es] "
 
@@ -224,7 +221,7 @@ 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
@@ -322,6 +319,8 @@ step-gn-check: &step-gn-check
       gn check out/Default //electron:electron_app
       gn check out/Default //electron:manifests
       gn check out/Default //electron/shell/common/api:mojo
+      # Check the hunspell filenames
+      node electron/script/gen-hunspell-filenames.js --check
 
 step-electron-build: &step-electron-build
   run:
@@ -331,6 +330,14 @@ step-electron-build: &step-electron-build
       cd src
       ninja -C out/Default electron -j $NUMBER_OF_NINJA_PROCESSES
 
+step-native-unittests-build: &step-native-unittests-build
+  run:
+    name: Build native test targets
+    no_output_timeout: 30m
+    command: |
+      cd src
+      ninja -C out/Default shell_browser_ui_unittests -j $NUMBER_OF_NINJA_PROCESSES
+
 step-maybe-electron-dist-strip: &step-maybe-electron-dist-strip
   run:
     name: Strip electron binaries
@@ -402,6 +409,11 @@ step-nodejs-headers-store: &step-nodejs-headers-store
     path: src/out/Default/gen/node_headers.tar.gz
     destination: node_headers.tar.gz
 
+step-native-unittests-store: &step-native-unittests-store
+  store_artifacts:
+    path: src/out/Default/shell_browser_ui_unittests
+    destination: shell_browser_ui_unittests
+
 step-electron-publish: &step-electron-publish
   run:
     name: Publish Electron Dist
@@ -422,6 +434,7 @@ step-persist-data-for-tests: &step-persist-data-for-tests
       # Build artifacts
       - src/out/Default/dist.zip
       - src/out/Default/mksnapshot.zip
+      - src/out/Default/shell_browser_ui_unittests
       - src/out/Default/gen/node_headers
       - src/out/ffmpeg/ffmpeg.zip
       - src/electron
@@ -523,6 +536,20 @@ step-mksnapshot-store: &step-mksnapshot-store
     path: src/out/Default/mksnapshot.zip
     destination: mksnapshot.zip
 
+step-hunspell-build: &step-hunspell-build
+  run:
+    name: hunspell build
+    command: |
+      cd src
+      if [ "$SKIP_DIST_ZIP" != "1" ]; then
+        ninja -C out/Default electron:hunspell_dictionaries_zip -j $NUMBER_OF_NINJA_PROCESSES
+      fi
+
+step-hunspell-store: &step-hunspell-store
+  store_artifacts:
+    path: src/out/Default/hunspell_dictionaries.zip
+    destination: hunspell_dictionaries.zip
+
 step-maybe-generate-breakpad-symbols: &step-maybe-generate-breakpad-symbols
   run:
     name: Generate breakpad symbols
@@ -542,6 +569,11 @@ step-maybe-zip-symbols: &step-maybe-zip-symbols
       ninja -C out/Default electron:electron_version
       electron/script/zip-symbols.py -b $BUILD_PATH
 
+step-symbols-store: &step-symbols-store
+  store_artifacts:
+    path: src/out/Default/symbols.zip
+    destination: symbols.zip
+
 step-maybe-cross-arch-snapshot: &step-maybe-cross-arch-snapshot
   run:
     name: Generate cross arch snapshot (arm/arm64)
@@ -677,7 +709,6 @@ step-minimize-workspace-size-from-checkout: &step-minimize-workspace-size-from-c
       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
@@ -688,6 +719,51 @@ step-save-src-cache: &step-save-src-cache
     key: v5-src-cache-{{ arch }}-{{ checksum "src/electron/.depshash" }}
     name: Persisting src cache
 
+# Check for doc only change
+step-check-for-doc-only-change: &step-check-for-doc-only-change
+  run:
+    name: Check if commit is doc only change
+    command: |
+      cd src/electron
+      node script/yarn install --frozen-lockfile
+      if node script/doc-only-change.js --prNumber=$CIRCLE_PR_NUMBER --prURL=$CIRCLE_PULL_REQUEST; then
+        #PR is doc only change; save file with value true to indicate doc only change
+        echo "true" > .skip-ci-build
+      else
+        #PR is not a doc only change; create empty file to indicate check has been done
+        touch .skip-ci-build
+      fi
+
+step-persist-doc-only-change: &step-persist-doc-only-change
+  persist_to_workspace:
+    root: .
+    paths:
+      - src/electron/.skip-ci-build
+
+step-maybe-early-exit-doc-only-change: &step-maybe-early-exit-doc-only-change
+  run:
+    name: Shortcircuit build if doc only change
+    command: |
+      if [ -s src/electron/.skip-ci-build ]; then
+        circleci-agent step halt
+      fi
+
+step-maybe-early-exit-no-doc-change: &step-maybe-early-exit-no-doc-change
+  run:
+    name: Shortcircuit job if change is not doc only
+    command: |
+      if [ ! -s src/electron/.skip-ci-build ]; then
+        circleci-agent step halt
+      fi
+
+step-ts-compile: &step-ts-compile
+  run:
+    name: Run TS/JS compile on doc only change
+    command: |
+      cd src
+      ninja -C out/Default electron:default_app_js -j $NUMBER_OF_NINJA_PROCESSES
+      ninja -C out/Default electron:atom_js2c -j $NUMBER_OF_NINJA_PROCESSES
+
 # Lists of steps.
 steps-lint: &steps-lint
   steps:
@@ -736,6 +812,9 @@ steps-lint: &steps-lint
 steps-checkout-fast: &steps-checkout-fast
   steps:
     - *step-checkout-electron
+    - *step-check-for-doc-only-change
+    - *step-persist-doc-only-change
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-get
     - *step-depot-tools-add-to-path
     - *step-restore-brew-cache
@@ -767,6 +846,9 @@ steps-checkout-fast: &steps-checkout-fast
 steps-checkout-and-save-cache: &steps-checkout-and-save-cache
   steps:
     - *step-checkout-electron
+    - *step-check-for-doc-only-change
+    - *step-persist-doc-only-change
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-get
     - *step-depot-tools-add-to-path
     - *step-restore-brew-cache
@@ -797,6 +879,7 @@ steps-electron-gn-check: &steps-electron-gn-check
   steps:
     - attach_workspace:
         at: .
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-add-to-path
     - *step-setup-env-for-build
     - *step-gn-gen-default
@@ -806,6 +889,7 @@ steps-electron-build: &steps-electron-build
   steps:
     - attach_workspace:
         at: .
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-add-to-path
     - *step-setup-env-for-build
     - *step-restore-brew-cache
@@ -822,6 +906,10 @@ steps-electron-build: &steps-electron-build
     - *step-electron-dist-store
     - *step-ninja-summary
 
+    # Native test targets
+    - *step-native-unittests-build
+    - *step-native-unittests-store
+
     # Node.js headers
     - *step-nodejs-headers-build
     - *step-nodejs-headers-store
@@ -839,11 +927,16 @@ steps-electron-build: &steps-electron-build
     - *step-ffmpeg-build
     - *step-ffmpeg-store
 
+    # hunspell
+    - *step-hunspell-build
+    - *step-hunspell-store
+
     # Save all data needed for a further tests run.
     - *step-persist-data-for-tests
 
     - *step-maybe-generate-breakpad-symbols
     - *step-maybe-zip-symbols
+    - *step-symbols-store
 
     # Trigger tests on arm hardware if needed
     - *step-maybe-trigger-arm-test
@@ -854,6 +947,9 @@ steps-electron-build-with-inline-checkout-for-tests: &steps-electron-build-with-
   steps:
     # Checkout - Copied ffrom steps-checkout
     - *step-checkout-electron
+    - *step-check-for-doc-only-change
+    - *step-persist-doc-only-change
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-get
     - *step-depot-tools-add-to-path
     - *step-restore-brew-cache
@@ -875,7 +971,7 @@ steps-electron-build-with-inline-checkout-for-tests: &steps-electron-build-with-
     - *step-generate-deps-hash-cleanly
     - *step-mark-sync-done
     - *step-minimize-workspace-size-from-checkout
-    
+
     - *step-depot-tools-add-to-path
     - *step-setup-env-for-build
     - *step-restore-brew-cache
@@ -892,6 +988,10 @@ steps-electron-build-with-inline-checkout-for-tests: &steps-electron-build-with-
     - *step-electron-dist-store
     - *step-ninja-summary
 
+    # Native test targets
+    - *step-native-unittests-build
+    - *step-native-unittests-store
+
     # Node.js headers
     - *step-nodejs-headers-build
     - *step-nodejs-headers-store
@@ -909,17 +1009,61 @@ steps-electron-build-with-inline-checkout-for-tests: &steps-electron-build-with-
     - *step-ffmpeg-build
     - *step-ffmpeg-store
 
+    # hunspell
+    - *step-hunspell-build
+    - *step-hunspell-store
+
     # Save all data needed for a further tests run.
     - *step-persist-data-for-tests
 
     - *step-maybe-generate-breakpad-symbols
     - *step-maybe-zip-symbols
+    - *step-symbols-store
 
     # Trigger tests on arm hardware if needed
     - *step-maybe-trigger-arm-test
 
     - *step-maybe-notify-slack-failure
 
+steps-electron-ts-compile-for-doc-change: &steps-electron-ts-compile-for-doc-change
+  steps:
+    # Checkout - Copied ffrom steps-checkout
+    - *step-checkout-electron
+    - *step-check-for-doc-only-change
+    - *step-maybe-early-exit-no-doc-change
+    - *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
+    # 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-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
+
+    #Compile ts/js to verify doc change didn't break anything
+    - *step-ts-compile
+
 steps-electron-build-for-publish: &steps-electron-build-for-publish
   steps:
     - *step-checkout-electron
@@ -934,11 +1078,12 @@ steps-electron-build-for-publish: &steps-electron-build-for-publish
 
     # Electron app
     - *step-electron-build
+    - *step-maybe-generate-breakpad-symbols
     - *step-maybe-electron-dist-strip
     - *step-electron-dist-build
     - *step-electron-dist-store
-    - *step-maybe-generate-breakpad-symbols
     - *step-maybe-zip-symbols
+    - *step-symbols-store
 
     # mksnapshot
     - *step-mksnapshot-build
@@ -957,6 +1102,10 @@ steps-electron-build-for-publish: &steps-electron-build-for-publish
     - *step-ffmpeg-build
     - *step-ffmpeg-store
 
+    # hunspell
+    - *step-hunspell-build
+    - *step-hunspell-store
+
     # typescript defs
     - *step-maybe-generate-typescript-defs
 
@@ -1037,6 +1186,7 @@ steps-tests: &steps-tests
   steps:
     - attach_workspace:
         at: .
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-add-to-path
     - *step-electron-dist-unzip
     - *step-mksnapshot-unzip
@@ -1079,6 +1229,7 @@ steps-test-nan: &steps-test-nan
   steps:
     - attach_workspace:
           at: .
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-add-to-path
     - *step-electron-dist-unzip
     - *step-setup-linux-for-headless-testing
@@ -1094,6 +1245,7 @@ steps-test-node: &steps-test-node
   steps:
     - attach_workspace:
           at: .
+    - *step-maybe-early-exit-doc-only-change
     - *step-depot-tools-add-to-path
     - *step-electron-dist-unzip
     - *step-setup-linux-for-headless-testing
@@ -1119,6 +1271,13 @@ jobs:
       <<: *env-linux-medium
     <<: *steps-lint
 
+  ts-compile-doc-change:
+    <<: *machine-linux-medium
+    environment:
+      <<: *env-linux-medium
+      <<: *env-testing-build
+    <<: *steps-electron-ts-compile-for-doc-change
+
   # Layer 1: Checkout.
   linux-checkout-fast:
     <<: *machine-linux-2xlarge
@@ -1220,7 +1379,7 @@ jobs:
   linux-x64-release:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       <<: *env-release-build
       <<: *env-enable-sccache
       <<: *env-send-slack-notifications
@@ -1233,6 +1392,7 @@ jobs:
       <<: *env-linux-2xlarge-release
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       <<: *env-release-build
+      <<: *env-enable-sccache
       UPLOAD_TO_S3: << pipeline.parameters.upload-to-s3 >>
     <<: *steps-electron-build-for-publish
 
@@ -1271,7 +1431,7 @@ jobs:
   linux-ia32-release:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       <<: *env-ia32
       <<: *env-release-build
       <<: *env-enable-sccache
@@ -1286,6 +1446,7 @@ jobs:
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       <<: *env-ia32
       <<: *env-release-build
+      <<: *env-enable-sccache
       UPLOAD_TO_S3: << pipeline.parameters.upload-to-s3 >>
     <<: *steps-electron-build-for-publish
 
@@ -1325,7 +1486,7 @@ jobs:
   linux-arm-release:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       <<: *env-arm
       <<: *env-release-build
       <<: *env-enable-sccache
@@ -1339,6 +1500,7 @@ jobs:
       <<: *env-linux-2xlarge-release
       <<: *env-arm
       <<: *env-release-build
+      <<: *env-enable-sccache
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       UPLOAD_TO_S3: << pipeline.parameters.upload-to-s3 >>
     <<: *steps-electron-build-for-publish
@@ -1395,7 +1557,7 @@ jobs:
   linux-arm64-release:
     <<: *machine-linux-2xlarge
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-2xlarge-release
       <<: *env-arm64
       <<: *env-release-build
       <<: *env-enable-sccache
@@ -1409,6 +1571,7 @@ jobs:
       <<: *env-linux-2xlarge-release
       <<: *env-arm64
       <<: *env-release-build
+      <<: *env-enable-sccache
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm64=True --custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       UPLOAD_TO_S3: << pipeline.parameters.upload-to-s3 >>
     <<: *steps-electron-build-for-publish
@@ -1468,6 +1631,7 @@ jobs:
     environment:
       <<: *env-mac-large-release
       <<: *env-release-build
+      <<: *env-enable-sccache
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       UPLOAD_TO_S3: << pipeline.parameters.upload-to-s3 >>
     <<: *steps-electron-build-for-publish
@@ -1524,7 +1688,7 @@ jobs:
       <<: *env-mas
       <<: *env-release-build
       <<: *env-enable-sccache
-      <<: *env-ninja-status      
+      <<: *env-ninja-status
     <<: *steps-electron-build
 
   mas-publish:
@@ -1533,6 +1697,7 @@ jobs:
       <<: *env-mac-large-release
       <<: *env-mas
       <<: *env-release-build
+      <<: *env-enable-sccache
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_boto=True --custom-var=checkout_requests=True'
       UPLOAD_TO_S3: << pipeline.parameters.upload-to-s3 >>
     <<: *steps-electron-build-for-publish
@@ -1684,7 +1849,6 @@ jobs:
     environment:
       <<: *env-mac-large
       <<: *env-stack-dumping
-      <<: *env-disable-crash-reporter-tests
     <<: *steps-tests
 
   osx-release-tests:
@@ -1693,7 +1857,6 @@ jobs:
       <<: *env-mac-large
       <<: *env-stack-dumping
       <<: *env-send-slack-notifications
-      <<: *env-disable-crash-reporter-tests
     <<: *steps-tests
 
   osx-verify-ffmpeg:
@@ -1789,9 +1952,9 @@ jobs:
       - *step-maybe-notify-slack-success
 
 workflows:
-  version: 2
+  version: 2.1
 
-  # The publish workflows below each contain one job so that they are 
+  # The publish workflows below each contain one job so that they are
   # compatible with how sudowoodo works today.  If these workflows are
   # changed to have multiple jobs, then scripts/release/ci-release-build.js
   # will need to be updated and there will most likely need to be changes to
@@ -1800,32 +1963,38 @@ workflows:
   publish-x64-linux:
     when: << pipeline.parameters.run-linux-x64-publish >>
     jobs:
-    - linux-x64-publish
+    - linux-x64-publish:
+        context: release-env
 
   publish-ia32-linux:
     when: << pipeline.parameters.run-linux-ia32-publish >>
     jobs:
-    - linux-ia32-publish
+    - linux-ia32-publish:
+        context: release-env
 
   publish-arm-linux:
     when: << pipeline.parameters.run-linux-arm-publish >>
     jobs:
-    - linux-arm-publish
-  
+    - linux-arm-publish:
+        context: release-env
+
   publish-arm64-linux:
     when: << pipeline.parameters.run-linux-arm64-publish >>
     jobs:
-    - linux-arm64-publish
-  
+    - linux-arm64-publish:
+        context: release-env
+
   publish-osx:
     when: << pipeline.parameters.run-osx-publish >>
     jobs:
-    - osx-publish
+    - osx-publish:
+        context: release-env
 
   publish-mas:
     when: << pipeline.parameters.run-mas-publish >>
     jobs:
-    - mas-publish
+    - mas-publish:
+        context: release-env
 
   lint:
     when: << pipeline.parameters.run-lint >>
@@ -1880,6 +2049,7 @@ workflows:
       - linux-arm64-testing-gn-check:
           requires:
             - linux-checkout-fast
+      - ts-compile-doc-change
 
   build-mac:
     when: << pipeline.parameters.run-build-mac >>

.github/config.yml

@@ -29,13 +29,11 @@ firstPRMergeComment: >
 # Users authorized to run manual trop backports
 authorizedUsers:
   - alexeykuzmin
-  - BinaryMuse
   - ckerr
   - codebytere
   - deepak1556
   - jkleinsc
   - MarshallOfSound
   - miniak
-  - nitsakh
   - nornagon
   - zcbenz

.gitignore

@@ -58,7 +58,7 @@ spec/.hash
 .eslintcache
 
 # Generated native addon files
-/spec/fixtures/native-addon/echo/build/
+/spec-main/fixtures/native-addon/echo/build/
 
 # If someone runs tsc this is where stuff will end up
 ts-gen

BUILD.gn

@@ -1,9 +1,11 @@
 import("//build/config/locales.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
+import("//components/spellcheck/spellcheck_build_features.gni")
 import("//content/public/app/mac_helpers.gni")
 import("//pdf/features.gni")
 import("//printing/buildflags/buildflags.gni")
+import("//testing/test.gni")
 import("//third_party/ffmpeg/ffmpeg_options.gni")
 import("//tools/generate_library_loader/generate_library_loader.gni")
 import("//tools/grit/grit_rule.gni")
@@ -20,12 +22,14 @@ import("buildflags/buildflags.gni")
 import("electron_paks.gni")
 import("filenames.auto.gni")
 import("filenames.gni")
+import("filenames.hunspell.gni")
 
 if (is_mac) {
   import("//build/config/mac/rules.gni")
   import("//third_party/icu/config.gni")
   import("//ui/gl/features.gni")
   import("//v8/gni/v8.gni")
+  import("build/rules.gni")
 }
 
 if (is_linux) {
@@ -60,6 +64,10 @@ config("branding") {
   ]
 }
 
+config("electron_lib_config") {
+  include_dirs = [ "." ]
+}
+
 # We geneate the definitions twice here, once in //electron/electron.d.ts
 # and once in $target_gen_dir
 # The one in $target_gen_dir is used for the actual TSC build later one
@@ -280,6 +288,7 @@ if (is_linux) {
       "notify_notification_add_action",
       "notify_notification_set_image_from_pixbuf",
       "notify_notification_set_timeout",
+      "notify_notification_set_urgency",
       "notify_notification_set_hint_string",
       "notify_notification_show",
       "notify_notification_close",
@@ -332,7 +341,10 @@ source_set("electron_lib") {
   configs += [ "//v8:external_startup_data" ]
   configs += [ "//third_party/electron_node:node_internals" ]
 
-  public_configs = [ ":branding" ]
+  public_configs = [
+    ":branding",
+    ":electron_lib_config",
+  ]
 
   deps = [
     ":atom_js2c",
@@ -348,12 +360,12 @@ source_set("electron_lib") {
     "//chrome/app/resources:platform_locale_settings",
     "//chrome/services/printing/public/mojom",
     "//components/certificate_transparency",
+    "//components/language/core/browser",
     "//components/net_log",
     "//components/network_hints/common",
     "//components/network_hints/renderer",
     "//components/network_session_configurator/common",
     "//components/prefs",
-    "//components/spellcheck/renderer",
     "//components/viz/host",
     "//components/viz/service",
     "//content/public/browser",
@@ -468,12 +480,29 @@ source_set("electron_lib") {
     ]
   }
 
+  if (enable_builtin_spellchecker) {
+    deps += [ "chromium_src:chrome_spellchecker" ]
+  }
+
   if (is_mac) {
     deps += [
       "//components/remote_cocoa/app_shim",
       "//content/common:mac_helpers",
       "//ui/accelerated_widget_mac",
     ]
+
+    libs = [
+      "AVFoundation.framework",
+      "Carbon.framework",
+      "LocalAuthentication.framework",
+      "QuartzCore.framework",
+      "Quartz.framework",
+      "Security.framework",
+      "SecurityInterface.framework",
+      "ServiceManagement.framework",
+      "StoreKit.framework",
+    ]
+
     sources += [
       "shell/browser/ui/views/autofill_popup_view.cc",
       "shell/browser/ui/views/autofill_popup_view.h",
@@ -579,6 +608,17 @@ source_set("electron_lib") {
     ]
   }
 
+  if (enable_remote_module) {
+    sources += [
+      "shell/common/api/remote/object_life_monitor.cc",
+      "shell/common/api/remote/object_life_monitor.h",
+      "shell/common/api/remote/remote_callback_freer.cc",
+      "shell/common/api/remote/remote_callback_freer.h",
+      "shell/common/api/remote/remote_object_freer.cc",
+      "shell/common/api/remote/remote_object_freer.h",
+    ]
+  }
+
   if (enable_desktop_capturer) {
     if (is_component_build && !is_linux) {
       # On windows the implementation relies on unexported
@@ -655,6 +695,12 @@ if (is_mac) {
   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 = [
       ":packed_resources",
@@ -762,6 +808,7 @@ if (is_mac) {
       "Libraries",
     ]
     public_deps = [
+      ":electron_framework_libraries",
       ":electron_lib",
     ]
     deps = [
@@ -769,6 +816,7 @@ if (is_mac) {
       ":electron_framework_libraries",
       ":electron_framework_resources",
       ":electron_swiftshader_library",
+      ":electron_xibs",
     ]
     if (!is_mas_build) {
       deps += [ ":electron_crashpad_helper" ]
@@ -783,18 +831,6 @@ if (is_mac) {
     include_dirs = [ "." ]
     sources = filenames.framework_sources
 
-    libs = [
-      "AVFoundation.framework",
-      "Carbon.framework",
-      "LocalAuthentication.framework",
-      "QuartzCore.framework",
-      "Quartz.framework",
-      "Security.framework",
-      "SecurityInterface.framework",
-      "ServiceManagement.framework",
-      "StoreKit.framework",
-    ]
-
     if (enable_osr) {
       libs += [ "IOSurface.framework" ]
     }
@@ -1177,6 +1213,37 @@ if (is_mac) {
   }
 }
 
+test("shell_browser_ui_unittests") {
+  sources = [
+    "//electron/shell/browser/ui/accelerator_util_unittests.cc",
+    "//electron/shell/browser/ui/run_all_unittests.cc",
+  ]
+
+  configs += [ ":electron_lib_config" ]
+
+  deps = [
+    ":electron_lib",
+    "//base",
+    "//base/test:test_support",
+    "//testing/gmock",
+    "//testing/gtest",
+    "//ui/base",
+    "//ui/strings",
+  ]
+
+  if (is_mac) {
+    # Resolve paths owing to different test executable locations
+    ldflags = [
+      "-F",
+      rebase_path("external_binaries", root_build_dir),
+      "-rpath",
+      "@loader_path",
+      "-rpath",
+      "@executable_path/" + rebase_path("external_binaries", root_build_dir),
+    ]
+  }
+}
+
 template("dist_zip") {
   _runtime_deps_target = "${target_name}__deps"
   _runtime_deps_file =
@@ -1204,9 +1271,14 @@ template("dist_zip") {
                              "outputs",
                              "testonly",
                            ])
+    flatten = false
+    if (defined(invoker.flatten)) {
+      flatten = invoker.flatten
+    }
     args = rebase_path(outputs + [ _runtime_deps_file ], root_build_dir) + [
              target_cpu,
              target_os,
+             "$flatten",
            ]
   }
 }
@@ -1292,6 +1364,24 @@ dist_zip("electron_mksnapshot_zip") {
   ]
 }
 
+copy("hunspell_dictionaries") {
+  sources = hunspell_dictionaries + hunspell_licenses
+  outputs = [
+    "$target_gen_dir/electron_hunspell/{{source_file_part}}",
+  ]
+}
+
+dist_zip("hunspell_dictionaries_zip") {
+  data_deps = [
+    ":hunspell_dictionaries",
+  ]
+  flatten = true
+
+  outputs = [
+    "$root_build_dir/hunspell_dictionaries.zip",
+  ]
+}
+
 group("electron") {
   public_deps = [
     ":electron_app",

CONTRIBUTING.md

@@ -20,13 +20,11 @@ Issues are created [here](https://github.com/electron/electron/issues/new).
 * [Triaging a Bug Report](https://electronjs.org/docs/development/issues#triaging-a-bug-report)
 * [Resolving a Bug Report](https://electronjs.org/docs/development/issues#resolving-a-bug-report)
 
-### Issue Maintenance and Closure
-* If an issue is inactive for 45 days (no activity of any kind), it will be
-marked for closure with `stale`.
-* If after this label is applied, no further activity occurs in the next 7 days,
-the issue will be closed.
-  * If an issue has been closed and you still feel it's relevant, feel free to
-  ping a maintainer or add a comment!
+### Issue Closure
+
+Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 12 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/12-week-cadence).)
+
+_If an issue has been closed and you still feel it's relevant, feel free to ping a maintainer or add a comment!_
 
 ### Languages
 

DEPS

@@ -5,14 +5,15 @@ gclient_gn_args = [
   'checkout_android_native_support',
   'checkout_libaom',
   'checkout_nacl',
-  'checkout_oculus_sdk'
+  'checkout_oculus_sdk',
+  'checkout_openxr'
 ]
 
 vars = {
   'chromium_version':
-    '62327c655093c821aa0fcfc6db53f5fd943e08c7',
+    'c3a0220e7bde049d599a8332b9b2785b0178be74',
   'node_version':
-    'v12.9.1',
+    'v12.13.0',
   'nan_version':
     '2ee313aaca52e2b478965ac50eb5082520380d1b',
 
@@ -60,6 +61,8 @@ vars = {
     True,
   'checkout_oculus_sdk':
     False,
+  'checkout_openxr':
+    False,
   'build_with_chromium':
     True,
   'checkout_android':

ELECTRON_VERSION

@@ -1 +1 @@
-8.0.0-nightly.20190918
+8.0.0-beta.2

README.md

@@ -58,13 +58,13 @@ npm start
 
 ## Resources for learning Electron
 
-- [electronjs.org/docs](https://electronjs.org/docs) - all of Electron's documentation
+- [electronjs.org/docs](https://electronjs.org/docs) - All of Electron's documentation
 - [electron/fiddle](https://github.com/electron/fiddle) - A tool to build, run, and package small Electron experiments
-- [electron/electron-quick-start](https://github.com/electron/electron-quick-start) - a very basic starter Electron app
-- [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - sample starter apps created by the community
-- [electron/simple-samples](https://github.com/electron/simple-samples) - small applications with ideas for taking them further
-- [electron/electron-api-demos](https://github.com/electron/electron-api-demos) - an Electron app that teaches you how to use Electron
-- [hokein/electron-sample-apps](https://github.com/hokein/electron-sample-apps) - small demo apps for the various Electron APIs
+- [electron/electron-quick-start](https://github.com/electron/electron-quick-start) - A very basic starter Electron app
+- [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - Sample starter apps created by the community
+- [electron/simple-samples](https://github.com/electron/simple-samples) - Small applications with ideas for taking them further
+- [electron/electron-api-demos](https://github.com/electron/electron-api-demos) - An Electron app that teaches you how to use Electron
+- [hokein/electron-sample-apps](https://github.com/hokein/electron-sample-apps) - Small demo apps for the various Electron APIs
 
 ## Programmatic usage
 

appveyor.yml

@@ -50,6 +50,12 @@ build_script:
   - ps: >-
       if(($env:APPVEYOR_PULL_REQUEST_HEAD_REPO_NAME -split "/")[0] -eq ($env:APPVEYOR_REPO_NAME -split "/")[0]) {
         Write-warning "Skipping PR build for branch"; Exit-AppveyorBuild
+      } else {
+        node script/yarn.js install --frozen-lockfile
+
+        if ($(node script/doc-only-change.js --prNumber=$env:APPVEYOR_PULL_REQUEST_NUMBER --prBranch=$env:APPVEYOR_REPO_BRANCH;$LASTEXITCODE -eq 0)) {
+          Write-warning "Skipping build for doc only change"; Exit-AppveyorBuild
+        }
       }
   - echo "Building $env:GN_CONFIG build"
   - git config --global core.longpaths true
@@ -83,15 +89,19 @@ build_script:
   - gn gen out/ffmpeg "--args=import(\"//electron/build/args/ffmpeg.gn\") %GN_EXTRA_ARGS%"
   - ninja -C out/ffmpeg electron:electron_ffmpeg_zip
   - ninja -C out/Default electron:electron_dist_zip
+  - ninja -C out/Default shell_browser_ui_unittests
   - ninja -C out/Default electron:electron_mksnapshot_zip
+  - ninja -C out/Default electron:hunspell_dictionaries_zip
   - ninja -C out/Default electron:electron_chromedriver_zip
   - ninja -C out/Default third_party/electron_node:headers
   - appveyor PushArtifact out/Default/dist.zip
+  - appveyor PushArtifact out/Default/shell_browser_ui_unittests.exe
   - appveyor PushArtifact out/Default/chromedriver.zip
   - appveyor PushArtifact out/ffmpeg/ffmpeg.zip
   - 7z a node_headers.zip out\Default\gen\node_headers
   - appveyor PushArtifact node_headers.zip
   - appveyor PushArtifact out/Default/mksnapshot.zip
+  - appveyor PushArtifact out/Default/hunspell_dictionaries.zip
   - appveyor PushArtifact out/Default/electron.lib
   - ps: >-
       if ($env:GN_CONFIG -eq 'release') {
@@ -103,6 +113,11 @@ build_script:
       if ($env:GN_CONFIG -eq 'release') {
         python electron\script\zip-symbols.py
         appveyor PushArtifact out/Default/symbols.zip
+      } else {
+        # It's useful to have pdb files when debugging testing builds that are
+        # built on CI.
+        7z a pdb.zip out\Default\*.pdb
+        appveyor PushArtifact pdb.zip
       }
   - python electron/script/zip_manifests/check-zip-manifest.py out/Default/dist.zip electron/script/zip_manifests/dist_zip.win.%TARGET_ARCH%.manifest
 test_script:

azure-pipelines-woa.yml

@@ -18,6 +18,14 @@ steps:
   env:
     APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
 
+- powershell: |
+    $localArtifactPath = "$pwd\src\out\Default\shell_browser_ui_unittests.exe"
+    $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/shell_browser_ui_unittests.exe"
+    Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
+  displayName: 'Download and extract native test executables for test'
+  env:
+    APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
+
 - powershell: |
     $localArtifactPath = "$pwd\ffmpeg.zip"
     $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/ffmpeg.zip"
@@ -77,8 +85,8 @@ steps:
     python electron\script\verify-ffmpeg.py --build-dir out\Default --source-root %cd% --ffmpeg-path out\ffmpeg
   displayName: 'Verify ffmpeg'
 
-- script: |
-    taskkill /F /IM electron.exe
-    taskkill /F /IM MicrosoftEdge.exe
+- 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

@@ -24,3 +24,6 @@ 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"
+
+# TODO: disabled due to crashes. re-enable.
+enable_osr = false

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/zip.py

@@ -46,13 +46,14 @@ def execute(argv):
     raise e
 
 def main(argv):
-  dist_zip, runtime_deps, target_cpu, target_os = argv
+  dist_zip, runtime_deps, target_cpu, target_os, flatten_val = argv
+  should_flatten = flatten_val == "true"
   dist_files = set()
   with open(runtime_deps) as f:
     for dep in f.readlines():
       dep = dep.strip()
       dist_files.add(dep)
-  if sys.platform == 'darwin':
+  if sys.platform == 'darwin' and not should_flatten:
     execute(['zip', '-r', '-y', dist_zip] + list(dist_files))
   else:
     with zipfile.ZipFile(dist_zip, 'w', zipfile.ZIP_DEFLATED, allowZip64=True) as z:
@@ -67,7 +68,7 @@ def main(argv):
           basename = os.path.basename(dep)
           dirname = os.path.dirname(dep)
           arcname = os.path.join(dirname, 'chrome-sandbox') if basename == 'chrome_sandbox' else dep
-          z.write(dep, arcname)
+          z.write(dep, os.path.basename(arcname) if should_flatten else arcname)
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))

buildflags/BUILD.gn

@@ -12,12 +12,14 @@ buildflag_header("buildflags") {
     "ENABLE_DESKTOP_CAPTURER=$enable_desktop_capturer",
     "ENABLE_RUN_AS_NODE=$enable_run_as_node",
     "ENABLE_OSR=$enable_osr",
+    "ENABLE_REMOTE_MODULE=$enable_remote_module",
     "ENABLE_VIEW_API=$enable_view_api",
     "ENABLE_PEPPER_FLASH=$enable_pepper_flash",
     "ENABLE_PDF_VIEWER=$enable_pdf_viewer",
     "ENABLE_TTS=$enable_tts",
     "ENABLE_COLOR_CHOOSER=$enable_color_chooser",
     "ENABLE_ELECTRON_EXTENSIONS=$enable_electron_extensions",
+    "ENABLE_BUILTIN_SPELLCHECKER=$enable_builtin_spellchecker",
     "ENABLE_PICTURE_IN_PICTURE=$enable_picture_in_picture",
     "OVERRIDE_LOCATION_PROVIDER=$enable_fake_location_provider",
   ]

buildflags/buildflags.gni

@@ -10,6 +10,8 @@ declare_args() {
 
   enable_osr = true
 
+  enable_remote_module = true
+
   enable_view_api = false
 
   enable_pdf_viewer = false
@@ -31,4 +33,7 @@ declare_args() {
 
   # Enable Chrome extensions support.
   enable_electron_extensions = false
+
+  # Enable Spellchecker support
+  enable_builtin_spellchecker = true
 }

chromium_src/BUILD.gn

@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/ui.gni")
+import("//components/spellcheck/spellcheck_build_features.gni")
 import("//electron/buildflags/buildflags.gni")
 import("//printing/buildflags/buildflags.gni")
 import("//third_party/widevine/cdm/widevine.gni")
@@ -43,10 +44,9 @@ static_library("chrome") {
     "//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/printing/printing_service.cc",
-    "//chrome/browser/printing/printing_service.h",
     "//chrome/browser/ssl/security_state_tab_helper.cc",
     "//chrome/browser/ssl/security_state_tab_helper.h",
+    "//chrome/browser/ssl/tls_deprecation_config.cc",
     "//chrome/browser/ui/autofill/popup_view_common.cc",
     "//chrome/browser/ui/autofill/popup_view_common.h",
     "//chrome/browser/win/chrome_process_finder.cc",
@@ -72,6 +72,14 @@ static_library("chrome") {
     sources += [
       "//chrome/browser/extensions/global_shortcut_listener_x11.cc",
       "//chrome/browser/extensions/global_shortcut_listener_x11.h",
+      "//chrome/browser/ui/views/status_icons/concat_menu_model.cc",
+      "//chrome/browser/ui/views/status_icons/concat_menu_model.h",
+      "//chrome/browser/ui/views/status_icons/status_icon_linux_dbus.cc",
+      "//chrome/browser/ui/views/status_icons/status_icon_linux_dbus.h",
+    ]
+    public_deps += [
+      "//components/dbus/menu",
+      "//components/dbus/thread_linux",
     ]
   }
 
@@ -135,10 +143,6 @@ 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",
     ]
   }
 
@@ -168,6 +172,8 @@ 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 += [
@@ -202,8 +208,6 @@ static_library("chrome") {
       "//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/mute_image_button.cc",
-      "//chrome/browser/ui/views/overlay/mute_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",
@@ -222,3 +226,52 @@ static_library("chrome") {
     ]
   }
 }
+
+# This source set is just so we don't have to depend on all of //chrome/browser
+# You may have to add new files here during the upgrade if //chrome/browser/spellchecker
+# gets more files
+source_set("chrome_spellchecker") {
+  sources = [
+    "//chrome/browser/spellchecker/spell_check_host_chrome_impl.cc",
+    "//chrome/browser/spellchecker/spell_check_host_chrome_impl.h",
+    "//chrome/browser/spellchecker/spellcheck_custom_dictionary.cc",
+    "//chrome/browser/spellchecker/spellcheck_custom_dictionary.h",
+    "//chrome/browser/spellchecker/spellcheck_factory.cc",
+    "//chrome/browser/spellchecker/spellcheck_factory.h",
+    "//chrome/browser/spellchecker/spellcheck_hunspell_dictionary.cc",
+    "//chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h",
+    "//chrome/browser/spellchecker/spellcheck_language_blacklist_policy_handler.cc",
+    "//chrome/browser/spellchecker/spellcheck_language_blacklist_policy_handler.h",
+    "//chrome/browser/spellchecker/spellcheck_language_policy_handler.cc",
+    "//chrome/browser/spellchecker/spellcheck_language_policy_handler.h",
+    "//chrome/browser/spellchecker/spellcheck_service.cc",
+    "//chrome/browser/spellchecker/spellcheck_service.h",
+  ]
+
+  if (has_spellcheck_panel) {
+    sources += [
+      "//chrome/browser/spellchecker/spell_check_panel_host_impl.cc",
+      "//chrome/browser/spellchecker/spell_check_panel_host_impl.h",
+    ]
+  }
+
+  if (use_browser_spellchecker) {
+    sources += [
+      "//chrome/browser/spellchecker/spelling_request.cc",
+      "//chrome/browser/spellchecker/spelling_request.h",
+    ]
+  }
+
+  deps = [
+    "//base:base_static",
+    "//components/language/core/browser",
+    "//components/spellcheck:buildflags",
+    "//components/sync",
+  ]
+
+  public_deps = [
+    "//components/spellcheck/browser",
+    "//components/spellcheck/common",
+    "//components/spellcheck/renderer",
+  ]
+}

chromium_src/chrome/browser/certificate_manager_model.cc

@@ -73,7 +73,7 @@ net::NSSCertDatabase* GetNSSCertDatabaseForResourceContext(
 void CertificateManagerModel::Create(content::BrowserContext* browser_context,
                                      const CreationCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  base::PostTaskWithTraits(
+  base::PostTask(
       FROM_HERE, {BrowserThread::IO},
       base::BindOnce(&CertificateManagerModel::GetCertDBOnIOThread,
                      browser_context->GetResourceContext(), callback));
@@ -146,7 +146,7 @@ void CertificateManagerModel::DidGetCertDBOnIOThread(
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   bool is_user_db_available = !!cert_db->GetPublicSlot();
-  base::PostTaskWithTraits(
+  base::PostTask(
       FROM_HERE, {BrowserThread::UI},
       base::BindOnce(&CertificateManagerModel::DidGetCertDBOnUIThread, cert_db,
                      is_user_db_available, callback));

chromium_src/chrome/browser/process_singleton_posix.cc

@@ -93,7 +93,6 @@
 #include "content/public/browser/browser_task_traits.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/network_interfaces.h"
-#include "ui/base/l10n/l10n_util.h"
 
 #if defined(TOOLKIT_VIEWS) && defined(OS_LINUX) && !defined(OS_CHROMEOS)
 #include "ui/views/linux_ui/linux_ui.h"
@@ -705,7 +704,7 @@ void ProcessSingleton::LinuxWatcher::SocketReader::FinishWithACK(
   if (shutdown(fd_, SHUT_WR) < 0)
     PLOG(ERROR) << "shutdown() failed";
 
-  base::PostTaskWithTraits(
+  base::PostTask(
       FROM_HERE, {BrowserThread::IO},
       base::BindOnce(&ProcessSingleton::LinuxWatcher::RemoveSocketReader,
                      parent_, this));
@@ -885,10 +884,9 @@ ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcessOrCreate() {
 
 void ProcessSingleton::StartListeningOnSocket() {
   watcher_ = new LinuxWatcher(this);
-  base::PostTaskWithTraits(
-      FROM_HERE, {BrowserThread::IO},
-      base::BindOnce(&ProcessSingleton::LinuxWatcher::StartListening, watcher_,
-                     sock_));
+  base::PostTask(FROM_HERE, {BrowserThread::IO},
+                 base::BindOnce(&ProcessSingleton::LinuxWatcher::StartListening,
+                                watcher_, sock_));
 }
 
 void ProcessSingleton::OnBrowserReady() {

chromium_src/chrome/browser/process_singleton_win.cc

@@ -23,7 +23,6 @@
 #include "chrome/browser/win/chrome_process_finder.h"
 #include "content/public/common/result_codes.h"
 #include "net/base/escape.h"
-#include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/win/hwnd_util.h"
 
 namespace {

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

@@ -108,7 +108,7 @@ These individual tutorials expand on topics discussed in the guide above.
 
 * [Synopsis](api/synopsis.md)
 * [Process Object](api/process.md)
-* [Supported Chrome Command Line Switches](api/chrome-command-line-switches.md)
+* [Supported Command Line Switches](api/command-line-switches.md)
 * [Environment Variables](api/environment-variables.md)
 * [Breaking API Changes](api/breaking-changes.md)
 
@@ -134,6 +134,7 @@ These individual tutorials expand on topics discussed in the guide above.
 * [MenuItem](api/menu-item.md)
 * [net](api/net.md)
 * [netLog](api/net-log.md)
+* [Notification](api/notification.md)
 * [powerMonitor](api/power-monitor.md)
 * [powerSaveBlocker](api/power-save-blocker.md)
 * [protocol](api/protocol.md)

docs/api/app.md

@@ -683,7 +683,7 @@ Overrides the current application's name.
 
 Returns `String` - The current application locale. Possible return values are documented [here](locales.md).
 
-To set the locale, you'll want to use a command line switch at app startup, which may be found [here](https://github.com/electron/electron/blob/master/docs/api/chrome-command-line-switches.md).
+To set the locale, you'll want to use a command line switch at app startup, which may be found [here](https://github.com/electron/electron/blob/master/docs/api/command-line-switches.md).
 
 **Note:** When distributing your packaged app, you have to also ship the
 `locales` folder.

docs/api/breaking-changes.md

@@ -6,6 +6,59 @@ Breaking changes will be documented here, and deprecation warnings added to JS c
 
 The `FIXME` string is used in code comments to denote things that should be fixed for future releases. See https://github.com/electron/electron/search?q=fixme
 
+## Planned Breaking API Changes (8.0)
+
+### Values sent over IPC are now serialized with Structured Clone Algorithm
+
+The algorithm used to serialize objects sent over IPC (through
+`ipcRenderer.send`, `ipcRenderer.sendSync`, `WebContents.send` and related
+methods) has been switched from a custom algorithm to V8's built-in [Structured
+Clone Algorithm][SCA], the same algorithm used to serialize messages for
+`postMessage`. This brings about a 2x performance improvement for large
+messages, but also brings some breaking changes in behavior.
+
+- Sending Functions, Promises, WeakMaps, WeakSets, or objects containing any
+  such values, over IPC will now throw an exception, instead of silently
+  converting the functions to `undefined`.
+```js
+// Previously:
+ipcRenderer.send('channel', { value: 3, someFunction: () => {} })
+// => results in { value: 3 } arriving in the main process
+
+// From Electron 8:
+ipcRenderer.send('channel', { value: 3, someFunction: () => {} })
+// => throws Error("() => {} could not be cloned.")
+```
+- `NaN`, `Infinity` and `-Infinity` will now be correctly serialized, instead
+  of being converted to `null`.
+- Objects containing cyclic references will now be correctly serialized,
+  instead of being converted to `null`.
+- `Set`, `Map`, `Error` and `RegExp` values will be correctly serialized,
+  instead of being converted to `{}`.
+- `BigInt` values will be correctly serialized, instead of being converted to
+  `null`.
+- Sparse arrays will be serialized as such, instead of being converted to dense
+  arrays with `null`s.
+- `Date` objects will be transferred as `Date` objects, instead of being
+  converted to their ISO string representation.
+- Typed Arrays (such as `Uint8Array`, `Uint16Array`, `Uint32Array` and so on)
+  will be transferred as such, instead of being converted to Node.js `Buffer`.
+- Node.js `Buffer` objects will be transferred as `Uint8Array`s. You can
+  convert a `Uint8Array` back to a Node.js `Buffer` by wrapping the underlying
+  `ArrayBuffer`:
+```js
+Buffer.from(value.buffer, value.byteOffset, value.byteLength)
+```
+
+Sending any objects that aren't native JS types, such as DOM objects (e.g.
+`Element`, `Location`, `DOMMatrix`), Node.js objects (e.g. `process.env`,
+`Stream`), or Electron objects (e.g. `WebContents`, `BrowserWindow`,
+`WebFrame`) is deprecated. In Electron 8, these objects will be serialized as
+before with a DeprecationWarning message, but starting in Electron 9, sending
+these kinds of objects will throw a 'could not be cloned' error.
+
+[SCA]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
+
 ## Planned Breaking API Changes (7.0)
 
 ### Node Headers URL

docs/api/browser-window.md

@@ -385,6 +385,8 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     * `accessibleTitle` String (optional) - An alternative title string provided only
       to accessibility tools such as screen readers. This string is not directly
       visible to users.
+    * `spellcheck` Boolean (optional) - Whether to enable the builtin spellchecker.
+      Default is `false`.
 
 When setting minimum or maximum window size with `minWidth`/`maxWidth`/
 `minHeight`/`maxHeight`, it only constrains the users. It won't prevent you from
@@ -664,7 +666,8 @@ Returns `BrowserWindow | null` - The window that is focused in this application,
 
 * `webContents` [WebContents](web-contents.md)
 
-Returns `BrowserWindow` - The window that owns the given `webContents`.
+Returns `BrowserWindow | null` - The window that owns the given `webContents`
+or `null` if the contents are not owned by a window.
 
 #### `BrowserWindow.fromBrowserView(browserView)`
 

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/command-line-switches.md

@@ -1,4 +1,4 @@
-# Supported Chrome Command Line Switches
+# Supported Command Line Switches
 
 > Command line switches supported by Electron.
 
@@ -181,6 +181,17 @@ logging level for all code in the source files under a `foo/bar` directory.
 
 This switch only works when `--enable-logging` is also passed.
 
+## --enable-api-filtering-logging
+
+Enables caller stack logging for the following APIs (filtering events):
+- `desktopCapturer.getSources()` / `desktop-capturer-get-sources`
+- `remote.require()` / `remote-require`
+- `remote.getGlobal()` / `remote-get-builtin`
+- `remote.getBuiltin()` / `remote-get-global`
+- `remote.getCurrentWindow()` / `remote-get-current-window`
+- `remote.getCurrentWebContents()` / `remote-get-current-web-contents`
+- `remote.getGuestWebContents()` / `remote-get-guest-web-contents`
+
 ## --no-sandbox
 
 Disables Chromium sandbox, which is now enabled by default.

docs/api/command-line.md

@@ -12,7 +12,7 @@ app.commandLine.hasSwitch('disable-gpu')
 ```
 
 For more information on what kinds of flags and switches you can use, check
-out the [Chrome Command Line Switches](./chrome-command-line-switches.md)
+out the [Command Line Switches](./command-line-switches.md)
 document.
 
 ### Instance Methods

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

@@ -119,6 +119,10 @@ Remove a extra parameter from the current set of parameters so that it will not
 
 See all of the current parameters being passed to the crash reporter.
 
+### `crashReporter.getCrashesDirectory()`
+
+Returns `String` - The directory where crashes are temporarily stored before being uploaded.
+
 ## Crash Report Payload
 
 The crash reporter will send the following data to the `submitURL` as

docs/api/debugger.md

@@ -50,7 +50,7 @@ Returns:
 
 * `event` Event
 * `method` String - Method name.
-* `params` unknown - Event parameters defined by the 'parameters'
+* `params` any - Event parameters defined by the 'parameters'
    attribute in the remote debugging protocol.
 
 Emitted whenever the debugging target issues an instrumentation event.

docs/api/ipc-main.md

@@ -77,6 +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`.

docs/api/ipc-renderer.md

@@ -55,9 +55,15 @@ Removes all listeners, or those of the specified `channel`.
 * `channel` String
 * `...args` any[]
 
-Send a message to the main process asynchronously via `channel`, you can also
-send arbitrary arguments. Arguments will be serialized as JSON internally and
-hence no functions or prototype chain will be included.
+Send an asynchronous message to the main process via `channel`, along with
+arguments. Arguments will be serialized with the [Structured Clone
+Algorithm][SCA], just like [`postMessage`][], so prototype chains will not be
+included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
+throw an exception.
+
+> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects is deprecated, and will begin throwing an exception
+> starting with Electron 9.
 
 The main process handles it by listening for `channel` with the
 [`ipcMain`](ipc-main.md) module.
@@ -69,9 +75,15 @@ The main process handles it by listening for `channel` with the
 
 Returns `Promise<any>` - Resolves with the response from the main process.
 
-Send a message to the main process asynchronously via `channel` and expect an
-asynchronous result. Arguments will be serialized as JSON internally and
-hence no functions or prototype chain will be included.
+Send a message to the main process via `channel` and expect a result
+asynchronously. Arguments will be serialized with the [Structured Clone
+Algorithm][SCA], just like [`postMessage`][], so prototype chains will not be
+included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
+throw an exception.
+
+> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects is deprecated, and will begin throwing an exception
+> starting with Electron 9.
 
 The main process should listen for `channel` with
 [`ipcMain.handle()`](ipc-main.md#ipcmainhandlechannel-listener).
@@ -97,15 +109,23 @@ ipcMain.handle('some-name', async (event, someArgument) => {
 
 Returns `any` - The value sent back by the [`ipcMain`](ipc-main.md) handler.
 
-Send a message to the main process synchronously via `channel`, you can also
-send arbitrary arguments. Arguments will be serialized in JSON internally and
-hence no functions or prototype chain will be included.
+Send a message to the main process via `channel` and expect a result
+synchronously. Arguments will be serialized with the [Structured Clone
+Algorithm][SCA], just like [`postMessage`][], so prototype chains will not be
+included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
+throw an exception.
+
+> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects is deprecated, and will begin throwing an exception
+> starting with Electron 9.
 
 The main process handles it by listening for `channel` with [`ipcMain`](ipc-main.md) module,
 and replies by setting `event.returnValue`.
 
-**Note:** Sending a synchronous message will block the whole renderer process,
-unless you know what you are doing you should never use it.
+> :warning: **WARNING**: Sending a synchronous message will block the whole
+> renderer process until the reply is received, so use this method only as a
+> last resort. It's much better to use the asynchronous version,
+> [`invoke()`](ipc-renderer.md#ipcrendererinvokechannel-args).
 
 ### `ipcRenderer.sendTo(webContentsId, channel, ...args)`
 
@@ -129,3 +149,5 @@ 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
+[SCA]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
+[`postMessage`]: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage

docs/api/net-log.md

@@ -15,7 +15,7 @@ app.on('ready', async () => {
 })
 ```
 
-See [`--log-net-log`](chrome-command-line-switches.md#--log-net-logpath) to log network events throughout the app's lifecycle.
+See [`--log-net-log`](command-line-switches.md#--log-net-logpath) to log network events throughout the app's lifecycle.
 
 **Note:** All methods unless specified can only be used after the `ready` event
 of the `app` module gets emitted.

docs/api/notification.md

@@ -35,8 +35,10 @@ Returns `Boolean` - Whether or not desktop notifications are supported on the cu
   * `silent` Boolean (optional) - Whether or not to emit an OS notification noise when showing the notification.
   * `icon` (String | [NativeImage](native-image.md)) (optional) - An icon to use in the notification.
   * `hasReply` Boolean (optional) _macOS_ - Whether or not to add an inline reply option to the notification.
+  * `timeoutType` String (optional) _Linux_ _Windows_ - The timeout duration of the notification. Can be 'default' or 'never'.
   * `replyPlaceholder` String (optional) _macOS_ - The placeholder to write in the inline reply input field.
   * `sound` String (optional) _macOS_ - The name of the sound file to play when the notification is shown.
+  * `urgency` String (optional) _Linux_ - The urgency level of the notification. Can be 'normal', 'critical', or 'low'.
   * `actions` [NotificationAction[]](structures/notification-action.md) (optional) _macOS_ - Actions to add to the notification. Please read the available actions and limitations in the `NotificationAction` documentation.
   * `closeButtonText` String (optional) _macOS_ - A custom title for the close button of an alert. An empty string will cause the default localized text to be used.
 
@@ -144,6 +146,18 @@ A `Boolean` property representing whether the notification is silent.
 
 A `Boolean` property representing whether the notification has a reply action.
 
+#### `notification.urgency` _Linux_
+
+A `String` property representing the urgency level of the notification. Can be 'normal', 'critical', or 'low'.
+
+Default is 'low' - see [NotifyUrgency](https://developer.gnome.org/notification-spec/#urgency-levels) for more information.
+
+#### `notification.timeoutType` _Linux_ _Windows_
+
+A `String` property representing the type of timeout duration for the notification. Can be 'default' or 'never'.
+
+If `timeoutType` is set to 'never', the notification never expires. It stays open until closed by the calling API or the user.
+
 #### `notification.actions`
 
 A [`NotificationAction[]`](structures/notification-action.md) property representing the actions of the notification.

docs/api/process.md

@@ -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/session.md

@@ -456,10 +456,38 @@ this session just before normal `preload` scripts run.
 Returns `String[]` an array of paths to preload scripts that have been
 registered.
 
+#### `ses.setSpellCheckerLanguages(languages)`
+
+* `languages` String[] - An array of language codes to enable the spellchecker for.
+
+The built in spellchecker does not automatically detect what language a user is typing in.  In order for the
+spell checker to correctly check their words you must call this API with an array of language codes.  You can
+get the list of supported language codes with the `ses.availableSpellCheckerLanguages` property.
+
+#### `ses.getSpellCheckerLanguages()`
+
+Returns `String[]` - An array of language codes the spellchecker is enabled for.  If this list is empty the spellchecker
+will fallback to using `en-US`.  By default on launch if this setting is an empty list Electron will try to populate this
+setting with the current OS locale.  This setting is persisted across restarts.
+
+#### `ses.setSpellCheckerDictionaryDownloadURL(url)`
+
+* `url` String - A base URL for Electron to download hunspell dictionaries from.
+
+By default Electron will download hunspell dictionaries from the Chromium CDN.  If you want to override this
+behavior you can use this API to point the dictionary downloader at your own hosted version of the hunspell
+dictionaries.  We publish a `hunspell_dictionaries.zip` file with each release which contains the files you need
+to host here.
+
 ### Instance Properties
 
 The following properties are available on instances of `Session`:
 
+#### `ses.availableSpellCheckerLanguages` _Readonly_
+
+A `String[]` array which consists of all the known available spell checker languages.  Providing a language
+code to the `setSpellCheckerLanaguages` API that isn't in this array will result in an error.
+
 #### `ses.cookies` _Readonly_
 
 A [`Cookies`](cookies.md) object for this session.

docs/api/structures/shared-worker-info.md

@@ -0,0 +1,4 @@
+# SharedWorkerInfo Object
+
+* `id` String - The unique id of the shared worker.
+* `url` String - The url of the shared worker.

docs/api/system-preferences.md

@@ -291,7 +291,7 @@ This API is only available on macOS 10.14 Mojave or newer.
     * `window-frame` - Window frame.
     * `window-text` - Text in windows.
   * On **macOS**
-    * `alternate-selected-control-text` - The text on a selected surface in a list or table.
+    * `alternate-selected-control-text` - The text on a selected surface in a list or table. _deprecated_
     * `control-background` - The background of a large interface element, such as a browser or table.
     * `control` - The surface of a control.
     * `control-text` -The text of a control that isn’t disabled.
@@ -310,7 +310,7 @@ This API is only available on macOS 10.14 Mojave or newer.
     * `selected-content-background` - The background for selected content in a key window or view.
     * `selected-control` - The surface of a selected control.
     * `selected-control-text` - The text of a selected control.
-    * `selected-menu-item` - The text of a selected menu.
+    * `selected-menu-item-text` - The text of a selected menu.
     * `selected-text-background` - The background of selected text.
     * `selected-text` - Selected text.
     * `separator` - A separator between different sections of content.
@@ -328,6 +328,8 @@ This API is only available on macOS 10.14 Mojave or newer.
 Returns `String` - The system color setting in RGB hexadecimal form (`#ABCDEF`).
 See the [Windows docs][windows-colors] and the [MacOS docs][macos-colors] for more details.
 
+The following colors are only available on macOS 10.14: `find-highlight`, `selected-content-background`, `separator`, `unemphasized-selected-content-background`, `unemphasized-selected-text-background`, and `unemphasized-selected-text`.
+
 [windows-colors]:https://msdn.microsoft.com/en-us/library/windows/desktop/ms724371(v=vs.85).aspx
 [macos-colors]:https://developer.apple.com/design/human-interface-guidelines/macos/visual-design/color#dynamic-system-colors
 

docs/api/touch-bar-button.md

@@ -8,16 +8,23 @@ Process: [Main](../tutorial/application-architecture.md#main-and-renderer-proces
 
 * `options` Object
   * `label` String (optional) - Button text.
+  * `accessibilityLabel` String (optional) - A short description of the button for use by screenreaders like VoiceOver.
   * `backgroundColor` String (optional) - Button background color in hex format,
     i.e `#ABCDEF`.
   * `icon` [NativeImage](native-image.md) | String (optional) - Button icon.
   * `iconPosition` String (optional) - Can be `left`, `right` or `overlay`. Defaults to `overlay`.
   * `click` Function (optional) - Function to call when the button is clicked.
 
+When defining `accessibilityLabel`, ensure you have considered macOS [best practices](https://developer.apple.com/documentation/appkit/nsaccessibilitybutton/1524910-accessibilitylabel?language=objc).
+
 ### Instance Properties
 
 The following properties are available on instances of `TouchBarButton`:
 
+#### `touchBarButton.accessibilityLabel`
+
+A `String` representing the description of the button to be read by a screen reader. Will only be read by screen readers if no label is set.
+
 #### `touchBarButton.label`
 
 A `String` representing the button's current text. Changing this value immediately updates the button

docs/api/touch-bar-label.md

@@ -8,8 +8,11 @@ Process: [Main](../tutorial/application-architecture.md#main-and-renderer-proces
 
 * `options` Object
   * `label` String (optional) - Text to display.
+  * `accessibilityLabel` String (optional) - A short description of the button for use by screenreaders like VoiceOver.
   * `textColor` String (optional) - Hex color of text, i.e `#ABCDEF`.
 
+When defining `accessibilityLabel`, ensure you have considered macOS [best practices](https://developer.apple.com/documentation/appkit/nsaccessibilitybutton/1524910-accessibilitylabel?language=objc).
+
 ### Instance Properties
 
 The following properties are available on instances of `TouchBarLabel`:
@@ -19,6 +22,10 @@ The following properties are available on instances of `TouchBarLabel`:
 A `String` representing the label's current text. Changing this value immediately updates the label in
 the touch bar.
 
+#### `touchBarLabel.accessibilityLabel`
+
+A `String` representing the description of the label to be read by a screen reader.
+
 #### `touchBarLabel.textColor`
 
 A `String` hex code representing the label's current text color. Changing this value immediately updates the

docs/api/web-contents.md

@@ -570,6 +570,9 @@ Returns:
   * `titleText` String - Title or alt text of the selection that the context
     was invoked on.
   * `misspelledWord` String - The misspelled word under the cursor, if any.
+  * `dictionarySuggestions` String[] - An array of suggested words to show the
+    user to replace the `misspelledWord`.  Only available if there is a misspelled
+    word and spellchecker is enabled.
   * `frameCharset` String - The character encoding of the frame on which the
     menu was invoked.
   * `inputFieldType` String - If the context menu was invoked on an input
@@ -705,8 +708,7 @@ Returns:
 * `line` Integer
 * `sourceId` String
 
-Emitted when the associated window logs a console message. Will not be emitted
-for windows with *offscreen rendering* enabled.
+Emitted when the associated window logs a console message.
 
 #### Event: 'preload-error'
 
@@ -1461,6 +1463,16 @@ Starts inspecting element at position (`x`, `y`).
 
 Opens the developer tools for the shared worker context.
 
+#### `contents.inspectSharedWorkerById(workerId)`
+
+* `workerId` String
+
+Inspects the shared worker based on its ID.
+
+#### `contents.getAllSharedWorkers()`
+
+Returns [`SharedWorkerInfo[]`](structures/shared-worker-info.md) - Information about all Shared Workers.
+
 #### `contents.inspectServiceWorker()`
 
 Opens the developer tools for the service worker context.
@@ -1470,9 +1482,15 @@ Opens the developer tools for the service worker context.
 * `channel` String
 * `...args` any[]
 
-Send an asynchronous message to renderer process via `channel`, you can also
-send arbitrary arguments. Arguments will be serialized in JSON internally and
-hence no functions or prototype chain will be included.
+Send an asynchronous message to the renderer process via `channel`, along with
+arguments. Arguments will be serialized with the [Structured Clone
+Algorithm][SCA], just like [`postMessage`][], so prototype chains will not be
+included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
+throw an exception.
+
+> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects is deprecated, and will begin throwing an exception
+> starting with Electron 9.
 
 The renderer process can handle the message by listening to `channel` with the
 [`ipcRenderer`](ipc-renderer.md) module.
@@ -1513,8 +1531,14 @@ app.on('ready', () => {
 * `...args` any[]
 
 Send an asynchronous message to a specific frame in a renderer process via
-`channel`. Arguments will be serialized
-as JSON internally and as such no functions or prototype chains will be included.
+`channel`, along with arguments. Arguments will be serialized with the
+[Structured Clone Algorithm][SCA], just like [`postMessage`][], so prototype
+chains will not be included. Sending Functions, Promises, Symbols, WeakMaps, or
+WeakSets will throw an exception.
+
+> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects is deprecated, and will begin throwing an exception
+> starting with Electron 9.
 
 The renderer process can handle the message by listening to `channel` with the
 [`ipcRenderer`](ipc-renderer.md) module.
@@ -1776,3 +1800,5 @@ 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
+[SCA]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
+[`postMessage`]: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage

docs/api/web-frame.md

@@ -74,6 +74,17 @@ Sets the maximum and minimum layout-based (i.e. non-visual) zoom level.
 
 Sets a provider for spell checking in input fields and text areas.
 
+If you want to use this method you must disable the builtin spellchecker when you
+construct the window.
+
+```js
+const mainWindow = new BrowserWindow({
+  webPreferences: {
+    spellcheck: false
+  }
+})
+```
+
 The `provider` must be an object that has a `spellCheck` method that accepts
 an array of individual words for spellchecking.
 The `spellCheck` function runs asynchronously and calls the `callback` function

docs/api/webview-tag.md

@@ -565,7 +565,7 @@ Prints `webview`'s web page. Same as `webContents.print([options])`.
   * `printSelectionOnly` Boolean (optional) - Whether to print selection only.
   * `landscape` Boolean (optional) - `true` for landscape, `false` for portrait.
 
-Returns `Promise<Buffer>` - Resolves with the generated PDF data.
+Returns `Promise<Uint8Array>` - Resolves with the generated PDF data.
 
 Prints `webview`'s web page as PDF, Same as `webContents.printToPDF(options)`.
 

docs/development/README.md

@@ -22,6 +22,5 @@ For guides on Electron app development, see
 * [Debugging on Windows](debug-instructions-windows.md)
 * [Debugging on macOS](debugging-instructions-macos.md)
 * [Setting Up Symbol Server in Debugger](setting-up-symbol-server.md)
-* [Upgrading Chromium](upgrading-chromium.md)
-* [Upgrading Crashpad](upgrading-crashpad.md)
+* [Patches](patches.md)
 * [Upgrading Node](upgrading-node.md)

docs/development/build-instructions-gn.md

@@ -46,7 +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
 ```
 
@@ -72,6 +72,7 @@ origin URLs.
 $ cd src/electron
 $ git remote remove origin
 $ git remote add origin https://github.com/electron/electron
+$ git checkout master
 $ git branch --set-upstream-to=origin/master
 $ cd -
 ```
@@ -226,20 +227,9 @@ under `src/` directory.
 
 ```sh
 $ ninja -C out/Debug third_party/electron_node:headers
-# Install the test modules with the generated headers
-$ (cd electron/spec && npm i --nodedir=../../out/Debug/gen/node_headers)
 ```
 
-Then, run Electron with `electron/spec` as the argument:
-
-```sh
-# on Mac:
-$ ./out/Debug/Electron.app/Contents/MacOS/Electron electron/spec
-# on Windows:
-$ ./out/Debug/electron.exe electron/spec
-# on Linux:
-$ ./out/Debug/electron electron/spec
-```
+You can now [run the tests](testing.md#unit-tests).
 
 If you're debugging something, it can be helpful to pass some extra flags to
 the Electron binary:

docs/development/issues.md

@@ -1,12 +1,12 @@
 # Issues In Electron
 
-* [How to Contribute in Issues](#how-to-contribute-in-issues)
+* [How to Contribute to Issues](#how-to-contribute-to-issues)
 * [Asking for General Help](#asking-for-general-help)
 * [Submitting a Bug Report](#submitting-a-bug-report)
 * [Triaging a Bug Report](#triaging-a-bug-report)
 * [Resolving a Bug Report](#resolving-a-bug-report)
 
-## How to Contribute in Issues
+## How to Contribute to Issues
 
 For any issue, there are fundamentally three ways an individual can
 contribute:
@@ -75,7 +75,7 @@ If you believe that you have found a bug in Electron, please fill out this
 form to the best of your ability.
 
 The two most important pieces of information needed to evaluate the report are
-a description of the bug and a simple test case to recreate it. It easier to fix
+a description of the bug and a simple test case to recreate it. It is easier to fix
 a bug if it can be reproduced.
 
 See [How to create a Minimal, Complete, and Verifiable example](https://stackoverflow.com/help/mcve).
@@ -92,7 +92,7 @@ are not helpful or professional. To many, such responses are annoying and
 unfriendly.
 
 Contributors are encouraged to solve issues collaboratively and help one
-another make progress. If encounter an issue that you feel is invalid, or
+another make progress. If you encounter an issue that you feel is invalid, or
 which contains incorrect information, explain *why* you feel that way with
 additional supporting context, and be willing to be convinced that you may
 be wrong. By doing so, we can often reach the correct outcome faster.

docs/development/patches.md

@@ -0,0 +1,89 @@
+# Patches in Electron
+
+Electron is built on two major upstream projects: Chromium and Node.js. Each of these projects has several of their own dependencies, too. We try our best to use these dependencies exactly as they are but sometimes we can't achieve our goals without patching those upstream dependencies to fit our use cases.
+
+## Patch justification
+
+Every patch in Electron is a maintenance burden. When upstream code changes, patches can break—sometimes without even a patch conflict or a compilation error. It's an ongoing effort to keep our patch set up-to-date and effective. So we strive to keep our patch count at a minimum. To that end, every patch must describe its reason for existence in its commit message. That reason must be one of the following:
+
+1. The patch is temporary, and is intended to be (or has been) committed upstream or otherwise eventually removed. Include a link to an upstream PR or code review if available, or a procedure for verifying whether the patch is still needed at a later date.
+2. The patch allows the code to compile in the Electron environment, but cannot be upstreamed because it's Electron-specific (e.g. patching out references to Chrome's `Profile`). Include reasoning about why the change cannot be implemented without a patch (e.g. by subclassing or copying the code).
+3. The patch makes Electron-specific changes in functionality which are fundamentally incompatible with upstream.
+
+In general, all the upstream projects we work with are friendly folks and are often happy to accept refactorings that allow the code in question to be compatible with both Electron and the upstream project. (See e.g. [this](https://chromium-review.googlesource.com/c/chromium/src/+/1637040) change in Chromium, which allowed us to remove a patch that did the same thing, or [this](https://github.com/nodejs/node/pull/22110) change in Node, which was a no-op for Node but fixed a bug in Electron.) **We should aim to upstream changes whenever we can, and avoid indefinite-lifetime patches**.
+
+## Patch system
+
+If you find yourself in the unfortunate position of having to make a change which can only be made through patching an upstream project, you'll need to know how to manage patches in Electron.
+
+All patches to upstream projects in Electron are contained in the `patches/` directory. Each subdirectory of `patches/` contains several patch files, along with a `.patches` file which lists the order in which the patches should be applied. Think of these files as making up a series of git commits that are applied on top of the upstream project after we check it out.
+
+```text
+patches
+├── config.json   <-- this describes which patchset directory is applied to what project
+├── chromium
+│   ├── .patches
+│   ├── accelerator.patch
+│   ├── add_contentgpuclient_precreatemessageloop_callback.patch
+│   ⋮
+├── node
+│   ├── .patches
+│   ├── add_openssl_is_boringssl_guard_to_oaep_hash_check.patch
+│   ├── build_add_gn_build_files.patch
+│   ⋮
+⋮
+```
+
+To help manage these patch sets, we provide two tools: `git-import-patches` and `git-export-patches`. `git-import-patches` imports a set of patch files into a git repository by applying each patch in the correct order and creating a commit for each one. `git-export-patches` does the reverse; it exports a series of git commits in a repository into a set of files in a directory and an accompanying `.patches` file.
+
+> Side note: the reason we use a `.patches` file to maintain the order of applied patches, rather than prepending a number like `001-` to each file, is because it reduces conflicts related to patch ordering. It prevents the situation where two PRs both add a patch at the end of the series with the same numbering and end up both getting merged resulting in a duplicate identifier, and it also reduces churn when a patch is added or deleted in the middle of the series.
+
+### Usage
+
+#### Adding a new patch
+```bash session
+$ cd src/third_party/electron_node
+$ vim some/code/file.cc
+$ git commit
+$ ../../electron/script/git-export-patches -o ../../electron/patches/node
+```
+
+> **NOTE**: `git-export-patches` ignores any uncommitted files, so you must create a commit if you want your changes to be exported. The subject line of the commit message will be used to derive the patch file name, and the body of the commit message should include the reason for the patch's existence.
+
+Re-exporting patches will sometimes cause shasums in unrelated patches to change. This is generally harmless and can be ignored (but go ahead and add those changes to your PR, it'll stop them from showing up for other people).
+
+#### Editing an existing patch
+```bash session
+$ cd src/v8
+$ vim some/code/file.cc
+$ git log
+# Find the commit sha of the patch you want to edit.
+$ git commit --fixup [COMMIT_SHA]
+$ git rebase --autosquash -i [COMMIT_SHA]^
+$ ../electron/script/git-export-patches -o ../electron/patches/v8
+```
+
+#### Removing a patch
+```bash session
+$ vim src/electron/patches/node/.patches
+# Delete the line with the name of the patch you want to remove
+$ cd src/third_party/electron_node
+$ git reset --hard refs/patches/upstream-head
+$ ../../electron/script/git-import-patches ../../electron/patches/node
+$ ../../electron/script/git-export-patches -o ../../electron/patches/node
+```
+
+Note that `git-import-patches` will mark the commit that was `HEAD` when it was run as `refs/patches/upstream-head`. This lets you keep track of which commits are from Electron patches (those that come after `refs/patches/upstream-head`) and which commits are in upstream (those before `refs/patches/upstream-head`).
+
+#### Resolving conflicts
+When updating an upstream dependency, patches may fail to apply cleanly. Often, the conflict can be resolved automatically by git with a 3-way merge. You can instruct `git-import-patches` to use the 3-way merge algorithm by passing the `-3` argument:
+
+```bash session
+$ cd src/third_party/electron_node
+# If the patch application failed midway through, you can reset it with:
+$ git am --abort
+# And then retry with 3-way merge:
+$ ../../electron/script/git-import-patches -3 ../../electron/patches/node
+```
+
+If `git-import-patches -3` encounters a merge conflict that it can't resolve automatically, it will pause and allow you to resolve the conflict manually. Once you have resolved the conflict, `git add` the resolved files and continue to apply the rest of the patches by running `git am --continue`.

docs/development/upgrading-chromium.md

@@ -1,166 +0,0 @@
-# Upgrading Chromium
-
-This is an overview of the steps needed to upgrade Chromium in Electron.
-
-- Upgrade libcc to a new Chromium version
-- Make Electron code compatible with the new libcc
-- Update Electron dependencies (crashpad, NodeJS, etc.) if needed
-- Make internal builds of libcc and electron
-- Update Electron docs if necessary
-
-
-## Upgrade `libcc` to a new Chromium version
-
-1. Get the code and initialize the project:
-  ```sh
-  $ git clone git@github.com:electron/libchromiumcontent.git
-  $ cd libchromiumcontent
-  $ ./script/bootstrap -v
-  ```
-2. Update the Chromium snapshot
-  - Choose a version number from [OmahaProxy](https://omahaproxy.appspot.com/)
-    and update the `VERSION` file with it
-    - This can be done manually by visiting OmahaProxy in a browser, or automatically:
-    - One-liner for the latest stable mac version: `curl -so- https://omahaproxy.appspot.com/mac > VERSION`
-    - One-liner for the latest win64 beta version: `curl -so- https://omahaproxy.appspot.com/all | grep "win64,beta" | awk -F, 'NR==1{print $3}' > VERSION`
-  - run `$ ./script/update`
-    - Brew some tea -- this may run for 30m or more.
-    - It will probably fail applying patches.
-3. Fix `*.patch` files in the `patches/` and `patches-mas/` folders.
-4. (Optional) `script/update` applies patches, but if multiple tries are needed
-   you can manually run the same script that `update` calls:
-   `$ ./script/apply-patches`
-  - There is a second script, `script/patch.py` that may be useful.
-    Read `./script/patch.py -h` for more information.
-5. Run the build when all patches can be applied without errors
-  - `$ ./script/build`
-  - If some patches are no longer compatible with the Chromium code,
-    fix compilation errors.
-6. When the build succeeds, create a `dist` for Electron
-  - `$ ./script/create-dist --no_zip`
-    - It will create a `dist/main` folder in the libcc repo's root.
-      You will need this to build Electron.
-7. (Optional) Update script contents if there are errors resulting from files
-   that were removed or renamed. (`--no_zip` prevents script from create `dist`
-   archives. You don't need them.)
-
-
-## Update Electron's code
-
-1. Get the code:
-  ```sh
-  $ git clone git@github.com:electron/electron.git
-  $ cd electron
-  ```
-2. If you have libcc built on your machine in its own repo,
-   tell Electron to use it:
-  ```sh
-  $ ./script/bootstrap.py -v \
-    --libcc_source_path <libcc_folder>/src \
-    --libcc_shared_library_path <libcc_folder>/shared_library \
-    --libcc_static_library_path <libcc_folder>/static_library
-  ```
-3. If you haven't yet built libcc but it's already supposed to be upgraded
-   to a new Chromium, bootstrap Electron as usual
-   `$ ./script/bootstrap.py -v`
-  - Ensure that libcc submodule (`vendor/libchromiumcontent`) points to the
-    right revision
-
-4. Set `CLANG_REVISION` in `script/update-clang.sh` to match the version
-   Chromium is using.
-  - Located in `electron/libchromiumcontent/src/tools/clang/scripts/update.py`
-
-5. Checkout Chromium if you haven't already:
-  - https://chromium.googlesource.com/chromium/src.git/+/{VERSION}/tools/clang/scripts/update.py
-    - (Replace the `{VERSION}` placeholder in the url above to the Chromium
-      version libcc uses.)
-6. Build Electron.
-  - Try to build Debug version first: `$ ./script/build.py -c D`
-  - You will need it to run tests
-7. Fix compilation and linking errors
-8. Ensure that Release build can be built too
-  - `$ ./script/build.py -c R`
-  - Often the Release build will have different linking errors that you'll
-    need to fix.
-  - Some compilation and linking errors are caused by missing source/object
-    files in the libcc `dist`
-9. Update `./script/create-dist` in the libcc repo, recreate a `dist`, and
-   run Electron bootstrap script once again.
-
-### Tips for fixing compilation errors
-- Fix build config errors first
-- Fix fatal errors first, like missing files and errors related to compiler
-  flags or defines
-- Try to identify complex errors as soon as possible.
-  - Ask for help if you're not sure how to fix them
-- Disable all Electron features, fix the build, then enable them one by one
-- Add more build flags to disable features in build-time.
-
-When a Debug build of Electron succeeds, run the tests:
-`$ npm run test`
-Fix the failing tests.
-
-Follow all the steps above to fix Electron code on all supported platforms.
-
-
-## Updating Crashpad
-
-If there are any compilation errors related to the Crashpad, it probably means
-you need to update the fork to a newer revision. See
-[Upgrading Crashpad](upgrading-crashpad.md)
-for instructions on how to do that.
-
-
-## Updating NodeJS
-
-Upgrade `vendor/node` to the Node release that corresponds to the v8 version
-used in the new Chromium release. See the v8 versions in Node on
-
-See [Upgrading Node](upgrading-node.md)
-for instructions on this.
-
-## Verify ffmpeg support
-
-Electron ships with a version of `ffmpeg` that includes proprietary codecs by
-default. A version without these codecs is built and distributed with each
-release as well. Each Chrome upgrade should verify that switching this version
-is still supported.
-
-You can verify Electron's support for multiple `ffmpeg` builds by loading the
-following page. It should work with the default `ffmpeg` library distributed
-with Electron and not work with the `ffmpeg` library built without proprietary
-codecs.
-
-```html
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Proprietary Codec Check</title>
-  </head>
-  <body>
-    <p>Checking if Electron is using proprietary codecs by loading video from http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4</p>
-    <p id="outcome"></p>
-    <video style="display:none" src="http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4" autoplay></video>
-    <script>
-      const video = document.querySelector('video')
-      video.addEventListener('error', ({ target }) => {
-        if (target.error.code === target.error.MEDIA_ERR_SRC_NOT_SUPPORTED) {
-          document.querySelector('#outcome').textContent = 'Not using proprietary codecs, video emitted source not supported error event.'
-        } else {
-          document.querySelector('#outcome').textContent = `Unexpected error: ${target.error.code}`
-        }
-      })
-      video.addEventListener('playing', () => {
-        document.querySelector('#outcome').textContent = 'Using proprietary codecs, video started playing.'
-      })
-    </script>
-  </body>
-</html>
-```
-
-## Useful links
-
-- [Chrome Release Schedule](https://www.chromium.org/developers/calendar)
-- [OmahaProxy](http://omahaproxy.appspot.com)
-- [Chromium Issue Tracker](https://bugs.chromium.org/p/chromium)

docs/development/upgrading-crashpad.md

@@ -1,39 +0,0 @@
-# Upgrading Crashpad
-
-1. Get the version of crashpad that we're going to use.
-  - `libcc/src/third_party/crashpad/README.chromium` will have a line `Revision:` with a checksum
-    - We need to check out the corresponding branch.
-  - Clone Google's crashpad (https://chromium.googlesource.com/crashpad/crashpad)
-    - `git clone https://chromium.googlesource.com/crashpad/crashpad`
-  - Check out the branch with the revision checksum:
-      - `git checkout <revision checksum>`
-  - Add electron's crashpad fork as a remote
-    - `git remote add electron https://github.com/electron/crashpad`
-  - Check out a new branch for the update
-    - `git checkout -b electron-crashpad-vA.B.C.D`
-    - `A.B.C.D` is the Chromium version found in `libcc/VERSION`
-       and will be something like `62.0.3202.94`
-
-2. Make a checklist of the Electron patches that need to be applied
-  with `git log --oneline`
-    - Or view https://github.com/electron/crashpad/commits/previous-branch-name
-
-3. For each patch:
-  - In `electron-crashpad-vA.B.C.D`, cherry-pick the patch's checksum
-    - `git cherry-pick <checksum>`
-  - Resolve any conflicts
-  - Make sure it builds then add, commit, and push work to electron's crashpad fork
-    - `git push electron electron-crashpad-vA.B.C.D`
-
-4. Update Electron to build the new crashpad:
-  - `cd vendor/crashpad`
-  - `git fetch`
-  - `git checkout electron-crashpad-v62.0.3202.94`
-5. Regenerate Ninja files against both targets
-  - From Electron root's root, run `script/update.py`
-  - `script/build.py -c D --target=crashpad_client`
-  - `script/build.py -c D --target=crashpad_handler`
-  - Both should build with no errors
-6. Push changes to submodule reference
-  - (From electron root) `git add vendor/crashpad`
-  - `git push origin upgrade-to-chromium-62`

docs/fiddles/communication/two-processes/asynchronous-messages/index.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Asynchronous messages</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <div>
+            <button id="async-msg">Ping</button>
+            <span id="async-reply"></span>
+          </div>
+          <p>Using <code>ipc</code> to send messages between processes asynchronously is the preferred method since it will return when finished without blocking other operations in the same process.</p>
+
+          <p>This example sends a "ping" from this process (renderer) to the main process. The main process then replies with "pong".</p>
+        </div>
+      </div>
+    </div>
+    <script>
+      // You can also require other files to run in this process
+      require('./renderer.js')
+    </script>
+  </body>
+</html>

docs/fiddles/communication/two-processes/asynchronous-messages/main.js

@@ -0,0 +1,29 @@
+const { app, BrowserWindow, ipcMain } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Asynchronous messages',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})
+
+ipcMain.on('asynchronous-message', (event, arg) => {
+  event.sender.send('asynchronous-reply', 'pong')
+})

docs/fiddles/communication/two-processes/asynchronous-messages/renderer.js

@@ -0,0 +1,12 @@
+const { ipcRenderer } = require('electron')
+
+const asyncMsgBtn = document.getElementById('async-msg')
+
+asyncMsgBtn.addEventListener('click', () => {
+  ipcRenderer.send('asynchronous-message', 'ping')
+})
+
+ipcRenderer.on('asynchronous-reply', (event, arg) => {
+  const message = `Asynchronous message reply: ${arg}`
+  document.getElementById('async-reply').innerHTML = message
+})

docs/fiddles/media/screenshot/take-screenshot/index.html

@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <h3>Take a Screenshot</h3>
+      <i>Supports: Win, macOS, Linux <span>|</span> Process: Renderer</i>
+       <div>
+        <div>
+          <div>
+            <button id="screen-shot">View Demo</button>
+            <span id="screenshot-path"></span>
+          </div>
+          <p>This demo uses the <code>desktopCapturer</code> module to gather screens in use and select the entire screen and take a snapshot of what is visible.</p>
+          <p>Clicking the demo button will take a screenshot of your current screen and open it in your default viewer.</p>
+        </div>
+    </div>
+    <script>
+      // You can also require other files to run in this process
+      require('./renderer.js')
+    </script>
+  </body>
+</html>

docs/fiddles/media/screenshot/take-screenshot/main.js

@@ -0,0 +1,25 @@
+const { BrowserWindow, app } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 300,
+    title: 'Take a Screenshot',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/media/screenshot/take-screenshot/renderer.js

@@ -0,0 +1,43 @@
+const { desktopCapturer } = require('electron')
+const { screen, shell } = require('electron').remote
+
+const fs = require('fs')
+const os = require('os')
+const path = require('path')
+
+const screenshot = document.getElementById('screen-shot')
+const screenshotMsg = document.getElementById('screenshot-path')
+
+screenshot.addEventListener('click', (event) => {
+  screenshotMsg.textContent = 'Gathering screens...'
+  const thumbSize = determineScreenShotSize()
+  const options = { types: ['screen'], thumbnailSize: thumbSize }
+
+  desktopCapturer.getSources(options, (error, sources) => {
+    if (error) return console.log(error)
+
+    sources.forEach((source) => {
+      const sourceName = source.name.toLowerCase()
+      if (sourceName === 'entire screen' || sourceName === 'screen 1') {
+        const screenshotPath = path.join(os.tmpdir(), 'screenshot.png')
+
+        fs.writeFile(screenshotPath, source.thumbnail.toPNG(), (error) => {
+          if (error) return console.log(error)
+          shell.openExternal(`file://${screenshotPath}`)
+
+          const message = `Saved screenshot to: ${screenshotPath}`
+          screenshotMsg.textContent = message
+        })
+      }
+    })
+  })
+})
+
+function determineScreenShotSize () {
+  const screenSize = screen.getPrimaryDisplay().workAreaSize
+  const maxDimension = Math.max(screenSize.width, screenSize.height)
+  return {
+    width: maxDimension * window.devicePixelRatio,
+    height: maxDimension * window.devicePixelRatio
+  }
+}

docs/fiddles/menus/customize-menus/index.html

@@ -0,0 +1,128 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <title>Customize Menus</title>
+  </head>
+
+  <body>
+    <div>
+      <h1>Customize Menus</h1>
+
+      <h3>
+        The <code>Menu</code> and <code>MenuItem</code> modules can be used to
+        create custom native menus.
+      </h3>
+
+      <p>
+        There are two kinds of menus: the application (top) menu and context
+        (right-click) menu.
+      </p>
+
+      <p>
+        Open the
+        <a href="http://electron.atom.io/docs/api/menu"
+          >full API documentation<span
+            >(opens in new window)</span
+          ></a
+        >
+        in your browser.
+      </p>
+    </div>
+
+    <div>
+      <h2>Create an application menu</h2>
+      <div>
+        <div>
+          <p>
+            The <code>Menu</code> and <code>MenuItem</code> modules allow you to
+            customize your application menu. If you don't set any menu, Electron
+            will generate a minimal menu for your app by default.
+          </p>
+
+          <p>
+            If you click the 'View' option in the application menu and then the
+            'App Menu Demo', you'll see an information box displayed.
+          </p>
+
+          <div>
+            <h2>ProTip</h2>
+            <strong>Know operating system menu differences.</strong>
+            <p>
+              When designing an app for multiple operating systems it's
+              important to be mindful of the ways application menu conventions
+              differ on each operating system.
+            </p>
+            <p>
+              For instance, on Windows, accelerators are set with an
+              <code>&</code>. Naming conventions also vary, like between
+              "Settings" or "Preferences". Below are resources for learning
+              operating system specific standards.
+            </p>
+            <ul>
+              <li>
+                <a
+                  href="https://developer.apple.com/macos/human-interface-guidelines/menus/menu-anatomy/"
+                  >macOS<span
+                    >(opens in new window)</span
+                  ></a
+                >
+              </li>
+              <li>
+                <a
+                  href="https://msdn.microsoft.com/en-us/library/windows/desktop/bb226797(v=vs.85).aspx"
+                  >Windows<span
+                    >(opens in new window)</span
+                  ></a
+                >
+              </li>
+              <li>
+                <a
+                  href="https://developer.gnome.org/hig/stable/menu-bars.html.en"
+                  >Linux<span
+                    >(opens in new window)</span
+                  ></a
+                >
+              </li>
+            </ul>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <div>
+      <h2>Create a context menu</h2>
+      <div>
+        <div>
+          <div>
+            <button id="context-menu">View Demo</button>
+          </div>
+          <p>
+            A context, or right-click, menu can be created with the
+            <code>Menu</code> and <code>MenuItem</code> modules as well. You can
+            right-click anywhere in this app or click the demo button to see an
+            example context menu.
+          </p>
+
+          <p>
+            In this demo we use the <code>ipcRenderer</code> module to show the
+            context menu when explicitly calling it from the renderer process.
+          </p>
+          <p>
+            See the full
+            <a
+              href="http://electron.atom.io/docs/api/web-contents/#event-context-menu"
+              >context-menu event documentation</a
+            >
+            for all the available properties.
+          </p>
+        </div>
+      </div>
+    </div>
+
+    <script>
+      // You can also require other files to run in this process
+      require("./renderer.js");
+    </script>
+  </body>
+</html>

docs/fiddles/menus/customize-menus/main.js

@@ -0,0 +1,360 @@
+// Modules to control application life and create native browser window
+const {
+  BrowserWindow,
+  Menu,
+  MenuItem,
+  ipcMain,
+  app,
+  shell,
+  dialog
+} = require('electron')
+
+const menu = new Menu()
+menu.append(new MenuItem({ label: 'Hello' }))
+menu.append(new MenuItem({ type: 'separator' }))
+menu.append(
+  new MenuItem({ label: 'Electron', type: 'checkbox', checked: true })
+)
+
+const template = [
+  {
+    label: 'Edit',
+    submenu: [
+      {
+        label: 'Undo',
+        accelerator: 'CmdOrCtrl+Z',
+        role: 'undo'
+      },
+      {
+        label: 'Redo',
+        accelerator: 'Shift+CmdOrCtrl+Z',
+        role: 'redo'
+      },
+      {
+        type: 'separator'
+      },
+      {
+        label: 'Cut',
+        accelerator: 'CmdOrCtrl+X',
+        role: 'cut'
+      },
+      {
+        label: 'Copy',
+        accelerator: 'CmdOrCtrl+C',
+        role: 'copy'
+      },
+      {
+        label: 'Paste',
+        accelerator: 'CmdOrCtrl+V',
+        role: 'paste'
+      },
+      {
+        label: 'Select All',
+        accelerator: 'CmdOrCtrl+A',
+        role: 'selectall'
+      }
+    ]
+  },
+  {
+    label: 'View',
+    submenu: [
+      {
+        label: 'Reload',
+        accelerator: 'CmdOrCtrl+R',
+        click: (item, focusedWindow) => {
+          if (focusedWindow) {
+            // on reload, start fresh and close any old
+            // open secondary windows
+            if (focusedWindow.id === 1) {
+              BrowserWindow.getAllWindows().forEach(win => {
+                if (win.id > 1) win.close()
+              })
+            }
+            focusedWindow.reload()
+          }
+        }
+      },
+      {
+        label: 'Toggle Full Screen',
+        accelerator: (() => {
+          if (process.platform === 'darwin') {
+            return 'Ctrl+Command+F'
+          } else {
+            return 'F11'
+          }
+        })(),
+        click: (item, focusedWindow) => {
+          if (focusedWindow) {
+            focusedWindow.setFullScreen(!focusedWindow.isFullScreen())
+          }
+        }
+      },
+      {
+        label: 'Toggle Developer Tools',
+        accelerator: (() => {
+          if (process.platform === 'darwin') {
+            return 'Alt+Command+I'
+          } else {
+            return 'Ctrl+Shift+I'
+          }
+        })(),
+        click: (item, focusedWindow) => {
+          if (focusedWindow) {
+            focusedWindow.toggleDevTools()
+          }
+        }
+      },
+      {
+        type: 'separator'
+      },
+      {
+        label: 'App Menu Demo',
+        click: function (item, focusedWindow) {
+          if (focusedWindow) {
+            const options = {
+              type: 'info',
+              title: 'Application Menu Demo',
+              buttons: ['Ok'],
+              message:
+                'This demo is for the Menu section, showing how to create a clickable menu item in the application menu.'
+            }
+            dialog.showMessageBox(focusedWindow, options, function () {})
+          }
+        }
+      }
+    ]
+  },
+  {
+    label: 'Window',
+    role: 'window',
+    submenu: [
+      {
+        label: 'Minimize',
+        accelerator: 'CmdOrCtrl+M',
+        role: 'minimize'
+      },
+      {
+        label: 'Close',
+        accelerator: 'CmdOrCtrl+W',
+        role: 'close'
+      },
+      {
+        type: 'separator'
+      },
+      {
+        label: 'Reopen Window',
+        accelerator: 'CmdOrCtrl+Shift+T',
+        enabled: false,
+        key: 'reopenMenuItem',
+        click: () => {
+          app.emit('activate')
+        }
+      }
+    ]
+  },
+  {
+    label: 'Help',
+    role: 'help',
+    submenu: [
+      {
+        label: 'Learn More',
+        click: () => {
+          shell.openExternal('http://electron.atom.io')
+        }
+      }
+    ]
+  }
+]
+
+function addUpdateMenuItems (items, position) {
+  if (process.mas) return
+
+  const version = app.getVersion()
+  const updateItems = [
+    {
+      label: `Version ${version}`,
+      enabled: false
+    },
+    {
+      label: 'Checking for Update',
+      enabled: false,
+      key: 'checkingForUpdate'
+    },
+    {
+      label: 'Check for Update',
+      visible: false,
+      key: 'checkForUpdate',
+      click: () => {
+        require('electron').autoUpdater.checkForUpdates()
+      }
+    },
+    {
+      label: 'Restart and Install Update',
+      enabled: true,
+      visible: false,
+      key: 'restartToUpdate',
+      click: () => {
+        require('electron').autoUpdater.quitAndInstall()
+      }
+    }
+  ]
+
+  items.splice.apply(items, [position, 0].concat(updateItems))
+}
+
+function findReopenMenuItem () {
+  const menu = Menu.getApplicationMenu()
+  if (!menu) return
+
+  let reopenMenuItem
+  menu.items.forEach(item => {
+    if (item.submenu) {
+      item.submenu.items.forEach(item => {
+        if (item.key === 'reopenMenuItem') {
+          reopenMenuItem = item
+        }
+      })
+    }
+  })
+  return reopenMenuItem
+}
+
+if (process.platform === 'darwin') {
+  const name = app.getName()
+  template.unshift({
+    label: name,
+    submenu: [
+      {
+        label: `About ${name}`,
+        role: 'about'
+      },
+      {
+        type: 'separator'
+      },
+      {
+        label: 'Services',
+        role: 'services',
+        submenu: []
+      },
+      {
+        type: 'separator'
+      },
+      {
+        label: `Hide ${name}`,
+        accelerator: 'Command+H',
+        role: 'hide'
+      },
+      {
+        label: 'Hide Others',
+        accelerator: 'Command+Alt+H',
+        role: 'hideothers'
+      },
+      {
+        label: 'Show All',
+        role: 'unhide'
+      },
+      {
+        type: 'separator'
+      },
+      {
+        label: 'Quit',
+        accelerator: 'Command+Q',
+        click: () => {
+          app.quit()
+        }
+      }
+    ]
+  })
+
+  // Window menu.
+  template[3].submenu.push(
+    {
+      type: 'separator'
+    },
+    {
+      label: 'Bring All to Front',
+      role: 'front'
+    }
+  )
+
+  addUpdateMenuItems(template[0].submenu, 1)
+}
+
+if (process.platform === 'win32') {
+  const helpMenu = template[template.length - 1].submenu
+  addUpdateMenuItems(helpMenu, 0)
+}
+// Keep a global reference of the window object, if you don't, the window will
+// be closed automatically when the JavaScript object is garbage collected.
+let mainWindow
+
+function createWindow () {
+  // Create the browser window.
+  mainWindow = new BrowserWindow({
+    width: 800,
+    height: 600,
+    webPreferences: {
+      nodeIntegration: true
+    }
+  })
+
+  // and load the index.html of the app.
+  mainWindow.loadFile('index.html')
+
+  // Open the DevTools.
+  // mainWindow.webContents.openDevTools()
+
+  // Emitted when the window is closed.
+  mainWindow.on('closed', function () {
+    // Dereference the window object, usually you would store windows
+    // in an array if your app supports multi windows, this is the time
+    // when you should delete the corresponding element.
+    mainWindow = null
+  })
+}
+
+// This method will be called when Electron has finished
+// initialization and is ready to create browser windows.
+// Some APIs can only be used after this event occurs.
+app.on('ready', () => {
+  createWindow()
+  const menu = Menu.buildFromTemplate(template)
+  Menu.setApplicationMenu(menu)
+})
+
+// Quit when all windows are closed.
+app.on('window-all-closed', function () {
+  // On OS X it is common for applications and their menu bar
+  // to stay active until the user quits explicitly with Cmd + Q
+  const reopenMenuItem = findReopenMenuItem()
+  if (reopenMenuItem) reopenMenuItem.enabled = true
+
+  if (process.platform !== 'darwin') {
+    app.quit()
+  }
+})
+
+app.on('activate', function () {
+  // On OS X it's common to re-create a window in the app when the
+  // dock icon is clicked and there are no other windows open.
+  if (mainWindow === null) {
+    createWindow()
+  }
+})
+
+app.on('browser-window-created', (event, win) => {
+  const reopenMenuItem = findReopenMenuItem()
+  if (reopenMenuItem) reopenMenuItem.enabled = false
+
+  win.webContents.on('context-menu', (e, params) => {
+    menu.popup(win, params.x, params.y)
+  })
+})
+
+ipcMain.on('show-context-menu', event => {
+  const win = BrowserWindow.fromWebContents(event.sender)
+  menu.popup(win)
+})
+
+// In this file you can include the rest of your app's specific main process
+// code. You can also put them in separate files and require them here.

docs/fiddles/menus/customize-menus/renderer.js

@@ -0,0 +1,8 @@
+const { ipcRenderer } = require('electron')
+
+// Tell main process to show the menu when demo button is clicked
+const contextMenuBtn = document.getElementById('context-menu')
+
+contextMenuBtn.addEventListener('click', () => {
+  ipcRenderer.send('show-context-menu')
+})

docs/fiddles/menus/shortcuts/index.html

@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+	<meta charset="UTF-8">
+	<title>Keyboard Shortcuts</title>
+</head>
+
+<body>
+	<div>
+		<h1>Keyboard Shortcuts</h1>
+
+		<h3>The <code>globalShortcut</code> and <code>Menu</code> modules can be used to define keyboard shortcuts.</h3>
+
+		<p>
+			In Electron, keyboard shortcuts are called accelerators.
+			They can be assigned to actions in your application's Menu,
+			or they can be assigned globally so they'll be triggered even when
+			your app doesn't have keyboard focus.
+		</p>
+
+		<p>
+			Open the full documentation for the
+			<a href="http://electron.atom.io/docs/api/menu">Menu</a>,
+			<a href="http://electron.atom.io/docs/api/accelerator">Accelerator</a>,
+			and
+			<a href="http://electron.atom.io/docs/api/global-shortcut">globalShortcut</a>
+			APIs in your browser.
+		</p>
+
+	</div>
+
+	<div>
+		<div>
+			<div>
+				<p>
+					To try this demo, press <kbd>CommandOrControl+Alt+K</kbd> on your
+					keyboard.
+				</p>
+
+				<p>
+					Global shortcuts are detected even when the app doesn't have
+					keyboard focus, and they must be registered after the app's
+					`ready` event is emitted.
+				</p>
+
+				<div>
+					<h2>ProTip</h2>
+					<strong>Avoid overriding system-wide keyboard shortcuts.</strong>
+					<p>
+						When registering global shortcuts, it's important to be aware of
+						existing defaults in the target operating system, so as not to
+						override any existing behaviors. For an overview of each
+						operating system's keyboard shortcuts, view these documents:
+					</p>
+
+					<ul>
+						<li><a
+								href="https://developer.apple.com/library/mac/documentation/UserExperience/Conceptual/OSXHIGuidelines/Keyboard.html">macOS</a>
+						</li>
+						<li><a
+								href="http://windows.microsoft.com/en-us/windows-10/keyboard-shortcuts">Windows</a></li>
+						<li><a
+								href="https://developer.gnome.org/hig/stable/keyboard-input.html.en">Linux</a></li>
+					</ul>
+				</div>
+
+			</div>
+		</div>
+	</div>
+</body>
+
+</html>

docs/fiddles/menus/shortcuts/main.js

@@ -0,0 +1,69 @@
+// Modules to control application life and create native browser window
+const { app, BrowserWindow, globalShortcut, dialog } = require('electron')
+
+// Keep a global reference of the window object, if you don't, the window will
+// be closed automatically when the JavaScript object is garbage collected.
+let mainWindow
+
+function createWindow () {
+  // Create the browser window.
+  mainWindow = new BrowserWindow({
+    width: 800,
+    height: 600,
+    webPreferences: {
+      nodeIntegration: true
+    }
+  })
+
+  globalShortcut.register('CommandOrControl+Alt+K', () => {
+    dialog.showMessageBox({
+      type: 'info',
+      message: 'Success!',
+      detail: 'You pressed the registered global shortcut keybinding.',
+      buttons: ['OK']
+    })
+  })
+
+  // and load the index.html of the app.
+  mainWindow.loadFile('index.html')
+
+  // Open the DevTools.
+  // mainWindow.webContents.openDevTools()
+
+  // Emitted when the window is closed.
+  mainWindow.on('closed', function () {
+    // Dereference the window object, usually you would store windows
+    // in an array if your app supports multi windows, this is the time
+    // when you should delete the corresponding element.
+    mainWindow = null
+  })
+}
+
+// This method will be called when Electron has finished
+// initialization and is ready to create browser windows.
+// Some APIs can only be used after this event occurs.
+app.on('ready', createWindow)
+
+// Quit when all windows are closed.
+app.on('window-all-closed', function () {
+  // On OS X it is common for applications and their menu bar
+  // to stay active until the user quits explicitly with Cmd + Q
+  if (process.platform !== 'darwin') {
+    app.quit()
+  }
+})
+
+app.on('activate', function () {
+  // On OS X it's common to re-create a window in the app when the
+  // dock icon is clicked and there are no other windows open.
+  if (mainWindow === null) {
+    createWindow()
+  }
+})
+
+app.on('will-quit', function () {
+  globalShortcut.unregisterAll()
+})
+
+// In this file you can include the rest of your app's specific main process
+// code. You can also put them in separate files and require them here.

docs/fiddles/native-ui/drag-and-drop/index.html

@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <title>Drag and drop files</title>
+  </head>
+
+  <body>
+    <div>
+      <h1>Drag and drop files</h1>
+      <div>Supports: Win, macOS, Linux <span>|</span> Process: Both</div>
+      <h3>
+        Electron supports dragging files and content out from web content into
+        the operating system's world.
+      </h3>
+
+      <p>
+        Open the
+        <a href="https://electronjs.org/docs/tutorial/native-file-drag-drop">
+          full API documentation (opens in new window)
+        </a>
+        in your browser.
+      </p>
+    </div>
+
+    <div>
+      <div>
+        <h2>Dragging files</h2>
+        <div>
+          <div>
+            <a href="#" id="drag-file-link">Drag Demo</a>
+          </div>
+          <p>
+            Click and drag the link above to copy the renderer process
+            javascript file on to your machine.
+          </p>
+
+          <p>
+            In this demo, the <code>webContents.startDrag()</code> API is called
+            in response to the <code>ondragstart</code> event.
+          </p>
+          <h5>Renderer Process</h5>
+          <pre><code>
+const {ipcRenderer} = require('electron')
+
+const dragFileLink = document.getElementById('drag-file-link')
+
+dragFileLink.addEventListener('dragstart', (event) => {
+  event.preventDefault()
+  ipcRenderer.send('ondragstart', __filename)
+})
+        </code></pre>
+          <h5>Main Process</h5>
+          <pre>
+            <code>
+const {ipcMain} = require('electron')
+const path = require('path')
+
+ipcMain.on('ondragstart', (event, filepath) => {
+  const iconName = 'codeIcon.png'
+  event.sender.startDrag({
+    file: filepath,
+    icon: path.join(__dirname, iconName)
+  })
+})
+            </code></pre>
+        </div>
+      </div>
+    </div>
+
+    <script>
+      // You can also require other files to run in this process
+      require("./renderer.js");
+    </script>
+  </body>
+</html>

docs/fiddles/native-ui/drag-and-drop/main.js

@@ -0,0 +1,64 @@
+// Modules to control application life and create native browser window
+const { app, BrowserWindow, ipcMain, nativeImage } = require('electron')
+// Keep a global reference of the window object, if you don't, the window will
+// be closed automatically when the JavaScript object is garbage collected.
+let mainWindow
+
+function createWindow () {
+  // Create the browser window.
+  mainWindow = new BrowserWindow({
+    width: 800,
+    height: 600,
+    webPreferences: {
+      nodeIntegration: true
+    }
+  })
+
+  // and load the index.html of the app.
+  mainWindow.loadFile('index.html')
+
+  // Open the DevTools.
+  // mainWindow.webContents.openDevTools()
+
+  // Emitted when the window is closed.
+  mainWindow.on('closed', function () {
+    // Dereference the window object, usually you would store windows
+    // in an array if your app supports multi windows, this is the time
+    // when you should delete the corresponding element.
+    mainWindow = null
+  })
+}
+
+// This method will be called when Electron has finished
+// initialization and is ready to create browser windows.
+// Some APIs can only be used after this event occurs.
+app.on('ready', createWindow)
+
+// Quit when all windows are closed.
+app.on('window-all-closed', function () {
+  // On OS X it is common for applications and their menu bar
+  // to stay active until the user quits explicitly with Cmd + Q
+  if (process.platform !== 'darwin') {
+    app.quit()
+  }
+})
+
+app.on('activate', function () {
+  // On OS X it's common to re-create a window in the app when the
+  // dock icon is clicked and there are no other windows open.
+  if (mainWindow === null) {
+    createWindow()
+  }
+})
+
+ipcMain.on('ondragstart', (event, filepath) => {
+  const icon = nativeImage.createFromDataURL('data:image/png;base64,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')
+
+  event.sender.startDrag({
+    file: filepath,
+    icon
+  })
+})
+
+// In this file you can include the rest of your app's specific main process
+// code. You can also put them in separate files and require them here.

docs/fiddles/native-ui/drag-and-drop/renderer.js

@@ -0,0 +1,21 @@
+const { ipcRenderer } = require('electron')
+const shell = require('electron').shell
+
+const links = document.querySelectorAll('a[href]')
+
+Array.prototype.forEach.call(links, (link) => {
+  const url = link.getAttribute('href')
+  if (url.indexOf('http') === 0) {
+    link.addEventListener('click', (e) => {
+      e.preventDefault()
+      shell.openExternal(url)
+    })
+  }
+})
+
+const dragFileLink = document.getElementById('drag-file-link')
+
+dragFileLink.addEventListener('dragstart', event => {
+  event.preventDefault()
+  ipcRenderer.send('ondragstart', __filename)
+})

docs/fiddles/native-ui/external-links-file-manager/path-in-file-manager/index.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Open Path in File Manager</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <p>This demonstrates using the <code>shell</code> module to open the system file manager at a particular location.</p>
+          <p>Clicking the demo button will open your file manager at the root.</p>
+          <div>
+            <button id="open-file-manager">View Demo</button>
+          </div>
+        </div>
+      </div>
+    </div>
+  </body>
+  <script>
+    require('./renderer.js')
+  </script>
+</html>

docs/fiddles/native-ui/external-links-file-manager/path-in-file-manager/main.js

@@ -0,0 +1,25 @@
+const { app, BrowserWindow } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Open Path in File Manager',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/native-ui/external-links-file-manager/path-in-file-manager/renderer.js

@@ -0,0 +1,8 @@
+const { shell } = require('electron')
+const os = require('os')
+
+const fileManagerBtn = document.getElementById('open-file-manager')
+
+fileManagerBtn.addEventListener('click', (event) => {
+  shell.showItemInFolder(os.homedir())
+})

docs/fiddles/native-ui/notifications/basic-notification/index.html

@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <h3>Basic notification</h3>
+      <i>Supports: Win 7+, macOS, Linux (that supports libnotify)<span>|</span> Process: Renderer</i>
+      <div>
+        <div>
+          <button id="basic-noti">View demo</button>
+        </div>
+        <p>This demo demonstrates a basic notification. Text only.</p>
+      </div>
+    </div>
+    <script>
+      // You can also require other files to run in this process
+      require('./renderer.js')
+    </script>
+  </body>
+</html>

docs/fiddles/native-ui/notifications/basic-notification/main.js

@@ -0,0 +1,25 @@
+const { BrowserWindow, app } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 300,
+    title: 'Basic Notification',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/native-ui/notifications/basic-notification/renderer.js

@@ -0,0 +1,14 @@
+const notification = {
+  title: 'Basic Notification',
+  body: 'Short message part'
+}
+
+const notificationButton = document.getElementById('basic-noti')
+
+notificationButton.addEventListener('click', () => {
+  const myNotification = new window.Notification(notification.title, notification)
+
+  myNotification.onclick = () => {
+    console.log('Notification clicked')
+  }
+})

docs/fiddles/native-ui/notifications/notification-with-image/index.html

@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <h3>Notification with image</h3>
+      <i>Supports: Win 7+, macOS, Linux (that supports libnotify)<span>|</span> Process: Renderer</i>
+      <div>
+        <div>
+          <button id="advanced-noti">View demo</button>
+        </div>
+        <p>This demo demonstrates an advanced notification. Both text and image.</p>
+      </div>
+    </div>
+    <script>
+      // You can also require other files to run in this process
+      require('./renderer.js')
+    </script>
+  </body>
+</html>

docs/fiddles/native-ui/notifications/notification-with-image/main.js

@@ -0,0 +1,25 @@
+const { BrowserWindow, app } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 300,
+    title: 'Advanced Notification',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/native-ui/notifications/notification-with-image/renderer.js

@@ -0,0 +1,14 @@
+const notification = {
+  title: 'Notification with image',
+  body: 'Short message plus a custom image',
+  icon: 'https://raw.githubusercontent.com/electron/electron-api-demos/v2.0.2/assets/img/programming.png'
+}
+const notificationButton = document.getElementById('advanced-noti')
+
+notificationButton.addEventListener('click', () => {
+  const myNotification = new window.Notification(notification.title, notification)
+
+  myNotification.onclick = () => {
+    console.log('Notification clicked')
+  }
+})

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

@@ -17,4 +17,4 @@ app.on('ready', () => {
 
   mainWindow = new BrowserWindow({ width, height })
   mainWindow.loadURL('https://electronjs.org')
-})
+})

docs/fiddles/system/clipboard/copy/index.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Clipboard copy</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <div>
+            <button id="copy-to">Copy</button>
+            <input id="copy-to-input" aria-label="Click copy" placeholder="Click copy."></input>
+          </div>
+          <p>In this example we copy a phrase to the clipboard. After clicking 'Copy' use the text area to paste (CMD + V or CTRL + V) the phrase from the clipboard.</p>
+        </div>
+      </div>
+    </div>
+  </body>
+  <script>
+    require('./renderer.js')
+  </script>
+</html>

docs/fiddles/system/clipboard/copy/main.js

@@ -0,0 +1,25 @@
+const { app, BrowserWindow } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Clipboard copy',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/system/clipboard/copy/renderer.js

@@ -0,0 +1,10 @@
+const { clipboard } = require('electron')
+
+const copyBtn = document.getElementById('copy-to')
+const copyInput = document.getElementById('copy-to-input')
+
+copyBtn.addEventListener('click', () => {
+  if (copyInput.value !== '') copyInput.value = ''
+  copyInput.placeholder = 'Copied! Paste here to see.'
+  clipboard.writeText('Electron Demo!')
+})

docs/fiddles/system/clipboard/paste/index.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Clipboard paste</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <div>
+            <button id="paste-to">Paste</button>
+            <span id="paste-from"></span>
+          </div>
+          <p>In this example we copy a string to the clipboard and then paste the results into a message above.</p>
+        </div>
+      </div>
+    </div>
+  </body>
+  <script>
+    require('./renderer.js')
+  </script>
+</html>

docs/fiddles/system/clipboard/paste/main.js

@@ -0,0 +1,25 @@
+const { app, BrowserWindow } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Clipboard paste',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/system/clipboard/paste/renderer.js

@@ -0,0 +1,9 @@
+const { clipboard } = require('electron')
+
+const pasteBtn = document.getElementById('paste-to')
+
+pasteBtn.addEventListener('click', () => {
+  clipboard.writeText('What a demo!')
+  const message = `Clipboard contents: ${clipboard.readText()}`
+  document.getElementById('paste-from').innerHTML = message
+})

docs/fiddles/system/system-information/get-version-information/index.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Get version information</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <div>
+            <button id="version-info">View Demo</button>
+            <span id="got-version-info"></span>
+          </div>
+          <p>The <code>process</code> module is built into Node.js (therefore you can use this in both the main and renderer processes) and in Electron apps this object has a few more useful properties on it.</p>
+          <p>The example below gets the version of Electron in use by the app.</p>
+          <p>See the <a href="http://electron.atom.io/docs/api/process">process documentation <span>(opens in new window)</span></a> for more.</p>
+        </div>
+      </div>
+    </div>
+  </body>
+  <script>
+    require('./renderer.js')
+  </script>
+</html>

docs/fiddles/system/system-information/get-version-information/main.js

@@ -0,0 +1,25 @@
+const { app, BrowserWindow } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Get version information',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.on('ready', () => {
+  createWindow()
+})

docs/fiddles/system/system-information/get-version-information/renderer.js

@@ -0,0 +1,8 @@
+const versionInfoBtn = document.getElementById('version-info')
+
+const electronVersion = process.versions.electron
+
+versionInfoBtn.addEventListener('click', () => {
+  const message = `This app is using Electron version: ${electronVersion}`
+  document.getElementById('got-version-info').innerHTML = message
+})