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/*
* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
* Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef Page_h
#define Page_h
#include "FindOptions.h"
#include "FrameLoaderTypes.h"
#include "LayoutMilestones.h"
#include "LayoutRect.h"
#include "PageThrottler.h"
#include "PageVisibilityState.h"
#include "Pagination.h"
#include "PlatformScreen.h"
#include "Region.h"
#include "ScrollTypes.h"
#include "SessionID.h"
#include "Supplementable.h"
#include "ViewState.h"
#include "ViewportArguments.h"
#include <memory>
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/Noncopyable.h>
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>
#if OS(SOLARIS)
#include <sys/time.h> // For time_t structure.
#endif
#if PLATFORM(COCOA)
#include <wtf/SchedulePair.h>
#endif
namespace JSC {
class Debugger;
}
namespace WebCore {
class AlternativeTextClient;
class BackForwardController;
class BackForwardClient;
class Chrome;
class ChromeClient;
class ClientRectList;
class Color;
class ContextMenuClient;
class ContextMenuController;
class DragCaretController;
class DragClient;
class DragController;
class EditorClient;
class FocusController;
class Frame;
class FrameLoaderClient;
class HistoryItem;
class UserInputBridge;
class InspectorClient;
class InspectorController;
class MainFrame;
class MediaCanStartListener;
class PageActivityAssertionToken;
class PageConsoleClient;
class PageDebuggable;
class PageGroup;
class PageThrottler;
class PlugInClient;
class PluginData;
class PluginViewBase;
class PointerLockController;
class ProgressTracker;
class ProgressTrackerClient;
class Range;
class RenderObject;
class RenderTheme;
class ReplayController;
class VisibleSelection;
class ScrollableArea;
class ScrollingCoordinator;
class Settings;
class StorageNamespace;
class UserContentController;
class ValidationMessageClient;
class ViewStateChangeObserver;
class VisitedLinkStore;
typedef uint64_t LinkHash;
enum FindDirection { FindDirectionForward, FindDirectionBackward };
class Page : public Supplementable<Page> {
WTF_MAKE_NONCOPYABLE(Page);
WTF_MAKE_FAST_ALLOCATED;
friend class Settings;
friend class PageThrottler;
public:
WEBCORE_EXPORT static void updateStyleForAllPagesAfterGlobalChangeInEnvironment();
WEBCORE_EXPORT static void clearPreviousItemFromAllPages(HistoryItem*);
// It is up to the platform to ensure that non-null clients are provided where required.
// FIXME: Rename this to PageConfiguration and move it to its own class.
struct PageClients {
WTF_MAKE_NONCOPYABLE(PageClients); WTF_MAKE_FAST_ALLOCATED;
public:
WEBCORE_EXPORT PageClients();
WEBCORE_EXPORT ~PageClients();
AlternativeTextClient* alternativeTextClient;
ChromeClient* chromeClient;
#if ENABLE(CONTEXT_MENUS)
ContextMenuClient* contextMenuClient;
#endif
EditorClient* editorClient;
DragClient* dragClient;
InspectorClient* inspectorClient;
PlugInClient* plugInClient;
ProgressTrackerClient* progressTrackerClient;
RefPtr<BackForwardClient> backForwardClient;
ValidationMessageClient* validationMessageClient;
FrameLoaderClient* loaderClientForMainFrame;
RefPtr<UserContentController> userContentController;
RefPtr<VisitedLinkStore> visitedLinkStore;
};
WEBCORE_EXPORT explicit Page(PageClients&);
WEBCORE_EXPORT ~Page();
WEBCORE_EXPORT uint64_t renderTreeSize() const;
void setNeedsRecalcStyleInAllFrames();
RenderTheme& theme() const { return *m_theme; }
WEBCORE_EXPORT ViewportArguments viewportArguments() const;
static void refreshPlugins(bool reload);
WEBCORE_EXPORT PluginData& pluginData() const;
WEBCORE_EXPORT void setCanStartMedia(bool);
bool canStartMedia() const { return m_canStartMedia; }
EditorClient* editorClient() const { return m_editorClient; }
PlugInClient* plugInClient() const { return m_plugInClient; }
MainFrame& mainFrame() { ASSERT(m_mainFrame); return *m_mainFrame; }
const MainFrame& mainFrame() const { ASSERT(m_mainFrame); return *m_mainFrame; }
bool openedByDOM() const;
void setOpenedByDOM();
WEBCORE_EXPORT void goToItem(HistoryItem*, FrameLoadType);
WEBCORE_EXPORT void setGroupName(const String&);
WEBCORE_EXPORT const String& groupName() const;
PageGroup& group();
PageGroup* groupPtr() { return m_group; } // can return 0
void incrementSubframeCount() { ++m_subframeCount; }
void decrementSubframeCount() { ASSERT(m_subframeCount); --m_subframeCount; }
int subframeCount() const { checkSubframeCountConsistency(); return m_subframeCount; }
#if ENABLE(REMOTE_INSPECTOR)
WEBCORE_EXPORT bool remoteInspectionAllowed() const;
WEBCORE_EXPORT void setRemoteInspectionAllowed(bool);
void remoteInspectorInformationDidChange() const;
#endif
Chrome& chrome() const { return *m_chrome; }
DragCaretController& dragCaretController() const { return *m_dragCaretController; }
#if ENABLE(DRAG_SUPPORT)
DragController& dragController() const { return *m_dragController; }
#endif
FocusController& focusController() const { return *m_focusController; }
#if ENABLE(CONTEXT_MENUS)
ContextMenuController& contextMenuController() const { return *m_contextMenuController; }
#endif
UserInputBridge& userInputBridge() const { return *m_userInputBridge; }
#if ENABLE(WEB_REPLAY)
ReplayController& replayController() const { return *m_replayController; }
#endif
#if ENABLE(INSPECTOR)
InspectorController& inspectorController() const { return *m_inspectorController; }
#endif
#if ENABLE(POINTER_LOCK)
PointerLockController& pointerLockController() const { return *m_pointerLockController; }
#endif
ValidationMessageClient* validationMessageClient() const { return m_validationMessageClient; }
WEBCORE_EXPORT ScrollingCoordinator* scrollingCoordinator();
WEBCORE_EXPORT String scrollingStateTreeAsText();
WEBCORE_EXPORT String synchronousScrollingReasonsAsText();
WEBCORE_EXPORT PassRefPtr<ClientRectList> nonFastScrollableRects(const Frame*);
Settings& settings() const { return *m_settings; }
ProgressTracker& progress() const { return *m_progress; }
BackForwardController& backForward() const { return *m_backForwardController; }
#if ENABLE(VIEW_MODE_CSS_MEDIA)
enum ViewMode {
ViewModeInvalid,
ViewModeWindowed,
ViewModeFloating,
ViewModeFullscreen,
ViewModeMaximized,
ViewModeMinimized
};
static ViewMode stringToViewMode(const String&);
ViewMode viewMode() const { return m_viewMode; }
WEBCORE_EXPORT void setViewMode(ViewMode);
#endif // ENABLE(VIEW_MODE_CSS_MEDIA)
void setTabKeyCyclesThroughElements(bool b) { m_tabKeyCyclesThroughElements = b; }
bool tabKeyCyclesThroughElements() const { return m_tabKeyCyclesThroughElements; }
WEBCORE_EXPORT bool findString(const String&, FindOptions);
WEBCORE_EXPORT PassRefPtr<Range> rangeOfString(const String&, Range*, FindOptions);
WEBCORE_EXPORT unsigned countFindMatches(const String&, FindOptions, unsigned maxMatchCount);
WEBCORE_EXPORT unsigned markAllMatchesForText(const String&, FindOptions, bool shouldHighlight, unsigned maxMatchCount);
WEBCORE_EXPORT void unmarkAllTextMatches();
// find all the Ranges for the matching text.
// Upon return, indexForSelection will be one of the following:
// 0 if there is no user selection
// the index of the first range after the user selection
// NoMatchAfterUserSelection if there is no matching text after the user selection.
enum { NoMatchAfterUserSelection = -1 };
WEBCORE_EXPORT void findStringMatchingRanges(const String&, FindOptions, int maxCount, Vector<RefPtr<Range>>&, int& indexForSelection);
#if PLATFORM(COCOA)
WEBCORE_EXPORT void addSchedulePair(PassRefPtr<SchedulePair>);
WEBCORE_EXPORT void removeSchedulePair(PassRefPtr<SchedulePair>);
SchedulePairHashSet* scheduledRunLoopPairs() { return m_scheduledRunLoopPairs.get(); }
std::unique_ptr<SchedulePairHashSet> m_scheduledRunLoopPairs;
#endif
WEBCORE_EXPORT const VisibleSelection& selection() const;
WEBCORE_EXPORT void setDefersLoading(bool);
bool defersLoading() const { return m_defersLoading; }
WEBCORE_EXPORT void clearUndoRedoOperations();
WEBCORE_EXPORT bool inLowQualityImageInterpolationMode() const;
WEBCORE_EXPORT void setInLowQualityImageInterpolationMode(bool = true);
float mediaVolume() const { return m_mediaVolume; }
WEBCORE_EXPORT void setMediaVolume(float);
WEBCORE_EXPORT void setPageScaleFactor(float scale, const IntPoint& origin, bool inStableState = true);
float pageScaleFactor() const { return m_pageScaleFactor; }
WEBCORE_EXPORT void setZoomedOutPageScaleFactor(float);
float zoomedOutPageScaleFactor() const { return m_zoomedOutPageScaleFactor; }
float deviceScaleFactor() const { return m_deviceScaleFactor; }
WEBCORE_EXPORT void setDeviceScaleFactor(float);
float topContentInset() const { return m_topContentInset; }
WEBCORE_EXPORT void setTopContentInset(float);
#if ENABLE(IOS_TEXT_AUTOSIZING)
float textAutosizingWidth() const { return m_textAutosizingWidth; }
void setTextAutosizingWidth(float textAutosizingWidth) { m_textAutosizingWidth = textAutosizingWidth; }
#endif
bool shouldSuppressScrollbarAnimations() const { return m_suppressScrollbarAnimations; }
WEBCORE_EXPORT void setShouldSuppressScrollbarAnimations(bool suppressAnimations);
void lockAllOverlayScrollbarsToHidden(bool lockOverlayScrollbars);
WEBCORE_EXPORT void setVerticalScrollElasticity(ScrollElasticity);
ScrollElasticity verticalScrollElasticity() const { return static_cast<ScrollElasticity>(m_verticalScrollElasticity); }
WEBCORE_EXPORT void setHorizontalScrollElasticity(ScrollElasticity);
ScrollElasticity horizontalScrollElasticity() const { return static_cast<ScrollElasticity>(m_horizontalScrollElasticity); }
// Page and FrameView both store a Pagination value. Page::pagination() is set only by API,
// and FrameView::pagination() is set only by CSS. Page::pagination() will affect all
// FrameViews in the page cache, but FrameView::pagination() only affects the current
// FrameView.
const Pagination& pagination() const { return m_pagination; }
WEBCORE_EXPORT void setPagination(const Pagination&);
WEBCORE_EXPORT unsigned pageCount() const;
// Notifications when the Page starts and stops being presented via a native window.
WEBCORE_EXPORT void setViewState(ViewState::Flags);
WEBCORE_EXPORT void setIsVisible(bool);
WEBCORE_EXPORT void setIsPrerender();
bool isVisible() const { return m_viewState & ViewState::IsVisible; }
// Notification that this Page was moved into or out of a native window.
WEBCORE_EXPORT void setIsInWindow(bool);
bool isInWindow() const { return m_viewState & ViewState::IsInWindow; }
void setIsClosing() { m_isClosing = true; }
bool isClosing() const { return m_isClosing; }
void addViewStateChangeObserver(ViewStateChangeObserver&);
void removeViewStateChangeObserver(ViewStateChangeObserver&);
WEBCORE_EXPORT void suspendScriptedAnimations();
WEBCORE_EXPORT void resumeScriptedAnimations();
bool scriptedAnimationsSuspended() const { return m_scriptedAnimationsSuspended; }
void userStyleSheetLocationChanged();
const String& userStyleSheet() const;
void dnsPrefetchingStateChanged();
void storageBlockingStateChanged();
void setDebugger(JSC::Debugger*);
JSC::Debugger* debugger() const { return m_debugger; }
static void removeAllVisitedLinks();
WEBCORE_EXPORT void invalidateStylesForAllLinks();
WEBCORE_EXPORT void invalidateStylesForLink(LinkHash);
StorageNamespace* sessionStorage(bool optionalCreate = true);
void setSessionStorage(PassRefPtr<StorageNamespace>);
bool hasCustomHTMLTokenizerTimeDelay() const;
double customHTMLTokenizerTimeDelay() const;
WEBCORE_EXPORT void setMemoryCacheClientCallsEnabled(bool);
bool areMemoryCacheClientCallsEnabled() const { return m_areMemoryCacheClientCallsEnabled; }
// Don't allow more than a certain number of frames in a page.
// This seems like a reasonable upper bound, and otherwise mutually
// recursive frameset pages can quickly bring the program to its knees
// with exponential growth in the number of frames.
static const int maxNumberOfFrames = 1000;
void setEditable(bool isEditable) { m_isEditable = isEditable; }
bool isEditable() { return m_isEditable; }
WEBCORE_EXPORT PageVisibilityState visibilityState() const;
WEBCORE_EXPORT void resumeAnimatingImages();
WEBCORE_EXPORT void addLayoutMilestones(LayoutMilestones);
WEBCORE_EXPORT void removeLayoutMilestones(LayoutMilestones);
LayoutMilestones requestedLayoutMilestones() const { return m_requestedLayoutMilestones; }
#if ENABLE(RUBBER_BANDING)
WEBCORE_EXPORT void addHeaderWithHeight(int);
WEBCORE_EXPORT void addFooterWithHeight(int);
#endif
int headerHeight() const { return m_headerHeight; }
int footerHeight() const { return m_footerHeight; }
WEBCORE_EXPORT Color pageExtendedBackgroundColor() const;
bool isCountingRelevantRepaintedObjects() const;
void startCountingRelevantRepaintedObjects();
void resetRelevantPaintedObjectCounter();
void addRelevantRepaintedObject(RenderObject*, const LayoutRect& objectPaintRect);
void addRelevantUnpaintedObject(RenderObject*, const LayoutRect& objectPaintRect);
WEBCORE_EXPORT void suspendActiveDOMObjectsAndAnimations();
WEBCORE_EXPORT void resumeActiveDOMObjectsAndAnimations();
#ifndef NDEBUG
void setIsPainting(bool painting) { m_isPainting = painting; }
bool isPainting() const { return m_isPainting; }
#endif
AlternativeTextClient* alternativeTextClient() const { return m_alternativeTextClient; }
bool hasSeenPlugin(const String& serviceType) const;
WEBCORE_EXPORT bool hasSeenAnyPlugin() const;
void sawPlugin(const String& serviceType);
void resetSeenPlugins();
bool hasSeenMediaEngine(const String& engineName) const;
bool hasSeenAnyMediaEngine() const;
void sawMediaEngine(const String& engineName);
void resetSeenMediaEngines();
PageThrottler& pageThrottler() { return m_pageThrottler; }
WEBCORE_EXPORT void enablePageThrottler();
PageConsoleClient& console() { return *m_consoleClient; }
void hiddenPageCSSAnimationSuspensionStateChanged();
#if ENABLE(VIDEO_TRACK)
void captionPreferencesChanged();
#endif
void incrementFrameHandlingBeforeUnloadEventCount();
void decrementFrameHandlingBeforeUnloadEventCount();
bool isAnyFrameHandlingBeforeUnloadEvent();
void setLastSpatialNavigationCandidateCount(unsigned count) { m_lastSpatialNavigationCandidatesCount = count; }
unsigned lastSpatialNavigationCandidateCount() const { return m_lastSpatialNavigationCandidatesCount; }
void setUserContentController(UserContentController*);
UserContentController* userContentController() { return m_userContentController.get(); }
VisitedLinkStore& visitedLinkStore();
WEBCORE_EXPORT SessionID sessionID() const;
WEBCORE_EXPORT void setSessionID(SessionID);
WEBCORE_EXPORT void enableLegacyPrivateBrowsing(bool privateBrowsingEnabled);
bool usesEphemeralSession() const { return m_sessionID.isEphemeral(); }
private:
WEBCORE_EXPORT void initGroup();
void setIsInWindowInternal(bool);
void setIsVisibleInternal(bool);
void setIsVisuallyIdleInternal(bool);
#if ASSERT_DISABLED
void checkSubframeCountConsistency() const { }
#else
void checkSubframeCountConsistency() const;
#endif
enum ShouldHighlightMatches { DoNotHighlightMatches, HighlightMatches };
enum ShouldMarkMatches { DoNotMarkMatches, MarkMatches };
unsigned findMatchesForText(const String&, FindOptions, unsigned maxMatchCount, ShouldHighlightMatches, ShouldMarkMatches);
MediaCanStartListener* takeAnyMediaCanStartListener();
void setMinimumTimerInterval(double);
double minimumTimerInterval() const;
double timerAlignmentInterval() const { return m_timerAlignmentInterval; }
Vector<Ref<PluginViewBase>> pluginViews();
void hiddenPageDOMTimerThrottlingStateChanged();
void setTimerThrottlingEnabled(bool);
const std::unique_ptr<Chrome> m_chrome;
const std::unique_ptr<DragCaretController> m_dragCaretController;
#if ENABLE(DRAG_SUPPORT)
const std::unique_ptr<DragController> m_dragController;
#endif
const std::unique_ptr<FocusController> m_focusController;
#if ENABLE(CONTEXT_MENUS)
const std::unique_ptr<ContextMenuController> m_contextMenuController;
#endif
const std::unique_ptr<UserInputBridge> m_userInputBridge;
#if ENABLE(WEB_REPLAY)
const std::unique_ptr<ReplayController> m_replayController;
#endif
#if ENABLE(INSPECTOR)
const std::unique_ptr<InspectorController> m_inspectorController;
#endif
#if ENABLE(POINTER_LOCK)
const std::unique_ptr<PointerLockController> m_pointerLockController;
#endif
WEBCORE_EXPORT RefPtr<ScrollingCoordinator> m_scrollingCoordinator;
const RefPtr<Settings> m_settings;
const std::unique_ptr<ProgressTracker> m_progress;
const std::unique_ptr<BackForwardController> m_backForwardController;
const RefPtr<MainFrame> m_mainFrame;
mutable RefPtr<PluginData> m_pluginData;
RefPtr<RenderTheme> m_theme;
EditorClient* m_editorClient;
PlugInClient* m_plugInClient;
ValidationMessageClient* m_validationMessageClient;
int m_subframeCount;
String m_groupName;
bool m_openedByDOM;
bool m_tabKeyCyclesThroughElements;
bool m_defersLoading;
unsigned m_defersLoadingCallCount;
bool m_inLowQualityInterpolationMode;
bool m_areMemoryCacheClientCallsEnabled;
float m_mediaVolume;
float m_pageScaleFactor;
float m_zoomedOutPageScaleFactor;
float m_deviceScaleFactor;
float m_topContentInset;
#if ENABLE(IOS_TEXT_AUTOSIZING)
float m_textAutosizingWidth;
#endif
bool m_suppressScrollbarAnimations;
unsigned m_verticalScrollElasticity : 2; // ScrollElasticity
unsigned m_horizontalScrollElasticity : 2; // ScrollElasticity
Pagination m_pagination;
String m_userStyleSheetPath;
mutable String m_userStyleSheet;
mutable bool m_didLoadUserStyleSheet;
mutable time_t m_userStyleSheetModificationTime;
std::unique_ptr<PageGroup> m_singlePageGroup;
PageGroup* m_group;
JSC::Debugger* m_debugger;
bool m_canStartMedia;
RefPtr<StorageNamespace> m_sessionStorage;
#if ENABLE(VIEW_MODE_CSS_MEDIA)
ViewMode m_viewMode;
#endif // ENABLE(VIEW_MODE_CSS_MEDIA)
double m_minimumTimerInterval;
bool m_timerThrottlingEnabled;
double m_timerAlignmentInterval;
bool m_isEditable;
bool m_isPrerender;
ViewState::Flags m_viewState;
LayoutMilestones m_requestedLayoutMilestones;
int m_headerHeight;
int m_footerHeight;
HashSet<RenderObject*> m_relevantUnpaintedRenderObjects;
Region m_topRelevantPaintedRegion;
Region m_bottomRelevantPaintedRegion;
Region m_relevantUnpaintedRegion;
bool m_isCountingRelevantRepaintedObjects;
#ifndef NDEBUG
bool m_isPainting;
#endif
AlternativeTextClient* m_alternativeTextClient;
bool m_scriptedAnimationsSuspended;
PageThrottler m_pageThrottler;
const std::unique_ptr<PageConsoleClient> m_consoleClient;
#if ENABLE(REMOTE_INSPECTOR)
const std::unique_ptr<PageDebuggable> m_inspectorDebuggable;
#endif
HashSet<String> m_seenPlugins;
HashSet<String> m_seenMediaEngines;
unsigned m_lastSpatialNavigationCandidatesCount;
unsigned m_framesHandlingBeforeUnloadEvent;
RefPtr<UserContentController> m_userContentController;
RefPtr<VisitedLinkStore> m_visitedLinkStore;
HashSet<ViewStateChangeObserver*> m_viewStateChangeObservers;
SessionID m_sessionID;
bool m_isClosing;
};
inline PageGroup& Page::group()
{
if (!m_group)
initGroup();
return *m_group;
}
} // namespace WebCore
#endif // Page_h
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