chrome/browser/plugins/plugin_installer.h

   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_INSTALLER_H_
   6 #define CHROME_BROWSER_PLUGINS_PLUGIN_INSTALLER_H_
   7
   8 #include "base/observer_list.h"
   9 #include "base/string16.h"
  10 #include "base/version.h"
  11 #include "chrome/browser/plugins/plugin_metadata.h"
  12 #include "content/public/browser/download_item.h"
  13 #include "googleurl/src/gurl.h"
  14 #include "net/base/net_errors.h"
  15
  16 class PluginInstallerObserver;
  17 class WeakPluginInstallerObserver;
  18
  19 namespace content {
  20 class WebContents;
  21 }
  22
  23 namespace webkit {
  24 struct WebPluginInfo;
  25 }
  26
  27 class PluginInstaller : public content::DownloadItem::Observer {
  28  public:
  29   enum InstallerState {
  30     INSTALLER_STATE_IDLE,
  31     INSTALLER_STATE_DOWNLOADING,
  32   };
  33
  34   PluginInstaller();
  35   virtual ~PluginInstaller();
  36
  37   virtual void OnDownloadUpdated(content::DownloadItem* download) OVERRIDE;
  38   virtual void OnDownloadDestroyed(content::DownloadItem* download) OVERRIDE;
  39
  40   void AddObserver(PluginInstallerObserver* observer);
  41   void RemoveObserver(PluginInstallerObserver* observer);
  42
  43   void AddWeakObserver(WeakPluginInstallerObserver* observer);
  44   void RemoveWeakObserver(WeakPluginInstallerObserver* observer);
  45
  46   InstallerState state() const { return state_; }
  47
  48   // Opens the download URL in a new tab.
  49   void OpenDownloadURL(const GURL& plugin_url,
  50                        content::WebContents* web_contents);
  51
  52   // Starts downloading the download URL and opens the downloaded file
  53   // when finished.
  54   void StartInstalling(const GURL& plugin_url,
  55                        content::WebContents* web_contents);
  56
  57  private:
  58   void DownloadStarted(scoped_refptr<content::DownloadManager> dlm,
  59                        content::DownloadItem* item,
  60                        net::Error error);
  61   void DownloadError(const std::string& msg);
  62   void DownloadCancelled();
  63
  64   InstallerState state_;
  65   ObserverList<PluginInstallerObserver> observers_;
  66   ObserverList<WeakPluginInstallerObserver> weak_observers_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(PluginInstaller);
  69 };
  70
  71 #endif  // CHROME_BROWSER_PLUGINS_PLUGIN_INSTALLER_H_