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gecko/layout/base/nsDocumentViewer.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 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/. */
/* container for a document and its presentation */
#include "nscore.h"
#include "nsCOMPtr.h"
#include "nsCRT.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsISupports.h"
#include "nsIContent.h"
#include "nsIContentViewerContainer.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewerPrint.h"
#include "nsIDOMBeforeUnloadEvent.h"
#include "nsIDocument.h"
#include "nsPresContext.h"
#include "nsIPresShell.h"
#include "nsStyleSet.h"
#include "nsIStyleSheet.h"
#include "nsCSSStyleSheet.h"
#include "nsIFrame.h"
#include "nsSubDocumentFrame.h"
#include "nsILinkHandler.h"
#include "nsIDOMDocument.h"
#include "nsISelectionListener.h"
#include "nsISelectionPrivate.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMHTMLCollection.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMRange.h"
#include "nsContentCID.h"
#include "nsLayoutCID.h"
#include "nsContentUtils.h"
#include "nsLayoutStylesheetCache.h"
#include "mozilla/Preferences.h"
#include "mozilla/dom/EncodingUtils.h"
#include "nsIDeviceContextSpec.h"
#include "nsViewManager.h"
#include "nsView.h"
#include "nsIPageSequenceFrame.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsIContentViewerEdit.h"
#include "nsIContentViewerFile.h"
#include "mozilla/css/Loader.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIDocShell.h"
#include "nsIBaseWindow.h"
#include "nsILayoutHistoryState.h"
#include "nsCharsetSource.h"
#include "nsGUIEvent.h"
#include "nsHTMLReflowState.h"
#include "nsIDOMHTMLAnchorElement.h"
#include "nsIDOMHTMLAreaElement.h"
#include "nsIDOMHTMLLinkElement.h"
#include "nsIImageLoadingContent.h"
#include "nsCopySupport.h"
#include "nsIDOMHTMLFrameSetElement.h"
#ifdef MOZ_XUL
#include "nsIXULDocument.h"
#include "nsXULPopupManager.h"
#endif
#include "nsIClipboardHelper.h"
#include "nsPIDOMWindow.h"
#include "nsDOMNavigationTiming.h"
#include "nsPIWindowRoot.h"
#include "nsJSEnvironment.h"
#include "nsFocusManager.h"
#include "nsIScrollableFrame.h"
#include "nsIHTMLDocument.h"
#include "nsGfxCIID.h"
#include "nsStyleSheetService.h"
#include "nsURILoader.h"
#include "nsRenderingContext.h"
#include "nsILoadContext.h"
#include "nsIPrompt.h"
#include "imgIContainer.h" // image animation mode constants
//--------------------------
// Printing Include
//---------------------------
#ifdef NS_PRINTING
#include "nsIWebBrowserPrint.h"
#include "nsPrintEngine.h"
// Print Options
#include "nsIPrintSettings.h"
#include "nsIPrintSettingsService.h"
#include "nsIPrintOptions.h"
#include "nsIServiceManager.h"
#include "nsISimpleEnumerator.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
// PrintOptions is now implemented by PrintSettingsService
static const char sPrintOptionsContractID[] = "@mozilla.org/gfx/printsettings-service;1";
// Printing Events
#include "nsPrintPreviewListener.h"
#include "nsIDOMHTMLFrameElement.h"
#include "nsIDOMHTMLIFrameElement.h"
#include "nsIDOMHTMLObjectElement.h"
#include "nsIPluginDocument.h"
// Print Progress
#include "nsIPrintProgress.h"
#include "nsIPrintProgressParams.h"
// Print error dialog
#include "nsIWindowWatcher.h"
// Printing
#include "nsPagePrintTimer.h"
#endif // NS_PRINTING
//focus
#include "nsIDOMEventTarget.h"
#include "nsIDOMEventListener.h"
#include "nsISelectionController.h"
#include "nsBidiUtils.h"
#include "nsISHEntry.h"
#include "nsISHistory.h"
#include "nsISHistoryInternal.h"
#include "nsIWebNavigation.h"
#include "nsWeakPtr.h"
#include "nsEventDispatcher.h"
//paint forcing
#include "prenv.h"
#include <stdio.h>
#include "nsObserverService.h"
#include "mozilla/dom/Element.h"
#include "jsfriendapi.h"
using namespace mozilla;
using namespace mozilla::dom;
#ifdef DEBUG
#undef NOISY_VIEWER
#else
#undef NOISY_VIEWER
#endif
//-----------------------------------------------------
// PR LOGGING
#ifdef MOZ_LOGGING
#define FORCE_PR_LOG /* Allow logging in the release build */
#endif
#include "prlog.h"
#ifdef PR_LOGGING
#ifdef NS_PRINTING
static PRLogModuleInfo *
GetPrintingLog()
{
static PRLogModuleInfo *sLog;
if (!sLog)
sLog = PR_NewLogModule("printing");
return sLog;
}
#define PR_PL(_p1) PR_LOG(GetPrintingLog(), PR_LOG_DEBUG, _p1);
#endif // NS_PRINTING
#define PRT_YESNO(_p) ((_p)?"YES":"NO")
#else
#define PRT_YESNO(_p)
#define PR_PL(_p1)
#endif
//-----------------------------------------------------
class nsDocumentViewer;
class nsPrintEventDispatcher;
// a small delegate class used to avoid circular references
class nsDocViewerSelectionListener : public nsISelectionListener
{
public:
// nsISupports interface...
NS_DECL_ISUPPORTS
// nsISelectionListerner interface
NS_DECL_NSISELECTIONLISTENER
nsDocViewerSelectionListener()
: mDocViewer(NULL)
, mGotSelectionState(false)
, mSelectionWasCollapsed(false)
{
}
virtual ~nsDocViewerSelectionListener() {}
nsresult Init(nsDocumentViewer *aDocViewer);
protected:
nsDocumentViewer* mDocViewer;
bool mGotSelectionState;
bool mSelectionWasCollapsed;
};
/** editor Implementation of the FocusListener interface
*/
class nsDocViewerFocusListener : public nsIDOMEventListener
{
public:
/** default constructor
*/
nsDocViewerFocusListener();
/** default destructor
*/
virtual ~nsDocViewerFocusListener();
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
nsresult Init(nsDocumentViewer *aDocViewer);
private:
nsDocumentViewer* mDocViewer;
};
//-------------------------------------------------------------
class nsDocumentViewer : public nsIContentViewer,
public nsIContentViewerEdit,
public nsIContentViewerFile,
public nsIMarkupDocumentViewer,
public nsIDocumentViewerPrint
#ifdef NS_PRINTING
, public nsIWebBrowserPrint
#endif
{
friend class nsDocViewerSelectionListener;
friend class nsPagePrintTimer;
friend class nsPrintEngine;
public:
nsDocumentViewer();
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
// nsISupports interface...
NS_DECL_ISUPPORTS
// nsIContentViewer interface...
NS_DECL_NSICONTENTVIEWER
// nsIContentViewerEdit
NS_DECL_NSICONTENTVIEWEREDIT
// nsIContentViewerFile
NS_DECL_NSICONTENTVIEWERFILE
// nsIMarkupDocumentViewer
NS_DECL_NSIMARKUPDOCUMENTVIEWER
#ifdef NS_PRINTING
// nsIWebBrowserPrint
NS_DECL_NSIWEBBROWSERPRINT
#endif
typedef void (*CallChildFunc)(nsIMarkupDocumentViewer* aViewer,
void* aClosure);
void CallChildren(CallChildFunc aFunc, void* aClosure);
// nsIDocumentViewerPrint Printing Methods
NS_DECL_NSIDOCUMENTVIEWERPRINT
static void DispatchBeforePrint(nsIDocument* aTop)
{
DispatchEventToWindowTree(aTop, NS_LITERAL_STRING("beforeprint"));
}
static void DispatchAfterPrint(nsIDocument* aTop)
{
DispatchEventToWindowTree(aTop, NS_LITERAL_STRING("afterprint"));
}
static void DispatchEventToWindowTree(nsIDocument* aTop,
const nsAString& aEvent);
protected:
virtual ~nsDocumentViewer();
private:
/**
* Creates a view manager, root view, and widget for the root view, setting
* mViewManager and mWindow.
* @param aSize the initial size in appunits
* @param aContainerView the container view to hook our root view up
* to as a child, or null if this will be the root view manager
*/
nsresult MakeWindow(const nsSize& aSize, nsView* aContainerView);
/**
* Create our device context
*/
nsresult CreateDeviceContext(nsView* aContainerView);
/**
* If aDoCreation is true, this creates the device context, creates a
* prescontext if necessary, and calls MakeWindow.
*
* If aForceSetNewDocument is false, then SetNewDocument won't be
* called if the window's current document is already mDocument.
*/
nsresult InitInternal(nsIWidget* aParentWidget,
nsISupports *aState,
const nsIntRect& aBounds,
bool aDoCreation,
bool aNeedMakeCX = true,
bool aForceSetNewDocument = true);
/**
* @param aDoInitialReflow set to true if you want to kick off the initial
* reflow
*/
nsresult InitPresentationStuff(bool aDoInitialReflow);
nsresult GetPopupNode(nsIDOMNode** aNode);
nsresult GetPopupLinkNode(nsIDOMNode** aNode);
nsresult GetPopupImageNode(nsIImageLoadingContent** aNode);
void PrepareToStartLoad(void);
nsresult SyncParentSubDocMap();
nsresult GetDocumentSelection(nsISelection **aSelection);
void DestroyPresShell();
void DestroyPresContext();
#ifdef NS_PRINTING
// Called when the DocViewer is notified that the state
// of Printing or PP has changed
void SetIsPrintingInDocShellTree(nsIDocShellTreeNode* aParentNode,
bool aIsPrintingOrPP,
bool aStartAtTop);
#endif // NS_PRINTING
// Whether we should attach to the top level widget. This is true if we
// are sharing/recycling a single base widget and not creating multiple
// child widgets.
bool ShouldAttachToTopLevel();
protected:
// These return the current shell/prescontext etc.
nsIPresShell* GetPresShell();
nsPresContext* GetPresContext();
nsViewManager* GetViewManager();
void DetachFromTopLevelWidget();
// IMPORTANT: The ownership implicit in the following member
// variables has been explicitly checked and set using nsCOMPtr
// for owning pointers and raw COM interface pointers for weak
// (ie, non owning) references. If you add any members to this
// class, please make the ownership explicit (pinkerton, scc).
nsWeakPtr mContainer; // it owns me!
nsWeakPtr mTopContainerWhilePrinting;
nsRefPtr<nsDeviceContext> mDeviceContext; // We create and own this baby
// the following six items are explicitly in this order
// so they will be destroyed in the reverse order (pinkerton, scc)
nsCOMPtr<nsIDocument> mDocument;
nsCOMPtr<nsIWidget> mWindow; // may be null
nsRefPtr<nsViewManager> mViewManager;
nsRefPtr<nsPresContext> mPresContext;
nsCOMPtr<nsIPresShell> mPresShell;
nsCOMPtr<nsISelectionListener> mSelectionListener;
nsRefPtr<nsDocViewerFocusListener> mFocusListener;
nsCOMPtr<nsIContentViewer> mPreviousViewer;
nsCOMPtr<nsISHEntry> mSHEntry;
nsIWidget* mParentWidget; // purposely won't be ref counted. May be null
bool mAttachedToParent; // view is attached to the parent widget
nsIntRect mBounds;
// mTextZoom/mPageZoom record the textzoom/pagezoom of the first (galley)
// presshell only.
float mTextZoom; // Text zoom, defaults to 1.0
float mPageZoom;
int mMinFontSize;
int16_t mNumURLStarts;
int16_t mDestroyRefCount; // a second "refcount" for the document viewer's "destroy"
unsigned mStopped : 1;
unsigned mLoaded : 1;
unsigned mDeferredWindowClose : 1;
// document management data
// these items are specific to markup documents (html and xml)
// may consider splitting these out into a subclass
unsigned mIsSticky : 1;
unsigned mInPermitUnload : 1;
#ifdef NS_PRINTING
unsigned mClosingWhilePrinting : 1;
#if NS_PRINT_PREVIEW
unsigned mPrintPreviewZoomed : 1;
// These data members support delayed printing when the document is loading
unsigned mPrintIsPending : 1;
unsigned mPrintDocIsFullyLoaded : 1;
nsCOMPtr<nsIPrintSettings> mCachedPrintSettings;
nsCOMPtr<nsIWebProgressListener> mCachedPrintWebProgressListner;
nsRefPtr<nsPrintEngine> mPrintEngine;
float mOriginalPrintPreviewScale;
float mPrintPreviewZoom;
nsAutoPtr<nsPrintEventDispatcher> mBeforeAndAfterPrint;
#endif // NS_PRINT_PREVIEW
#ifdef DEBUG
FILE* mDebugFile;
#endif // DEBUG
#endif // NS_PRINTING
/* character set member data */
int32_t mHintCharsetSource;
nsCString mHintCharset;
nsCString mDefaultCharacterSet;
nsCString mForceCharacterSet;
nsCString mPrevDocCharacterSet;
bool mIsPageMode;
bool mCallerIsClosingWindow;
bool mInitializedForPrintPreview;
bool mHidden;
};
class nsPrintEventDispatcher
{
public:
nsPrintEventDispatcher(nsIDocument* aTop) : mTop(aTop)
{
nsDocumentViewer::DispatchBeforePrint(mTop);
}
~nsPrintEventDispatcher()
{
nsDocumentViewer::DispatchAfterPrint(mTop);
}
nsCOMPtr<nsIDocument> mTop;
};
class nsDocumentShownDispatcher : public nsRunnable
{
public:
nsDocumentShownDispatcher(nsCOMPtr<nsIDocument> aDocument)
: mDocument(aDocument) {}
NS_IMETHOD Run();
private:
nsCOMPtr<nsIDocument> mDocument;
};
//------------------------------------------------------------------
// nsDocumentViewer
//------------------------------------------------------------------
//------------------------------------------------------------------
nsresult
NS_NewContentViewer(nsIContentViewer** aResult)
{
*aResult = new nsDocumentViewer();
NS_ADDREF(*aResult);
return NS_OK;
}
void nsDocumentViewer::PrepareToStartLoad()
{
mStopped = false;
mLoaded = false;
mAttachedToParent = false;
mDeferredWindowClose = false;
mCallerIsClosingWindow = false;
#ifdef NS_PRINTING
mPrintIsPending = false;
mPrintDocIsFullyLoaded = false;
mClosingWhilePrinting = false;
// Make sure we have destroyed it and cleared the data member
if (mPrintEngine) {
mPrintEngine->Destroy();
mPrintEngine = nullptr;
#ifdef NS_PRINT_PREVIEW
SetIsPrintPreview(false);
#endif
}
#ifdef DEBUG
mDebugFile = nullptr;
#endif
#endif // NS_PRINTING
}
// Note: operator new zeros our memory, so no need to init things to null.
nsDocumentViewer::nsDocumentViewer()
: mTextZoom(1.0), mPageZoom(1.0), mMinFontSize(0),
mIsSticky(true),
#ifdef NS_PRINT_PREVIEW
mPrintPreviewZoom(1.0),
#endif
mHintCharsetSource(kCharsetUninitialized),
mInitializedForPrintPreview(false),
mHidden(false)
{
PrepareToStartLoad();
}
NS_IMPL_ADDREF(nsDocumentViewer)
NS_IMPL_RELEASE(nsDocumentViewer)
NS_INTERFACE_MAP_BEGIN(nsDocumentViewer)
NS_INTERFACE_MAP_ENTRY(nsIContentViewer)
NS_INTERFACE_MAP_ENTRY(nsIMarkupDocumentViewer)
NS_INTERFACE_MAP_ENTRY(nsIContentViewerFile)
NS_INTERFACE_MAP_ENTRY(nsIContentViewerEdit)
NS_INTERFACE_MAP_ENTRY(nsIDocumentViewerPrint)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContentViewer)
#ifdef NS_PRINTING
NS_INTERFACE_MAP_ENTRY(nsIWebBrowserPrint)
#endif
NS_INTERFACE_MAP_END
nsDocumentViewer::~nsDocumentViewer()
{
if (mDocument) {
Close(nullptr);
mDocument->Destroy();
}
NS_ASSERTION(!mPresShell && !mPresContext,
"User did not call nsIContentViewer::Destroy");
if (mPresShell || mPresContext) {
// Make sure we don't hand out a reference to the content viewer to
// the SHEntry!
mSHEntry = nullptr;
Destroy();
}
// XXX(?) Revoke pending invalidate events
}
/*
* This method is called by the Document Loader once a document has
* been created for a particular data stream... The content viewer
* must cache this document for later use when Init(...) is called.
*
* This method is also called when an out of band document.write() happens.
* In that case, the document passed in is the same as the previous document.
*/
NS_IMETHODIMP
nsDocumentViewer::LoadStart(nsISupports *aDoc)
{
#ifdef NOISY_VIEWER
printf("nsDocumentViewer::LoadStart\n");
#endif
nsresult rv = NS_OK;
if (!mDocument) {
mDocument = do_QueryInterface(aDoc, &rv);
}
else if (mDocument == aDoc) {
// Reset the document viewer's state back to what it was
// when the document load started.
PrepareToStartLoad();
}
return rv;
}
nsresult
nsDocumentViewer::SyncParentSubDocMap()
{
nsCOMPtr<nsIDocShellTreeItem> item(do_QueryReferent(mContainer));
nsCOMPtr<nsPIDOMWindow> pwin(do_GetInterface(item));
nsCOMPtr<nsIContent> content;
if (mDocument && pwin) {
content = do_QueryInterface(pwin->GetFrameElementInternal());
}
if (content) {
nsCOMPtr<nsIDocShellTreeItem> parent;
item->GetParent(getter_AddRefs(parent));
nsCOMPtr<nsIDOMWindow> parent_win(do_GetInterface(parent));
if (parent_win) {
nsCOMPtr<nsIDOMDocument> dom_doc;
parent_win->GetDocument(getter_AddRefs(dom_doc));
nsCOMPtr<nsIDocument> parent_doc(do_QueryInterface(dom_doc));
if (parent_doc) {
if (mDocument &&
parent_doc->GetSubDocumentFor(content) != mDocument) {
mDocument->SuppressEventHandling(parent_doc->EventHandlingSuppressed());
}
return parent_doc->SetSubDocumentFor(content->AsElement(), mDocument);
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::SetContainer(nsISupports* aContainer)
{
mContainer = do_GetWeakReference(aContainer);
if (mPresContext) {
mPresContext->SetContainer(aContainer);
}
// We're loading a new document into the window where this document
// viewer lives, sync the parent document's frame element -> sub
// document map
return SyncParentSubDocMap();
}
NS_IMETHODIMP
nsDocumentViewer::GetContainer(nsISupports** aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = nullptr;
nsCOMPtr<nsISupports> container = do_QueryReferent(mContainer);
container.swap(*aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::Init(nsIWidget* aParentWidget,
const nsIntRect& aBounds)
{
return InitInternal(aParentWidget, nullptr, aBounds, true);
}
nsresult
nsDocumentViewer::InitPresentationStuff(bool aDoInitialReflow)
{
if (GetIsPrintPreview())
return NS_OK;
NS_ASSERTION(!mPresShell,
"Someone should have destroyed the presshell!");
// Create the style set...
nsStyleSet *styleSet;
nsresult rv = CreateStyleSet(mDocument, &styleSet);
NS_ENSURE_SUCCESS(rv, rv);
// Now make the shell for the document
rv = mDocument->CreateShell(mPresContext, mViewManager, styleSet,
getter_AddRefs(mPresShell));
if (NS_FAILED(rv)) {
delete styleSet;
return rv;
}
// We're done creating the style set
styleSet->EndUpdate();
if (aDoInitialReflow) {
// Since Initialize() will create frames for *all* items
// that are currently in the document tree, we need to flush
// any pending notifications to prevent the content sink from
// duplicating layout frames for content it has added to the tree
// but hasn't notified the document about. (Bug 154018)
//
// Note that we are flushing before we add mPresShell as an observer
// to avoid bogus notifications.
mDocument->FlushPendingNotifications(Flush_ContentAndNotify);
}
mPresShell->BeginObservingDocument();
// Initialize our view manager
nscoord width = mPresContext->DeviceContext()->UnscaledAppUnitsPerDevPixel() * mBounds.width;
nscoord height = mPresContext->DeviceContext()->UnscaledAppUnitsPerDevPixel() * mBounds.height;
mViewManager->SetWindowDimensions(width, height);
mPresContext->SetTextZoom(mTextZoom);
mPresContext->SetFullZoom(mPageZoom);
mPresContext->SetMinFontSize(mMinFontSize);
if (aDoInitialReflow) {
nsCOMPtr<nsIPresShell> shellGrip = mPresShell;
// Initial reflow
mPresShell->Initialize(width, height);
} else {
// Store the visible area so it's available for other callers of
// Initialize, like nsContentSink::StartLayout.
mPresContext->SetVisibleArea(nsRect(0, 0, width, height));
}
// now register ourselves as a selection listener, so that we get
// called when the selection changes in the window
if (!mSelectionListener) {
nsDocViewerSelectionListener *selectionListener =
new nsDocViewerSelectionListener();
selectionListener->Init(this);
// mSelectionListener is a owning reference
mSelectionListener = selectionListener;
}
nsCOMPtr<nsISelection> selection;
rv = GetDocumentSelection(getter_AddRefs(selection));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISelectionPrivate> selPrivate(do_QueryInterface(selection));
rv = selPrivate->AddSelectionListener(mSelectionListener);
if (NS_FAILED(rv))
return rv;
// Save old listener so we can unregister it
nsRefPtr<nsDocViewerFocusListener> oldFocusListener = mFocusListener;
// focus listener
//
// now register ourselves as a focus listener, so that we get called
// when the focus changes in the window
nsDocViewerFocusListener *focusListener = new nsDocViewerFocusListener();
focusListener->Init(this);
// mFocusListener is a strong reference
mFocusListener = focusListener;
if (mDocument) {
mDocument->AddEventListener(NS_LITERAL_STRING("focus"),
mFocusListener,
false, false);
mDocument->AddEventListener(NS_LITERAL_STRING("blur"),
mFocusListener,
false, false);
if (oldFocusListener) {
mDocument->RemoveEventListener(NS_LITERAL_STRING("focus"),
oldFocusListener, false);
mDocument->RemoveEventListener(NS_LITERAL_STRING("blur"),
oldFocusListener, false);
}
}
if (aDoInitialReflow && mDocument) {
mDocument->ScrollToRef();
}
return NS_OK;
}
static nsPresContext*
CreatePresContext(nsIDocument* aDocument,
nsPresContext::nsPresContextType aType,
nsView* aContainerView)
{
if (aContainerView)
return new nsPresContext(aDocument, aType);
return new nsRootPresContext(aDocument, aType);
}
//-----------------------------------------------
// This method can be used to initial the "presentation"
// The aDoCreation indicates whether it should create
// all the new objects or just initialize the existing ones
nsresult
nsDocumentViewer::InitInternal(nsIWidget* aParentWidget,
nsISupports *aState,
const nsIntRect& aBounds,
bool aDoCreation,
bool aNeedMakeCX /*= true*/,
bool aForceSetNewDocument /* = true*/)
{
if (mIsPageMode) {
// XXXbz should the InitInternal in SetPageMode just pass false
// here itself?
aForceSetNewDocument = false;
}
// We don't want any scripts to run here. That can cause flushing,
// which can cause reentry into initialization of this document viewer,
// which would be disastrous.
nsAutoScriptBlocker blockScripts;
mParentWidget = aParentWidget; // not ref counted
mBounds = aBounds;
nsresult rv = NS_OK;
NS_ENSURE_TRUE(mDocument, NS_ERROR_NULL_POINTER);
nsView* containerView = FindContainerView();
bool makeCX = false;
if (aDoCreation) {
nsresult rv = CreateDeviceContext(containerView);
NS_ENSURE_SUCCESS(rv, rv);
// XXXbz this is a nasty hack to do with the fact that we create
// presentations both in Init() and in Show()... Ideally we would only do
// it in one place (Show()) and require that callers call init(), open(),
// show() in that order or something.
if (!mPresContext &&
(aParentWidget || containerView || mDocument->IsBeingUsedAsImage() ||
(mDocument->GetDisplayDocument() &&
mDocument->GetDisplayDocument()->GetShell()))) {
// Create presentation context
if (mIsPageMode) {
//Presentation context already created in SetPageMode which is calling this method
} else {
mPresContext = CreatePresContext(mDocument,
nsPresContext::eContext_Galley, containerView);
}
NS_ENSURE_TRUE(mPresContext, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = mPresContext->Init(mDeviceContext);
if (NS_FAILED(rv)) {
mPresContext = nullptr;
return rv;
}
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
makeCX = !GetIsPrintPreview() && aNeedMakeCX; // needs to be true except when we are already in PP or we are enabling/disabling paginated mode.
#else
makeCX = true;
#endif
}
if (mPresContext) {
// Create the ViewManager and Root View...
// We must do this before we tell the script global object about
// this new document since doing that will cause us to re-enter
// into nsSubDocumentFrame code through reflows caused by
// FlushPendingNotifications() calls down the road...
rv = MakeWindow(nsSize(mPresContext->DevPixelsToAppUnits(aBounds.width),
mPresContext->DevPixelsToAppUnits(aBounds.height)),
containerView);
NS_ENSURE_SUCCESS(rv, rv);
Hide();
#ifdef NS_PRINT_PREVIEW
if (mIsPageMode) {
// I'm leaving this in a broken state for the moment; we should
// be measuring/scaling with the print device context, not the
// screen device context, but this is good enough to allow
// printing reftests to work.
double pageWidth = 0, pageHeight = 0;
mPresContext->GetPrintSettings()->GetEffectivePageSize(&pageWidth,
&pageHeight);
mPresContext->SetPageSize(
nsSize(mPresContext->CSSTwipsToAppUnits(NSToIntFloor(pageWidth)),
mPresContext->CSSTwipsToAppUnits(NSToIntFloor(pageHeight))));
mPresContext->SetIsRootPaginatedDocument(true);
mPresContext->SetPageScale(1.0f);
}
#endif
} else {
// Avoid leaking the old viewer.
if (mPreviousViewer) {
mPreviousViewer->Destroy();
mPreviousViewer = nullptr;
}
}
}
nsCOMPtr<nsIInterfaceRequestor> requestor(do_QueryReferent(mContainer));
if (requestor) {
if (mPresContext) {
nsCOMPtr<nsILinkHandler> linkHandler;
requestor->GetInterface(NS_GET_IID(nsILinkHandler),
getter_AddRefs(linkHandler));
mPresContext->SetContainer(requestor);
mPresContext->SetLinkHandler(linkHandler);
}
// Set script-context-owner in the document
nsCOMPtr<nsPIDOMWindow> window;
requestor->GetInterface(NS_GET_IID(nsPIDOMWindow),
getter_AddRefs(window));
if (window) {
nsCOMPtr<nsIDocument> curDoc = window->GetExtantDoc();
if (aForceSetNewDocument || curDoc != mDocument) {
window->SetNewDocument(mDocument, aState, false);
nsJSContext::LoadStart();
}
}
}
if (aDoCreation && mPresContext) {
// The ViewManager and Root View was created above (in
// MakeWindow())...
rv = InitPresentationStuff(!makeCX);
}
return rv;
}
void nsDocumentViewer::SetNavigationTiming(nsDOMNavigationTiming* timing)
{
NS_ASSERTION(mDocument, "Must have a document to set navigation timing.");
if (mDocument) {
mDocument->SetNavigationTiming(timing);
}
}
//
// LoadComplete(aStatus)
//
// aStatus - The status returned from loading the document.
//
// This method is called by the container when the document has been
// completely loaded.
//
NS_IMETHODIMP
nsDocumentViewer::LoadComplete(nsresult aStatus)
{
/* We need to protect ourself against auto-destruction in case the
window is closed while processing the OnLoad event. See bug
http://bugzilla.mozilla.org/show_bug.cgi?id=78445 for more
explanation.
*/
nsRefPtr<nsDocumentViewer> kungFuDeathGrip(this);
// Flush out layout so it's up-to-date by the time onload is called.
// Note that this could destroy the window, so do this before
// checking for our mDocument and its window.
if (mPresShell && !mStopped) {
// Hold strong ref because this could conceivably run script
nsCOMPtr<nsIPresShell> shell = mPresShell;
shell->FlushPendingNotifications(Flush_Layout);
}
nsresult rv = NS_OK;
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
// First, get the window from the document...
nsCOMPtr<nsPIDOMWindow> window = mDocument->GetWindow();
mLoaded = true;
// Now, fire either an OnLoad or OnError event to the document...
bool restoring = false;
// XXXbz imagelib kills off the document load for a full-page image with
// NS_ERROR_PARSED_DATA_CACHED if it's in the cache. So we want to treat
// that one as a success code; otherwise whether we fire onload for the image
// will depend on whether it's cached!
if(window &&
(NS_SUCCEEDED(aStatus) || aStatus == NS_ERROR_PARSED_DATA_CACHED)) {
nsEventStatus status = nsEventStatus_eIgnore;
nsEvent event(true, NS_LOAD);
event.mFlags.mBubbles = false;
// XXX Dispatching to |window|, but using |document| as the target.
event.target = mDocument;
// If the document presentation is being restored, we don't want to fire
// onload to the document content since that would likely confuse scripts
// on the page.
nsIDocShell *docShell = window->GetDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_UNEXPECTED);
docShell->GetRestoringDocument(&restoring);
if (!restoring) {
NS_ASSERTION(mDocument->IsXUL() || // readyState for XUL is bogus
mDocument->GetReadyStateEnum() ==
nsIDocument::READYSTATE_INTERACTIVE ||
// test_stricttransportsecurity.html has old-style
// docshell-generated about:blank docs reach this code!
(mDocument->GetReadyStateEnum() ==
nsIDocument::READYSTATE_UNINITIALIZED &&
NS_IsAboutBlank(mDocument->GetDocumentURI())),
"Bad readystate");
nsCOMPtr<nsIDocument> d = mDocument;
mDocument->SetReadyStateInternal(nsIDocument::READYSTATE_COMPLETE);
nsRefPtr<nsDOMNavigationTiming> timing(d->GetNavigationTiming());
if (timing) {
timing->NotifyLoadEventStart();
}
nsEventDispatcher::Dispatch(window, mPresContext, &event, nullptr,
&status);
if (timing) {
timing->NotifyLoadEventEnd();
}
}
} else {
// XXX: Should fire error event to the document...
}
// Notify the document that it has been shown (regardless of whether
// it was just loaded). Note: mDocument may be null now if the above
// firing of onload caused the document to unload.
if (mDocument) {
// Re-get window, since it might have changed during above firing of onload
window = mDocument->GetWindow();
if (window) {
nsIDocShell *docShell = window->GetDocShell();
bool isInUnload;
if (docShell && NS_SUCCEEDED(docShell->GetIsInUnload(&isInUnload)) &&
!isInUnload) {
mDocument->OnPageShow(restoring, nullptr);
}
}
}
// Now that the document has loaded, we can tell the presshell
// to unsuppress painting.
if (mPresShell && !mStopped) {
nsCOMPtr<nsIPresShell> shellDeathGrip(mPresShell);
mPresShell->UnsuppressPainting();
// mPresShell could have been removed now, see bug 378682/421432
if (mPresShell) {
mPresShell->ScrollToAnchor();
}
}
nsJSContext::LoadEnd();
#ifdef NS_PRINTING
// Check to see if someone tried to print during the load
if (mPrintIsPending) {
mPrintIsPending = false;
mPrintDocIsFullyLoaded = true;
Print(mCachedPrintSettings, mCachedPrintWebProgressListner);
mCachedPrintSettings = nullptr;
mCachedPrintWebProgressListner = nullptr;
}
#endif
return rv;
}
NS_IMETHODIMP
nsDocumentViewer::PermitUnload(bool aCallerClosesWindow, bool *aPermitUnload)
{
*aPermitUnload = true;
if (!mDocument || mInPermitUnload || mCallerIsClosingWindow) {
return NS_OK;
}
// First, get the script global object from the document...
nsPIDOMWindow *window = mDocument->GetWindow();
if (!window) {
// This is odd, but not fatal
NS_WARNING("window not set for document!");
return NS_OK;
}
NS_ASSERTION(nsContentUtils::IsSafeToRunScript(), "This is unsafe");
// Now, fire an BeforeUnload event to the document and see if it's ok
// to unload...
nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(mDocument);
nsCOMPtr<nsIDOMEvent> event;
domDoc->CreateEvent(NS_LITERAL_STRING("beforeunloadevent"),
getter_AddRefs(event));
nsCOMPtr<nsIDOMBeforeUnloadEvent> beforeUnload = do_QueryInterface(event);
NS_ENSURE_STATE(beforeUnload);
nsresult rv = event->InitEvent(NS_LITERAL_STRING("beforeunload"),
false, true);
NS_ENSURE_SUCCESS(rv, rv);
// Dispatching to |window|, but using |document| as the target.
event->SetTarget(mDocument);
event->SetTrusted(true);
// In evil cases we might be destroyed while handling the
// onbeforeunload event, don't let that happen. (see also bug#331040)
nsRefPtr<nsDocumentViewer> kungFuDeathGrip(this);
{
// Never permit popups from the beforeunload handler, no matter
// how we get here.
nsAutoPopupStatePusher popupStatePusher(openAbused, true);
mInPermitUnload = true;
nsEventDispatcher::DispatchDOMEvent(window, nullptr, event, mPresContext,
nullptr);
mInPermitUnload = false;
}
nsCOMPtr<nsIDocShellTreeNode> docShellNode(do_QueryReferent(mContainer));
nsAutoString text;
beforeUnload->GetReturnValue(text);
if (event->GetInternalNSEvent()->mFlags.mDefaultPrevented ||
!text.IsEmpty()) {
// Ask the user if it's ok to unload the current page
nsCOMPtr<nsIPrompt> prompt = do_GetInterface(docShellNode);
if (prompt) {
nsXPIDLString title, message, stayLabel, leaveLabel;
rv = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"OnBeforeUnloadTitle",
title);
nsresult tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"OnBeforeUnloadMessage",
message);
if (NS_FAILED(tmp)) {
rv = tmp;
}
tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"OnBeforeUnloadLeaveButton",
leaveLabel);
if (NS_FAILED(tmp)) {
rv = tmp;
}
tmp = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"OnBeforeUnloadStayButton",
stayLabel);
if (NS_FAILED(tmp)) {
rv = tmp;
}
if (NS_FAILED(rv) || !title || !message || !stayLabel || !leaveLabel) {
NS_ERROR("Failed to get strings from dom.properties!");
return NS_OK;
}
// Although the exact value is ignored, we must not pass invalid
// bool values through XPConnect.
bool dummy = false;
int32_t buttonPressed = 0;
uint32_t buttonFlags = (nsIPrompt::BUTTON_POS_0_DEFAULT |
(nsIPrompt::BUTTON_TITLE_IS_STRING * nsIPrompt::BUTTON_POS_0) |
(nsIPrompt::BUTTON_TITLE_IS_STRING * nsIPrompt::BUTTON_POS_1));
nsAutoSyncOperation sync(mDocument);
rv = prompt->ConfirmEx(title, message, buttonFlags,
leaveLabel, stayLabel, nullptr, nullptr,
&dummy, &buttonPressed);
NS_ENSURE_SUCCESS(rv, rv);
// Button 0 == leave, button 1 == stay
*aPermitUnload = (buttonPressed == 0);
}
}
if (docShellNode) {
int32_t childCount;
docShellNode->GetChildCount(&childCount);
for (int32_t i = 0; i < childCount && *aPermitUnload; ++i) {
nsCOMPtr<nsIDocShellTreeItem> item;
docShellNode->GetChildAt(i, getter_AddRefs(item));
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(item));
if (docShell) {
nsCOMPtr<nsIContentViewer> cv;
docShell->GetContentViewer(getter_AddRefs(cv));
if (cv) {
cv->PermitUnload(aCallerClosesWindow, aPermitUnload);
}
}
}
}
if (aCallerClosesWindow && *aPermitUnload)
mCallerIsClosingWindow = true;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::ResetCloseWindow()
{
mCallerIsClosingWindow = false;
nsCOMPtr<nsIDocShellTreeNode> docShellNode(do_QueryReferent(mContainer));
if (docShellNode) {
int32_t childCount;
docShellNode->GetChildCount(&childCount);
for (int32_t i = 0; i < childCount; ++i) {
nsCOMPtr<nsIDocShellTreeItem> item;
docShellNode->GetChildAt(i, getter_AddRefs(item));
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(item));
if (docShell) {
nsCOMPtr<nsIContentViewer> cv;
docShell->GetContentViewer(getter_AddRefs(cv));
if (cv) {
cv->ResetCloseWindow();
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::PageHide(bool aIsUnload)
{
mHidden = true;
if (!mDocument) {
return NS_ERROR_NULL_POINTER;
}
mDocument->OnPageHide(!aIsUnload, nullptr);
// inform the window so that the focus state is reset.
NS_ENSURE_STATE(mDocument);
nsPIDOMWindow *window = mDocument->GetWindow();
if (window)
window->PageHidden();
if (aIsUnload) {
// Poke the GC. The window might be collectable garbage now.
nsJSContext::PokeGC(JS::gcreason::PAGE_HIDE, NS_GC_DELAY * 2);
// if Destroy() was called during OnPageHide(), mDocument is nullptr.
NS_ENSURE_STATE(mDocument);
// First, get the window from the document...
nsPIDOMWindow *window = mDocument->GetWindow();
if (!window) {
// Fail if no window is available...
NS_WARNING("window not set for document!");
return NS_ERROR_NULL_POINTER;
}
// Now, fire an Unload event to the document...
nsEventStatus status = nsEventStatus_eIgnore;
nsEvent event(true, NS_PAGE_UNLOAD);
event.mFlags.mBubbles = false;
// XXX Dispatching to |window|, but using |document| as the target.
event.target = mDocument;
// Never permit popups from the unload handler, no matter how we get
// here.
nsAutoPopupStatePusher popupStatePusher(openAbused, true);
nsEventDispatcher::Dispatch(window, mPresContext, &event, nullptr, &status);
}
#ifdef MOZ_XUL
// look for open menupopups and close them after the unload event, in case
// the unload event listeners open any new popups
nsContentUtils::HidePopupsInDocument(mDocument);
#endif
return NS_OK;
}
static void
AttachContainerRecurse(nsIDocShell* aShell)
{
nsCOMPtr<nsIContentViewer> viewer;
aShell->GetContentViewer(getter_AddRefs(viewer));
if (viewer) {
nsIDocument* doc = viewer->GetDocument();
if (doc) {
doc->SetContainer(aShell);
}
nsRefPtr<nsPresContext> pc;
viewer->GetPresContext(getter_AddRefs(pc));
if (pc) {
pc->SetContainer(aShell);
pc->SetLinkHandler(nsCOMPtr<nsILinkHandler>(do_QueryInterface(aShell)));
}
nsCOMPtr<nsIPresShell> presShell;
viewer->GetPresShell(getter_AddRefs(presShell));
if (presShell) {
presShell->SetForwardingContainer(nullptr);
}
}
// Now recurse through the children
int32_t childCount;
aShell->GetChildCount(&childCount);
for (int32_t i = 0; i < childCount; ++i) {
nsCOMPtr<nsIDocShellTreeItem> childItem;
aShell->GetChildAt(i, getter_AddRefs(childItem));
AttachContainerRecurse(nsCOMPtr<nsIDocShell>(do_QueryInterface(childItem)));
}
}
NS_IMETHODIMP
nsDocumentViewer::Open(nsISupports *aState, nsISHEntry *aSHEntry)
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
if (mDocument)
mDocument->SetContainer(nsCOMPtr<nsISupports>(do_QueryReferent(mContainer)));
nsresult rv = InitInternal(mParentWidget, aState, mBounds, false);
NS_ENSURE_SUCCESS(rv, rv);
mHidden = false;
if (mPresShell)
mPresShell->SetForwardingContainer(nullptr);
// Rehook the child presentations. The child shells are still in
// session history, so get them from there.
if (aSHEntry) {
nsCOMPtr<nsIDocShellTreeItem> item;
int32_t itemIndex = 0;
while (NS_SUCCEEDED(aSHEntry->ChildShellAt(itemIndex++,
getter_AddRefs(item))) && item) {
AttachContainerRecurse(nsCOMPtr<nsIDocShell>(do_QueryInterface(item)));
}
}
SyncParentSubDocMap();
if (mFocusListener && mDocument) {
mDocument->AddEventListener(NS_LITERAL_STRING("focus"), mFocusListener,
false, false);
mDocument->AddEventListener(NS_LITERAL_STRING("blur"), mFocusListener,
false, false);
}
// XXX re-enable image animations once that works correctly
PrepareToStartLoad();
// When loading a page from the bfcache with puppet widgets, we do the
// widget attachment here (it is otherwise done in MakeWindow, which is
// called for non-bfcache pages in the history, but not bfcache pages).
// Attachment is necessary, since we get detached when another page
// is browsed to. That is, if we are one page A, then when we go to
// page B, we detach. So page A's view has no widget. If we then go
// back to it, and it is in the bfcache, we will use that view, which
// doesn't have a widget. The attach call here will properly attach us.
if (nsIWidget::UsePuppetWidgets() && mPresContext &&
ShouldAttachToTopLevel()) {
// If the old view is already attached to our parent, detach
DetachFromTopLevelWidget();
nsViewManager *vm = GetViewManager();
NS_ABORT_IF_FALSE(vm, "no view manager");
nsView* v = vm->GetRootView();
NS_ABORT_IF_FALSE(v, "no root view");
NS_ABORT_IF_FALSE(mParentWidget, "no mParentWidget to set");
v->AttachToTopLevelWidget(mParentWidget);
mAttachedToParent = true;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::Close(nsISHEntry *aSHEntry)
{
// All callers are supposed to call close to break circular
// references. If we do this stuff in the destructor, the
// destructor might never be called (especially if we're being
// used from JS.
mSHEntry = aSHEntry;
// Close is also needed to disable scripts during paint suppression,
// since we transfer the existing global object to the new document
// that is loaded. In the future, the global object may become a proxy
// for an object that can be switched in and out so that we don't need
// to disable scripts during paint suppression.
if (!mDocument)
return NS_OK;
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
// Turn scripting back on
// after PrintPreview had turned it off
if (GetIsPrintPreview() && mPrintEngine) {
mPrintEngine->TurnScriptingOn(true);
}
#endif
#ifdef NS_PRINTING
// A Close was called while we were printing
// so don't clear the ScriptGlobalObject
// or clear the mDocument below
if (mPrintEngine && !mClosingWhilePrinting) {
mClosingWhilePrinting = true;
} else
#endif
{
// out of band cleanup of docshell
mDocument->SetScriptGlobalObject(nullptr);
if (!mSHEntry && mDocument)
mDocument->RemovedFromDocShell();
}
if (mFocusListener && mDocument) {
mDocument->RemoveEventListener(NS_LITERAL_STRING("focus"), mFocusListener,
false);
mDocument->RemoveEventListener(NS_LITERAL_STRING("blur"), mFocusListener,
false);
}
return NS_OK;
}
static void
DetachContainerRecurse(nsIDocShell *aShell)
{
// Unhook this docshell's presentation
nsCOMPtr<nsIContentViewer> viewer;
aShell->GetContentViewer(getter_AddRefs(viewer));
if (viewer) {
nsIDocument* doc = viewer->GetDocument();
if (doc) {
doc->SetContainer(nullptr);
}
nsRefPtr<nsPresContext> pc;
viewer->GetPresContext(getter_AddRefs(pc));
if (pc) {
pc->SetContainer(nullptr);
pc->SetLinkHandler(nullptr);
}
nsCOMPtr<nsIPresShell> presShell;
viewer->GetPresShell(getter_AddRefs(presShell));
if (presShell) {
presShell->SetForwardingContainer(nsWeakPtr(do_GetWeakReference(aShell)));
}
}
// Now recurse through the children
int32_t childCount;
aShell->GetChildCount(&childCount);
for (int32_t i = 0; i < childCount; ++i) {
nsCOMPtr<nsIDocShellTreeItem> childItem;
aShell->GetChildAt(i, getter_AddRefs(childItem));
DetachContainerRecurse(nsCOMPtr<nsIDocShell>(do_QueryInterface(childItem)));
}
}
NS_IMETHODIMP
nsDocumentViewer::Destroy()
{
NS_ASSERTION(mDocument, "No document in Destroy()!");
#ifdef NS_PRINTING
// Here is where we check to see if the document was still being prepared
// for printing when it was asked to be destroy from someone externally
// This usually happens if the document is unloaded while the user is in the
// Print Dialog
//
// So we flip the bool to remember that the document is going away
// and we can clean up and abort later after returning from the Print Dialog
if (mPrintEngine) {
if (mPrintEngine->CheckBeforeDestroy()) {
return NS_OK;
}
}
mBeforeAndAfterPrint = nullptr;
#endif
// Don't let the document get unloaded while we are printing.
// this could happen if we hit the back button during printing.
// We also keep the viewer from being cached in session history, since
// we require all documents there to be sanitized.
if (mDestroyRefCount != 0) {
--mDestroyRefCount;
return NS_OK;
}
// If we were told to put ourselves into session history instead of destroy
// the presentation, do that now.
if (mSHEntry) {
if (mPresShell)
mPresShell->Freeze();
// Make sure the presentation isn't torn down by Hide().
mSHEntry->SetSticky(mIsSticky);
mIsSticky = true;
bool savePresentation = mDocument ? mDocument->IsBFCachingAllowed() : true;
// Remove our root view from the view hierarchy.
if (mPresShell) {
nsViewManager *vm = mPresShell->GetViewManager();
if (vm) {
nsView *rootView = vm->GetRootView();
if (rootView) {
// The invalidate that removing this view causes is dropped because
// the Freeze call above sets painting to be suppressed for our
// document. So we do it ourselves and make it happen.
vm->InvalidateViewNoSuppression(rootView,
rootView->GetBounds() - rootView->GetPosition());
nsView *rootViewParent = rootView->GetParent();
if (rootViewParent) {
nsViewManager *parentVM = rootViewParent->GetViewManager();
if (parentVM) {
parentVM->RemoveChild(rootView);
}
}
}
}
}
Hide();
// This is after Hide() so that the user doesn't see the inputs clear.
if (mDocument) {
mDocument->Sanitize();
}
// Reverse ownership. Do this *after* calling sanitize so that sanitize
// doesn't cause mutations that make the SHEntry drop the presentation
// Grab a reference to mSHEntry before calling into things like
// SyncPresentationState that might mess with our members.
nsCOMPtr<nsISHEntry> shEntry = mSHEntry; // we'll need this below
mSHEntry = nullptr;
if (savePresentation) {
shEntry->SetContentViewer(this);
}
// Always sync the presentation state. That way even if someone screws up
// and shEntry has no window state at this point we'll be ok; we just won't
// cache ourselves.
shEntry->SyncPresentationState();
// Break the link from the document/presentation to the docshell, so that
// link traversals cannot affect the currently-loaded document.
// When the presentation is restored, Open() and InitInternal() will reset
// these pointers to their original values.
if (mDocument) {
mDocument->SetContainer(nullptr);
}
if (mPresContext) {
mPresContext->SetLinkHandler(nullptr);
mPresContext->SetContainer(nullptr);
}
if (mPresShell)
mPresShell->SetForwardingContainer(mContainer);
// Do the same for our children. Note that we need to get the child
// docshells from the SHEntry now; the docshell will have cleared them.
nsCOMPtr<nsIDocShellTreeItem> item;
int32_t itemIndex = 0;
while (NS_SUCCEEDED(shEntry->ChildShellAt(itemIndex++,
getter_AddRefs(item))) && item) {
DetachContainerRecurse(nsCOMPtr<nsIDocShell>(do_QueryInterface(item)));
}
return NS_OK;
}
// The document was not put in the bfcache
if (mPresShell) {
DestroyPresShell();
}
if (mDocument) {
mDocument->Destroy();
mDocument = nullptr;
}
// All callers are supposed to call destroy to break circular
// references. If we do this stuff in the destructor, the
// destructor might never be called (especially if we're being
// used from JS.
#ifdef NS_PRINTING
if (mPrintEngine) {
#ifdef NS_PRINT_PREVIEW
bool doingPrintPreview;
mPrintEngine->GetDoingPrintPreview(&doingPrintPreview);
if (doingPrintPreview) {
mPrintEngine->FinishPrintPreview();
}
#endif
mPrintEngine->Destroy();
mPrintEngine = nullptr;
}
#endif
// Avoid leaking the old viewer.
if (mPreviousViewer) {
mPreviousViewer->Destroy();
mPreviousViewer = nullptr;
}
mDeviceContext = nullptr;
if (mPresContext) {
DestroyPresContext();
}
mWindow = nullptr;
mViewManager = nullptr;
mContainer = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::Stop(void)
{
NS_ASSERTION(mDocument, "Stop called too early or too late");
if (mDocument) {
mDocument->StopDocumentLoad();
}
if (!mHidden && (mLoaded || mStopped) && mPresContext && !mSHEntry)
mPresContext->SetImageAnimationMode(imgIContainer::kDontAnimMode);
mStopped = true;
if (!mLoaded && mPresShell) {
// Well, we might as well paint what we have so far.
nsCOMPtr<nsIPresShell> shellDeathGrip(mPresShell); // bug 378682
mPresShell->UnsuppressPainting();
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetDOMDocument(nsIDOMDocument **aResult)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
return CallQueryInterface(mDocument, aResult);
}
NS_IMETHODIMP_(nsIDocument *)
nsDocumentViewer::GetDocument()
{
return mDocument;
}
NS_IMETHODIMP
nsDocumentViewer::SetDOMDocument(nsIDOMDocument *aDocument)
{
// Assumptions:
//
// 1) this document viewer has been initialized with a call to Init().
// 2) the stylesheets associated with the document have been added
// to the document.
// XXX Right now, this method assumes that the layout of the current
// document hasn't started yet. More cleanup will probably be
// necessary to make this method work for the case when layout *has*
// occurred for the current document.
// That work can happen when and if it is needed.
if (!aDocument)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDocument> newDoc = do_QueryInterface(aDocument);
NS_ENSURE_TRUE(newDoc, NS_ERROR_UNEXPECTED);
return SetDocumentInternal(newDoc, false);
}
NS_IMETHODIMP
nsDocumentViewer::SetDocumentInternal(nsIDocument* aDocument,
bool aForceReuseInnerWindow)
{
MOZ_ASSERT(aDocument);
// Set new container
nsCOMPtr<nsISupports> container = do_QueryReferent(mContainer);
aDocument->SetContainer(container);
if (mDocument != aDocument) {
if (mDocument->IsStaticDocument()) {
mDocument->SetScriptGlobalObject(nullptr);
mDocument->Destroy();
}
// Replace the old document with the new one. Do this only when
// the new document really is a new document.
mDocument = aDocument;
// Set the script global object on the new document
nsCOMPtr<nsPIDOMWindow> window = do_GetInterface(container);
if (window) {
window->SetNewDocument(aDocument, nullptr, aForceReuseInnerWindow);
}
// Clear the list of old child docshells. Child docshells for the new
// document will be constructed as frames are created.
if (!aDocument->IsStaticDocument()) {
nsCOMPtr<nsIDocShellTreeNode> node = do_QueryInterface(container);
if (node) {
int32_t count;
node->GetChildCount(&count);
for (int32_t i = 0; i < count; ++i) {
nsCOMPtr<nsIDocShellTreeItem> child;
node->GetChildAt(0, getter_AddRefs(child));
node->RemoveChild(child);
}
}
}
}
nsresult rv = SyncParentSubDocMap();
NS_ENSURE_SUCCESS(rv, rv);
// Replace the current pres shell with a new shell for the new document
if (mPresShell) {
DestroyPresShell();
}
if (mPresContext) {
DestroyPresContext();
mWindow = nullptr;
InitInternal(mParentWidget, nullptr, mBounds, true, true, false);
}
return rv;
}
nsIPresShell*
nsDocumentViewer::GetPresShell()
{
return mPresShell;
}
nsPresContext*
nsDocumentViewer::GetPresContext()
{
return mPresContext;
}
nsViewManager*
nsDocumentViewer::GetViewManager()
{
return mViewManager;
}
NS_IMETHODIMP
nsDocumentViewer::GetPresShell(nsIPresShell** aResult)
{
nsIPresShell* shell = GetPresShell();
NS_IF_ADDREF(*aResult = shell);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetPresContext(nsPresContext** aResult)
{
nsPresContext* pc = GetPresContext();
NS_IF_ADDREF(*aResult = pc);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetBounds(nsIntRect& aResult)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
aResult = mBounds;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetPreviousViewer(nsIContentViewer** aViewer)
{
*aViewer = mPreviousViewer;
NS_IF_ADDREF(*aViewer);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::SetPreviousViewer(nsIContentViewer* aViewer)
{
// NOTE: |Show| sets |mPreviousViewer| to null without calling this
// function.
if (aViewer) {
NS_ASSERTION(!mPreviousViewer,
"can't set previous viewer when there already is one");
// In a multiple chaining situation (which occurs when running a thrashing
// test like i-bench or jrgm's tests with no delay), we can build up a
// whole chain of viewers. In order to avoid this, we always set our previous
// viewer to the MOST previous viewer in the chain, and then dump the intermediate
// link from the chain. This ensures that at most only 2 documents are alive
// and undestroyed at any given time (the one that is showing and the one that
// is loading with painting suppressed).
// It's very important that if this ever gets changed the code
// before the RestorePresentation call in nsDocShell::InternalLoad
// be changed accordingly.
nsCOMPtr<nsIContentViewer> prevViewer;
aViewer->GetPreviousViewer(getter_AddRefs(prevViewer));
if (prevViewer) {
aViewer->SetPreviousViewer(nullptr);
aViewer->Destroy();
return SetPreviousViewer(prevViewer);
}
}
mPreviousViewer = aViewer;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::SetBounds(const nsIntRect& aBounds)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
mBounds = aBounds;
if (mWindow) {
if (!mAttachedToParent) {
// Don't have the widget repaint. Layout will generate repaint requests
// during reflow.
mWindow->Resize(aBounds.x, aBounds.y,
aBounds.width, aBounds.height,
false);
}
} else if (mPresContext && mViewManager) {
int32_t p2a = mPresContext->AppUnitsPerDevPixel();
mViewManager->SetWindowDimensions(NSIntPixelsToAppUnits(mBounds.width, p2a),
NSIntPixelsToAppUnits(mBounds.height, p2a));
}
// If there's a previous viewer, it's the one that's actually showing,
// so be sure to resize it as well so it paints over the right area.
// This may slow down the performance of the new page load, but resize
// during load is also probably a relatively unusual condition
// relating to things being hidden while something is loaded. It so
// happens that Firefox does this a good bit with its infobar, and it
// looks ugly if we don't do this.
if (mPreviousViewer) {
nsCOMPtr<nsIContentViewer> previousViewer = mPreviousViewer;
previousViewer->SetBounds(aBounds);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::Move(int32_t aX, int32_t aY)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
mBounds.MoveTo(aX, aY);
if (mWindow) {
mWindow->Move(aX, aY);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::Show(void)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
// We don't need the previous viewer anymore since we're not
// displaying it.
if (mPreviousViewer) {
// This little dance *may* only be to keep
// PresShell::EndObservingDocument happy, but I'm not sure.
nsCOMPtr<nsIContentViewer> prevViewer(mPreviousViewer);
mPreviousViewer = nullptr;
prevViewer->Destroy();
// Make sure we don't have too many cached ContentViewers
nsCOMPtr<nsIDocShellTreeItem> treeItem = do_QueryReferent(mContainer);
if (treeItem) {
// We need to find the root DocShell since only that object has an
// SHistory and we need the SHistory to evict content viewers
nsCOMPtr<nsIDocShellTreeItem> root;
treeItem->GetSameTypeRootTreeItem(getter_AddRefs(root));
nsCOMPtr<nsIWebNavigation> webNav = do_QueryInterface(root);
nsCOMPtr<nsISHistory> history;
webNav->GetSessionHistory(getter_AddRefs(history));
nsCOMPtr<nsISHistoryInternal> historyInt = do_QueryInterface(history);
if (historyInt) {
int32_t prevIndex,loadedIndex;
nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(treeItem);
docShell->GetPreviousTransIndex(&prevIndex);
docShell->GetLoadedTransIndex(&loadedIndex);
#ifdef DEBUG_PAGE_CACHE
printf("About to evict content viewers: prev=%d, loaded=%d\n",
prevIndex, loadedIndex);
#endif
historyInt->EvictOutOfRangeContentViewers(loadedIndex);
}
}
}
if (mWindow) {
// When attached to a top level xul window, we do not need to call
// Show on the widget. Underlying window management code handles
// this when the window is initialized.
if (!mAttachedToParent) {
mWindow->Show(true);
}
}
if (mDocument && !mPresShell) {
NS_ASSERTION(!mWindow, "Window already created but no presshell?");
nsCOMPtr<nsIBaseWindow> base_win(do_QueryReferent(mContainer));
if (base_win) {
base_win->GetParentWidget(&mParentWidget);
if (mParentWidget) {
mParentWidget->Release(); // GetParentWidget AddRefs, but mParentWidget is weak
}
}
nsView* containerView = FindContainerView();
nsresult rv = CreateDeviceContext(containerView);
NS_ENSURE_SUCCESS(rv, rv);
// Create presentation context
NS_ASSERTION(!mPresContext, "Shouldn't have a prescontext if we have no shell!");
mPresContext = CreatePresContext(mDocument,
nsPresContext::eContext_Galley, containerView);
NS_ENSURE_TRUE(mPresContext, NS_ERROR_OUT_OF_MEMORY);
rv = mPresContext->Init(mDeviceContext);
if (NS_FAILED(rv)) {
mPresContext = nullptr;
return rv;
}
rv = MakeWindow(nsSize(mPresContext->DevPixelsToAppUnits(mBounds.width),
mPresContext->DevPixelsToAppUnits(mBounds.height)),
containerView);
if (NS_FAILED(rv))
return rv;
if (mPresContext && base_win) {
nsCOMPtr<nsILinkHandler> linkHandler(do_GetInterface(base_win));
if (linkHandler) {
mPresContext->SetLinkHandler(linkHandler);
}
mPresContext->SetContainer(base_win);
}
if (mPresContext) {
Hide();
rv = InitPresentationStuff(mDocument->MayStartLayout());
}
// If we get here the document load has already started and the
// window is shown because some JS on the page caused it to be
// shown...
if (mPresShell) {
nsCOMPtr<nsIPresShell> shellDeathGrip(mPresShell); // bug 378682
mPresShell->UnsuppressPainting();
}
}
// Notify observers that a new page has been shown. This will get run
// from the event loop after we actually draw the page.
NS_DispatchToMainThread(new nsDocumentShownDispatcher(mDocument));
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::Hide(void)
{
if (!mAttachedToParent && mWindow) {
mWindow->Show(false);
}
if (!mPresShell)
return NS_OK;
NS_ASSERTION(mPresContext, "Can't have a presshell and no prescontext!");
// Avoid leaking the old viewer.
if (mPreviousViewer) {
mPreviousViewer->Destroy();
mPreviousViewer = nullptr;
}
if (mIsSticky) {
// This window is sticky, that means that it might be shown again
// and we don't want the presshell n' all that to be thrown away
// just because the window is hidden.
return NS_OK;
}
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mContainer));
if (docShell) {
nsCOMPtr<nsILayoutHistoryState> layoutState;
mPresShell->CaptureHistoryState(getter_AddRefs(layoutState));
}
DestroyPresShell();
DestroyPresContext();
mViewManager = nullptr;
mWindow = nullptr;
mDeviceContext = nullptr;
mParentWidget = nullptr;
nsCOMPtr<nsIBaseWindow> base_win(do_QueryReferent(mContainer));
if (base_win && !mAttachedToParent) {
base_win->SetParentWidget(nullptr);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetSticky(bool *aSticky)
{
*aSticky = mIsSticky;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::SetSticky(bool aSticky)
{
mIsSticky = aSticky;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::RequestWindowClose(bool* aCanClose)
{
#ifdef NS_PRINTING
if (mPrintIsPending || (mPrintEngine && mPrintEngine->GetIsPrinting())) {
*aCanClose = false;
mDeferredWindowClose = true;
} else
#endif
*aCanClose = true;
return NS_OK;
}
static bool
AppendAgentSheet(nsIStyleSheet *aSheet, void *aData)
{
nsStyleSet *styleSet = static_cast<nsStyleSet*>(aData);
styleSet->AppendStyleSheet(nsStyleSet::eAgentSheet, aSheet);
return true;
}
static bool
PrependUserSheet(nsIStyleSheet *aSheet, void *aData)
{
nsStyleSet *styleSet = static_cast<nsStyleSet*>(aData);
styleSet->PrependStyleSheet(nsStyleSet::eUserSheet, aSheet);
return true;
}
nsresult
nsDocumentViewer::CreateStyleSet(nsIDocument* aDocument,
nsStyleSet** aStyleSet)
{
// Make sure this does the same thing as PresShell::AddSheet wrt ordering.
// this should eventually get expanded to allow for creating
// different sets for different media
nsStyleSet *styleSet = new nsStyleSet();
styleSet->BeginUpdate();
// The document will fill in the document sheets when we create the presshell
// Handle the user sheets.
nsCSSStyleSheet* sheet = nullptr;
if (nsContentUtils::IsInChromeDocshell(aDocument)) {
sheet = nsLayoutStylesheetCache::UserChromeSheet();
}
else {
sheet = nsLayoutStylesheetCache::UserContentSheet();
}
if (sheet)
styleSet->AppendStyleSheet(nsStyleSet::eUserSheet, sheet);
// Append chrome sheets (scrollbars + forms).
bool shouldOverride = false;
// We don't want a docshell here for external resource docs, so just
// look at mContainer.
nsCOMPtr<nsIDocShell> ds(do_QueryReferent(mContainer));
nsCOMPtr<nsIDOMEventTarget> chromeHandler;
nsCOMPtr<nsIURI> uri;
nsRefPtr<nsCSSStyleSheet> csssheet;
if (ds) {
ds->GetChromeEventHandler(getter_AddRefs(chromeHandler));
}
if (chromeHandler) {
nsCOMPtr<nsIDOMElement> elt(do_QueryInterface(chromeHandler));
nsCOMPtr<nsIContent> content(do_QueryInterface(elt));
if (elt && content) {
nsCOMPtr<nsIURI> baseURI = content->GetBaseURI();
nsAutoString sheets;
elt->GetAttribute(NS_LITERAL_STRING("usechromesheets"), sheets);
if (!sheets.IsEmpty() && baseURI) {
nsRefPtr<mozilla::css::Loader> cssLoader = new mozilla::css::Loader();
char *str = ToNewCString(sheets);
char *newStr = str;
char *token;
while ( (token = nsCRT::strtok(newStr, ", ", &newStr)) ) {
NS_NewURI(getter_AddRefs(uri), nsDependentCString(token), nullptr,
baseURI);
if (!uri) continue;
cssLoader->LoadSheetSync(uri, getter_AddRefs(csssheet));
if (!csssheet) continue;
styleSet->PrependStyleSheet(nsStyleSet::eAgentSheet, csssheet);
shouldOverride = true;
}
nsMemory::Free(str);
}
}
}
if (!shouldOverride) {
sheet = nsLayoutStylesheetCache::ScrollbarsSheet();
if (sheet) {
styleSet->PrependStyleSheet(nsStyleSet::eAgentSheet, sheet);
}
}
sheet = nsLayoutStylesheetCache::FormsSheet();
if (sheet) {
styleSet->PrependStyleSheet(nsStyleSet::eAgentSheet, sheet);
}
sheet = nsLayoutStylesheetCache::FullScreenOverrideSheet();
if (sheet) {
styleSet->PrependStyleSheet(nsStyleSet::eOverrideSheet, sheet);
}
// Make sure to clone the quirk sheet so that it can be usefully
// enabled/disabled as needed.
nsRefPtr<nsCSSStyleSheet> quirkClone;
nsCSSStyleSheet* quirkSheet;
if (!nsLayoutStylesheetCache::UASheet() ||
!(quirkSheet = nsLayoutStylesheetCache::QuirkSheet()) ||
!(quirkClone = quirkSheet->Clone(nullptr, nullptr, nullptr, nullptr)) ||
!sheet) {
delete styleSet;
return NS_ERROR_OUT_OF_MEMORY;
}
// quirk.css needs to come after the regular UA sheet (or more precisely,
// after the html.css and so forth that the UA sheet imports).
styleSet->PrependStyleSheet(nsStyleSet::eAgentSheet, quirkClone);
styleSet->SetQuirkStyleSheet(quirkClone);
styleSet->PrependStyleSheet(nsStyleSet::eAgentSheet,
nsLayoutStylesheetCache::UASheet());
nsStyleSheetService *sheetService = nsStyleSheetService::GetInstance();
if (sheetService) {
sheetService->AgentStyleSheets()->EnumerateForwards(AppendAgentSheet,
styleSet);
sheetService->UserStyleSheets()->EnumerateBackwards(PrependUserSheet,
styleSet);
}
// Caller will handle calling EndUpdate, per contract.
*aStyleSet = styleSet;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::ClearHistoryEntry()
{
mSHEntry = nullptr;
return NS_OK;
}
//-------------------------------------------------------
nsresult
nsDocumentViewer::MakeWindow(const nsSize& aSize, nsView* aContainerView)
{
if (GetIsPrintPreview())
return NS_OK;
bool shouldAttach = ShouldAttachToTopLevel();
if (shouldAttach) {
// If the old view is already attached to our parent, detach
DetachFromTopLevelWidget();
}
mViewManager = new nsViewManager();
nsDeviceContext *dx = mPresContext->DeviceContext();
nsresult rv = mViewManager->Init(dx);
if (NS_FAILED(rv))
return rv;
// The root view is always at 0,0.
nsRect tbounds(nsPoint(0, 0), aSize);
// Create a view
nsView* view = mViewManager->CreateView(tbounds, aContainerView);
if (!view)
return NS_ERROR_OUT_OF_MEMORY;
// Create a widget if we were given a parent widget or don't have a
// container view that we can hook up to without a widget.
// Don't create widgets for ResourceDocs (external resources & svg images),
// because when they're displayed, they're painted into *another* document's
// widget.
if (!mDocument->IsResourceDoc() &&
(mParentWidget || !aContainerView)) {
// pass in a native widget to be the parent widget ONLY if the view hierarchy will stand alone.
// otherwise the view will find its own parent widget and "do the right thing" to
// establish a parent/child widget relationship
nsWidgetInitData initData;
nsWidgetInitData* initDataPtr;
if (!mParentWidget) {
initDataPtr = &initData;
initData.mWindowType = eWindowType_invisible;
} else {
initDataPtr = nullptr;
}
if (shouldAttach) {
// Reuse the top level parent widget.
rv = view->AttachToTopLevelWidget(mParentWidget);
mAttachedToParent = true;
}
else if (!aContainerView && mParentWidget) {
rv = view->CreateWidgetForParent(mParentWidget, initDataPtr,
true, false);
}
else {
rv = view->CreateWidget(initDataPtr, true, false);
}
if (NS_FAILED(rv))
return rv;
}
// Setup hierarchical relationship in view manager
mViewManager->SetRootView(view);
mWindow = view->GetWidget();
// This SetFocus is necessary so the Arrow Key and Page Key events
// go to the scrolled view as soon as the Window is created instead of going to
// the browser window (this enables keyboard scrolling of the document)
// mWindow->SetFocus();
return rv;
}
void
nsDocumentViewer::DetachFromTopLevelWidget()
{
if (mViewManager) {
nsView* oldView = mViewManager->GetRootView();
if (oldView && oldView->IsAttachedToTopLevel()) {
oldView->DetachFromTopLevelWidget();
}
}
mAttachedToParent = false;
}
nsView*
nsDocumentViewer::FindContainerView()
{
nsView* containerView = nullptr;
if (mContainer) {
nsCOMPtr<nsIDocShellTreeItem> docShellItem = do_QueryReferent(mContainer);
nsCOMPtr<nsPIDOMWindow> pwin(do_GetInterface(docShellItem));
if (pwin) {
nsCOMPtr<nsIContent> containerElement = do_QueryInterface(pwin->GetFrameElementInternal());
if (!containerElement) {
return nullptr;
}
nsCOMPtr<nsIPresShell> parentPresShell;
if (docShellItem) {
nsCOMPtr<nsIDocShellTreeItem> parentDocShellItem;
docShellItem->GetParent(getter_AddRefs(parentDocShellItem));
if (parentDocShellItem) {
nsCOMPtr<nsIDocShell> parentDocShell = do_QueryInterface(parentDocShellItem);
parentPresShell = parentDocShell->GetPresShell();
}
}
if (!parentPresShell) {
nsCOMPtr<nsIDocument> parentDoc = containerElement->GetCurrentDoc();
if (parentDoc) {
parentPresShell = parentDoc->GetShell();
}
}
if (!parentPresShell) {
NS_WARNING("Subdocument container has no presshell");
} else {
nsIFrame* f = parentPresShell->GetRealPrimaryFrameFor(containerElement);
if (f) {
nsIFrame* subdocFrame = f->GetContentInsertionFrame();
// subdocFrame might not be a subdocument frame; the frame
// constructor can treat a <frame> as an inline in some XBL
// cases. Treat that as display:none, the document is not
// displayed.
if (subdocFrame->GetType() == nsGkAtoms::subDocumentFrame) {
NS_ASSERTION(subdocFrame->GetView(), "Subdoc frames must have views");
nsView* innerView =
static_cast<nsSubDocumentFrame*>(subdocFrame)->EnsureInnerView();
containerView = innerView;
} else {
NS_WARNING("Subdocument container has non-subdocument frame");
}
} else {
NS_WARNING("Subdocument container has no frame");
}
}
}
}
return containerView;
}
nsresult
nsDocumentViewer::CreateDeviceContext(nsView* aContainerView)
{
NS_PRECONDITION(!mPresShell && !mWindow,
"This will screw up our existing presentation");
NS_PRECONDITION(mDocument, "Gotta have a document here");
nsIDocument* doc = mDocument->GetDisplayDocument();
if (doc) {
NS_ASSERTION(!aContainerView, "External resource document embedded somewhere?");
// We want to use our display document's device context if possible
nsIPresShell* shell = doc->GetShell();
if (shell) {
nsPresContext* ctx = shell->GetPresContext();
if (ctx) {
mDeviceContext = ctx->DeviceContext();
return NS_OK;
}
}
}
// Create a device context even if we already have one, since our widget
// might have changed.
nsIWidget* widget = nullptr;
if (aContainerView) {
widget = aContainerView->GetNearestWidget(nullptr);
}
if (!widget) {
widget = mParentWidget;
}
if (widget) {
widget = widget->GetTopLevelWidget();
}
mDeviceContext = new nsDeviceContext();
mDeviceContext->Init(widget);
return NS_OK;
}
// Return the selection for the document. Note that text fields have their
// own selection, which cannot be accessed with this method.
nsresult nsDocumentViewer::GetDocumentSelection(nsISelection **aSelection)
{
NS_ENSURE_ARG_POINTER(aSelection);
if (!mPresShell) {
return NS_ERROR_NOT_INITIALIZED;
}
nsCOMPtr<nsISelectionController> selcon;
selcon = do_QueryInterface(mPresShell);
if (selcon)
return selcon->GetSelection(nsISelectionController::SELECTION_NORMAL,
aSelection);
return NS_ERROR_FAILURE;
}
/* ========================================================================================
* nsIContentViewerEdit
* ======================================================================================== */
NS_IMETHODIMP nsDocumentViewer::ClearSelection()
{
nsresult rv;
nsCOMPtr<nsISelection> selection;
// use nsCopySupport::GetSelectionForCopy() ?
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
return selection->CollapseToStart();
}
NS_IMETHODIMP nsDocumentViewer::SelectAll()
{
// XXX this is a temporary implementation copied from nsWebShell
// for now. I think nsDocument and friends should have some helper
// functions to make this easier.
nsCOMPtr<nsISelection> selection;
nsresult rv;
// use nsCopySupport::GetSelectionForCopy() ?
rv = GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMHTMLDocument> htmldoc = do_QueryInterface(mDocument);
nsCOMPtr<nsIDOMNode> bodyNode;
if (htmldoc)
{
nsCOMPtr<nsIDOMHTMLElement>bodyElement;
rv = htmldoc->GetBody(getter_AddRefs(bodyElement));
if (NS_FAILED(rv) || !bodyElement) return rv;
bodyNode = do_QueryInterface(bodyElement);
}
else if (mDocument)
{
bodyNode = do_QueryInterface(mDocument->GetRootElement());
}
if (!bodyNode) return NS_ERROR_FAILURE;
rv = selection->RemoveAllRanges();
if (NS_FAILED(rv)) return rv;
rv = selection->SelectAllChildren(bodyNode);
return rv;
}
NS_IMETHODIMP nsDocumentViewer::CopySelection()
{
nsCopySupport::FireClipboardEvent(NS_COPY, mPresShell, nullptr);
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::CopyLinkLocation()
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIDOMNode> node;
GetPopupLinkNode(getter_AddRefs(node));
// make noise if we're not in a link
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
nsCOMPtr<dom::Element> elm(do_QueryInterface(node));
NS_ENSURE_TRUE(elm, NS_ERROR_FAILURE);
nsAutoString locationText;
nsContentUtils::GetLinkLocation(elm, locationText);
if (locationText.IsEmpty())
return NS_ERROR_FAILURE;
nsresult rv = NS_OK;
nsCOMPtr<nsIClipboardHelper> clipboard(do_GetService("@mozilla.org/widget/clipboardhelper;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
// copy the href onto the clipboard
nsCOMPtr<nsIDOMDocument> doc = do_QueryInterface(mDocument);
return clipboard->CopyString(locationText, doc);
}
NS_IMETHODIMP nsDocumentViewer::CopyImage(int32_t aCopyFlags)
{
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
nsCOMPtr<nsIImageLoadingContent> node;
GetPopupImageNode(getter_AddRefs(node));
// make noise if we're not in an image
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
nsCOMPtr<nsILoadContext> loadContext(do_QueryReferent(mContainer));
return nsCopySupport::ImageCopy(node, loadContext, aCopyFlags);
}
NS_IMETHODIMP nsDocumentViewer::GetCopyable(bool *aCopyable)
{
NS_ENSURE_ARG_POINTER(aCopyable);
*aCopyable = nsCopySupport::CanCopy(mDocument);
return NS_OK;
}
/* AString getContents (in string mimeType, in boolean selectionOnly); */
NS_IMETHODIMP nsDocumentViewer::GetContents(const char *mimeType, bool selectionOnly, nsAString& aOutValue)
{
aOutValue.Truncate();
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_INITIALIZED);
// Now we have the selection. Make sure it's nonzero:
nsCOMPtr<nsISelection> sel;
if (selectionOnly) {
nsCopySupport::GetSelectionForCopy(mDocument, getter_AddRefs(sel));
NS_ENSURE_TRUE(sel, NS_ERROR_FAILURE);
bool isCollapsed;
sel->GetIsCollapsed(&isCollapsed);
if (isCollapsed)
return NS_OK;
}
// call the copy code
return nsCopySupport::GetContents(nsDependentCString(mimeType), 0, sel,
mDocument, aOutValue);
}
/* readonly attribute boolean canGetContents; */
NS_IMETHODIMP nsDocumentViewer::GetCanGetContents(bool *aCanGetContents)
{
NS_ENSURE_ARG_POINTER(aCanGetContents);
*aCanGetContents = false;
NS_ENSURE_STATE(mDocument);
*aCanGetContents = nsCopySupport::CanCopy(mDocument);
return NS_OK;
}
/* ========================================================================================
* nsIContentViewerFile
* ======================================================================================== */
/** ---------------------------------------------------
* See documentation above in the nsIContentViewerfile class definition
* @update 01/24/00 dwc
*/
NS_IMETHODIMP
nsDocumentViewer::Print(bool aSilent,
FILE * aDebugFile,
nsIPrintSettings* aPrintSettings)
{
#ifdef NS_PRINTING
nsCOMPtr<nsIPrintSettings> printSettings;
#ifdef DEBUG
nsresult rv = NS_ERROR_FAILURE;
mDebugFile = aDebugFile;
// if they don't pass in a PrintSettings, then make one
// it will have all the default values
printSettings = aPrintSettings;
nsCOMPtr<nsIPrintOptions> printOptions = do_GetService(sPrintOptionsContractID, &rv);
if (NS_SUCCEEDED(rv)) {
// if they don't pass in a PrintSettings, then make one
if (printSettings == nullptr) {
printOptions->CreatePrintSettings(getter_AddRefs(printSettings));
}
NS_ASSERTION(printSettings, "You can't PrintPreview without a PrintSettings!");
}
if (printSettings) printSettings->SetPrintSilent(aSilent);
if (printSettings) printSettings->SetShowPrintProgress(false);
#endif
return Print(printSettings, nullptr);
#else
return NS_ERROR_FAILURE;
#endif
}
/* [noscript] void printWithParent (in nsIDOMWindow aParentWin, in nsIPrintSettings aThePrintSettings, in nsIWebProgressListener aWPListener); */
NS_IMETHODIMP
nsDocumentViewer::PrintWithParent(nsIDOMWindow*, nsIPrintSettings *aThePrintSettings, nsIWebProgressListener *aWPListener)
{
#ifdef NS_PRINTING
return Print(aThePrintSettings, aWPListener);
#else
return NS_ERROR_FAILURE;
#endif
}
// nsIContentViewerFile interface
NS_IMETHODIMP
nsDocumentViewer::GetPrintable(bool *aPrintable)
{
NS_ENSURE_ARG_POINTER(aPrintable);
*aPrintable = !GetIsPrinting();
return NS_OK;
}
//*****************************************************************************
// nsIMarkupDocumentViewer
//*****************************************************************************
NS_IMETHODIMP nsDocumentViewer::ScrollToNode(nsIDOMNode* aNode)
{
NS_ENSURE_ARG(aNode);
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIPresShell> presShell;
NS_ENSURE_SUCCESS(GetPresShell(getter_AddRefs(presShell)), NS_ERROR_FAILURE);
// Get the nsIContent interface, because that's what we need to
// get the primary frame
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
NS_ENSURE_TRUE(content, NS_ERROR_FAILURE);
// Tell the PresShell to scroll to the primary frame of the content.
NS_ENSURE_SUCCESS(
presShell->ScrollContentIntoView(content,
nsIPresShell::ScrollAxis(
nsIPresShell::SCROLL_TOP,
nsIPresShell::SCROLL_ALWAYS),
nsIPresShell::ScrollAxis(),
nsIPresShell::SCROLL_OVERFLOW_HIDDEN),
NS_ERROR_FAILURE);
return NS_OK;
}
void
nsDocumentViewer::CallChildren(CallChildFunc aFunc, void* aClosure)
{
nsCOMPtr<nsIDocShellTreeNode> docShellNode(do_QueryReferent(mContainer));
if (docShellNode)
{
int32_t i;
int32_t n;
docShellNode->GetChildCount(&n);
for (i=0; i < n; i++)
{
nsCOMPtr<nsIDocShellTreeItem> child;
docShellNode->GetChildAt(i, getter_AddRefs(child));
nsCOMPtr<nsIDocShell> childAsShell(do_QueryInterface(child));
NS_ASSERTION(childAsShell, "null child in docshell");
if (childAsShell)
{
nsCOMPtr<nsIContentViewer> childCV;
childAsShell->GetContentViewer(getter_AddRefs(childCV));
if (childCV)
{
nsCOMPtr<nsIMarkupDocumentViewer> markupCV = do_QueryInterface(childCV);
if (markupCV) {
(*aFunc)(markupCV, aClosure);
}
}
}
}
}
}
struct LineBoxInfo
{
nscoord mMaxLineBoxWidth;
};
static void
ChangeChildMaxLineBoxWidth(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
struct LineBoxInfo* lbi = (struct LineBoxInfo*) aClosure;
aChild->ChangeMaxLineBoxWidth(lbi->mMaxLineBoxWidth);
}
struct ZoomInfo
{
float mZoom;
};
static void
SetChildTextZoom(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
struct ZoomInfo* ZoomInfo = (struct ZoomInfo*) aClosure;
aChild->SetTextZoom(ZoomInfo->mZoom);
}
static void
SetChildMinFontSize(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
nsCOMPtr<nsIMarkupDocumentViewer> branch =
do_QueryInterface(aChild);
branch->SetMinFontSize(NS_PTR_TO_INT32(aClosure));
}
static void
SetChildFullZoom(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
struct ZoomInfo* ZoomInfo = (struct ZoomInfo*) aClosure;
aChild->SetFullZoom(ZoomInfo->mZoom);
}
static bool
SetExtResourceTextZoom(nsIDocument* aDocument, void* aClosure)
{
// Would it be better to enumerate external resource viewers instead?
nsIPresShell* shell = aDocument->GetShell();
if (shell) {
nsPresContext* ctxt = shell->GetPresContext();
if (ctxt) {
struct ZoomInfo* ZoomInfo = static_cast<struct ZoomInfo*>(aClosure);
ctxt->SetTextZoom(ZoomInfo->mZoom);
}
}
return true;
}
static bool
SetExtResourceMinFontSize(nsIDocument* aDocument, void* aClosure)
{
nsIPresShell* shell = aDocument->GetShell();
if (shell) {
nsPresContext* ctxt = shell->GetPresContext();
if (ctxt) {
ctxt->SetMinFontSize(NS_PTR_TO_INT32(aClosure));
}
}
return true;
}
static bool
SetExtResourceFullZoom(nsIDocument* aDocument, void* aClosure)
{
// Would it be better to enumerate external resource viewers instead?
nsIPresShell* shell = aDocument->GetShell();
if (shell) {
nsPresContext* ctxt = shell->GetPresContext();
if (ctxt) {
struct ZoomInfo* ZoomInfo = static_cast<struct ZoomInfo*>(aClosure);
ctxt->SetFullZoom(ZoomInfo->mZoom);
}
}
return true;
}
NS_IMETHODIMP
nsDocumentViewer::SetTextZoom(float aTextZoom)
{
// If we don't have a document, then we need to bail.
if (!mDocument) {
return NS_ERROR_FAILURE;
}
if (GetIsPrintPreview()) {
return NS_OK;
}
mTextZoom = aTextZoom;
// Set the text zoom on all children of mContainer (even if our zoom didn't
// change, our children's zoom may be different, though it would be unusual).
// Do this first, in case kids are auto-sizing and post reflow commands on
// our presshell (which should be subsumed into our own style change reflow).
struct ZoomInfo ZoomInfo = { aTextZoom };
CallChildren(SetChildTextZoom, &ZoomInfo);
// Now change our own zoom
nsPresContext* pc = GetPresContext();
if (pc && aTextZoom != mPresContext->TextZoom()) {
pc->SetTextZoom(aTextZoom);
}
// And do the external resources
mDocument->EnumerateExternalResources(SetExtResourceTextZoom, &ZoomInfo);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetTextZoom(float* aTextZoom)
{
NS_ENSURE_ARG_POINTER(aTextZoom);
nsPresContext* pc = GetPresContext();
*aTextZoom = pc ? pc->TextZoom() : 1.0f;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::SetMinFontSize(int32_t aMinFontSize)
{
// If we don't have a document, then we need to bail.
if (!mDocument) {
return NS_ERROR_FAILURE;
}
if (GetIsPrintPreview()) {
return NS_OK;
}
mMinFontSize = aMinFontSize;
// Set the min font on all children of mContainer (even if our min font didn't
// change, our children's min font may be different, though it would be unusual).
// Do this first, in case kids are auto-sizing and post reflow commands on
// our presshell (which should be subsumed into our own style change reflow).
CallChildren(SetChildMinFontSize, NS_INT32_TO_PTR(aMinFontSize));
// Now change our own min font
nsPresContext* pc = GetPresContext();
if (pc && aMinFontSize != mPresContext->MinFontSize(nullptr)) {
pc->SetMinFontSize(aMinFontSize);
}
// And do the external resources
mDocument->EnumerateExternalResources(SetExtResourceMinFontSize,
NS_INT32_TO_PTR(aMinFontSize));
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetMinFontSize(int32_t* aMinFontSize)
{
NS_ENSURE_ARG_POINTER(aMinFontSize);
nsPresContext* pc = GetPresContext();
*aMinFontSize = pc ? pc->MinFontSize(nullptr) : 0;
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::SetFullZoom(float aFullZoom)
{
#ifdef NS_PRINT_PREVIEW
if (GetIsPrintPreview()) {
nsPresContext* pc = GetPresContext();
NS_ENSURE_TRUE(pc, NS_OK);
nsCOMPtr<nsIPresShell> shell = pc->GetPresShell();
NS_ENSURE_TRUE(shell, NS_OK);
if (!mPrintPreviewZoomed) {
mOriginalPrintPreviewScale = pc->GetPrintPreviewScale();
mPrintPreviewZoomed = true;
}
mPrintPreviewZoom = aFullZoom;
pc->SetPrintPreviewScale(aFullZoom * mOriginalPrintPreviewScale);
nsIPageSequenceFrame* pf = shell->GetPageSequenceFrame();
if (pf) {
nsIFrame* f = do_QueryFrame(pf);
shell->FrameNeedsReflow(f, nsIPresShell::eResize, NS_FRAME_IS_DIRTY);
}
nsIFrame* rootFrame = shell->GetRootFrame();
if (rootFrame) {
rootFrame->InvalidateFrame();
}
return NS_OK;
}
#endif
// If we don't have a document, then we need to bail.
if (!mDocument) {
return NS_ERROR_FAILURE;
}
mPageZoom = aFullZoom;
struct ZoomInfo ZoomInfo = { aFullZoom };
CallChildren(SetChildFullZoom, &ZoomInfo);
nsPresContext* pc = GetPresContext();
if (pc) {
pc->SetFullZoom(aFullZoom);
}
// And do the external resources
mDocument->EnumerateExternalResources(SetExtResourceFullZoom, &ZoomInfo);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetFullZoom(float* aFullZoom)
{
NS_ENSURE_ARG_POINTER(aFullZoom);
#ifdef NS_PRINT_PREVIEW
if (GetIsPrintPreview()) {
*aFullZoom = mPrintPreviewZoom;
return NS_OK;
}
#endif
// Check the prescontext first because it might have a temporary
// setting for print-preview
nsPresContext* pc = GetPresContext();
*aFullZoom = pc ? pc->GetFullZoom() : mPageZoom;
return NS_OK;
}
static void
SetChildAuthorStyleDisabled(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
bool styleDisabled = *static_cast<bool*>(aClosure);
aChild->SetAuthorStyleDisabled(styleDisabled);
}
NS_IMETHODIMP
nsDocumentViewer::SetAuthorStyleDisabled(bool aStyleDisabled)
{
if (mPresShell) {
mPresShell->SetAuthorStyleDisabled(aStyleDisabled);
}
CallChildren(SetChildAuthorStyleDisabled, &aStyleDisabled);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetAuthorStyleDisabled(bool* aStyleDisabled)
{
if (mPresShell) {
*aStyleDisabled = mPresShell->GetAuthorStyleDisabled();
} else {
*aStyleDisabled = false;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetDefaultCharacterSet(nsACString& aDefaultCharacterSet)
{
if (mDefaultCharacterSet.IsEmpty())
{
const nsAdoptingCString& defCharset =
Preferences::GetLocalizedCString("intl.charset.default");
// Don't let the user break things by setting intl.charset.default to
// not a rough ASCII superset
nsAutoCString canonical;
if (EncodingUtils::FindEncodingForLabel(defCharset, canonical) &&
EncodingUtils::IsAsciiCompatible(canonical)) {
mDefaultCharacterSet = canonical;
} else {
mDefaultCharacterSet.AssignLiteral("windows-1252");
}
}
aDefaultCharacterSet = mDefaultCharacterSet;
return NS_OK;
}
static void
SetChildDefaultCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
const nsACString* charset = static_cast<nsACString*>(aClosure);
aChild->SetDefaultCharacterSet(*charset);
}
NS_IMETHODIMP
nsDocumentViewer::SetDefaultCharacterSet(const nsACString& aDefaultCharacterSet)
{
mDefaultCharacterSet = aDefaultCharacterSet; // this does a copy of aDefaultCharacterSet
// now set the default char set on all children of mContainer
CallChildren(SetChildDefaultCharacterSet, (void*) &aDefaultCharacterSet);
return NS_OK;
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aForceCharacterSet)
NS_IMETHODIMP nsDocumentViewer::GetForceCharacterSet(nsACString& aForceCharacterSet)
{
aForceCharacterSet = mForceCharacterSet;
return NS_OK;
}
static void
SetChildForceCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
const nsACString* charset = static_cast<nsACString*>(aClosure);
aChild->SetForceCharacterSet(*charset);
}
NS_IMETHODIMP
nsDocumentViewer::SetForceCharacterSet(const nsACString& aForceCharacterSet)
{
mForceCharacterSet = aForceCharacterSet;
// now set the force char set on all children of mContainer
CallChildren(SetChildForceCharacterSet, (void*) &aForceCharacterSet);
return NS_OK;
}
// XXX: SEMANTIC CHANGE!
// returns a copy of the string. Caller is responsible for freeing result
// using Recycle(aHintCharacterSet)
NS_IMETHODIMP nsDocumentViewer::GetHintCharacterSet(nsACString& aHintCharacterSet)
{
if(kCharsetUninitialized == mHintCharsetSource) {
aHintCharacterSet.Truncate();
} else {
aHintCharacterSet = mHintCharset;
// this can't possibly be right. we can't set a value just because somebody got a related value!
//mHintCharsetSource = kCharsetUninitialized;
}
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetHintCharacterSetSource(int32_t *aHintCharacterSetSource)
{
NS_ENSURE_ARG_POINTER(aHintCharacterSetSource);
*aHintCharacterSetSource = mHintCharsetSource;
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetPrevDocCharacterSet(nsACString& aPrevDocCharacterSet)
{
aPrevDocCharacterSet = mPrevDocCharacterSet;
return NS_OK;
}
static void
SetChildPrevDocCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
const nsACString* charset = static_cast<nsACString*>(aClosure);
aChild->SetPrevDocCharacterSet(*charset);
}
NS_IMETHODIMP
nsDocumentViewer::SetPrevDocCharacterSet(const nsACString& aPrevDocCharacterSet)
{
mPrevDocCharacterSet = aPrevDocCharacterSet;
CallChildren(SetChildPrevDocCharacterSet, (void*) &aPrevDocCharacterSet);
return NS_OK;
}
static void
SetChildHintCharacterSetSource(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetHintCharacterSetSource(NS_PTR_TO_INT32(aClosure));
}
NS_IMETHODIMP
nsDocumentViewer::SetHintCharacterSetSource(int32_t aHintCharacterSetSource)
{
mHintCharsetSource = aHintCharacterSetSource;
// now set the hint char set source on all children of mContainer
CallChildren(SetChildHintCharacterSetSource,
NS_INT32_TO_PTR(aHintCharacterSetSource));
return NS_OK;
}
static void
SetChildHintCharacterSet(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
const nsACString* charset = static_cast<nsACString*>(aClosure);
aChild->SetHintCharacterSet(*charset);
}
NS_IMETHODIMP
nsDocumentViewer::SetHintCharacterSet(const nsACString& aHintCharacterSet)
{
mHintCharset = aHintCharacterSet;
// now set the hint char set on all children of mContainer
CallChildren(SetChildHintCharacterSet, (void*) &aHintCharacterSet);
return NS_OK;
}
static void
SetChildBidiOptions(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
aChild->SetBidiOptions(NS_PTR_TO_INT32(aClosure));
}
NS_IMETHODIMP nsDocumentViewer::SetBidiTextDirection(uint8_t aTextDirection)
{
uint32_t bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_DIRECTION(bidiOptions, aTextDirection);
SetBidiOptions(bidiOptions);
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetBidiTextDirection(uint8_t* aTextDirection)
{
uint32_t bidiOptions;
if (aTextDirection) {
GetBidiOptions(&bidiOptions);
*aTextDirection = GET_BIDI_OPTION_DIRECTION(bidiOptions);
}
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::SetBidiTextType(uint8_t aTextType)
{
uint32_t bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_TEXTTYPE(bidiOptions, aTextType);
SetBidiOptions(bidiOptions);
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetBidiTextType(uint8_t* aTextType)
{
uint32_t bidiOptions;
if (aTextType) {
GetBidiOptions(&bidiOptions);
*aTextType = GET_BIDI_OPTION_TEXTTYPE(bidiOptions);
}
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::SetBidiNumeral(uint8_t aNumeral)
{
uint32_t bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_NUMERAL(bidiOptions, aNumeral);
SetBidiOptions(bidiOptions);
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetBidiNumeral(uint8_t* aNumeral)
{
uint32_t bidiOptions;
if (aNumeral) {
GetBidiOptions(&bidiOptions);
*aNumeral = GET_BIDI_OPTION_NUMERAL(bidiOptions);
}
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::SetBidiSupport(uint8_t aSupport)
{
uint32_t bidiOptions;
GetBidiOptions(&bidiOptions);
SET_BIDI_OPTION_SUPPORT(bidiOptions, aSupport);
SetBidiOptions(bidiOptions);
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetBidiSupport(uint8_t* aSupport)
{
uint32_t bidiOptions;
if (aSupport) {
GetBidiOptions(&bidiOptions);
*aSupport = GET_BIDI_OPTION_SUPPORT(bidiOptions);
}
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::SetBidiOptions(uint32_t aBidiOptions)
{
if (mPresContext) {
mPresContext->SetBidi(aBidiOptions, true); // could cause reflow
}
// now set bidi on all children of mContainer
CallChildren(SetChildBidiOptions, NS_INT32_TO_PTR(aBidiOptions));
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetBidiOptions(uint32_t* aBidiOptions)
{
if (aBidiOptions) {
if (mPresContext) {
*aBidiOptions = mPresContext->GetBidi();
}
else
*aBidiOptions = IBMBIDI_DEFAULT_BIDI_OPTIONS;
}
return NS_OK;
}
static void
AppendChildSubtree(nsIMarkupDocumentViewer* aChild, void* aClosure)
{
nsTArray<nsCOMPtr<nsIMarkupDocumentViewer> >& array =
*static_cast<nsTArray<nsCOMPtr<nsIMarkupDocumentViewer> >*>(aClosure);
aChild->AppendSubtree(array);
}
NS_IMETHODIMP nsDocumentViewer::AppendSubtree(nsTArray<nsCOMPtr<nsIMarkupDocumentViewer> >& aArray)
{
aArray.AppendElement(this);
CallChildren(AppendChildSubtree, &aArray);
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::ChangeMaxLineBoxWidth(int32_t aMaxLineBoxWidth)
{
// Change the max line box width for all children.
struct LineBoxInfo lbi = { aMaxLineBoxWidth };
CallChildren(ChangeChildMaxLineBoxWidth, &lbi);
// Now, change our max line box width.
// Convert to app units, since our input is in CSS pixels.
nscoord mlbw = nsPresContext::CSSPixelsToAppUnits(aMaxLineBoxWidth);
nsIPresShell* presShell = GetPresShell();
if (presShell) {
presShell->SetMaxLineBoxWidth(mlbw);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetContentSize(int32_t* aWidth, int32_t* aHeight)
{
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
// Skip doing this on docshell-less documents for now
nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryReferent(mContainer));
NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIDocShellTreeItem> docShellParent;
docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));
// It's only valid to access this from a top frame. Doesn't work from
// sub-frames.
NS_ENSURE_TRUE(!docShellParent, NS_ERROR_FAILURE);
nsCOMPtr<nsIPresShell> presShell;
GetPresShell(getter_AddRefs(presShell));
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
// Flush out all content and style updates. We can't use a resize reflow
// because it won't change some sizes that a style change reflow will.
mDocument->FlushPendingNotifications(Flush_Layout);
nsIFrame *root = presShell->GetRootFrame();
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
nscoord prefWidth;
{
nsRefPtr<nsRenderingContext> rcx =
presShell->GetReferenceRenderingContext();
NS_ENSURE_TRUE(rcx, NS_ERROR_FAILURE);
prefWidth = root->GetPrefWidth(rcx);
}
nsresult rv = presShell->ResizeReflow(prefWidth, NS_UNCONSTRAINEDSIZE);
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<nsPresContext> presContext;
GetPresContext(getter_AddRefs(presContext));
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
// so how big is it?
nsRect shellArea = presContext->GetVisibleArea();
// Protect against bogus returns here
NS_ENSURE_TRUE(shellArea.width != NS_UNCONSTRAINEDSIZE &&
shellArea.height != NS_UNCONSTRAINEDSIZE,
NS_ERROR_FAILURE);
*aWidth = presContext->AppUnitsToDevPixels(shellArea.width);
*aHeight = presContext->AppUnitsToDevPixels(shellArea.height);
return NS_OK;
}
NS_IMPL_ISUPPORTS1(nsDocViewerSelectionListener, nsISelectionListener)
nsresult nsDocViewerSelectionListener::Init(nsDocumentViewer *aDocViewer)
{
mDocViewer = aDocViewer;
return NS_OK;
}
/*
* GetPopupNode, GetPopupLinkNode and GetPopupImageNode are helpers
* for the cmd_copyLink / cmd_copyImageLocation / cmd_copyImageContents family
* of commands. The focus controller stores the popup node, these retrieve
* them and munge appropriately. Note that we have to store the popup node
* rather than retrieving it from EventStateManager::GetFocusedContent because
* not all content (images included) can receive focus.
*/
nsresult
nsDocumentViewer::GetPopupNode(nsIDOMNode** aNode)
{
NS_ENSURE_ARG_POINTER(aNode);
*aNode = nullptr;
// get the document
nsIDocument* document = GetDocument();
NS_ENSURE_TRUE(document, NS_ERROR_FAILURE);
// get the private dom window
nsCOMPtr<nsPIDOMWindow> window(document->GetWindow());
NS_ENSURE_TRUE(window, NS_ERROR_NOT_AVAILABLE);
if (window) {
nsCOMPtr<nsPIWindowRoot> root = window->GetTopWindowRoot();
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
// get the popup node
nsCOMPtr<nsIDOMNode> node = root->GetPopupNode();
#ifdef MOZ_XUL
if (!node) {
nsPIDOMWindow* rootWindow = root->GetWindow();
if (rootWindow) {
nsCOMPtr<nsIDocument> rootDoc = rootWindow->GetExtantDoc();
if (rootDoc) {
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (pm) {
node = pm->GetLastTriggerPopupNode(rootDoc);
}
}
}
}
#endif
node.swap(*aNode);
}
return NS_OK;
}
// GetPopupLinkNode: return popup link node or fail
nsresult
nsDocumentViewer::GetPopupLinkNode(nsIDOMNode** aNode)
{
NS_ENSURE_ARG_POINTER(aNode);
// you get null unless i say so
*aNode = nullptr;
// find popup node
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupNode(getter_AddRefs(node));
NS_ENSURE_SUCCESS(rv, rv);
// find out if we have a link in our ancestry
while (node) {
nsCOMPtr<nsIContent> content(do_QueryInterface(node));
if (content) {
nsCOMPtr<nsIURI> hrefURI = content->GetHrefURI();
if (hrefURI) {
*aNode = node;
NS_IF_ADDREF(*aNode); // addref
return NS_OK;
}
}
// get our parent and keep trying...
nsCOMPtr<nsIDOMNode> parentNode;
node->GetParentNode(getter_AddRefs(parentNode));
node = parentNode;
}
// if we have no node, fail
return NS_ERROR_FAILURE;
}
// GetPopupLinkNode: return popup image node or fail
nsresult
nsDocumentViewer::GetPopupImageNode(nsIImageLoadingContent** aNode)
{
NS_ENSURE_ARG_POINTER(aNode);
// you get null unless i say so
*aNode = nullptr;
// find popup node
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupNode(getter_AddRefs(node));
NS_ENSURE_SUCCESS(rv, rv);
if (node)
CallQueryInterface(node, aNode);
return NS_OK;
}
/*
* XXX dr
* ------
* These two functions -- GetInLink and GetInImage -- are kind of annoying
* in that they only get called from the controller (in
* nsDOMWindowController::IsCommandEnabled). The actual construction of the
* context menus in communicator (nsContextMenu.js) has its own, redundant
* tests. No big deal, but good to keep in mind if we ever clean context
* menus.
*/
NS_IMETHODIMP nsDocumentViewer::GetInLink(bool* aInLink)
{
#ifdef DEBUG_dr
printf("dr :: nsDocumentViewer::GetInLink\n");
#endif
NS_ENSURE_ARG_POINTER(aInLink);
// we're not in a link unless i say so
*aInLink = false;
// get the popup link
nsCOMPtr<nsIDOMNode> node;
nsresult rv = GetPopupLinkNode(getter_AddRefs(node));
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
// if we made it here, we're in a link
*aInLink = true;
return NS_OK;
}
NS_IMETHODIMP nsDocumentViewer::GetInImage(bool* aInImage)
{
#ifdef DEBUG_dr
printf("dr :: nsDocumentViewer::GetInImage\n");
#endif
NS_ENSURE_ARG_POINTER(aInImage);
// we're not in an image unless i say so
*aInImage = false;
// get the popup image
nsCOMPtr<nsIImageLoadingContent> node;
nsresult rv = GetPopupImageNode(getter_AddRefs(node));
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
// if we made it here, we're in an image
*aInImage = true;
return NS_OK;
}
NS_IMETHODIMP nsDocViewerSelectionListener::NotifySelectionChanged(nsIDOMDocument *, nsISelection *, int16_t)
{
NS_ASSERTION(mDocViewer, "Should have doc viewer!");
// get the selection state
nsCOMPtr<nsISelection> selection;
nsresult rv = mDocViewer->GetDocumentSelection(getter_AddRefs(selection));
if (NS_FAILED(rv)) return rv;
bool selectionCollapsed;
selection->GetIsCollapsed(&selectionCollapsed);
// we only call UpdateCommands when the selection changes from collapsed
// to non-collapsed or vice versa. We might need another update string
// for simple selection changes, but that would be expenseive.
if (!mGotSelectionState || mSelectionWasCollapsed != selectionCollapsed)
{
nsIDocument* theDoc = mDocViewer->GetDocument();
if (!theDoc) return NS_ERROR_FAILURE;
nsPIDOMWindow *domWindow = theDoc->GetWindow();
if (!domWindow) return NS_ERROR_FAILURE;
domWindow->UpdateCommands(NS_LITERAL_STRING("select"));
mGotSelectionState = true;
mSelectionWasCollapsed = selectionCollapsed;
}
return NS_OK;
}
//nsDocViewerFocusListener
NS_IMPL_ISUPPORTS1(nsDocViewerFocusListener,
nsIDOMEventListener)
nsDocViewerFocusListener::nsDocViewerFocusListener()
:mDocViewer(nullptr)
{
}
nsDocViewerFocusListener::~nsDocViewerFocusListener(){}
nsresult
nsDocViewerFocusListener::HandleEvent(nsIDOMEvent* aEvent)
{
NS_ENSURE_STATE(mDocViewer);
nsCOMPtr<nsIPresShell> shell;
mDocViewer->GetPresShell(getter_AddRefs(shell));
NS_ENSURE_TRUE(shell, NS_ERROR_FAILURE);
nsCOMPtr<nsISelectionController> selCon = do_QueryInterface(shell);
int16_t selectionStatus;
selCon->GetDisplaySelection(&selectionStatus);
nsAutoString eventType;
aEvent->GetType(eventType);
if (eventType.EqualsLiteral("focus")) {
// If selection was disabled, re-enable it.
if(selectionStatus == nsISelectionController::SELECTION_DISABLED ||
selectionStatus == nsISelectionController::SELECTION_HIDDEN) {
selCon->SetDisplaySelection(nsISelectionController::SELECTION_ON);
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
}
} else {
NS_ABORT_IF_FALSE(eventType.EqualsLiteral("blur"),
"Unexpected event type");
// If selection was on, disable it.
if(selectionStatus == nsISelectionController::SELECTION_ON ||
selectionStatus == nsISelectionController::SELECTION_ATTENTION) {
selCon->SetDisplaySelection(nsISelectionController::SELECTION_DISABLED);
selCon->RepaintSelection(nsISelectionController::SELECTION_NORMAL);
}
}
return NS_OK;
}
nsresult
nsDocViewerFocusListener::Init(nsDocumentViewer *aDocViewer)
{
mDocViewer = aDocViewer;
return NS_OK;
}
/** ---------------------------------------------------
* From nsIWebBrowserPrint
*/
#ifdef NS_PRINTING
NS_IMETHODIMP
nsDocumentViewer::Print(nsIPrintSettings* aPrintSettings,
nsIWebProgressListener* aWebProgressListener)
{
#ifdef MOZ_XUL
// Temporary code for Bug 136185 / Bug 240490
nsCOMPtr<nsIXULDocument> xulDoc(do_QueryInterface(mDocument));
if (xulDoc) {
nsPrintEngine::ShowPrintErrorDialog(NS_ERROR_GFX_PRINTER_NO_XUL);
return NS_ERROR_FAILURE;
}
#endif
if (!mContainer) {
PR_PL(("Container was destroyed yet we are still trying to use it!"));
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mContainer));
NS_ENSURE_STATE(docShell);
// Check to see if this document is still busy
// If it is busy and we aren't already "queued" up to print then
// Indicate there is a print pending and cache the args for later
uint32_t busyFlags = nsIDocShell::BUSY_FLAGS_NONE;
if ((NS_FAILED(docShell->GetBusyFlags(&busyFlags)) ||
(busyFlags != nsIDocShell::BUSY_FLAGS_NONE && busyFlags & nsIDocShell::BUSY_FLAGS_PAGE_LOADING)) &&
!mPrintDocIsFullyLoaded) {
if (!mPrintIsPending) {
mCachedPrintSettings = aPrintSettings;
mCachedPrintWebProgressListner = aWebProgressListener;
mPrintIsPending = true;
}
PR_PL(("Printing Stopped - document is still busy!"));
return NS_ERROR_GFX_PRINTER_DOC_IS_BUSY;
}
if (!mDocument || !mDeviceContext) {
PR_PL(("Can't Print without a document and a device context"));
return NS_ERROR_FAILURE;
}
nsresult rv;
// if we are printing another URL, then exit
// the reason we check here is because this method can be called while
// another is still in here (the printing dialog is a good example).
// the only time we can print more than one job at a time is the regression tests
if (GetIsPrinting()) {
// Let the user know we are not ready to print.
rv = NS_ERROR_NOT_AVAILABLE;
nsPrintEngine::ShowPrintErrorDialog(rv);
return rv;
}
nsAutoPtr<nsPrintEventDispatcher> beforeAndAfterPrint(
new nsPrintEventDispatcher(mDocument));
NS_ENSURE_STATE(!GetIsPrinting());
// If we are hosting a full-page plugin, tell it to print
// first. It shows its own native print UI.
nsCOMPtr<nsIPluginDocument> pDoc(do_QueryInterface(mDocument));
if (pDoc)
return pDoc->Print();
if (!mPrintEngine) {
NS_ENSURE_STATE(mDeviceContext);
mPrintEngine = new nsPrintEngine();
rv = mPrintEngine->Initialize(this, mContainer, mDocument,
float(mDeviceContext->AppUnitsPerCSSInch()) /
float(mDeviceContext->AppUnitsPerDevPixel()) /
mPageZoom,
#ifdef DEBUG
mDebugFile
#else
nullptr
#endif
);
if (NS_FAILED(rv)) {
mPrintEngine->Destroy();
mPrintEngine = nullptr;
return rv;
}
}
if (mPrintEngine->HasPrintCallbackCanvas()) {
mBeforeAndAfterPrint = beforeAndAfterPrint;
}
dom::Element* root = mDocument->GetRootElement();
if (root && root->HasAttr(kNameSpaceID_None, nsGkAtoms::mozdisallowselectionprint)) {
mPrintEngine->SetDisallowSelectionPrint(true);
}
if (root && root->HasAttr(kNameSpaceID_None, nsGkAtoms::moznomarginboxes)) {
mPrintEngine->SetNoMarginBoxes(true);
}
rv = mPrintEngine->Print(aPrintSettings, aWebProgressListener);
if (NS_FAILED(rv)) {
OnDonePrinting();
}
return rv;
}
NS_IMETHODIMP
nsDocumentViewer::PrintPreview(nsIPrintSettings* aPrintSettings,
nsIDOMWindow *aChildDOMWin,
nsIWebProgressListener* aWebProgressListener)
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
NS_WARN_IF_FALSE(IsInitializedForPrintPreview(),
"Using docshell.printPreview is the preferred way for print previewing!");
NS_ENSURE_ARG_POINTER(aChildDOMWin);
nsresult rv = NS_OK;
if (GetIsPrinting()) {
nsPrintEngine::CloseProgressDialog(aWebProgressListener);
return NS_ERROR_FAILURE;
}
#ifdef MOZ_XUL
// Temporary code for Bug 136185 / Bug 240490
nsCOMPtr<nsIXULDocument> xulDoc(do_QueryInterface(mDocument));
if (xulDoc) {
nsPrintEngine::CloseProgressDialog(aWebProgressListener);
nsPrintEngine::ShowPrintErrorDialog(NS_ERROR_GFX_PRINTER_NO_XUL, false);
return NS_ERROR_FAILURE;
}
#endif
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mContainer));
if (!docShell || !mDeviceContext) {
PR_PL(("Can't Print Preview without device context and docshell"));
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDOMDocument> domDoc;
aChildDOMWin->GetDocument(getter_AddRefs(domDoc));
nsCOMPtr<nsIDocument> doc = do_QueryInterface(domDoc);
NS_ENSURE_STATE(doc);
nsAutoPtr<nsPrintEventDispatcher> beforeAndAfterPrint(
new nsPrintEventDispatcher(doc));
NS_ENSURE_STATE(!GetIsPrinting());
if (!mPrintEngine) {
mPrintEngine = new nsPrintEngine();
rv = mPrintEngine->Initialize(this, mContainer, doc,
float(mDeviceContext->AppUnitsPerCSSInch()) /
float(mDeviceContext->AppUnitsPerDevPixel()) /
mPageZoom,
#ifdef DEBUG
mDebugFile
#else
nullptr
#endif
);
if (NS_FAILED(rv)) {
mPrintEngine->Destroy();
mPrintEngine = nullptr;
return rv;
}
}
if (mPrintEngine->HasPrintCallbackCanvas()) {
mBeforeAndAfterPrint = beforeAndAfterPrint;
}
rv = mPrintEngine->PrintPreview(aPrintSettings, aChildDOMWin, aWebProgressListener);
mPrintPreviewZoomed = false;
if (NS_FAILED(rv)) {
OnDonePrinting();
}
return rv;
#else
return NS_ERROR_FAILURE;
#endif
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsDocumentViewer::PrintPreviewNavigate(int16_t aType, int32_t aPageNum)
{
if (!GetIsPrintPreview() ||
mPrintEngine->GetIsCreatingPrintPreview())
return NS_ERROR_FAILURE;
nsIScrollableFrame* sf =
mPrintEngine->GetPrintPreviewPresShell()->GetRootScrollFrameAsScrollable();
if (!sf)
return NS_OK;
// Check to see if we can short circut scrolling to the top
if (aType == nsIWebBrowserPrint::PRINTPREVIEW_HOME ||
(aType == nsIWebBrowserPrint::PRINTPREVIEW_GOTO_PAGENUM && aPageNum == 1)) {
sf->ScrollTo(nsPoint(0, 0), nsIScrollableFrame::INSTANT);
return NS_OK;
}
// Finds the SimplePageSequencer frame
// in PP mPrtPreview->mPrintObject->mSeqFrame is null
nsIFrame* seqFrame = nullptr;
int32_t pageCount = 0;
if (NS_FAILED(mPrintEngine->GetSeqFrameAndCountPages(seqFrame, pageCount))) {
return NS_ERROR_FAILURE;
}
// Figure where we are currently scrolled to
nsPoint pt = sf->GetScrollPosition();
int32_t pageNum = 1;
nsIFrame * fndPageFrame = nullptr;
nsIFrame * currentPage = nullptr;
// If it is "End" then just do a "goto" to the last page
if (aType == nsIWebBrowserPrint::PRINTPREVIEW_END) {
aType = nsIWebBrowserPrint::PRINTPREVIEW_GOTO_PAGENUM;
aPageNum = pageCount;
}
// Now, locate the current page we are on and
// and the page of the page number
nsIFrame* pageFrame = seqFrame->GetFirstPrincipalChild();
while (pageFrame != nullptr) {
nsRect pageRect = pageFrame->GetRect();
if (pageRect.Contains(pageRect.x, pt.y)) {
currentPage = pageFrame;
}
if (pageNum == aPageNum) {
fndPageFrame = pageFrame;
break;
}
pageNum++;
pageFrame = pageFrame->GetNextSibling();
}
if (aType == nsIWebBrowserPrint::PRINTPREVIEW_PREV_PAGE) {
if (currentPage) {
fndPageFrame = currentPage->GetPrevInFlow();
if (!fndPageFrame) {
return NS_OK;
}
} else {
return NS_OK;
}
} else if (aType == nsIWebBrowserPrint::PRINTPREVIEW_NEXT_PAGE) {
if (currentPage) {
fndPageFrame = currentPage->GetNextInFlow();
if (!fndPageFrame) {
return NS_OK;
}
} else {
return NS_OK;
}
} else { // If we get here we are doing "GoTo"
if (aPageNum < 0 || aPageNum > pageCount) {
return NS_OK;
}
}
if (fndPageFrame) {
nscoord newYPosn =
nscoord(mPrintEngine->GetPrintPreviewScale() * fndPageFrame->GetPosition().y);
sf->ScrollTo(nsPoint(pt.x, newYPosn), nsIScrollableFrame::INSTANT);
}
return NS_OK;
}
/* readonly attribute nsIPrintSettings globalPrintSettings; */
NS_IMETHODIMP
nsDocumentViewer::GetGlobalPrintSettings(nsIPrintSettings * *aGlobalPrintSettings)
{
return nsPrintEngine::GetGlobalPrintSettings(aGlobalPrintSettings);
}
/* readonly attribute boolean doingPrint; */
// XXX This always returns false for subdocuments
NS_IMETHODIMP
nsDocumentViewer::GetDoingPrint(bool *aDoingPrint)
{
NS_ENSURE_ARG_POINTER(aDoingPrint);
*aDoingPrint = false;
if (mPrintEngine) {
// XXX shouldn't this be GetDoingPrint() ?
return mPrintEngine->GetDoingPrintPreview(aDoingPrint);
}
return NS_OK;
}
/* readonly attribute boolean doingPrintPreview; */
// XXX This always returns false for subdocuments
NS_IMETHODIMP
nsDocumentViewer::GetDoingPrintPreview(bool *aDoingPrintPreview)
{
NS_ENSURE_ARG_POINTER(aDoingPrintPreview);
*aDoingPrintPreview = false;
if (mPrintEngine) {
return mPrintEngine->GetDoingPrintPreview(aDoingPrintPreview);
}
return NS_OK;
}
/* readonly attribute nsIPrintSettings currentPrintSettings; */
NS_IMETHODIMP
nsDocumentViewer::GetCurrentPrintSettings(nsIPrintSettings * *aCurrentPrintSettings)
{
NS_ENSURE_ARG_POINTER(aCurrentPrintSettings);
*aCurrentPrintSettings = nullptr;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetCurrentPrintSettings(aCurrentPrintSettings);
}
/* readonly attribute nsIDOMWindow currentChildDOMWindow; */
NS_IMETHODIMP
nsDocumentViewer::GetCurrentChildDOMWindow(nsIDOMWindow * *aCurrentChildDOMWindow)
{
NS_ENSURE_ARG_POINTER(aCurrentChildDOMWindow);
*aCurrentChildDOMWindow = nullptr;
return NS_ERROR_NOT_IMPLEMENTED;
}
/* void cancel (); */
NS_IMETHODIMP
nsDocumentViewer::Cancel()
{
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->Cancelled();
}
/* void exitPrintPreview (); */
NS_IMETHODIMP
nsDocumentViewer::ExitPrintPreview()
{
if (GetIsPrinting())
return NS_ERROR_FAILURE;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
if (GetIsPrintPreview()) {
ReturnToGalleyPresentation();
}
return NS_OK;
}
//----------------------------------------------------------------------------------
// Enumerate all the documents for their titles
NS_IMETHODIMP
nsDocumentViewer::EnumerateDocumentNames(uint32_t* aCount,
PRUnichar*** aResult)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG(aCount);
NS_ENSURE_ARG_POINTER(aResult);
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->EnumerateDocumentNames(aCount, aResult);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isFramesetFrameSelected; */
NS_IMETHODIMP
nsDocumentViewer::GetIsFramesetFrameSelected(bool *aIsFramesetFrameSelected)
{
#ifdef NS_PRINTING
*aIsFramesetFrameSelected = false;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsFramesetFrameSelected(aIsFramesetFrameSelected);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute long printPreviewNumPages; */
NS_IMETHODIMP
nsDocumentViewer::GetPrintPreviewNumPages(int32_t *aPrintPreviewNumPages)
{
#ifdef NS_PRINTING
NS_ENSURE_ARG_POINTER(aPrintPreviewNumPages);
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetPrintPreviewNumPages(aPrintPreviewNumPages);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isFramesetDocument; */
NS_IMETHODIMP
nsDocumentViewer::GetIsFramesetDocument(bool *aIsFramesetDocument)
{
#ifdef NS_PRINTING
*aIsFramesetDocument = false;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsFramesetDocument(aIsFramesetDocument);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isIFrameSelected; */
NS_IMETHODIMP
nsDocumentViewer::GetIsIFrameSelected(bool *aIsIFrameSelected)
{
#ifdef NS_PRINTING
*aIsIFrameSelected = false;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsIFrameSelected(aIsIFrameSelected);
#else
return NS_ERROR_FAILURE;
#endif
}
/* readonly attribute boolean isRangeSelection; */
NS_IMETHODIMP
nsDocumentViewer::GetIsRangeSelection(bool *aIsRangeSelection)
{
#ifdef NS_PRINTING
*aIsRangeSelection = false;
NS_ENSURE_TRUE(mPrintEngine, NS_ERROR_FAILURE);
return mPrintEngine->GetIsRangeSelection(aIsRangeSelection);
#else
return NS_ERROR_FAILURE;
#endif
}
//----------------------------------------------------------------------------------
// Printing/Print Preview Helpers
//----------------------------------------------------------------------------------
//----------------------------------------------------------------------------------
// Walks the document tree and tells each DocShell whether Printing/PP is happening
void
nsDocumentViewer::SetIsPrintingInDocShellTree(nsIDocShellTreeNode* aParentNode,
bool aIsPrintingOrPP,
bool aStartAtTop)
{
nsCOMPtr<nsIDocShellTreeItem> parentItem(do_QueryInterface(aParentNode));
// find top of "same parent" tree
if (aStartAtTop) {
if (aIsPrintingOrPP) {
while (parentItem) {
nsCOMPtr<nsIDocShellTreeItem> parent;
parentItem->GetSameTypeParent(getter_AddRefs(parent));
if (!parent) {
break;
}
parentItem = do_QueryInterface(parent);
}
mTopContainerWhilePrinting = do_GetWeakReference(parentItem);
} else {
parentItem = do_QueryReferent(mTopContainerWhilePrinting);
}
}
// Check to see if the DocShell's ContentViewer is printing/PP
nsCOMPtr<nsIContentViewerContainer> viewerContainer(do_QueryInterface(parentItem));
if (viewerContainer) {
viewerContainer->SetIsPrinting(aIsPrintingOrPP);
}
if (!aParentNode) {
return;
}
// Traverse children to see if any of them are printing.
int32_t n;
aParentNode->GetChildCount(&n);
for (int32_t i=0; i < n; i++) {
nsCOMPtr<nsIDocShellTreeItem> child;
aParentNode->GetChildAt(i, getter_AddRefs(child));
nsCOMPtr<nsIDocShellTreeNode> childAsNode(do_QueryInterface(child));
NS_ASSERTION(childAsNode, "child isn't nsIDocShellTreeNode");
if (childAsNode) {
SetIsPrintingInDocShellTree(childAsNode, aIsPrintingOrPP, false);
}
}
}
#endif // NS_PRINTING
bool
nsDocumentViewer::ShouldAttachToTopLevel()
{
if (!mParentWidget)
return false;
nsCOMPtr<nsIDocShellTreeItem> containerItem = do_QueryReferent(mContainer);
if (!containerItem)
return false;
// We always attach when using puppet widgets
if (nsIWidget::UsePuppetWidgets())
return true;
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
// On windows, in the parent process we also attach, but just to
// chrome items
int32_t docType;
nsWindowType winType;
containerItem->GetItemType(&docType);
mParentWidget->GetWindowType(winType);
if ((winType == eWindowType_toplevel ||
winType == eWindowType_dialog ||
winType == eWindowType_invisible) &&
docType == nsIDocShellTreeItem::typeChrome)
return true;
#endif
return false;
}
bool CollectDocuments(nsIDocument* aDocument, void* aData)
{
if (aDocument) {
static_cast<nsCOMArray<nsIDocument>*>(aData)->AppendObject(aDocument);
aDocument->EnumerateSubDocuments(CollectDocuments, aData);
}
return true;
}
void
nsDocumentViewer::DispatchEventToWindowTree(nsIDocument* aDoc,
const nsAString& aEvent)
{
nsCOMArray<nsIDocument> targets;
CollectDocuments(aDoc, &targets);
for (int32_t i = 0; i < targets.Count(); ++i) {
nsIDocument* d = targets[i];
nsContentUtils::DispatchTrustedEvent(d, d->GetWindow(),
aEvent, false, false, nullptr);
}
}
//------------------------------------------------------------
// XXX this always returns false for subdocuments
bool
nsDocumentViewer::GetIsPrinting()
{
#ifdef NS_PRINTING
if (mPrintEngine) {
return mPrintEngine->GetIsPrinting();
}
#endif
return false;
}
//------------------------------------------------------------
// Notification from the PrintEngine of the current Printing status
void
nsDocumentViewer::SetIsPrinting(bool aIsPrinting)
{
#ifdef NS_PRINTING
// Set all the docShells in the docshell tree to be printing.
// that way if anyone of them tries to "navigate" it can't
nsCOMPtr<nsIDocShellTreeNode> docShellTreeNode(do_QueryReferent(mContainer));
if (docShellTreeNode || !aIsPrinting) {
SetIsPrintingInDocShellTree(docShellTreeNode, aIsPrinting, true);
} else {
NS_WARNING("Did you close a window before printing?");
}
if (!aIsPrinting) {
mBeforeAndAfterPrint = nullptr;
}
#endif
}
//------------------------------------------------------------
// The PrintEngine holds the current value
// this called from inside the DocViewer.
// XXX it always returns false for subdocuments
bool
nsDocumentViewer::GetIsPrintPreview()
{
#ifdef NS_PRINTING
if (mPrintEngine) {
return mPrintEngine->GetIsPrintPreview();
}
#endif
return false;
}
//------------------------------------------------------------
// Notification from the PrintEngine of the current PP status
void
nsDocumentViewer::SetIsPrintPreview(bool aIsPrintPreview)
{
#ifdef NS_PRINTING
// Set all the docShells in the docshell tree to be printing.
// that way if anyone of them tries to "navigate" it can't
nsCOMPtr<nsIDocShellTreeNode> docShellTreeNode(do_QueryReferent(mContainer));
if (docShellTreeNode || !aIsPrintPreview) {
SetIsPrintingInDocShellTree(docShellTreeNode, aIsPrintPreview, true);
}
if (!aIsPrintPreview) {
mBeforeAndAfterPrint = nullptr;
}
#endif
if (!aIsPrintPreview) {
if (mPresShell) {
DestroyPresShell();
}
mWindow = nullptr;
mViewManager = nullptr;
mPresContext = nullptr;
mPresShell = nullptr;
}
}
//----------------------------------------------------------------------------------
// nsIDocumentViewerPrint IFace
//----------------------------------------------------------------------------------
//------------------------------------------------------------
void
nsDocumentViewer::IncrementDestroyRefCount()
{
++mDestroyRefCount;
}
//------------------------------------------------------------
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
//------------------------------------------------------------
// Reset ESM focus for all descendent doc shells.
static void
ResetFocusState(nsIDocShell* aDocShell)
{
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (!fm)
return;
nsCOMPtr<nsISimpleEnumerator> docShellEnumerator;
aDocShell->GetDocShellEnumerator(nsIDocShellTreeItem::typeContent,
nsIDocShell::ENUMERATE_FORWARDS,
getter_AddRefs(docShellEnumerator));
nsCOMPtr<nsISupports> currentContainer;
bool hasMoreDocShells;
while (NS_SUCCEEDED(docShellEnumerator->HasMoreElements(&hasMoreDocShells))
&& hasMoreDocShells) {
docShellEnumerator->GetNext(getter_AddRefs(currentContainer));
nsCOMPtr<nsIDOMWindow> win = do_GetInterface(currentContainer);
if (win)
fm->ClearFocus(win);
}
}
#endif // NS_PRINTING && NS_PRINT_PREVIEW
void
nsDocumentViewer::ReturnToGalleyPresentation()
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
if (!GetIsPrintPreview()) {
NS_ERROR("Wow, we should never get here!");
return;
}
SetIsPrintPreview(false);
mPrintEngine->TurnScriptingOn(true);
mPrintEngine->Destroy();
mPrintEngine = nullptr;
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mContainer));
ResetFocusState(docShell);
SetTextZoom(mTextZoom);
SetFullZoom(mPageZoom);
SetMinFontSize(mMinFontSize);
Show();
#endif // NS_PRINTING && NS_PRINT_PREVIEW
}
//------------------------------------------------------------
// This called ONLY when printing has completed and the DV
// is being notified that it should get rid of the PrintEngine.
//
// BUT, if we are in Print Preview then we want to ignore the
// notification (we do not get rid of the PrintEngine)
//
// One small caveat:
// This IS called from two places in this module for cleaning
// up when an error occurred during the start up printing
// and print preview
//
void
nsDocumentViewer::OnDonePrinting()
{
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
if (mPrintEngine) {
nsRefPtr<nsPrintEngine> pe = mPrintEngine;
if (GetIsPrintPreview()) {
pe->DestroyPrintingData();
} else {
mPrintEngine = nullptr;
pe->Destroy();
}
// We are done printing, now cleanup
if (mDeferredWindowClose) {
mDeferredWindowClose = false;
nsCOMPtr<nsISupports> container = do_QueryReferent(mContainer);
nsCOMPtr<nsIDOMWindow> win = do_GetInterface(container);
if (win)
win->Close();
} else if (mClosingWhilePrinting) {
if (mDocument) {
mDocument->SetScriptGlobalObject(nullptr);
mDocument->Destroy();
mDocument = nullptr;
}
mClosingWhilePrinting = false;
}
}
#endif // NS_PRINTING && NS_PRINT_PREVIEW
}
NS_IMETHODIMP nsDocumentViewer::SetPageMode(bool aPageMode, nsIPrintSettings* aPrintSettings)
{
// XXX Page mode is only partially working; it's currently used for
// reftests that require a paginated context
mIsPageMode = aPageMode;
if (mPresShell) {
DestroyPresShell();
}
if (mPresContext) {
DestroyPresContext();
}
mViewManager = nullptr;
mWindow = nullptr;
NS_ENSURE_STATE(mDocument);
if (aPageMode)
{
mPresContext = CreatePresContext(mDocument,
nsPresContext::eContext_PageLayout, FindContainerView());
NS_ENSURE_TRUE(mPresContext, NS_ERROR_OUT_OF_MEMORY);
mPresContext->SetPaginatedScrolling(true);
mPresContext->SetPrintSettings(aPrintSettings);
nsresult rv = mPresContext->Init(mDeviceContext);
NS_ENSURE_SUCCESS(rv, rv);
}
InitInternal(mParentWidget, nullptr, mBounds, true, false);
Show();
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetHistoryEntry(nsISHEntry **aHistoryEntry)
{
NS_IF_ADDREF(*aHistoryEntry = mSHEntry);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetIsTabModalPromptAllowed(bool *aAllowed)
{
*aAllowed = !(mInPermitUnload || mHidden);
return NS_OK;
}
NS_IMETHODIMP
nsDocumentViewer::GetIsHidden(bool *aHidden)
{
*aHidden = mHidden;
return NS_OK;
}
void
nsDocumentViewer::DestroyPresShell()
{
// Break circular reference (or something)
mPresShell->EndObservingDocument();
nsCOMPtr<nsISelection> selection;
GetDocumentSelection(getter_AddRefs(selection));
nsCOMPtr<nsISelectionPrivate> selPrivate = do_QueryInterface(selection);
if (selPrivate && mSelectionListener)
selPrivate->RemoveSelectionListener(mSelectionListener);
nsAutoScriptBlocker scriptBlocker;
mPresShell->Destroy();
mPresShell = nullptr;
}
void
nsDocumentViewer::DestroyPresContext()
{
mPresContext->SetContainer(nullptr);
mPresContext->SetLinkHandler(nullptr);
mPresContext = nullptr;
}
bool
nsDocumentViewer::IsInitializedForPrintPreview()
{
return mInitializedForPrintPreview;
}
void
nsDocumentViewer::InitializeForPrintPreview()
{
mInitializedForPrintPreview = true;
}
void
nsDocumentViewer::SetPrintPreviewPresentation(nsViewManager* aViewManager,
nsPresContext* aPresContext,
nsIPresShell* aPresShell)
{
if (mPresShell) {
DestroyPresShell();
}
mWindow = nullptr;
mViewManager = aViewManager;
mPresContext = aPresContext;
mPresShell = aPresShell;
}
// Fires the "document-shown" event so that interested parties are aware of it.
NS_IMETHODIMP
nsDocumentShownDispatcher::Run()
{
nsCOMPtr<nsIObserverService> observerService =
mozilla::services::GetObserverService();
if (observerService) {
observerService->NotifyObservers(mDocument, "document-shown", NULL);
}
return NS_OK;
}
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