798 lines
28 KiB
C++
798 lines
28 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_tabs_TabParent_h
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#define mozilla_tabs_TabParent_h
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#include "js/TypeDecls.h"
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#include "mozilla/ContentCache.h"
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#include "mozilla/dom/AudioChannelBinding.h"
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#include "mozilla/dom/ipc/IdType.h"
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#include "mozilla/dom/PBrowserParent.h"
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#include "mozilla/dom/PContent.h"
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#include "mozilla/dom/PFilePickerParent.h"
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#include "mozilla/dom/TabContext.h"
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#include "mozilla/EventForwards.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/layers/CompositorBridgeParent.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/Move.h"
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#include "nsCOMPtr.h"
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#include "nsIAuthPromptProvider.h"
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#include "nsIBrowserDOMWindow.h"
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#include "nsIDOMEventListener.h"
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#include "nsIKeyEventInPluginCallback.h"
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#include "nsISecureBrowserUI.h"
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#include "nsITabParent.h"
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#include "nsIWebBrowserPersistable.h"
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#include "nsIXULBrowserWindow.h"
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#include "nsRefreshDriver.h"
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#include "nsWeakReference.h"
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#include "Units.h"
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#include "nsIWidget.h"
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#include "nsIPartialSHistory.h"
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class nsFrameLoader;
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class nsIFrameLoader;
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class nsIContent;
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class nsIPrincipal;
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class nsIURI;
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class nsILoadContext;
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class nsIDocShell;
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namespace mozilla {
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namespace a11y {
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class DocAccessibleParent;
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}
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namespace jsipc {
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class CpowHolder;
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} // namespace jsipc
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namespace layers {
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struct TextureFactoryIdentifier;
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} // namespace layers
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namespace layout {
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class RenderFrameParent;
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} // namespace layout
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namespace widget {
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struct IMENotification;
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} // namespace widget
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namespace gfx {
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class SourceSurface;
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class DataSourceSurface;
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} // namespace gfx
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namespace dom {
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class ClonedMessageData;
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class nsIContentParent;
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class Element;
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class DataTransfer;
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namespace ipc {
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class StructuredCloneData;
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} // ipc namespace
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class TabParent final : public PBrowserParent
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, public nsIDOMEventListener
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, public nsITabParent
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, public nsIAuthPromptProvider
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, public nsISecureBrowserUI
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, public nsIKeyEventInPluginCallback
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, public nsSupportsWeakReference
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, public TabContext
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, public nsAPostRefreshObserver
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, public nsIWebBrowserPersistable
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{
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typedef mozilla::dom::ClonedMessageData ClonedMessageData;
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virtual ~TabParent();
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public:
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// Helper class for ContentParent::RecvCreateWindow.
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struct AutoUseNewTab;
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// nsITabParent
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NS_DECL_NSITABPARENT
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// nsIDOMEventListener interfaces
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NS_DECL_NSIDOMEVENTLISTENER
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TabParent(nsIContentParent* aManager,
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const TabId& aTabId,
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const TabContext& aContext,
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uint32_t aChromeFlags);
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Element* GetOwnerElement() const { return mFrameElement; }
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already_AddRefed<nsPIDOMWindowOuter> GetParentWindowOuter();
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void SetOwnerElement(Element* aElement);
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void CacheFrameLoader(nsFrameLoader* aFrameLoader);
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/**
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* Get the mozapptype attribute from this TabParent's owner DOM element.
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*/
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void GetAppType(nsAString& aOut);
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/**
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* Returns true iff this TabParent's nsIFrameLoader is visible.
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*
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* The frameloader's visibility can be independent of e.g. its docshell's
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* visibility.
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*/
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bool IsVisible() const;
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nsIBrowserDOMWindow *GetBrowserDOMWindow() const { return mBrowserDOMWindow; }
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void SetBrowserDOMWindow(nsIBrowserDOMWindow* aBrowserDOMWindow)
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{
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mBrowserDOMWindow = aBrowserDOMWindow;
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}
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void SetHasContentOpener(bool aHasContentOpener);
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void SwapFrameScriptsFrom(nsTArray<FrameScriptInfo>& aFrameScripts)
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{
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aFrameScripts.SwapElements(mDelayedFrameScripts);
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}
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already_AddRefed<nsILoadContext> GetLoadContext();
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already_AddRefed<nsIWidget> GetTopLevelWidget();
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nsIXULBrowserWindow* GetXULBrowserWindow();
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void Destroy();
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void RemoveWindowListeners();
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void AddWindowListeners();
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void DidRefresh() override;
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virtual bool RecvMoveFocus(const bool& aForward,
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const bool& aForDocumentNavigation) override;
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virtual bool RecvSizeShellTo(const uint32_t& aFlags,
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const int32_t& aWidth,
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const int32_t& aHeight,
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const int32_t& aShellItemWidth,
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const int32_t& aShellItemHeight) override;
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virtual bool RecvDropLinks(nsTArray<nsString>&& aLinks) override;
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virtual bool RecvEvent(const RemoteDOMEvent& aEvent) override;
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virtual bool RecvReplyKeyEvent(const WidgetKeyboardEvent& aEvent) override;
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virtual bool
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RecvDispatchAfterKeyboardEvent(const WidgetKeyboardEvent& aEvent) override;
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virtual bool
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RecvAccessKeyNotHandled(const WidgetKeyboardEvent& aEvent) override;
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virtual bool RecvBrowserFrameOpenWindow(PBrowserParent* aOpener,
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PRenderFrameParent* aRenderFrame,
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const nsString& aURL,
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const nsString& aName,
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const nsString& aFeatures,
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bool* aOutWindowOpened,
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TextureFactoryIdentifier* aTextureFactoryIdentifier,
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uint64_t* aLayersId) override;
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virtual bool
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RecvSyncMessage(const nsString& aMessage,
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const ClonedMessageData& aData,
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InfallibleTArray<CpowEntry>&& aCpows,
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const IPC::Principal& aPrincipal,
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nsTArray<ipc::StructuredCloneData>* aRetVal) override;
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virtual bool
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RecvRpcMessage(const nsString& aMessage,
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const ClonedMessageData& aData,
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InfallibleTArray<CpowEntry>&& aCpows,
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const IPC::Principal& aPrincipal,
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nsTArray<ipc::StructuredCloneData>* aRetVal) override;
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virtual bool RecvAsyncMessage(const nsString& aMessage,
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InfallibleTArray<CpowEntry>&& aCpows,
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const IPC::Principal& aPrincipal,
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const ClonedMessageData& aData) override;
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virtual bool
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RecvNotifyIMEFocus(const ContentCache& aContentCache,
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const widget::IMENotification& aEventMessage,
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nsIMEUpdatePreference* aPreference) override;
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virtual bool
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RecvNotifyIMETextChange(const ContentCache& aContentCache,
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const widget::IMENotification& aEventMessage) override;
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virtual bool
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RecvNotifyIMECompositionUpdate(const ContentCache& aContentCache,
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const widget::IMENotification& aEventMessage) override;
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virtual bool
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RecvNotifyIMESelection(const ContentCache& aContentCache,
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const widget::IMENotification& aEventMessage) override;
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virtual bool
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RecvUpdateContentCache(const ContentCache& aContentCache) override;
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virtual bool
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RecvNotifyIMEMouseButtonEvent(const widget::IMENotification& aEventMessage,
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bool* aConsumedByIME) override;
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virtual bool
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RecvNotifyIMEPositionChange(const ContentCache& aContentCache,
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const widget::IMENotification& aEventMessage) override;
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virtual bool
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RecvOnEventNeedingAckHandled(const EventMessage& aMessage) override;
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virtual bool
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RecvRequestIMEToCommitComposition(const bool& aCancel,
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bool* aIsCommitted,
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nsString* aCommittedString) override;
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virtual bool
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RecvStartPluginIME(const WidgetKeyboardEvent& aKeyboardEvent,
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const int32_t& aPanelX,
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const int32_t& aPanelY,
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nsString* aCommitted) override;
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virtual bool RecvSetPluginFocused(const bool& aFocused) override;
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virtual bool RecvSetCandidateWindowForPlugin(
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const widget::CandidateWindowPosition& aPosition) override;
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virtual bool
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RecvDefaultProcOfPluginEvent(const WidgetPluginEvent& aEvent) override;
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virtual bool RecvGetInputContext(int32_t* aIMEEnabled,
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int32_t* aIMEOpen) override;
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virtual bool RecvSetInputContext(const int32_t& aIMEEnabled,
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const int32_t& aIMEOpen,
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const nsString& aType,
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const nsString& aInputmode,
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const nsString& aActionHint,
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const int32_t& aCause,
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const int32_t& aFocusChange) override;
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// See nsIKeyEventInPluginCallback
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virtual void HandledWindowedPluginKeyEvent(
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const NativeEventData& aKeyEventData,
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bool aIsConsumed) override;
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virtual bool RecvOnWindowedPluginKeyEvent(
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const NativeEventData& aKeyEventData) override;
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virtual bool RecvRequestFocus(const bool& aCanRaise) override;
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virtual bool RecvLookUpDictionary(
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const nsString& aText,
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nsTArray<mozilla::FontRange>&& aFontRangeArray,
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const bool& aIsVertical,
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const LayoutDeviceIntPoint& aPoint) override;
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virtual bool
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RecvEnableDisableCommands(const nsString& aAction,
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nsTArray<nsCString>&& aEnabledCommands,
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nsTArray<nsCString>&& aDisabledCommands) override;
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virtual bool
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RecvSetCursor(const uint32_t& aValue, const bool& aForce) override;
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virtual bool RecvSetCustomCursor(const nsCString& aUri,
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const uint32_t& aWidth,
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const uint32_t& aHeight,
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const uint32_t& aStride,
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const uint8_t& aFormat,
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const uint32_t& aHotspotX,
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const uint32_t& aHotspotY,
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const bool& aForce) override;
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virtual bool RecvSetStatus(const uint32_t& aType,
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const nsString& aStatus) override;
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virtual bool RecvIsParentWindowMainWidgetVisible(bool* aIsVisible) override;
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virtual bool RecvShowTooltip(const uint32_t& aX,
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const uint32_t& aY,
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const nsString& aTooltip,
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const nsString& aDirection) override;
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virtual bool RecvHideTooltip() override;
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virtual bool RecvGetDPI(float* aValue) override;
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virtual bool RecvGetDefaultScale(double* aValue) override;
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virtual bool RecvGetWidgetRounding(int32_t* aValue) override;
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virtual bool RecvGetMaxTouchPoints(uint32_t* aTouchPoints) override;
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virtual bool RecvGetWidgetNativeData(WindowsHandle* aValue) override;
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virtual bool RecvSetNativeChildOfShareableWindow(const uintptr_t& childWindow) override;
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virtual bool RecvDispatchFocusToTopLevelWindow() override;
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virtual bool RecvRespondStartSwipeEvent(const uint64_t& aInputBlockId,
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const bool& aStartSwipe) override;
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virtual bool
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RecvDispatchWheelEvent(const mozilla::WidgetWheelEvent& aEvent) override;
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virtual bool
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RecvDispatchMouseEvent(const mozilla::WidgetMouseEvent& aEvent) override;
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virtual bool
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RecvDispatchKeyboardEvent(const mozilla::WidgetKeyboardEvent& aEvent) override;
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virtual PColorPickerParent*
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AllocPColorPickerParent(const nsString& aTitle,
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const nsString& aInitialColor) override;
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virtual bool
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DeallocPColorPickerParent(PColorPickerParent* aColorPicker) override;
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virtual PDocAccessibleParent*
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AllocPDocAccessibleParent(PDocAccessibleParent*, const uint64_t&,
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const uint32_t&, const IAccessibleHolder&) override;
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virtual bool DeallocPDocAccessibleParent(PDocAccessibleParent*) override;
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virtual bool
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RecvPDocAccessibleConstructor(PDocAccessibleParent* aDoc,
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PDocAccessibleParent* aParentDoc,
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const uint64_t& aParentID,
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const uint32_t& aMsaaID,
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const IAccessibleHolder& aDocCOMProxy) override;
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/**
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* Return the top level doc accessible parent for this tab.
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*/
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a11y::DocAccessibleParent* GetTopLevelDocAccessible() const;
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void LoadURL(nsIURI* aURI);
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// XXX/cjones: it's not clear what we gain by hiding these
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// message-sending functions under a layer of indirection and
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// eating the return values
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void Show(const ScreenIntSize& aSize, bool aParentIsActive);
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void UpdateDimensions(const nsIntRect& aRect, const ScreenIntSize& aSize);
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void SizeModeChanged(const nsSizeMode& aSizeMode);
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void UIResolutionChanged();
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void ThemeChanged();
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void HandleAccessKey(const WidgetKeyboardEvent& aEvent,
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nsTArray<uint32_t>& aCharCodes,
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const int32_t& aModifierMask);
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void Activate();
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void Deactivate();
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bool MapEventCoordinatesForChildProcess(mozilla::WidgetEvent* aEvent);
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void MapEventCoordinatesForChildProcess(const LayoutDeviceIntPoint& aOffset,
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mozilla::WidgetEvent* aEvent);
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LayoutDeviceToCSSScale GetLayoutDeviceToCSSScale();
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virtual bool
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RecvRequestNativeKeyBindings(const mozilla::WidgetKeyboardEvent& aEvent,
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MaybeNativeKeyBinding* aBindings) override;
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virtual bool
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RecvSynthesizeNativeKeyEvent(const int32_t& aNativeKeyboardLayout,
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const int32_t& aNativeKeyCode,
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const uint32_t& aModifierFlags,
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const nsString& aCharacters,
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const nsString& aUnmodifiedCharacters,
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const uint64_t& aObserverId) override;
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virtual bool
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RecvSynthesizeNativeMouseEvent(const LayoutDeviceIntPoint& aPoint,
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const uint32_t& aNativeMessage,
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const uint32_t& aModifierFlags,
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const uint64_t& aObserverId) override;
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virtual bool
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RecvSynthesizeNativeMouseMove(const LayoutDeviceIntPoint& aPoint,
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const uint64_t& aObserverId) override;
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virtual bool
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RecvSynthesizeNativeMouseScrollEvent(const LayoutDeviceIntPoint& aPoint,
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const uint32_t& aNativeMessage,
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const double& aDeltaX,
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const double& aDeltaY,
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const double& aDeltaZ,
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const uint32_t& aModifierFlags,
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const uint32_t& aAdditionalFlags,
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const uint64_t& aObserverId) override;
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virtual bool
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RecvSynthesizeNativeTouchPoint(const uint32_t& aPointerId,
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const TouchPointerState& aPointerState,
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const LayoutDeviceIntPoint& aPoint,
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const double& aPointerPressure,
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const uint32_t& aPointerOrientation,
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const uint64_t& aObserverId) override;
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virtual bool
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RecvSynthesizeNativeTouchTap(const LayoutDeviceIntPoint& aPoint,
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const bool& aLongTap,
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const uint64_t& aObserverId) override;
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virtual bool
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RecvClearNativeTouchSequence(const uint64_t& aObserverId) override;
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void SendMouseEvent(const nsAString& aType, float aX, float aY,
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int32_t aButton, int32_t aClickCount,
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int32_t aModifiers, bool aIgnoreRootScrollFrame);
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void SendKeyEvent(const nsAString& aType, int32_t aKeyCode,
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int32_t aCharCode, int32_t aModifiers,
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bool aPreventDefault);
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bool SendRealMouseEvent(mozilla::WidgetMouseEvent& event);
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bool SendRealDragEvent(mozilla::WidgetDragEvent& aEvent,
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uint32_t aDragAction,
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uint32_t aDropEffect);
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bool SendMouseWheelEvent(mozilla::WidgetWheelEvent& event);
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bool SendRealKeyEvent(mozilla::WidgetKeyboardEvent& event);
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bool SendRealTouchEvent(WidgetTouchEvent& event);
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bool SendHandleTap(TapType aType,
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const LayoutDevicePoint& aPoint,
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Modifiers aModifiers,
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const ScrollableLayerGuid& aGuid,
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uint64_t aInputBlockId);
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virtual PFilePickerParent*
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AllocPFilePickerParent(const nsString& aTitle,
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const int16_t& aMode) override;
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virtual bool DeallocPFilePickerParent(PFilePickerParent* actor) override;
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virtual PIndexedDBPermissionRequestParent*
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AllocPIndexedDBPermissionRequestParent(const Principal& aPrincipal) override;
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virtual bool
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RecvPIndexedDBPermissionRequestConstructor(
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PIndexedDBPermissionRequestParent* aActor,
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const Principal& aPrincipal)
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override;
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virtual bool
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DeallocPIndexedDBPermissionRequestParent(
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PIndexedDBPermissionRequestParent* aActor)
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override;
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bool GetGlobalJSObject(JSContext* cx, JSObject** globalp);
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NS_DECL_ISUPPORTS
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NS_DECL_NSIAUTHPROMPTPROVIDER
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NS_DECL_NSISECUREBROWSERUI
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NS_DECL_NSIWEBBROWSERPERSISTABLE
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bool HandleQueryContentEvent(mozilla::WidgetQueryContentEvent& aEvent);
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bool SendCompositionEvent(mozilla::WidgetCompositionEvent& event);
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bool SendSelectionEvent(mozilla::WidgetSelectionEvent& event);
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bool SendPasteTransferable(const IPCDataTransfer& aDataTransfer,
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const bool& aIsPrivateData,
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const IPC::Principal& aRequestingPrincipal);
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static TabParent* GetFrom(nsFrameLoader* aFrameLoader);
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static TabParent* GetFrom(nsIFrameLoader* aFrameLoader);
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static TabParent* GetFrom(nsITabParent* aTabParent);
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static TabParent* GetFrom(PBrowserParent* aTabParent);
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static TabParent* GetFrom(nsIContent* aContent);
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static TabId GetTabIdFrom(nsIDocShell* docshell);
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nsIContentParent* Manager() const { return mManager; }
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/**
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* Let managees query if Destroy() is already called so they don't send out
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* messages when the PBrowser actor is being destroyed.
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*/
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bool IsDestroyed() const { return mIsDestroyed; }
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already_AddRefed<nsIWidget> GetWidget() const;
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const TabId GetTabId() const
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{
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return mTabId;
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}
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LayoutDeviceIntPoint GetChildProcessOffset();
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LayoutDevicePoint AdjustTapToChildWidget(const LayoutDevicePoint& aPoint);
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/**
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* Native widget remoting protocol for use with windowed plugins with e10s.
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*/
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virtual PPluginWidgetParent* AllocPPluginWidgetParent() override;
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virtual bool
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DeallocPPluginWidgetParent(PPluginWidgetParent* aActor) override;
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void SetInitedByParent() { mInitedByParent = true; }
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bool IsInitedByParent() const { return mInitedByParent; }
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static TabParent* GetNextTabParent();
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bool SendLoadRemoteScript(const nsString& aURL,
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const bool& aRunInGlobalScope);
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void LayerTreeUpdate(uint64_t aEpoch, bool aActive);
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virtual bool
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RecvInvokeDragSession(nsTArray<IPCDataTransfer>&& aTransfers,
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const uint32_t& aAction,
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const OptionalShmem& aVisualDnDData,
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const uint32_t& aStride, const uint8_t& aFormat,
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const LayoutDeviceIntRect& aDragRect) override;
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void AddInitialDnDDataTo(DataTransfer* aDataTransfer);
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bool TakeDragVisualization(RefPtr<mozilla::gfx::SourceSurface>& aSurface,
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LayoutDeviceIntRect* aDragRect);
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layout::RenderFrameParent* GetRenderFrame();
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void AudioChannelChangeNotification(nsPIDOMWindowOuter* aWindow,
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AudioChannel aAudioChannel,
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float aVolume,
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bool aMuted);
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bool SetRenderFrame(PRenderFrameParent* aRFParent);
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bool GetRenderFrameInfo(TextureFactoryIdentifier* aTextureFactoryIdentifier,
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uint64_t* aLayersId);
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bool RecvEnsureLayersConnected() override;
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protected:
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bool ReceiveMessage(const nsString& aMessage,
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bool aSync,
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ipc::StructuredCloneData* aData,
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mozilla::jsipc::CpowHolder* aCpows,
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nsIPrincipal* aPrincipal,
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nsTArray<ipc::StructuredCloneData>* aJSONRetVal = nullptr);
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virtual bool RecvAsyncAuthPrompt(const nsCString& aUri,
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const nsString& aRealm,
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const uint64_t& aCallbackId) override;
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virtual bool Recv__delete__() override;
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virtual void ActorDestroy(ActorDestroyReason why) override;
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Element* mFrameElement;
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nsCOMPtr<nsIBrowserDOMWindow> mBrowserDOMWindow;
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virtual PRenderFrameParent* AllocPRenderFrameParent() override;
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virtual bool DeallocPRenderFrameParent(PRenderFrameParent* aFrame) override;
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virtual bool RecvRemotePaintIsReady() override;
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virtual bool RecvForcePaintNoOp(const uint64_t& aLayerObserverEpoch) override;
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virtual bool RecvSetDimensions(const uint32_t& aFlags,
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const int32_t& aX, const int32_t& aY,
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const int32_t& aCx, const int32_t& aCy) override;
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virtual bool RecvGetTabCount(uint32_t* aValue) override;
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virtual bool RecvAudioChannelActivityNotification(const uint32_t& aAudioChannel,
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const bool& aActive) override;
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virtual bool RecvNotifySessionHistoryChange(const uint32_t& aCount) override;
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virtual bool RecvRequestCrossBrowserNavigation(const uint32_t& aGlobalIndex) override;
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ContentCacheInParent mContentCache;
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nsIntRect mRect;
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ScreenIntSize mDimensions;
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ScreenOrientationInternal mOrientation;
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float mDPI;
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int32_t mRounding;
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CSSToLayoutDeviceScale mDefaultScale;
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bool mUpdatedDimensions;
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nsSizeMode mSizeMode;
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LayoutDeviceIntPoint mClientOffset;
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LayoutDeviceIntPoint mChromeOffset;
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private:
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void DestroyInternal();
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already_AddRefed<nsFrameLoader>
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GetFrameLoader(bool aUseCachedFrameLoaderAfterDestroy = false) const;
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RefPtr<nsIContentParent> mManager;
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void TryCacheDPIAndScale();
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nsresult UpdatePosition();
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bool AsyncPanZoomEnabled() const;
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// Cached value indicating the docshell active state of the remote browser.
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bool mDocShellIsActive;
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// Update state prior to routing an APZ-aware event to the child process.
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// |aOutTargetGuid| will contain the identifier
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// of the APZC instance that handled the event. aOutTargetGuid may be null.
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// |aOutInputBlockId| will contain the identifier of the input block
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// that this event was added to, if there was one. aOutInputBlockId may be null.
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// |aOutApzResponse| will contain the response that the APZ gave when processing
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// the input block; this is used for generating appropriate pointercancel events.
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void ApzAwareEventRoutingToChild(ScrollableLayerGuid* aOutTargetGuid,
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uint64_t* aOutInputBlockId,
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nsEventStatus* aOutApzResponse);
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// When true, we've initiated normal shutdown and notified our managing PContent.
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bool mMarkedDestroying;
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// When true, the TabParent is invalid and we should not send IPC messages anymore.
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bool mIsDestroyed;
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uint32_t mChromeFlags;
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nsTArray<nsTArray<IPCDataTransferItem>> mInitialDataTransferItems;
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RefPtr<gfx::DataSourceSurface> mDnDVisualization;
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bool mDragValid;
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LayoutDeviceIntRect mDragRect;
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// When true, the TabParent is initialized without child side's request.
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// When false, the TabParent is initialized by window.open() from child side.
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bool mInitedByParent;
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nsCOMPtr<nsILoadContext> mLoadContext;
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// We keep a strong reference to the frameloader after we've sent the
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// Destroy message and before we've received __delete__. This allows us to
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// dispatch message manager messages during this time.
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RefPtr<nsFrameLoader> mFrameLoader;
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TabId mTabId;
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// When loading a new tab or window via window.open, the child process sends
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// a new PBrowser to use. We store that tab in sNextTabParent and then
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// proceed through the browser's normal paths to create a new
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// window/tab. When it comes time to create a new TabParent, we instead use
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// sNextTabParent.
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static TabParent* sNextTabParent;
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// When loading a new tab or window via window.open, the child is
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// responsible for loading the URL it wants into the new TabChild. When the
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// parent receives the CreateWindow message, though, it sends a LoadURL
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// message, usually for about:blank. It's important for the about:blank load
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// to get processed because the Firefox frontend expects every new window to
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// immediately start loading something (see bug 1123090). However, we want
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// the child to process the LoadURL message before it returns from
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// ProvideWindow so that the URL sent from the parent doesn't override the
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// child's URL. This is not possible using our IPC mechanisms. To solve the
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// problem, we skip sending the LoadURL message in the parent and instead
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// return the URL as a result from CreateWindow. The child simulates
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// receiving a LoadURL message before returning from ProvideWindow.
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//
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// The mCreatingWindow flag is set while dispatching CreateWindow. During
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// that time, any LoadURL calls are skipped and the URL is stored in
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// mSkippedURL.
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bool mCreatingWindow;
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nsCString mDelayedURL;
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// When loading a new tab or window via window.open, we want to ensure that
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// frame scripts for that tab are loaded before any scripts start to run in
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// the window. We can't load the frame scripts the normal way, using
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// separate IPC messages, since they won't be processed by the child until
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// returning to the event loop, which is too late. Instead, we queue up
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// frame scripts that we intend to load and send them as part of the
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// CreateWindow response. Then TabChild loads them immediately.
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nsTArray<FrameScriptInfo> mDelayedFrameScripts;
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// Cached cursor setting from TabChild. When the cursor is over the tab,
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// it should take this appearance.
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nsCursor mCursor;
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nsCOMPtr<imgIContainer> mCustomCursor;
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uint32_t mCustomCursorHotspotX, mCustomCursorHotspotY;
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// True if the cursor changes from the TabChild should change the widget
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// cursor. This happens whenever the cursor is in the tab's region.
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bool mTabSetsCursor;
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RefPtr<nsIPresShell> mPresShellWithRefreshListener;
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bool mHasContentOpener;
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#ifdef DEBUG
|
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int32_t mActiveSupressDisplayportCount;
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#endif
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ShowInfo GetShowInfo();
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private:
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// This is used when APZ needs to find the TabParent associated with a layer
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// to dispatch events.
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typedef nsDataHashtable<nsUint64HashKey, TabParent*> LayerToTabParentTable;
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static LayerToTabParentTable* sLayerToTabParentTable;
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static void AddTabParentToTable(uint64_t aLayersId, TabParent* aTabParent);
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static void RemoveTabParentFromTable(uint64_t aLayersId);
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uint64_t mLayerTreeEpoch;
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// If this flag is set, then the tab's layers will be preserved even when
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// the tab's docshell is inactive.
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bool mPreserveLayers;
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public:
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static TabParent* GetTabParentFromLayersId(uint64_t aLayersId);
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};
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struct MOZ_STACK_CLASS TabParent::AutoUseNewTab final
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{
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public:
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AutoUseNewTab(TabParent* aNewTab, bool* aWindowIsNew, nsCString* aURLToLoad)
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: mNewTab(aNewTab), mWindowIsNew(aWindowIsNew), mURLToLoad(aURLToLoad)
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{
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MOZ_ASSERT(!TabParent::sNextTabParent);
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MOZ_ASSERT(!aNewTab->mCreatingWindow);
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TabParent::sNextTabParent = aNewTab;
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aNewTab->mCreatingWindow = true;
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aNewTab->mDelayedURL.Truncate();
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}
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~AutoUseNewTab()
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{
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mNewTab->mCreatingWindow = false;
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*mURLToLoad = mNewTab->mDelayedURL;
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if (TabParent::sNextTabParent) {
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MOZ_ASSERT(TabParent::sNextTabParent == mNewTab);
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TabParent::sNextTabParent = nullptr;
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*mWindowIsNew = false;
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}
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}
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private:
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TabParent* mNewTab;
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bool* mWindowIsNew;
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nsCString* mURLToLoad;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_tabs_TabParent_h
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