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/*
* Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
* 1999-2001 Lars Knoll <knoll@kde.org>
* 1999-2001 Antti Koivisto <koivisto@kde.org>
* 2000-2001 Simon Hausmann <hausmann@kde.org>
* 2000-2001 Dirk Mueller <mueller@kde.org>
* 2000 Stefan Schimanski <1Stein@gmx.de>
* Copyright (C) 2004-2018 Apple Inc. All rights reserved.
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
*
* 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.
*/
#pragma once
#include "AdjustViewSizeOrNot.h"
#include "Document.h"
#include "Frame.h"
#include "ScrollTypes.h"
#include "UserScriptTypes.h"
#include <wtf/HashSet.h>
#include <wtf/UniqueRef.h>
#if PLATFORM(IOS_FAMILY)
#include "Timer.h"
#include "ViewportArguments.h"
#include "VisibleSelection.h"
#endif
#if PLATFORM(WIN)
#include "FrameWin.h"
#endif
#if PLATFORM(COCOA)
OBJC_CLASS NSArray;
#endif
#if PLATFORM(WIN)
typedef struct HBITMAP__* HBITMAP;
#endif
typedef const struct OpaqueJSContext* JSContextRef;
typedef const struct OpaqueJSValue* JSValueRef;
namespace JSC { namespace Yarr {
class RegularExpression;
} }
namespace WTF {
class TextStream;
}
namespace WebCore {
class Color;
class LocalDOMWindow;
class DataDetectionResultsStorage;
class Document;
class Editor;
class Element;
class EventHandler;
class FloatSize;
class FrameDestructionObserver;
class FrameLoader;
class FrameSelection;
class HTMLFrameOwnerElement;
class HTMLTableCellElement;
class HitTestResult;
class ImageBuffer;
class IntPoint;
class IntRect;
class IntSize;
class LocalFrameLoaderClient;
class LocalFrameView;
class Node;
class Page;
class RenderLayer;
class RenderView;
class RenderWidget;
class ScriptController;
class SecurityOrigin;
class VisiblePosition;
class Widget;
struct SimpleRange;
#if PLATFORM(IOS_FAMILY)
enum {
OverflowScrollNone = 0,
OverflowScrollLeft = 1 << 0,
OverflowScrollRight = 1 << 1,
OverflowScrollUp = 1 << 2,
OverflowScrollDown = 1 << 3
};
enum OverflowScrollAction { DoNotPerformOverflowScroll, PerformOverflowScroll };
using NodeQualifier = Function<Node* (const HitTestResult&, Node* terminationNode, IntRect* nodeBounds)>;
#endif
class LocalFrame final : public Frame {
public:
WEBCORE_EXPORT static Ref<LocalFrame> createMainFrame(Page&, UniqueRef<LocalFrameLoaderClient>&&, FrameIdentifier);
WEBCORE_EXPORT static Ref<LocalFrame> createSubframe(Page&, UniqueRef<LocalFrameLoaderClient>&&, FrameIdentifier, HTMLFrameOwnerElement&);
WEBCORE_EXPORT static Ref<LocalFrame> createSubframeHostedInAnotherProcess(Page&, UniqueRef<LocalFrameLoaderClient>&&, FrameIdentifier, Frame& parent);
WEBCORE_EXPORT void init();
#if PLATFORM(IOS_FAMILY)
// Creates <html><body style="..."></body></html> doing minimal amount of work.
WEBCORE_EXPORT void initWithSimpleHTMLDocument(const AtomString& style, const URL&);
#endif
WEBCORE_EXPORT void setView(RefPtr<LocalFrameView>&&);
WEBCORE_EXPORT void createView(const IntSize&, const std::optional<Color>& backgroundColor,
const IntSize& fixedLayoutSize, const IntRect& fixedVisibleContentRect,
bool useFixedLayout = false, ScrollbarMode = ScrollbarMode::Auto, bool horizontalLock = false,
ScrollbarMode = ScrollbarMode::Auto, bool verticalLock = false);
WEBCORE_EXPORT ~LocalFrame();
WEBCORE_EXPORT LocalDOMWindow* window() const;
void addDestructionObserver(FrameDestructionObserver&);
void removeDestructionObserver(FrameDestructionObserver&);
WEBCORE_EXPORT void willDetachPage();
Document* document() const;
LocalFrameView* view() const;
Editor& editor() { return document()->editor(); }
const Editor& editor() const { return document()->editor(); }
EventHandler& eventHandler() { return m_eventHandler; }
const EventHandler& eventHandler() const { return m_eventHandler; }
const FrameLoader& loader() const { return m_loader.get(); }
FrameLoader& loader() { return m_loader.get(); }
FrameSelection& selection() { return document()->selection(); }
const FrameSelection& selection() const { return document()->selection(); }
ScriptController& script() { return m_script; }
const ScriptController& script() const { return m_script; }
void resetScript();
WEBCORE_EXPORT RenderView* contentRenderer() const; // Root of the render tree for the document contained in this frame.
WEBCORE_EXPORT RenderWidget* ownerRenderer() const; // Renderer for the element that contains this frame.
bool documentIsBeingReplaced() const { return m_documentIsBeingReplaced; }
bool hasHadUserInteraction() const { return m_hasHadUserInteraction; }
void setHasHadUserInteraction() { m_hasHadUserInteraction = true; }
bool requestDOMPasteAccess(DOMPasteAccessCategory = DOMPasteAccessCategory::General);
String debugDescription() const;
WEBCORE_EXPORT static LocalFrame* fromJSContext(JSContextRef);
WEBCORE_EXPORT static LocalFrame* contentFrameFromWindowOrFrameElement(JSContextRef, JSValueRef);
// ======== All public functions below this point are candidates to move out of Frame into another class. ========
WEBCORE_EXPORT void injectUserScripts(UserScriptInjectionTime);
WEBCORE_EXPORT void injectUserScriptImmediately(DOMWrapperWorld&, const UserScript&);
void injectUserScriptsAwaitingNotification();
void addUserScriptAwaitingNotification(DOMWrapperWorld&, const UserScript&);
WEBCORE_EXPORT String trackedRepaintRectsAsText() const;
WEBCORE_EXPORT static LocalFrame* frameForWidget(const Widget&);
WEBCORE_EXPORT void setPrinting(bool printing, const FloatSize& pageSize, const FloatSize& originalPageSize, float maximumShrinkRatio, AdjustViewSizeOrNot);
bool shouldUsePrintingLayout() const;
WEBCORE_EXPORT FloatSize resizePageRectsKeepingRatio(const FloatSize& originalSize, const FloatSize& expectedSize);
void setDocument(RefPtr<Document>&&);
WEBCORE_EXPORT void setPageZoomFactor(float);
float pageZoomFactor() const { return m_pageZoomFactor; }
WEBCORE_EXPORT void setTextZoomFactor(float);
float textZoomFactor() const { return m_textZoomFactor; }
WEBCORE_EXPORT void setPageAndTextZoomFactors(float pageZoomFactor, float textZoomFactor);
// Scale factor of this frame with respect to the container.
WEBCORE_EXPORT float frameScaleFactor() const;
void deviceOrPageScaleFactorChanged();
#if ENABLE(DATA_DETECTION)
DataDetectionResultsStorage* dataDetectionResultsIfExists() const { return m_dataDetectionResults.get(); }
WEBCORE_EXPORT DataDetectionResultsStorage& dataDetectionResults();
#endif
#if PLATFORM(IOS_FAMILY)
const ViewportArguments& viewportArguments() const;
WEBCORE_EXPORT void setViewportArguments(const ViewportArguments&);
WEBCORE_EXPORT Node* deepestNodeAtLocation(const FloatPoint& viewportLocation);
WEBCORE_EXPORT Node* nodeRespondingToClickEvents(const FloatPoint& viewportLocation, FloatPoint& adjustedViewportLocation, SecurityOrigin* = nullptr);
WEBCORE_EXPORT Node* nodeRespondingToDoubleClickEvent(const FloatPoint& viewportLocation, FloatPoint& adjustedViewportLocation);
WEBCORE_EXPORT Node* nodeRespondingToInteraction(const FloatPoint& viewportLocation, FloatPoint& adjustedViewportLocation);
WEBCORE_EXPORT Node* nodeRespondingToScrollWheelEvents(const FloatPoint& viewportLocation);
WEBCORE_EXPORT Node* approximateNodeAtViewportLocationLegacy(const FloatPoint& viewportLocation, FloatPoint& adjustedViewportLocation);
WEBCORE_EXPORT NSArray *wordsInCurrentParagraph() const;
WEBCORE_EXPORT CGRect renderRectForPoint(CGPoint, bool* isReplaced, float* fontSize) const;
WEBCORE_EXPORT void setSelectionChangeCallbacksDisabled(bool = true);
bool selectionChangeCallbacksDisabled() const;
enum ViewportOffsetChangeType { IncrementalScrollOffset, CompletedScrollOffset };
WEBCORE_EXPORT void viewportOffsetChanged(ViewportOffsetChangeType);
bool containsTiledBackingLayers() const;
WEBCORE_EXPORT void overflowScrollPositionChangedForNode(const IntPoint&, Node*, bool isUserScroll);
WEBCORE_EXPORT void resetAllGeolocationPermission();
#endif
#if ENABLE(ORIENTATION_EVENTS)
// Orientation is the interface orientation in degrees. Some examples are:
// 0 is straight up; -90 is when the device is rotated 90 clockwise;
// 90 is when rotated counter clockwise.
WEBCORE_EXPORT void orientationChanged();
IntDegrees orientation() const;
#endif
void clearTimers();
static void clearTimers(LocalFrameView*, Document*);
WEBCORE_EXPORT String displayStringModifiedByEncoding(const String&) const;
WEBCORE_EXPORT VisiblePosition visiblePositionForPoint(const IntPoint& framePoint) const;
Document* documentAtPoint(const IntPoint& windowPoint);
WEBCORE_EXPORT std::optional<SimpleRange> rangeForPoint(const IntPoint& framePoint);
WEBCORE_EXPORT String searchForLabelsAboveCell(const JSC::Yarr::RegularExpression&, HTMLTableCellElement*, size_t* resultDistanceFromStartOfCell);
WEBCORE_EXPORT String searchForLabelsBeforeElement(const Vector<String>& labels, Element*, size_t* resultDistance, bool* resultIsInCellAbove);
WEBCORE_EXPORT String matchLabelsAgainstElement(const Vector<String>& labels, Element*);
#if PLATFORM(IOS_FAMILY)
WEBCORE_EXPORT int preferredHeight() const;
WEBCORE_EXPORT void updateLayout() const;
WEBCORE_EXPORT NSRect caretRect();
WEBCORE_EXPORT NSRect rectForScrollToVisible();
// This function is used by Legacy WebKit.
WEBCORE_EXPORT void setTimersPaused(bool);
WEBCORE_EXPORT void dispatchPageHideEventBeforePause();
WEBCORE_EXPORT void dispatchPageShowEventBeforeResume();
WEBCORE_EXPORT void setRangedSelectionBaseToCurrentSelection();
WEBCORE_EXPORT void setRangedSelectionBaseToCurrentSelectionStart();
WEBCORE_EXPORT void setRangedSelectionBaseToCurrentSelectionEnd();
WEBCORE_EXPORT void clearRangedSelectionInitialExtent();
WEBCORE_EXPORT void setRangedSelectionInitialExtentToCurrentSelectionStart();
WEBCORE_EXPORT void setRangedSelectionInitialExtentToCurrentSelectionEnd();
WEBCORE_EXPORT VisibleSelection rangedSelectionBase() const;
WEBCORE_EXPORT VisibleSelection rangedSelectionInitialExtent() const;
WEBCORE_EXPORT void recursiveSetUpdateAppearanceEnabled(bool);
WEBCORE_EXPORT NSArray *interpretationsForCurrentRoot() const;
#endif
void suspendActiveDOMObjectsAndAnimations();
void resumeActiveDOMObjectsAndAnimations();
bool activeDOMObjectsAndAnimationsSuspended() const { return m_activeDOMObjectsAndAnimationsSuspendedCount > 0; }
enum class InvalidateContentEventRegionsReason { Layout, EventHandlerChange };
void invalidateContentEventRegionsIfNeeded(InvalidateContentEventRegionsReason);
WEBCORE_EXPORT FloatSize screenSize() const;
void setOverrideScreenSize(FloatSize&&);
void selfOnlyRef();
void selfOnlyDeref();
WEBCORE_EXPORT bool arePluginsEnabled();
private:
friend class NavigationDisabler;
LocalFrame(Page&, UniqueRef<LocalFrameLoaderClient>&&, FrameIdentifier, HTMLFrameOwnerElement*, Frame* parent);
void dropChildren();
void frameDetached() final;
bool preventsParentFromBeingComplete() const final;
void changeLocation(FrameLoadRequest&&) final;
void broadcastFrameRemovalToOtherProcesses() final;
FrameView* virtualView() const final;
DOMWindow* virtualWindow() const final;
HashSet<FrameDestructionObserver*> m_destructionObservers;
Vector<std::pair<Ref<DOMWrapperWorld>, UniqueRef<UserScript>>> m_userScriptsAwaitingNotification;
UniqueRef<FrameLoader> m_loader;
RefPtr<LocalFrameView> m_view;
RefPtr<Document> m_doc;
UniqueRef<ScriptController> m_script;
#if ENABLE(DATA_DETECTION)
std::unique_ptr<DataDetectionResultsStorage> m_dataDetectionResults;
#endif
#if PLATFORM(IOS_FAMILY)
void betterApproximateNode(const IntPoint& testPoint, const NodeQualifier&, Node*& best, Node* failedNode, IntPoint& bestPoint, IntRect& bestRect, const IntRect& testRect);
bool hitTestResultAtViewportLocation(const FloatPoint& viewportLocation, HitTestResult&, IntPoint& center);
enum class ShouldApproximate : bool { No, Yes };
enum class ShouldFindRootEditableElement : bool { No, Yes };
Node* qualifyingNodeAtViewportLocation(const FloatPoint& viewportLocation, FloatPoint& adjustedViewportLocation, const NodeQualifier&, ShouldApproximate, ShouldFindRootEditableElement = ShouldFindRootEditableElement::Yes);
void setTimersPausedInternal(bool);
ViewportArguments m_viewportArguments;
bool m_selectionChangeCallbacksDisabled { false };
VisibleSelection m_rangedSelectionBase;
VisibleSelection m_rangedSelectionInitialExtent;
#endif
float m_pageZoomFactor;
float m_textZoomFactor;
int m_activeDOMObjectsAndAnimationsSuspendedCount { 0 };
bool m_documentIsBeingReplaced { false };
unsigned m_navigationDisableCount { 0 };
unsigned m_selfOnlyRefCount { 0 };
bool m_hasHadUserInteraction { false };
FloatSize m_overrideScreenSize;
UniqueRef<EventHandler> m_eventHandler;
};
inline LocalFrameView* LocalFrame::view() const
{
return m_view.get();
}
inline Document* LocalFrame::document() const
{
return m_doc.get();
}
inline LocalFrameView* Document::view() const
{
return m_frame ? m_frame->view() : nullptr;
}
WTF::TextStream& operator<<(WTF::TextStream&, const LocalFrame&);
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::LocalFrame)
static bool isType(const WebCore::Frame& frame) { return frame.frameType() == WebCore::Frame::FrameType::Local; }
SPECIALIZE_TYPE_TRAITS_END()
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