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/*
* Copyright (C) 2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(FULLSCREEN_API)
#include "Document.h"
#include "FrameDestructionObserverInlines.h"
#include "GCReachableRef.h"
#include "LayoutRect.h"
#include <wtf/Deque.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class RenderFullScreen;
class RenderTreeBuilder;
class RenderStyle;
class FullscreenManager final : public CanMakeWeakPtr<FullscreenManager> {
WTF_MAKE_FAST_ALLOCATED;
public:
FullscreenManager(Document&);
~FullscreenManager();
Document& document() { return m_document; }
const Document& document() const { return m_document; }
Document& topDocument() const { return m_document.topDocument(); }
Page* page() const { return m_document.page(); }
Frame* frame() const { return m_document.frame(); }
Element* documentElement() const { return m_document.documentElement(); }
bool hasLivingRenderTree() const { return m_document.hasLivingRenderTree(); }
Document::BackForwardCacheState backForwardCacheState() const { return m_document.backForwardCacheState(); }
void scheduleFullStyleRebuild() { m_document.scheduleFullStyleRebuild(); }
// W3C Fullscreen API
Element* fullscreenElement() const { return !m_fullscreenElementStack.isEmpty() ? m_fullscreenElementStack.last().get() : nullptr; }
WEBCORE_EXPORT bool isFullscreenEnabled() const;
WEBCORE_EXPORT void exitFullscreen();
// Mozilla versions.
bool isFullscreen() const { return m_fullscreenElement.get(); }
bool isFullscreenKeyboardInputAllowed() const { return m_fullscreenElement.get() && m_areKeysEnabledInFullscreen; }
Element* currentFullscreenElement() const { return m_fullscreenElement.get(); }
WEBCORE_EXPORT void cancelFullscreen();
enum FullscreenCheckType {
EnforceIFrameAllowFullscreenRequirement,
ExemptIFrameAllowFullscreenRequirement,
};
WEBCORE_EXPORT void requestFullscreenForElement(Ref<Element>&&, FullscreenCheckType);
WEBCORE_EXPORT bool willEnterFullscreen(Element&);
WEBCORE_EXPORT bool didEnterFullscreen();
WEBCORE_EXPORT bool willExitFullscreen();
WEBCORE_EXPORT bool didExitFullscreen();
void setFullscreenRenderer(RenderTreeBuilder&, RenderFullScreen&);
RenderFullScreen* fullscreenRenderer() const;
void dispatchFullscreenChangeEvents();
void fullscreenElementRemoved();
void adjustFullscreenElementOnNodeRemoval(Node&, Document::NodeRemoval = Document::NodeRemoval::Node);
WEBCORE_EXPORT bool isAnimatingFullscreen() const;
WEBCORE_EXPORT void setAnimatingFullscreen(bool);
WEBCORE_EXPORT bool areFullscreenControlsHidden() const;
WEBCORE_EXPORT void setFullscreenControlsHidden(bool);
void clear();
void emptyEventQueue();
protected:
friend class Document;
void dispatchFullscreenChangeOrErrorEvent(Deque<GCReachableRef<Node>>&, const AtomString& eventName, bool shouldNotifyMediaElement);
void clearFullscreenElementStack();
void popFullscreenElementStack();
void pushFullscreenElementStack(Element&);
void addDocumentToFullscreenChangeEventQueue(Document&);
private:
#if !RELEASE_LOG_DISABLED
const Logger& logger() const { return m_document.logger(); }
const void* logIdentifier() const { return m_logIdentifier; }
const char* logClassName() const { return "FullscreenManager"; }
WTFLogChannel& logChannel() const;
#endif
Document& m_document;
RefPtr<Element> fullscreenOrPendingElement() const { return m_fullscreenElement ? m_fullscreenElement : m_pendingFullscreenElement; }
bool m_pendingExitFullscreen { false };
RefPtr<Element> m_pendingFullscreenElement;
RefPtr<Element> m_fullscreenElement;
Vector<RefPtr<Element>> m_fullscreenElementStack;
WeakPtr<RenderFullScreen> m_fullscreenRenderer { nullptr };
Deque<GCReachableRef<Node>> m_fullscreenChangeEventTargetQueue;
Deque<GCReachableRef<Node>> m_fullscreenErrorEventTargetQueue;
LayoutRect m_savedPlaceholderFrameRect;
std::unique_ptr<RenderStyle> m_savedPlaceholderRenderStyle;
bool m_areKeysEnabledInFullscreen { false };
bool m_isAnimatingFullscreen { false };
bool m_areFullscreenControlsHidden { false };
#if !RELEASE_LOG_DISABLED
const void* m_logIdentifier;
#endif
};
}
#endif
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