mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-12-29 02:31:05 +00:00
387 lines
13 KiB
C++
387 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 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/. */
|
|
|
|
/*
|
|
* Class for managing loading of a subframe (creation of the docshell,
|
|
* handling of loads in it, recursion-checking).
|
|
*/
|
|
|
|
#ifndef nsFrameLoader_h_
|
|
#define nsFrameLoader_h_
|
|
|
|
#include "nsIDocShell.h"
|
|
#include "nsStringFwd.h"
|
|
#include "nsIFrameLoader.h"
|
|
#include "nsPoint.h"
|
|
#include "nsSize.h"
|
|
#include "nsIURI.h"
|
|
#include "nsAutoPtr.h"
|
|
#include "nsFrameMessageManager.h"
|
|
#include "mozilla/dom/Element.h"
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsStubMutationObserver.h"
|
|
#include "Units.h"
|
|
#include "nsIWebBrowserPersistable.h"
|
|
#include "nsIFrame.h"
|
|
|
|
class nsIURI;
|
|
class nsSubDocumentFrame;
|
|
class nsView;
|
|
class nsIInProcessContentFrameMessageManager;
|
|
class AutoResetInShow;
|
|
class AutoResetInFrameSwap;
|
|
class nsITabParent;
|
|
class nsIDocShellTreeItem;
|
|
class nsIDocShellTreeOwner;
|
|
class mozIApplication;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
class ContentParent;
|
|
class PBrowserParent;
|
|
class TabParent;
|
|
class MutableTabContext;
|
|
} // namespace dom
|
|
|
|
namespace ipc {
|
|
class StructuredCloneData;
|
|
} // namespace ipc
|
|
|
|
namespace layout {
|
|
class RenderFrameParent;
|
|
} // namespace layout
|
|
} // namespace mozilla
|
|
|
|
#if defined(MOZ_WIDGET_GTK)
|
|
typedef struct _GtkWidget GtkWidget;
|
|
#endif
|
|
|
|
class nsFrameLoader final : public nsIFrameLoader,
|
|
public nsIWebBrowserPersistable,
|
|
public nsStubMutationObserver,
|
|
public mozilla::dom::ipc::MessageManagerCallback
|
|
{
|
|
friend class AutoResetInShow;
|
|
friend class AutoResetInFrameSwap;
|
|
typedef mozilla::dom::PBrowserParent PBrowserParent;
|
|
typedef mozilla::dom::TabParent TabParent;
|
|
typedef mozilla::layout::RenderFrameParent RenderFrameParent;
|
|
|
|
public:
|
|
static nsFrameLoader* Create(mozilla::dom::Element* aOwner,
|
|
bool aNetworkCreated);
|
|
|
|
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsFrameLoader, nsIFrameLoader)
|
|
NS_DECL_NSIFRAMELOADER
|
|
NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
|
|
NS_DECL_NSIWEBBROWSERPERSISTABLE
|
|
nsresult CheckForRecursiveLoad(nsIURI* aURI);
|
|
nsresult ReallyStartLoading();
|
|
void StartDestroy();
|
|
void DestroyDocShell();
|
|
void DestroyComplete();
|
|
nsIDocShell* GetExistingDocShell() { return mDocShell; }
|
|
mozilla::dom::EventTarget* GetTabChildGlobalAsEventTarget();
|
|
nsresult CreateStaticClone(nsIFrameLoader* aDest);
|
|
|
|
/**
|
|
* MessageManagerCallback methods that we override.
|
|
*/
|
|
virtual bool DoLoadMessageManagerScript(const nsAString& aURL,
|
|
bool aRunInGlobalScope) override;
|
|
virtual nsresult DoSendAsyncMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
mozilla::dom::ipc::StructuredCloneData& aData,
|
|
JS::Handle<JSObject *> aCpows,
|
|
nsIPrincipal* aPrincipal) override;
|
|
virtual bool CheckPermission(const nsAString& aPermission) override;
|
|
virtual bool CheckManifestURL(const nsAString& aManifestURL) override;
|
|
virtual bool CheckAppHasPermission(const nsAString& aPermission) override;
|
|
|
|
/**
|
|
* Called from the layout frame associated with this frame loader;
|
|
* this notifies us to hook up with the widget and view.
|
|
*/
|
|
bool Show(int32_t marginWidth, int32_t marginHeight,
|
|
int32_t scrollbarPrefX, int32_t scrollbarPrefY,
|
|
nsSubDocumentFrame* frame);
|
|
|
|
/**
|
|
* Called when the margin properties of the containing frame are changed.
|
|
*/
|
|
void MarginsChanged(uint32_t aMarginWidth, uint32_t aMarginHeight);
|
|
|
|
/**
|
|
* Called from the layout frame associated with this frame loader, when
|
|
* the frame is being torn down; this notifies us that out widget and view
|
|
* are going away and we should unhook from them.
|
|
*/
|
|
void Hide();
|
|
|
|
nsresult CloneForStatic(nsIFrameLoader* aOriginal);
|
|
|
|
// The guts of an nsIFrameLoaderOwner::SwapFrameLoader implementation. A
|
|
// frame loader owner needs to call this, and pass in the two references to
|
|
// nsRefPtrs for frame loaders that need to be swapped.
|
|
nsresult SwapWithOtherLoader(nsFrameLoader* aOther,
|
|
RefPtr<nsFrameLoader>& aFirstToSwap,
|
|
RefPtr<nsFrameLoader>& aSecondToSwap);
|
|
|
|
nsresult SwapWithOtherRemoteLoader(nsFrameLoader* aOther,
|
|
RefPtr<nsFrameLoader>& aFirstToSwap,
|
|
RefPtr<nsFrameLoader>& aSecondToSwap);
|
|
|
|
/**
|
|
* Return the primary frame for our owning content, or null if it
|
|
* can't be found.
|
|
*/
|
|
nsIFrame* GetPrimaryFrameOfOwningContent() const
|
|
{
|
|
return mOwnerContent ? mOwnerContent->GetPrimaryFrame() : nullptr;
|
|
}
|
|
|
|
/**
|
|
* Return the document that owns this, or null if we don't have
|
|
* an owner.
|
|
*/
|
|
nsIDocument* GetOwnerDoc() const
|
|
{ return mOwnerContent ? mOwnerContent->OwnerDoc() : nullptr; }
|
|
|
|
PBrowserParent* GetRemoteBrowser() const;
|
|
|
|
/**
|
|
* The "current" render frame is the one on which the most recent
|
|
* remote layer-tree transaction was executed. If no content has
|
|
* been drawn yet, or the remote browser doesn't have any drawn
|
|
* content for whatever reason, return nullptr. The returned render
|
|
* frame has an associated shadow layer tree.
|
|
*
|
|
* Note that the returned render frame might not be a frame
|
|
* constructed for this->GetURL(). This can happen, e.g., if the
|
|
* <browser> was just navigated to a new URL, but hasn't painted the
|
|
* new page yet. A render frame for the previous page may be
|
|
* returned. (In-process <browser> behaves similarly, and this
|
|
* behavior seems desirable.)
|
|
*/
|
|
RenderFrameParent* GetCurrentRenderFrame() const;
|
|
|
|
nsFrameMessageManager* GetFrameMessageManager() { return mMessageManager; }
|
|
|
|
mozilla::dom::Element* GetOwnerContent() { return mOwnerContent; }
|
|
bool ShouldClipSubdocument() { return mClipSubdocument; }
|
|
|
|
bool ShouldClampScrollPosition() { return mClampScrollPosition; }
|
|
|
|
/**
|
|
* Tell this FrameLoader to use a particular remote browser.
|
|
*
|
|
* This will assert if mRemoteBrowser is non-null. In practice,
|
|
* this means you can't have successfully run TryRemoteBrowser() on
|
|
* this object, which means you can't have called ShowRemoteFrame()
|
|
* or ReallyStartLoading().
|
|
*/
|
|
void SetRemoteBrowser(nsITabParent* aTabParent);
|
|
|
|
nsresult SwapRemoteBrowser(nsITabParent* aTabParent);
|
|
|
|
/**
|
|
* Stashes a detached nsIFrame on the frame loader. We do this when we're
|
|
* destroying the nsSubDocumentFrame. If the nsSubdocumentFrame is
|
|
* being reframed we'll restore the detached nsIFrame when it's recreated,
|
|
* otherwise we'll discard the old presentation and set the detached
|
|
* subdoc nsIFrame to null. aContainerDoc is the document containing the
|
|
* the subdoc frame. This enables us to detect when the containing
|
|
* document has changed during reframe, so we can discard the presentation
|
|
* in that case.
|
|
*/
|
|
void SetDetachedSubdocFrame(nsIFrame* aDetachedFrame,
|
|
nsIDocument* aContainerDoc);
|
|
|
|
/**
|
|
* Retrieves the detached nsIFrame and the document containing the nsIFrame,
|
|
* as set by SetDetachedSubdocFrame().
|
|
*/
|
|
nsIFrame* GetDetachedSubdocFrame(nsIDocument** aContainerDoc) const;
|
|
|
|
/**
|
|
* Applies a new set of sandbox flags. These are merged with the sandbox
|
|
* flags from our owning content's owning document with a logical OR, this
|
|
* ensures that we can only add restrictions and never remove them.
|
|
*/
|
|
void ApplySandboxFlags(uint32_t sandboxFlags);
|
|
|
|
void GetURL(nsString& aURL);
|
|
|
|
void ActivateUpdateHitRegion();
|
|
void DeactivateUpdateHitRegion();
|
|
|
|
// Properly retrieves documentSize of any subdocument type.
|
|
nsresult GetWindowDimensions(nsIntRect& aRect);
|
|
|
|
// public because a callback needs these.
|
|
RefPtr<nsFrameMessageManager> mMessageManager;
|
|
nsCOMPtr<nsIInProcessContentFrameMessageManager> mChildMessageManager;
|
|
|
|
private:
|
|
nsFrameLoader(mozilla::dom::Element* aOwner, bool aNetworkCreated);
|
|
~nsFrameLoader();
|
|
|
|
void SetOwnerContent(mozilla::dom::Element* aContent);
|
|
|
|
bool ShouldUseRemoteProcess();
|
|
|
|
/**
|
|
* Return true if the frame is a remote frame. Return false otherwise
|
|
*/
|
|
bool IsRemoteFrame();
|
|
|
|
/**
|
|
* Is this a frameloader for a bona fide <iframe mozbrowser> or
|
|
* <iframe mozapp>? (I.e., does the frame return true for
|
|
* nsIMozBrowserFrame::GetReallyIsBrowserOrApp()?)
|
|
*/
|
|
bool OwnerIsBrowserOrAppFrame();
|
|
|
|
/**
|
|
* Is this a frameloader for a bona fide <iframe mozwidget>? (I.e., does the
|
|
* frame return true for nsIMozBrowserFrame::GetReallyIsWidget()?)
|
|
*/
|
|
bool OwnerIsWidget();
|
|
|
|
/**
|
|
* Is this a frameloader for a bona fide <iframe mozapp>? (I.e., does the
|
|
* frame return true for nsIMozBrowserFrame::GetReallyIsApp()?)
|
|
*/
|
|
bool OwnerIsAppFrame();
|
|
|
|
/**
|
|
* Is this a frame loader for a bona fide <iframe mozbrowser>?
|
|
*/
|
|
bool OwnerIsBrowserFrame();
|
|
|
|
/**
|
|
* Get our owning element's app manifest URL, or return the empty string if
|
|
* our owning element doesn't have an app manifest URL.
|
|
*/
|
|
void GetOwnerAppManifestURL(nsAString& aOut);
|
|
|
|
/**
|
|
* Get the app for our frame. This is the app whose manifest is returned by
|
|
* GetOwnerAppManifestURL.
|
|
*/
|
|
already_AddRefed<mozIApplication> GetOwnApp();
|
|
|
|
/**
|
|
* Get the app which contains this frame. This is the app associated with
|
|
* the frame element's principal.
|
|
*/
|
|
already_AddRefed<mozIApplication> GetContainingApp();
|
|
|
|
/**
|
|
* If we are an IPC frame, set mRemoteFrame. Otherwise, create and
|
|
* initialize mDocShell.
|
|
*/
|
|
nsresult MaybeCreateDocShell();
|
|
nsresult EnsureMessageManager();
|
|
nsresult ReallyLoadFrameScripts();
|
|
|
|
// Updates the subdocument position and size. This gets called only
|
|
// when we have our own in-process DocShell.
|
|
void UpdateBaseWindowPositionAndSize(nsSubDocumentFrame *aIFrame);
|
|
nsresult CheckURILoad(nsIURI* aURI);
|
|
void FireErrorEvent();
|
|
nsresult ReallyStartLoadingInternal();
|
|
|
|
// Return true if remote browser created; nothing else to do
|
|
bool TryRemoteBrowser();
|
|
|
|
// Tell the remote browser that it's now "virtually visible"
|
|
bool ShowRemoteFrame(const mozilla::ScreenIntSize& size,
|
|
nsSubDocumentFrame *aFrame = nullptr);
|
|
|
|
bool AddTreeItemToTreeOwner(nsIDocShellTreeItem* aItem,
|
|
nsIDocShellTreeOwner* aOwner,
|
|
int32_t aParentType,
|
|
nsIDocShell* aParentNode);
|
|
|
|
nsIAtom* TypeAttrName() const {
|
|
return mOwnerContent->IsXULElement()
|
|
? nsGkAtoms::type : nsGkAtoms::mozframetype;
|
|
}
|
|
|
|
// Update the permission manager's app-id refcount based on mOwnerContent's
|
|
// own-or-containing-app.
|
|
void ResetPermissionManagerStatus();
|
|
|
|
void InitializeBrowserAPI();
|
|
|
|
nsresult GetNewTabContext(mozilla::dom::MutableTabContext* aTabContext,
|
|
nsIURI* aURI = nullptr,
|
|
const nsACString& aPackageId = EmptyCString());
|
|
|
|
enum TabParentChange {
|
|
eTabParentRemoved,
|
|
eTabParentChanged
|
|
};
|
|
void MaybeUpdatePrimaryTabParent(TabParentChange aChange);
|
|
|
|
nsCOMPtr<nsIDocShell> mDocShell;
|
|
nsCOMPtr<nsIURI> mURIToLoad;
|
|
mozilla::dom::Element* mOwnerContent; // WEAK
|
|
|
|
// After the frameloader has been removed from the DOM but before all of the
|
|
// messages from the frame have been received, we keep a strong reference to
|
|
// our <browser> element.
|
|
RefPtr<mozilla::dom::Element> mOwnerContentStrong;
|
|
|
|
// Note: this variable must be modified only by ResetPermissionManagerStatus()
|
|
uint32_t mAppIdSentToPermissionManager;
|
|
|
|
// Stores the root frame of the subdocument while the subdocument is being
|
|
// reframed. Used to restore the presentation after reframing.
|
|
nsWeakFrame mDetachedSubdocFrame;
|
|
// Stores the containing document of the frame corresponding to this
|
|
// frame loader. This is reference is kept valid while the subframe's
|
|
// presentation is detached and stored in mDetachedSubdocFrame. This
|
|
// enables us to detect whether the frame has moved documents during
|
|
// a reframe, so that we know not to restore the presentation.
|
|
nsCOMPtr<nsIDocument> mContainerDocWhileDetached;
|
|
|
|
TabParent* mRemoteBrowser;
|
|
uint64_t mChildID;
|
|
|
|
// See nsIFrameLoader.idl. EVENT_MODE_NORMAL_DISPATCH automatically
|
|
// forwards some input events to out-of-process content.
|
|
uint32_t mEventMode;
|
|
|
|
bool mIsPrerendered : 1;
|
|
bool mDepthTooGreat : 1;
|
|
bool mIsTopLevelContent : 1;
|
|
bool mDestroyCalled : 1;
|
|
bool mNeedsAsyncDestroy : 1;
|
|
bool mInSwap : 1;
|
|
bool mInShow : 1;
|
|
bool mHideCalled : 1;
|
|
// True when the object is created for an element which the parser has
|
|
// created using NS_FROM_PARSER_NETWORK flag. If the element is modified,
|
|
// it may lose the flag.
|
|
bool mNetworkCreated : 1;
|
|
|
|
bool mRemoteBrowserShown : 1;
|
|
bool mRemoteFrame : 1;
|
|
bool mClipSubdocument : 1;
|
|
bool mClampScrollPosition : 1;
|
|
bool mObservingOwnerContent : 1;
|
|
|
|
// Backs nsIFrameLoader::{Get,Set}Visible. Visibility state here relates to
|
|
// whether this frameloader's <iframe mozbrowser> is setVisible(true)'ed, and
|
|
// doesn't necessarily correlate with docshell/document visibility.
|
|
bool mVisible : 1;
|
|
};
|
|
|
|
#endif
|