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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 <WebCore/Document.h>
#include <WebCore/FullscreenOptions.h>
#include <WebCore/GCReachableRef.h>
#include <WebCore/HTMLMediaElement.h>
#include <WebCore/HTMLMediaElementEnums.h>
#include <WebCore/LayoutRect.h>
#include <WebCore/Page.h>
#include <wtf/Deque.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class RenderStyle;
class DocumentFullscreen final : public CanMakeWeakPtr<DocumentFullscreen> {
WTF_MAKE_TZONE_ALLOCATED(DocumentFullscreen);
public:
DocumentFullscreen(Document&);
void ref() const { m_document->ref(); }
void deref() const { m_document->deref(); }
// Document+Fullscreen.idl methods.
static void exitFullscreen(Document&, RefPtr<DeferredPromise>&&);
static bool fullscreenEnabled(Document&);
static bool webkitFullscreenEnabled(Document& document) { return document.protectedFullscreen()->enabledByPermissionsPolicy(); }
static Element* webkitFullscreenElement(Document& document) { return document.ancestorElementInThisScope(document.protectedFullscreen()->protectedFullscreenElement().get()); };
WEBCORE_EXPORT static void webkitExitFullscreen(Document&);
static bool webkitIsFullScreen(Document& document) { return document.protectedFullscreen()->isFullscreen(); };
static bool webkitFullScreenKeyboardInputAllowed(Document& document) { return document.protectedFullscreen()->isFullscreenKeyboardInputAllowed(); };
static void webkitCancelFullScreen(Document& document) { document.protectedFullscreen()->fullyExitFullscreen(); };
// Helpers.
Document& document() { return m_document.get(); }
const Document& document() const { return m_document.get(); }
Ref<Document> protectedDocument() const { return m_document.get(); }
LocalFrame* frame() const;
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 enabledByPermissionsPolicy() 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; }
// Fullscreen Keyboard Lock
void setKeyboardLockMode(FullscreenOptions::KeyboardLock mode) { m_keyboardLockMode = mode; }
bool isBrowserKeyboardLockEnabled() const { return m_keyboardLockMode == FullscreenOptions::KeyboardLock::Browser; }
enum FullscreenCheckType {
EnforceIFrameAllowFullscreenRequirement,
ExemptIFrameAllowFullscreenRequirement,
};
WEBCORE_EXPORT void requestFullscreen(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);
void clear();
protected:
friend class Document;
void clearPendingEvents() { m_pendingEvents.clear(); }
private:
#if !RELEASE_LOG_DISABLED
const Logger& logger() const { return protectedDocument()->logger(); }
uint64_t logIdentifier() const { return m_logIdentifier; }
ASCIILiteral logClassName() const { return "DocumentFullscreen"_s; }
WTFLogChannel& logChannel() const;
#endif
Page* page() const;
Document* mainFrameDocument() { return protectedDocument()->mainFrameDocument(); }
RefPtr<Element> fullscreenOrPendingElement() const { return m_fullscreenElement ? m_fullscreenElement : m_pendingFullscreenElement; }
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;
RefPtr<Element> m_fullscreenElement;
RefPtr<Element> m_pendingFullscreenElement;
Deque<std::pair<EventType, GCReachableRef<Element>>> m_pendingEvents;
bool m_areKeysEnabledInFullscreen { false };
bool m_isAnimatingFullscreen { false };
bool m_pendingExitFullscreen { false };
// Fullscreen Keyboard Lock
FullscreenOptions::KeyboardLock m_keyboardLockMode { FullscreenOptions::KeyboardLock::None };
#if !RELEASE_LOG_DISABLED
const uint64_t m_logIdentifier;
#endif
class CompletionHandlerScope;
};
}
#endif
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