Refactor LauncherItemController and LauncherItemDelegate

ash/shell/launcher_item_delegate_impl.cc

+// 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.
+
+#include "ash/shell/launcher_item_delegate_impl.h"
+
+#include "ash/shell/window_watcher.h"
+#include "ash/wm/window_util.h"
+#include "ui/aura/window.h"
+
+namespace ash {
+namespace shell {
+
+LauncherItemDelegateImpl::LauncherItemDelegateImpl(
+    ash::LauncherID id,
+    ash::shell::WindowWatcher* watcher)
+    : id_(id),
+      watcher_(watcher) {
+  DCHECK(watcher_);
+}
+
+LauncherItemDelegateImpl::~LauncherItemDelegateImpl() {
+}
+
+void LauncherItemDelegateImpl::ItemSelected(const ui::Event& event) {
+  aura::Window* window = watcher_->GetWindowByID(id_);
+  if (window->type() == aura::client::WINDOW_TYPE_PANEL)
+    ash::wm::MoveWindowToEventRoot(window, event);
+  window->Show();
+  ash::wm::ActivateWindow(window);
+}
+
+base::string16 LauncherItemDelegateImpl::GetTitle() {
+  return watcher_->GetWindowByID(id_)->title();
+}
+
+ui::MenuModel* LauncherItemDelegateImpl::CreateContextMenu(
+    aura::RootWindow* root_window) {
+  return NULL;
+}
+
+ash::LauncherMenuModel* LauncherItemDelegateImpl::CreateApplicationMenu(
+    int event_flags) {
+  return NULL;
+}
+
+bool LauncherItemDelegateImpl::IsDraggable() {
+  return true;
+}
+
+bool LauncherItemDelegateImpl::ShouldShowTooltip() {
+  return true;
+}
+
+}  // namespace shell
+}  // namespace ash