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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

// FIXME: This relative path is a temporary hack to support using this
// header from webkit/glue.
#include "../public/WebPluginContainer.h"

#include "Widget.h"
#include <wtf/PassRefPtr.h>
#include <wtf/Vector.h>

struct NPObject;

namespace WebCore {
    class HTMLPlugInElement;
    class IntRect;
    class KeyboardEvent;
    class MouseEvent;
    class ResourceError;
    class ResourceResponse;
}

namespace WebKit {
    class WebPlugin;
    class WebPluginLoadObserver;

    class WebPluginContainerImpl : public WebCore::Widget, public WebPluginContainer {
    public:
        static PassRefPtr<WebPluginContainerImpl> create(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin)
        {
            return adoptRef(new WebPluginContainerImpl(element, webPlugin));
        }

        // 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();
        virtual void show();
        virtual void hide();
        virtual void handleEvent(WebCore::Event*);
        virtual void frameRectsChanged();
        virtual void setParentVisible(bool);
        virtual void setParent(WebCore::ScrollView*);

        // WebPluginContainer methods
        virtual void invalidate();
        virtual void invalidateRect(const WebRect&);
        virtual NPObject* scriptableObjectForElement();
        virtual WebString executeScriptURL(const WebURL&, bool popupsAllowed);
        virtual void loadFrameRequest(const WebURLRequest&, const WebString& target, bool notifyNeeded, void* notifyData);

        // Resource load events for the plugin's source data:
        void didReceiveResponse(const WebCore::ResourceResponse&);
        void didReceiveData(const char *data, int dataLength);
        void didFinishLoading();
        void didFailLoading(const WebCore::ResourceError&);

        NPObject* scriptableObject();

        // This cannot be null.
        WebPlugin* plugin() { return m_webPlugin; }

        void willDestroyPluginLoadObserver(WebPluginLoadObserver*);

    private:
        WebPluginContainerImpl(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin)
            : m_element(element)
            , m_webPlugin(webPlugin) { }
        ~WebPluginContainerImpl();

        void handleMouseEvent(WebCore::MouseEvent*);
        void handleKeyboardEvent(WebCore::KeyboardEvent*);

        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;
    };

} // namespace WebKit

#endif