chrome/browser/web_applications/update_shortcut_worker_win.h

   1 // Copyright 2014 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_WEB_APPLICATIONS_UPDATE_SHORTCUT_WORKER_WIN_H_
   6 #define CHROME_BROWSER_WEB_APPLICATIONS_UPDATE_SHORTCUT_WORKER_WIN_H_
   7
   8 #include "chrome/browser/shell_integration.h"
   9 #include "chrome/browser/web_applications/web_app.h"
  10 #include "content/public/browser/notification_observer.h"
  11 #include "content/public/browser/notification_registrar.h"
  12
  13 namespace content {
  14 class NotificationDetails;
  15 class NotificationSource;
  16 class WebContents;
  17 }
  18
  19 namespace web_app {
  20
  21 // UpdateShortcutWorker holds all context data needed for update shortcut.
  22 // It schedules a pre-update check to find all shortcuts that needs to be
  23 // updated. If there are such shortcuts, it schedules icon download and
  24 // update them when icons are downloaded. It observes TAB_CLOSING notification
  25 // and cancels all the work when the underlying tab is closing.
  26 class UpdateShortcutWorker : public content::NotificationObserver {
  27  public:
  28   explicit UpdateShortcutWorker(content::WebContents* web_contents);
  29
  30   void Run();
  31
  32  private:
  33   // Overridden from content::NotificationObserver:
  34   virtual void Observe(int type,
  35                        const content::NotificationSource& source,
  36                        const content::NotificationDetails& details);
  37
  38   // Downloads icon via the FaviconTabHelper.
  39   void DownloadIcon();
  40
  41   // Favicon download callback.
  42   void DidDownloadFavicon(
  43       int requested_size,
  44       int id,
  45       int http_status_code,
  46       const GURL& image_url,
  47       const std::vector<SkBitmap>& bitmaps,
  48       const std::vector<gfx::Size>& original_bitmap_sizes);
  49
  50   // Checks if shortcuts exists on desktop, start menu and quick launch.
  51   void CheckExistingShortcuts();
  52
  53   // Update shortcut files and icons.
  54   void UpdateShortcuts();
  55   void UpdateShortcutsOnFileThread();
  56
  57   // Callback after shortcuts are updated.
  58   void OnShortcutsUpdated(bool);
  59
  60   // Deletes the worker on UI thread where it gets created.
  61   void DeleteMe();
  62   void DeleteMeOnUIThread();
  63
  64   content::NotificationRegistrar registrar_;
  65
  66   // Underlying WebContents whose shortcuts will be updated.
  67   content::WebContents* web_contents_;
  68
  69   // Icons info from web_contents_'s web app data.
  70   web_app::IconInfoList unprocessed_icons_;
  71
  72   // Cached shortcut data from the web_contents_.
  73   web_app::ShortcutInfo shortcut_info_;
  74
  75   // Our copy of profile path.
  76   base::FilePath profile_path_;
  77
  78   // File name of shortcut/ico file based on app title.
  79   base::FilePath file_name_;
  80
  81   // Existing shortcuts.
  82   std::vector<base::FilePath> shortcut_files_;
  83
  84   DISALLOW_COPY_AND_ASSIGN(UpdateShortcutWorker);
  85 };
  86
  87 }  // namespace web_app
  88
  89 #endif  // CHROME_BROWSER_WEB_APPLICATIONS_UPDATE_SHORTCUT_WORKER_WIN_H_