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      1 /*
      2  * Copyright (C) 2012 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 WebHelperPluginImpl_h
     32 #define WebHelperPluginImpl_h
     33 
     34 #include "platform/Timer.h"
     35 #include "public/web/WebHelperPlugin.h"
     36 #include "wtf/FastAllocBase.h"
     37 #include "wtf/Noncopyable.h"
     38 #include "wtf/PassOwnPtr.h"
     39 #include "wtf/RefPtr.h"
     40 #include "wtf/text/WTFString.h"
     41 
     42 namespace blink {
     43 
     44 class HTMLObjectElement;
     45 class WebLocalFrameImpl;
     46 class WebPluginContainerImpl;
     47 
     48 // Utility class to host helper plugins for media. Internally, it creates a detached
     49 // HTMLPluginElement to host the plugin and uses FrameLoaderClient::createPlugin() to instantiate
     50 // the requested plugin.
     51 class WebHelperPluginImpl FINAL : public WebHelperPlugin {
     52     WTF_MAKE_NONCOPYABLE(WebHelperPluginImpl);
     53     WTF_MAKE_FAST_ALLOCATED;
     54 public:
     55     // WebHelperPlugin methods:
     56     virtual WebPlugin* getPlugin() OVERRIDE;
     57     virtual void destroy() OVERRIDE;
     58 
     59 private:
     60     friend class WebHelperPlugin;
     61 
     62     WebHelperPluginImpl();
     63     virtual ~WebHelperPluginImpl();
     64 
     65     bool initialize(const String& pluginType, WebLocalFrameImpl*);
     66     void reallyDestroy(Timer<WebHelperPluginImpl>*);
     67 
     68     Timer<WebHelperPluginImpl> m_destructionTimer;
     69     RefPtrWillBePersistent<HTMLObjectElement> m_objectElement;
     70     RefPtr<WebPluginContainerImpl> m_pluginContainer;
     71 };
     72 
     73 } // namespace blink
     74 
     75 #endif // WebHelperPluginImpl_h
     76