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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 "HTMLMediaElement.h"
#include "HTMLMediaElementEnums.h"
#include "LayoutRect.h"
#include "Page.h"
#include <wtf/Deque.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class RenderStyle;
class FullscreenManager final : public CanMakeWeakPtr<FullscreenManager>, public CanMakeCheckedPtr<FullscreenManager> {
WTF_MAKE_TZONE_ALLOCATED(FullscreenManager);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(FullscreenManager);
public:
FullscreenManager(Document&);
~FullscreenManager() = default;
Document& document() { return m_document.get(); }
const Document& document() const { return m_document.get(); }
Ref<Document> protectedDocument() const { return m_document.get(); }
Page* page() const { return document().page(); }
LocalFrame* frame() const { return document().frame(); }
Element* documentElement() const { return document().documentElement(); }
bool isSimpleFullscreenDocument() const;
Document::BackForwardCacheState backForwardCacheState() const { return document().backForwardCacheState(); }
// WHATWG Fullscreen API
WEBCORE_EXPORT Element* fullscreenElement() const;
RefPtr<Element> protectedFullscreenElement() const { return fullscreenElement(); }
WEBCORE_EXPORT bool isFullscreenEnabled() const;
WEBCORE_EXPORT void exitFullscreen(CompletionHandler<void(ExceptionOr<void>)>&&);
WEBCORE_EXPORT void fullyExitFullscreen();
// Legacy Mozilla API.
bool isFullscreen() const { return fullscreenElement(); }
bool isFullscreenKeyboardInputAllowed() const { return fullscreenElement() && m_areKeysEnabledInFullscreen; }
enum FullscreenCheckType {
EnforceIFrameAllowFullscreenRequirement,
ExemptIFrameAllowFullscreenRequirement,
};
WEBCORE_EXPORT void requestFullscreenForElement(Ref<Element>&&, FullscreenCheckType, CompletionHandler<void(ExceptionOr<void>)>&&, HTMLMediaElementEnums::VideoFullscreenMode = HTMLMediaElementEnums::VideoFullscreenModeStandard);
WEBCORE_EXPORT ExceptionOr<void> willEnterFullscreen(Element&, HTMLMediaElementEnums::VideoFullscreenMode);
WEBCORE_EXPORT bool willExitFullscreen();
WEBCORE_EXPORT void didExitFullscreen(CompletionHandler<void(ExceptionOr<void>)>&&);
WEBCORE_EXPORT static void elementEnterFullscreen(Element&);
void dispatchPendingEvents();
enum class ExitMode : bool { Resize, NoResize };
WEBCORE_EXPORT static void finishExitFullscreen(Frame&, ExitMode);
void exitRemovedFullscreenElement(Element&);
WEBCORE_EXPORT bool isAnimatingFullscreen() const;
WEBCORE_EXPORT void setAnimatingFullscreen(bool);
protected:
friend class Document;
void clearPendingEvents() { m_pendingEvents.clear(); }
private:
#if !RELEASE_LOG_DISABLED
const Logger& logger() const { return document().logger(); }
uint64_t logIdentifier() const { return m_logIdentifier; }
ASCIILiteral logClassName() const { return "FullscreenManager"_s; }
WTFLogChannel& logChannel() const;
#endif
Document* mainFrameDocument() { return document().mainFrameDocument(); }
RefPtr<Document> protectedMainFrameDocument() { return mainFrameDocument(); }
bool didEnterFullscreen();
enum class EventType : bool { Change, Error };
static void queueFullscreenChangeEventForDocument(Document&);
void queueFullscreenChangeEventForElement(Element& target) { m_pendingEvents.append({ EventType::Change, GCReachableRef(target) }); }
WeakRef<Document, WeakPtrImplWithEventTargetData> m_document;
Deque<std::pair<EventType, GCReachableRef<Element>>> m_pendingEvents;
bool m_areKeysEnabledInFullscreen { false };
bool m_isAnimatingFullscreen { false };
bool m_pendingExitFullscreen { false };
#if !RELEASE_LOG_DISABLED
const uint64_t m_logIdentifier;
#endif
class CompletionHandlerScope final {
public:
CompletionHandlerScope(CompletionHandler<void(ExceptionOr<void>)>&& completionHandler)
: m_completionHandler(WTFMove(completionHandler)) { }
CompletionHandlerScope(CompletionHandlerScope&&) = default;
CompletionHandlerScope& operator=(CompletionHandlerScope&&) = default;
~CompletionHandlerScope()
{
if (m_completionHandler)
m_completionHandler({ });
}
CompletionHandler<void(ExceptionOr<void>)> release() { return WTFMove(m_completionHandler); }
private:
CompletionHandler<void(ExceptionOr<void>)> m_completionHandler;
};
};
}
#endif
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