Refactor LauncherDelegate

ash/launcher/launcher_item_delegate.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_LAUNCHER_LAUNCHER_DELEGATE_H_
-#define ASH_LAUNCHER_LAUNCHER_DELEGATE_H_
+#ifndef ASH_LAUNCHER_LAUNCHER_ITEM_DELEGATE_H_
+#define ASH_LAUNCHER_LAUNCHER_ITEM_DELEGATE_H_
 
 #include "ash/ash_export.h"
 #include "ash/launcher/launcher_types.h"
 #include "base/strings/string16.h"
 #include "ui/base/models/simple_menu_model.h"
 
 namespace aura {
 class RootWindow;
 }
 
 namespace ui {
 class Event;
 }
 
 namespace ash {
-class Launcher;
 
 // A special menu model which keeps track of an "active" menu item.
 class ASH_EXPORT LauncherMenuModel : public ui::SimpleMenuModel {
  public:
   explicit LauncherMenuModel(ui::SimpleMenuModel::Delegate* delegate)
       : ui::SimpleMenuModel(delegate) {}
 
   // Returns |true| when the given |command_id| is active and needs to be drawn
   // in a special state.
   virtual bool IsCommandActive(int command_id) const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LauncherMenuModel);
 };
 
-// Delegate for the Launcher.
-class ASH_EXPORT LauncherDelegate {
+// Delegate for the LauncherItem.
+// TODO(simon.hong81): Remove LauncherItem from abstract function parameters.
+class ASH_EXPORT LauncherItemDelegate {
  public:
-  // Launcher owns the delegate.
-  virtual ~LauncherDelegate() {}
+  virtual ~LauncherItemDelegate() {}
 
   // Invoked when the user clicks on a window entry in the launcher.
   // |event| is the click event. The |event| is dispatched by a view
   // and has an instance of |views::View| as the event target
   // but not |aura::Window|. If the |event| is of type KeyEvent, it is assumed
   // that this was triggered by keyboard action (Alt+<number>) and special
   // handling might happen.
   virtual void ItemSelected(const LauncherItem& item,
                             const ui::Event& event) = 0;
 
@@ skipping 12 matching lines @@
   //  - A return of a menu with one item means that only the name of the
   //    application/item was added and there are no active applications.
   //    Note: This is useful for hover menus which also show context help.
   //  - A list containing the title and the active list of items.
   // The caller takes ownership of the returned model.
   // |event_flags| specifies the flags of the event which triggered this menu.
   virtual LauncherMenuModel* CreateApplicationMenu(
       const LauncherItem& item,
       int event_flags) = 0;
 
-  // Returns the id of the item associated with the specified window, or 0 if
-  // there isn't one.
-  // Note: Windows of tabbed browsers will return the |LauncherID| of the
-  // currently active tab or selected tab.
-  virtual LauncherID GetIDByWindow(aura::Window* window) = 0;
-
   // Whether the given launcher item is draggable.
   virtual bool IsDraggable(const LauncherItem& item) = 0;
 
   // Returns true if a tooltip should be shown for the item.
   virtual bool ShouldShowTooltip(const LauncherItem& item) = 0;
-
-  // Callback used to allow delegate to perform initialization actions that
-  // depend on the Launcher being in a known state.
-  virtual void OnLauncherCreated(Launcher* launcher) = 0;
-
-  // Callback used to inform the delegate that a specific launcher no longer
-  // exists.
-  virtual void OnLauncherDestroyed(Launcher* launcher) = 0;
-
-  // Get the launcher ID from an application ID.
-  virtual LauncherID GetLauncherIDForAppID(const std::string& app_id) = 0;
-
-  // Get the application ID for a given launcher ID.
-  virtual const std::string& GetAppIDForLauncherID(LauncherID id) = 0;
-
-  // Pins an app with |app_id| to launcher. A running instance will get pinned.
-  // In case there is no running instance a new launcher item is created and
-  // pinned.
-  virtual void PinAppWithID(const std::string& app_id) = 0;
-
-  // Check if the app with |app_id_| is pinned to the launcher.
-  virtual bool IsAppPinned(const std::string& app_id) = 0;
-
-  // Unpins app item with |app_id|.
-  virtual void UnpinAppWithID(const std::string& app_id) = 0;
 };
 
 }  // namespace ash
 
-#endif  // ASH_LAUNCHER_LAUNCHER_DELEGATE_H_
+#endif  // ASH_LAUNCHER_LAUNCHER_ITEM_DELEGATE_H_