mash: Use mojo for ShelfItemDelegate and [app] MenuItem.

ash/common/shelf/shelf_controller.cc

Index: ash/common/shelf/shelf_controller.cc
diff --git a/ash/common/shelf/shelf_controller.cc b/ash/common/shelf/shelf_controller.cc
index 5bfece459d04d7b7e138ee7374678e1b1f0fcf3c..be48a2cb299ca904d24364a6e865a2b91196ad09 100644
--- a/ash/common/shelf/shelf_controller.cc
+++ b/ash/common/shelf/shelf_controller.cc
@@ -22,80 +22,6 @@ namespace ash {
 
 namespace {
 
-// A ShelfItemDelegate used for pinned items in mash.
-// TODO(mash): Support open windows, cooperate with ShelfWindowWatcher.
-class ShelfItemDelegateMus : public ShelfItemDelegate {
- public:
-  ShelfItemDelegateMus() {}
-  ~ShelfItemDelegateMus() override {}
-
-  void SetDelegate(mojom::ShelfItemDelegateAssociatedPtrInfo delegate) {
-    delegate_.Bind(std::move(delegate));
-  }
-
-  bool pinned() const { return pinned_; }
-  void set_pinned(bool pinned) { pinned_ = pinned; }
-
-  void AddWindow(uint32_t id, const base::string16& title) {
-    DCHECK(!window_id_to_title_.count(id));
-    window_id_to_title_.insert(std::make_pair(id, title));
-  }
-  void RemoveWindow(uint32_t id) { window_id_to_title_.erase(id); }
-  void SetWindowTitle(uint32_t id, const base::string16& title) {
-    DCHECK(window_id_to_title_.count(id));
-    window_id_to_title_[id] = title;
-  }
-  const std::map<uint32_t, base::string16>& window_id_to_title() const {
-    return window_id_to_title_;
-  }
-
-  const base::string16& title() { return title_; }
-  void set_title(const base::string16& title) { title_ = title; }
-
- private:
-  // ShelfItemDelegate:
-  ShelfAction ItemSelected(ui::EventType event_type,
-                           int event_flags,
-                           int64_t display_id,
-                           ShelfLaunchSource source) override {
-    if (window_id_to_title_.empty()) {
-      delegate_->LaunchItem();
-      return SHELF_ACTION_NEW_WINDOW_CREATED;
-    }
-    if (window_id_to_title_.size() == 1) {
-      // TODO(mash): Activate the window and return
-      // SHELF_ACTION_WINDOW_ACTIVATED.
-      NOTIMPLEMENTED();
-    }
-    return SHELF_ACTION_NONE;
-  }
-
-  ShelfAppMenuItemList GetAppMenuItems(int event_flags) override {
-    // Return an empty item list to avoid showing an application menu.
-    return ShelfAppMenuItemList();
-  }
-
-  void ExecuteCommand(uint32_t command_id, int event_flags) override {
-    // This delegate does not support showing an application menu.
-    NOTIMPLEMENTED();
-  }
-
-  void Close() override { NOTIMPLEMENTED(); }
-
-  mojom::ShelfItemDelegateAssociatedPtr delegate_;
-  bool pinned_ = false;
-  std::map<uint32_t, base::string16> window_id_to_title_;
-  base::string16 title_;
-
-  DISALLOW_COPY_AND_ASSIGN(ShelfItemDelegateMus);
-};
-
-// Returns the ShelfItemDelegateMus instance for the given |shelf_id|.
-ShelfItemDelegateMus* GetShelfItemDelegate(ShelfID shelf_id) {
-  return static_cast<ShelfItemDelegateMus*>(
-      WmShell::Get()->shelf_model()->GetShelfItemDelegate(shelf_id));
-}
-
 // Returns an icon image from an SkBitmap, or the default shelf icon image if
 // the bitmap is empty. Assumes the bitmap is a 1x icon.
 // TODO(jamescook): Support other scale factors.
@@ -187,46 +113,11 @@ void ShelfController::SetAutoHideBehavior(ShelfAutoHideBehavior auto_hide,
 void ShelfController::PinItem(
     mojom::ShelfItemPtr item,
     mojom::ShelfItemDelegateAssociatedPtrInfo delegate) {
-  if (app_id_to_shelf_id_.count(item->app_id)) {
-    ShelfID shelf_id = app_id_to_shelf_id_[item->app_id];
-    ShelfItemDelegateMus* item_delegate = GetShelfItemDelegate(shelf_id);
-    item_delegate->SetDelegate(std::move(delegate));
-    item_delegate->set_pinned(true);
-    return;
-  }
-
-  ShelfID shelf_id = model_.next_id();
-  app_id_to_shelf_id_.insert(std::make_pair(item->app_id, shelf_id));
-  shelf_id_to_app_id_.insert(std::make_pair(shelf_id, item->app_id));
-
-  ShelfItem shelf_item;
-  shelf_item.type = TYPE_APP_SHORTCUT;
-  shelf_item.status = STATUS_CLOSED;
-  shelf_item.image = GetShelfIconFromBitmap(item->image);
-  shelf_item.title = base::UTF8ToUTF16(item->app_title);
-  model_.Add(shelf_item);
-
-  std::unique_ptr<ShelfItemDelegateMus> item_delegate =
-      base::MakeUnique<ShelfItemDelegateMus>();
-  item_delegate->SetDelegate(std::move(delegate));
-  item_delegate->set_pinned(true);
-  item_delegate->set_title(shelf_item.title);
-  model_.SetShelfItemDelegate(shelf_id, std::move(item_delegate));
+  NOTIMPLEMENTED();
 }
 
 void ShelfController::UnpinItem(const std::string& app_id) {
-  if (!app_id_to_shelf_id_.count(app_id))
-    return;
-
-  ShelfID shelf_id = app_id_to_shelf_id_[app_id];
-  ShelfItemDelegateMus* item_delegate = GetShelfItemDelegate(shelf_id);
-  DCHECK(item_delegate->pinned());
-  item_delegate->set_pinned(false);
-  if (item_delegate->window_id_to_title().empty()) {
-    model_.RemoveItemAt(model_.ItemIndexByID(shelf_id));
-    app_id_to_shelf_id_.erase(app_id);
-    shelf_id_to_app_id_.erase(shelf_id);
-  }
+  NOTIMPLEMENTED();
 }
 
 void ShelfController::SetItemImage(const std::string& app_id,