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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_PLUGINS_PLUGIN_OBSERVER_H_
      6 #define CHROME_BROWSER_PLUGINS_PLUGIN_OBSERVER_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "base/memory/weak_ptr.h"
     10 #include "content/public/browser/web_contents_observer.h"
     11 #include "content/public/browser/web_contents_user_data.h"
     12 
     13 #if defined(ENABLE_PLUGIN_INSTALLATION)
     14 #include <map>
     15 #endif
     16 
     17 class GURL;
     18 class PluginFinder;
     19 class PluginMetadata;
     20 
     21 #if defined(ENABLE_PLUGIN_INSTALLATION)
     22 class PluginInstaller;
     23 class PluginPlaceholderHost;
     24 #endif
     25 
     26 namespace content {
     27 class WebContents;
     28 }
     29 
     30 namespace infobars {
     31 class InfoBarDelegate;
     32 }
     33 
     34 class PluginObserver : public content::WebContentsObserver,
     35                        public content::WebContentsUserData<PluginObserver> {
     36  public:
     37   virtual ~PluginObserver();
     38 
     39   // content::WebContentsObserver implementation.
     40   virtual void RenderFrameCreated(
     41       content::RenderFrameHost* render_frame_host) OVERRIDE;
     42   virtual void PluginCrashed(const base::FilePath& plugin_path,
     43                              base::ProcessId plugin_pid) OVERRIDE;
     44   virtual bool OnMessageReceived(
     45       const IPC::Message& message,
     46       content::RenderFrameHost* render_frame_host) OVERRIDE;
     47   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     48 
     49  private:
     50   explicit PluginObserver(content::WebContents* web_contents);
     51   friend class content::WebContentsUserData<PluginObserver>;
     52 
     53   class PluginPlaceholderHost;
     54 
     55 #if defined(ENABLE_PLUGIN_INSTALLATION)
     56   void InstallMissingPlugin(PluginInstaller* installer,
     57                             const PluginMetadata* plugin_metadata);
     58 #endif
     59 
     60   // Message handlers:
     61   void OnBlockedUnauthorizedPlugin(const base::string16& name,
     62                                    const std::string& identifier);
     63   void OnBlockedOutdatedPlugin(int placeholder_id,
     64                                const std::string& identifier);
     65 #if defined(ENABLE_PLUGIN_INSTALLATION)
     66   void OnFindMissingPlugin(int placeholder_id, const std::string& mime_type);
     67 
     68   void OnRemovePluginPlaceholderHost(int placeholder_id);
     69 #endif
     70   void OnOpenAboutPlugins();
     71   void OnCouldNotLoadPlugin(const base::FilePath& plugin_path);
     72   void OnNPAPINotSupported(const std::string& identifier);
     73 
     74 #if defined(ENABLE_PLUGIN_INSTALLATION)
     75   // Stores all PluginPlaceholderHosts, keyed by their routing ID.
     76   std::map<int, PluginPlaceholderHost*> plugin_placeholders_;
     77 #endif
     78 
     79   base::WeakPtrFactory<PluginObserver> weak_ptr_factory_;
     80 
     81   DISALLOW_COPY_AND_ASSIGN(PluginObserver);
     82 };
     83 
     84 #endif  // CHROME_BROWSER_PLUGINS_PLUGIN_OBSERVER_H_
     85