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 WebHelperPlugin_h 32 #define WebHelperPlugin_h 33 34 #include "../platform/WebCommon.h" 35 #include "WebFrame.h" 36 37 namespace blink { 38 39 class WebPlugin; 40 class WebString; 41 42 class WebHelperPlugin { 43 public: 44 // May return null if initialization fails. If the returned pointer is 45 // non-null, the caller must free it by calling destroy(). 46 BLINK_EXPORT static WebHelperPlugin* create(const WebString& PluginType, WebLocalFrame*); 47 48 // Returns a WebPlugin corresponding to the instantiated plugin. This will 49 // never return null. 50 virtual WebPlugin* getPlugin() = 0; 51 52 // Initiates destruction of the WebHelperPlugin. 53 virtual void destroy() = 0; 54 55 protected: 56 virtual ~WebHelperPlugin() { } 57 }; 58 59 } // namespace blink 60 61 namespace WTF { 62 63 template<typename T> struct OwnedPtrDeleter; 64 template<> struct OwnedPtrDeleter<blink::WebHelperPlugin> { 65 static void deletePtr(blink::WebHelperPlugin* plugin) 66 { 67 if (plugin) 68 plugin->destroy(); 69 } 70 }; 71 72 } // namespace WTF 73 74 #endif 75
