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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebPluginContainerImpl_h
     32 #define WebPluginContainerImpl_h
     33 
     34 #include "PluginViewBase.h"
     35 #include "WebPluginContainer.h"
     36 #include "Widget.h"
     37 
     38 #include <wtf/PassRefPtr.h>
     39 #include <wtf/Vector.h>
     40 
     41 struct NPObject;
     42 
     43 namespace WebCore {
     44 class HTMLPlugInElement;
     45 class IntRect;
     46 class KeyboardEvent;
     47 class LayerChromium;
     48 class MouseEvent;
     49 class PluginLayerChromium;
     50 class ResourceError;
     51 class ResourceResponse;
     52 class WheelEvent;
     53 }
     54 
     55 namespace WebKit {
     56 
     57 class WebPlugin;
     58 class WebPluginLoadObserver;
     59 
     60 class WebPluginContainerImpl : public WebCore::PluginViewBase, public WebPluginContainer {
     61 public:
     62     static PassRefPtr<WebPluginContainerImpl> create(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin)
     63     {
     64         return adoptRef(new WebPluginContainerImpl(element, webPlugin));
     65     }
     66 
     67     // Widget methods
     68     virtual void setFrameRect(const WebCore::IntRect&);
     69     virtual void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
     70     virtual void invalidateRect(const WebCore::IntRect&);
     71     virtual void setFocus(bool);
     72     virtual void show();
     73     virtual void hide();
     74     virtual void handleEvent(WebCore::Event*);
     75     virtual void frameRectsChanged();
     76     virtual void setParentVisible(bool);
     77     virtual void setParent(WebCore::ScrollView*);
     78     virtual void widgetPositionsUpdated();
     79     virtual bool isPluginContainer() const { return true; }
     80 
     81     // WebPluginContainer methods
     82     virtual WebElement element();
     83     virtual void invalidate();
     84     virtual void invalidateRect(const WebRect&);
     85     virtual void scrollRect(int dx, int dy, const WebRect&);
     86     virtual void reportGeometry();
     87     virtual void setBackingTextureId(unsigned);
     88     virtual void commitBackingTexture();
     89     virtual void clearScriptObjects();
     90     virtual NPObject* scriptableObjectForElement();
     91     virtual WebString executeScriptURL(const WebURL&, bool popupsAllowed);
     92     virtual void loadFrameRequest(const WebURLRequest&, const WebString& target, bool notifyNeeded, void* notifyData);
     93     virtual void zoomLevelChanged(double zoomLevel);
     94 
     95     // This cannot be null.
     96     WebPlugin* plugin() { return m_webPlugin; }
     97     void setPlugin(WebPlugin* plugin) { m_webPlugin = plugin; }
     98 
     99     // Printing interface. The plugin can support custom printing
    100     // (which means it controls the layout, number of pages etc).
    101     // Whether the plugin supports its own paginated print. The other print
    102     // interface methods are called only if this method returns true.
    103     bool supportsPaginatedPrint() const;
    104     // Sets up printing at the given print rect and printer DPI. printableArea
    105     // is in points (a point is 1/72 of an inch).Returns the number of pages to
    106     // be printed at these settings.
    107     int printBegin(const WebCore::IntRect& printableArea, int printerDPI) const;
    108     // Prints the page specified by pageNumber (0-based index) into the supplied canvas.
    109     bool printPage(int pageNumber, WebCore::GraphicsContext* gc);
    110     // Ends the print operation.
    111     void printEnd();
    112 
    113     // Copy the selected text.
    114     void copy();
    115 
    116     // Resource load events for the plugin's source data:
    117     void didReceiveResponse(const WebCore::ResourceResponse&);
    118     void didReceiveData(const char *data, int dataLength);
    119     void didFinishLoading();
    120     void didFailLoading(const WebCore::ResourceError&);
    121 
    122     NPObject* scriptableObject();
    123 
    124     void willDestroyPluginLoadObserver(WebPluginLoadObserver*);
    125 
    126 #if USE(ACCELERATED_COMPOSITING)
    127     virtual WebCore::LayerChromium* platformLayer() const;
    128 #endif
    129 
    130 private:
    131     WebPluginContainerImpl(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin);
    132     ~WebPluginContainerImpl();
    133 
    134     void handleMouseEvent(WebCore::MouseEvent*);
    135     void handleWheelEvent(WebCore::WheelEvent*);
    136     void handleKeyboardEvent(WebCore::KeyboardEvent*);
    137 
    138     void calculateGeometry(const WebCore::IntRect& frameRect,
    139                            WebCore::IntRect& windowRect,
    140                            WebCore::IntRect& clipRect,
    141                            Vector<WebCore::IntRect>& cutOutRects);
    142     WebCore::IntRect windowClipRect() const;
    143     void windowCutOutRects(const WebCore::IntRect& frameRect,
    144                            Vector<WebCore::IntRect>& cutOutRects);
    145 
    146     WebCore::HTMLPlugInElement* m_element;
    147     WebPlugin* m_webPlugin;
    148     Vector<WebPluginLoadObserver*> m_pluginLoadObservers;
    149 
    150 #if USE(ACCELERATED_COMPOSITING)
    151     RefPtr<WebCore::PluginLayerChromium> m_platformLayer;
    152 #endif
    153 };
    154 
    155 } // namespace WebKit
    156 
    157 #endif
    158