chore: handle patch merge conflicts

shell/browser/api/electron_api_cookies.cc

@@ -80,6 +80,11 @@ struct Converter<net::CookieChangeCause> {
                                    const net::CookieChangeCause& val) {
     switch (val) {
       case net::CookieChangeCause::INSERTED:
+        return gin::StringToV8(isolate, "inserted");
+      case net::CookieChangeCause::INSERTED_NO_CHANGE_OVERWRITE:
+        return gin::StringToV8(isolate, "inserted-no-change-overwrite");
+      case net::CookieChangeCause::INSERTED_NO_VALUE_CHANGE_OVERWRITE:
+        return gin::StringToV8(isolate, "inserted-no-value-change-overwrite");
       case net::CookieChangeCause::EXPLICIT:
         return gin::StringToV8(isolate, "explicit");
       case net::CookieChangeCause::OVERWRITE:
@@ -274,6 +279,17 @@ std::string StringToCookieSameSite(const std::string* str_ptr,
   return "";
 }
 
+bool IsDeletion(net::CookieChangeCause cause) {
+  switch (cause) {
+    case net::CookieChangeCause::INSERTED:
+    case net::CookieChangeCause::INSERTED_NO_CHANGE_OVERWRITE:
+    case net::CookieChangeCause::INSERTED_NO_VALUE_CHANGE_OVERWRITE:
+      return false;
+    default:
+      return true;
+  }
+}
+
 }  // namespace
 
 gin::DeprecatedWrapperInfo Cookies::kWrapperInfo = {gin::kEmbedderNativeGin};
@@ -437,10 +453,10 @@ v8::Local<v8::Promise> Cookies::FlushStore(v8::Isolate* isolate) {
 void Cookies::OnCookieChanged(const net::CookieChangeInfo& change) {
   v8::Isolate* isolate = JavascriptEnvironment::GetIsolate();
   v8::HandleScope scope(isolate);
+  bool is_deletion = IsDeletion(change.cause);
   Emit("changed", gin::ConvertToV8(isolate, change.cookie),
        gin::ConvertToV8(isolate, change.cause),
-       gin::ConvertToV8(isolate,
-                        change.cause != net::CookieChangeCause::INSERTED));
+       gin::ConvertToV8(isolate, is_deletion));
 }
 
 // static

shell/browser/api/electron_api_menu.cc

@@ -68,6 +68,10 @@ Menu::Menu(gin::Arguments* args)
 }
 
 Menu::~Menu() {
+  RemoveModelObserver();
+}
+
+void Menu::RemoveModelObserver() {
   if (model_) {
     model_->RemoveObserver(this);
   }

shell/browser/api/electron_api_menu.h

@@ -61,6 +61,10 @@ class Menu : public gin::Wrappable<Menu>,
   ElectronMenuModel* model() const { return model_.get(); }
 
  protected:
+  // Remove this instance as an observer from the model. Called by derived
+  // class destructors to ensure observer is removed before platform-specific
+  // cleanup that may trigger model callbacks.
+  void RemoveModelObserver();
   // Returns a new callback which keeps references of the JS wrapper until the
   // passed |callback| is called.
   base::OnceClosure BindSelfToClosure(base::OnceClosure callback);

shell/browser/api/electron_api_menu_mac.mm

@@ -51,7 +51,11 @@ namespace electron::api {
 
 MenuMac::MenuMac(gin::Arguments* args) : Menu{args} {}
 
-MenuMac::~MenuMac() = default;
+MenuMac::~MenuMac() {
+  // Must remove observer before destroying menu_controller_, which holds
+  // a weak reference to model_
+  RemoveModelObserver();
+}
 
 void MenuMac::PopupAt(BaseWindow* window,
                       std::optional<WebFrameMain*> frame,

shell/browser/api/electron_api_msix_updater.cc

@@ -0,0 +1,528 @@
+// Copyright (c) 2025 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/browser/api/electron_api_msix_updater.h"
+
+#include <sstream>
+#include <string_view>
+#include "base/environment.h"
+#include "base/functional/bind.h"
+#include "base/logging.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/task/single_thread_task_runner.h"
+#include "base/task/task_traits.h"
+#include "base/task/thread_pool.h"
+#include "content/public/browser/browser_task_traits.h"
+#include "content/public/browser/browser_thread.h"
+#include "shell/browser/browser.h"
+#include "shell/browser/javascript_environment.h"
+#include "shell/browser/native_window.h"
+#include "shell/browser/window_list.h"
+#include "shell/common/gin_helper/dictionary.h"
+#include "shell/common/gin_helper/error_thrower.h"
+#include "shell/common/gin_helper/promise.h"
+#include "shell/common/node_includes.h"
+
+#if BUILDFLAG(IS_WIN)
+#include <appmodel.h>
+#include <roapi.h>
+#include <windows.applicationmodel.h>
+#include <windows.foundation.collections.h>
+#include <windows.foundation.h>
+#include <windows.foundation.metadata.h>
+#include <windows.h>
+#include <windows.management.deployment.h>
+// Use pre-generated C++/WinRT headers from //third_party/nearby instead of the
+// SDK's cppwinrt headers, which are missing implementation files.
+#include "third_party/nearby/src/internal/platform/implementation/windows/generated/winrt/Windows.ApplicationModel.h"
+#include "third_party/nearby/src/internal/platform/implementation/windows/generated/winrt/Windows.Foundation.Collections.h"
+#include "third_party/nearby/src/internal/platform/implementation/windows/generated/winrt/Windows.Foundation.Metadata.h"
+#include "third_party/nearby/src/internal/platform/implementation/windows/generated/winrt/Windows.Foundation.h"
+#include "third_party/nearby/src/internal/platform/implementation/windows/generated/winrt/Windows.Management.Deployment.h"
+#include "third_party/nearby/src/internal/platform/implementation/windows/generated/winrt/base.h"
+
+#include "base/win/scoped_com_initializer.h"
+#endif
+
+namespace electron {
+
+const bool debug_msix_updater =
+    base::Environment::Create()->HasVar("ELECTRON_DEBUG_MSIX_UPDATER");
+
+}  // namespace electron
+
+namespace {
+
+#if BUILDFLAG(IS_WIN)
+// Helper function for debug logging
+void DebugLog(std::string_view log_msg) {
+  if (electron::debug_msix_updater)
+    LOG(INFO) << std::string(log_msg);
+}
+
+// Check if the process has a package identity
+bool HasPackageIdentity() {
+  UINT32 length = 0;
+  LONG rc = GetCurrentPackageFullName(&length, NULL);
+  return rc != APPMODEL_ERROR_NO_PACKAGE;
+}
+
+// POD struct to hold MSIX update options
+struct UpdateMsixOptions {
+  bool defer_registration = false;
+  bool developer_mode = false;
+  bool force_shutdown = false;
+  bool force_target_shutdown = false;
+  bool force_update_from_any_version = false;
+};
+
+// POD struct to hold package registration options
+struct RegisterPackageOptions {
+  bool force_shutdown = false;
+  bool force_target_shutdown = false;
+  bool force_update_from_any_version = false;
+};
+
+// Performs MSIX update on IO thread
+void DoUpdateMsix(const std::string& package_uri,
+                  UpdateMsixOptions opts,
+                  scoped_refptr<base::SingleThreadTaskRunner> reply_runner,
+                  gin_helper::Promise<void> promise) {
+  DebugLog("DoUpdateMsix: Starting");
+
+  using winrt::Windows::Foundation::AsyncStatus;
+  using winrt::Windows::Foundation::Uri;
+  using winrt::Windows::Management::Deployment::AddPackageOptions;
+  using winrt::Windows::Management::Deployment::DeploymentResult;
+  using winrt::Windows::Management::Deployment::PackageManager;
+
+  std::string error;
+  std::wstring packageUriString =
+      std::wstring(package_uri.begin(), package_uri.end());
+  Uri uri{packageUriString};
+  PackageManager packageManager;
+  AddPackageOptions packageOptions;
+
+  // Use the pre-parsed options
+  packageOptions.DeferRegistrationWhenPackagesAreInUse(opts.defer_registration);
+  packageOptions.DeveloperMode(opts.developer_mode);
+  packageOptions.ForceAppShutdown(opts.force_shutdown);
+  packageOptions.ForceTargetAppShutdown(opts.force_target_shutdown);
+  packageOptions.ForceUpdateFromAnyVersion(opts.force_update_from_any_version);
+
+  {
+    std::ostringstream oss;
+    oss << "Calling AddPackageByUriAsync... URI: " << package_uri;
+    DebugLog(oss.str());
+  }
+  {
+    std::ostringstream oss;
+    oss << "Update options - deferRegistration: " << opts.defer_registration
+        << ", developerMode: " << opts.developer_mode
+        << ", forceShutdown: " << opts.force_shutdown
+        << ", forceTargetShutdown: " << opts.force_target_shutdown
+        << ", forceUpdateFromAnyVersion: "
+        << opts.force_update_from_any_version;
+    DebugLog(oss.str());
+  }
+
+  auto deploymentOperation =
+      packageManager.AddPackageByUriAsync(uri, packageOptions);
+
+  if (!deploymentOperation) {
+    DebugLog("Deployment operation is null");
+    error =
+        "Deployment is NULL. See "
+        "http://go.microsoft.com/fwlink/?LinkId=235160 for diagnosing.";
+  } else {
+    if (!opts.force_shutdown && !opts.force_target_shutdown) {
+      DebugLog("Waiting for deployment...");
+      deploymentOperation.get();
+      DebugLog("Deployment finished.");
+
+      if (deploymentOperation.Status() == AsyncStatus::Error) {
+        auto deploymentResult{deploymentOperation.GetResults()};
+        std::string errorText = winrt::to_string(deploymentResult.ErrorText());
+        std::string errorCode =
+            std::to_string(static_cast<int>(deploymentOperation.ErrorCode()));
+        error = errorText + " (" + errorCode + ")";
+        {
+          std::ostringstream oss;
+          oss << "Deployment failed: " << error;
+          DebugLog(oss.str());
+        }
+      } else if (deploymentOperation.Status() == AsyncStatus::Canceled) {
+        DebugLog("Deployment canceled");
+        error = "Deployment canceled";
+      } else if (deploymentOperation.Status() == AsyncStatus::Completed) {
+        DebugLog("MSIX Deployment completed.");
+      } else {
+        error = "Deployment status unknown";
+        DebugLog("Deployment status unknown");
+      }
+    } else {
+      // At this point, we can not await the deployment because we require a
+      // shutdown of the app to continue, so we do a fire and forget. When the
+      // deployment process tries ot shutdown the app, the process waits for us
+      // to finish here. But to finish we need to shutdow.  That leads to a 30s
+      // dealock, till we forcefully get shutdown by the OS.
+      DebugLog(
+          "Deployment initiated. Force shutdown or target shutdown requested. "
+          "Good bye!");
+    }
+  }
+
+  // Post result back
+  reply_runner->PostTask(
+      FROM_HERE, base::BindOnce(
+                     [](gin_helper::Promise<void> promise, std::string error) {
+                       if (error.empty()) {
+                         promise.Resolve();
+                       } else {
+                         promise.RejectWithErrorMessage(error);
+                       }
+                     },
+                     std::move(promise), error));
+}
+
+// Performs package registration on IO thread
+void DoRegisterPackage(const std::string& family_name,
+                       RegisterPackageOptions opts,
+                       scoped_refptr<base::SingleThreadTaskRunner> reply_runner,
+                       gin_helper::Promise<void> promise) {
+  DebugLog("DoRegisterPackage: Starting");
+
+  using winrt::Windows::Foundation::AsyncStatus;
+  using winrt::Windows::Foundation::Collections::IIterable;
+  using winrt::Windows::Management::Deployment::DeploymentOptions;
+  using winrt::Windows::Management::Deployment::PackageManager;
+
+  std::string error;
+  auto familyNameH = winrt::to_hstring(family_name);
+  PackageManager packageManager;
+  DeploymentOptions deploymentOptions = DeploymentOptions::None;
+
+  // Use the pre-parsed options (no V8 access needed)
+  if (opts.force_shutdown) {
+    deploymentOptions |= DeploymentOptions::ForceApplicationShutdown;
+  }
+  if (opts.force_target_shutdown) {
+    deploymentOptions |= DeploymentOptions::ForceTargetApplicationShutdown;
+  }
+  if (opts.force_update_from_any_version) {
+    deploymentOptions |= DeploymentOptions::ForceUpdateFromAnyVersion;
+  }
+
+  // Create empty collections for dependency and optional packages
+  IIterable<winrt::hstring> emptyDependencies{nullptr};
+  IIterable<winrt::hstring> emptyOptional{nullptr};
+
+  {
+    std::ostringstream oss;
+    oss << "Calling RegisterPackageByFamilyNameAsync... FamilyName: "
+        << family_name;
+    DebugLog(oss.str());
+  }
+  {
+    std::ostringstream oss;
+    oss << "Registration options - forceShutdown: " << opts.force_shutdown
+        << ", forceTargetShutdown: " << opts.force_target_shutdown
+        << ", forceUpdateFromAnyVersion: "
+        << opts.force_update_from_any_version;
+    DebugLog(oss.str());
+  }
+
+  auto deploymentOperation = packageManager.RegisterPackageByFamilyNameAsync(
+      familyNameH, emptyDependencies, deploymentOptions, nullptr,
+      emptyOptional);
+
+  if (!deploymentOperation) {
+    error =
+        "Deployment is NULL. See "
+        "http://go.microsoft.com/fwlink/?LinkId=235160 for diagnosing.";
+  } else {
+    if (!opts.force_shutdown && !opts.force_target_shutdown) {
+      DebugLog("Waiting for registration...");
+      deploymentOperation.get();
+      DebugLog("Registration finished.");
+
+      if (deploymentOperation.Status() == AsyncStatus::Error) {
+        auto deploymentResult{deploymentOperation.GetResults()};
+        std::string errorText = winrt::to_string(deploymentResult.ErrorText());
+        std::string errorCode =
+            std::to_string(static_cast<int>(deploymentOperation.ErrorCode()));
+        error = errorText + " (" + errorCode + ")";
+        {
+          std::ostringstream oss;
+          oss << "Registration failed: " << error;
+          DebugLog(oss.str());
+        }
+      } else if (deploymentOperation.Status() == AsyncStatus::Canceled) {
+        DebugLog("Registration canceled");
+        error = "Registration canceled";
+      } else if (deploymentOperation.Status() == AsyncStatus::Completed) {
+        DebugLog("MSIX Registration completed.");
+      } else {
+        error = "Registration status unknown";
+        DebugLog("Registration status unknown");
+      }
+    } else {
+      // At this point, we can not await the registration because we require a
+      // shutdown of the app to continue, so we do a fire and forget. When the
+      // registration process tries ot shutdown the app, the process waits for
+      // us to finish here. But to finish we need to shutdown. That leads to a
+      // 30s dealock, till we forcefully get shutdown by the OS.
+      DebugLog(
+          "Registration initiated. Force shutdown or target shutdown "
+          "requested. Good bye!");
+    }
+  }
+
+  // Post result back to UI thread
+  reply_runner->PostTask(
+      FROM_HERE, base::BindOnce(
+                     [](gin_helper::Promise<void> promise, std::string error) {
+                       if (error.empty()) {
+                         promise.Resolve();
+                       } else {
+                         promise.RejectWithErrorMessage(error);
+                       }
+                     },
+                     std::move(promise), error));
+}
+#endif
+
+// Update MSIX package
+v8::Local<v8::Promise> UpdateMsix(const std::string& package_uri,
+                                  gin_helper::Dictionary options) {
+  v8::Isolate* isolate = electron::JavascriptEnvironment::GetIsolate();
+  gin_helper::Promise<void> promise(isolate);
+  v8::Local<v8::Promise> handle = promise.GetHandle();
+
+#if BUILDFLAG(IS_WIN)
+  if (!HasPackageIdentity()) {
+    DebugLog("UpdateMsix: The process has no package identity");
+    promise.RejectWithErrorMessage("The process has no package identity.");
+    return handle;
+  }
+
+  // Parse options on UI thread (where V8 is available)
+  UpdateMsixOptions opts;
+  options.Get("deferRegistration", &opts.defer_registration);
+  options.Get("developerMode", &opts.developer_mode);
+  options.Get("forceShutdown", &opts.force_shutdown);
+  options.Get("forceTargetShutdown", &opts.force_target_shutdown);
+  options.Get("forceUpdateFromAnyVersion", &opts.force_update_from_any_version);
+
+  {
+    std::ostringstream oss;
+    oss << "UpdateMsix called with URI: " << package_uri;
+    DebugLog(oss.str());
+  }
+
+  // Post to IO thread
+  content::GetIOThreadTaskRunner({})->PostTask(
+      FROM_HERE,
+      base::BindOnce(&DoUpdateMsix, package_uri, opts,
+                     base::SingleThreadTaskRunner::GetCurrentDefault(),
+                     std::move(promise)));
+#else
+  promise.RejectWithErrorMessage(
+      "MSIX updates are only supported on Windows with identity.");
+#endif
+
+  return handle;
+}
+
+// Register MSIX package
+v8::Local<v8::Promise> RegisterPackage(const std::string& family_name,
+                                       gin_helper::Dictionary options) {
+  v8::Isolate* isolate = electron::JavascriptEnvironment::GetIsolate();
+  gin_helper::Promise<void> promise(isolate);
+  v8::Local<v8::Promise> handle = promise.GetHandle();
+
+#if BUILDFLAG(IS_WIN)
+  if (!HasPackageIdentity()) {
+    DebugLog("RegisterPackage: The process has no package identity");
+    promise.RejectWithErrorMessage("The process has no package identity.");
+    return handle;
+  }
+
+  // Parse options on UI thread (where V8 is available)
+  RegisterPackageOptions opts;
+  options.Get("forceShutdown", &opts.force_shutdown);
+  options.Get("forceTargetShutdown", &opts.force_target_shutdown);
+  options.Get("forceUpdateFromAnyVersion", &opts.force_update_from_any_version);
+
+  {
+    std::ostringstream oss;
+    oss << "RegisterPackage called with family name: " << family_name;
+    DebugLog(oss.str());
+  }
+
+  // Post to IO thread with POD options (no V8 objects)
+  content::GetIOThreadTaskRunner({})->PostTask(
+      FROM_HERE,
+      base::BindOnce(&DoRegisterPackage, family_name, opts,
+                     base::SingleThreadTaskRunner::GetCurrentDefault(),
+                     std::move(promise)));
+#else
+  promise.RejectWithErrorMessage(
+      "MSIX package registration is only supported on Windows.");
+#endif
+
+  return handle;
+}
+
+// Register application restart
+// Only registers for update restarts (not crashes, hangs, or reboots)
+bool RegisterRestartOnUpdate(const std::string& command_line) {
+#if BUILDFLAG(IS_WIN)
+  if (!HasPackageIdentity()) {
+    DebugLog("Cannot restart: no package identity");
+    return false;
+  }
+
+  const wchar_t* commandLine = nullptr;
+  // Flags: RESTART_NO_CRASH | RESTART_NO_HANG | RESTART_NO_REBOOT
+  // This means: only restart on updates (RESTART_NO_PATCH is NOT set)
+  const DWORD dwFlags = 1 | 2 | 8;  // 11
+
+  if (!command_line.empty()) {
+    std::wstring commandLineW =
+        std::wstring(command_line.begin(), command_line.end());
+    commandLine = commandLineW.c_str();
+  }
+
+  HRESULT hr = RegisterApplicationRestart(commandLine, dwFlags);
+  if (FAILED(hr)) {
+    {
+      std::ostringstream oss;
+      oss << "RegisterApplicationRestart failed with error code: " << hr;
+      DebugLog(oss.str());
+    }
+    return false;
+  }
+  {
+    std::ostringstream oss;
+    oss << "RegisterApplicationRestart succeeded"
+        << (command_line.empty() ? "" : " with command line");
+    DebugLog(oss.str());
+  }
+  return true;
+#else
+  return false;
+#endif
+}
+
+// Get package information
+v8::Local<v8::Value> GetPackageInfo() {
+  v8::Isolate* isolate = electron::JavascriptEnvironment::GetIsolate();
+
+#if BUILDFLAG(IS_WIN)
+  // Check if running in a package
+  if (!HasPackageIdentity()) {
+    DebugLog("GetPackageInfo: The process has no package identity");
+    gin_helper::ErrorThrower thrower(isolate);
+    thrower.ThrowTypeError("The process has no package identity.");
+    return v8::Null(isolate);
+  }
+
+  DebugLog("GetPackageInfo: Retrieving package information");
+
+  gin_helper::Dictionary result(isolate, v8::Object::New(isolate));
+
+  // Check API contract version (Windows 10 version 1703 or later)
+  if (winrt::Windows::Foundation::Metadata::ApiInformation::
+          IsApiContractPresent(L"Windows.Foundation.UniversalApiContract", 7)) {
+    using winrt::Windows::ApplicationModel::Package;
+    using winrt::Windows::ApplicationModel::PackageSignatureKind;
+    Package package = Package::Current();
+
+    // Get package ID and family name
+    std::string packageId = winrt::to_string(package.Id().FullName());
+    std::string familyName = winrt::to_string(package.Id().FamilyName());
+
+    result.Set("id", packageId);
+    result.Set("familyName", familyName);
+    result.Set("developmentMode", package.IsDevelopmentMode());
+
+    // Get package version
+    auto packageVersion = package.Id().Version();
+    std::string version = std::to_string(packageVersion.Major) + "." +
+                          std::to_string(packageVersion.Minor) + "." +
+                          std::to_string(packageVersion.Build) + "." +
+                          std::to_string(packageVersion.Revision);
+    result.Set("version", version);
+
+    // Convert signature kind to string
+    std::string signatureKind;
+    switch (package.SignatureKind()) {
+      case PackageSignatureKind::Developer:
+        signatureKind = "developer";
+        break;
+      case PackageSignatureKind::Enterprise:
+        signatureKind = "enterprise";
+        break;
+      case PackageSignatureKind::None:
+        signatureKind = "none";
+        break;
+      case PackageSignatureKind::Store:
+        signatureKind = "store";
+        break;
+      case PackageSignatureKind::System:
+        signatureKind = "system";
+        break;
+      default:
+        signatureKind = "none";
+        break;
+    }
+    result.Set("signatureKind", signatureKind);
+
+    // Get app installer info if available
+    auto appInstallerInfo = package.GetAppInstallerInfo();
+    if (appInstallerInfo != nullptr) {
+      std::string uriStr = winrt::to_string(appInstallerInfo.Uri().ToString());
+      result.Set("appInstallerUri", uriStr);
+    }
+  } else {
+    // Windows version doesn't meet minimum API requirements
+    result.Set("familyName", "");
+    result.Set("id", "");
+    result.Set("developmentMode", false);
+    result.Set("signatureKind", "none");
+    result.Set("version", "");
+  }
+
+  return result.GetHandle();
+#else
+  // Non-Windows platforms
+  gin_helper::Dictionary result(isolate, v8::Object::New(isolate));
+  result.Set("familyName", "");
+  result.Set("id", "");
+  result.Set("developmentMode", false);
+  result.Set("signatureKind", "none");
+  result.Set("version", "");
+  return result.GetHandle();
+#endif
+}
+
+void Initialize(v8::Local<v8::Object> exports,
+                v8::Local<v8::Value> unused,
+                v8::Local<v8::Context> context,
+                void* priv) {
+  v8::Isolate* const isolate = electron::JavascriptEnvironment::GetIsolate();
+  gin_helper::Dictionary dict(isolate, exports);
+
+  dict.SetMethod("updateMsix", base::BindRepeating(&UpdateMsix));
+  dict.SetMethod("registerPackage", base::BindRepeating(&RegisterPackage));
+  dict.SetMethod("registerRestartOnUpdate",
+                 base::BindRepeating(&RegisterRestartOnUpdate));
+  dict.SetMethod("getPackageInfo",
+                 base::BindRepeating([]() { return GetPackageInfo(); }));
+}
+
+}  // namespace
+
+NODE_LINKED_BINDING_CONTEXT_AWARE(electron_browser_msix_updater, Initialize)

shell/browser/api/electron_api_msix_updater.h

@@ -0,0 +1,14 @@
+// Copyright (c) 2013 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MSIX_UPDATER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MSIX_UPDATER_H_
+
+namespace electron {
+
+extern const bool debug_msix_updater;
+
+}  // namespace electron
+
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MSIX_UPDATER_H_

shell/browser/api/electron_api_screen.cc

@@ -70,16 +70,26 @@ void DelayEmitWithMetrics(Screen* screen,
   screen->Emit(name, display, metrics);
 }
 
+// Calls the one-liner `display::Screen::Get()` to get ui's global screen.
+// NOTE: during shutdown, that screen can be destroyed before us. This means:
+// 1. Call this instead of keeping a possibly-dangling raw_ptr in api::Screen.
+// 2. Always check this function's return value for nullptr before use.
+[[nodiscard]] auto* GetDisplayScreen() {
+  return display::Screen::Get();
+}
+
+[[nodiscard]] auto GetFallbackDisplay() {
+  return display::Display::GetDefaultDisplay();
+}
 }  // namespace
 
-Screen::Screen(display::Screen* screen) : screen_{screen} {
-  screen_->AddObserver(this);
+Screen::Screen() {
+  if (auto* screen = GetDisplayScreen())
+    screen->AddObserver(this);
 }
 
 Screen::~Screen() {
-  // Use `display::Screen::Get()` here, not our cached `screen_`:
-  // during shutdown, it can get torn down before us.
-  if (auto* screen = display::Screen::Get())
+  if (auto* screen = GetDisplayScreen())
     screen->RemoveObserver(this);
 }
 
@@ -95,7 +105,33 @@ gfx::Point Screen::GetCursorScreenPoint(v8::Isolate* isolate) {
     return {};
   }
 #endif
-  return screen_->GetCursorScreenPoint();
+  auto* screen = GetDisplayScreen();
+  return screen ? screen->GetCursorScreenPoint() : gfx::Point{};
+}
+
+display::Display Screen::GetPrimaryDisplay() const {
+  const auto* screen = GetDisplayScreen();
+  return screen ? screen->GetPrimaryDisplay() : GetFallbackDisplay();
+}
+
+std::vector<display::Display> Screen::GetAllDisplays() const {
+  if (const auto* screen = GetDisplayScreen())
+    return screen->GetAllDisplays();
+
+  // Even though this is only reached during shutdown by Screen::Get() failing,
+  // display::Screen::GetAllDisplays() is guaranteed to return >= 1 display.
+  // For consistency with that API, let's return a nonempty vector here.
+  return {GetFallbackDisplay()};
+}
+
+display::Display Screen::GetDisplayNearestPoint(const gfx::Point& point) const {
+  const auto* screen = GetDisplayScreen();
+  return screen ? screen->GetDisplayNearestPoint(point) : GetFallbackDisplay();
+}
+
+display::Display Screen::GetDisplayMatching(const gfx::Rect& match_rect) const {
+  const auto* screen = GetDisplayScreen();
+  return screen ? screen->GetDisplayMatching(match_rect) : GetFallbackDisplay();
 }
 
 #if BUILDFLAG(IS_WIN)
@@ -182,14 +218,14 @@ Screen* Screen::Create(gin_helper::ErrorThrower error_thrower) {
     return {};
   }
 
-  display::Screen* screen = display::Screen::Get();
+  display::Screen* screen = GetDisplayScreen();
   if (!screen) {
     error_thrower.ThrowError("Failed to get screen information");
     return {};
   }
 
   return cppgc::MakeGarbageCollected<Screen>(
-      error_thrower.isolate()->GetCppHeap()->GetAllocationHandle(), screen);
+      error_thrower.isolate()->GetCppHeap()->GetAllocationHandle());
 }
 
 gin::ObjectTemplateBuilder Screen::GetObjectTemplateBuilder(
@@ -218,7 +254,6 @@ const gin::WrapperInfo* Screen::wrapper_info() const {
 const char* Screen::GetHumanReadableName() const {
   return "Electron / Screen";
 }
-
 }  // namespace electron::api
 
 namespace {

shell/browser/api/electron_api_screen.h

@@ -7,7 +7,6 @@
 
 #include <vector>
 
-#include "base/memory/raw_ptr.h"
 #include "gin/wrappable.h"
 #include "shell/browser/event_emitter_mixin.h"
 #include "ui/display/display_observer.h"
@@ -43,22 +42,16 @@ class Screen final : public gin::Wrappable<Screen>,
   Screen& operator=(const Screen&) = delete;
 
   // Make public for cppgc::MakeGarbageCollected.
-  explicit Screen(display::Screen* screen);
+  Screen();
   ~Screen() override;
 
-  gfx::Point GetCursorScreenPoint(v8::Isolate* isolate);
-  display::Display GetPrimaryDisplay() const {
-    return screen_->GetPrimaryDisplay();
-  }
-  const std::vector<display::Display>& GetAllDisplays() const {
-    return screen_->GetAllDisplays();
-  }
-  display::Display GetDisplayNearestPoint(const gfx::Point& point) const {
-    return screen_->GetDisplayNearestPoint(point);
-  }
-  display::Display GetDisplayMatching(const gfx::Rect& match_rect) const {
-    return screen_->GetDisplayMatching(match_rect);
-  }
+  [[nodiscard]] gfx::Point GetCursorScreenPoint(v8::Isolate* isolate);
+  [[nodiscard]] display::Display GetPrimaryDisplay() const;
+  [[nodiscard]] std::vector<display::Display> GetAllDisplays() const;
+  [[nodiscard]] display::Display GetDisplayNearestPoint(
+      const gfx::Point& point) const;
+  [[nodiscard]] display::Display GetDisplayMatching(
+      const gfx::Rect& match_rect) const;
 
   gfx::PointF ScreenToDIPPoint(const gfx::PointF& point_px);
   gfx::Point DIPToScreenPoint(const gfx::Point& point_dip);
@@ -68,9 +61,6 @@ class Screen final : public gin::Wrappable<Screen>,
   void OnDisplaysRemoved(const display::Displays& removed_displays) override;
   void OnDisplayMetricsChanged(const display::Display& display,
                                uint32_t changed_metrics) override;
-
- private:
-  raw_ptr<display::Screen> screen_;
 };
 
 }  // namespace electron::api

shell/browser/api/electron_api_view.cc

@@ -20,6 +20,8 @@
 #include "shell/common/gin_helper/handle.h"
 #include "shell/common/gin_helper/object_template_builder.h"
 #include "shell/common/node_includes.h"
+#include "ui/compositor/layer.h"
+#include "ui/views/animation/animation_builder.h"
 #include "ui/views/background.h"
 #include "ui/views/layout/flex_layout.h"
 #include "ui/views/layout/layout_manager_base.h"
@@ -144,6 +146,27 @@ struct Converter<views::SizeBounds> {
         .Build();
   }
 };
+
+template <>
+struct Converter<gfx::Tween::Type> {
+  static bool FromV8(v8::Isolate* isolate,
+                     v8::Local<v8::Value> val,
+                     gfx::Tween::Type* out) {
+    std::string easing = base::ToLowerASCII(gin::V8ToString(isolate, val));
+    if (easing == "linear") {
+      *out = gfx::Tween::LINEAR;
+    } else if (easing == "ease-in") {
+      *out = gfx::Tween::EASE_IN;
+    } else if (easing == "ease-out") {
+      *out = gfx::Tween::EASE_OUT;
+    } else if (easing == "ease-in-out") {
+      *out = gfx::Tween::EASE_IN_OUT;
+    } else {
+      return false;
+    }
+    return true;
+  }
+};
 }  // namespace gin
 
 namespace electron::api {
@@ -280,10 +303,116 @@ void View::RemoveChildView(gin_helper::Handle<View> child) {
   }
 }
 
-void View::SetBounds(const gfx::Rect& bounds) {
+ui::Layer* View::GetLayer() {
+  if (!view_)
+    return nullptr;
+
+  if (view_->layer())
+    return view_->layer();
+
+  view_->SetPaintToLayer();
+
+  ui::Layer* layer = view_->layer();
+
+  layer->SetFillsBoundsOpaquely(false);
+
+  return layer;
+}
+
+void View::SetBounds(const gfx::Rect& bounds, gin::Arguments* const args) {
+  bool animate = false;
+  int duration = 250;
+  gfx::Tween::Type easing = gfx::Tween::LINEAR;
+
+  gin_helper::Dictionary dict;
+  if (args->GetNext(&dict)) {
+    v8::Local<v8::Value> animate_value;
+
+    if (dict.Get("animate", &animate_value)) {
+      if (animate_value->IsBoolean()) {
+        animate = animate_value->BooleanValue(isolate());
+      } else {
+        animate = true;
+
+        gin_helper::Dictionary animate_dict;
+        if (gin::ConvertFromV8(isolate(), animate_value, &animate_dict)) {
+          animate_dict.Get("duration", &duration);
+          animate_dict.Get("easing", &easing);
+        }
+      }
+    }
+  }
+
+  if (duration < 0)
+    duration = 0;
+
   if (!view_)
     return;
-  view_->SetBoundsRect(bounds);
+
+  if (!animate) {
+    view_->SetBoundsRect(bounds);
+    return;
+  }
+
+  ui::Layer* layer = GetLayer();
+
+  gfx::Rect current_bounds = view_->bounds();
+
+  if (bounds.size() == current_bounds.size()) {
+    // If the size isn't changing, we can just animate the bounds directly.
+
+    views::AnimationBuilder()
+        .SetPreemptionStrategy(
+            ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET)
+        .OnEnded(base::BindOnce(
+            [](views::View* view, const gfx::Rect& final_bounds) {
+              view->SetBoundsRect(final_bounds);
+            },
+            view_, bounds))
+        .Once()
+        .SetDuration(base::Milliseconds(duration))
+        .SetBounds(view_, bounds, easing);
+
+    return;
+  }
+
+  gfx::Rect target_size = gfx::Rect(0, 0, bounds.width(), bounds.height());
+  gfx::Rect max_size =
+      gfx::Rect(current_bounds.x(), current_bounds.y(),
+                std::max(current_bounds.width(), bounds.width()),
+                std::max(current_bounds.height(), bounds.height()));
+
+  // if the view's size is smaller than the target size, we need to set the
+  // view's bounds immediatley to the new size (not position) and set the
+  // layer's clip rect to animate from there.
+  if (view_->width() < bounds.width() || view_->height() < bounds.height()) {
+    view_->SetBoundsRect(max_size);
+
+    if (layer) {
+      layer->SetClipRect(
+          gfx::Rect(0, 0, current_bounds.width(), current_bounds.height()));
+    }
+  }
+
+  views::AnimationBuilder()
+      .SetPreemptionStrategy(
+          ui::LayerAnimator::IMMEDIATELY_ANIMATE_TO_NEW_TARGET)
+      .OnEnded(base::BindOnce(
+          [](views::View* view, const gfx::Rect& final_bounds,
+             ui::Layer* layer) {
+            view->SetBoundsRect(final_bounds);
+            if (layer)
+              layer->SetClipRect(gfx::Rect());
+          },
+          view_, bounds, layer))
+      .Once()
+      .SetDuration(base::Milliseconds(duration))
+      .SetBounds(view_, bounds, easing)
+      .SetClipRect(
+          view_, target_size,
+          easing);  // We have to set the clip rect independently of the
+                    // bounds, because animating the bounds of the layer
+                    // will not animate the underlying view's bounds.
 }
 
 gfx::Rect View::GetBounds() const {

shell/browser/api/electron_api_view.h

@@ -37,7 +37,7 @@ class View : public gin_helper::EventEmitter<View>,
                       std::optional<size_t> index);
   void RemoveChildView(gin_helper::Handle<View> child);
 
-  void SetBounds(const gfx::Rect& bounds);
+  void SetBounds(const gfx::Rect& bounds, gin::Arguments* args);
   gfx::Rect GetBounds() const;
   void SetLayout(v8::Isolate* isolate, v8::Local<v8::Object> value);
   std::vector<v8::Local<v8::Value>> GetChildren();
@@ -70,6 +70,7 @@ class View : public gin_helper::EventEmitter<View>,
   void OnChildViewRemoved(views::View* observed_view,
                           views::View* child) override;
 
+  ui::Layer* GetLayer();
   void ApplyBorderRadius();
   void ReorderChildView(gin_helper::Handle<View> child, size_t index);
 

shell/browser/file_system_access/file_system_access_permission_context.cc

@@ -400,31 +400,47 @@ class FileSystemAccessPermissionContext::PermissionGrantImpl
     }
   }
 
+  // Updates the in-memory permission grant for the `new_path` in the `grants`
+  // map using the same grant from the `old_path`, and removes the grant entry
+  // for the `old_path`.
+  // If `allow_overwrite` is true, this will replace any pre-existing grant at
+  // `new_path`.
   static void UpdateGrantPath(
       std::map<base::FilePath, PermissionGrantImpl*>& grants,
       const content::PathInfo& old_path,
-      const content::PathInfo& new_path) {
+      const content::PathInfo& new_path,
+      bool allow_overwrite) {
     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-    auto entry_it =
+    auto old_path_it =
         std::ranges::find_if(grants, [&old_path](const auto& entry) {
           return entry.first == old_path.path;
         });
 
-    if (entry_it == grants.end()) {
-      // There must be an entry for an ancestor of this entry. Nothing to do
-      // here.
+    if (old_path_it == grants.end()) {
       return;
     }
 
-    DCHECK_EQ(entry_it->second->GetActivePermissionStatus(),
+    DCHECK_EQ(old_path_it->second->GetActivePermissionStatus(),
               PermissionStatus::GRANTED);
 
-    auto* const grant_impl = entry_it->second;
-    grant_impl->SetPath(new_path);
+    auto* const grant_to_move = old_path_it->second;
 
-    // Update the permission grant's key in the map of active permissions.
-    grants.erase(entry_it);
-    grants.emplace(new_path.path, grant_impl);
+    // See https://chromium-review.googlesource.com/4803165
+    if (allow_overwrite) {
+      auto new_path_it = grants.find(new_path.path);
+      if (new_path_it != grants.end() && new_path_it->second != grant_to_move) {
+        new_path_it->second->SetStatus(PermissionStatus::DENIED);
+      }
+    }
+
+    grant_to_move->SetPath(new_path);
+
+    grants.erase(old_path_it);
+    if (allow_overwrite) {
+      grants.insert_or_assign(new_path.path, grant_to_move);
+    } else {
+      grants.emplace(new_path.path, grant_to_move);
+    }
   }
 
  protected:
@@ -930,12 +946,17 @@ void FileSystemAccessPermissionContext::NotifyEntryMoved(
     return;
   }
 
+  // It's possible `new_path` already has existing persistent permission.
+  // See crbug.com/423663220.
+  bool allow_overwrite = base::FeatureList::IsEnabled(
+      features::kFileSystemAccessMoveWithOverwrite);
+
   auto it = active_permissions_map_.find(origin);
   if (it != active_permissions_map_.end()) {
     PermissionGrantImpl::UpdateGrantPath(it->second.write_grants, old_path,
-                                         new_path);
+                                         new_path, allow_overwrite);
     PermissionGrantImpl::UpdateGrantPath(it->second.read_grants, old_path,
-                                         new_path);
+                                         new_path, allow_overwrite);
   }
 }
 

shell/browser/mac/electron_application_delegate.mm

@@ -56,11 +56,6 @@ static NSDictionary* UNNotificationResponseToNSDictionary(
 }
 
 - (void)applicationWillFinishLaunching:(NSNotification*)notify {
-  // Don't add the "Enter Full Screen" menu item automatically.
-  [[NSUserDefaults standardUserDefaults]
-      setBool:NO
-       forKey:@"NSFullScreenMenuItemEverywhere"];
-
   [[[NSWorkspace sharedWorkspace] notificationCenter]
       addObserver:self
          selector:@selector(willPowerOff:)
@@ -114,7 +109,14 @@ static NSDictionary* UNNotificationResponseToNSDictionary(
 }
 
 - (NSMenu*)applicationDockMenu:(NSApplication*)sender {
-  return menu_controller_ ? menu_controller_.menu : nil;
+  if (!menu_controller_)
+    return nil;
+
+  // Manually refresh menu state since menuWillOpen: is not called
+  // by macOS for dock menus for some reason before they are displayed.
+  NSMenu* menu = menu_controller_.menu;
+  [menu_controller_ refreshMenuTree:menu];
+  return menu;
 }
 
 - (BOOL)application:(NSApplication*)sender openFile:(NSString*)filename {

shell/browser/ui/cocoa/electron_menu_controller.h

@@ -57,6 +57,10 @@ class ElectronMenuModel;
 // Whether the menu is currently open.
 - (BOOL)isMenuOpen;
 
+// Recursively refreshes the menu tree starting from |menu|, applying the
+// model state (enabled, checked, hidden etc) to each menu item.
+- (void)refreshMenuTree:(NSMenu*)menu;
+
 // NSMenuDelegate methods this class implements. Subclasses should call super
 // if extending the behavior.
 - (void)menuWillOpen:(NSMenu*)menu;

shell/browser/ui/cocoa/electron_menu_controller.mm

@@ -484,14 +484,15 @@ NSArray* ConvertSharingItemToNS(const SharingItem& item) {
   if (index < 0 || index >= count)
     return;
 
+  // When the menu is closed, we need to allow shortcuts to be triggered even
+  // if the menu item is disabled. So we only disable the menu item when the
+  // menu is open. This matches behavior of |validateUserInterfaceItem|.
+  item.enabled = model->IsEnabledAt(index) || !isMenuOpen_;
   item.hidden = !model->IsVisibleAt(index);
-  item.enabled = model->IsEnabledAt(index);
   item.state = model->IsItemCheckedAt(index) ? NSControlStateValueOn
                                              : NSControlStateValueOff;
 }
 
-// Recursively refreshes the menu tree starting from |menu|, applying the
-// model state to each menu item.
 - (void)refreshMenuTree:(NSMenu*)menu {
   for (NSMenuItem* item in menu.itemArray) {
     [self applyStateToMenuItem:item];
@@ -557,6 +558,14 @@ NSArray* ConvertSharingItemToNS(const SharingItem& item) {
 
 - (void)menuWillOpen:(NSMenu*)menu {
   isMenuOpen_ = YES;
+
+  // macOS automatically injects a duplicate "Toggle Full Screen" menu item
+  // when we set menu.delegate on submenus. Remove hidden duplicates.
+  for (NSMenuItem* item in menu.itemArray) {
+    if (item.isHidden && item.action == @selector(toggleFullScreenMode:))
+      [menu removeItem:item];
+  }
+
   [self refreshMenuTree:menu];
   if (model_)
     model_->MenuWillShow();
@@ -567,18 +576,19 @@ NSArray* ConvertSharingItemToNS(const SharingItem& item) {
   if (!isMenuOpen_)
     return;
 
-  bool has_close_cb = !popupCloseCallback.is_null();
+  isMenuOpen_ = NO;
+  [self refreshMenuTree:menu];
 
   // There are two scenarios where we should emit menu-did-close:
   // 1. It's a popup and the top level menu is closed.
   // 2. It's an application menu, and the current menu's supermenu
   //    is the top-level menu.
+  bool has_close_cb = !popupCloseCallback.is_null();
   if (menu != menu_) {
     if (has_close_cb || menu.supermenu != menu_)
       return;
   }
 
-  isMenuOpen_ = NO;
   if (model_)
     model_->MenuWillClose();
   // Post async task so that itemSelected runs before the close callback

shell/browser/ui/webui/accessibility_ui.cc

@@ -49,6 +49,10 @@
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 
+#if BUILDFLAG(IS_WIN)
+#include "ui/accessibility/platform/ax_platform_node_win.h"
+#endif
+
 namespace {
 
 constexpr std::string_view kTargetsDataFile = "targets-data.json";
@@ -151,6 +155,28 @@ bool ShouldHandleAccessibilityRequestCallback(const std::string& path) {
   return path == kTargetsDataFile;
 }
 
+// Sets boolean values in `data` for each bit in `new_ax_mode` that differs from
+// that in `last_ax_mode`. Returns `true` if `data` was modified.
+void SetProcessModeBools(ui::AXMode ax_mode, base::Value::Dict& data) {
+  data.Set(kNative, ax_mode.has_mode(ui::AXMode::kNativeAPIs));
+  data.Set(kWeb, ax_mode.has_mode(ui::AXMode::kWebContents));
+  data.Set(kText, ax_mode.has_mode(ui::AXMode::kInlineTextBoxes));
+  data.Set(kExtendedProperties,
+           ax_mode.has_mode(ui::AXMode::kExtendedProperties));
+  data.Set(kHTML, ax_mode.has_mode(ui::AXMode::kHTML));
+  data.Set(kScreenReader, ax_mode.has_mode(ui::AXMode::kScreenReader));
+}
+
+#if BUILDFLAG(IS_WIN)
+// Sets values in `data` for the platform node counts in `counts`.
+void SetNodeCounts(const ui::AXPlatformNodeWin::Counts& counts,
+                   base::Value::Dict& data) {
+  data.Set("dormantCount", base::NumberToString(counts.dormant_nodes));
+  data.Set("liveCount", base::NumberToString(counts.live_nodes));
+  data.Set("ghostCount", base::NumberToString(counts.ghost_nodes));
+}
+#endif
+
 void HandleAccessibilityRequestCallback(
     content::BrowserContext* current_context,
     ui::AXMode initial_process_mode,
@@ -294,6 +320,10 @@ void HandleAccessibilityRequestCallback(
   }
   data.Set(kBrowsersField, std::move(window_list));
 
+#if BUILDFLAG(IS_WIN)
+  SetNodeCounts(ui::AXPlatformNodeWin::GetCounts(), data);
+#endif
+
   std::move(callback).Run(base::MakeRefCounted<base::RefCountedString>(
       base::WriteJson(data).value_or("")));
 }
@@ -381,8 +411,13 @@ ElectronAccessibilityUI::ElectronAccessibilityUI(content::WebUI* web_ui)
 
 ElectronAccessibilityUI::~ElectronAccessibilityUI() = default;
 
-ElectronAccessibilityUIMessageHandler::ElectronAccessibilityUIMessageHandler() =
-    default;
+ElectronAccessibilityUIMessageHandler::ElectronAccessibilityUIMessageHandler()
+    : update_display_timer_(
+          FROM_HERE,
+          base::Seconds(1),
+          base::BindRepeating(
+              &ElectronAccessibilityUIMessageHandler::OnUpdateDisplayTimer,
+              base::Unretained(this))) {}
 
 void ElectronAccessibilityUIMessageHandler::GetRequestTypeAndFilters(
     const base::DictValue& data,
@@ -472,6 +507,10 @@ void ElectronAccessibilityUIMessageHandler::RegisterMessages() {
       base::BindRepeating(
           &AccessibilityUIMessageHandler::RequestAccessibilityEvents,
           base::Unretained(this)));
+
+  auto* web_contents = web_ui()->GetWebContents();
+  Observe(web_contents);
+  OnVisibilityChanged(web_contents->GetVisibility());
 }
 
 // static
@@ -482,3 +521,45 @@ void ElectronAccessibilityUIMessageHandler::RegisterPrefs(
   registry->RegisterStringPref(prefs::kShownAccessibilityApiType,
                                std::string(default_api_type));
 }
+
+void ElectronAccessibilityUIMessageHandler::OnVisibilityChanged(
+    content::Visibility visibility) {
+  if (visibility == content::Visibility::HIDDEN) {
+    update_display_timer_.Stop();
+  } else {
+    update_display_timer_.Reset();
+  }
+}
+
+void ElectronAccessibilityUIMessageHandler::OnUpdateDisplayTimer() {
+  // Collect the current state.
+  base::Value::Dict data;
+
+  SetProcessModeBools(
+      content::BrowserAccessibilityState::GetInstance()->GetAccessibilityMode(),
+      data);
+
+#if BUILDFLAG(IS_WIN)
+  SetNodeCounts(ui::AXPlatformNodeWin::GetCounts(), data);
+#endif  // BUILDFLAG(IS_WIN)
+
+  // Compute the delta from the last transmission.
+  for (auto scan = data.begin(); scan != data.end();) {
+    const auto& [new_key, new_value] = *scan;
+    if (const auto* old_value = last_data_.Find(new_key);
+        !old_value || *old_value != new_value) {
+      // This is a new value; remember it for the future.
+      last_data_.Set(new_key, new_value.Clone());
+      ++scan;
+    } else {
+      // This is the same as the last value; forget about it.
+      scan = data.erase(scan);
+    }
+  }
+
+  // Transmit any new values to the UI.
+  if (!data.empty()) {
+    AllowJavascript();
+    FireWebUIListener("updateDisplay", data);
+  }
+}

shell/browser/ui/webui/accessibility_ui.h

@@ -39,7 +39,21 @@ class ElectronAccessibilityUIMessageHandler
                                 std::string& allow,
                                 std::string& allow_empty,
                                 std::string& deny);
+
   void RequestNativeUITree(const base::ListValue& args);
+
+  // content::WebContentsObserver:
+  void OnVisibilityChanged(content::Visibility visibility) override;
+
+  // Updates the UI with new data. Called periodically to keep the UI up-to-date
+  // while it is visible.
+  void OnUpdateDisplayTimer();
+
+  // The last data for display sent to the UI by OnUpdateDisplayTimer.
+  base::Value::Dict last_data_;
+
+  // A timer that runs while the UI is visible to call OnUpdateDisplayTimer.
+  base::RepeatingTimer update_display_timer_;
 };
 
 #endif  // ELECTRON_SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_

shell/browser/ui/win/electron_desktop_window_tree_host_win.cc

@@ -150,6 +150,31 @@ bool ElectronDesktopWindowTreeHostWin::HandleMouseEvent(ui::MouseEvent* event) {
   return views::DesktopWindowTreeHostWin::HandleMouseEvent(event);
 }
 
+bool ElectronDesktopWindowTreeHostWin::HandleIMEMessage(UINT message,
+                                                        WPARAM w_param,
+                                                        LPARAM l_param,
+                                                        LRESULT* result) {
+  if ((message == WM_SYSCHAR) && (w_param == VK_SPACE)) {
+    if (native_window_view_->widget() &&
+        native_window_view_->widget()->non_client_view()) {
+      const auto* frame =
+          native_window_view_->widget()->non_client_view()->frame_view();
+      auto location = frame->GetSystemMenuScreenPixelLocation();
+
+      bool prevent_default = false;
+      native_window_view_->NotifyWindowSystemContextMenu(
+          location.x(), location.y(), &prevent_default);
+
+      return prevent_default ||
+             views::DesktopWindowTreeHostWin::HandleIMEMessage(message, w_param,
+                                                               l_param, result);
+    }
+  }
+
+  return views::DesktopWindowTreeHostWin::HandleIMEMessage(message, w_param,
+                                                           l_param, result);
+}
+
 void ElectronDesktopWindowTreeHostWin::HandleVisibilityChanged(bool visible) {
   if (native_window_view_->widget())
     native_window_view_->widget()->OnNativeWidgetVisibilityChanged(visible);

shell/browser/ui/win/electron_desktop_window_tree_host_win.h

@@ -44,6 +44,10 @@ class ElectronDesktopWindowTreeHostWin : public views::DesktopWindowTreeHostWin,
                            int frame_thickness) const override;
   bool HandleMouseEventForCaption(UINT message) const override;
   bool HandleMouseEvent(ui::MouseEvent* event) override;
+  bool HandleIMEMessage(UINT message,
+                        WPARAM w_param,
+                        LPARAM l_param,
+                        LRESULT* result) override;
   void HandleVisibilityChanged(bool visible) override;
   void SetAllowScreenshots(bool allow) override;