src/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/gtest_prod_util.h"
   9 #include "base/observer_list.h"
  10 #include "base/strings/string16.h"
  11 #include "base/version.h"
  12 #include "chrome/browser/plugins/plugin_metadata.h"
  13 #include "content/public/browser/download_interrupt_reasons.h"
  14 #include "content/public/browser/download_item.h"
  15 #include "url/gurl.h"
  16
  17 class PluginInstallerObserver;
  18 class WeakPluginInstallerObserver;
  19
  20 namespace content {
  21 class DownloadManager;
  22 class WebContents;
  23 struct WebPluginInfo;
  24 }
  25
  26 class PluginInstaller : public content::DownloadItem::Observer {
  27  public:
  28   enum InstallerState {
  29     INSTALLER_STATE_IDLE,
  30     INSTALLER_STATE_DOWNLOADING,
  31   };
  32
  33   PluginInstaller();
  34   ~PluginInstaller() override;
  35
  36   void OnDownloadUpdated(content::DownloadItem* download) override;
  37   void OnDownloadDestroyed(content::DownloadItem* download) override;
  38
  39   void AddObserver(PluginInstallerObserver* observer);
  40   void RemoveObserver(PluginInstallerObserver* observer);
  41
  42   void AddWeakObserver(WeakPluginInstallerObserver* observer);
  43   void RemoveWeakObserver(WeakPluginInstallerObserver* observer);
  44
  45   InstallerState state() const { return state_; }
  46
  47   // Opens the download URL in a new tab.
  48   void OpenDownloadURL(const GURL& plugin_url,
  49                        content::WebContents* web_contents);
  50
  51   // Starts downloading the download URL and opens the downloaded file
  52   // when finished.
  53   void StartInstalling(const GURL& plugin_url,
  54                        content::WebContents* web_contents);
  55
  56  private:
  57   void StartInstallingWithDownloadManager(
  58       const GURL& plugin_url,
  59       content::WebContents* web_contents,
  60       content::DownloadManager* download_manager);
  61   void DownloadStarted(content::DownloadItem* item,
  62                        content::DownloadInterruptReason interrupt_reason);
  63   void DownloadError(const std::string& msg);
  64   void DownloadCancelled();
  65
  66   InstallerState state_;
  67   ObserverList<PluginInstallerObserver> observers_;
  68   int strong_observer_count_;
  69   ObserverList<WeakPluginInstallerObserver> weak_observers_;
  70
  71   FRIEND_TEST_ALL_PREFIXES(PluginInstallerTest,
  72                            StartInstalling_SuccessfulDownload);
  73   FRIEND_TEST_ALL_PREFIXES(PluginInstallerTest, StartInstalling_FailedStart);
  74   FRIEND_TEST_ALL_PREFIXES(PluginInstallerTest, StartInstalling_Interrupted);
  75   DISALLOW_COPY_AND_ASSIGN(PluginInstaller);
  76 };
  77
  78 #endif  // CHROME_BROWSER_PLUGINS_PLUGIN_INSTALLER_H_