зеркало из https://github.com/mozilla/gecko-dev.git
3947 строки
123 KiB
C++
3947 строки
123 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* container for a document and its presentation */
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#include "gfxContext.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/RestyleManager.h"
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#include "mozilla/ServoStyleSet.h"
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#include "nscore.h"
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#include "nsCOMPtr.h"
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#include "nsCRT.h"
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#include "nsFrameSelection.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsIContent.h"
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#include "nsIContentViewer.h"
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#include "nsIDocumentViewerPrint.h"
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#include "nsIScreen.h"
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#include "mozilla/dom/BrowsingContext.h"
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#include "mozilla/dom/BeforeUnloadEvent.h"
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#include "mozilla/dom/PopupBlocker.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/DocumentInlines.h"
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#include "mozilla/dom/DocGroup.h"
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#include "nsPresContext.h"
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#include "nsIFrame.h"
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#include "nsIWritablePropertyBag2.h"
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#include "nsSubDocumentFrame.h"
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#include "nsGenericHTMLElement.h"
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#include "nsStubMutationObserver.h"
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#include "nsISelectionListener.h"
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#include "mozilla/dom/Selection.h"
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#include "nsContentUtils.h"
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#ifdef ACCESSIBILITY
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# include "mozilla/a11y/DocAccessible.h"
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#endif
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#include "mozilla/BasicEvents.h"
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#include "mozilla/Encoding.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/WeakPtr.h"
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#include "mozilla/StaticPrefs_dom.h"
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#include "mozilla/StaticPrefs_javascript.h"
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#include "mozilla/StyleSheet.h"
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#include "mozilla/StyleSheetInlines.h"
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#include "nsViewManager.h"
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#include "nsView.h"
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#include "nsPageSequenceFrame.h"
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#include "nsNetUtil.h"
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#include "nsIContentViewerEdit.h"
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#include "mozilla/css/Loader.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsDocShell.h"
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#include "nsIBaseWindow.h"
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#include "nsILayoutHistoryState.h"
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#include "nsIScreen.h"
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#include "nsCharsetSource.h"
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#include "mozilla/ReflowInput.h"
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#include "nsIImageLoadingContent.h"
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#include "nsCopySupport.h"
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#ifdef MOZ_XUL
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# include "nsXULPopupManager.h"
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#endif
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#include "nsIClipboardHelper.h"
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#include "nsPIDOMWindow.h"
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#include "nsGlobalWindow.h"
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#include "nsDOMNavigationTiming.h"
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#include "nsPIWindowRoot.h"
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#include "nsJSEnvironment.h"
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#include "nsFocusManager.h"
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#include "nsIScrollableFrame.h"
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#include "nsStyleSheetService.h"
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#include "nsILoadContext.h"
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#include "mozilla/ThrottledEventQueue.h"
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#include "nsIPromptCollection.h"
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#include "nsIPromptService.h"
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#include "imgIContainer.h" // image animation mode constants
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#include "nsSandboxFlags.h"
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#include "mozilla/DocLoadingTimelineMarker.h"
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//--------------------------
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// Printing Include
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//---------------------------
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#ifdef NS_PRINTING
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# include "nsIWebBrowserPrint.h"
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# include "nsPrintJob.h"
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// Print Options
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# include "nsIPrintSettings.h"
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# include "nsIPrintSettingsService.h"
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# include "nsISimpleEnumerator.h"
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# include "nsIPluginDocument.h"
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#endif // NS_PRINTING
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// focus
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#include "nsIDOMEventListener.h"
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#include "nsISelectionController.h"
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#include "mozilla/EventDispatcher.h"
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#include "nsISHEntry.h"
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#include "nsISHistory.h"
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#include "nsIWebNavigation.h"
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#include "mozilla/dom/XMLHttpRequestMainThread.h"
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// paint forcing
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#include <stdio.h>
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/dom/ScriptLoader.h"
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#include "mozilla/dom/WindowGlobalChild.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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//-----------------------------------------------------
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// LOGGING
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#include "LayoutLogging.h"
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#include "mozilla/Logging.h"
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extern mozilla::LazyLogModule gPageCacheLog;
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#ifdef NS_PRINTING
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static mozilla::LazyLogModule gPrintingLog("printing");
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# define PR_PL(_p1) MOZ_LOG(gPrintingLog, mozilla::LogLevel::Debug, _p1);
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#endif // NS_PRINTING
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#define PRT_YESNO(_p) ((_p) ? "YES" : "NO")
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//-----------------------------------------------------
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class nsDocumentViewer;
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namespace mozilla {
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class AutoPrintEventDispatcher;
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}
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// a small delegate class used to avoid circular references
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class nsDocViewerSelectionListener final : public nsISelectionListener {
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public:
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// nsISupports interface...
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NS_DECL_ISUPPORTS
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// nsISelectionListerner interface
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NS_DECL_NSISELECTIONLISTENER
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explicit nsDocViewerSelectionListener(nsDocumentViewer* aDocViewer)
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: mDocViewer(aDocViewer), mSelectionWasCollapsed(true) {}
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void Disconnect() { mDocViewer = nullptr; }
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protected:
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virtual ~nsDocViewerSelectionListener() = default;
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nsDocumentViewer* mDocViewer;
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bool mSelectionWasCollapsed;
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};
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/** editor Implementation of the FocusListener interface */
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class nsDocViewerFocusListener final : public nsIDOMEventListener {
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public:
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explicit nsDocViewerFocusListener(nsDocumentViewer* aDocViewer)
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: mDocViewer(aDocViewer) {}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDOMEVENTLISTENER
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void Disconnect() { mDocViewer = nullptr; }
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protected:
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virtual ~nsDocViewerFocusListener() = default;
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nsDocumentViewer* mDocViewer;
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};
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namespace viewer_detail {
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/**
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* Mutation observer for use until we hand ourselves over to our SHEntry.
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*/
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class BFCachePreventionObserver final : public nsStubMutationObserver {
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public:
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explicit BFCachePreventionObserver(Document* aDocument)
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: mDocument(aDocument) {}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
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NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
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NS_DECL_NSIMUTATIONOBSERVER_NODEWILLBEDESTROYED
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// Stop observing the document.
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void Disconnect();
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private:
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~BFCachePreventionObserver() = default;
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// Helper for the work that needs to happen when mutations happen.
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void MutationHappened();
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Document* mDocument; // Weak; we get notified if it dies
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};
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NS_IMPL_ISUPPORTS(BFCachePreventionObserver, nsIMutationObserver)
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void BFCachePreventionObserver::CharacterDataChanged(
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nsIContent* aContent, const CharacterDataChangeInfo&) {
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MutationHappened();
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}
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void BFCachePreventionObserver::AttributeChanged(Element* aElement,
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int32_t aNameSpaceID,
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nsAtom* aAttribute,
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int32_t aModType,
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const nsAttrValue* aOldValue) {
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MutationHappened();
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}
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void BFCachePreventionObserver::ContentAppended(nsIContent* aFirstNewContent) {
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MutationHappened();
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}
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void BFCachePreventionObserver::ContentInserted(nsIContent* aChild) {
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MutationHappened();
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}
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void BFCachePreventionObserver::ContentRemoved(nsIContent* aChild,
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nsIContent* aPreviousSibling) {
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MutationHappened();
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}
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void BFCachePreventionObserver::NodeWillBeDestroyed(const nsINode* aNode) {
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mDocument = nullptr;
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}
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void BFCachePreventionObserver::Disconnect() {
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if (mDocument) {
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mDocument->RemoveMutationObserver(this);
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// It will no longer tell us when it goes away, so make sure we're
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// not holding a dangling ref.
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mDocument = nullptr;
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}
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}
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void BFCachePreventionObserver::MutationHappened() {
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MOZ_ASSERT(
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mDocument,
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"How can we not have a document but be getting notified for mutations?");
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mDocument->DisallowBFCaching();
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Disconnect();
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}
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} // namespace viewer_detail
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using viewer_detail::BFCachePreventionObserver;
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//-------------------------------------------------------------
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class nsDocumentViewer final : public nsIContentViewer,
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public nsIContentViewerEdit,
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public nsIDocumentViewerPrint
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#ifdef NS_PRINTING
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,
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public nsIWebBrowserPrint
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#endif
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{
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friend class nsDocViewerSelectionListener;
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friend class nsPagePrintTimer;
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friend class nsPrintJob;
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public:
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nsDocumentViewer();
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// nsISupports interface...
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NS_DECL_ISUPPORTS
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// nsIContentViewer interface...
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NS_DECL_NSICONTENTVIEWER
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// nsIContentViewerEdit
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NS_DECL_NSICONTENTVIEWEREDIT
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#ifdef NS_PRINTING
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// nsIWebBrowserPrint
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NS_DECL_NSIWEBBROWSERPRINT
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#endif
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using CallChildFunc = FunctionRef<void(nsDocumentViewer*)>;
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void CallChildren(CallChildFunc aFunc);
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using PresContextFunc = FunctionRef<void(nsPresContext*)>;
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/**
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* Calls a `CallChildFunc` on all children, a `PresContextFunc`
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* on all external documents' pres contexts of our document, and then
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* finally on _this_ pres context, in that order.
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*
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* The children function is expected to call this function reentrantly, and
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* thus the `PresContextFunc` won't be called for the children's pres context
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* directly here.
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*
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* FIXME(emilio): Better name for this appreciated.
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*/
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void PropagateToPresContextsHelper(CallChildFunc, PresContextFunc);
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// nsIDocumentViewerPrint Printing Methods
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NS_DECL_NSIDOCUMENTVIEWERPRINT
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void EmulateMediumInternal(nsAtom*);
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using ColorSchemeOverride = Maybe<StylePrefersColorScheme>;
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void EmulatePrefersColorSchemeInternal(const ColorSchemeOverride&);
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protected:
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virtual ~nsDocumentViewer();
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private:
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/**
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* Creates a view manager, root view, and widget for the root view, setting
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* mViewManager and mWindow.
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* @param aSize the initial size in appunits
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* @param aContainerView the container view to hook our root view up
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* to as a child, or null if this will be the root view manager
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*/
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nsresult MakeWindow(const nsSize& aSize, nsView* aContainerView);
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/**
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* Create our device context
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*/
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nsresult CreateDeviceContext(nsView* aContainerView);
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/**
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* If aDoCreation is true, this creates the device context, creates a
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* prescontext if necessary, and calls MakeWindow.
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*
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* If aForceSetNewDocument is false, then SetNewDocument won't be
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* called if the window's current document is already mDocument.
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*/
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nsresult InitInternal(nsIWidget* aParentWidget, nsISupports* aState,
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mozilla::dom::WindowGlobalChild* aActor,
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const nsIntRect& aBounds, bool aDoCreation,
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bool aNeedMakeCX = true,
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bool aForceSetNewDocument = true);
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/**
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* @param aDoInitialReflow set to true if you want to kick off the initial
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* reflow
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*/
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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nsresult InitPresentationStuff(bool aDoInitialReflow);
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already_AddRefed<nsINode> GetPopupNode();
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already_AddRefed<nsINode> GetPopupLinkNode();
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already_AddRefed<nsIImageLoadingContent> GetPopupImageNode();
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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nsresult GetContentSizeInternal(int32_t* aWidth, int32_t* aHeight,
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nscoord aMaxWidth, nscoord aMaxHeight);
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void PrepareToStartLoad(void);
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nsresult SyncParentSubDocMap();
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void RemoveFocusListener();
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void ReinitializeFocusListener();
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mozilla::dom::Selection* GetDocumentSelection();
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void DestroyPresShell();
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void DestroyPresContext();
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void InvalidatePotentialSubDocDisplayItem();
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#ifdef NS_PRINTING
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// Called when the DocViewer is notified that the state
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// of Printing or PP has changed
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void SetIsPrintingInDocShellTree(nsIDocShellTreeItem* aParentNode,
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bool aIsPrintingOrPP, bool aStartAtTop);
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#endif // NS_PRINTING
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// Whether we should attach to the top level widget. This is true if we
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// are sharing/recycling a single base widget and not creating multiple
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// child widgets.
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bool ShouldAttachToTopLevel();
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protected:
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// Returns the current viewmanager. Might be null.
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nsViewManager* GetViewManager();
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void DetachFromTopLevelWidget();
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// IMPORTANT: The ownership implicit in the following member
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// variables has been explicitly checked and set using nsCOMPtr
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// for owning pointers and raw COM interface pointers for weak
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// (ie, non owning) references. If you add any members to this
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// class, please make the ownership explicit (pinkerton, scc).
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WeakPtr<nsDocShell> mContainer; // it owns me!
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nsWeakPtr mTopContainerWhilePrinting;
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RefPtr<nsDeviceContext> mDeviceContext; // We create and own this baby
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// the following six items are explicitly in this order
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// so they will be destroyed in the reverse order (pinkerton, scc)
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nsCOMPtr<Document> mDocument;
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nsCOMPtr<nsIWidget> mWindow; // may be null
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RefPtr<nsViewManager> mViewManager;
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RefPtr<nsPresContext> mPresContext;
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RefPtr<PresShell> mPresShell;
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RefPtr<nsDocViewerSelectionListener> mSelectionListener;
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RefPtr<nsDocViewerFocusListener> mFocusListener;
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nsCOMPtr<nsIContentViewer> mPreviousViewer;
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nsCOMPtr<nsISHEntry> mSHEntry;
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// Observer that will prevent bfcaching if it gets notified. This
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// is non-null precisely when mSHEntry is non-null.
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RefPtr<BFCachePreventionObserver> mBFCachePreventionObserver;
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nsIWidget* mParentWidget; // purposely won't be ref counted. May be null
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bool mAttachedToParent; // view is attached to the parent widget
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nsIntRect mBounds;
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float mOverrideDPPX; // DPPX overrided, defaults to 0.0
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int16_t mNumURLStarts;
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int16_t mDestroyBlockedCount;
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unsigned mStopped : 1;
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unsigned mLoaded : 1;
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unsigned mDeferredWindowClose : 1;
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// document management data
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// these items are specific to markup documents (html and xml)
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// may consider splitting these out into a subclass
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unsigned mIsSticky : 1;
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unsigned mInPermitUnload : 1;
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unsigned mInPermitUnloadPrompt : 1;
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#ifdef NS_PRINTING
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unsigned mClosingWhilePrinting : 1;
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# if NS_PRINT_PREVIEW
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// These data members support delayed printing when the document is loading
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unsigned mPrintIsPending : 1;
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unsigned mPrintDocIsFullyLoaded : 1;
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nsCOMPtr<nsIPrintSettings> mCachedPrintSettings;
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nsCOMPtr<nsIWebProgressListener> mCachedPrintWebProgressListner;
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RefPtr<nsPrintJob> mPrintJob;
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UniquePtr<AutoPrintEventDispatcher> mAutoBeforeAndAfterPrint;
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# endif // NS_PRINT_PREVIEW
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#endif // NS_PRINTING
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/* character set member data */
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int32_t mHintCharsetSource;
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const Encoding* mHintCharset;
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const Encoding* mForceCharacterSet;
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bool mIsPageMode;
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bool mInitializedForPrintPreview;
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bool mHidden;
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};
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namespace mozilla {
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/**
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* A RAII class for automatic dispatch of the 'beforeprint' and 'afterprint'
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* events ('beforeprint' on construction, 'afterprint' on destruction).
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*
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* https://developer.mozilla.org/en-US/docs/Web/Events/beforeprint
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* https://developer.mozilla.org/en-US/docs/Web/Events/afterprint
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*/
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class AutoPrintEventDispatcher {
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public:
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explicit AutoPrintEventDispatcher(Document* aTop) : mTop(aTop) {
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DispatchEventToWindowTree(NS_LITERAL_STRING("beforeprint"));
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}
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~AutoPrintEventDispatcher() {
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DispatchEventToWindowTree(NS_LITERAL_STRING("afterprint"));
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}
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private:
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static CallState CollectDocuments(Document& aDoc,
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nsTArray<nsCOMPtr<Document>>& aDocs) {
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aDocs.AppendElement(&aDoc);
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auto recurse = [&aDocs](Document& aSubDoc) {
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return CollectDocuments(aSubDoc, aDocs);
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};
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aDoc.EnumerateSubDocuments(recurse);
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return CallState::Continue;
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}
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void DispatchEventToWindowTree(const nsAString& aEvent) {
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nsTArray<nsCOMPtr<Document>> targets;
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if (mTop) {
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CollectDocuments(*mTop, targets);
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}
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for (nsCOMPtr<Document>& doc : targets) {
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nsContentUtils::DispatchTrustedEvent(doc, doc->GetWindow(), aEvent,
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CanBubble::eNo, Cancelable::eNo,
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nullptr);
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}
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}
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nsCOMPtr<Document> mTop;
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|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
class nsDocumentShownDispatcher : public Runnable {
|
|
public:
|
|
explicit nsDocumentShownDispatcher(nsCOMPtr<Document> aDocument)
|
|
: Runnable("nsDocumentShownDispatcher"), mDocument(aDocument) {}
|
|
|
|
NS_IMETHOD Run() override;
|
|
|
|
private:
|
|
nsCOMPtr<Document> mDocument;
|
|
};
|
|
|
|
//------------------------------------------------------------------
|
|
// nsDocumentViewer
|
|
//------------------------------------------------------------------
|
|
|
|
//------------------------------------------------------------------
|
|
already_AddRefed<nsIContentViewer> NS_NewContentViewer() {
|
|
RefPtr<nsDocumentViewer> viewer = new nsDocumentViewer();
|
|
return viewer.forget();
|
|
}
|
|
|
|
void nsDocumentViewer::PrepareToStartLoad() {
|
|
MOZ_DIAGNOSTIC_ASSERT(!GetIsPrintPreview(),
|
|
"Print preview tab should never navigate");
|
|
|
|
mStopped = false;
|
|
mLoaded = false;
|
|
mAttachedToParent = false;
|
|
mDeferredWindowClose = false;
|
|
|
|
#ifdef NS_PRINTING
|
|
mPrintIsPending = false;
|
|
mPrintDocIsFullyLoaded = false;
|
|
mClosingWhilePrinting = false;
|
|
|
|
// Make sure we have destroyed it and cleared the data member
|
|
if (mPrintJob) {
|
|
mPrintJob->Destroy();
|
|
mPrintJob = nullptr;
|
|
}
|
|
|
|
#endif // NS_PRINTING
|
|
}
|
|
|
|
nsDocumentViewer::nsDocumentViewer()
|
|
: mParentWidget(nullptr),
|
|
mAttachedToParent(false),
|
|
mOverrideDPPX(0.0),
|
|
mNumURLStarts(0),
|
|
mDestroyBlockedCount(0),
|
|
mStopped(false),
|
|
mLoaded(false),
|
|
mDeferredWindowClose(false),
|
|
mIsSticky(true),
|
|
mInPermitUnload(false),
|
|
mInPermitUnloadPrompt(false),
|
|
#ifdef NS_PRINTING
|
|
mClosingWhilePrinting(false),
|
|
# if NS_PRINT_PREVIEW
|
|
mPrintIsPending(false),
|
|
mPrintDocIsFullyLoaded(false),
|
|
# endif // NS_PRINT_PREVIEW
|
|
#endif // NS_PRINTING
|
|
mHintCharsetSource(kCharsetUninitialized),
|
|
mHintCharset(nullptr),
|
|
mForceCharacterSet(nullptr),
|
|
mIsPageMode(false),
|
|
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(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();
|
|
}
|
|
|
|
#ifdef NS_PRINTING
|
|
if (mPrintJob) {
|
|
mPrintJob->Destroy();
|
|
mPrintJob = nullptr;
|
|
}
|
|
#endif
|
|
|
|
MOZ_RELEASE_ASSERT(mDestroyBlockedCount == 0);
|
|
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();
|
|
}
|
|
|
|
if (mSelectionListener) {
|
|
mSelectionListener->Disconnect();
|
|
}
|
|
|
|
RemoveFocusListener();
|
|
|
|
// 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.
|
|
*/
|
|
/* virtual */
|
|
void nsDocumentViewer::LoadStart(Document* aDocument) {
|
|
MOZ_ASSERT(aDocument);
|
|
|
|
if (!mDocument) {
|
|
mDocument = aDocument;
|
|
}
|
|
}
|
|
|
|
void nsDocumentViewer::RemoveFocusListener() {
|
|
if (RefPtr<nsDocViewerFocusListener> oldListener =
|
|
std::move(mFocusListener)) {
|
|
oldListener->Disconnect();
|
|
if (mDocument) {
|
|
mDocument->RemoveEventListener(NS_LITERAL_STRING("focus"), oldListener,
|
|
false);
|
|
mDocument->RemoveEventListener(NS_LITERAL_STRING("blur"), oldListener,
|
|
false);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsDocumentViewer::ReinitializeFocusListener() {
|
|
RemoveFocusListener();
|
|
mFocusListener = new nsDocViewerFocusListener(this);
|
|
if (mDocument) {
|
|
mDocument->AddEventListener(NS_LITERAL_STRING("focus"), mFocusListener,
|
|
false, false);
|
|
mDocument->AddEventListener(NS_LITERAL_STRING("blur"), mFocusListener,
|
|
false, false);
|
|
}
|
|
}
|
|
|
|
nsresult nsDocumentViewer::SyncParentSubDocMap() {
|
|
nsCOMPtr<nsIDocShell> docShell(mContainer);
|
|
if (!docShell) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> pwin(docShell->GetWindow());
|
|
if (!mDocument || !pwin) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<Element> element = pwin->GetFrameElementInternal();
|
|
if (!element) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> parent;
|
|
docShell->GetInProcessParent(getter_AddRefs(parent));
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> parent_win =
|
|
parent ? parent->GetWindow() : nullptr;
|
|
if (!parent_win) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<Document> parent_doc = parent_win->GetDoc();
|
|
if (!parent_doc) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mDocument && parent_doc->GetSubDocumentFor(element) != mDocument &&
|
|
parent_doc->EventHandlingSuppressed()) {
|
|
mDocument->SuppressEventHandling(parent_doc->EventHandlingSuppressed());
|
|
}
|
|
return parent_doc->SetSubDocumentFor(element, mDocument);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetContainer(nsIDocShell* aContainer) {
|
|
mContainer = static_cast<nsDocShell*>(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(nsIDocShell** aResult) {
|
|
NS_ENSURE_ARG_POINTER(aResult);
|
|
|
|
nsCOMPtr<nsIDocShell> container(mContainer);
|
|
container.swap(*aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::Init(nsIWidget* aParentWidget, const nsIntRect& aBounds,
|
|
WindowGlobalChild* aActor) {
|
|
return InitInternal(aParentWidget, nullptr, aActor, aBounds, true);
|
|
}
|
|
|
|
nsresult nsDocumentViewer::InitPresentationStuff(bool aDoInitialReflow) {
|
|
// We assert this because initializing the pres shell could otherwise cause
|
|
// re-entrancy into nsDocumentViewer methods, which might cause a different
|
|
// pres shell to be created. Callers of InitPresentationStuff should ensure
|
|
// the call is appropriately bounded by an nsAutoScriptBlocker to decide
|
|
// when it is safe for these re-entrant calls to be made.
|
|
MOZ_ASSERT(!nsContentUtils::IsSafeToRunScript(),
|
|
"InitPresentationStuff must only be called when scripts are "
|
|
"blocked");
|
|
|
|
if (GetIsPrintPreview()) return NS_OK;
|
|
|
|
NS_ASSERTION(!mPresShell, "Someone should have destroyed the presshell!");
|
|
|
|
// Now make the shell for the document
|
|
mPresShell = mDocument->CreatePresShell(mPresContext, mViewManager);
|
|
if (!mPresShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
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(FlushType::ContentAndNotify);
|
|
}
|
|
|
|
mPresShell->BeginObservingDocument();
|
|
|
|
// Initialize our view manager
|
|
|
|
{
|
|
int32_t p2a = mPresContext->AppUnitsPerDevPixel();
|
|
MOZ_ASSERT(
|
|
p2a ==
|
|
mPresContext->DeviceContext()->AppUnitsPerDevPixelAtUnitFullZoom());
|
|
|
|
nscoord width = p2a * mBounds.width;
|
|
nscoord height = p2a * mBounds.height;
|
|
|
|
mViewManager->SetWindowDimensions(width, height);
|
|
mPresContext->SetVisibleArea(nsRect(0, 0, width, height));
|
|
// We rely on the default zoom not being initialized until here.
|
|
mPresContext->RecomputeBrowsingContextDependentData();
|
|
mPresContext->SetOverrideDPPX(mOverrideDPPX);
|
|
}
|
|
|
|
if (mWindow && mDocument->IsTopLevelContentDocument()) {
|
|
// Set initial safe area insets
|
|
ScreenIntMargin windowSafeAreaInsets;
|
|
LayoutDeviceIntRect windowRect = mWindow->GetScreenBounds();
|
|
nsCOMPtr<nsIScreen> screen = mWindow->GetWidgetScreen();
|
|
if (screen) {
|
|
windowSafeAreaInsets = nsContentUtils::GetWindowSafeAreaInsets(
|
|
screen, mWindow->GetSafeAreaInsets(), windowRect);
|
|
}
|
|
|
|
mPresContext->SetSafeAreaInsets(windowSafeAreaInsets);
|
|
}
|
|
|
|
if (aDoInitialReflow) {
|
|
RefPtr<PresShell> presShell = mPresShell;
|
|
// Initial reflow
|
|
presShell->Initialize();
|
|
}
|
|
|
|
// now register ourselves as a selection listener, so that we get
|
|
// called when the selection changes in the window
|
|
if (!mSelectionListener) {
|
|
mSelectionListener = new nsDocViewerSelectionListener(this);
|
|
}
|
|
|
|
RefPtr<mozilla::dom::Selection> selection = GetDocumentSelection();
|
|
if (!selection) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
selection->AddSelectionListener(mSelectionListener);
|
|
|
|
ReinitializeFocusListener();
|
|
|
|
if (aDoInitialReflow && mDocument) {
|
|
nsCOMPtr<Document> document = mDocument;
|
|
document->ScrollToRef();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsPresContext* CreatePresContext(Document* 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, WindowGlobalChild* aActor,
|
|
const nsIntRect& aBounds, bool aDoCreation, bool aNeedMakeCX /*= true*/,
|
|
bool aForceSetNewDocument /* = true*/) {
|
|
// 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()->GetPresShell()))) {
|
|
// Create presentation context
|
|
if (mIsPageMode) {
|
|
// Presentation context already created in SetPageModeForTesting 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(mContainer);
|
|
if (requestor) {
|
|
// Set script-context-owner in the document
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(requestor);
|
|
|
|
if (window) {
|
|
nsCOMPtr<Document> curDoc = window->GetExtantDoc();
|
|
if (aForceSetNewDocument || curDoc != mDocument) {
|
|
rv = window->SetNewDocument(mDocument, aState, false, aActor);
|
|
if (NS_FAILED(rv)) {
|
|
Destroy();
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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.
|
|
*/
|
|
RefPtr<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
|
|
RefPtr<PresShell> presShell = mPresShell;
|
|
presShell->FlushPendingNotifications(FlushType::Layout);
|
|
}
|
|
|
|
nsresult rv = NS_OK;
|
|
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
// First, get the window from the document...
|
|
nsCOMPtr<nsPIDOMWindowOuter> 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)) {
|
|
// If this code changes, the code in nsDocLoader::DocLoaderIsEmpty
|
|
// that fires load events for document.open() cases might need to
|
|
// be updated too.
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
WidgetEvent event(true, eLoad);
|
|
event.mFlags.mBubbles = false;
|
|
event.mFlags.mCancelable = false;
|
|
// XXX Dispatching to |window|, but using |document| as the target.
|
|
event.mTarget = 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);
|
|
|
|
// Unfortunately, docShell->GetRestoringDocument() might no longer be set
|
|
// correctly. In particular, it can be false by now if someone took it upon
|
|
// themselves to block onload from inside restoration and unblock it later.
|
|
// But we can detect the restoring case very simply: by whether our
|
|
// document's readyState is COMPLETE.
|
|
restoring =
|
|
(mDocument->GetReadyStateEnum() == Document::READYSTATE_COMPLETE);
|
|
if (!restoring) {
|
|
NS_ASSERTION(
|
|
mDocument->GetReadyStateEnum() == Document::READYSTATE_INTERACTIVE ||
|
|
// test_stricttransportsecurity.html has old-style
|
|
// docshell-generated about:blank docs reach this code!
|
|
(mDocument->GetReadyStateEnum() ==
|
|
Document::READYSTATE_UNINITIALIZED &&
|
|
NS_IsAboutBlank(mDocument->GetDocumentURI())),
|
|
"Bad readystate");
|
|
#ifdef DEBUG
|
|
bool docShellThinksWeAreRestoring;
|
|
docShell->GetRestoringDocument(&docShellThinksWeAreRestoring);
|
|
MOZ_ASSERT(!docShellThinksWeAreRestoring,
|
|
"How can docshell think we are restoring if we don't have a "
|
|
"READYSTATE_COMPLETE document?");
|
|
#endif // DEBUG
|
|
nsCOMPtr<Document> d = mDocument;
|
|
mDocument->SetReadyStateInternal(Document::READYSTATE_COMPLETE);
|
|
|
|
RefPtr<nsDOMNavigationTiming> timing(d->GetNavigationTiming());
|
|
if (timing) {
|
|
timing->NotifyLoadEventStart();
|
|
}
|
|
|
|
// Dispatch observer notification to notify observers document load is
|
|
// complete.
|
|
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
|
|
if (os) {
|
|
nsIPrincipal* principal = d->NodePrincipal();
|
|
os->NotifyObservers(ToSupports(d),
|
|
principal->IsSystemPrincipal()
|
|
? "chrome-document-loaded"
|
|
: "content-document-loaded",
|
|
nullptr);
|
|
}
|
|
|
|
// Notify any devtools about the load.
|
|
RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
|
|
|
|
if (timelines && timelines->HasConsumer(docShell)) {
|
|
timelines->AddMarkerForDocShell(
|
|
docShell, MakeUnique<DocLoadingTimelineMarker>("document::Load"));
|
|
}
|
|
|
|
nsPIDOMWindowInner* innerWindow = window->GetCurrentInnerWindow();
|
|
RefPtr<DocGroup> docGroup = d->GetDocGroup();
|
|
// It is possible that the parent document's load event fires earlier than
|
|
// childs' load event, and in this case we need to fire some artificial
|
|
// load events to make the parent thinks the load events for child has
|
|
// been done
|
|
if (innerWindow && DocGroup::TryToLoadIframesInBackground()) {
|
|
nsTArray<nsCOMPtr<nsIDocShell>> docShells;
|
|
nsCOMPtr<nsIDocShell> container(mContainer);
|
|
if (container) {
|
|
int32_t count;
|
|
container->GetInProcessChildCount(&count);
|
|
// We first find all background loading iframes that need to
|
|
// fire artificial load events, and instead of firing them as
|
|
// soon as we find them, we store them in an array, to prevent
|
|
// us from skipping some events.
|
|
for (int32_t i = 0; i < count; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> child;
|
|
container->GetInProcessChildAt(i, getter_AddRefs(child));
|
|
nsCOMPtr<nsIDocShell> childIDocShell = do_QueryInterface(child);
|
|
RefPtr<nsDocShell> docShell = nsDocShell::Cast(childIDocShell);
|
|
if (docShell && docShell->TreatAsBackgroundLoad() &&
|
|
docShell->GetDocument()->GetReadyStateEnum() <
|
|
Document::READYSTATE_COMPLETE) {
|
|
docShells.AppendElement(childIDocShell);
|
|
}
|
|
}
|
|
|
|
// Re-iterate the stored docShells to fire artificial load events
|
|
for (size_t i = 0; i < docShells.Length(); ++i) {
|
|
RefPtr<nsDocShell> docShell = nsDocShell::Cast(docShells[i]);
|
|
if (docShell && docShell->TreatAsBackgroundLoad() &&
|
|
docShell->GetDocument()->GetReadyStateEnum() <
|
|
Document::READYSTATE_COMPLETE) {
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
WidgetEvent event(true, eLoad);
|
|
event.mFlags.mBubbles = false;
|
|
event.mFlags.mCancelable = false;
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> win = docShell->GetWindow();
|
|
nsCOMPtr<Element> element = win->GetFrameElementInternal();
|
|
|
|
docShell->SetFakeOnLoadDispatched();
|
|
EventDispatcher::Dispatch(element, nullptr, &event, nullptr,
|
|
&status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
d->SetLoadEventFiring(true);
|
|
EventDispatcher::Dispatch(window, mPresContext, &event, nullptr, &status);
|
|
d->SetLoadEventFiring(false);
|
|
|
|
RefPtr<nsDocShell> dShell = nsDocShell::Cast(docShell);
|
|
if (docGroup && dShell->TreatAsBackgroundLoad()) {
|
|
docGroup->TryFlushIframePostMessages(dShell->GetOuterWindowID());
|
|
}
|
|
|
|
if (timing) {
|
|
timing->NotifyLoadEventEnd();
|
|
}
|
|
|
|
if (innerWindow) {
|
|
innerWindow->QueuePerformanceNavigationTiming();
|
|
}
|
|
}
|
|
} else {
|
|
// XXX: Should fire error event to the document...
|
|
|
|
// If our load was explicitly aborted, then we want to set our
|
|
// readyState to COMPLETE, and fire a readystatechange event.
|
|
if (aStatus == NS_BINDING_ABORTED && mDocument) {
|
|
mDocument->NotifyAbortedLoad();
|
|
}
|
|
}
|
|
|
|
// 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. Or, mDocument may not be
|
|
// the "current active" document, if the above firing of onload caused our
|
|
// docshell to navigate away. NOTE: In this latter scenario, it's likely that
|
|
// we fired pagehide (when navigating away) without ever having fired
|
|
// pageshow, and that's pretty broken... Fortunately, this should be rare.
|
|
// (It requires us to spin the event loop in onload handler, e.g. via sync
|
|
// XHR, in order for the navigation-away to happen before onload completes.)
|
|
// We skip firing pageshow if we're currently handling unload, or if loading
|
|
// was explicitly aborted.
|
|
if (mDocument && mDocument->IsCurrentActiveDocument() &&
|
|
aStatus != NS_BINDING_ABORTED) {
|
|
// 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);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mStopped) {
|
|
if (mDocument) {
|
|
nsCOMPtr<Document> document = mDocument;
|
|
document->ScrollToRef();
|
|
}
|
|
|
|
// Now that the document has loaded, we can tell the presshell
|
|
// to unsuppress painting.
|
|
if (mPresShell) {
|
|
RefPtr<PresShell> presShell = mPresShell;
|
|
presShell->UnsuppressPainting();
|
|
// mPresShell could have been removed now, see bug 378682/421432
|
|
if (mPresShell) {
|
|
mPresShell->LoadComplete();
|
|
}
|
|
}
|
|
}
|
|
// Release the JS bytecode cache from its wait on the load event, and
|
|
// potentially dispatch the encoding of the bytecode.
|
|
if (mDocument && mDocument->ScriptLoader()) {
|
|
mDocument->ScriptLoader()->LoadEventFired();
|
|
}
|
|
|
|
// It's probably a good idea to GC soon since we have finished loading.
|
|
nsJSContext::PokeGC(
|
|
JS::GCReason::LOAD_END,
|
|
mDocument ? mDocument->GetWrapperPreserveColor() : nullptr);
|
|
|
|
#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;
|
|
}
|
|
|
|
bool nsDocumentViewer::GetLoadCompleted() { return mLoaded; }
|
|
|
|
bool nsDocumentViewer::GetIsStopped() { return mStopped; }
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::PermitUnload(uint32_t aPermitUnloadFlags,
|
|
bool* aPermitUnload) {
|
|
return PermitUnloadInternal(&aPermitUnloadFlags, aPermitUnload);
|
|
}
|
|
|
|
nsresult nsDocumentViewer::PermitUnloadInternal(uint32_t* aPermitUnloadFlags,
|
|
bool* aPermitUnload) {
|
|
AutoDontWarnAboutSyncXHR disableSyncXHRWarning;
|
|
|
|
nsresult rv = NS_OK;
|
|
*aPermitUnload = true;
|
|
|
|
if (!mDocument || mInPermitUnload || mInPermitUnloadPrompt) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// First, get the script global object from the document...
|
|
nsPIDOMWindowOuter* 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");
|
|
|
|
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#prompt-to-unload-a-document
|
|
// Create an RAII object on mDocument that will increment the
|
|
// should-ignore-opens-during-unload counter on initialization
|
|
// and decrement it again when it goes out of score (regardless
|
|
// of how we exit this function).
|
|
IgnoreOpensDuringUnload ignoreOpens(mDocument);
|
|
|
|
// Now, fire an BeforeUnload event to the document and see if it's ok
|
|
// to unload...
|
|
nsPresContext* presContext = mDocument->GetPresContext();
|
|
RefPtr<BeforeUnloadEvent> event =
|
|
new BeforeUnloadEvent(mDocument, presContext, nullptr);
|
|
event->InitEvent(NS_LITERAL_STRING("beforeunload"), false, true);
|
|
|
|
// 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)
|
|
RefPtr<nsDocumentViewer> kungFuDeathGrip(this);
|
|
|
|
bool dialogsAreEnabled = false;
|
|
{
|
|
// Never permit popups from the beforeunload handler, no matter
|
|
// how we get here.
|
|
AutoPopupStatePusher popupStatePusher(PopupBlocker::openAbused, true);
|
|
|
|
// Never permit dialogs from the beforeunload handler
|
|
nsGlobalWindowOuter* globalWindow = nsGlobalWindowOuter::Cast(window);
|
|
dialogsAreEnabled = globalWindow->AreDialogsEnabled();
|
|
nsGlobalWindowOuter::TemporarilyDisableDialogs disableDialogs(globalWindow);
|
|
|
|
Document::PageUnloadingEventTimeStamp timestamp(mDocument);
|
|
|
|
mInPermitUnload = true;
|
|
EventDispatcher::DispatchDOMEvent(window, nullptr, event, mPresContext,
|
|
nullptr);
|
|
mInPermitUnload = false;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShell> docShell(mContainer);
|
|
nsAutoString text;
|
|
event->GetReturnValue(text);
|
|
|
|
if (StaticPrefs::dom_disable_beforeunload()) {
|
|
*aPermitUnloadFlags = eDontPromptAndUnload;
|
|
}
|
|
|
|
// NB: we nullcheck mDocument because it might now be dead as a result of
|
|
// the event being dispatched.
|
|
if (*aPermitUnloadFlags != eDontPromptAndUnload && dialogsAreEnabled &&
|
|
mDocument && !(mDocument->GetSandboxFlags() & SANDBOXED_MODALS) &&
|
|
(!StaticPrefs::dom_require_user_interaction_for_beforeunload() ||
|
|
mDocument->UserHasInteracted()) &&
|
|
(event->WidgetEventPtr()->DefaultPrevented() || !text.IsEmpty())) {
|
|
// If the consumer wants prompt requests to just stop unloading, we don't
|
|
// need to prompt and can return immediately.
|
|
if (*aPermitUnloadFlags == eDontPromptAndDontUnload) {
|
|
*aPermitUnload = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Ask the user if it's ok to unload the current page
|
|
|
|
nsCOMPtr<nsIPromptCollection> prompt =
|
|
do_GetService("@mozilla.org/embedcomp/prompt-collection;1");
|
|
|
|
if (prompt) {
|
|
nsAutoSyncOperation sync(mDocument);
|
|
mInPermitUnloadPrompt = true;
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::ONBEFOREUNLOAD_PROMPT_COUNT, 1);
|
|
rv = prompt->BeforeUnloadCheck(docShell->GetBrowsingContext(),
|
|
aPermitUnload);
|
|
mInPermitUnloadPrompt = false;
|
|
|
|
// If the prompt aborted, we tell our consumer that it is not allowed
|
|
// to unload the page. One reason that prompts abort is that the user
|
|
// performed some action that caused the page to unload while our prompt
|
|
// was active. In those cases we don't want our consumer to also unload
|
|
// the page.
|
|
//
|
|
// XXX: Are there other cases where prompts can abort? Is it ok to
|
|
// prevent unloading the page in those cases?
|
|
if (NS_FAILED(rv)) {
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::ONBEFOREUNLOAD_PROMPT_ACTION, 2);
|
|
*aPermitUnload = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
mozilla::Telemetry::Accumulate(
|
|
mozilla::Telemetry::ONBEFOREUNLOAD_PROMPT_ACTION,
|
|
(*aPermitUnload ? 1 : 0));
|
|
// If the user decided to go ahead, make sure not to prompt the user again
|
|
// by toggling the internal prompting bool to false:
|
|
if (*aPermitUnload) {
|
|
*aPermitUnloadFlags = eDontPromptAndUnload;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (docShell) {
|
|
int32_t childCount;
|
|
docShell->GetInProcessChildCount(&childCount);
|
|
|
|
for (int32_t i = 0; i < childCount && *aPermitUnload; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> item;
|
|
docShell->GetInProcessChildAt(i, getter_AddRefs(item));
|
|
|
|
nsCOMPtr<nsIDocShell> docShell(do_QueryInterface(item));
|
|
|
|
if (docShell) {
|
|
nsCOMPtr<nsIContentViewer> cv;
|
|
docShell->GetContentViewer(getter_AddRefs(cv));
|
|
|
|
if (cv) {
|
|
cv->PermitUnloadInternal(aPermitUnloadFlags, aPermitUnload);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetBeforeUnloadFiring(bool* aInEvent) {
|
|
*aInEvent = mInPermitUnload;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetInPermitUnload(bool* aInEvent) {
|
|
*aInEvent = mInPermitUnloadPrompt;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::PageHide(bool aIsUnload) {
|
|
AutoDontWarnAboutSyncXHR disableSyncXHRWarning;
|
|
|
|
mHidden = true;
|
|
|
|
if (!mDocument) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
if (aIsUnload) {
|
|
// Poke the GC. The window might be collectable garbage now.
|
|
nsJSContext::PokeGC(JS::GCReason::PAGE_HIDE,
|
|
mDocument->GetWrapperPreserveColor(),
|
|
StaticPrefs::javascript_options_gc_delay() * 2);
|
|
}
|
|
|
|
mDocument->OnPageHide(!aIsUnload, nullptr);
|
|
|
|
// inform the window so that the focus state is reset.
|
|
NS_ENSURE_STATE(mDocument);
|
|
nsPIDOMWindowOuter* window = mDocument->GetWindow();
|
|
if (window) window->PageHidden();
|
|
|
|
if (aIsUnload) {
|
|
// if Destroy() was called during OnPageHide(), mDocument is nullptr.
|
|
NS_ENSURE_STATE(mDocument);
|
|
|
|
// First, get the window from the document...
|
|
nsPIDOMWindowOuter* window = mDocument->GetWindow();
|
|
|
|
if (!window) {
|
|
// Fail if no window is available...
|
|
NS_WARNING("window not set for document!");
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#unload-a-document
|
|
// Create an RAII object on mDocument that will increment the
|
|
// should-ignore-opens-during-unload counter on initialization
|
|
// and decrement it again when it goes out of scope.
|
|
IgnoreOpensDuringUnload ignoreOpens(mDocument);
|
|
|
|
// Now, fire an Unload event to the document...
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
WidgetEvent event(true, eUnload);
|
|
event.mFlags.mBubbles = false;
|
|
// XXX Dispatching to |window|, but using |document| as the target.
|
|
event.mTarget = mDocument;
|
|
|
|
// Never permit popups from the unload handler, no matter how we get
|
|
// here.
|
|
AutoPopupStatePusher popupStatePusher(PopupBlocker::openAbused, true);
|
|
|
|
Document::PageUnloadingEventTimeStamp timestamp(mDocument);
|
|
|
|
EventDispatcher::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) {
|
|
viewer->SetIsHidden(false);
|
|
Document* doc = viewer->GetDocument();
|
|
if (doc) {
|
|
doc->SetContainer(static_cast<nsDocShell*>(aShell));
|
|
}
|
|
if (PresShell* presShell = viewer->GetPresShell()) {
|
|
presShell->SetForwardingContainer(WeakPtr<nsDocShell>());
|
|
}
|
|
}
|
|
|
|
// Now recurse through the children
|
|
int32_t childCount;
|
|
aShell->GetInProcessChildCount(&childCount);
|
|
for (int32_t i = 0; i < childCount; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> childItem;
|
|
aShell->GetInProcessChildAt(i, getter_AddRefs(childItem));
|
|
nsCOMPtr<nsIDocShell> shell = do_QueryInterface(childItem);
|
|
AttachContainerRecurse(shell);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::Open(nsISupports* aState, nsISHEntry* aSHEntry) {
|
|
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
if (mDocument) {
|
|
mDocument->SetContainer(mContainer);
|
|
}
|
|
|
|
nsresult rv = InitInternal(mParentWidget, aState, nullptr, mBounds, false);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
mHidden = false;
|
|
|
|
if (mPresShell) mPresShell->SetForwardingContainer(WeakPtr<nsDocShell>());
|
|
|
|
// 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) {
|
|
nsCOMPtr<nsIDocShell> shell = do_QueryInterface(item);
|
|
AttachContainerRecurse(shell);
|
|
}
|
|
}
|
|
|
|
SyncParentSubDocMap();
|
|
|
|
ReinitializeFocusListener();
|
|
|
|
// 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();
|
|
MOZ_ASSERT(vm, "no view manager");
|
|
nsView* v = vm->GetRootView();
|
|
MOZ_ASSERT(v, "no root view");
|
|
MOZ_ASSERT(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 (mSHEntry) {
|
|
if (mBFCachePreventionObserver) {
|
|
mBFCachePreventionObserver->Disconnect();
|
|
}
|
|
mBFCachePreventionObserver = new BFCachePreventionObserver(mDocument);
|
|
mDocument->AddMutationObserver(mBFCachePreventionObserver);
|
|
}
|
|
|
|
#if defined(NS_PRINTING) && defined(NS_PRINT_PREVIEW)
|
|
// Turn scripting back on
|
|
// after PrintPreview had turned it off
|
|
if (GetIsPrintPreview() && mPrintJob) {
|
|
mPrintJob->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 (mPrintJob && !mClosingWhilePrinting) {
|
|
mClosingWhilePrinting = true;
|
|
} else
|
|
#endif
|
|
{
|
|
// out of band cleanup of docshell
|
|
mDocument->SetScriptGlobalObject(nullptr);
|
|
|
|
if (!mSHEntry && mDocument) mDocument->RemovedFromDocShell();
|
|
}
|
|
|
|
RemoveFocusListener();
|
|
return NS_OK;
|
|
}
|
|
|
|
static void DetachContainerRecurse(nsIDocShell* aShell) {
|
|
// Unhook this docshell's presentation
|
|
aShell->SynchronizeLayoutHistoryState();
|
|
nsCOMPtr<nsIContentViewer> viewer;
|
|
aShell->GetContentViewer(getter_AddRefs(viewer));
|
|
if (viewer) {
|
|
if (Document* doc = viewer->GetDocument()) {
|
|
doc->SetContainer(nullptr);
|
|
}
|
|
if (PresShell* presShell = viewer->GetPresShell()) {
|
|
auto weakShell = static_cast<nsDocShell*>(aShell);
|
|
presShell->SetForwardingContainer(weakShell);
|
|
}
|
|
}
|
|
|
|
// Now recurse through the children
|
|
int32_t childCount;
|
|
aShell->GetInProcessChildCount(&childCount);
|
|
for (int32_t i = 0; i < childCount; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> childItem;
|
|
aShell->GetInProcessChildAt(i, getter_AddRefs(childItem));
|
|
nsCOMPtr<nsIDocShell> shell = do_QueryInterface(childItem);
|
|
DetachContainerRecurse(shell);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::Destroy() {
|
|
NS_ASSERTION(mDocument, "No document in Destroy()!");
|
|
|
|
// 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 (mDestroyBlockedCount != 0) {
|
|
return NS_OK;
|
|
}
|
|
|
|
#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 (mPrintJob) {
|
|
if (mPrintJob->CheckBeforeDestroy()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
// Dispatch the 'afterprint' event now, if pending:
|
|
mAutoBeforeAndAfterPrint = nullptr;
|
|
#endif
|
|
|
|
// We want to make sure to disconnect mBFCachePreventionObserver before we
|
|
// Sanitize() below.
|
|
if (mBFCachePreventionObserver) {
|
|
mBFCachePreventionObserver->Disconnect();
|
|
mBFCachePreventionObserver = nullptr;
|
|
}
|
|
|
|
if (mSHEntry && mDocument && !mDocument->IsBFCachingAllowed()) {
|
|
// Just drop the SHEntry now and pretend like we never even tried to bfcache
|
|
// this viewer. This should only happen when someone calls
|
|
// DisallowBFCaching() after CanSavePresentation() already ran. Ensure that
|
|
// the SHEntry has no viewer and its state is synced up. We want to do this
|
|
// via a stack reference, in case those calls mess with our members.
|
|
nsCOMPtr<nsISHEntry> shEntry = std::move(mSHEntry);
|
|
shEntry->SetContentViewer(nullptr);
|
|
shEntry->SyncPresentationState();
|
|
}
|
|
|
|
// 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;
|
|
|
|
// Remove our root view from the view hierarchy.
|
|
if (mPresShell) {
|
|
nsViewManager* vm = mPresShell->GetViewManager();
|
|
if (vm) {
|
|
nsView* rootView = vm->GetRootView();
|
|
|
|
if (rootView) {
|
|
nsView* rootViewParent = rootView->GetParent();
|
|
if (rootViewParent) {
|
|
nsView* subdocview = rootViewParent->GetParent();
|
|
if (subdocview) {
|
|
nsIFrame* f = subdocview->GetFrame();
|
|
if (f) {
|
|
nsSubDocumentFrame* s = do_QueryFrame(f);
|
|
if (s) {
|
|
s->ClearDisplayItems();
|
|
}
|
|
}
|
|
}
|
|
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 =
|
|
std::move(mSHEntry); // we'll need this below
|
|
|
|
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();
|
|
shEntry->SynchronizeLayoutHistoryState();
|
|
|
|
// Shut down accessibility for the document before we start to tear it down.
|
|
#ifdef ACCESSIBILITY
|
|
if (mPresShell) {
|
|
a11y::DocAccessible* docAcc = mPresShell->GetDocAccessible();
|
|
if (docAcc) {
|
|
docAcc->Shutdown();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// 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 (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) {
|
|
nsCOMPtr<nsIDocShell> shell = do_QueryInterface(item);
|
|
DetachContainerRecurse(shell);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// The document was not put in the bfcache
|
|
|
|
// Protect against pres shell destruction running scripts and re-entrantly
|
|
// creating a new presentation.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
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 (mPrintJob) {
|
|
RefPtr<nsPrintJob> printJob = std::move(mPrintJob);
|
|
# ifdef NS_PRINT_PREVIEW
|
|
if (printJob->IsDoingPrintPreview()) {
|
|
printJob->FinishPrintPreview();
|
|
}
|
|
# endif
|
|
printJob->Destroy();
|
|
MOZ_ASSERT(!mPrintJob,
|
|
"mPrintJob shouldn't be recreated while destroying it");
|
|
}
|
|
#endif
|
|
|
|
// Avoid leaking the old viewer.
|
|
if (mPreviousViewer) {
|
|
mPreviousViewer->Destroy();
|
|
mPreviousViewer = nullptr;
|
|
}
|
|
|
|
mDeviceContext = nullptr;
|
|
|
|
if (mPresContext) {
|
|
DestroyPresContext();
|
|
}
|
|
|
|
mWindow = nullptr;
|
|
mViewManager = nullptr;
|
|
mContainer = WeakPtr<nsDocShell>();
|
|
|
|
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.
|
|
RefPtr<PresShell> presShell = mPresShell; // bug 378682
|
|
presShell->UnsuppressPainting();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetDOMDocument(Document** aResult) {
|
|
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
|
|
nsCOMPtr<Document> document = mDocument;
|
|
document.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
Document* nsDocumentViewer::GetDocument() { return mDocument; }
|
|
|
|
nsresult nsDocumentViewer::SetDocument(Document* 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;
|
|
|
|
return SetDocumentInternal(aDocument, false);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetDocumentInternal(Document* aDocument,
|
|
bool aForceReuseInnerWindow) {
|
|
MOZ_ASSERT(aDocument);
|
|
|
|
// Set new container
|
|
aDocument->SetContainer(mContainer);
|
|
|
|
if (mDocument != aDocument) {
|
|
if (aForceReuseInnerWindow) {
|
|
// Transfer the navigation timing information to the new document, since
|
|
// we're keeping the same inner and hence should really have the same
|
|
// timing information.
|
|
aDocument->SetNavigationTiming(mDocument->GetNavigationTiming());
|
|
}
|
|
|
|
if (mDocument->IsStaticDocument()) {
|
|
mDocument->Destroy();
|
|
}
|
|
|
|
// Clear the list of old child docshells. Child docshells for the new
|
|
// document will be constructed as frames are created.
|
|
if (!aDocument->IsStaticDocument()) {
|
|
nsCOMPtr<nsIDocShell> node(mContainer);
|
|
if (node) {
|
|
int32_t count;
|
|
node->GetInProcessChildCount(&count);
|
|
for (int32_t i = 0; i < count; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> child;
|
|
node->GetInProcessChildAt(0, getter_AddRefs(child));
|
|
node->RemoveChild(child);
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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<nsPIDOMWindowOuter> window =
|
|
mContainer ? mContainer->GetWindow() : nullptr;
|
|
if (window) {
|
|
nsresult rv =
|
|
window->SetNewDocument(aDocument, nullptr, aForceReuseInnerWindow);
|
|
if (NS_FAILED(rv)) {
|
|
Destroy();
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult rv = SyncParentSubDocMap();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Replace the current pres shell with a new shell for the new document
|
|
|
|
// Protect against pres shell destruction running scripts and re-entrantly
|
|
// creating a new presentation.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
if (mPresShell) {
|
|
DestroyPresShell();
|
|
}
|
|
|
|
if (mPresContext) {
|
|
DestroyPresContext();
|
|
|
|
mWindow = nullptr;
|
|
rv = InitInternal(mParentWidget, nullptr, nullptr, mBounds, true, true,
|
|
false);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
PresShell* nsDocumentViewer::GetPresShell() { return mPresShell; }
|
|
|
|
nsPresContext* nsDocumentViewer::GetPresContext() { return mPresContext; }
|
|
|
|
nsViewManager* nsDocumentViewer::GetViewManager() { return mViewManager; }
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetBounds(nsIntRect& aResult) {
|
|
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
|
|
aResult = mBounds;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContentViewer* nsDocumentViewer::GetPreviousViewer() {
|
|
return mPreviousViewer;
|
|
}
|
|
|
|
void 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.
|
|
//
|
|
// Make sure we hold a strong ref to prevViewer here, since we'll
|
|
// tell aViewer to drop it.
|
|
nsCOMPtr<nsIContentViewer> prevViewer = aViewer->GetPreviousViewer();
|
|
if (prevViewer) {
|
|
aViewer->SetPreviousViewer(nullptr);
|
|
aViewer->Destroy();
|
|
return SetPreviousViewer(prevViewer);
|
|
}
|
|
}
|
|
|
|
mPreviousViewer = aViewer;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetBoundsWithFlags(const nsIntRect& aBounds,
|
|
uint32_t aFlags) {
|
|
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
bool boundsChanged = !mBounds.IsEqualEdges(aBounds);
|
|
mBounds = aBounds;
|
|
|
|
if (mWindow && !mAttachedToParent) {
|
|
// Resize the widget, but don't trigger repaint. Layout will generate
|
|
// repaint requests during reflow.
|
|
mWindow->Resize(aBounds.x, aBounds.y, aBounds.width, aBounds.height, false);
|
|
} else if (mPresContext && mViewManager) {
|
|
// Ensure presContext's deviceContext is up to date, as we sometimes get
|
|
// here before a resolution-change notification has been fully handled
|
|
// during display configuration changes, especially when there are lots
|
|
// of windows/widgets competing to handle the notifications.
|
|
// (See bug 1154125.)
|
|
if (mPresContext->DeviceContext()->CheckDPIChange()) {
|
|
mPresContext->UIResolutionChanged();
|
|
}
|
|
|
|
int32_t p2a = mPresContext->AppUnitsPerDevPixel();
|
|
nscoord width = NSIntPixelsToAppUnits(mBounds.width, p2a);
|
|
nscoord height = NSIntPixelsToAppUnits(mBounds.height, p2a);
|
|
nsView* rootView = mViewManager->GetRootView();
|
|
if (boundsChanged && rootView) {
|
|
nsRect viewDims = rootView->GetDimensions();
|
|
// If the view/frame tree and prescontext visible area already has the new
|
|
// size but we did not, then it's likely that we got reflowed in response
|
|
// to a call to GetContentSize. Thus there is a disconnect between the
|
|
// size on the document viewer/docshell/containing widget and view
|
|
// tree/frame tree/prescontext visible area). SetWindowDimensions compares
|
|
// to the root view dimenstions to determine if it needs to do anything;
|
|
// if they are the same as the new size it won't do anything, but we still
|
|
// need to invalidate because what we want to draw to the screen has
|
|
// changed.
|
|
if (viewDims.width == width && viewDims.height == height) {
|
|
nsIFrame* f = rootView->GetFrame();
|
|
if (f) {
|
|
f->InvalidateFrame();
|
|
}
|
|
}
|
|
}
|
|
|
|
mViewManager->SetWindowDimensions(
|
|
width, height, !!(aFlags & nsIContentViewer::eDelayResize));
|
|
}
|
|
|
|
// 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::SetBounds(const nsIntRect& aBounds) {
|
|
return SetBoundsWithFlags(aBounds, 0);
|
|
}
|
|
|
|
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(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->GetInProcessSameTypeRootTreeItem(getter_AddRefs(root));
|
|
nsCOMPtr<nsIWebNavigation> webNav = do_QueryInterface(root);
|
|
RefPtr<ChildSHistory> history = webNav->GetSessionHistory();
|
|
if (history) {
|
|
int32_t prevIndex, loadedIndex;
|
|
nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(treeItem);
|
|
docShell->GetPreviousEntryIndex(&prevIndex);
|
|
docShell->GetLoadedEntryIndex(&loadedIndex);
|
|
MOZ_LOG(gPageCacheLog, LogLevel::Verbose,
|
|
("About to evict content viewers: prev=%d, loaded=%d",
|
|
prevIndex, loadedIndex));
|
|
history->LegacySHistory()->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);
|
|
}
|
|
}
|
|
|
|
// Hold on to the document so we can use it after the script blocker below
|
|
// has been released (which might re-entrantly call into other
|
|
// nsDocumentViewer methods).
|
|
nsCOMPtr<Document> document = mDocument;
|
|
|
|
if (mDocument && !mPresShell) {
|
|
// The InitPresentationStuff call below requires a script blocker, because
|
|
// its PresShell::Initialize call can cause scripts to run and therefore
|
|
// re-entrant calls to nsDocumentViewer methods to be made.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
NS_ASSERTION(!mWindow, "Window already created but no presshell?");
|
|
|
|
nsCOMPtr<nsIBaseWindow> base_win(mContainer);
|
|
if (base_win) {
|
|
base_win->GetParentWidget(&mParentWidget);
|
|
if (mParentWidget) {
|
|
// GetParentWidget AddRefs, but mParentWidget is weak
|
|
mParentWidget->Release();
|
|
}
|
|
}
|
|
|
|
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) {
|
|
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) {
|
|
RefPtr<PresShell> presShell = mPresShell; // bug 378682
|
|
presShell->UnsuppressPainting();
|
|
}
|
|
}
|
|
|
|
// Notify observers that a new page has been shown. This will get run
|
|
// from the event loop after we actually draw the page.
|
|
RefPtr<nsDocumentShownDispatcher> event =
|
|
new nsDocumentShownDispatcher(document);
|
|
document->Dispatch(TaskCategory::Other, event.forget());
|
|
|
|
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(mContainer);
|
|
if (docShell) {
|
|
#ifdef DEBUG
|
|
nsCOMPtr<nsIContentViewer> currentViewer;
|
|
docShell->GetContentViewer(getter_AddRefs(currentViewer));
|
|
MOZ_ASSERT(currentViewer == this);
|
|
#endif
|
|
nsCOMPtr<nsILayoutHistoryState> layoutState;
|
|
mPresShell->CaptureHistoryState(getter_AddRefs(layoutState));
|
|
}
|
|
|
|
// Do not run ScriptRunners queued by DestroyPresShell() in the intermediate
|
|
// state before we're done destroying PresShell, PresContext, ViewManager,
|
|
// etc.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
DestroyPresShell();
|
|
|
|
DestroyPresContext();
|
|
|
|
mViewManager = nullptr;
|
|
mWindow = nullptr;
|
|
mDeviceContext = nullptr;
|
|
mParentWidget = nullptr;
|
|
|
|
nsCOMPtr<nsIBaseWindow> base_win(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 || (mPrintJob && mPrintJob->GetIsPrinting())) {
|
|
*aCanClose = false;
|
|
mDeferredWindowClose = true;
|
|
} else
|
|
#endif
|
|
*aCanClose = true;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::ClearHistoryEntry() {
|
|
if (mDocument) {
|
|
nsJSContext::PokeGC(JS::GCReason::PAGE_HIDE,
|
|
mDocument->GetWrapperPreserveColor(),
|
|
StaticPrefs::javascript_options_gc_delay() * 2);
|
|
}
|
|
|
|
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() {
|
|
if (!mContainer) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShell> docShell(mContainer);
|
|
nsCOMPtr<nsPIDOMWindowOuter> pwin(docShell->GetWindow());
|
|
if (!pwin) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<Element> containerElement = pwin->GetFrameElementInternal();
|
|
if (!containerElement) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsIFrame* subdocFrame = containerElement->GetPrimaryFrame();
|
|
if (!subdocFrame) {
|
|
// XXX Silenced by default in bug 1175289
|
|
LAYOUT_WARNING("Subdocument container has no frame");
|
|
return nullptr;
|
|
}
|
|
|
|
// Check subdocFrame just to be safe. If this somehow fails we treat that as
|
|
// display:none, the document is not displayed.
|
|
if (!subdocFrame->IsSubDocumentFrame()) {
|
|
NS_WARNING_ASSERTION(subdocFrame->Type() == LayoutFrameType::None,
|
|
"Subdocument container has non-subdocument frame");
|
|
return nullptr;
|
|
}
|
|
|
|
NS_ASSERTION(subdocFrame->GetView(), "Subdoc frames must have views");
|
|
return static_cast<nsSubDocumentFrame*>(subdocFrame)->EnsureInnerView();
|
|
}
|
|
|
|
nsresult nsDocumentViewer::CreateDeviceContext(nsView* aContainerView) {
|
|
MOZ_ASSERT(!mPresShell && !mWindow,
|
|
"This will screw up our existing presentation");
|
|
MOZ_ASSERT(mDocument, "Gotta have a document here");
|
|
|
|
Document* 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
|
|
nsPresContext* ctx = doc->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.
|
|
mozilla::dom::Selection* nsDocumentViewer::GetDocumentSelection() {
|
|
if (!mPresShell) {
|
|
return nullptr;
|
|
}
|
|
|
|
return mPresShell->GetCurrentSelection(SelectionType::eNormal);
|
|
}
|
|
|
|
/* ============================================================================
|
|
* nsIContentViewerEdit
|
|
* ============================================================================
|
|
*/
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::ClearSelection() {
|
|
// use nsCopySupport::GetSelectionForCopy() ?
|
|
RefPtr<mozilla::dom::Selection> selection = GetDocumentSelection();
|
|
if (!selection) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
ErrorResult rv;
|
|
selection->CollapseToStart(rv);
|
|
return rv.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::SelectAll() {
|
|
// XXX this is a temporary implementation copied from nsWebShell
|
|
// for now. I think Document and friends should have some helper
|
|
// functions to make this easier.
|
|
|
|
// use nsCopySupport::GetSelectionForCopy() ?
|
|
RefPtr<mozilla::dom::Selection> selection = GetDocumentSelection();
|
|
if (!selection) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!mDocument) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsINode> bodyNode;
|
|
if (mDocument->IsHTMLOrXHTML()) {
|
|
// XXXbz why not just do GetBody() for all documents, then GetRootElement()
|
|
// if GetBody() is null?
|
|
bodyNode = mDocument->GetBody();
|
|
} else {
|
|
bodyNode = mDocument->GetRootElement();
|
|
}
|
|
if (!bodyNode) return NS_ERROR_FAILURE;
|
|
|
|
ErrorResult err;
|
|
selection->RemoveAllRanges(err);
|
|
if (err.Failed()) {
|
|
return err.StealNSResult();
|
|
}
|
|
|
|
mozilla::dom::Selection::AutoUserInitiated userSelection(selection);
|
|
selection->SelectAllChildren(*bodyNode, err);
|
|
return err.StealNSResult();
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::CopySelection() {
|
|
RefPtr<PresShell> presShell = mPresShell;
|
|
nsCopySupport::FireClipboardEvent(eCopy, nsIClipboard::kGlobalClipboard,
|
|
presShell, nullptr);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::CopyLinkLocation() {
|
|
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
|
|
nsCOMPtr<nsINode> node = GetPopupLinkNode();
|
|
// 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
|
|
return clipboard->CopyString(locationText);
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::CopyImage(int32_t aCopyFlags) {
|
|
NS_ENSURE_TRUE(mPresShell, NS_ERROR_NOT_INITIALIZED);
|
|
nsCOMPtr<nsIImageLoadingContent> node = GetPopupImageNode();
|
|
// make noise if we're not in an image
|
|
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsILoadContext> loadContext(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;
|
|
}
|
|
|
|
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:
|
|
RefPtr<Selection> sel;
|
|
if (selectionOnly) {
|
|
sel = nsCopySupport::GetSelectionForCopy(mDocument);
|
|
NS_ENSURE_TRUE(sel, NS_ERROR_FAILURE);
|
|
|
|
if (sel->IsCollapsed()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
// call the copy code
|
|
return nsCopySupport::GetContents(nsDependentCString(mimeType), 0, sel,
|
|
mDocument, aOutValue);
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::GetCanGetContents(bool* aCanGetContents) {
|
|
NS_ENSURE_ARG_POINTER(aCanGetContents);
|
|
*aCanGetContents = false;
|
|
NS_ENSURE_STATE(mDocument);
|
|
*aCanGetContents = nsCopySupport::CanCopy(mDocument);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::SetCommandNode(nsINode* aNode) {
|
|
Document* document = GetDocument();
|
|
NS_ENSURE_STATE(document);
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> window(document->GetWindow());
|
|
NS_ENSURE_TRUE(window, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
nsCOMPtr<nsPIWindowRoot> root = window->GetTopWindowRoot();
|
|
NS_ENSURE_STATE(root);
|
|
|
|
root->SetPopupNode(aNode);
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsDocumentViewer::PropagateToPresContextsHelper(CallChildFunc aChildFunc,
|
|
PresContextFunc aPcFunc) {
|
|
CallChildren(aChildFunc);
|
|
|
|
if (mDocument) {
|
|
auto resourceDoc = [aPcFunc](Document& aResourceDoc) {
|
|
if (nsPresContext* pc = aResourceDoc.GetPresContext()) {
|
|
aPcFunc(pc);
|
|
}
|
|
return CallState::Continue;
|
|
};
|
|
mDocument->EnumerateExternalResources(resourceDoc);
|
|
}
|
|
|
|
if (mPresContext) {
|
|
aPcFunc(mPresContext);
|
|
}
|
|
}
|
|
|
|
void nsDocumentViewer::CallChildren(CallChildFunc aFunc) {
|
|
nsCOMPtr<nsIDocShell> docShell(mContainer);
|
|
if (!docShell) {
|
|
return;
|
|
}
|
|
int32_t n = 0;
|
|
docShell->GetInProcessChildCount(&n);
|
|
for (int32_t i = 0; i < n; i++) {
|
|
nsCOMPtr<nsIDocShellTreeItem> child;
|
|
docShell->GetInProcessChildAt(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) {
|
|
aFunc(static_cast<nsDocumentViewer*>(childCV.get()));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetDeviceFullZoomForTest(float* aDeviceFullZoom) {
|
|
NS_ENSURE_ARG_POINTER(aDeviceFullZoom);
|
|
nsPresContext* pc = GetPresContext();
|
|
*aDeviceFullZoom = pc ? pc->GetDeviceFullZoom() : 1.0;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetOverrideDPPX(float aDPPX) {
|
|
// If we don't have a document, then we need to bail.
|
|
if (!mDocument) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mOverrideDPPX = aDPPX;
|
|
|
|
auto childFn = [aDPPX](nsDocumentViewer* aChild) {
|
|
aChild->SetOverrideDPPX(aDPPX);
|
|
};
|
|
auto presContextFn = [aDPPX](nsPresContext* aPc) {
|
|
aPc->SetOverrideDPPX(aDPPX);
|
|
};
|
|
PropagateToPresContextsHelper(childFn, presContextFn);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetOverrideDPPX(float* aDPPX) {
|
|
NS_ENSURE_ARG_POINTER(aDPPX);
|
|
|
|
nsPresContext* pc = GetPresContext();
|
|
*aDPPX = pc ? pc->GetOverrideDPPX() : mOverrideDPPX;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetAuthorStyleDisabled(bool aStyleDisabled) {
|
|
if (mPresShell) {
|
|
mPresShell->SetAuthorStyleDisabled(aStyleDisabled);
|
|
}
|
|
|
|
auto children = [aStyleDisabled](nsDocumentViewer* aChild) {
|
|
aChild->SetAuthorStyleDisabled(aStyleDisabled);
|
|
};
|
|
|
|
CallChildren(children);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetAuthorStyleDisabled(bool* aStyleDisabled) {
|
|
if (mPresShell) {
|
|
*aStyleDisabled = mPresShell->GetAuthorStyleDisabled();
|
|
} else {
|
|
*aStyleDisabled = false;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsDocumentViewer::EmulateMediumInternal(nsAtom* aMedia) {
|
|
auto childFn = [&](nsDocumentViewer* aChild) {
|
|
aChild->EmulateMediumInternal(aMedia);
|
|
};
|
|
auto presContextFn = [&](nsPresContext* aPc) { aPc->EmulateMedium(aMedia); };
|
|
PropagateToPresContextsHelper(childFn, presContextFn);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::EmulateMedium(const nsAString& aMediaType) {
|
|
nsAutoString mediaType;
|
|
nsContentUtils::ASCIIToLower(aMediaType, mediaType);
|
|
RefPtr<nsAtom> media = NS_Atomize(mediaType);
|
|
|
|
EmulateMediumInternal(media);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::StopEmulatingMedium() {
|
|
EmulateMediumInternal(nullptr);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::EmulatePrefersColorScheme(PrefersColorScheme aScheme) {
|
|
auto ToStyle = [](PrefersColorScheme aScheme) -> ColorSchemeOverride {
|
|
switch (aScheme) {
|
|
case PREFERS_COLOR_SCHEME_LIGHT:
|
|
return Some(StylePrefersColorScheme::Light);
|
|
case PREFERS_COLOR_SCHEME_DARK:
|
|
return Some(StylePrefersColorScheme::Dark);
|
|
case PREFERS_COLOR_SCHEME_NO_PREFERENCE:
|
|
return Some(StylePrefersColorScheme::NoPreference);
|
|
case PREFERS_COLOR_SCHEME_NONE:
|
|
return Nothing();
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unknown prefers color scheme value?");
|
|
return Nothing();
|
|
};
|
|
};
|
|
|
|
EmulatePrefersColorSchemeInternal(ToStyle(aScheme));
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsDocumentViewer::EmulatePrefersColorSchemeInternal(
|
|
const ColorSchemeOverride& aOverride) {
|
|
auto childFn = [&aOverride](nsDocumentViewer* aChild) {
|
|
aChild->EmulatePrefersColorSchemeInternal(aOverride);
|
|
};
|
|
auto presContextFn = [&aOverride](nsPresContext* aPc) {
|
|
aPc->SetOverridePrefersColorScheme(aOverride);
|
|
};
|
|
PropagateToPresContextsHelper(childFn, presContextFn);
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::GetForceCharacterSet(
|
|
nsACString& aForceCharacterSet) {
|
|
auto encoding = nsDocumentViewer::GetForceCharset();
|
|
if (encoding) {
|
|
encoding->Name(aForceCharacterSet);
|
|
} else {
|
|
aForceCharacterSet.Truncate();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/* [noscript,notxpcom] Encoding getForceCharset (); */
|
|
NS_IMETHODIMP_(const Encoding*)
|
|
nsDocumentViewer::GetForceCharset() { return mForceCharacterSet; }
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetForceCharacterSet(const nsACString& aForceCharacterSet) {
|
|
// The empty string means no hint.
|
|
const Encoding* encoding = nullptr;
|
|
if (!aForceCharacterSet.IsEmpty()) {
|
|
if (!(encoding = Encoding::ForLabel(aForceCharacterSet))) {
|
|
// Reject unknown labels
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
}
|
|
nsDocumentViewer::SetForceCharset(encoding);
|
|
return NS_OK;
|
|
}
|
|
|
|
/* [noscript,notxpcom] void setForceCharset (in Encoding aEncoding); */
|
|
NS_IMETHODIMP_(void)
|
|
nsDocumentViewer::SetForceCharset(const Encoding* aEncoding) {
|
|
mForceCharacterSet = aEncoding;
|
|
auto childFn = [aEncoding](nsDocumentViewer* aChild) {
|
|
aChild->SetForceCharset(aEncoding);
|
|
};
|
|
// now set the force char set on all children of mContainer
|
|
CallChildren(childFn);
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::GetHintCharacterSet(
|
|
nsACString& aHintCharacterSet) {
|
|
auto encoding = nsDocumentViewer::GetHintCharset();
|
|
if (encoding) {
|
|
encoding->Name(aHintCharacterSet);
|
|
} else {
|
|
aHintCharacterSet.Truncate();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/* [noscript,notxpcom] Encoding getHintCharset (); */
|
|
NS_IMETHODIMP_(const Encoding*)
|
|
nsDocumentViewer::GetHintCharset() {
|
|
if (kCharsetUninitialized == mHintCharsetSource) {
|
|
return nullptr;
|
|
}
|
|
// this can't possibly be right. we can't set a value just because somebody
|
|
// got a related value!
|
|
// mHintCharsetSource = kCharsetUninitialized;
|
|
return mHintCharset;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::GetHintCharacterSetSource(
|
|
int32_t* aHintCharacterSetSource) {
|
|
NS_ENSURE_ARG_POINTER(aHintCharacterSetSource);
|
|
*aHintCharacterSetSource = mHintCharsetSource;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetHintCharacterSetSource(int32_t aHintCharacterSetSource) {
|
|
mHintCharsetSource = aHintCharacterSetSource;
|
|
auto childFn = [aHintCharacterSetSource](nsDocumentViewer* aChild) {
|
|
aChild->SetHintCharacterSetSource(aHintCharacterSetSource);
|
|
};
|
|
// now set the force char set on all children of mContainer
|
|
CallChildren(childFn);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetHintCharacterSet(const nsACString& aHintCharacterSet) {
|
|
// The empty string means no hint.
|
|
const Encoding* encoding = nullptr;
|
|
if (!aHintCharacterSet.IsEmpty()) {
|
|
if (!(encoding = Encoding::ForLabel(aHintCharacterSet))) {
|
|
// Reject unknown labels
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
}
|
|
nsDocumentViewer::SetHintCharset(encoding);
|
|
return NS_OK;
|
|
}
|
|
|
|
/* [noscript,notxpcom] void setHintCharset (in Encoding aEncoding); */
|
|
NS_IMETHODIMP_(void)
|
|
nsDocumentViewer::SetHintCharset(const Encoding* aEncoding) {
|
|
mHintCharset = aEncoding;
|
|
auto childFn = [aEncoding](nsDocumentViewer* aChild) {
|
|
aChild->SetHintCharset(aEncoding);
|
|
};
|
|
// now set the force char set on all children of mContainer
|
|
CallChildren(childFn);
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::AppendSubtree(
|
|
nsTArray<nsCOMPtr<nsIContentViewer>>& aArray) {
|
|
aArray.AppendElement(this);
|
|
auto childFn = [&aArray](nsDocumentViewer* aChild) {
|
|
aChild->AppendSubtree(aArray);
|
|
};
|
|
CallChildren(childFn);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::PausePainting() {
|
|
CallChildren([](nsDocumentViewer* aChild) { aChild->PausePainting(); });
|
|
|
|
if (PresShell* presShell = GetPresShell()) {
|
|
presShell->PausePainting();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::ResumePainting() {
|
|
CallChildren([](nsDocumentViewer* aChild) { aChild->ResumePainting(); });
|
|
|
|
if (PresShell* presShell = GetPresShell()) {
|
|
presShell->ResumePainting();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsDocumentViewer::GetContentSizeInternal(int32_t* aWidth,
|
|
int32_t* aHeight,
|
|
nscoord aMaxWidth,
|
|
nscoord aMaxHeight) {
|
|
NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
RefPtr<PresShell> presShell = GetPresShell();
|
|
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(FlushType::Layout);
|
|
|
|
nsIFrame* root = presShell->GetRootFrame();
|
|
NS_ENSURE_TRUE(root, NS_ERROR_FAILURE);
|
|
|
|
WritingMode wm = root->GetWritingMode();
|
|
|
|
nscoord prefISize;
|
|
{
|
|
RefPtr<gfxContext> rcx(presShell->CreateReferenceRenderingContext());
|
|
nscoord maxISize = wm.IsVertical() ? aMaxHeight : aMaxWidth;
|
|
prefISize = std::min(root->GetPrefISize(rcx), maxISize);
|
|
}
|
|
|
|
// We should never intentionally get here with this sentinel value, but it's
|
|
// possible that a document with huge sizes might inadvertently have a
|
|
// prefISize that exactly matches NS_UNCONSTRAINEDSIZE.
|
|
// Just bail if that happens.
|
|
NS_ENSURE_TRUE(prefISize != NS_UNCONSTRAINEDSIZE, NS_ERROR_FAILURE);
|
|
|
|
nscoord height = wm.IsVertical() ? prefISize : aMaxHeight;
|
|
nscoord width = wm.IsVertical() ? aMaxWidth : prefISize;
|
|
nsresult rv =
|
|
presShell->ResizeReflow(width, height, ResizeReflowOptions::BSizeLimit);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
RefPtr<nsPresContext> presContext = GetPresContext();
|
|
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
|
|
|
|
// Protect against bogus returns here
|
|
nsRect shellArea = presContext->GetVisibleArea();
|
|
NS_ENSURE_TRUE(shellArea.width != NS_UNCONSTRAINEDSIZE &&
|
|
shellArea.height != NS_UNCONSTRAINEDSIZE,
|
|
NS_ERROR_FAILURE);
|
|
|
|
// Ceil instead of rounding here, so we can actually guarantee showing all the
|
|
// content.
|
|
*aWidth = std::ceil(presContext->AppUnitsToFloatDevPixels(shellArea.width));
|
|
*aHeight = std::ceil(presContext->AppUnitsToFloatDevPixels(shellArea.height));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetContentSize(int32_t* aWidth, int32_t* aHeight) {
|
|
NS_ENSURE_TRUE(mContainer, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
RefPtr<BrowsingContext> bc = mContainer->GetBrowsingContext();
|
|
NS_ENSURE_TRUE(bc, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
// It's only valid to access this from a top frame. Doesn't work from
|
|
// sub-frames.
|
|
NS_ENSURE_TRUE(bc->IsTop(), NS_ERROR_FAILURE);
|
|
|
|
return GetContentSizeInternal(aWidth, aHeight, NS_UNCONSTRAINEDSIZE,
|
|
NS_UNCONSTRAINEDSIZE);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetContentSizeConstrained(int32_t aMaxWidth,
|
|
int32_t aMaxHeight, int32_t* aWidth,
|
|
int32_t* aHeight) {
|
|
RefPtr<nsPresContext> presContext = GetPresContext();
|
|
NS_ENSURE_TRUE(presContext, NS_ERROR_FAILURE);
|
|
|
|
nscoord maxWidth = NS_UNCONSTRAINEDSIZE;
|
|
nscoord maxHeight = NS_UNCONSTRAINEDSIZE;
|
|
if (aMaxWidth > 0) {
|
|
maxWidth = presContext->DevPixelsToAppUnits(aMaxWidth);
|
|
}
|
|
if (aMaxHeight > 0) {
|
|
maxHeight = presContext->DevPixelsToAppUnits(aMaxHeight);
|
|
}
|
|
|
|
return GetContentSizeInternal(aWidth, aHeight, maxWidth, maxHeight);
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsDocViewerSelectionListener, nsISelectionListener)
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
already_AddRefed<nsINode> nsDocumentViewer::GetPopupNode() {
|
|
// get the document
|
|
Document* document = GetDocument();
|
|
NS_ENSURE_TRUE(document, nullptr);
|
|
|
|
// get the private dom window
|
|
nsCOMPtr<nsPIDOMWindowOuter> window(document->GetWindow());
|
|
NS_ENSURE_TRUE(window, nullptr);
|
|
if (window) {
|
|
nsCOMPtr<nsPIWindowRoot> root = window->GetTopWindowRoot();
|
|
NS_ENSURE_TRUE(root, nullptr);
|
|
|
|
// get the popup node
|
|
nsCOMPtr<nsINode> node = root->GetPopupNode();
|
|
#ifdef MOZ_XUL
|
|
if (!node) {
|
|
nsPIDOMWindowOuter* rootWindow = root->GetWindow();
|
|
if (rootWindow) {
|
|
nsCOMPtr<Document> rootDoc = rootWindow->GetExtantDoc();
|
|
if (rootDoc) {
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) {
|
|
node = pm->GetLastTriggerPopupNode(rootDoc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
return node.forget();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// GetPopupLinkNode: return popup link node or fail
|
|
already_AddRefed<nsINode> nsDocumentViewer::GetPopupLinkNode() {
|
|
// find popup node
|
|
nsCOMPtr<nsINode> node = GetPopupNode();
|
|
|
|
// 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) {
|
|
return node.forget();
|
|
}
|
|
}
|
|
|
|
// get our parent and keep trying...
|
|
node = node->GetParentNode();
|
|
}
|
|
|
|
// if we have no node, fail
|
|
return nullptr;
|
|
}
|
|
|
|
// GetPopupLinkNode: return popup image node or fail
|
|
already_AddRefed<nsIImageLoadingContent> nsDocumentViewer::GetPopupImageNode() {
|
|
// find popup node
|
|
nsCOMPtr<nsINode> node = GetPopupNode();
|
|
nsCOMPtr<nsIImageLoadingContent> img = do_QueryInterface(node);
|
|
return img.forget();
|
|
}
|
|
|
|
/*
|
|
* 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<nsINode> node = GetPopupLinkNode();
|
|
if (!node) {
|
|
return 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 = GetPopupImageNode();
|
|
if (!node) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Make sure there is a URI assigned. This allows <input type="image"> to
|
|
// be an image but rejects other <input> types. This matches what
|
|
// nsContextMenu.js does.
|
|
nsCOMPtr<nsIURI> uri;
|
|
node->GetCurrentURI(getter_AddRefs(uri));
|
|
if (uri) {
|
|
// if we made it here, we're in an image
|
|
*aInImage = true;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocViewerSelectionListener::NotifySelectionChanged(
|
|
Document*, Selection*, int16_t aReason) {
|
|
if (!mDocViewer) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// get the selection state
|
|
RefPtr<mozilla::dom::Selection> selection =
|
|
mDocViewer->GetDocumentSelection();
|
|
if (!selection) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
Document* theDoc = mDocViewer->GetDocument();
|
|
if (!theDoc) return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> domWindow = theDoc->GetWindow();
|
|
if (!domWindow) return NS_ERROR_FAILURE;
|
|
|
|
bool selectionCollapsed = selection->IsCollapsed();
|
|
// We only call UpdateCommands when the selection changes from collapsed to
|
|
// non-collapsed or vice versa, however we skip the initializing collapse. We
|
|
// might need another update string for simple selection changes, but that
|
|
// would be expenseive.
|
|
if (mSelectionWasCollapsed != selectionCollapsed) {
|
|
domWindow->UpdateCommands(NS_LITERAL_STRING("select"), selection, aReason);
|
|
mSelectionWasCollapsed = selectionCollapsed;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsDocViewerFocusListener
|
|
NS_IMPL_ISUPPORTS(nsDocViewerFocusListener, nsIDOMEventListener)
|
|
|
|
nsresult nsDocViewerFocusListener::HandleEvent(Event* aEvent) {
|
|
NS_ENSURE_STATE(mDocViewer);
|
|
|
|
RefPtr<PresShell> presShell = mDocViewer->GetPresShell();
|
|
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
|
|
|
|
RefPtr<nsFrameSelection> selection =
|
|
presShell->GetLastFocusedFrameSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_FAILURE);
|
|
auto selectionStatus = selection->GetDisplaySelection();
|
|
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) {
|
|
selection->SetDisplaySelection(nsISelectionController::SELECTION_ON);
|
|
selection->RepaintSelection(SelectionType::eNormal);
|
|
}
|
|
} else {
|
|
MOZ_ASSERT(eventType.EqualsLiteral("blur"), "Unexpected event type");
|
|
// If selection was on, disable it.
|
|
if (selectionStatus == nsISelectionController::SELECTION_ON ||
|
|
selectionStatus == nsISelectionController::SELECTION_ATTENTION) {
|
|
selection->SetDisplaySelection(
|
|
nsISelectionController::SELECTION_DISABLED);
|
|
selection->RepaintSelection(SelectionType::eNormal);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/** ---------------------------------------------------
|
|
* From nsIWebBrowserPrint
|
|
*/
|
|
|
|
#ifdef NS_PRINTING
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::Print(nsIPrintSettings* aPrintSettings,
|
|
nsIWebProgressListener* aWebProgressListener) {
|
|
if (!mContainer) {
|
|
PR_PL(("Container was destroyed yet we are still trying to use it!"));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShell> docShell(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
|
|
auto busyFlags = docShell->GetBusyFlags();
|
|
if (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;
|
|
|
|
if (mPrintJob) {
|
|
mPrintJob->FirePrintingErrorEvent(rv);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
// Dispatch 'beforeprint' event and ensure 'afterprint' will be dispatched:
|
|
MOZ_ASSERT(!mAutoBeforeAndAfterPrint,
|
|
"We don't want to dispatch nested beforeprint/afterprint");
|
|
auto autoBeforeAndAfterPrint =
|
|
MakeUnique<AutoPrintEventDispatcher>(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();
|
|
|
|
// Our call to nsPrintJob::Print() may cause mPrintJob to be
|
|
// Release()'d in Destroy(). Therefore, we need to grab the instance with
|
|
// a local variable, so that it won't be deleted during its own method.
|
|
RefPtr<nsPrintJob> printJob = mPrintJob;
|
|
if (!printJob) {
|
|
NS_ENSURE_STATE(mDeviceContext);
|
|
printJob = new nsPrintJob();
|
|
|
|
rv = printJob->Initialize(this, mContainer, mDocument,
|
|
float(AppUnitsPerCSSInch()) /
|
|
float(mDeviceContext->AppUnitsPerDevPixel()));
|
|
if (NS_FAILED(rv)) {
|
|
printJob->Destroy();
|
|
return rv;
|
|
}
|
|
mPrintJob = printJob;
|
|
}
|
|
if (printJob->HasPrintCallbackCanvas()) {
|
|
// Postpone the 'afterprint' event until after the mozPrintCallback
|
|
// callbacks have been called:
|
|
mAutoBeforeAndAfterPrint = std::move(autoBeforeAndAfterPrint);
|
|
}
|
|
rv = printJob->Print(mDocument, aPrintSettings, aWebProgressListener);
|
|
if (NS_FAILED(rv)) {
|
|
OnDonePrinting();
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::PrintPreview(nsIPrintSettings* aPrintSettings,
|
|
mozIDOMWindowProxy* aChildDOMWin,
|
|
nsIWebProgressListener* aWebProgressListener) {
|
|
# ifdef NS_PRINT_PREVIEW
|
|
MOZ_ASSERT(IsInitializedForPrintPreview(),
|
|
"For print preview nsIWebBrowserPrint must be from "
|
|
"docshell.initOrReusePrintPreviewViewer!");
|
|
|
|
NS_ENSURE_ARG_POINTER(aChildDOMWin);
|
|
nsresult rv = NS_OK;
|
|
|
|
if (GetIsPrinting()) {
|
|
nsPrintJob::CloseProgressDialog(aWebProgressListener);
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShell> docShell(mContainer);
|
|
if (!docShell || !mDeviceContext) {
|
|
PR_PL(("Can't Print Preview without device context and docshell"));
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> window = do_QueryInterface(aChildDOMWin);
|
|
MOZ_ASSERT(window);
|
|
nsCOMPtr<Document> doc = window->GetDoc();
|
|
NS_ENSURE_STATE(doc);
|
|
|
|
// Dispatch 'beforeprint' event and ensure 'afterprint' will be dispatched:
|
|
// XXX Currently[1] when the user switches between portrait and landscape
|
|
// mode in print preview, we re-enter this function before
|
|
// mAutoBeforeAndAfterPrint (if set) is cleared to dispatch the 'afterprint'
|
|
// event. To avoid sending multiple 'beforeprint'/'afterprint' events we
|
|
// must avoid creating a new AutoPrintEventDispatcher object here if we
|
|
// already have one saved in mAutoBeforeAndAfterPrint.
|
|
// [1] Until PDF.js is removed (though, maybe after that as well).
|
|
UniquePtr<AutoPrintEventDispatcher> autoBeforeAndAfterPrint;
|
|
if (!mAutoBeforeAndAfterPrint) {
|
|
autoBeforeAndAfterPrint = MakeUnique<AutoPrintEventDispatcher>(doc);
|
|
}
|
|
NS_ENSURE_STATE(!GetIsPrinting());
|
|
// beforeprint event may have caused ContentViewer to be shutdown.
|
|
NS_ENSURE_STATE(mContainer);
|
|
NS_ENSURE_STATE(mDeviceContext);
|
|
|
|
// Our call to nsPrintJob::PrintPreview() may cause mPrintJob to be
|
|
// Release()'d in Destroy(). Therefore, we need to grab the instance with
|
|
// a local variable, so that it won't be deleted during its own method.
|
|
RefPtr<nsPrintJob> printJob = mPrintJob;
|
|
if (!printJob) {
|
|
printJob = new nsPrintJob();
|
|
|
|
rv = printJob->Initialize(this, mContainer, doc,
|
|
float(AppUnitsPerCSSInch()) /
|
|
float(mDeviceContext->AppUnitsPerDevPixel()));
|
|
if (NS_FAILED(rv)) {
|
|
printJob->Destroy();
|
|
return rv;
|
|
}
|
|
mPrintJob = printJob;
|
|
}
|
|
if (autoBeforeAndAfterPrint && printJob->HasPrintCallbackCanvas()) {
|
|
// Postpone the 'afterprint' event until after the mozPrintCallback
|
|
// callbacks have been called:
|
|
mAutoBeforeAndAfterPrint = std::move(autoBeforeAndAfterPrint);
|
|
}
|
|
rv = printJob->PrintPreview(doc, aPrintSettings, aWebProgressListener);
|
|
if (NS_FAILED(rv)) {
|
|
OnDonePrinting();
|
|
}
|
|
return rv;
|
|
# else
|
|
return NS_ERROR_FAILURE;
|
|
# endif // NS_PRINT_PREVIEW
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::PrintPreviewScrollToPage(int16_t aType, int32_t aPageNum) {
|
|
if (!GetIsPrintPreview() || mPrintJob->GetIsCreatingPrintPreview())
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsIScrollableFrame* sf =
|
|
mPrintJob->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), ScrollMode::Instant);
|
|
return NS_OK;
|
|
}
|
|
|
|
// in PP mPrtPreview->mPrintObject->mSeqFrame is null
|
|
nsIFrame* seqFrame = nullptr;
|
|
int32_t pageCount = 0;
|
|
if (NS_FAILED(mPrintJob->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
|
|
for (nsIFrame* pageFrame : seqFrame->PrincipalChildList()) {
|
|
nsRect pageRect = pageFrame->GetRect();
|
|
if (pageRect.Contains(pageRect.x, pt.y)) {
|
|
currentPage = pageFrame;
|
|
}
|
|
if (pageNum == aPageNum) {
|
|
fndPageFrame = pageFrame;
|
|
break;
|
|
}
|
|
pageNum++;
|
|
}
|
|
|
|
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(mPrintJob->GetPrintPreviewScale() *
|
|
fndPageFrame->GetPosition().y);
|
|
sf->ScrollTo(nsPoint(pt.x, newYPosn), ScrollMode::Instant);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetGlobalPrintSettings(
|
|
nsIPrintSettings** aGlobalPrintSettings) {
|
|
return nsPrintJob::GetGlobalPrintSettings(aGlobalPrintSettings);
|
|
}
|
|
|
|
// XXX This always returns false for subdocuments
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetDoingPrint(bool* aDoingPrint) {
|
|
NS_ENSURE_ARG_POINTER(aDoingPrint);
|
|
|
|
// XXX shouldn't this be GetDoingPrint() ?
|
|
*aDoingPrint = mPrintJob ? mPrintJob->IsDoingPrintPreview() : false;
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX This always returns false for subdocuments
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetDoingPrintPreview(bool* aDoingPrintPreview) {
|
|
NS_ENSURE_ARG_POINTER(aDoingPrintPreview);
|
|
|
|
*aDoingPrintPreview = mPrintJob ? mPrintJob->IsDoingPrintPreview() : false;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetCurrentPrintSettings(
|
|
nsIPrintSettings** aCurrentPrintSettings) {
|
|
NS_ENSURE_ARG_POINTER(aCurrentPrintSettings);
|
|
|
|
*aCurrentPrintSettings = nullptr;
|
|
NS_ENSURE_TRUE(mPrintJob, NS_ERROR_FAILURE);
|
|
|
|
*aCurrentPrintSettings = mPrintJob->GetCurrentPrintSettings().take();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::Cancel() {
|
|
NS_ENSURE_TRUE(mPrintJob, NS_ERROR_FAILURE);
|
|
return mPrintJob->Cancel();
|
|
}
|
|
|
|
# ifdef NS_PRINT_PREVIEW
|
|
// Reset ESM focus for all descendent doc shells.
|
|
static void ResetFocusState(nsIDocShell* aDocShell) {
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (!fm) {
|
|
return;
|
|
}
|
|
|
|
nsTArray<RefPtr<nsIDocShell>> docShells;
|
|
aDocShell->GetAllDocShellsInSubtree(nsIDocShellTreeItem::typeContent,
|
|
nsIDocShell::ENUMERATE_FORWARDS,
|
|
docShells);
|
|
|
|
for (const auto& currentContainer : docShells) {
|
|
nsCOMPtr<nsPIDOMWindowOuter> win = do_GetInterface(currentContainer);
|
|
if (win) {
|
|
fm->ClearFocus(win);
|
|
}
|
|
}
|
|
}
|
|
# endif // NS_PRINT_PREVIEW
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::ExitPrintPreview() {
|
|
NS_ENSURE_TRUE(mPrintJob, NS_ERROR_FAILURE);
|
|
|
|
if (GetIsPrinting()) {
|
|
// Block exiting the print preview window if we're in the middle of an
|
|
// actual print.
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!GetIsPrintPreview()) {
|
|
NS_ERROR("Wow, we should never get here!");
|
|
return NS_OK;
|
|
}
|
|
|
|
# ifdef NS_PRINT_PREVIEW
|
|
mPrintJob->TurnScriptingOn(true);
|
|
mPrintJob->Destroy();
|
|
mPrintJob = nullptr;
|
|
|
|
// Nowadays we use a static clone document for printing, and print preview is
|
|
// in a separate tab that gets closed after print preview finishes. Probably
|
|
// nothing below this line is necessary anymore.
|
|
|
|
SetIsPrintPreview(false);
|
|
|
|
nsCOMPtr<nsIDocShell> docShell(mContainer);
|
|
ResetFocusState(docShell);
|
|
|
|
SetOverrideDPPX(mOverrideDPPX);
|
|
Show();
|
|
# endif // NS_PRINT_PREVIEW
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetPrintPreviewNumPages(int32_t* aPrintPreviewNumPages) {
|
|
NS_ENSURE_ARG_POINTER(aPrintPreviewNumPages);
|
|
NS_ENSURE_TRUE(mPrintJob, NS_ERROR_FAILURE);
|
|
|
|
*aPrintPreviewNumPages = mPrintJob->GetPrintPreviewNumPages();
|
|
return *aPrintPreviewNumPages > 0 ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetIsIFrameSelected(bool* aIsIFrameSelected) {
|
|
*aIsIFrameSelected = false;
|
|
NS_ENSURE_TRUE(mPrintJob, NS_ERROR_FAILURE);
|
|
|
|
*aIsIFrameSelected = mPrintJob->IsIFrameSelected();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetIsRangeSelection(bool* aIsRangeSelection) {
|
|
*aIsRangeSelection = false;
|
|
NS_ENSURE_TRUE(mPrintJob, NS_ERROR_FAILURE);
|
|
|
|
*aIsRangeSelection = mPrintJob->IsRangeSelection();
|
|
return NS_OK;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// Printing/Print Preview Helpers
|
|
//----------------------------------------------------------------------------------
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// Walks the document tree and tells each DocShell whether Printing/PP is
|
|
// happening
|
|
void nsDocumentViewer::SetIsPrintingInDocShellTree(
|
|
nsIDocShellTreeItem* aParentNode, bool aIsPrintingOrPP, bool aStartAtTop) {
|
|
nsCOMPtr<nsIDocShellTreeItem> parentItem(aParentNode);
|
|
|
|
// find top of "same parent" tree
|
|
if (aStartAtTop) {
|
|
if (aIsPrintingOrPP) {
|
|
while (parentItem) {
|
|
nsCOMPtr<nsIDocShellTreeItem> parent;
|
|
parentItem->GetInProcessSameTypeParent(getter_AddRefs(parent));
|
|
if (!parent) {
|
|
break;
|
|
}
|
|
parentItem = parent;
|
|
}
|
|
mTopContainerWhilePrinting = do_GetWeakReference(parentItem);
|
|
} else {
|
|
parentItem = do_QueryReferent(mTopContainerWhilePrinting);
|
|
}
|
|
}
|
|
|
|
// Check to see if the DocShell's ContentViewer is printing/PP
|
|
nsCOMPtr<nsIDocShell> 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->GetInProcessChildCount(&n);
|
|
for (int32_t i = 0; i < n; i++) {
|
|
nsCOMPtr<nsIDocShellTreeItem> child;
|
|
aParentNode->GetInProcessChildAt(i, getter_AddRefs(child));
|
|
NS_ASSERTION(child, "child isn't nsIDocShell");
|
|
if (child) {
|
|
SetIsPrintingInDocShellTree(child, aIsPrintingOrPP, false);
|
|
}
|
|
}
|
|
}
|
|
#endif // NS_PRINTING
|
|
|
|
bool nsDocumentViewer::ShouldAttachToTopLevel() {
|
|
if (!mParentWidget) {
|
|
return false;
|
|
}
|
|
|
|
if (!mContainer) {
|
|
return false;
|
|
}
|
|
|
|
// We always attach when using puppet widgets
|
|
if (nsIWidget::UsePuppetWidgets()) {
|
|
return true;
|
|
}
|
|
|
|
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK) || \
|
|
defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_UIKIT)
|
|
if (!mPresContext) {
|
|
return false;
|
|
}
|
|
|
|
// On windows, in the parent process we also attach, but just to
|
|
// chrome items
|
|
nsWindowType winType = mParentWidget->WindowType();
|
|
if ((winType == eWindowType_toplevel || winType == eWindowType_dialog ||
|
|
winType == eWindowType_invisible) &&
|
|
mPresContext->IsChrome()) {
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
//------------------------------------------------------------
|
|
// XXX this always returns false for subdocuments
|
|
bool nsDocumentViewer::GetIsPrinting() {
|
|
#ifdef NS_PRINTING
|
|
if (mPrintJob) {
|
|
return mPrintJob->GetIsPrinting();
|
|
}
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
//------------------------------------------------------------
|
|
// Notification from the PrintJob 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<nsIDocShell> docShell(mContainer);
|
|
if (docShell || !aIsPrinting) {
|
|
SetIsPrintingInDocShellTree(docShell, aIsPrinting, true);
|
|
} else {
|
|
NS_WARNING("Did you close a window before printing?");
|
|
}
|
|
|
|
if (!aIsPrinting) {
|
|
// Dispatch the 'afterprint' event now, if pending:
|
|
mAutoBeforeAndAfterPrint = nullptr;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
//------------------------------------------------------------
|
|
// The PrintJob holds the current value
|
|
// this called from inside the DocViewer.
|
|
// XXX it always returns false for subdocuments
|
|
bool nsDocumentViewer::GetIsPrintPreview() {
|
|
#ifdef NS_PRINTING
|
|
if (mPrintJob) {
|
|
return mPrintJob->GetIsPrintPreview();
|
|
}
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
//------------------------------------------------------------
|
|
// Notification from the PrintJob 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<nsIDocShell> docShell(mContainer);
|
|
if (docShell || !aIsPrintPreview) {
|
|
SetIsPrintingInDocShellTree(docShell, aIsPrintPreview, true);
|
|
}
|
|
if (!aIsPrintPreview) {
|
|
// Dispatch the 'afterprint' event now, if pending:
|
|
mAutoBeforeAndAfterPrint = nullptr;
|
|
}
|
|
#endif
|
|
|
|
// Protect against pres shell destruction running scripts.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
if (!aIsPrintPreview) {
|
|
InvalidatePotentialSubDocDisplayItem();
|
|
if (mPresShell) {
|
|
DestroyPresShell();
|
|
}
|
|
mWindow = nullptr;
|
|
mViewManager = nullptr;
|
|
mPresContext = nullptr;
|
|
mPresShell = nullptr;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// nsIDocumentViewerPrint IFace
|
|
//----------------------------------------------------------------------------------
|
|
|
|
//------------------------------------------------------------
|
|
void nsDocumentViewer::IncrementDestroyBlockedCount() {
|
|
++mDestroyBlockedCount;
|
|
}
|
|
|
|
void nsDocumentViewer::DecrementDestroyBlockedCount() {
|
|
--mDestroyBlockedCount;
|
|
}
|
|
|
|
//------------------------------------------------------------
|
|
// This called ONLY when printing has completed and the DV
|
|
// is being notified that it should get rid of the nsPrintJob.
|
|
//
|
|
// BUT, if we are in Print Preview then we want to ignore the
|
|
// notification (we do not get rid of the nsPrintJob)
|
|
//
|
|
// 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 Destroy() has been called during calling nsPrintJob::Print() or
|
|
// nsPrintJob::PrintPreview(), mPrintJob is already nullptr here.
|
|
// So, the following clean up does nothing in such case.
|
|
// (Do we need some of this for that case?)
|
|
if (mPrintJob) {
|
|
RefPtr<nsPrintJob> printJob = mPrintJob;
|
|
if (GetIsPrintPreview()) {
|
|
printJob->DestroyPrintingData();
|
|
} else {
|
|
mPrintJob = nullptr;
|
|
printJob->Destroy();
|
|
}
|
|
|
|
// We are done printing, now cleanup
|
|
if (mDeferredWindowClose) {
|
|
mDeferredWindowClose = false;
|
|
if (mContainer) {
|
|
if (nsCOMPtr<nsPIDOMWindowOuter> win = mContainer->GetWindow()) {
|
|
win->Close();
|
|
}
|
|
}
|
|
} else if (mClosingWhilePrinting) {
|
|
if (mDocument) {
|
|
mDocument->Destroy();
|
|
mDocument = nullptr;
|
|
}
|
|
mClosingWhilePrinting = false;
|
|
}
|
|
}
|
|
#endif // NS_PRINTING && NS_PRINT_PREVIEW
|
|
}
|
|
|
|
NS_IMETHODIMP nsDocumentViewer::SetPageModeForTesting(
|
|
bool aPageMode, nsIPrintSettings* aPrintSettings) {
|
|
// XXX Page mode is only partially working; it's currently used for
|
|
// reftests that require a paginated context
|
|
mIsPageMode = aPageMode;
|
|
|
|
// The DestroyPresShell call requires a script blocker, since the
|
|
// PresShell::Destroy call it does can cause scripts to run, which could
|
|
// re-entrantly call methods on the nsDocumentViewer.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
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);
|
|
}
|
|
NS_ENSURE_SUCCESS(InitInternal(mParentWidget, nullptr, nullptr, mBounds, true,
|
|
false, false),
|
|
NS_ERROR_FAILURE);
|
|
|
|
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 = !mHidden;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::GetIsHidden(bool* aHidden) {
|
|
*aHidden = mHidden;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsDocumentViewer::SetIsHidden(bool aHidden) {
|
|
mHidden = aHidden;
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsDocumentViewer::DestroyPresShell() {
|
|
// We assert this because destroying the pres shell could otherwise cause
|
|
// re-entrancy into nsDocumentViewer methods, and all callers of
|
|
// DestroyPresShell need to do other cleanup work afterwards before it
|
|
// is safe for those re-entrant method calls to be made.
|
|
MOZ_ASSERT(!nsContentUtils::IsSafeToRunScript(),
|
|
"DestroyPresShell must only be called when scripts are blocked");
|
|
|
|
// Break circular reference (or something)
|
|
mPresShell->EndObservingDocument();
|
|
|
|
RefPtr<mozilla::dom::Selection> selection = GetDocumentSelection();
|
|
if (selection && mSelectionListener)
|
|
selection->RemoveSelectionListener(mSelectionListener);
|
|
|
|
mPresShell->Destroy();
|
|
mPresShell = nullptr;
|
|
}
|
|
|
|
void nsDocumentViewer::InvalidatePotentialSubDocDisplayItem() {
|
|
if (mViewManager) {
|
|
if (nsView* rootView = mViewManager->GetRootView()) {
|
|
if (nsView* rootViewParent = rootView->GetParent()) {
|
|
if (nsView* subdocview = rootViewParent->GetParent()) {
|
|
if (nsIFrame* f = subdocview->GetFrame()) {
|
|
if (nsSubDocumentFrame* s = do_QueryFrame(f)) {
|
|
s->MarkNeedsDisplayItemRebuild();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsDocumentViewer::DestroyPresContext() {
|
|
InvalidatePotentialSubDocDisplayItem();
|
|
mPresContext = nullptr;
|
|
}
|
|
|
|
bool nsDocumentViewer::IsInitializedForPrintPreview() {
|
|
return mInitializedForPrintPreview;
|
|
}
|
|
|
|
void nsDocumentViewer::InitializeForPrintPreview() {
|
|
mInitializedForPrintPreview = true;
|
|
}
|
|
|
|
void nsDocumentViewer::SetPrintPreviewPresentation(nsViewManager* aViewManager,
|
|
nsPresContext* aPresContext,
|
|
PresShell* aPresShell) {
|
|
// Protect against pres shell destruction running scripts and re-entrantly
|
|
// creating a new presentation.
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
if (mPresShell) {
|
|
DestroyPresShell();
|
|
}
|
|
|
|
mWindow = nullptr;
|
|
mViewManager = aViewManager;
|
|
mPresContext = aPresContext;
|
|
mPresShell = aPresShell;
|
|
|
|
if (ShouldAttachToTopLevel()) {
|
|
DetachFromTopLevelWidget();
|
|
nsView* rootView = mViewManager->GetRootView();
|
|
rootView->AttachToTopLevelWidget(mParentWidget);
|
|
mAttachedToParent = true;
|
|
}
|
|
}
|
|
|
|
// 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(ToSupports(mDocument), "document-shown",
|
|
nullptr);
|
|
}
|
|
return NS_OK;
|
|
}
|