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 "WebPluginContainer.h"

    35 

    36 #include "Widget.h"

    37 #include <wtf/PassRefPtr.h>

    38 #include <wtf/Vector.h>

    39 

    40 struct NPObject;

    41 

    42 namespace WebCore {

    43 class HTMLPlugInElement;

    44 class IntRect;

    45 class KeyboardEvent;

    46 class MouseEvent;

    47 class ResourceError;

    48 class ResourceResponse;

    49 class WheelEvent;

    50 }

    51 

    52 namespace WebKit {

    53 

    54 class WebPlugin;

    55 class WebPluginLoadObserver;

    56 

    57 class WebPluginContainerImpl : public WebCore::Widget, public WebPluginContainer {

    58 public:

    59     static PassRefPtr<WebPluginContainerImpl> create(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin)

    60     {

    61         return adoptRef(new WebPluginContainerImpl(element, webPlugin));

    62     }

    63 

    64     // Widget methods

    65     virtual void setFrameRect(const WebCore::IntRect&);

    66     virtual void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);

    67     virtual void invalidateRect(const WebCore::IntRect&);

    68     virtual void setFocus(bool);

    69     virtual void show();

    70     virtual void hide();

    71     virtual void handleEvent(WebCore::Event*);

    72     virtual void frameRectsChanged();

    73     virtual void setParentVisible(bool);

    74     virtual void setParent(WebCore::ScrollView*);

    75     virtual void widgetPositionsUpdated();

    76 

    77     // WebPluginContainer methods

    78     virtual WebElement element();

    79     virtual void invalidate();

    80     virtual void invalidateRect(const WebRect&);

    81     virtual void reportGeometry();

    82     virtual void clearScriptObjects();

    83     virtual NPObject* scriptableObjectForElement();

    84     virtual WebString executeScriptURL(const WebURL&, bool popupsAllowed);

    85     virtual void loadFrameRequest(const WebURLRequest&, const WebString& target, bool notifyNeeded, void* notifyData);

    86 

    87     // This cannot be null.

    88     WebPlugin* plugin() { return m_webPlugin; }

    89     void setPlugin(WebPlugin* plugin) { m_webPlugin = plugin; }

    90 

    91     // Printing interface. The plugin can support custom printing

    92     // (which means it controls the layout, number of pages etc).

    93     // Whether the plugin supports its own paginated print. The other print

    94     // interface methods are called only if this method returns true.

    95     bool supportsPaginatedPrint() const;

    96     // Sets up printing at the given print rect and printer DPI. printableArea

    97     // is in points (a point is 1/72 of an inch).Returns the number of pages to

    98     // be printed at these settings.

    99     int printBegin(const WebCore::IntRect& printableArea, int printerDPI) const;

   100     // Prints the page specified by pageNumber (0-based index) into the supplied canvas.

   101     bool printPage(int pageNumber, WebCore::GraphicsContext* gc);

   102     // Ends the print operation.

   103     void printEnd();

   104 

   105     // Copy the selected text.

   106     void copy();

   107 

   108     // Resource load events for the plugin's source data:

   109     void didReceiveResponse(const WebCore::ResourceResponse&);

   110     void didReceiveData(const char *data, int dataLength);

   111     void didFinishLoading();

   112     void didFailLoading(const WebCore::ResourceError&);

   113 

   114     NPObject* scriptableObject();

   115 

   116     void willDestroyPluginLoadObserver(WebPluginLoadObserver*);

   117 

   118 private:

   119     WebPluginContainerImpl(WebCore::HTMLPlugInElement* element, WebPlugin* webPlugin)

   120         : m_element(element)

   121         , m_webPlugin(webPlugin) { }

   122     ~WebPluginContainerImpl();

   123 

   124     void handleMouseEvent(WebCore::MouseEvent*);

   125     void handleWheelEvent(WebCore::WheelEvent*);

   126     void handleKeyboardEvent(WebCore::KeyboardEvent*);

   127 

   128     void calculateGeometry(const WebCore::IntRect& frameRect,

   129                            WebCore::IntRect& windowRect,

   130                            WebCore::IntRect& clipRect,

   131                            Vector<WebCore::IntRect>& cutOutRects);

   132     WebCore::IntRect windowClipRect() const;

   133     void windowCutOutRects(const WebCore::IntRect& frameRect,

   134                            Vector<WebCore::IntRect>& cutOutRects);

   135 

   136     WebCore::HTMLPlugInElement* m_element;

   137     WebPlugin* m_webPlugin;

   138     Vector<WebPluginLoadObserver*> m_pluginLoadObservers;

   139 };

   140 

   141 } // namespace WebKit

   142 

   143 #endif