Chromium 前端window对象c++实现定义

前端中window.document window.alert()等一些列方法和对象在c++对应定义如下：

1、window对象接口定义文件window.idl

third_party\blink\renderer\core\frame\window.idl

// https://html.spec.whatwg.org/C/#the-window-object// FIXME: explain all uses of [CrossOrigin]
// NOTE: In the spec, Window inherits from EventTarget. We inject an additional
// layer to implement window's named properties object.
[ImplementedAs=DOMWindow,Global=Window,Exposed=Window
] interface Window : WindowProperties {// the current browsing context// FIXME: The spec uses the WindowProxy type for this and many other attributes.[LegacyUnforgeable, CrossOrigin, CachedAccessor=kWindowProxy] readonly attribute Window window;[Replaceable, CrossOrigin, CachedAccessor=kWindowProxy] readonly attribute Window self;[LegacyUnforgeable, CachedAccessor=kWindowDocument] readonly attribute Document document;attribute DOMString name;[PutForwards=href, LegacyUnforgeable, CrossOrigin=(Getter,Setter)] readonly attribute Location location;[CallWith=ScriptState] readonly attribute CustomElementRegistry customElements;readonly attribute History history;[Replaceable] readonly attribute Navigation navigation;[Replaceable, MeasureAs=BarPropLocationbar] readonly attribute BarProp locationbar;[Replaceable, MeasureAs=BarPropMenubar] readonly attribute BarProp menubar;[Replaceable, MeasureAs=BarPropPersonalbar] readonly attribute BarProp personalbar;[Replaceable, MeasureAs=BarPropScrollbars] readonly attribute BarProp scrollbars;[Replaceable, MeasureAs=BarPropStatusbar] readonly attribute BarProp statusbar;[Replaceable, MeasureAs=BarPropToolbar] readonly attribute BarProp toolbar;attribute DOMString status;[CrossOrigin, CallWith=Isolate] void close();[MeasureAs=WindowClosed, CrossOrigin] readonly attribute boolean closed;void stop();[CrossOrigin, CallWith=Isolate] void focus();[CrossOrigin] void blur();// other browsing contexts[Replaceable, CrossOrigin, CachedAccessor=kWindowProxy] readonly attribute Window frames;[Replaceable, CrossOrigin] readonly attribute unsigned long length;[LegacyUnforgeable, CrossOrigin] readonly attribute Window? top;// FIXME: opener should be of type any.[CrossOrigin, ImplementedAs=openerForBindings, CallWith=Isolate, RaisesException=Setter] attribute any opener;[Replaceable, CrossOrigin] readonly attribute Window? parent;[CheckSecurity=ReturnValue] readonly attribute Element? frameElement;[CallWith=Isolate, RaisesException] Window? open(optional USVString url="", optional DOMString target = "_blank", optional [LegacyNullToEmptyString] DOMString features = "");// indexed properties// https://html.spec.whatwg.org/C/browsers.html#windowproxy-getownproperty[NotEnumerable, CrossOrigin] getter Window (unsigned long index);// named properties// The spec defines the named getter on the Window interface, but we inject// the named properties object as its own interface that Window inherits// from.// getter object (DOMString name);// the user agent[LogActivity=GetterOnly] readonly attribute Navigator navigator;[RuntimeEnabled=OriginIsolationHeader] readonly attribute boolean originAgentCluster;// user prompts[Measure, CallWith=ScriptState] void alert();[Measure, CallWith=ScriptState] void alert(DOMString message);[Measure, CallWith=ScriptState] boolean confirm(optional DOMString message = "");[Measure, CallWith=ScriptState] DOMString? prompt(optional DOMString message = "", optional DOMString defaultValue = "");[Measure, CallWith=ScriptState] void print();[CrossOrigin, CallWith=Isolate, RaisesException] void postMessage(any message, USVString targetOrigin, optional sequence<object> transfer = []);[CrossOrigin, CallWith=Isolate, RaisesException] void postMessage(any message, optional WindowPostMessageOptions options = {});// WindowOrWorkerGlobalScope mixin// https://html.spec.whatwg.org/C/#windoworworkerglobalscope-mixin// https://wicg.github.io/origin-policy/#monkeypatch-html-windoworworkerglobalscope[Replaceable] readonly attribute DOMString origin;void queueMicrotask(VoidFunction callback);// AnimationFrameProvider mixin// https://html.spec.whatwg.org/C/#animation-frames[MeasureAs=UnprefixedRequestAnimationFrame] long requestAnimationFrame(FrameRequestCallback callback);void cancelAnimationFrame(long handle);// HTML obsolete features// https://html.spec.whatwg.org/C/#Window-partial[MeasureAs=WindowCaptureEvents] void captureEvents();[MeasureAs=WindowReleaseEvents] void releaseEvents();[Replaceable, SameObject] readonly attribute External external;// CSS Object Model (CSSOM)// https://drafts.csswg.org/cssom/#extensions-to-the-window-interface[Affects=Nothing, NewObject] CSSStyleDeclaration getComputedStyle(Element elt, optional DOMString? pseudoElt);// CSSOM View Module// https://drafts.csswg.org/cssom-view/#extensions-to-the-window-interface[HighEntropy, Measure, NewObject] MediaQueryList matchMedia(DOMString query);[SameObject, Replaceable] readonly attribute Screen screen;// browsing context[MeasureAs=WindowMove] void moveTo(long x, long y);[MeasureAs=WindowMove] void moveBy(long x, long y);[MeasureAs=WindowResize, RaisesException] void resizeTo(long x, long y);[MeasureAs=WindowResize, RaisesException] void resizeBy(long x, long y);// viewport[HighEntropy=Direct, MeasureAs=WindowInnerWidth, Replaceable] readonly attribute long innerWidth;[HighEntropy=Direct, MeasureAs=WindowInnerHeight, Replaceable] readonly attribute long innerHeight;// viewport scrolling[HighEntropy=Direct, MeasureAs=WindowScrollX, Replaceable] readonly attribute double scrollX;[HighEntropy=Direct, MeasureAs=WindowPageXOffset, Replaceable] readonly attribute double pageXOffset;[HighEntropy=Direct, MeasureAs=WindowScrollY, Replaceable] readonly attribute double scrollY;[HighEntropy=Direct, MeasureAs=WindowPageYOffset, Replaceable] readonly attribute double pageYOffset;void scroll(optional ScrollToOptions options = {});void scroll(unrestricted double x, unrestricted double y);void scrollTo(optional ScrollToOptions options = {});void scrollTo(unrestricted double x, unrestricted double y);void scrollBy(optional ScrollToOptions options = {});void scrollBy(unrestricted double x, unrestricted double y);// Visual Viewport API// https://github.com/WICG/ViewportAPI[Replaceable, SameObject] readonly attribute VisualViewport visualViewport;// client[HighEntropy=Direct, MeasureAs=WindowScreenX, Replaceable] readonly attribute long screenX;[HighEntropy=Direct, MeasureAs=WindowScreenY, Replaceable] readonly attribute long screenY;[HighEntropy=Direct, MeasureAs=WindowOuterWidth, Replaceable] readonly attribute long outerWidth;[HighEntropy=Direct, MeasureAs=WindowOuterHeight, Replaceable] readonly attribute long outerHeight;[HighEntropy=Direct, MeasureAs=WindowDevicePixelRatio, Replaceable] readonly attribute double devicePixelRatio;// Selection API// https://w3c.github.io/selection-api/#extensions-to-window-interface[Affects=Nothing] Selection? getSelection();// Console API// https://console.spec.whatwg.org/#console-interface// [Replaceable] readonly attribute Console console;// Console is installed by v8 inspector when context is created// and is left commented here just for documentation.// Compatibility// https://compat.spec.whatwg.org/#windoworientation-interface[RuntimeEnabled=OrientationEvent] attribute EventHandler onorientationchange;// This is the interface orientation in degrees. Some examples are://  0 is straight up; -90 is when the device is rotated 90 clockwise;//  90 is when rotated counter clockwise.[HighEntropy=Direct, MeasureAs=WindowOrientation, RuntimeEnabled=OrientationEvent] readonly attribute long orientation;// Event handler attribute for the pagereveal event.// https://drafts.csswg.org/css-view-transitions-2/#reveal-event[RuntimeEnabled=PageRevealEvent] attribute EventHandler onpagereveal;// Accessibility Object Model// https://github.com/WICG/aom/blob/HEAD/explainer.md[RuntimeEnabled=AccessibilityObjectModel, CallWith=ScriptState] Promise<ComputedAccessibleNode> getComputedAccessibleNode(Element element);// https://dom.spec.whatwg.org/#interface-window-extensions[Replaceable, GetterCallWith=ScriptState, MeasureAs=WindowEvent, NotEnumerable] readonly attribute any event;// Non-standard APIs[MeasureAs=WindowClientInformation, Replaceable] readonly attribute Navigator clientInformation;[MeasureAs=WindowFind] boolean find(optional DOMString string = "",optional boolean caseSensitive = false,optional boolean backwards = false,optional boolean wrap = false,optional boolean wholeWord = false,optional boolean searchInFrames = false,optional boolean showDialog = false);[MeasureAs=WindowOffscreenBuffering, Replaceable, NotEnumerable] readonly attribute boolean offscreenBuffering;[HighEntropy=Direct, MeasureAs=WindowScreenLeft, Replaceable] readonly attribute long screenLeft;[HighEntropy=Direct, MeasureAs=WindowScreenTop, Replaceable] readonly attribute long screenTop;[RuntimeEnabled=WindowDefaultStatus,MeasureAs=WindowDefaultStatus] attribute DOMString defaultStatus;[RuntimeEnabled=WindowDefaultStatus,MeasureAs=WindowDefaultstatus, ImplementedAs=defaultStatus] attribute DOMString defaultstatus;[MeasureAs=StyleMedia] readonly attribute StyleMedia styleMedia;[DeprecateAs=PrefixedRequestAnimationFrame] long webkitRequestAnimationFrame(FrameRequestCallback callback);[DeprecateAs=PrefixedCancelAnimationFrame, ImplementedAs=cancelAnimationFrame] void webkitCancelAnimationFrame(long id);// Event handler attributesattribute EventHandler onsearch;// https://w3c.github.io/webappsec-secure-contexts/#monkey-patching-global-objectreadonly attribute boolean isSecureContext;// TrustedTypes API: http://github.com/w3c/trusted-types[CallWith=ScriptState] readonly attribute TrustedTypePolicyFactory trustedTypes;// Anonymous iframe:// https://github.com/WICG/anonymous-iframe[RuntimeEnabled=AnonymousIframe] readonly attribute boolean credentialless;// Collection of fenced frame APIs// https://github.com/shivanigithub/fenced-frame/issues/14[RuntimeEnabled=FencedFrames] readonly attribute Fence? fence;
};Window includes GlobalEventHandlers;
Window includes WindowEventHandlers;
Window includes WindowOrWorkerGlobalScope;

2、window对象接口定义实现文件（blink）：

third_party\blink\renderer\core\frame\dom_window.h

third_party\blink\renderer\core\frame\dom_window.cc

third_party\blink\renderer\core\frame\local_dom_window.h

third_party\blink\renderer\core\frame\local_dom_window.cc

继承关系：

// Note: if you're thinking of returning something DOM-related by reference,
// please ping [e-mail] first. You probably don't want to do that.
class CORE_EXPORT LocalDOMWindow final : public DOMWindow,public ExecutionContext,public WindowOrWorkerGlobalScope,public WindowEventHandlers,public Supplementable<LocalDOMWindow>

在local_dom_window.h  LocalDOMWindow类中对应这前端window所有方法和对象实现

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_LOCAL_DOM_WINDOW_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_LOCAL_DOM_WINDOW_H_#include <memory>#include "base/task/single_thread_task_runner.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "services/metrics/public/cpp/ukm_source_id.h"
#include "services/network/public/mojom/content_security_policy.mojom-blink.h"
#include "third_party/blink/public/common/frame/delegated_capability_request_token.h"
#include "third_party/blink/public/common/frame/history_user_activation_state.h"
#include "third_party/blink/public/common/metrics/post_message_counter.h"
#include "third_party/blink/public/common/tokens/tokens.h"
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/events/event_target.h"
#include "third_party/blink/renderer/core/editing/spellcheck/spell_checker.h"
#include "third_party/blink/renderer/core/editing/suggestion/text_suggestion_controller.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/use_counter_impl.h"
#include "third_party/blink/renderer/core/frame/window_event_handlers.h"
#include "third_party/blink/renderer/core/frame/window_or_worker_global_scope.h"
#include "third_party/blink/renderer/core/html/closewatcher/close_watcher.h"
#include "third_party/blink/renderer/core/loader/frame_loader.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_map.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/prefinalizer.h"
#include "third_party/blink/renderer/platform/storage/blink_storage_key.h"
#include "third_party/blink/renderer/platform/supplementable.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/uuid.h"namespace blink {class BarProp;
class CSSStyleDeclaration;
class CustomElementRegistry;
class Document;
class DocumentInit;
class DOMSelection;
class DOMVisualViewport;
class Element;
class ExceptionState;
class External;
class Fence;
class FrameConsole;
class History;
class InputMethodController;
class LocalFrame;
class MediaQueryList;
class MessageEvent;
class Modulator;
class NavigationApi;
class Navigator;
class Screen;
class ScriptController;
class ScriptPromise;
class ScriptState;
class ScrollToOptions;
class SecurityOrigin;
class SerializedScriptValue;
class SourceLocation;
class StyleMedia;
class TrustedTypePolicyFactory;
class V8FrameRequestCallback;
class V8VoidFunction;
struct WebPictureInPictureWindowOptions;
class WindowAgent;namespace scheduler {
class TaskAttributionInfo;
}enum PageTransitionEventPersistence {kPageTransitionEventNotPersisted = 0,kPageTransitionEventPersisted = 1
};// Note: if you're thinking of returning something DOM-related by reference,
// please ping [e-mail] first. You probably don't want to do that.
class CORE_EXPORT LocalDOMWindow final : public DOMWindow,public ExecutionContext,public WindowOrWorkerGlobalScope,public WindowEventHandlers,public Supplementable<LocalDOMWindow> {USING_PRE_FINALIZER(LocalDOMWindow, Dispose);public:class CORE_EXPORT EventListenerObserver : public GarbageCollectedMixin {public:virtual void DidAddEventListener(LocalDOMWindow*, const AtomicString&) = 0;virtual void DidRemoveEventListener(LocalDOMWindow*,const AtomicString&) = 0;virtual void DidRemoveAllEventListeners(LocalDOMWindow*) = 0;};static LocalDOMWindow* From(const ScriptState*);LocalDOMWindow(LocalFrame&, WindowAgent*);~LocalDOMWindow() override;// Returns the token identifying the frame that this ExecutionContext was// associated with at the moment of its creation. This remains valid even// after the frame has been destroyed and the ExecutionContext is detached.// This is used as a stable and persistent identifier for attributing detached// context memory usage.const LocalFrameToken& GetLocalFrameToken() const { return token_; }ExecutionContextToken GetExecutionContextToken() const final {return token_;}LocalFrame* GetFrame() const {// UnsafeTo<> is safe here because DOMWindow's frame can only change to// nullptr, and it was constructed with a LocalFrame in the constructor.return UnsafeTo<LocalFrame>(DOMWindow::GetFrame());}ScriptController& GetScriptController() const { return *script_controller_; }void Initialize();void ClearForReuse() { document_ = nullptr; }void ResetWindowAgent(WindowAgent*);mojom::blink::V8CacheOptions GetV8CacheOptions() const override;// Bind Content Security Policy to this window. This will cause the// CSP to resolve the 'self' attribute and all policies will then be// applied to this document.void BindContentSecurityPolicy();void Trace(Visitor*) const override;// ExecutionContext overrides:bool IsWindow() const final { return true; }bool IsContextThread() const final;bool ShouldInstallV8Extensions() const final;ContentSecurityPolicy* GetContentSecurityPolicyForWorld(const DOMWrapperWorld* world) final;const KURL& Url() const final;const KURL& BaseURL() const final;KURL CompleteURL(const String&) const final;void DisableEval(const String& error_message) final;void SetWasmEvalErrorMessage(const String& error_message) final;String UserAgent() const final;UserAgentMetadata GetUserAgentMetadata() const final;HttpsState GetHttpsState() const final;ResourceFetcher* Fetcher() final;bool CanExecuteScripts(ReasonForCallingCanExecuteScripts) final;void ExceptionThrown(ErrorEvent*) final;void AddInspectorIssue(AuditsIssue) final;EventTarget* ErrorEventTarget() final { return this; }String OutgoingReferrer() const final;CoreProbeSink* GetProbeSink() final;const BrowserInterfaceBrokerProxy& GetBrowserInterfaceBroker() const final;FrameOrWorkerScheduler* GetScheduler() final;scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner(TaskType) final;TrustedTypePolicyFactory* GetTrustedTypes() const final {return GetTrustedTypesForWorld(*GetCurrentWorld());}ScriptWrappable* ToScriptWrappable() final { return this; }void ReportPermissionsPolicyViolation(mojom::blink::PermissionsPolicyFeature,mojom::blink::PolicyDisposition,const absl::optional<String>& reporting_endpoint,const String& message = g_empty_string) const final;void ReportDocumentPolicyViolation(mojom::blink::DocumentPolicyFeature,mojom::blink::PolicyDisposition,const String& message = g_empty_string,// If source_file is set to empty string,// current JS file would be used as source_file instead.const String& source_file = g_empty_string) const final;void SetIsInBackForwardCache(bool) final;bool HasStorageAccess() const final;void AddConsoleMessageImpl(ConsoleMessage*, bool discard_duplicates) final;scoped_refptr<base::SingleThreadTaskRunner>GetAgentGroupSchedulerCompositorTaskRunner() final;// UseCounter orverrides:void CountUse(mojom::WebFeature feature) final;// Count |feature| only when this window is associated with a cross-origin// iframe.void CountUseOnlyInCrossOriginIframe(mojom::blink::WebFeature feature);// Count |feature| only when this window is associated with a same-origin// iframe with the outermost main frame.void CountUseOnlyInSameOriginIframe(mojom::blink::WebFeature feature);// Count |feature| only when this window is associated with a cross-site// iframe. A "site" is a scheme and registrable domain.void CountUseOnlyInCrossSiteIframe(mojom::blink::WebFeature feature) override;// Count permissions policy feature usage through use counter.void CountPermissionsPolicyUsage(mojom::blink::PermissionsPolicyFeature feature,UseCounterImpl::PermissionsPolicyUsageType type);// Checks if navigation to Javascript URL is allowed. This check should run// before any action is taken (e.g. creating new window) for all// same-origin navigations.String CheckAndGetJavascriptUrl(const DOMWrapperWorld* world,const KURL& url,Element* element,network::mojom::CSPDisposition csp_disposition =network::mojom::CSPDisposition::CHECK);Document* InstallNewDocument(const DocumentInit&);// EventTarget overrides:ExecutionContext* GetExecutionContext() const override;const LocalDOMWindow* ToLocalDOMWindow() const override;LocalDOMWindow* ToLocalDOMWindow() override;// Same-origin DOM Level 0Screen* screen();History* history();BarProp* locationbar();BarProp* menubar();BarProp* personalbar();BarProp* scrollbars();BarProp* statusbar();BarProp* toolbar();Navigator* navigator();Navigator* clientInformation() { return navigator(); }bool offscreenBuffering() const;int outerHeight() const;int outerWidth() const;int innerHeight() const;int innerWidth() const;int screenX() const;int screenY() const;int screenLeft() const { return screenX(); }int screenTop() const { return screenY(); }double scrollX() const;double scrollY() const;double pageXOffset() const { return scrollX(); }double pageYOffset() const { return scrollY(); }DOMVisualViewport* visualViewport();const AtomicString& name() const;void setName(const AtomicString&);String status() const;void setStatus(const String&);String defaultStatus() const;void setDefaultStatus(const String&);String origin() const;// DOM Level 2 AbstractView InterfaceDocument* document() const;// CSSOM View ModuleStyleMedia* styleMedia();// WebKit extensionsdouble devicePixelRatio() const;// This is the interface orientation in degrees. Some examples are://  0 is straight up; -90 is when the device is rotated 90 clockwise;//  90 is when rotated counter clockwise.int orientation() const;DOMSelection* getSelection();void print(ScriptState*);void stop();void alert(ScriptState*, const String& message = String());bool confirm(ScriptState*, const String& message);String prompt(ScriptState*,const String& message,const String& default_value);bool find(const String&,bool case_sensitive,bool backwards,bool wrap,bool whole_word,bool search_in_frames,bool show_dialog) const;// FIXME: ScrollBehaviorSmooth is currently unsupported in VisualViewport.// crbug.com/434497void scrollBy(double x, double y) const;void scrollBy(const ScrollToOptions*) const;void scrollTo(double x, double y) const;void scrollTo(const ScrollToOptions*) const;void scroll(double x, double y) const { scrollTo(x, y); }void scroll(const ScrollToOptions* scroll_to_options) const {scrollTo(scroll_to_options);}void moveBy(int x, int y) const;void moveTo(int x, int y) const;void resizeBy(int x, int y, ExceptionState&) const;void resizeTo(int width, int height, ExceptionState&) const;MediaQueryList* matchMedia(const String&);// DOM Level 2 Style InterfaceCSSStyleDeclaration* getComputedStyle(Element*,const String& pseudo_elt = String()) const;// Acessibility Object ModelScriptPromise getComputedAccessibleNode(ScriptState*, Element*);// WebKit animation extensionsint requestAnimationFrame(V8FrameRequestCallback*);int webkitRequestAnimationFrame(V8FrameRequestCallback*);void cancelAnimationFrame(int id);// https://html.spec.whatwg.org/C/#windoworworkerglobalscope-mixinvoid queueMicrotask(V8VoidFunction*);// https://html.spec.whatwg.org/C/#dom-originagentclusterbool originAgentCluster() const;// Custom elementsCustomElementRegistry* customElements(ScriptState*) const;CustomElementRegistry* customElements() const;CustomElementRegistry* MaybeCustomElements() const;void SetModulator(Modulator*);// Obsolete APIsvoid captureEvents() {}void releaseEvents() {}External* external();bool isSecureContext() const;DEFINE_ATTRIBUTE_EVENT_LISTENER(search, kSearch)DEFINE_ATTRIBUTE_EVENT_LISTENER(orientationchange, kOrientationchange)DEFINE_ATTRIBUTE_EVENT_LISTENER(pagereveal, kPagereveal)void RegisterEventListenerObserver(EventListenerObserver*);void FrameDestroyed();void Reset();Element* frameElement() const;DOMWindow* open(v8::Isolate*,const String& url_string,const AtomicString& target,const String& features,ExceptionState&);DOMWindow* openPictureInPictureWindow(v8::Isolate*,const WebPictureInPictureWindowOptions&,ExceptionState&);FrameConsole* GetFrameConsole() const;void PrintErrorMessage(const String&) const;void DispatchPostMessage(MessageEvent* event,scoped_refptr<const SecurityOrigin> intended_target_origin,std::unique_ptr<SourceLocation> location,const base::UnguessableToken& source_agent_cluster_id);void DispatchMessageEventWithOriginCheck(const SecurityOrigin* intended_target_origin,MessageEvent*,std::unique_ptr<SourceLocation>,const base::UnguessableToken& source_agent_cluster_id);// Events// EventTarget APIvoid RemoveAllEventListeners() override;using EventTarget::DispatchEvent;DispatchEventResult DispatchEvent(Event&, EventTarget*);void FinishedLoading(FrameLoader::NavigationFinishState);// Dispatch the (deprecated) orientationchange event to this DOMWindow and// recurse on its child frames.void SendOrientationChangeEvent();void EnqueueWindowEvent(Event&, TaskType);void EnqueueDocumentEvent(Event&, TaskType);void EnqueueNonPersistedPageshowEvent();void EnqueueHashchangeEvent(const String& old_url, const String& new_url);void DispatchPopstateEvent(scoped_refptr<SerializedScriptValue>,scheduler::TaskAttributionInfo* parent_task);void DispatchWindowLoadEvent();void DocumentWasClosed();void AcceptLanguagesChanged();// https://dom.spec.whatwg.org/#dom-window-eventScriptValue event(ScriptState*);Event* CurrentEvent() const;void SetCurrentEvent(Event*);TrustedTypePolicyFactory* trustedTypes(ScriptState*) const;TrustedTypePolicyFactory* GetTrustedTypesForWorld(const DOMWrapperWorld&) const;// Returns true if this window is cross-site to the outermost main frame.// Defaults to false in a detached window. Note: This uses an outdated// definition of "site" which only includes the registrable domain and not the// scheme. IsCrossSiteSubframeIncludingScheme() uses HTML's definition of// "site" as a registrable domain and scheme.bool IsCrossSiteSubframe() const;bool IsCrossSiteSubframeIncludingScheme() const;void DispatchPersistedPageshowEvent(base::TimeTicks navigation_start);void DispatchPagehideEvent(PageTransitionEventPersistence persistence);InputMethodController& GetInputMethodController() const {return *input_method_controller_;}TextSuggestionController& GetTextSuggestionController() const {return *text_suggestion_controller_;}SpellChecker& GetSpellChecker() const { return *spell_checker_; }void ClearIsolatedWorldCSPForTesting(int32_t world_id);bool CrossOriginIsolatedCapability() const override;bool IsIsolatedContext() const override;// These delegate to the document_.ukm::UkmRecorder* UkmRecorder() override;ukm::SourceId UkmSourceID() const override;const BlinkStorageKey& GetStorageKey() const { return storage_key_; }void SetStorageKey(const BlinkStorageKey& storage_key);// This storage key must only be used when binding session storage.//// TODO(crbug.com/1407150): Remove this when deprecation trial is complete.const BlinkStorageKey& GetSessionStorageKey() const {return session_storage_key_;}void SetSessionStorageKey(const BlinkStorageKey& session_storage_key);void DidReceiveUserActivation();// Returns the state of the |payment_request_token_| in this document.bool IsPaymentRequestTokenActive() const;// Consumes the |payment_request_token_| if it was active in this document.bool ConsumePaymentRequestToken();// Returns the state of the |fullscreen_request_token_| in this document.bool IsFullscreenRequestTokenActive() const;// Consumes the |fullscreen_request_token_| if it was active in this document.bool ConsumeFullscreenRequestToken();// Returns the state of the |display_capture_request_token_| in this document.bool IsDisplayCaptureRequestTokenActive() const;// Consumes the |display_capture_request_token_| if it was active in this// document.bool ConsumeDisplayCaptureRequestToken();// Called when a network request buffered an additional `num_bytes` while this// frame is in back-forward cache.void DidBufferLoadWhileInBackForwardCache(bool update_process_wide_count,size_t num_bytes);// Whether the window is credentialless or not.bool credentialless() const;bool IsInFencedFrame() const override;Fence* fence();CloseWatcher::WatcherStack* closewatcher_stack() {return closewatcher_stack_.Get();}void GenerateNewNavigationId();String GetNavigationId() const { return navigation_id_; }NavigationApi* navigation();// Is this a Document Picture in Picture window?bool IsPictureInPictureWindow() const;void set_is_picture_in_picture_window_for_testing(bool is_picture_in_picture) {is_picture_in_picture_window_ = is_picture_in_picture;}// Sets the HasStorageAccess member. Note that it can only be granted for a// given window, it cannot be taken away.void SetHasStorageAccess();protected:// EventTarget overrides.void AddedEventListener(const AtomicString& event_type,RegisteredEventListener&) override;void RemovedEventListener(const AtomicString& event_type,const RegisteredEventListener&) override;// Protected DOMWindow overrides.void SchedulePostMessage(PostedMessage*) override;private:class NetworkStateObserver;// Intentionally private to prevent redundant checks.bool IsLocalDOMWindow() const override { return true; }bool HasInsecureContextInAncestors() const override;Document& GetDocumentForWindowEventHandler() const override {return *document();}void Dispose();void DispatchLoadEvent();void SetIsPictureInPictureWindow();// Return the viewport size including scrollbars.gfx::Size GetViewportSize() const;Member<ScriptController> script_controller_;Member<Document> document_;Member<DOMVisualViewport> visualViewport_;bool should_print_when_finished_loading_;mutable Member<Screen> screen_;mutable Member<History> history_;mutable Member<BarProp> locationbar_;mutable Member<BarProp> menubar_;mutable Member<BarProp> personalbar_;mutable Member<BarProp> scrollbars_;mutable Member<BarProp> statusbar_;mutable Member<BarProp> toolbar_;mutable Member<Navigator> navigator_;mutable Member<StyleMedia> media_;mutable Member<CustomElementRegistry> custom_elements_;Member<External> external_;Member<NavigationApi> navigation_;String status_;String default_status_;HeapHashSet<WeakMember<EventListenerObserver>> event_listener_observers_;// Trackers for delegated payment, fullscreen, and display-capture requests.// These are related to |Frame::user_activation_state_|.DelegatedCapabilityRequestToken payment_request_token_;DelegatedCapabilityRequestToken fullscreen_request_token_;DelegatedCapabilityRequestToken display_capture_request_token_;// https://dom.spec.whatwg.org/#window-current-event// We represent the "undefined" value as nullptr.Member<Event> current_event_;// Store TrustedTypesPolicyFactory, per DOMWrapperWorld.mutable HeapHashMap<scoped_refptr<const DOMWrapperWorld>,Member<TrustedTypePolicyFactory>>trusted_types_map_;// A dummy scheduler to return when the window is detached.// All operations on it result in no-op, but due to this it's safe to// use the returned value of GetScheduler() without additional checks.// A task posted to a task runner obtained from one of its task runners// will be forwarded to the default task runner.// TODO(altimin): We should be able to remove it after we complete// frame:document lifetime refactoring.std::unique_ptr<FrameOrWorkerScheduler> detached_scheduler_;Member<InputMethodController> input_method_controller_;Member<SpellChecker> spell_checker_;Member<TextSuggestionController> text_suggestion_controller_;// Map from isolated world IDs to their ContentSecurityPolicy instances.Member<HeapHashMap<int, Member<ContentSecurityPolicy>>>isolated_world_csp_map_;// Tracks which features have already been potentially violated in this// document. This helps to count them only once per page load.// We don't use std::bitset to avoid to include// permissions_policy.mojom-blink.h.mutable Vector<bool> potentially_violated_features_;// Token identifying the LocalFrame that this window was associated with at// creation. Remains valid even after the frame is destroyed and the context// is detached.const LocalFrameToken token_;// Tracks which document policy violation reports have already been sent in// this document, to avoid reporting duplicates. The value stored comes// from |DocumentPolicyViolationReport::MatchId()|.mutable HashSet<unsigned> document_policy_violation_reports_sent_;// Tracks metrics related to postMessage usage.// TODO(crbug.com/1159586): Remove when no longer needed.PostMessageCounter post_message_counter_;// The storage key for this LocalDomWindow.BlinkStorageKey storage_key_;// The storage key here is the one to use when binding session storage. This// may differ from `storage_key_` as a deprecation trial can prevent the// partitioning of session storage.//// TODO(crbug.com/1407150): Remove this when deprecation trial is complete.BlinkStorageKey session_storage_key_;// Fire "online" and "offline" events.Member<NetworkStateObserver> network_state_observer_;// The total bytes buffered by all network requests in this frame while frozen// due to back-forward cache. This number gets reset when the frame gets out// of the back-forward cache.size_t total_bytes_buffered_while_in_back_forward_cache_ = 0;// Collection of fenced frame APIs.// https://github.com/shivanigithub/fenced-frame/issues/14Member<Fence> fence_;Member<CloseWatcher::WatcherStack> closewatcher_stack_;// If set, this window is a Document Picture in Picture window.// https://wicg.github.io/document-picture-in-picture/bool is_picture_in_picture_window_ = false;// The navigation id of a document is to identify navigation of special types// like bfcache navigation or soft navigation. It changes when navigations// of these types occur.String navigation_id_;// Records whether this window has obtained storage access. It cannot be// revoked once set to true.bool has_storage_access_ = false;// Tracks whether this window has shown a payment request without a user// activation. It cannot be revoked once set to true.// TODO(crbug.com/1439565): Move this bit to a new payments-specific// per-LocalDOMWindow class in the payments module.bool had_activationless_payment_request_ = false;
};template <>
struct DowncastTraits<LocalDOMWindow> {static bool AllowFrom(const ExecutionContext& context) {return context.IsWindow();}static bool AllowFrom(const DOMWindow& window) {return window.IsLocalDOMWindow();}
};inline String LocalDOMWindow::status() const {return status_;
}inline String LocalDOMWindow::defaultStatus() const {DCHECK(RuntimeEnabledFeatures::WindowDefaultStatusEnabled());return default_status_;
}}  // namespace blink#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_LOCAL_DOM_WINDOW_H_

3、window对象接口定义实现文件（v8）：

out\Debug\gen\third_party\blink\renderer\bindings\modules\v8\v8_window.cc

out\Debug\gen\third_party\blink\renderer\bindings\modules\v8\v8_window.h

部分定义：

void SelfAttributeSetCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {RUNTIME_CALL_TIMER_SCOPE_DISABLED_BY_DEFAULT(info.GetIsolate(), "Blink_DOMWindow_self_Setter");
BLINK_BINDINGS_TRACE_EVENT("Window.self.set");v8::Isolate* isolate = info.GetIsolate();
const char* const property_name = "self";
if (UNLIKELY(info.Length() < 1)) {const ExceptionContextType exception_context_type = ExceptionContextType::kAttributeSet;
const char* const class_like_name = "Window";
ExceptionState exception_state(isolate, exception_context_type, class_like_name, property_name);
exception_state.ThrowTypeError(ExceptionMessages::NotEnoughArguments(1, info.Length()));
return;
}// [Replaceable]
bool did_create;
v8::Local<v8::Object> v8_receiver = info.This();
v8::Local<v8::Context> current_context = isolate->GetCurrentContext();
v8::Local<v8::Value> v8_property_value = info[0];
if (!v8_receiver->CreateDataProperty(current_context, V8AtomicString(isolate, property_name), v8_property_value).To(&did_create)) {return;
}
}void DocumentAttributeGetCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {RUNTIME_CALL_TIMER_SCOPE_DISABLED_BY_DEFAULT(info.GetIsolate(), "Blink_DOMWindow_document_Getter");
BLINK_BINDINGS_TRACE_EVENT("Window.document.get");v8::Local<v8::Object> v8_receiver = info.This();
LocalDOMWindow* blink_receiver = &UnsafeTo<LocalDOMWindow>(*V8Window::ToWrappableUnsafe(v8_receiver));
auto&& return_value = blink_receiver->document();
bindings::V8SetReturnValue(info, return_value, blink_receiver);
}

4、控制台输入window看下和c++代码对比效果：