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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:
create(WebCore::HTMLPlugInElement * element,WebPlugin * webPlugin)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();
isPluginContainer()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.
plugin()96     WebPlugin* plugin() { return m_webPlugin; }
setPlugin(WebPlugin * plugin)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