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      1 /*
      2  * Copyright (c) 2008, 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 #include "config.h"
     32 #include "PluginDataChromium.h"
     33 
     34 #include "PlatformBridge.h"
     35 
     36 namespace WebCore {
     37 
     38 class PluginCache {
     39 public:
     40     PluginCache() : m_loaded(false), m_refresh(false) {}
     41     ~PluginCache() { reset(false); }
     42 
     43     void reset(bool refresh)
     44     {
     45         m_plugins.clear();
     46         m_loaded = false;
     47         m_refresh = refresh;
     48     }
     49 
     50     const Vector<PluginInfo>& plugins()
     51     {
     52         if (!m_loaded) {
     53             PlatformBridge::plugins(m_refresh, &m_plugins);
     54             m_loaded = true;
     55             m_refresh = false;
     56         }
     57         return m_plugins;
     58     }
     59 
     60 private:
     61     Vector<PluginInfo> m_plugins;
     62     bool m_loaded;
     63     bool m_refresh;
     64 };
     65 
     66 static PluginCache pluginCache;
     67 
     68 void PluginData::initPlugins(const Page*)
     69 {
     70     const Vector<PluginInfo>& plugins = pluginCache.plugins();
     71     for (size_t i = 0; i < plugins.size(); ++i)
     72         m_plugins.append(plugins[i]);
     73 }
     74 
     75 void PluginData::refresh()
     76 {
     77     pluginCache.reset(true);
     78     pluginCache.plugins();  // Force the plugins to be reloaded now.
     79 }
     80 
     81 String getPluginMimeTypeFromExtension(const String& extension)
     82 {
     83     const Vector<PluginInfo>& plugins = pluginCache.plugins();
     84     for (size_t i = 0; i < plugins.size(); ++i) {
     85         for (size_t j = 0; j < plugins[i].mimes.size(); ++j) {
     86             const MimeClassInfo& mime = plugins[i].mimes[j];
     87             const Vector<String>& extensions = mime.extensions;
     88             for (size_t k = 0; k < extensions.size(); ++k) {
     89                 if (extension == extensions[k])
     90                     return mime.type;
     91             }
     92         }
     93     }
     94     return String();
     95 }
     96 
     97 } // namespace WebCore
     98