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gecko-dev/dom/ipc/TabChild.h

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/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 2; -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_TabChild_h
#define mozilla_dom_TabChild_h
#ifndef _IMPL_NS_LAYOUT
#include "mozilla/dom/PBrowserChild.h"
#endif
#ifdef DEBUG
#include "PCOMContentPermissionRequestChild.h"
#endif /* DEBUG */
#include "nsIWebNavigation.h"
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsIWebBrowserChrome2.h"
#include "nsIEmbeddingSiteWindow.h"
#include "nsIWebBrowserChromeFocus.h"
#include "nsIWidget.h"
#include "nsIDOMEventListener.h"
#include "nsIInterfaceRequestor.h"
#include "nsIWindowProvider.h"
#include "jsapi.h"
#include "nsIDOMWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocument.h"
#include "nsNetUtil.h"
#include "nsFrameMessageManager.h"
#include "nsIWebProgressListener.h"
#include "nsDOMEventTargetHelper.h"
#include "nsIDialogCreator.h"
#include "nsIDialogParamBlock.h"
#include "nsIPresShell.h"
#include "nsIPrincipal.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsWeakReference.h"
#include "nsITabChild.h"
#include "mozilla/Attributes.h"
#include "FrameMetrics.h"
#include "ProcessUtils.h"
#include "mozilla/dom/TabContext.h"
#include "mozilla/dom/ContentChild.h"
struct gfxMatrix;
class nsICachedFileDescriptorListener;
class nsIDOMWindowUtils;
namespace mozilla {
namespace layout {
class RenderFrameChild;
}
namespace layers {
struct TextureFactoryIdentifier;
}
namespace dom {
class TabChild;
class PContentDialogChild;
class ClonedMessageData;
class TabChildGlobal : public nsDOMEventTargetHelper,
public nsIContentFrameMessageManager,
public nsIScriptObjectPrincipal
{
public:
TabChildGlobal(TabChild* aTabChild);
void Init();
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TabChildGlobal, nsDOMEventTargetHelper)
NS_FORWARD_SAFE_NSIMESSAGELISTENERMANAGER(mMessageManager)
NS_FORWARD_SAFE_NSIMESSAGESENDER(mMessageManager)
NS_IMETHOD SendSyncMessage(const nsAString& aMessageName,
const JS::Value& aObject,
const JS::Value& aRemote,
JSContext* aCx,
uint8_t aArgc,
JS::Value* aRetval)
{
return mMessageManager
? mMessageManager->SendSyncMessage(aMessageName, aObject, aRemote, aCx, aArgc, aRetval)
: NS_ERROR_NULL_POINTER;
}
NS_IMETHOD GetContent(nsIDOMWindow** aContent) MOZ_OVERRIDE;
NS_IMETHOD GetDocShell(nsIDocShell** aDocShell) MOZ_OVERRIDE;
NS_IMETHOD Dump(const nsAString& aStr) MOZ_OVERRIDE
{
return mMessageManager ? mMessageManager->Dump(aStr) : NS_OK;
}
NS_IMETHOD PrivateNoteIntentionalCrash() MOZ_OVERRIDE;
NS_IMETHOD Btoa(const nsAString& aBinaryData,
nsAString& aAsciiBase64String) MOZ_OVERRIDE;
NS_IMETHOD Atob(const nsAString& aAsciiString,
nsAString& aBinaryData) MOZ_OVERRIDE;
NS_IMETHOD AddEventListener(const nsAString& aType,
nsIDOMEventListener* aListener,
bool aUseCapture)
{
// By default add listeners only for trusted events!
return nsDOMEventTargetHelper::AddEventListener(aType, aListener,
aUseCapture, false, 2);
}
using nsDOMEventTargetHelper::AddEventListener;
NS_IMETHOD AddEventListener(const nsAString& aType,
nsIDOMEventListener* aListener,
bool aUseCapture, bool aWantsUntrusted,
uint8_t optional_argc) MOZ_OVERRIDE
{
return nsDOMEventTargetHelper::AddEventListener(aType, aListener,
aUseCapture,
aWantsUntrusted,
optional_argc);
}
virtual JSContext* GetJSContextForEventHandlers() MOZ_OVERRIDE;
virtual nsIPrincipal* GetPrincipal() MOZ_OVERRIDE;
nsCOMPtr<nsIContentFrameMessageManager> mMessageManager;
TabChild* mTabChild;
};
class ContentListener MOZ_FINAL : public nsIDOMEventListener
{
public:
ContentListener(TabChild* aTabChild) : mTabChild(aTabChild) {}
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
protected:
TabChild* mTabChild;
};
class TabChild : public PBrowserChild,
public nsFrameScriptExecutor,
public nsIWebBrowserChrome2,
public nsIEmbeddingSiteWindow,
public nsIWebBrowserChromeFocus,
public nsIInterfaceRequestor,
public nsIWindowProvider,
public nsIDOMEventListener,
public nsIWebProgressListener,
public nsSupportsWeakReference,
public nsIDialogCreator,
public nsITabChild,
public nsIObserver,
public ipc::MessageManagerCallback,
public TabContext
{
typedef mozilla::dom::ClonedMessageData ClonedMessageData;
typedef mozilla::layout::RenderFrameChild RenderFrameChild;
typedef mozilla::layout::ScrollingBehavior ScrollingBehavior;
public:
/**
* This is expected to be called off the critical path to content
* startup. This is an opportunity to load things that are slow
* on the critical path.
*/
static void PreloadSlowThings();
/** Return a TabChild with the given attributes. */
static already_AddRefed<TabChild>
Create(ContentChild* aManager, const TabContext& aContext, uint32_t aChromeFlags);
virtual ~TabChild();
bool IsRootContentDocument();
NS_DECL_ISUPPORTS
NS_DECL_NSIWEBBROWSERCHROME
NS_DECL_NSIWEBBROWSERCHROME2
NS_DECL_NSIEMBEDDINGSITEWINDOW
NS_DECL_NSIWEBBROWSERCHROMEFOCUS
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSIWINDOWPROVIDER
NS_DECL_NSIDOMEVENTLISTENER
NS_DECL_NSIWEBPROGRESSLISTENER
NS_DECL_NSIDIALOGCREATOR
NS_DECL_NSITABCHILD
NS_DECL_NSIOBSERVER
/**
* MessageManagerCallback methods that we override.
*/
virtual bool DoSendSyncMessage(JSContext* aCx,
const nsAString& aMessage,
const mozilla::dom::StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows,
InfallibleTArray<nsString>* aJSONRetVal);
virtual bool DoSendAsyncMessage(JSContext* aCx,
const nsAString& aMessage,
const mozilla::dom::StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows);
virtual bool RecvLoadURL(const nsCString& uri);
virtual bool RecvCacheFileDescriptor(const nsString& aPath,
const FileDescriptor& aFileDescriptor)
MOZ_OVERRIDE;
virtual bool RecvShow(const nsIntSize& size);
virtual bool RecvUpdateDimensions(const nsRect& rect, const nsIntSize& size, const ScreenOrientation& orientation);
virtual bool RecvUpdateFrame(const mozilla::layers::FrameMetrics& aFrameMetrics);
virtual bool RecvHandleDoubleTap(const CSSIntPoint& aPoint);
virtual bool RecvHandleSingleTap(const CSSIntPoint& aPoint);
virtual bool RecvHandleLongTap(const CSSIntPoint& aPoint);
virtual bool RecvActivate();
virtual bool RecvDeactivate();
virtual bool RecvMouseEvent(const nsString& aType,
const float& aX,
const float& aY,
const int32_t& aButton,
const int32_t& aClickCount,
const int32_t& aModifiers,
const bool& aIgnoreRootScrollFrame);
virtual bool RecvRealMouseEvent(const nsMouseEvent& event);
virtual bool RecvRealKeyEvent(const nsKeyEvent& event);
virtual bool RecvMouseWheelEvent(const mozilla::widget::WheelEvent& event);
virtual bool RecvRealTouchEvent(const nsTouchEvent& event);
virtual bool RecvRealTouchMoveEvent(const nsTouchEvent& event);
virtual bool RecvKeyEvent(const nsString& aType,
const int32_t& aKeyCode,
const int32_t& aCharCode,
const int32_t& aModifiers,
const bool& aPreventDefault);
virtual bool RecvCompositionEvent(const nsCompositionEvent& event);
virtual bool RecvTextEvent(const nsTextEvent& event);
virtual bool RecvSelectionEvent(const nsSelectionEvent& event);
virtual bool RecvActivateFrameEvent(const nsString& aType, const bool& capture);
virtual bool RecvLoadRemoteScript(const nsString& aURL);
virtual bool RecvAsyncMessage(const nsString& aMessage,
const ClonedMessageData& aData,
const InfallibleTArray<CpowEntry>& aCpows);
virtual PDocumentRendererChild*
AllocPDocumentRendererChild(const nsRect& documentRect, const gfxMatrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags, const bool& flushLayout,
const nsIntSize& renderSize);
virtual bool DeallocPDocumentRendererChild(PDocumentRendererChild* actor);
virtual bool RecvPDocumentRendererConstructor(PDocumentRendererChild* actor,
const nsRect& documentRect,
const gfxMatrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags,
const bool& flushLayout,
const nsIntSize& renderSize);
virtual PContentDialogChild* AllocPContentDialogChild(const uint32_t&,
const nsCString&,
const nsCString&,
const InfallibleTArray<int>&,
const InfallibleTArray<nsString>&);
virtual bool DeallocPContentDialogChild(PContentDialogChild* aDialog);
static void ParamsToArrays(nsIDialogParamBlock* aParams,
InfallibleTArray<int>& aIntParams,
InfallibleTArray<nsString>& aStringParams);
static void ArraysToParams(const InfallibleTArray<int>& aIntParams,
const InfallibleTArray<nsString>& aStringParams,
nsIDialogParamBlock* aParams);
#ifdef DEBUG
virtual PContentPermissionRequestChild* SendPContentPermissionRequestConstructor(PContentPermissionRequestChild* aActor,
const nsCString& aType,
const nsCString& aAccess,
const IPC::Principal& aPrincipal)
{
PCOMContentPermissionRequestChild* child = static_cast<PCOMContentPermissionRequestChild*>(aActor);
PContentPermissionRequestChild* request = PBrowserChild::SendPContentPermissionRequestConstructor(aActor, aType, aAccess, aPrincipal);
child->mIPCOpen = true;
return request;
}
#endif /* DEBUG */
virtual PContentPermissionRequestChild* AllocPContentPermissionRequestChild(const nsCString& aType,
const nsCString& aAccess,
const IPC::Principal& aPrincipal);
virtual bool DeallocPContentPermissionRequestChild(PContentPermissionRequestChild* actor);
virtual POfflineCacheUpdateChild* AllocPOfflineCacheUpdateChild(
const URIParams& manifestURI,
const URIParams& documentURI,
const bool& stickDocument);
virtual bool DeallocPOfflineCacheUpdateChild(POfflineCacheUpdateChild* offlineCacheUpdate);
nsIWebNavigation* WebNavigation() { return mWebNav; }
nsIPrincipal* GetPrincipal() { return mPrincipal; }
/** Return the DPI of the widget this TabChild draws to. */
void GetDPI(float* aDPI);
void GetDefaultScale(double *aScale);
ScreenToScreenScale GetZoom() { return mLastMetrics.mZoom; }
ScreenOrientation GetOrientation() { return mOrientation; }
void SetBackgroundColor(const nscolor& aColor);
void NotifyPainted();
bool IsAsyncPanZoomEnabled();
/** Return a boolean indicating if the page has called preventDefault on
* the event.
*/
bool DispatchMouseEvent(const nsString& aType,
const CSSPoint& aPoint,
const int32_t& aButton,
const int32_t& aClickCount,
const int32_t& aModifiers,
const bool& aIgnoreRootScrollFrame);
/**
* Signal to this TabChild that it should be made visible:
* activated widget, retained layer tree, etc. (Respectively,
* made not visible.)
*/
void MakeVisible();
void MakeHidden();
// Returns true if the file descriptor was found in the cache, false
// otherwise.
bool GetCachedFileDescriptor(const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback);
void CancelCachedFileDescriptorCallback(
const nsAString& aPath,
nsICachedFileDescriptorListener* aCallback);
ContentChild* Manager() { return mManager; }
protected:
virtual PRenderFrameChild* AllocPRenderFrameChild(ScrollingBehavior* aScrolling,
TextureFactoryIdentifier* aTextureFactoryIdentifier,
uint64_t* aLayersId) MOZ_OVERRIDE;
virtual bool DeallocPRenderFrameChild(PRenderFrameChild* aFrame) MOZ_OVERRIDE;
virtual bool RecvDestroy() MOZ_OVERRIDE;
nsEventStatus DispatchWidgetEvent(nsGUIEvent& event);
virtual PIndexedDBChild* AllocPIndexedDBChild(const nsCString& aASCIIOrigin,
bool* /* aAllowed */);
virtual bool DeallocPIndexedDBChild(PIndexedDBChild* aActor);
private:
/**
* Create a new TabChild object.
*
* |aOwnOrContainingAppId| is the app-id of our frame or of the closest app
* frame in the hierarchy which contains us.
*
* |aIsBrowserElement| indicates whether we're a browser (but not an app).
*/
TabChild(ContentChild* aManager, const TabContext& aContext, uint32_t aChromeFlags);
nsresult Init();
// Notify others that our TabContext has been updated. (At the moment, this
// sets the appropriate app-id and is-browser flags on our docshell.)
//
// You should call this after calling TabContext::SetTabContext(). We also
// call this during Init().
void NotifyTabContextUpdated();
bool UseDirectCompositor();
void ActorDestroy(ActorDestroyReason why);
enum FrameScriptLoading { DONT_LOAD_SCRIPTS, DEFAULT_LOAD_SCRIPTS };
bool InitTabChildGlobal(FrameScriptLoading aScriptLoading = DEFAULT_LOAD_SCRIPTS);
bool InitRenderingState();
void DestroyWindow();
void SetProcessNameToAppName();
bool ProcessUpdateFrame(const mozilla::layers::FrameMetrics& aFrameMetrics);
// Update the DOM with the given display port. Finds the element based on
// the aFrameMetrics.mScrollId.
void SetDisplayPort(const FrameMetrics& aFrameMetrics);
// Call RecvShow(nsIntSize(0, 0)) and block future calls to RecvShow().
void DoFakeShow();
// Wrapper for nsIDOMWindowUtils.setCSSViewport(). This updates some state
// variables local to this class before setting it.
void SetCSSViewport(const CSSSize& aSize);
// Recalculates the display state, including the CSS
// viewport. This should be called whenever we believe the
// viewport data on a document may have changed. If it didn't
// change, this function doesn't do anything. However, it should
// not be called all the time as it is fairly expensive.
void HandlePossibleViewportChange();
// Wraps up a JSON object as a structured clone and sends it to the browser
// chrome script.
//
// XXX/bug 780335: Do the work the browser chrome script does in C++ instead
// so we don't need things like this.
void DispatchMessageManagerMessage(const nsAString& aMessageName,
const nsACString& aJSONData);
void DispatchSynthesizedMouseEvent(uint32_t aMsg, uint64_t aTime,
const LayoutDevicePoint& aRefPoint);
// These methods are used for tracking synthetic mouse events
// dispatched for compatibility. On each touch event, we
// UpdateTapState(). If we've detected that the current gesture
// isn't a tap, then we CancelTapTracking(). In the meantime, we
// may detect a context-menu event, and if so we
// FireContextMenuEvent().
void FireContextMenuEvent();
void CancelTapTracking();
void UpdateTapState(const nsTouchEvent& aEvent, nsEventStatus aStatus);
nsresult
BrowserFrameProvideWindow(nsIDOMWindow* aOpener,
nsIURI* aURI,
const nsAString& aName,
const nsACString& aFeatures,
bool* aWindowIsNew,
nsIDOMWindow** aReturn);
already_AddRefed<nsIDOMWindowUtils> GetDOMWindowUtils();
class CachedFileDescriptorInfo;
class CachedFileDescriptorCallbackRunnable;
TextureFactoryIdentifier mTextureFactoryIdentifier;
nsCOMPtr<nsIWebNavigation> mWebNav;
nsCOMPtr<nsIWidget> mWidget;
nsCOMPtr<nsIURI> mLastURI;
FrameMetrics mLastMetrics;
RenderFrameChild* mRemoteFrame;
nsRefPtr<ContentChild> mManager;
nsRefPtr<TabChildGlobal> mTabChildGlobal;
uint32_t mChromeFlags;
nsIntRect mOuterRect;
ScreenIntSize mInnerSize;
// When we're tracking a possible tap gesture, this is the "down"
// point of the touchstart.
LayoutDevicePoint mGestureDownPoint;
// The touch identifier of the active gesture.
int32_t mActivePointerId;
// A timer task that fires if the tap-hold timeout is exceeded by
// the touch we're tracking. That is, if touchend or a touchmove
// that exceeds the gesture threshold doesn't happen.
CancelableTask* mTapHoldTimer;
// Whether we have already received a FileDescriptor for the app package.
bool mAppPackageFileDescriptorRecved;
// At present only 1 of these is really expected.
nsAutoTArray<nsAutoPtr<CachedFileDescriptorInfo>, 1>
mCachedFileDescriptorInfos;
float mOldViewportWidth;
nscolor mLastBackgroundColor;
ScrollingBehavior mScrolling;
bool mDidFakeShow;
bool mNotified;
bool mContentDocumentIsDisplayed;
bool mTriedBrowserInit;
ScreenOrientation mOrientation;
DISALLOW_EVIL_CONSTRUCTORS(TabChild);
};
inline TabChild*
GetTabChildFrom(nsIDocShell* aDocShell)
{
nsCOMPtr<nsITabChild> tc = do_GetInterface(aDocShell);
return static_cast<TabChild*>(tc.get());
}
inline TabChild*
GetTabChildFrom(nsIPresShell* aPresShell)
{
nsIDocument* doc = aPresShell->GetDocument();
if (!doc) {
return nullptr;
}
nsCOMPtr<nsISupports> container = doc->GetContainer();
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(container));
return GetTabChildFrom(docShell);
}
inline TabChild*
GetTabChildFrom(nsIDOMWindow* aWindow)
{
nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(aWindow);
nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(webNav);
return GetTabChildFrom(docShell);
}
}
}
#endif // mozilla_dom_TabChild_h
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