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/*
* Copyright (C) 2009 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#ifndef WebPluginContainerImpl_h
#define WebPluginContainerImpl_h
#include "WebPluginContainer.h"
#include "core/plugins/PluginView.h"
#include "platform/Widget.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassRefPtr.h"
#include "wtf/text/WTFString.h"
#include "wtf/Vector.h"
struct NPObject;
namespace WebCore {
class GestureEvent;
class HTMLPlugInElement;
class IntRect;
class KeyboardEvent;
class MouseEvent;
class PlatformGestureEvent;
class ResourceError;
class ResourceResponse;
class TouchEvent;
class WheelEvent;
class Widget;
}
namespace blink {
struct WebPrintParams;
class ScrollbarGroup;
class WebPlugin;
class WebPluginLoadObserver;
class WebExternalTextureLayer;
class WebPluginContainerImpl : public WebCore::PluginView, public WebPluginContainer {
public:
static PassRefPtr<WebPluginContainerImpl> create(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin)
{
return adoptRef(new WebPluginContainerImpl(element, webPlugin));
}
// PluginView methods
virtual WebLayer* platformLayer() const OVERRIDE;
virtual NPObject* scriptableObject() OVERRIDE;
virtual bool getFormValue(String&) OVERRIDE;
virtual bool supportsKeyboardFocus() const OVERRIDE;
virtual bool supportsInputMethod() const OVERRIDE;
virtual bool canProcessDrag() const OVERRIDE;
virtual bool wantsWheelEvents() OVERRIDE;
// Widget methods
virtual void setFrameRect(const WebCore::IntRect&);
virtual void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
virtual void invalidateRect(const WebCore::IntRect&);
virtual void setFocus(bool);
virtual void show();
virtual void hide();
virtual void handleEvent(WebCore::Event*);
virtual void frameRectsChanged();
virtual void setParentVisible(bool);
virtual void setParent(WebCore::Widget*);
virtual void widgetPositionsUpdated();
virtual void clipRectChanged() OVERRIDE;
virtual bool isPluginContainer() const { return true; }
virtual void eventListenersRemoved() OVERRIDE;
// WebPluginContainer methods
virtual WebElement element();
virtual void invalidate();
virtual void invalidateRect(const WebRect&);
virtual void scrollRect(int dx, int dy, const WebRect&);
virtual void reportGeometry();
virtual void allowScriptObjects();
virtual void clearScriptObjects();
virtual NPObject* scriptableObjectForElement();
virtual WebString executeScriptURL(const WebURL&, bool popupsAllowed);
virtual void loadFrameRequest(const WebURLRequest&, const WebString& target, bool notifyNeeded, void* notifyData);
virtual void zoomLevelChanged(double zoomLevel);
virtual bool isRectTopmost(const WebRect&);
virtual void requestTouchEventType(TouchEventRequestType);
virtual void setWantsWheelEvents(bool);
virtual WebPoint windowToLocalPoint(const WebPoint&);
virtual WebPoint localToWindowPoint(const WebPoint&);
// This cannot be null.
WebPlugin* plugin() { return m_webPlugin; }
void setPlugin(WebPlugin*);
virtual float deviceScaleFactor();
virtual float pageScaleFactor();
virtual float pageZoomFactor();
virtual void setWebLayer(WebLayer*);
// Printing interface. The plugin can support custom printing
// (which means it controls the layout, number of pages etc).
// Whether the plugin supports its own paginated print. The other print
// interface methods are called only if this method returns true.
bool supportsPaginatedPrint() const;
// If the plugin content should not be scaled to the printable area of
// the page, then this method should return true.
bool isPrintScalingDisabled() const;
// Sets up printing at the specified WebPrintParams. Returns the number of pages to be printed at these settings.
int printBegin(const WebPrintParams&) const;
// Prints the page specified by pageNumber (0-based index) into the supplied canvas.
bool printPage(int pageNumber, WebCore::GraphicsContext* gc);
// Ends the print operation.
void printEnd();
// Copy the selected text.
void copy();
// Pass the edit command to the plugin.
bool executeEditCommand(const WebString& name);
bool executeEditCommand(const WebString& name, const WebString& value);
// Resource load events for the plugin's source data:
virtual void didReceiveResponse(const WebCore::ResourceResponse&) OVERRIDE;
virtual void didReceiveData(const char *data, int dataLength) OVERRIDE;
virtual void didFinishLoading() OVERRIDE;
virtual void didFailLoading(const WebCore::ResourceError&) OVERRIDE;
void willDestroyPluginLoadObserver(WebPluginLoadObserver*);
ScrollbarGroup* scrollbarGroup();
void willStartLiveResize();
void willEndLiveResize();
bool paintCustomOverhangArea(WebCore::GraphicsContext*, const WebCore::IntRect&, const WebCore::IntRect&, const WebCore::IntRect&);
private:
WebPluginContainerImpl(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin);
~WebPluginContainerImpl();
void handleMouseEvent(WebCore::MouseEvent*);
void handleDragEvent(WebCore::MouseEvent*);
void handleWheelEvent(WebCore::WheelEvent*);
void handleKeyboardEvent(WebCore::KeyboardEvent*);
void handleTouchEvent(WebCore::TouchEvent*);
void handleGestureEvent(WebCore::GestureEvent*);
void synthesizeMouseEventIfPossible(WebCore::TouchEvent*);
void focusPlugin();
void calculateGeometry(const WebCore::IntRect& frameRect,
WebCore::IntRect& windowRect,
WebCore::IntRect& clipRect,
Vector<WebCore::IntRect>& cutOutRects);
WebCore::IntRect windowClipRect() const;
void windowCutOutRects(const WebCore::IntRect& frameRect,
Vector<WebCore::IntRect>& cutOutRects);
WebCore::HTMLPlugInElement* m_element;
WebPlugin* m_webPlugin;
Vector<WebPluginLoadObserver*> m_pluginLoadObservers;
WebLayer* m_webLayer;
// The associated scrollbar group object, created lazily. Used for Pepper
// scrollbars.
OwnPtr<ScrollbarGroup> m_scrollbarGroup;
TouchEventRequestType m_touchEventRequestType;
bool m_wantsWheelEvents;
};
inline WebPluginContainerImpl* toPluginContainerImpl(WebCore::Widget* widget)
{
ASSERT_WITH_SECURITY_IMPLICATION(!widget || widget->isPluginContainer());
// We need to ensure that the object is actually of type PluginContainer
// as there are many subclasses of Widget.
return static_cast<WebPluginContainerImpl*>(widget);
}
inline WebPluginContainerImpl* toPluginContainerImpl(WebPluginContainer* container)
{
// Unlike Widget, we need not worry about object type for container.
// WebPluginContainerImpl is the only subclass of WebPluginContainer.
return static_cast<WebPluginContainerImpl*>(container);
}
// This will catch anyone doing an unnecessary cast.
void toPluginContainerImpl(const WebPluginContainerImpl*);
} // namespace blink
#endif
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