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/*
* Copyright (C) 2010-2018 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
#include "LayerTreeContext.h"
#include "Plugin.h"
#include "PluginController.h"
#include "WebFrame.h"
#include <WebCore/ActivityState.h>
#include <WebCore/FindOptions.h>
#include <WebCore/Image.h>
#include <WebCore/MediaCanStartListener.h>
#include <WebCore/MediaProducer.h>
#include <WebCore/PluginViewBase.h>
#include <WebCore/ResourceError.h>
#include <WebCore/ResourceResponse.h>
#include <WebCore/SharedBuffer.h>
#include <WebCore/Timer.h>
#include <memory>
#include <wtf/Deque.h>
#include <wtf/RunLoop.h>
// FIXME: Eventually this should move to WebCore.
#if PLATFORM(COCOA)
OBJC_CLASS NSDictionary;
OBJC_CLASS PDFSelection;
#endif
namespace WTF {
class MachSendRight;
}
namespace WebCore {
class Frame;
class HTMLPlugInElement;
class MouseEvent;
}
namespace WebKit {
class WebEvent;
class PluginView : public WebCore::PluginViewBase, public PluginController, private WebCore::MediaCanStartListener, private WebFrame::LoadListener, private WebCore::MediaProducer {
public:
static Ref<PluginView> create(WebCore::HTMLPlugInElement&, Ref<Plugin>&&, const Plugin::Parameters&);
WebCore::Frame* frame() const;
bool isBeingDestroyed() const { return !m_plugin || m_plugin->isBeingDestroyed(); }
void manualLoadDidReceiveResponse(const WebCore::ResourceResponse&);
void manualLoadDidReceiveData(const WebCore::SharedBuffer&);
void manualLoadDidFinishLoading();
void manualLoadDidFail(const WebCore::ResourceError&);
void activityStateDidChange(OptionSet<WebCore::ActivityState::Flag> changed);
void setLayerHostingMode(LayerHostingMode);
#if PLATFORM(COCOA)
void setDeviceScaleFactor(float);
void windowAndViewFramesChanged(const WebCore::FloatRect& windowFrameInScreenCoordinates, const WebCore::FloatRect& viewFrameInWindowCoordinates);
RetainPtr<PDFDocument> pdfDocumentForPrinting() const { return m_plugin->pdfDocumentForPrinting(); }
id accessibilityHitTest(const WebCore::IntPoint& point) const override { return m_plugin->accessibilityHitTest(point); }
id accessibilityObject() const override;
id accessibilityAssociatedPluginParentForElement(WebCore::Element*) const override;
#endif
WebCore::HTMLPlugInElement* pluginElement() const { return m_pluginElement.get(); }
const Plugin::Parameters& initialParameters() const { return m_parameters; }
Plugin* plugin() const { return m_plugin.get(); }
void setPageScaleFactor(double scaleFactor, WebCore::IntPoint origin);
double pageScaleFactor() const;
bool handlesPageScaleFactor() const;
bool requiresUnifiedScaleFactor() const;
void pageScaleFactorDidChange();
void topContentInsetDidChange();
void webPageDestroyed();
bool handleEditingCommand(const String& commandName, const String& argument);
bool isEditingCommandEnabled(const String& commandName);
unsigned countFindMatches(const String& target, WebCore::FindOptions, unsigned maxMatchCount);
bool findString(const String& target, WebCore::FindOptions, unsigned maxMatchCount);
String getSelectionString() const;
bool shouldAllowScripting();
RefPtr<WebCore::FragmentedSharedBuffer> liveResourceData() const;
bool performDictionaryLookupAtLocation(const WebCore::FloatPoint&);
bool existingSelectionContainsPoint(const WebCore::FloatPoint&) const;
private:
PluginView(WebCore::HTMLPlugInElement&, Ref<Plugin>&&, const Plugin::Parameters&);
virtual ~PluginView();
void initializePlugin();
void viewGeometryDidChange();
void viewVisibilityDidChange();
WebCore::IntRect clipRectInWindowCoordinates() const;
void focusPluginElement();
void pendingURLRequestsTimerFired();
class URLRequest;
void performURLRequest(URLRequest*);
// Perform a URL request where the frame target is not null.
void performFrameLoadURLRequest(URLRequest*);
// Perform a URL request where the URL protocol is "javascript:".
void performJavaScriptURLRequest(URLRequest*);
class Stream;
void addStream(Stream*);
void removeStream(Stream*);
void cancelAllStreams();
void redeliverManualStream();
bool shouldCreateTransientPaintingSnapshot() const;
// WebCore::PluginViewBase
#if PLATFORM(COCOA)
PlatformLayer* platformLayer() const override;
#endif
JSC::JSObject* scriptObject(JSC::JSGlobalObject*) override;
void storageBlockingStateChanged() override;
bool scroll(WebCore::ScrollDirection, WebCore::ScrollGranularity) override;
WebCore::Scrollbar* horizontalScrollbar() override;
WebCore::Scrollbar* verticalScrollbar() override;
bool wantsWheelEvents() override;
bool shouldAllowNavigationFromDrags() const override;
void willDetachRenderer() override;
// WebCore::Widget
void setFrameRect(const WebCore::IntRect&) override;
void paint(WebCore::GraphicsContext&, const WebCore::IntRect&, WebCore::Widget::SecurityOriginPaintPolicy, WebCore::EventRegionContext*) override;
void invalidateRect(const WebCore::IntRect&) override;
void setFocus(bool) override;
void frameRectsChanged() override;
void setParent(WebCore::ScrollView*) override;
void handleEvent(WebCore::Event&) override;
void notifyWidget(WebCore::WidgetNotification) override;
void show() override;
void hide() override;
void setParentVisible(bool) override;
bool transformsAffectFrameRect() override;
void clipRectChanged() override;
// WebCore::MediaCanStartListener
void mediaCanStart(WebCore::Document&) override;
// WebCore::MediaProducer
WebCore::MediaProducerMediaStateFlags mediaState() const override;
void pageMutedStateDidChange() override;
// PluginController
void loadURL(uint64_t requestID, const String& method, const String& urlString, const String& target, const WebCore::HTTPHeaderMap& headerFields, const Vector<uint8_t>& httpBody, bool allowPopups) override;
float contentsScaleFactor() override;
void didInitializePlugin() override;
void destroyPluginAndReset();
// WebFrame::LoadListener
void didFinishLoad(WebFrame*) override;
void didFailLoad(WebFrame*, bool wasCancelled) override;
std::unique_ptr<WebEvent> createWebEvent(WebCore::MouseEvent&) const;
RefPtr<WebCore::HTMLPlugInElement> m_pluginElement;
RefPtr<Plugin> m_plugin;
WeakPtr<WebPage> m_webPage;
Plugin::Parameters m_parameters;
bool m_isInitialized { false };
bool m_isWaitingForSynchronousInitialization { false };
bool m_isWaitingUntilMediaCanStart { false };
// Pending URLRequests that the plug-in has made.
Deque<RefPtr<URLRequest>> m_pendingURLRequests;
RunLoop::Timer<PluginView> m_pendingURLRequestsTimer;
// Pending frame loads that the plug-in has made.
typedef HashMap<RefPtr<WebFrame>, RefPtr<URLRequest>> FrameLoadMap;
FrameLoadMap m_pendingFrameLoads;
// Streams that the plug-in has requested to load.
HashMap<uint64_t, RefPtr<Stream>> m_streams;
// The manual stream state. This is used so we can deliver a manual stream to a plug-in
// when it is initialized.
enum class ManualStreamState { Initial, HasReceivedResponse, Finished, Failed };
ManualStreamState m_manualStreamState { ManualStreamState::Initial };
WebCore::ResourceResponse m_manualStreamResponse;
WebCore::ResourceError m_manualStreamError;
WebCore::SharedBufferBuilder m_manualStreamData;
// This snapshot is used to avoid side effects should the plugin run JS during painting.
RefPtr<ShareableBitmap> m_transientPaintingSnapshot;
double m_pageScaleFactor { 1 };
bool m_pluginIsPlayingAudio { false };
};
inline WebCore::MediaProducerMediaStateFlags PluginView::mediaState() const
{
WebCore::MediaProducerMediaStateFlags mediaState;
if (m_pluginIsPlayingAudio)
mediaState.add(WebCore::MediaProducerMediaState::IsPlayingAudio);
return mediaState;
}
} // namespace WebKit
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