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electron-master\electron-master\shell\browser\api\atom_api_web_contents.cc
// Copyright (c) 2014 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/atom_api_web_contents.h" #include <memory> #include <set> #include <string> #include <utility> #include <vector> #include "base/message_loop/message_loop_current.h" #include "base/no_destructor.h" #include "base/optional.h" #include "base/strings/utf_string_conversions.h" #include "base/threading/thread_restrictions.h" #include "base/threading/thread_task_runner_handle.h" #include "base/values.h" #include "chrome/browser/browser_process.h" #include "chrome/browser/ssl/security_state_tab_helper.h" #include "content/browser/frame_host/frame_tree_node.h" // nogncheck #include "content/browser/frame_host/render_frame_host_manager.h" // nogncheck #include "content/browser/renderer_host/render_widget_host_impl.h" // nogncheck #include "content/browser/renderer_host/render_widget_host_view_base.h" // nogncheck #include "content/common/widget_messages.h" #include "content/public/browser/child_process_security_policy.h" #include "content/public/browser/download_request_utils.h" #include "content/public/browser/favicon_status.h" #include "content/public/browser/native_web_keyboard_event.h" #include "content/public/browser/navigation_details.h" #include "content/public/browser/navigation_entry.h" #include "content/public/browser/navigation_handle.h" #include "content/public/browser/plugin_service.h" #include "content/public/browser/render_frame_host.h" #include "content/public/browser/render_process_host.h" #include "content/public/browser/render_view_host.h" #include "content/public/browser/render_widget_host.h" #include "content/public/browser/render_widget_host_view.h" #include "content/public/browser/service_worker_context.h" #include "content/public/browser/site_instance.h" #include "content/public/browser/storage_partition.h" #include "content/public/browser/web_contents.h" #include "content/public/common/context_menu_params.h" #include "electron/buildflags/buildflags.h" #include "electron/shell/common/api/api.mojom.h" #include "mojo/public/cpp/bindings/associated_remote.h" #include "mojo/public/cpp/system/platform_handle.h" #include "ppapi/buildflags/buildflags.h" #include "shell/browser/api/atom_api_browser_window.h" #include "shell/browser/api/atom_api_debugger.h" #include "shell/browser/api/atom_api_session.h" #include "shell/browser/atom_autofill_driver_factory.h" #include "shell/browser/atom_browser_client.h" #include "shell/browser/atom_browser_context.h" #include "shell/browser/atom_browser_main_parts.h" #include "shell/browser/atom_javascript_dialog_manager.h" #include "shell/browser/atom_navigation_throttle.h" #include "shell/browser/browser.h" #include "shell/browser/child_web_contents_tracker.h" #include "shell/browser/lib/bluetooth_chooser.h" #include "shell/browser/native_window.h" #include "shell/browser/session_preferences.h" #include "shell/browser/ui/drag_util.h" #include "shell/browser/ui/inspectable_web_contents.h" #include "shell/browser/ui/inspectable_web_contents_view.h" #include "shell/browser/web_contents_permission_helper.h" #include "shell/browser/web_contents_preferences.h" #include "shell/browser/web_contents_zoom_controller.h" #include "shell/browser/web_view_guest_delegate.h" #include "shell/common/api/atom_api_native_image.h" #include "shell/common/color_util.h" #include "shell/common/gin_converters/blink_converter.h" #include "shell/common/gin_converters/callback_converter.h" #include "shell/common/gin_converters/content_converter.h" #include "shell/common/gin_converters/file_path_converter.h" #include "shell/common/gin_converters/gfx_converter.h" #include "shell/common/gin_converters/gurl_converter.h" #include "shell/common/gin_converters/image_converter.h" #include "shell/common/gin_converters/net_converter.h" #include "shell/common/gin_converters/value_converter.h" #include "shell/common/gin_helper/dictionary.h" #include "shell/common/gin_helper/object_template_builder.h" #include "shell/common/mouse_util.h" #include "shell/common/node_includes.h" #include "shell/common/options_switches.h" #include "third_party/blink/public/common/associated_interfaces/associated_interface_provider.h" #include "third_party/blink/public/common/page/page_zoom.h" #include "third_party/blink/public/mojom/frame/find_in_page.mojom.h" #include "third_party/blink/public/mojom/frame/fullscreen.mojom.h" #include "third_party/blink/public/platform/web_cursor_info.h" #include "third_party/blink/public/platform/web_input_event.h" #include "ui/display/screen.h" #include "ui/events/base_event_utils.h" #if BUILDFLAG(ENABLE_OSR) #include "shell/browser/osr/osr_render_widget_host_view.h" #include "shell/browser/osr/osr_web_contents_view.h" #endif #if !defined(OS_MACOSX) #include "ui/aura/window.h" #else #include "ui/base/cocoa/defaults_utils.h" #endif #if defined(OS_LINUX) #include "ui/views/linux_ui/linux_ui.h" #endif #if defined(OS_LINUX) || defined(OS_WIN) #include "third_party/blink/public/mojom/renderer_preferences.mojom.h" #include "ui/gfx/font_render_params.h" #endif #if BUILDFLAG(ENABLE_PRINTING) #include "chrome/browser/printing/print_view_manager_basic.h" #include "components/printing/common/print_messages.h" #endif #if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS) #include "shell/browser/extensions/atom_extension_web_contents_observer.h" #endif namespace gin { #if BUILDFLAG(ENABLE_PRINTING) template <> struct Converter<printing::PrinterBasicInfo> { static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, const printing::PrinterBasicInfo& val) { gin_helper::Dictionary dict = gin::Dictionary::CreateEmpty(isolate); dict.Set("name", val.printer_name); dict.Set("displayName", val.display_name); dict.Set("description", val.printer_description); dict.Set("status", val.printer_status); dict.Set("isDefault", val.is_default ? true : false); dict.Set("options", val.options); return dict.GetHandle(); } }; template <> struct Converter<printing::MarginType> { static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, printing::MarginType* out) { std::string type; if (ConvertFromV8(isolate, val, &type)) { if (type == "default") { *out = printing::DEFAULT_MARGINS; return true; } if (type == "none") { *out = printing::NO_MARGINS; return true; } if (type == "printableArea") { *out = printing::PRINTABLE_AREA_MARGINS; return true; } if (type == "custom") { *out = printing::CUSTOM_MARGINS; return true; } } return false; } }; template <> struct Converter<printing::DuplexMode> { static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, printing::DuplexMode* out) { std::string mode; if (ConvertFromV8(isolate, val, &mode)) { if (mode == "simplex") { *out = printing::SIMPLEX; return true; } if (mode == "longEdge") { *out = printing::LONG_EDGE; return true; } if (mode == "shortEdge") { *out = printing::SHORT_EDGE; return true; } } return false; } }; #endif template <> struct Converter<WindowOpenDisposition> { static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, WindowOpenDisposition val) { std::string disposition = "other"; switch (val) { case WindowOpenDisposition::CURRENT_TAB: disposition = "default"; break; case WindowOpenDisposition::NEW_FOREGROUND_TAB: disposition = "foreground-tab"; break; case WindowOpenDisposition::NEW_BACKGROUND_TAB: disposition = "background-tab"; break; case WindowOpenDisposition::NEW_POPUP: case WindowOpenDisposition::NEW_WINDOW: disposition = "new-window"; break; case WindowOpenDisposition::SAVE_TO_DISK: disposition = "save-to-disk"; break; default: break; } return gin::ConvertToV8(isolate, disposition); } }; template <> struct Converter<content::SavePageType> { static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, content::SavePageType* out) { std::string save_type; if (!ConvertFromV8(isolate, val, &save_type)) return false; save_type = base::ToLowerASCII(save_type); if (save_type == "htmlonly") { *out = content::SAVE_PAGE_TYPE_AS_ONLY_HTML; } else if (save_type == "htmlcomplete") { *out = content::SAVE_PAGE_TYPE_AS_COMPLETE_HTML; } else if (save_type == "mhtml") { *out = content::SAVE_PAGE_TYPE_AS_MHTML; } else { return false; } return true; } }; template <> struct Converter<electron::api::WebContents::Type> { static v8::Local<v8::Value> ToV8(v8::Isolate* isolate, electron::api::WebContents::Type val) { using Type = electron::api::WebContents::Type; std::string type; switch (val) { case Type::BACKGROUND_PAGE: type = "backgroundPage"; break; case Type::BROWSER_WINDOW: type = "window"; break; case Type::BROWSER_VIEW: type = "browserView"; break; case Type::REMOTE: type = "remote"; break; case Type::WEB_VIEW: type = "webview"; break; case Type::OFF_SCREEN: type = "offscreen"; break; default: break; } return gin::ConvertToV8(isolate, type); } static bool FromV8(v8::Isolate* isolate, v8::Local<v8::Value> val, electron::api::WebContents::Type* out) { using Type = electron::api::WebContents::Type; std::string type; if (!ConvertFromV8(isolate, val, &type)) return false; if (type == "backgroundPage") { *out = Type::BACKGROUND_PAGE; } else if (type == "browserView") { *out = Type::BROWSER_VIEW; } else if (type == "webview") { *out = Type::WEB_VIEW; #if BUILDFLAG(ENABLE_OSR) } else if (type == "offscreen") { *out = Type::OFF_SCREEN; #endif } else { return false; } return true; } }; template <> struct Converter<scoped_refptr<content::DevToolsAgentHost>> { static v8::Local<v8::Value> ToV8( v8::Isolate* isolate, const scoped_refptr<content::DevToolsAgentHost>& val) { gin_helper::Dictionary dict(isolate, v8::Object::New(isolate)); dict.Set("id", val->GetId()); dict.Set("url", val->GetURL().spec()); return dict.GetHandle(); } }; } // namespace gin namespace electron { namespace api { namespace { // Called when CapturePage is done. void OnCapturePageDone(gin_helper::Promise<gfx::Image> promise, const SkBitmap& bitmap) { // Hack to enable transparency in captured image promise.Resolve(gfx::Image::CreateFrom1xBitmap(bitmap)); } base::Optional<base::TimeDelta> GetCursorBlinkInterval() { #if defined(OS_MACOSX) base::TimeDelta interval; if (ui::TextInsertionCaretBlinkPeriod(&interval)) return interval; #elif defined(OS_LINUX) if (auto* linux_ui = views::LinuxUI::instance()) return linux_ui->GetCursorBlinkInterval(); #elif defined(OS_WIN) const auto system_msec = ::GetCaretBlinkTime(); if (system_msec != 0) { return (system_msec == INFINITE) ? base::TimeDelta() : base::TimeDelta::FromMilliseconds(system_msec); } #endif return base::nullopt; } } // namespace WebContents::WebContents(v8::Isolate* isolate, content::WebContents* web_contents) : content::WebContentsObserver(web_contents), type_(Type::REMOTE), weak_factory_(this) { web_contents->SetUserAgentOverride(GetBrowserContext()->GetUserAgent(), false); Init(isolate); AttachAsUserData(web_contents); InitZoomController(web_contents, gin::Dictionary::CreateEmpty(isolate)); registry_.AddInterface(base::BindRepeating(&WebContents::BindElectronBrowser, base::Unretained(this))); bindings_.set_connection_error_handler(base::BindRepeating( &WebContents::OnElectronBrowserConnectionError, base::Unretained(this))); } WebContents::WebContents(v8::Isolate* isolate, std::unique_ptr<content::WebContents> web_contents, Type type) : content::WebContentsObserver(web_contents.get()), type_(type), weak_factory_(this) { DCHECK(type != Type::REMOTE) << "Can‘t take ownership of a remote WebContents"; auto session = Session::CreateFrom(isolate, GetBrowserContext()); session_.Reset(isolate, session.ToV8()); InitWithSessionAndOptions(isolate, std::move(web_contents), session, gin::Dictionary::CreateEmpty(isolate)); } WebContents::WebContents(v8::Isolate* isolate, const gin_helper::Dictionary& options) : weak_factory_(this) { // Read options. options.Get("backgroundThrottling", &background_throttling_); // Get type options.Get("type", &type_); #if BUILDFLAG(ENABLE_OSR) bool b = false; if (options.Get(options::kOffscreen, &b) && b) type_ = Type::OFF_SCREEN; #endif // Init embedder earlier options.Get("embedder", &embedder_); // Whether to enable DevTools. options.Get("devTools", &enable_devtools_); // BrowserViews are not attached to a window initially so they should start // off as hidden. This is also important for compositor recycling. See: // https://github.com/electron/electron/pull/21372 bool initially_shown = type_ != Type::BROWSER_VIEW; options.Get(options::kShow, &initially_shown); // Obtain the session. std::string partition; gin::Handle<api::Session> session; if (options.Get("session", &session) && !session.IsEmpty()) { } else if (options.Get("partition", &partition)) { session = Session::FromPartition(isolate, partition); } else { // Use the default session if not specified. session = Session::FromPartition(isolate, ""); } session_.Reset(isolate, session.ToV8()); std::unique_ptr<content::WebContents> web_contents; if (IsGuest()) { scoped_refptr<content::SiteInstance> site_instance = content::SiteInstance::CreateForURL(session->browser_context(), GURL("chrome-guest://fake-host")); content::WebContents::CreateParams params(session->browser_context(), site_instance); guest_delegate_ = std::make_unique<WebViewGuestDelegate>(embedder_->web_contents(), this); params.guest_delegate = guest_delegate_.get(); #if BUILDFLAG(ENABLE_OSR) if (embedder_ && embedder_->IsOffScreen()) { auto* view = new OffScreenWebContentsView( false, base::BindRepeating(&WebContents::OnPaint, base::Unretained(this))); params.view = view; params.delegate_view = view; web_contents = content::WebContents::Create(params); view->SetWebContents(web_contents.get()); } else { #endif web_contents = content::WebContents::Create(params); #if BUILDFLAG(ENABLE_OSR) } } else if (IsOffScreen()) { bool transparent = false; options.Get("transparent", &transparent); content::WebContents::CreateParams params(session->browser_context()); auto* view = new OffScreenWebContentsView( transparent, base::BindRepeating(&WebContents::OnPaint, base::Unretained(this))); params.view = view; params.delegate_view = view; web_contents = content::WebContents::Create(params); view->SetWebContents(web_contents.get()); #endif } else { content::WebContents::CreateParams params(session->browser_context()); params.initially_hidden = !initially_shown; web_contents = content::WebContents::Create(params); } InitWithSessionAndOptions(isolate, std::move(web_contents), session, options); } void WebContents::InitZoomController(content::WebContents* web_contents, const gin_helper::Dictionary& options) { WebContentsZoomController::CreateForWebContents(web_contents); zoom_controller_ = WebContentsZoomController::FromWebContents(web_contents); double zoom_factor; if (options.Get(options::kZoomFactor, &zoom_factor)) zoom_controller_->SetDefaultZoomFactor(zoom_factor); } void WebContents::InitWithSessionAndOptions( v8::Isolate* isolate, std::unique_ptr<content::WebContents> owned_web_contents, gin::Handle<api::Session> session, const gin_helper::Dictionary& options) { Observe(owned_web_contents.get()); // TODO(zcbenz): Make InitWithWebContents take unique_ptr. // At the time of writing we are going through a refactoring and I don‘t want // to make other people‘s work harder. InitWithWebContents(owned_web_contents.release(), session->browser_context(), IsGuest()); managed_web_contents()->GetView()->SetDelegate(this); auto* prefs = web_contents()->GetMutableRendererPrefs(); prefs->accept_languages = g_browser_process->GetApplicationLocale(); #if defined(OS_LINUX) || defined(OS_WIN) // Update font settings. static const base::NoDestructor<gfx::FontRenderParams> params( gfx::GetFontRenderParams(gfx::FontRenderParamsQuery(), nullptr)); prefs->should_antialias_text = params->antialiasing; prefs->use_subpixel_positioning = params->subpixel_positioning; prefs->hinting = params->hinting; prefs->use_autohinter = params->autohinter; prefs->use_bitmaps = params->use_bitmaps; prefs->subpixel_rendering = params->subpixel_rendering; #endif // Honor the system‘s cursor blink rate settings if (auto interval = GetCursorBlinkInterval()) prefs->caret_blink_interval = *interval; // Save the preferences in C++. new WebContentsPreferences(web_contents(), options); WebContentsPermissionHelper::CreateForWebContents(web_contents()); SecurityStateTabHelper::CreateForWebContents(web_contents()); InitZoomController(web_contents(), options); #if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS) extensions::AtomExtensionWebContentsObserver::CreateForWebContents( web_contents()); #endif registry_.AddInterface(base::BindRepeating(&WebContents::BindElectronBrowser, base::Unretained(this))); bindings_.set_connection_error_handler(base::BindRepeating( &WebContents::OnElectronBrowserConnectionError, base::Unretained(this))); AutofillDriverFactory::CreateForWebContents(web_contents()); web_contents()->SetUserAgentOverride(GetBrowserContext()->GetUserAgent(), false); if (IsGuest()) { NativeWindow* owner_window = nullptr; if (embedder_) { // New WebContents‘s owner_window is the embedder‘s owner_window. auto* relay = NativeWindowRelay::FromWebContents(embedder_->web_contents()); if (relay) owner_window = relay->GetNativeWindow(); } if (owner_window) SetOwnerWindow(owner_window); } Init(isolate); AttachAsUserData(web_contents()); } WebContents::~WebContents() { // The destroy() is called. if (managed_web_contents()) { managed_web_contents()->GetView()->SetDelegate(nullptr); RenderViewDeleted(web_contents()->GetRenderViewHost()); if (type_ == Type::BROWSER_WINDOW && owner_window()) { // For BrowserWindow we should close the window and clean up everything // before WebContents is destroyed. for (ExtendedWebContentsObserver& observer : observers_) observer.OnCloseContents(); // BrowserWindow destroys WebContents asynchronously, manually emit the // destroyed event here. WebContentsDestroyed(); } else if (Browser::Get()->is_shutting_down()) { // Destroy WebContents directly when app is shutting down. DestroyWebContents(false /* async */); } else { // Destroy WebContents asynchronously unless app is shutting down, // because destroy() might be called inside WebContents‘s event handler. DestroyWebContents(!IsGuest() /* async */); // The WebContentsDestroyed will not be called automatically because we // destroy the webContents in the next tick. So we have to manually // call it here to make sure "destroyed" event is emitted. WebContentsDestroyed(); } } } void WebContents::DestroyWebContents(bool async) { // This event is only for internal use, which is emitted when WebContents is // being destroyed. Emit("will-destroy"); ResetManagedWebContents(async); } bool WebContents::DidAddMessageToConsole( content::WebContents* source, blink::mojom::ConsoleMessageLevel level, const base::string16& message, int32_t line_no, const base::string16& source_id) { return Emit("console-message", static_cast<int32_t>(level), message, line_no, source_id); } void WebContents::OnCreateWindow( const GURL& target_url, const content::Referrer& referrer, const std::string& frame_name, WindowOpenDisposition disposition, const std::vector<std::string>& features, const scoped_refptr<network::ResourceRequestBody>& body) { if (type_ == Type::BROWSER_WINDOW || type_ == Type::OFF_SCREEN) Emit("-new-window", target_url, frame_name, disposition, features, body, referrer); else Emit("new-window", target_url, frame_name, disposition, features); } void WebContents::WebContentsCreated(content::WebContents* source_contents, int opener_render_process_id, int opener_render_frame_id, const std::string& frame_name, const GURL& target_url, content::WebContents* new_contents) { ChildWebContentsTracker::CreateForWebContents(new_contents); auto* tracker = ChildWebContentsTracker::FromWebContents(new_contents); tracker->url = target_url; tracker->frame_name = frame_name; } void WebContents::AddNewContents( content::WebContents* source, std::unique_ptr<content::WebContents> new_contents, WindowOpenDisposition disposition, const gfx::Rect& initial_rect, bool user_gesture, bool* was_blocked) { auto* tracker = ChildWebContentsTracker::FromWebContents(new_contents.get()); DCHECK(tracker); v8::Locker locker(isolate()); v8::HandleScope handle_scope(isolate()); auto api_web_contents = CreateAndTake(isolate(), std::move(new_contents), Type::BROWSER_WINDOW); if (Emit("-add-new-contents", api_web_contents, disposition, user_gesture, initial_rect.x(), initial_rect.y(), initial_rect.width(), initial_rect.height(), tracker->url, tracker->frame_name)) { // TODO(zcbenz): Can we make this sync? api_web_contents->DestroyWebContents(true /* async */); } } content::WebContents* WebContents::OpenURLFromTab( content::WebContents* source, const content::OpenURLParams& params) { if (params.disposition != WindowOpenDisposition::CURRENT_TAB) { if (type_ == Type::BROWSER_WINDOW || type_ == Type::OFF_SCREEN) Emit("-new-window", params.url, "", params.disposition); else Emit("new-window", params.url, "", params.disposition); return nullptr; } // Give user a chance to cancel navigation. if (Emit("will-navigate", params.url)) return nullptr; // Don‘t load the URL if the web contents was marked as destroyed from a // will-navigate event listener if (IsDestroyed()) return nullptr; return CommonWebContentsDelegate::OpenURLFromTab(source, params); } void WebContents::BeforeUnloadFired(content::WebContents* tab, bool proceed, bool* proceed_to_fire_unload) { if (type_ == Type::BROWSER_WINDOW || type_ == Type::OFF_SCREEN) *proceed_to_fire_unload = proceed; else *proceed_to_fire_unload = true; } void WebContents::SetContentsBounds(content::WebContents* source, const gfx::Rect& pos) { Emit("move", pos); } void WebContents::CloseContents(content::WebContents* source) { Emit("close"); auto* autofill_driver_factory = AutofillDriverFactory::FromWebContents(web_contents()); if (autofill_driver_factory) { autofill_driver_factory->CloseAllPopups(); } if (managed_web_contents()) managed_web_contents()->GetView()->SetDelegate(nullptr); for (ExtendedWebContentsObserver& observer : observers_) observer.OnCloseContents(); } void WebContents::ActivateContents(content::WebContents* source) { Emit("activate"); } void WebContents::UpdateTargetURL(content::WebContents* source, const GURL& url) { Emit("update-target-url", url); } bool WebContents::HandleKeyboardEvent( content::WebContents* source, const content::NativeWebKeyboardEvent& event) { if (type_ == Type::WEB_VIEW && embedder_) { // Send the unhandled keyboard events back to the embedder. return embedder_->HandleKeyboardEvent(source, event); } else { // Go to the default keyboard handling. return CommonWebContentsDelegate::HandleKeyboardEvent(source, event); } } content::KeyboardEventProcessingResult WebContents::PreHandleKeyboardEvent( content::WebContents* source, const content::NativeWebKeyboardEvent& event) { if (event.GetType() == blink::WebInputEvent::Type::kRawKeyDown || event.GetType() == blink::WebInputEvent::Type::kKeyUp) { bool prevent_default = Emit("before-input-event", event); if (prevent_default) { return content::KeyboardEventProcessingResult::HANDLED; } } return content::KeyboardEventProcessingResult::NOT_HANDLED; } void WebContents::ContentsZoomChange(bool zoom_in) { Emit("zoom-changed", zoom_in ? "in" : "out"); } void WebContents::EnterFullscreenModeForTab( content::WebContents* source, const GURL& origin, const blink::mojom::FullscreenOptions& options) { auto* permission_helper = WebContentsPermissionHelper::FromWebContents(source); auto callback = base::BindRepeating(&WebContents::OnEnterFullscreenModeForTab, base::Unretained(this), source, origin, options); permission_helper->RequestFullscreenPermission(callback); } void WebContents::OnEnterFullscreenModeForTab( content::WebContents* source, const GURL& origin, const blink::mojom::FullscreenOptions& options, bool allowed) { if (!allowed) return; CommonWebContentsDelegate::EnterFullscreenModeForTab(source, origin, options); Emit("enter-html-full-screen"); } void WebContents::ExitFullscreenModeForTab(content::WebContents* source) { CommonWebContentsDelegate::ExitFullscreenModeForTab(source); Emit("leave-html-full-screen"); } void WebContents::RendererUnresponsive( content::WebContents* source, content::RenderWidgetHost* render_widget_host, base::RepeatingClosure hang_monitor_restarter) { Emit("unresponsive"); } void WebContents::RendererResponsive( content::WebContents* source, content::RenderWidgetHost* render_widget_host) { Emit("responsive"); for (ExtendedWebContentsObserver& observer : observers_) observer.OnRendererResponsive(); } bool WebContents::HandleContextMenu(content::RenderFrameHost* render_frame_host, const content::ContextMenuParams& params) { if (params.custom_context.is_pepper_menu) { Emit("pepper-context-menu", std::make_pair(params, web_contents()), base::BindOnce(&content::WebContents::NotifyContextMenuClosed, base::Unretained(web_contents()), params.custom_context)); } else { Emit("context-menu", std::make_pair(params, web_contents())); } return true; } bool WebContents::OnGoToEntryOffset(int offset) { GoToOffset(offset); return false; } void WebContents::FindReply(content::WebContents* web_contents, int request_id, int number_of_matches, const gfx::Rect& selection_rect, int active_match_ordinal, bool final_update) { if (!final_update) return; v8::Locker locker(isolate()); v8::HandleScope handle_scope(isolate()); gin_helper::Dictionary result = gin::Dictionary::CreateEmpty(isolate()); result.Set("requestId", request_id); result.Set("matches", number_of_matches); result.Set("selectionArea", selection_rect); result.Set("activeMatchOrdinal", active_match_ordinal); result.Set("finalUpdate", final_update); // Deprecate after 2.0 Emit("found-in-page", result.GetHandle()); } bool WebContents::CheckMediaAccessPermission( content::RenderFrameHost* render_frame_host, const GURL& security_origin, blink::mojom::MediaStreamType type) { auto* web_contents = content::WebContents::FromRenderFrameHost(render_frame_host); auto* permission_helper = WebContentsPermissionHelper::FromWebContents(web_contents); return permission_helper->CheckMediaAccessPermission(security_origin, type); } void WebContents::RequestMediaAccessPermission( content::WebContents* web_contents, const content::MediaStreamRequest& request, content::MediaResponseCallback callback) { auto* permission_helper = WebContentsPermissionHelper::FromWebContents(web_contents); permission_helper->RequestMediaAccessPermission(request, std::move(callback)); } void WebContents::RequestToLockMouse(content::WebContents* web_contents, bool user_gesture, bool last_unlocked_by_target) { auto* permission_helper = WebContentsPermissionHelper::FromWebContents(web_contents); permission_helper->RequestPointerLockPermission(user_gesture); } std::unique_ptr<content::BluetoothChooser> WebContents::RunBluetoothChooser( content::RenderFrameHost* frame, const content::BluetoothChooser::EventHandler& event_handler) { return std::make_unique<BluetoothChooser>(this, event_handler); } content::JavaScriptDialogManager* WebContents::GetJavaScriptDialogManager( content::WebContents* source) { if (!dialog_manager_) dialog_manager_ = std::make_unique<AtomJavaScriptDialogManager>(this); return dialog_manager_.get(); } void WebContents::OnAudioStateChanged(bool audible) { Emit("-audio-state-changed", audible); } void WebContents::BeforeUnloadFired(bool proceed, const base::TimeTicks& proceed_time) { // Do nothing, we override this method just to avoid compilation error since // there are two virtual functions named BeforeUnloadFired. } void WebContents::RenderViewCreated(content::RenderViewHost* render_view_host) { if (!background_throttling_) render_view_host->SetSchedulerThrottling(false); } void WebContents::RenderFrameCreated( content::RenderFrameHost* render_frame_host) { auto* rwhv = render_frame_host->GetView(); if (!rwhv) return; auto* rwh_impl = static_cast<content::RenderWidgetHostImpl*>(rwhv->GetRenderWidgetHost()); if (rwh_impl) rwh_impl->disable_hidden_ = !background_throttling_; } void WebContents::RenderViewHostChanged(content::RenderViewHost* old_host, content::RenderViewHost* new_host) { currently_committed_process_id_ = new_host->GetProcess()->GetID(); } void WebContents::RenderViewDeleted(content::RenderViewHost* render_view_host) { // This event is necessary for tracking any states with respect to // intermediate render view hosts aka speculative render view hosts. Currently // used by object-registry.js to ref count remote objects. Emit("render-view-deleted", render_view_host->GetProcess()->GetID()); if (-1 == currently_committed_process_id_ || render_view_host->GetProcess()->GetID() == currently_committed_process_id_) { currently_committed_process_id_ = -1; // When the RVH that has been deleted is the current RVH it means that the // the web contents are being closed. This is communicated by this event. // Currently tracked by guest-window-manager.js to destroy the // BrowserWindow. Emit("current-render-view-deleted", render_view_host->GetProcess()->GetID()); } } void WebContents::RenderProcessGone(base::TerminationStatus status) { Emit("crashed", status == base::TERMINATION_STATUS_PROCESS_WAS_KILLED); } void WebContents::PluginCrashed(const base::FilePath& plugin_path, base::ProcessId plugin_pid) { #if BUILDFLAG(ENABLE_PLUGINS) content::WebPluginInfo info; auto* plugin_service = content::PluginService::GetInstance(); plugin_service->GetPluginInfoByPath(plugin_path, &info); Emit("plugin-crashed", info.name, info.version); #endif // BUILDFLAG(ENABLE_PLUIGNS) } void WebContents::MediaStartedPlaying(const MediaPlayerInfo& video_type, const content::MediaPlayerId& id) { Emit("media-started-playing"); } void WebContents::MediaStoppedPlaying( const MediaPlayerInfo& video_type, const content::MediaPlayerId& id, content::WebContentsObserver::MediaStoppedReason reason) { Emit("media-paused"); } void WebContents::DidChangeThemeColor(base::Optional<SkColor> theme_color) { if (theme_color) { Emit("did-change-theme-color", electron::ToRGBHex(theme_color.value())); } else { Emit("did-change-theme-color", nullptr); } } void WebContents::OnInterfaceRequestFromFrame( content::RenderFrameHost* render_frame_host, const std::string& interface_name, mojo::ScopedMessagePipeHandle* interface_pipe) { registry_.TryBindInterface(interface_name, interface_pipe, render_frame_host); } void WebContents::DidAcquireFullscreen(content::RenderFrameHost* rfh) { set_fullscreen_frame(rfh); } void WebContents::DOMContentLoaded( content::RenderFrameHost* render_frame_host) { if (!render_frame_host->GetParent()) Emit("dom-ready"); } void WebContents::DidFinishLoad(content::RenderFrameHost* render_frame_host, const GURL& validated_url) { bool is_main_frame = !render_frame_host->GetParent(); int frame_process_id = render_frame_host->GetProcess()->GetID(); int frame_routing_id = render_frame_host->GetRoutingID(); auto weak_this = GetWeakPtr(); Emit("did-frame-finish-load", is_main_frame, frame_process_id, frame_routing_id); // ??WARNING!?? // Emit() triggers JS which can call destroy() on |this|. It‘s not safe to // assume that |this| points to valid memory at this point. if (is_main_frame && weak_this) Emit("did-finish-load"); } void WebContents::DidFailLoad(content::RenderFrameHost* render_frame_host, const GURL& url, int error_code, const base::string16& error_description) { bool is_main_frame = !render_frame_host->GetParent(); int frame_process_id = render_frame_host->GetProcess()->GetID(); int frame_routing_id = render_frame_host->GetRoutingID(); Emit("did-fail-load", error_code, error_description, url, is_main_frame, frame_process_id, frame_routing_id); } void WebContents::DidStartLoading() { Emit("did-start-loading"); } void WebContents::DidStopLoading() { Emit("did-stop-loading"); } bool WebContents::EmitNavigationEvent( const std::string& event, content::NavigationHandle* navigation_handle) { bool is_main_frame = navigation_handle->IsInMainFrame(); int frame_tree_node_id = navigation_handle->GetFrameTreeNodeId(); content::FrameTreeNode* frame_tree_node = content::FrameTreeNode::GloballyFindByID(frame_tree_node_id); content::RenderFrameHostManager* render_manager = frame_tree_node->render_manager(); content::RenderFrameHost* frame_host = nullptr; if (render_manager) { frame_host = render_manager->speculative_frame_host(); if (!frame_host) frame_host = render_manager->current_frame_host(); } int frame_process_id = -1, frame_routing_id = -1; if (frame_host) { frame_process_id = frame_host->GetProcess()->GetID(); frame_routing_id = frame_host->GetRoutingID(); } bool is_same_document = navigation_handle->IsSameDocument(); auto url = navigation_handle->GetURL(); return Emit(event, url, is_same_document, is_main_frame, frame_process_id, frame_routing_id); } void WebContents::BindElectronBrowser( mojom::ElectronBrowserRequest request, content::RenderFrameHost* render_frame_host) { auto id = bindings_.AddBinding(this, std::move(request), render_frame_host); frame_to_bindings_map_[render_frame_host].push_back(id); } void WebContents::OnElectronBrowserConnectionError() { auto binding_id = bindings_.dispatch_binding(); auto* frame_host = bindings_.dispatch_context(); base::Erase(frame_to_bindings_map_[frame_host], binding_id); } void WebContents::Message(bool internal, const std::string& channel, blink::CloneableMessage arguments) { TRACE_EVENT1("electron", "WebContents::Message", "channel", channel); // webContents.emit(‘-ipc-message‘, new Event(), internal, channel, // arguments); EmitWithSender("-ipc-message", bindings_.dispatch_context(), InvokeCallback(), internal, channel, std::move(arguments)); } void WebContents::Invoke(bool internal, const std::string& channel, blink::CloneableMessage arguments, InvokeCallback callback) { TRACE_EVENT1("electron", "WebContents::Invoke", "channel", channel); // webContents.emit(‘-ipc-invoke‘, new Event(), internal, channel, arguments); EmitWithSender("-ipc-invoke", bindings_.dispatch_context(), std::move(callback), internal, channel, std::move(arguments)); } void WebContents::MessageSync(bool internal, const std::string& channel, blink::CloneableMessage arguments, MessageSyncCallback callback) { TRACE_EVENT1("electron", "WebContents::MessageSync", "channel", channel); // webContents.emit(‘-ipc-message-sync‘, new Event(sender, message), internal, // channel, arguments); EmitWithSender("-ipc-message-sync", bindings_.dispatch_context(), std::move(callback), internal, channel, std::move(arguments)); } void WebContents::MessageTo(bool internal, bool send_to_all, int32_t web_contents_id, const std::string& channel, blink::CloneableMessage arguments) { TRACE_EVENT1("electron", "WebContents::MessageTo", "channel", channel); auto* web_contents = gin_helper::TrackableObject<WebContents>::FromWeakMapID( isolate(), web_contents_id); if (web_contents) { web_contents->SendIPCMessageWithSender(internal, send_to_all, channel, std::move(arguments), ID()); } } void WebContents::MessageHost(const std::string& channel, blink::CloneableMessage arguments) { TRACE_EVENT1("electron", "WebContents::MessageHost", "channel", channel); // webContents.emit(‘ipc-message-host‘, new Event(), channel, args); EmitWithSender("ipc-message-host", bindings_.dispatch_context(), InvokeCallback(), channel, std::move(arguments)); } #if BUILDFLAG(ENABLE_REMOTE_MODULE) void WebContents::DereferenceRemoteJSObject(const std::string& context_id, int object_id, int ref_count) { base::ListValue args; args.Append(context_id); args.Append(object_id); args.Append(ref_count); EmitWithSender("-ipc-message", bindings_.dispatch_context(), InvokeCallback(), /* internal */ true, "ELECTRON_BROWSER_DEREFERENCE", std::move(args)); } #endif void WebContents::UpdateDraggableRegions( std::vector<mojom::DraggableRegionPtr> regions) { for (ExtendedWebContentsObserver& observer : observers_) observer.OnDraggableRegionsUpdated(regions); } void WebContents::RenderFrameDeleted( content::RenderFrameHost* render_frame_host) { // A RenderFrameHost can be destroyed before the related Mojo binding is // closed, which can result in Mojo calls being sent for RenderFrameHosts // that no longer exist. To prevent this from happening, when a // RenderFrameHost goes away, we close all the bindings related to that // frame. auto it = frame_to_bindings_map_.find(render_frame_host); if (it == frame_to_bindings_map_.end()) return; for (auto id : it->second) bindings_.RemoveBinding(id); frame_to_bindings_map_.erase(it); } void WebContents::DidStartNavigation( content::NavigationHandle* navigation_handle) { EmitNavigationEvent("did-start-navigation", navigation_handle); } void WebContents::DidRedirectNavigation( content::NavigationHandle* navigation_handle) { EmitNavigationEvent("did-redirect-navigation", navigation_handle); } void WebContents::DidFinishNavigation( content::NavigationHandle* navigation_handle) { if (!navigation_handle->HasCommitted()) return; bool is_main_frame = navigation_handle->IsInMainFrame(); content::RenderFrameHost* frame_host = navigation_handle->GetRenderFrameHost(); int frame_process_id = -1, frame_routing_id = -1; if (frame_host) { frame_process_id = frame_host->GetProcess()->GetID(); frame_routing_id = frame_host->GetRoutingID(); } if (!navigation_handle->IsErrorPage()) { // FIXME: All the Emit() calls below could potentially result in |this| // being destroyed (by JS listening for the event and calling // webContents.destroy()). auto url = navigation_handle->GetURL(); bool is_same_document = navigation_handle->IsSameDocument(); if (is_same_document) { Emit("did-navigate-in-page", url, is_main_frame, frame_process_id, frame_routing_id); } else { const net::HttpResponseHeaders* http_response = navigation_handle->GetResponseHeaders(); std::string http_status_text; int http_response_code = -1; if (http_response) { http_status_text = http_response->GetStatusText(); http_response_code = http_response->response_code(); } Emit("did-frame-navigate", url, http_response_code, http_status_text, is_main_frame, frame_process_id, frame_routing_id); if (is_main_frame) { Emit("did-navigate", url, http_response_code, http_status_text); } } if (IsGuest()) Emit("load-commit", url, is_main_frame); } else { auto url = navigation_handle->GetURL(); int code = navigation_handle->GetNetErrorCode(); auto description = net::ErrorToShortString(code); Emit("did-fail-provisional-load", code, description, url, is_main_frame, frame_process_id, frame_routing_id); // Do not emit "did-fail-load" for canceled requests. if (code != net::ERR_ABORTED) Emit("did-fail-load", code, description, url, is_main_frame, frame_process_id, frame_routing_id); } } void WebContents::TitleWasSet(content::NavigationEntry* entry) { base::string16 final_title; bool explicit_set = true; if (entry) { auto title = entry->GetTitle(); auto url = entry->GetURL(); if (url.SchemeIsFile() && title.empty()) { final_title = base::UTF8ToUTF16(url.ExtractFileName()); explicit_set = false; } else { final_title = title; } } Emit("page-title-updated", final_title, explicit_set); } void WebContents::DidUpdateFaviconURL( const std::vector<content::FaviconURL>& urls) { std::set<GURL> unique_urls; for (const auto& iter : urls) { if (iter.icon_type != content::FaviconURL::IconType::kFavicon) continue; const GURL& url = iter.icon_url; if (url.is_valid()) unique_urls.insert(url); } Emit("page-favicon-updated", unique_urls); } void WebContents::DevToolsReloadPage() { Emit("devtools-reload-page"); } void WebContents::DevToolsFocused() { Emit("devtools-focused"); } void WebContents::DevToolsOpened() { v8::Locker locker(isolate()); v8::HandleScope handle_scope(isolate()); auto handle = FromOrCreate(isolate(), managed_web_contents()->GetDevToolsWebContents()); devtools_web_contents_.Reset(isolate(), handle.ToV8()); // Set inspected tabID. base::Value tab_id(ID()); managed_web_contents()->CallClientFunction("DevToolsAPI.setInspectedTabId", &tab_id, nullptr, nullptr); // Inherit owner window in devtools when it doesn‘t have one. auto* devtools = managed_web_contents()->GetDevToolsWebContents(); bool has_window = devtools->GetUserData(NativeWindowRelay::UserDataKey()); if (owner_window() && !has_window) handle->SetOwnerWindow(devtools, owner_window()); Emit("devtools-opened"); } void WebContents::DevToolsClosed() { v8::Locker locker(isolate()); v8::HandleScope handle_scope(isolate()); devtools_web_contents_.Reset(); Emit("devtools-closed"); } bool WebContents::OnMessageReceived(const IPC::Message& message) { bool handled = true; IPC_BEGIN_MESSAGE_MAP(WebContents, message) IPC_MESSAGE_HANDLER_CODE(WidgetHostMsg_SetCursor, OnCursorChange, handled = false) IPC_MESSAGE_UNHANDLED(handled = false) IPC_END_MESSAGE_MAP() return handled; } // There are three ways of destroying a webContents: // 1. call webContents.destroy(); // 2. garbage collection; // 3. user closes the window of webContents; // 4. the embedder detaches the frame. // For webview only #4 will happen, for BrowserWindow both #1 and #3 may // happen. The #2 should never happen for webContents, because webview is // managed by GuestViewManager, and BrowserWindow‘s webContents is managed // by api::BrowserWindow. // For #1, the destructor will do the cleanup work and we only need to make // sure "destroyed" event is emitted. For #3, the content::WebContents will // be destroyed on close, and WebContentsDestroyed would be called for it, so // we need to make sure the api::WebContents is also deleted. // For #4, the WebContents will be destroyed by embedder. void WebContents::WebContentsDestroyed() { // Cleanup relationships with other parts. RemoveFromWeakMap(); // We can not call Destroy here because we need to call Emit first, but we // also do not want any method to be used, so just mark as destroyed here. MarkDestroyed(); Emit("destroyed"); // For guest view based on OOPIF, the WebContents is released by the embedder // frame, and we need to clear the reference to the memory. if (IsGuest() && managed_web_contents()) { managed_web_contents()->ReleaseWebContents(); ResetManagedWebContents(false); } // Destroy the native class in next tick. base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, GetDestroyClosure()); } void WebContents::NavigationEntryCommitted( const content::LoadCommittedDetails& details) { Emit("navigation-entry-commited", details.entry->GetURL(), details.is_same_document, details.did_replace_entry); } void WebContents::SetBackgroundThrottling(bool allowed) { background_throttling_ = allowed; auto* rfh = web_contents()->GetMainFrame(); if (!rfh) return; auto* rwhv = rfh->GetView(); if (!rwhv) return; auto* rwh_impl = static_cast<content::RenderWidgetHostImpl*>(rwhv->GetRenderWidgetHost()); if (!rwh_impl) return; rwh_impl->disable_hidden_ = !background_throttling_; web_contents()->GetRenderViewHost()->SetSchedulerThrottling(allowed); if (rwh_impl->is_hidden()) { rwh_impl->WasShown(base::nullopt); } } int WebContents::GetProcessID() const { return web_contents()->GetMainFrame()->GetProcess()->GetID(); } base::ProcessId WebContents::GetOSProcessID() const { base::ProcessHandle process_handle = web_contents()->GetMainFrame()->GetProcess()->GetProcess().Handle(); return base::GetProcId(process_handle); } base::ProcessId WebContents::GetOSProcessIdForFrame( const std::string& name, const std::string& document_url) const { for (auto* frame : web_contents()->GetAllFrames()) { if (frame->GetFrameName() == name && frame->GetLastCommittedURL().spec() == document_url) { return base::GetProcId(frame->GetProcess()->GetProcess().Handle()); } } return base::kNullProcessId; } WebContents::Type WebContents::GetType() const { return type_; } bool WebContents::Equal(const WebContents* web_contents) const { return ID() == web_contents->ID(); } void WebContents::LoadURL(const GURL& url, const gin_helper::Dictionary& options) { if (!url.is_valid() || url.spec().size() > url::kMaxURLChars) { Emit("did-fail-load", static_cast<int>(net::ERR_INVALID_URL), net::ErrorToShortString(net::ERR_INVALID_URL), url.possibly_invalid_spec(), true); return; } content::NavigationController::LoadURLParams params(url); if (!options.Get("httpReferrer", ¶ms.referrer)) { GURL http_referrer; if (options.Get("httpReferrer", &http_referrer)) params.referrer = content::Referrer(http_referrer.GetAsReferrer(), network::mojom::ReferrerPolicy::kDefault); } std::string user_agent; if (options.Get("userAgent", &user_agent)) web_contents()->SetUserAgentOverride(user_agent, false); std::string extra_headers; if (options.Get("extraHeaders", &extra_headers)) params.extra_headers = extra_headers; scoped_refptr<network::ResourceRequestBody> body; if (options.Get("postData", &body)) { params.post_data = body; params.load_type = content::NavigationController::LOAD_TYPE_HTTP_POST; } GURL base_url_for_data_url; if (options.Get("baseURLForDataURL", &base_url_for_data_url)) { params.base_url_for_data_url = base_url_for_data_url; params.load_type = content::NavigationController::LOAD_TYPE_DATA; } bool reload_ignoring_cache = false; if (options.Get("reloadIgnoringCache", &reload_ignoring_cache) && reload_ignoring_cache) { params.reload_type = content::ReloadType::BYPASSING_CACHE; } // Calling LoadURLWithParams() can trigger JS which destroys |this|. auto weak_this = GetWeakPtr(); params.transition_type = ui::PAGE_TRANSITION_TYPED; params.should_clear_history_list = true; params.override_user_agent = content::NavigationController::UA_OVERRIDE_TRUE; // Discord non-committed entries to ensure that we don‘t re-use a pending // entry web_contents()->GetController().DiscardNonCommittedEntries(); web_contents()->GetController().LoadURLWithParams(params); // ??WARNING!?? // LoadURLWithParams() triggers JS events which can call destroy() on |this|. // It‘s not safe to assume that |this| points to valid memory at this point. if (!weak_this) return; // Set the background color of RenderWidgetHostView. // We have to call it right after LoadURL because the RenderViewHost is only // created after loading a page. auto* const view = weak_this->web_contents()->GetRenderWidgetHostView(); if (view) { auto* web_preferences = WebContentsPreferences::From(web_contents()); std::string color_name; if (web_preferences->GetPreference(options::kBackgroundColor, &color_name)) { view->SetBackgroundColor(ParseHexColor(color_name)); } else { view->SetBackgroundColor(SK_ColorTRANSPARENT); } } } void WebContents::DownloadURL(const GURL& url) { auto* browser_context = web_contents()->GetBrowserContext(); auto* download_manager = content::BrowserContext::GetDownloadManager(browser_context); std::unique_ptr<download::DownloadUrlParameters> download_params( content::DownloadRequestUtils::CreateDownloadForWebContentsMainFrame( web_contents(), url, MISSING_TRAFFIC_ANNOTATION)); download_manager->DownloadUrl(std::move(download_params)); } GURL WebContents::GetURL() const { return web_contents()->GetURL(); } base::string16 WebContents::GetTitle() const { return web_contents()->GetTitle(); } bool WebContents::IsLoading() const { return web_contents()->IsLoading(); } bool WebContents::IsLoadingMainFrame() const { return web_contents()->IsLoadingToDifferentDocument(); } bool WebContents::IsWaitingForResponse() const { return web_contents()->IsWaitingForResponse(); } void WebContents::Stop() { web_contents()->Stop(); } void WebContents::GoBack() { electron::AtomBrowserClient::SuppressRendererProcessRestartForOnce(); web_contents()->GetController().GoBack(); } void WebContents::GoForward() { electron::AtomBrowserClient::SuppressRendererProcessRestartForOnce(); web_contents()->GetController().GoForward(); } void WebContents::GoToOffset(int offset) { electron::AtomBrowserClient::SuppressRendererProcessRestartForOnce(); web_contents()->GetController().GoToOffset(offset); } const std::string WebContents::GetWebRTCIPHandlingPolicy() const { return web_contents()->GetMutableRendererPrefs()->webrtc_ip_handling_policy; } void WebContents::SetWebRTCIPHandlingPolicy( const std::string& webrtc_ip_handling_policy) { if (GetWebRTCIPHandlingPolicy() == webrtc_ip_handling_policy) return; web_contents()->GetMutableRendererPrefs()->webrtc_ip_handling_policy = webrtc_ip_handling_policy; web_contents()->SyncRendererPrefs(); } bool WebContents::IsCrashed() const { return web_contents()->IsCrashed(); } void WebContents::SetUserAgent(const std::string& user_agent, gin_helper::Arguments* args) { web_contents()->SetUserAgentOverride(user_agent, false); } std::string WebContents::GetUserAgent() { return web_contents()->GetUserAgentOverride(); } v8::Local<v8::Promise> WebContents::SavePage( const base::FilePath& full_file_path, const content::SavePageType& save_type) { gin_helper::Promise<void> promise(isolate()); v8::Local<v8::Promise> handle = promise.GetHandle(); auto* handler = new SavePageHandler(web_contents(), std::move(promise)); handler->Handle(full_file_path, save_type); return handle; } void WebContents::OpenDevTools(gin_helper::Arguments* args) { if (type_ == Type::REMOTE) return; if (!enable_devtools_) return; std::string state; if (type_ == Type::WEB_VIEW || !owner_window()) { state = "detach"; } bool activate = true; if (args && args->Length() == 1) { gin_helper::Dictionary options; if (args->GetNext(&options)) { options.Get("mode", &state); options.Get("activate", &activate); } } managed_web_contents()->SetDockState(state); managed_web_contents()->ShowDevTools(activate); } void WebContents::CloseDevTools() { if (type_ == Type::REMOTE) return; managed_web_contents()->CloseDevTools(); } bool WebContents::IsDevToolsOpened() { if (type_ == Type::REMOTE) return false; return managed_web_contents()->IsDevToolsViewShowing(); } bool WebContents::IsDevToolsFocused() { if (type_ == Type::REMOTE) return false; return managed_web_contents()->GetView()->IsDevToolsViewFocused(); } void WebContents::EnableDeviceEmulation( const blink::WebDeviceEmulationParams& params) { if (type_ == Type::REMOTE) return; auto* frame_host = web_contents()->GetMainFrame(); if (frame_host) { auto* widget_host = frame_host ? frame_host->GetView()->GetRenderWidgetHost() : nullptr; if (!widget_host) return; widget_host->Send(new WidgetMsg_EnableDeviceEmulation( widget_host->GetRoutingID(), params)); } } void WebContents::DisableDeviceEmulation() { if (type_ == Type::REMOTE) return; auto* frame_host = web_contents()->GetMainFrame(); if (frame_host) { auto* widget_host = frame_host ? frame_host->GetView()->GetRenderWidgetHost() : nullptr; if (!widget_host) return; widget_host->Send( new WidgetMsg_DisableDeviceEmulation(widget_host->GetRoutingID())); } } void WebContents::ToggleDevTools() { if (IsDevToolsOpened()) CloseDevTools(); else OpenDevTools(nullptr); } void WebContents::InspectElement(int x, int y) { if (type_ == Type::REMOTE) return; if (!enable_devtools_) return; if (!managed_web_contents()->GetDevToolsWebContents()) OpenDevTools(nullptr); managed_web_contents()->InspectElement(x, y); } void WebContents::InspectSharedWorkerById(const std::string& workerId) { if (type_ == Type::REMOTE) return; if (!enable_devtools_) return; for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) { if (agent_host->GetType() == content::DevToolsAgentHost::kTypeSharedWorker) { if (agent_host->GetId() == workerId) { OpenDevTools(nullptr); managed_web_contents()->AttachTo(agent_host); break; } } } } std::vector<scoped_refptr<content::DevToolsAgentHost>> WebContents::GetAllSharedWorkers() { std::vector<scoped_refptr<content::DevToolsAgentHost>> shared_workers; if (type_ == Type::REMOTE) return shared_workers; if (!enable_devtools_) return shared_workers; for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) { if (agent_host->GetType() == content::DevToolsAgentHost::kTypeSharedWorker) { shared_workers.push_back(agent_host); } } return shared_workers; } void WebContents::InspectSharedWorker() { if (type_ == Type::REMOTE) return; if (!enable_devtools_) return; for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) { if (agent_host->GetType() == content::DevToolsAgentHost::kTypeSharedWorker) { OpenDevTools(nullptr); managed_web_contents()->AttachTo(agent_host); break; } } } void WebContents::InspectServiceWorker() { if (type_ == Type::REMOTE) return; if (!enable_devtools_) return; for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) { if (agent_host->GetType() == content::DevToolsAgentHost::kTypeServiceWorker) { OpenDevTools(nullptr); managed_web_contents()->AttachTo(agent_host); break; } } } void WebContents::SetIgnoreMenuShortcuts(bool ignore) { auto* web_preferences = WebContentsPreferences::From(web_contents()); DCHECK(web_preferences); web_preferences->preference()->SetKey("ignoreMenuShortcuts", base::Value(ignore)); } void WebContents::SetAudioMuted(bool muted) { web_contents()->SetAudioMuted(muted); } bool WebContents::IsAudioMuted() { return web_contents()->IsAudioMuted(); } bool WebContents::IsCurrentlyAudible() { return web_contents()->IsCurrentlyAudible(); } #if BUILDFLAG(ENABLE_PRINTING) void WebContents::Print(gin_helper::Arguments* args) { gin_helper::Dictionary options = gin::Dictionary::CreateEmpty(args->isolate()); base::Value settings(base::Value::Type::DICTIONARY); if (args->Length() >= 1 && !args->GetNext(&options)) { args->ThrowError("webContents.print(): Invalid print settings specified."); return; } printing::CompletionCallback callback; if (args->Length() == 2 && !args->GetNext(&callback)) { args->ThrowError( "webContents.print(): Invalid optional callback provided."); return; } // Set optional silent printing bool silent = false; options.Get("silent", &silent); bool print_background = false; options.Get("printBackground", &print_background); settings.SetBoolKey(printing::kSettingShouldPrintBackgrounds, print_background); // Set custom margin settings gin_helper::Dictionary margins = gin::Dictionary::CreateEmpty(args->isolate()); if (options.Get("margins", &margins)) { printing::MarginType margin_type = printing::DEFAULT_MARGINS; margins.Get("marginType", &margin_type); settings.SetIntKey(printing::kSettingMarginsType, margin_type); if (margin_type == printing::CUSTOM_MARGINS) { int top = 0; margins.Get("top", &top); settings.SetIntKey(printing::kSettingMarginTop, top); int bottom = 0; margins.Get("bottom", &bottom); settings.SetIntKey(printing::kSettingMarginBottom, bottom); int left = 0; margins.Get("left", &left); settings.SetIntKey(printing::kSettingMarginLeft, left); int right = 0; margins.Get("right", &right); settings.SetIntKey(printing::kSettingMarginRight, right); } } else { settings.SetIntKey(printing::kSettingMarginsType, printing::DEFAULT_MARGINS); } // Set whether to print color or greyscale bool print_color = true; options.Get("color", &print_color); int color_setting = print_color ? printing::COLOR : printing::GRAY; settings.SetIntKey(printing::kSettingColor, color_setting); // Is the orientation landscape or portrait. bool landscape = false; options.Get("landscape", &landscape); settings.SetBoolKey(printing::kSettingLandscape, landscape); // We set the default to empty string here and only update // if at the Chromium level if it‘s non-empty // Printer device name as opened by the OS. base::string16 device_name; options.Get("deviceName", &device_name); settings.SetStringKey(printing::kSettingDeviceName, device_name); int scale_factor = 100; options.Get("scaleFactor", &scale_factor); settings.SetIntKey(printing::kSettingScaleFactor, scale_factor); int pages_per_sheet = 1; options.Get("pagesPerSheet", &pages_per_sheet); settings.SetIntKey(printing::kSettingPagesPerSheet, pages_per_sheet); // True if the user wants to print with collate. bool collate = true; options.Get("collate", &collate); settings.SetBoolKey(printing::kSettingCollate, collate); // The number of individual copies to print int copies = 1; options.Get("copies", &copies); settings.SetIntKey(printing::kSettingCopies, copies); // Strings to be printed as headers and footers if requested by the user. std::string header; options.Get("header", &header); std::string footer; options.Get("footer", &footer); if (!(header.empty() && footer.empty())) { settings.SetBoolKey(printing::kSettingHeaderFooterEnabled, true); settings.SetStringKey(printing::kSettingHeaderFooterTitle, header); settings.SetStringKey(printing::kSettingHeaderFooterURL, footer); } else { settings.SetBoolKey(printing::kSettingHeaderFooterEnabled, false); } // We don‘t want to allow the user to enable these settings // but we need to set them or a CHECK is hit. settings.SetIntKey(printing::kSettingPrinterType, printing::kLocalPrinter); settings.SetBoolKey(printing::kSettingShouldPrintSelectionOnly, false); settings.SetBoolKey(printing::kSettingRasterizePdf, false); // Set custom page ranges to print std::vector<gin_helper::Dictionary> page_ranges; if (options.Get("pageRanges", &page_ranges)) { base::Value page_range_list(base::Value::Type::LIST); for (auto& range : page_ranges) { int from, to; if (range.Get("from", &from) && range.Get("to", &to)) { base::Value range(base::Value::Type::DICTIONARY); range.SetIntKey(printing::kSettingPageRangeFrom, from); range.SetIntKey(printing::kSettingPageRangeTo, to); page_range_list.Append(std::move(range)); } else { continue; } } if (page_range_list.GetList().size() > 0) settings.SetPath(printing::kSettingPageRange, std::move(page_range_list)); } // Duplex type user wants to use. printing::DuplexMode duplex_mode; options.Get("duplexMode", &duplex_mode); settings.SetIntKey(printing::kSettingDuplexMode, duplex_mode); // Set custom dots per inch (dpi) gin_helper::Dictionary dpi_settings; int dpi = 72; if (options.Get("dpi", &dpi_settings)) { int horizontal = 72; dpi_settings.Get("horizontal", &horizontal); settings.SetIntKey(printing::kSettingDpiHorizontal, horizontal); int vertical = 72; dpi_settings.Get("vertical", &vertical); settings.SetIntKey(printing::kSettingDpiVertical, vertical); } else { settings.SetIntKey(printing::kSettingDpiHorizontal, dpi); settings.SetIntKey(printing::kSettingDpiVertical, dpi); } auto* print_view_manager = printing::PrintViewManagerBasic::FromWebContents(web_contents()); auto* focused_frame = web_contents()->GetFocusedFrame(); auto* rfh = focused_frame && focused_frame->HasSelection() ? focused_frame : web_contents()->GetMainFrame(); print_view_manager->PrintNow(rfh, silent, std::move(settings), std::move(callback)); } std::vector<printing::PrinterBasicInfo> WebContents::GetPrinterList() { std::vector<printing::PrinterBasicInfo> printers; auto print_backend = printing::PrintBackend::CreateInstance( nullptr, g_browser_process->GetApplicationLocale()); { // TODO(deepak1556): Deprecate this api in favor of an // async version and post a non blocing task call. base::ThreadRestrictions::ScopedAllowIO allow_io; print_backend->EnumeratePrinters(&printers); } return printers; } v8::Local<v8::Promise> WebContents::PrintToPDF(base::DictionaryValue settings) { gin_helper::Promise<v8::Local<v8::Value>> promise(isolate()); v8::Local<v8::Promise> handle = promise.GetHandle(); PrintPreviewMessageHandler::FromWebContents(web_contents()) ->PrintToPDF(std::move(settings), std::move(promise)); return handle; } #endif void WebContents::AddWorkSpace(gin_helper::Arguments* args, const base::FilePath& path) { if (path.empty()) { args->ThrowError("path cannot be empty"); return; } DevToolsAddFileSystem(std::string(), path); } void WebContents::RemoveWorkSpace(gin_helper::Arguments* args, const base::FilePath& path) { if (path.empty()) { args->ThrowError("path cannot be empty"); return; } DevToolsRemoveFileSystem(path); } void WebContents::Undo() { web_contents()->Undo(); } void WebContents::Redo() { web_contents()->Redo(); } void WebContents::Cut() { web_contents()->Cut(); } void WebContents::Copy() { web_contents()->Copy(); } void WebContents::Paste() { web_contents()->Paste(); } void WebContents::PasteAndMatchStyle() { web_contents()->PasteAndMatchStyle(); } void WebContents::Delete() { web_contents()->Delete(); } void WebContents::SelectAll() { web_contents()->SelectAll(); } void WebContents::Unselect() { web_contents()->CollapseSelection(); } void WebContents::Replace(const base::string16& word) { web_contents()->Replace(word); } void WebContents::ReplaceMisspelling(const base::string16& word) { web_contents()->ReplaceMisspelling(word); } uint32_t WebContents::FindInPage(gin_helper::Arguments* args) { base::string16 search_text; if (!args->GetNext(&search_text) || search_text.empty()) { args->ThrowError("Must provide a non-empty search content"); return 0; } uint32_t request_id = GetNextRequestId(); gin_helper::Dictionary dict; auto options = blink::mojom::FindOptions::New(); if (args->GetNext(&dict)) { dict.Get("forward", &options->forward); dict.Get("matchCase", &options->match_case); dict.Get("findNext", &options->find_next); } web_contents()->Find(request_id, search_text, std::move(options)); return request_id; } void WebContents::StopFindInPage(content::StopFindAction action) { web_contents()->StopFinding(action); } void WebContents::ShowDefinitionForSelection() { #if defined(OS_MACOSX) auto* const view = web_contents()->GetRenderWidgetHostView(); if (view) view->ShowDefinitionForSelection(); #endif } void WebContents::CopyImageAt(int x, int y) { auto* const host = web_contents()->GetMainFrame(); if (host) host->CopyImageAt(x, y); } void WebContents::Focus() { web_contents()->Focus(); } #if !defined(OS_MACOSX) bool WebContents::IsFocused() const { auto* view = web_contents()->GetRenderWidgetHostView(); if (!view) return false; if (GetType() != Type::BACKGROUND_PAGE) { auto* window = web_contents()->GetNativeView()->GetToplevelWindow(); if (window && !window->IsVisible()) return false; } return view->HasFocus(); } #endif void WebContents::TabTraverse(bool reverse) { web_contents()->FocusThroughTabTraversal(reverse); } bool WebContents::SendIPCMessage(bool internal, bool send_to_all, const std::string& channel, v8::Local<v8::Value> args) { blink::CloneableMessage message; if (!gin::ConvertFromV8(isolate(), args, &message)) { isolate()->ThrowException(v8::Exception::Error( gin::StringToV8(isolate(), "Failed to serialize arguments"))); return false; } return SendIPCMessageWithSender(internal, send_to_all, channel, std::move(message)); } bool WebContents::SendIPCMessageWithSender(bool internal, bool send_to_all, const std::string& channel, blink::CloneableMessage args, int32_t sender_id) { std::vector<content::RenderFrameHost*> target_hosts; if (!send_to_all) { auto* frame_host = web_contents()->GetMainFrame(); if (frame_host) { target_hosts.push_back(frame_host); } } else { target_hosts = web_contents()->GetAllFrames(); } for (auto* frame_host : target_hosts) { mojo::AssociatedRemote<mojom::ElectronRenderer> electron_renderer; frame_host->GetRemoteAssociatedInterfaces()->GetInterface( &electron_renderer); electron_renderer->Message(internal, false, channel, args.ShallowClone(), sender_id); } return true; } bool WebContents::SendIPCMessageToFrame(bool internal, bool send_to_all, int32_t frame_id, const std::string& channel, v8::Local<v8::Value> args) { blink::CloneableMessage message; if (!gin::ConvertFromV8(isolate(), args, &message)) { isolate()->ThrowException(v8::Exception::Error( gin::StringToV8(isolate(), "Failed to serialize arguments"))); return false; } auto frames = web_contents()->GetAllFrames(); auto iter = std::find_if(frames.begin(), frames.end(), [frame_id](auto* f) { return f->GetRoutingID() == frame_id; }); if (iter == frames.end()) return false; if (!(*iter)->IsRenderFrameLive()) return false; mojo::AssociatedRemote<mojom::ElectronRenderer> electron_renderer; (*iter)->GetRemoteAssociatedInterfaces()->GetInterface(&electron_renderer); electron_renderer->Message(internal, send_to_all, channel, std::move(message), 0 /* sender_id */); return true; } void WebContents::SendInputEvent(v8::Isolate* isolate, v8::Local<v8::Value> input_event) { content::RenderWidgetHostView* view = web_contents()->GetRenderWidgetHostView(); if (!view) return; content::RenderWidgetHost* rwh = view->GetRenderWidgetHost(); blink::WebInputEvent::Type type = gin::GetWebInputEventType(isolate, input_event); if (blink::WebInputEvent::IsMouseEventType(type)) { blink::WebMouseEvent mouse_event; if (gin::ConvertFromV8(isolate, input_event, &mouse_event)) { if (IsOffScreen()) { #if BUILDFLAG(ENABLE_OSR) GetOffScreenRenderWidgetHostView()->SendMouseEvent(mouse_event); #endif } else { rwh->ForwardMouseEvent(mouse_event); } return; } } else if (blink::WebInputEvent::IsKeyboardEventType(type)) { content::NativeWebKeyboardEvent keyboard_event( blink::WebKeyboardEvent::kRawKeyDown, blink::WebInputEvent::kNoModifiers, ui::EventTimeForNow()); if (gin::ConvertFromV8(isolate, input_event, &keyboard_event)) { rwh->ForwardKeyboardEvent(keyboard_event); return; } } else if (type == blink::WebInputEvent::kMouseWheel) { blink::WebMouseWheelEvent mouse_wheel_event; if (gin::ConvertFromV8(isolate, input_event, &mouse_wheel_event)) { if (IsOffScreen()) { #if BUILDFLAG(ENABLE_OSR) GetOffScreenRenderWidgetHostView()->SendMouseWheelEvent( mouse_wheel_event); #endif } else { // Chromium expects phase info in wheel events (and applies a // DCHECK to verify it). See: https://crbug.com/756524. mouse_wheel_event.phase = blink::WebMouseWheelEvent::kPhaseBegan; mouse_wheel_event.dispatch_type = blink::WebInputEvent::kBlocking; rwh->ForwardWheelEvent(mouse_wheel_event); // Send a synthetic wheel event with phaseEnded to finish scrolling. mouse_wheel_event.has_synthetic_phase = true; mouse_wheel_event.delta_x = 0; mouse_wheel_event.delta_y = 0; mouse_wheel_event.phase = blink::WebMouseWheelEvent::kPhaseEnded; mouse_wheel_event.dispatch_type = blink::WebInputEvent::kEventNonBlocking; rwh->ForwardWheelEvent(mouse_wheel_event); } return; } } isolate->ThrowException( v8::Exception::Error(gin::StringToV8(isolate, "Invalid event object"))); } void WebContents::BeginFrameSubscription(gin_helper::Arguments* args) { bool only_dirty = false; FrameSubscriber::FrameCaptureCallback callback; args->GetNext(&only_dirty); if (!args->GetNext(&callback)) { args->ThrowError(); return; } frame_subscriber_ = std::make_unique<FrameSubscriber>(web_contents(), callback, only_dirty); } void WebContents::EndFrameSubscription() { frame_subscriber_.reset(); } void WebContents::StartDrag(const gin_helper::Dictionary& item, gin_helper::Arguments* args) { base::FilePath file; std::vector<base::FilePath> files; if (!item.Get("files", &files) && item.Get("file", &file)) { files.push_back(file); } gin::Handle<NativeImage> icon; if (!item.Get("icon", &icon)) { args->ThrowError("Must specify non-empty ‘icon‘ option"); return; } // Start dragging. if (!files.empty()) { base::MessageLoopCurrent::ScopedNestableTaskAllower allow; DragFileItems(files, icon->image(), web_contents()->GetNativeView()); } else { args->ThrowError("Must specify either ‘file‘ or ‘files‘ option"); } } v8::Local<v8::Promise> WebContents::CapturePage(gin_helper::Arguments* args) { gfx::Rect rect; gin_helper::Promise<gfx::Image> promise(isolate()); v8::Local<v8::Promise> handle = promise.GetHandle(); // get rect arguments if they exist args->GetNext(&rect); auto* const view = web_contents()->GetRenderWidgetHostView(); if (!view) { promise.Resolve(gfx::Image()); return handle; } // Capture full page if user doesn‘t specify a |rect|. const gfx::Size view_size = rect.IsEmpty() ? view->GetViewBounds().size() : rect.size(); // By default, the requested bitmap size is the view size in screen // coordinates. However, if there‘s more pixel detail available on the // current system, increase the requested bitmap size to capture it all. gfx::Size bitmap_size = view_size; const gfx::NativeView native_view = view->GetNativeView(); const float scale = display::Screen::GetScreen() ->GetDisplayNearestView(native_view) .device_scale_factor(); if (scale > 1.0f) bitmap_size = gfx::ScaleToCeiledSize(view_size, scale); view->CopyFromSurface(gfx::Rect(rect.origin(), view_size), bitmap_size, base::BindOnce(&OnCapturePageDone, std::move(promise))); return handle; } void WebContents::OnCursorChange(const content::WebCursor& cursor) { const content::CursorInfo& info = cursor.info(); if (info.type == ui::CursorType::kCustom) { Emit("cursor-changed", CursorTypeToString(info), gfx::Image::CreateFrom1xBitmap(info.custom_image), info.image_scale_factor, gfx::Size(info.custom_image.width(), info.custom_image.height()), info.hotspot); } else { Emit("cursor-changed", CursorTypeToString(info)); } } bool WebContents::IsGuest() const { return type_ == Type::WEB_VIEW; } void WebContents::AttachToIframe(content::WebContents* embedder_web_contents, int embedder_frame_id) { if (guest_delegate_) guest_delegate_->AttachToIframe(embedder_web_contents, embedder_frame_id); } bool WebContents::IsOffScreen() const { #if BUILDFLAG(ENABLE_OSR) return type_ == Type::OFF_SCREEN; #else return false; #endif } #if BUILDFLAG(ENABLE_OSR) void WebContents::OnPaint(const gfx::Rect& dirty_rect, const SkBitmap& bitmap) { Emit("paint", dirty_rect, gfx::Image::CreateFrom1xBitmap(bitmap)); } void WebContents::StartPainting() { auto* osr_wcv = GetOffScreenWebContentsView(); if (osr_wcv) osr_wcv->SetPainting(true); } void WebContents::StopPainting() { auto* osr_wcv = GetOffScreenWebContentsView(); if (osr_wcv) osr_wcv->SetPainting(false); } bool WebContents::IsPainting() const { auto* osr_wcv = GetOffScreenWebContentsView(); return osr_wcv && osr_wcv->IsPainting(); } void WebContents::SetFrameRate(int frame_rate) { auto* osr_wcv = GetOffScreenWebContentsView(); if (osr_wcv) osr_wcv->SetFrameRate(frame_rate); } int WebContents::GetFrameRate() const { auto* osr_wcv = GetOffScreenWebContentsView(); return osr_wcv ? osr_wcv->GetFrameRate() : 0; } #endif void WebContents::Invalidate() { if (IsOffScreen()) { #if BUILDFLAG(ENABLE_OSR) auto* osr_rwhv = GetOffScreenRenderWidgetHostView(); if (osr_rwhv) osr_rwhv->Invalidate(); #endif } else { auto* const window = owner_window(); if (window) window->Invalidate(); } } gfx::Size WebContents::GetSizeForNewRenderView(content::WebContents* wc) { if (IsOffScreen() && wc == web_contents()) { auto* relay = NativeWindowRelay::FromWebContents(web_contents()); if (relay) { auto* owner_window = relay->GetNativeWindow(); return owner_window ? owner_window->GetSize() : gfx::Size(); } } return gfx::Size(); } void WebContents::SetZoomLevel(double level) { zoom_controller_->SetZoomLevel(level); } double WebContents::GetZoomLevel() const { return zoom_controller_->GetZoomLevel(); } void WebContents::SetZoomFactor(double factor) { auto level = blink::PageZoomFactorToZoomLevel(factor); SetZoomLevel(level); } double WebContents::GetZoomFactor() const { auto level = GetZoomLevel(); return blink::PageZoomLevelToZoomFactor(level); } void WebContents::SetTemporaryZoomLevel(double level) { zoom_controller_->SetTemporaryZoomLevel(level); } void WebContents::DoGetZoomLevel(DoGetZoomLevelCallback callback) { std::move(callback).Run(GetZoomLevel()); } std::vector<base::FilePath::StringType> WebContents::GetPreloadPaths() const { auto result = SessionPreferences::GetValidPreloads(GetBrowserContext()); if (auto* web_preferences = WebContentsPreferences::From(web_contents())) { base::FilePath::StringType preload; if (web_preferences->GetPreloadPath(&preload)) { result.emplace_back(preload); } } return result; } v8::Local<v8::Value> WebContents::GetWebPreferences( v8::Isolate* isolate) const { auto* web_preferences = WebContentsPreferences::From(web_contents()); if (!web_preferences) return v8::Null(isolate); return gin::ConvertToV8(isolate, *web_preferences->preference()); } v8::Local<v8::Value> WebContents::GetLastWebPreferences( v8::Isolate* isolate) const { auto* web_preferences = WebContentsPreferences::From(web_contents()); if (!web_preferences) return v8::Null(isolate); return gin::ConvertToV8(isolate, *web_preferences->last_preference()); } v8::Local<v8::Value> WebContents::GetOwnerBrowserWindow() const { if (owner_window()) return BrowserWindow::From(isolate(), owner_window()); else return v8::Null(isolate()); } int32_t WebContents::ID() const { return weak_map_id(); } v8::Local<v8::Value> WebContents::Session(v8::Isolate* isolate) { return v8::Local<v8::Value>::New(isolate, session_); } content::WebContents* WebContents::HostWebContents() const { if (!embedder_) return nullptr; return embedder_->web_contents(); } void WebContents::SetEmbedder(const WebContents* embedder) { if (embedder) { NativeWindow* owner_window = nullptr; auto* relay = NativeWindowRelay::FromWebContents(embedder->web_contents()); if (relay) { owner_window = relay->GetNativeWindow(); } if (owner_window) SetOwnerWindow(owner_window); content::RenderWidgetHostView* rwhv = web_contents()->GetRenderWidgetHostView(); if (rwhv) { rwhv->Hide(); rwhv->Show(); } } } void WebContents::SetDevToolsWebContents(const WebContents* devtools) { if (managed_web_contents()) managed_web_contents()->SetDevToolsWebContents(devtools->web_contents()); } v8::Local<v8::Value> WebContents::GetNativeView() const { gfx::NativeView ptr = web_contents()->GetNativeView(); auto buffer = node::Buffer::Copy(isolate(), reinterpret_cast<char*>(&ptr), sizeof(gfx::NativeView)); if (buffer.IsEmpty()) return v8::Null(isolate()); else return buffer.ToLocalChecked(); } v8::Local<v8::Value> WebContents::DevToolsWebContents(v8::Isolate* isolate) { if (devtools_web_contents_.IsEmpty()) return v8::Null(isolate); else return v8::Local<v8::Value>::New(isolate, devtools_web_contents_); } v8::Local<v8::Value> WebContents::Debugger(v8::Isolate* isolate) { if (debugger_.IsEmpty()) { auto handle = electron::api::Debugger::Create(isolate, web_contents()); debugger_.Reset(isolate, handle.ToV8()); } return v8::Local<v8::Value>::New(isolate, debugger_); } void WebContents::GrantOriginAccess(const GURL& url) { content::ChildProcessSecurityPolicy::GetInstance()->GrantCommitOrigin( web_contents()->GetMainFrame()->GetProcess()->GetID(), url::Origin::Create(url)); } v8::Local<v8::Promise> WebContents::TakeHeapSnapshot( const base::FilePath& file_path) { gin_helper::Promise<void> promise(isolate()); v8::Local<v8::Promise> handle = promise.GetHandle(); base::ThreadRestrictions::ScopedAllowIO allow_io; base::File file(file_path, base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE); if (!file.IsValid()) { promise.RejectWithErrorMessage("takeHeapSnapshot failed"); return handle; } auto* frame_host = web_contents()->GetMainFrame(); if (!frame_host) { promise.RejectWithErrorMessage("takeHeapSnapshot failed"); return handle; } // This dance with `base::Owned` is to ensure that the interface stays alive // until the callback is called. Otherwise it would be closed at the end of // this function. auto electron_renderer = std::make_unique<mojo::AssociatedRemote<mojom::ElectronRenderer>>(); frame_host->GetRemoteAssociatedInterfaces()->GetInterface( electron_renderer.get()); auto* raw_ptr = electron_renderer.get(); (*raw_ptr)->TakeHeapSnapshot( mojo::WrapPlatformFile(file.TakePlatformFile()), base::BindOnce( [](mojo::AssociatedRemote<mojom::ElectronRenderer>* ep, gin_helper::Promise<void> promise, bool success) { if (success) { promise.Resolve(); } else { promise.RejectWithErrorMessage("takeHeapSnapshot failed"); } }, base::Owned(std::move(electron_renderer)), std::move(promise))); return handle; } // static void WebContents::BuildPrototype(v8::Isolate* isolate, v8::Local<v8::FunctionTemplate> prototype) { prototype->SetClassName(gin::StringToV8(isolate, "WebContents")); gin_helper::Destroyable::MakeDestroyable(isolate, prototype); gin_helper::ObjectTemplateBuilder(isolate, prototype->PrototypeTemplate()) .SetMethod("setBackgroundThrottling", &WebContents::SetBackgroundThrottling) .SetMethod("getProcessId", &WebContents::GetProcessID) .SetMethod("getOSProcessId", &WebContents::GetOSProcessID) .SetMethod("_getOSProcessIdForFrame", &WebContents::GetOSProcessIdForFrame) .SetMethod("equal", &WebContents::Equal) .SetMethod("_loadURL", &WebContents::LoadURL) .SetMethod("downloadURL", &WebContents::DownloadURL) .SetMethod("_getURL", &WebContents::GetURL) .SetMethod("getTitle", &WebContents::GetTitle) .SetMethod("isLoading", &WebContents::IsLoading) .SetMethod("isLoadingMainFrame", &WebContents::IsLoadingMainFrame) .SetMethod("isWaitingForResponse", &WebContents::IsWaitingForResponse) .SetMethod("_stop", &WebContents::Stop) .SetMethod("_goBack", &WebContents::GoBack) .SetMethod("_goForward", &WebContents::GoForward) .SetMethod("_goToOffset", &WebContents::GoToOffset) .SetMethod("isCrashed", &WebContents::IsCrashed) .SetMethod("_setUserAgent", &WebContents::SetUserAgent) .SetMethod("_getUserAgent", &WebContents::GetUserAgent) .SetProperty("userAgent", &WebContents::GetUserAgent, &WebContents::SetUserAgent) .SetMethod("savePage", &WebContents::SavePage) .SetMethod("openDevTools", &WebContents::OpenDevTools) .SetMethod("closeDevTools", &WebContents::CloseDevTools) .SetMethod("isDevToolsOpened", &WebContents::IsDevToolsOpened) .SetMethod("isDevToolsFocused", &WebContents::IsDevToolsFocused) .SetMethod("enableDeviceEmulation", &WebContents::EnableDeviceEmulation) .SetMethod("disableDeviceEmulation", &WebContents::DisableDeviceEmulation) .SetMethod("toggleDevTools", &WebContents::ToggleDevTools) .SetMethod("inspectElement", &WebContents::InspectElement) .SetMethod("setIgnoreMenuShortcuts", &WebContents::SetIgnoreMenuShortcuts) .SetMethod("_setAudioMuted", &WebContents::SetAudioMuted) .SetMethod("_isAudioMuted", &WebContents::IsAudioMuted) .SetProperty("audioMuted", &WebContents::IsAudioMuted, &WebContents::SetAudioMuted) .SetMethod("isCurrentlyAudible", &WebContents::IsCurrentlyAudible) .SetMethod("undo", &WebContents::Undo) .SetMethod("redo", &WebContents::Redo) .SetMethod("cut", &WebContents::Cut) .SetMethod("copy", &WebContents::Copy) .SetMethod("paste", &WebContents::Paste) .SetMethod("pasteAndMatchStyle", &WebContents::PasteAndMatchStyle) .SetMethod("delete", &WebContents::Delete) .SetMethod("selectAll", &WebContents::SelectAll) .SetMethod("unselect", &WebContents::Unselect) .SetMethod("replace", &WebContents::Replace) .SetMethod("replaceMisspelling", &WebContents::ReplaceMisspelling) .SetMethod("findInPage", &WebContents::FindInPage) .SetMethod("stopFindInPage", &WebContents::StopFindInPage) .SetMethod("focus", &WebContents::Focus) .SetMethod("isFocused", &WebContents::IsFocused) .SetMethod("tabTraverse", &WebContents::TabTraverse) .SetMethod("_send", &WebContents::SendIPCMessage) .SetMethod("_sendToFrame", &WebContents::SendIPCMessageToFrame) .SetMethod("sendInputEvent", &WebContents::SendInputEvent) .SetMethod("beginFrameSubscription", &WebContents::BeginFrameSubscription) .SetMethod("endFrameSubscription", &WebContents::EndFrameSubscription) .SetMethod("startDrag", &WebContents::StartDrag) .SetMethod("attachToIframe", &WebContents::AttachToIframe) .SetMethod("detachFromOuterFrame", &WebContents::DetachFromOuterFrame) .SetMethod("isOffscreen", &WebContents::IsOffScreen) #if BUILDFLAG(ENABLE_OSR) .SetMethod("startPainting", &WebContents::StartPainting) .SetMethod("stopPainting", &WebContents::StopPainting) .SetMethod("isPainting", &WebContents::IsPainting) .SetMethod("_setFrameRate", &WebContents::SetFrameRate) .SetMethod("_getFrameRate", &WebContents::GetFrameRate) .SetProperty("frameRate", &WebContents::GetFrameRate, &WebContents::SetFrameRate) #endif .SetMethod("invalidate", &WebContents::Invalidate) .SetMethod("_setZoomLevel", &WebContents::SetZoomLevel) .SetMethod("_getZoomLevel", &WebContents::GetZoomLevel) .SetProperty("zoomLevel", &WebContents::GetZoomLevel, &WebContents::SetZoomLevel) .SetMethod("_setZoomFactor", &WebContents::SetZoomFactor) .SetMethod("_getZoomFactor", &WebContents::GetZoomFactor) .SetProperty("zoomFactor", &WebContents::GetZoomFactor, &WebContents::SetZoomFactor) .SetMethod("getType", &WebContents::GetType) .SetMethod("_getPreloadPaths", &WebContents::GetPreloadPaths) .SetMethod("getWebPreferences", &WebContents::GetWebPreferences) .SetMethod("getLastWebPreferences", &WebContents::GetLastWebPreferences) .SetMethod("getOwnerBrowserWindow", &WebContents::GetOwnerBrowserWindow) .SetMethod("inspectServiceWorker", &WebContents::InspectServiceWorker) .SetMethod("inspectSharedWorker", &WebContents::InspectSharedWorker) .SetMethod("inspectSharedWorkerById", &WebContents::InspectSharedWorkerById) .SetMethod("getAllSharedWorkers", &WebContents::GetAllSharedWorkers) #if BUILDFLAG(ENABLE_PRINTING) .SetMethod("_print", &WebContents::Print) .SetMethod("_getPrinters", &WebContents::GetPrinterList) .SetMethod("_printToPDF", &WebContents::PrintToPDF) #endif .SetMethod("addWorkSpace", &WebContents::AddWorkSpace) .SetMethod("removeWorkSpace", &WebContents::RemoveWorkSpace) .SetMethod("showDefinitionForSelection", &WebContents::ShowDefinitionForSelection) .SetMethod("copyImageAt", &WebContents::CopyImageAt) .SetMethod("capturePage", &WebContents::CapturePage) .SetMethod("setEmbedder", &WebContents::SetEmbedder) .SetMethod("setDevToolsWebContents", &WebContents::SetDevToolsWebContents) .SetMethod("getNativeView", &WebContents::GetNativeView) .SetMethod("setWebRTCIPHandlingPolicy", &WebContents::SetWebRTCIPHandlingPolicy) .SetMethod("getWebRTCIPHandlingPolicy", &WebContents::GetWebRTCIPHandlingPolicy) .SetMethod("_grantOriginAccess", &WebContents::GrantOriginAccess) .SetMethod("takeHeapSnapshot", &WebContents::TakeHeapSnapshot) .SetProperty("id", &WebContents::ID) .SetProperty("session", &WebContents::Session) .SetProperty("hostWebContents", &WebContents::HostWebContents) .SetProperty("devToolsWebContents", &WebContents::DevToolsWebContents) .SetProperty("debugger", &WebContents::Debugger); } AtomBrowserContext* WebContents::GetBrowserContext() const { return static_cast<AtomBrowserContext*>(web_contents()->GetBrowserContext()); } // static gin::Handle<WebContents> WebContents::Create( v8::Isolate* isolate, const gin_helper::Dictionary& options) { return gin::CreateHandle(isolate, new WebContents(isolate, options)); } // static gin::Handle<WebContents> WebContents::CreateAndTake( v8::Isolate* isolate, std::unique_ptr<content::WebContents> web_contents, Type type) { return gin::CreateHandle( isolate, new WebContents(isolate, std::move(web_contents), type)); } // static gin::Handle<WebContents> WebContents::From(v8::Isolate* isolate, content::WebContents* web_contents) { auto* existing = TrackableObject::FromWrappedClass(isolate, web_contents); if (existing) return gin::CreateHandle(isolate, static_cast<WebContents*>(existing)); else return gin::Handle<WebContents>(); } // static gin::Handle<WebContents> WebContents::FromOrCreate( v8::Isolate* isolate, content::WebContents* web_contents) { auto existing = From(isolate, web_contents); if (!existing.IsEmpty()) return existing; else return gin::CreateHandle(isolate, new WebContents(isolate, web_contents)); } } // namespace api } // namespace electron namespace { using electron::api::WebContents; void Initialize(v8::Local<v8::Object> exports, v8::Local<v8::Value> unused, v8::Local<v8::Context> context, void* priv) { v8::Isolate* isolate = context->GetIsolate(); gin_helper::Dictionary dict(isolate, exports); dict.Set("WebContents", WebContents::GetConstructor(isolate) ->GetFunction(context) .ToLocalChecked()); dict.SetMethod("create", &WebContents::Create); dict.SetMethod("fromId", &WebContents::FromWeakMapID); dict.SetMethod("getAllWebContents", &WebContents::GetAll); } } // namespace NODE_LINKED_MODULE_CONTEXT_AWARE(atom_browser_web_contents, Initialize)
electron api sendInputEvent 源码
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原文地址：https://www.cnblogs.com/cbugs/p/12051220.html
