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gecko/dom/ipc/TabChild.h
Chris Jones b00b1e25b0 Bug 795657: Integrate native viewport configuration better into async pan-zoom code. r=jwir3,roc 
This is a rollup of the following patches
 - Change the interpretation of FrameMetrics.mZoom to a "resolution-indepedent zoom", instead of a resolution-depedent scale factor. r=roc
 - Remove mention of "meta" from TabChild. r=roc
 - Remove some useless logging. r=roc
 - Tag FrameMetrics with its composition bounds at paint time. r=roc
 - Add a helper to calculate the render resolution for a FrameMetrics. r=roc
 - Add a helper to compute the approximate CSS dimensions a FrameMetrics will cover during composition. r=roc
 - BrowserElementScrolling doesn't actually care about zoom or resolution. r=roc
 - Accept the viewport that content has calculated, when it's received the latest widget geometry update. r=roc
 - Mechanically separate uses of zoom/resolution based on new definitions. r=roc
 - Convert GetViewportInfo()'s resolution-dependent scale into resolution-indepedent zoom. r=roc
 - Reinterpret defaultZoom == 0.0 as "intrinsic scale". r=jwir3,roc
2012-10-11 22:46:24 -07:00

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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 "nsIDOMEventTarget.h"
#include "nsIInterfaceRequestor.h"
#include "nsIWindowProvider.h"
#include "nsIXPCScriptable.h"
#include "nsIClassInfo.h"
#include "jsapi.h"
#include "nsIXPConnect.h"
#include "nsIDOMWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocument.h"
#include "nsNetUtil.h"
#include "nsFrameMessageManager.h"
#include "nsIScriptContext.h"
#include "nsIWebProgressListener.h"
#include "nsDOMEventTargetHelper.h"
#include "nsIDialogCreator.h"
#include "nsIDialogParamBlock.h"
#include "nsIDOMWindowUtils.h"
#include "nsIPresShell.h"
#include "nsIPrincipal.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsIScriptContext.h"
#include "nsPIDOMWindow.h"
#include "nsWeakReference.h"
#include "nsITabChild.h"
#include "mozilla/Attributes.h"
#include "FrameMetrics.h"
#include "ProcessUtils.h"
struct gfxMatrix;
namespace mozilla {
namespace layout {
class RenderFrameChild;
}
namespace dom {
class TabChild;
class PContentDialogChild;
class ClonedMessageData;
class TabChildGlobal : public nsDOMEventTargetHelper,
public nsIContentFrameMessageManager,
public nsIScriptObjectPrincipal,
public nsIScriptContextPrincipal
{
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 jsval& aObject,
JSContext* aCx,
uint8_t aArgc,
jsval* aRetval)
{
return mMessageManager
? mMessageManager->SendSyncMessage(aMessageName, aObject, aCx, aArgc, aRetval)
: NS_ERROR_NULL_POINTER;
}
NS_IMETHOD GetContent(nsIDOMWindow** aContent);
NS_IMETHOD GetDocShell(nsIDocShell** aDocShell);
NS_IMETHOD Dump(const nsAString& aStr)
{
return mMessageManager ? mMessageManager->Dump(aStr) : NS_OK;
}
NS_IMETHOD PrivateNoteIntentionalCrash();
NS_IMETHOD Btoa(const nsAString& aBinaryData,
nsAString& aAsciiBase64String);
NS_IMETHOD Atob(const nsAString& aAsciiString,
nsAString& aBinaryData);
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);
}
NS_IMETHOD AddEventListener(const nsAString& aType,
nsIDOMEventListener* aListener,
bool aUseCapture, bool aWantsUntrusted,
uint8_t optional_argc)
{
return nsDOMEventTargetHelper::AddEventListener(aType, aListener,
aUseCapture,
aWantsUntrusted,
optional_argc);
}
virtual nsIScriptObjectPrincipal* GetObjectPrincipal() { return this; }
virtual JSContext* GetJSContextForEventHandlers();
virtual nsIPrincipal* GetPrincipal();
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 mozilla::dom::ipc::MessageManagerCallback
{
typedef mozilla::layout::RenderFrameChild RenderFrameChild;
typedef mozilla::dom::ClonedMessageData ClonedMessageData;
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(uint32_t aChromeFlags, bool aIsBrowserElement, uint32_t aAppId);
virtual ~TabChild();
uint32_t GetAppId() { return mAppId; }
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(const nsAString& aMessage,
const mozilla::dom::StructuredCloneData& aData,
InfallibleTArray<nsString>* aJSONRetVal);
virtual bool DoSendAsyncMessage(const nsAString& aMessage,
const mozilla::dom::StructuredCloneData& aData);
virtual bool RecvLoadURL(const nsCString& uri);
virtual bool RecvShow(const nsIntSize& size);
virtual bool RecvUpdateDimensions(const nsRect& rect, const nsIntSize& size);
virtual bool RecvUpdateFrame(const mozilla::layers::FrameMetrics& aFrameMetrics);
virtual bool RecvHandleDoubleTap(const nsIntPoint& aPoint);
virtual bool RecvHandleSingleTap(const nsIntPoint& 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);
virtual PDocumentRendererChild*
AllocPDocumentRenderer(const nsRect& documentRect, const gfxMatrix& transform,
const nsString& bgcolor,
const uint32_t& renderFlags, const bool& flushLayout,
const nsIntSize& renderSize);
virtual bool DeallocPDocumentRenderer(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* AllocPContentDialog(const uint32_t&,
const nsCString&,
const nsCString&,
const InfallibleTArray<int>&,
const InfallibleTArray<nsString>&);
virtual bool DeallocPContentDialog(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 IPC::Principal& aPrincipal)
{
PCOMContentPermissionRequestChild* child = static_cast<PCOMContentPermissionRequestChild*>(aActor);
PContentPermissionRequestChild* request = PBrowserChild::SendPContentPermissionRequestConstructor(aActor, aType, aPrincipal);
child->mIPCOpen = true;
return request;
}
#endif /* DEBUG */
virtual PContentPermissionRequestChild* AllocPContentPermissionRequest(const nsCString& aType, const IPC::Principal& aPrincipal);
virtual bool DeallocPContentPermissionRequest(PContentPermissionRequestChild* actor);
virtual POfflineCacheUpdateChild* AllocPOfflineCacheUpdate(
const URIParams& manifestURI,
const URIParams& documentURI,
const bool& isInBrowserElement,
const uint32_t& appId,
const bool& stickDocument);
virtual bool DeallocPOfflineCacheUpdate(POfflineCacheUpdateChild* offlineCacheUpdate);
nsIWebNavigation* WebNavigation() { return mWebNav; }
JSContext* GetJSContext() { return mCx; }
nsIPrincipal* GetPrincipal() { return mPrincipal; }
/** Return the DPI of the widget this TabChild draws to. */
void GetDPI(float* aDPI);
void SetBackgroundColor(const nscolor& aColor);
void NotifyPainted();
bool IsAsyncPanZoomEnabled();
protected:
virtual PRenderFrameChild* AllocPRenderFrame(ScrollingBehavior* aScrolling,
LayersBackend* aBackend,
int32_t* aMaxTextureSize,
uint64_t* aLayersId) MOZ_OVERRIDE;
virtual bool DeallocPRenderFrame(PRenderFrameChild* aFrame) MOZ_OVERRIDE;
virtual bool RecvDestroy() MOZ_OVERRIDE;
nsEventStatus DispatchWidgetEvent(nsGUIEvent& event);
virtual PIndexedDBChild* AllocPIndexedDB(const nsCString& aASCIIOrigin,
bool* /* aAllowed */);
virtual bool DeallocPIndexedDB(PIndexedDBChild* aActor);
private:
/**
* Create a new TabChild object.
*
* |aIsBrowserElement| indicates whether the tab is inside an <iframe mozbrowser>.
* |aAppId| is the app id of the app containing this tab. If the tab isn't
* contained in an app, aAppId will be nsIScriptSecurityManager::NO_APP_ID.
*/
TabChild(uint32_t aChromeFlags, bool aIsBrowserElement, uint32_t aAppId);
nsresult Init();
void SetAppBrowserConfig(bool aIsBrowserElement, uint32_t aAppId);
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();
// 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(float aX, float aY);
// 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);
// Sends a simulated mouse event from a touch event for compatibility.
void DispatchSynthesizedMouseEvent(const nsTouchEvent& aEvent);
nsresult
BrowserFrameProvideWindow(nsIDOMWindow* aOpener,
nsIURI* aURI,
const nsAString& aName,
const nsACString& aFeatures,
bool* aWindowIsNew,
nsIDOMWindow** aReturn);
nsIDOMWindowUtils* GetDOMWindowUtils()
{
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(mWebNav);
nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window);
return utils;
}
nsCOMPtr<nsIWebNavigation> mWebNav;
nsCOMPtr<nsIWidget> mWidget;
nsCOMPtr<nsIURI> mLastURI;
FrameMetrics mLastMetrics;
RenderFrameChild* mRemoteFrame;
nsRefPtr<TabChildGlobal> mTabChildGlobal;
uint32_t mChromeFlags;
nsIntRect mOuterRect;
nsIntSize mInnerSize;
float mOldViewportWidth;
nscolor mLastBackgroundColor;
ScrollingBehavior mScrolling;
uint32_t mAppId;
bool mDidFakeShow;
bool mIsBrowserElement;
bool mNotified;
bool mContentDocumentIsDisplayed;
bool mTriedBrowserInit;
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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