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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_UI_APP_LIST_EXTENSION_APP_ITEM_H_
      6 #define CHROME_BROWSER_UI_APP_LIST_EXTENSION_APP_ITEM_H_
      7 
      8 #include <string>
      9 
     10 #include "base/memory/scoped_ptr.h"
     11 #include "chrome/browser/extensions/extension_icon_image.h"
     12 #include "chrome/browser/ui/app_list/app_context_menu_delegate.h"
     13 #include "chrome/browser/ui/app_list/chrome_app_list_item.h"
     14 #include "chrome/browser/ui/extensions/extension_enable_flow_delegate.h"
     15 #include "sync/api/string_ordinal.h"
     16 #include "ui/gfx/image/image_skia.h"
     17 
     18 class AppListControllerDelegate;
     19 class ExtensionEnableFlow;
     20 class Profile;
     21 
     22 namespace app_list {
     23 class AppContextMenu;
     24 }
     25 
     26 namespace extensions {
     27 class ContextMenuMatcher;
     28 class Extension;
     29 }
     30 
     31 // ExtensionAppItem represents an extension app in app list.
     32 class ExtensionAppItem : public ChromeAppListItem,
     33                          public extensions::IconImage::Observer,
     34                          public ExtensionEnableFlowDelegate,
     35                          public app_list::AppContextMenuDelegate {
     36  public:
     37   ExtensionAppItem(Profile* profile,
     38                    const std::string& extension_id,
     39                    AppListControllerDelegate* controller,
     40                    const std::string& extension_name,
     41                    const gfx::ImageSkia& installing_icon,
     42                    bool is_platform_app);
     43   virtual ~ExtensionAppItem();
     44 
     45   // Reload the title and icon from the underlying extension.
     46   void Reload();
     47 
     48   syncer::StringOrdinal GetPageOrdinal() const;
     49   syncer::StringOrdinal GetAppLaunchOrdinal() const;
     50 
     51   // Update page and app launcher ordinals to put the app in between |prev| and
     52   // |next|. Note that |prev| and |next| could be NULL when the app is put at
     53   // the beginning or at the end.
     54   void Move(const ExtensionAppItem* prev, const ExtensionAppItem* next);
     55 
     56   // Updates the app item's icon, if necessary adding an overlay and/or making
     57   // it gray.
     58   void UpdateIcon();
     59 
     60   const std::string& extension_id() const { return extension_id_; }
     61 
     62  private:
     63   // Gets extension associated with this model. Returns NULL if extension
     64   // no longer exists.
     65   const extensions::Extension* GetExtension() const;
     66 
     67   // Loads extension icon.
     68   void LoadImage(const extensions::Extension* extension);
     69 
     70   // Checks if extension is disabled and if enable flow should be started.
     71   // Returns true if extension enable flow is started or there is already one
     72   // running.
     73   bool RunExtensionEnableFlow();
     74 
     75   // Private equivalent to Activate(), without refocus for already-running apps.
     76   void Launch(int event_flags);
     77 
     78   // Whether or not the app item has an overlay.
     79   bool HasOverlay() const;
     80 
     81   // Overridden from extensions::IconImage::Observer:
     82   virtual void OnExtensionIconImageChanged(
     83       extensions::IconImage* image) OVERRIDE;
     84 
     85   // Overridden from ExtensionEnableFlowDelegate:
     86   virtual void ExtensionEnableFlowFinished() OVERRIDE;
     87   virtual void ExtensionEnableFlowAborted(bool user_initiated) OVERRIDE;
     88 
     89   // Overridden from ChromeAppListItem:
     90   virtual void Activate(int event_flags) OVERRIDE;
     91   virtual ui::MenuModel* GetContextMenuModel() OVERRIDE;
     92 
     93   // Overridden from app_list::AppContextMenuDelegate:
     94   virtual void ExecuteLaunchCommand(int event_flags) OVERRIDE;
     95 
     96   Profile* profile_;
     97   const std::string extension_id_;
     98   AppListControllerDelegate* controller_;
     99 
    100   scoped_ptr<extensions::IconImage> icon_;
    101   scoped_ptr<app_list::AppContextMenu> context_menu_;
    102   scoped_ptr<ExtensionEnableFlow> extension_enable_flow_;
    103 
    104   // Name to use for the extension if we can't access it.
    105   std::string extension_name_;
    106 
    107   // Icon for the extension if we can't access the installed extension.
    108   gfx::ImageSkia installing_icon_;
    109 
    110   // Whether or not this app is a platform app.
    111   bool is_platform_app_;
    112 
    113   DISALLOW_COPY_AND_ASSIGN(ExtensionAppItem);
    114 };
    115 
    116 #endif  // CHROME_BROWSER_UI_APP_LIST_EXTENSION_APP_ITEM_H_
    117