Refactor LauncherDelegate

ash/launcher/launcher_delegate_proxy.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/launcher/launcher_delegate_proxy.h"
+
+#include "ash/launcher/ash_launcher_delegate.h"
+#include "ash/shell.h"
+#include "ash/shell_delegate.h"
+#include "ui/aura/window.h"
+
+namespace ash {
+namespace internal {
+
+LauncherDelegateProxy::LauncherDelegateProxy() {
+  DCHECK(Shell::GetInstance()->launcher_model());
+  chrome_launcher_delegate_.reset(
+      Shell::GetInstance()->delegate()->CreateLauncherDelegate(
+          Shell::GetInstance()->launcher_model()));
+
+  ash_launcher_delegate_.reset(new AshLauncherDelegate);
+}
+
+LauncherDelegateProxy::~LauncherDelegateProxy() {
+}
+
+ash::LauncherID LauncherDelegateProxy::GetIDByWindow(aura::Window* window) {
+  ash::LauncherID id = chrome_launcher_delegate_->GetIDByWindow(window);
+  return id ? id : ash_launcher_delegate_->GetIDByWindow(window);
+}
+
+void LauncherDelegateProxy::OnLauncherCreated(Launcher* launcher) {
+  chrome_launcher_delegate_->OnLauncherCreated(launcher);
+  ash_launcher_delegate_->OnLauncherCreated(launcher);
+}
+
+void LauncherDelegateProxy::OnLauncherDestroyed(Launcher* launcher) {
+  chrome_launcher_delegate_->OnLauncherDestroyed(launcher);
+  ash_launcher_delegate_->OnLauncherDestroyed(launcher);
+}
+
+LauncherID LauncherDelegateProxy::GetLauncherIDForAppID(
+    const std::string& app_id) {
+  // Only ChromeLauncherDelegate can pin apps.
+  return chrome_launcher_delegate_->GetLauncherIDForAppID(app_id);
+}
+
+void LauncherDelegateProxy::PinAppWithID(const std::string& app_id) {
+  // Only ChromeLauncherDelegate can pin apps.
+  chrome_launcher_delegate_->PinAppWithID(app_id);
+}
+
+bool LauncherDelegateProxy::IsAppPinned(const std::string& app_id) {
+  // Only ChromeLauncherDelegate can pin apps.
+  return chrome_launcher_delegate_->IsAppPinned(app_id);
+}
+
+void LauncherDelegateProxy::UnpinAppsWithID(const std::string& app_id) {
+  // Only ChromeLauncherDelegate can pin apps.
+  chrome_launcher_delegate_->UnpinAppsWithID(app_id);
+}
+
+LauncherItemDelegate* LauncherDelegateProxy::GetLauncherItemDelegate(
+    const LauncherItem& item) {
+  switch(item.type) {
+    case TYPE_TABBED:
+    case TYPE_APP_PANEL:
+    case TYPE_APP_SHORTCUT:
+    case TYPE_BROWSER_SHORTCUT:
+    case TYPE_PLATFORM_APP:
+    case TYPE_WINDOWED_APP:
+      return chrome_launcher_delegate_->GetLauncherItemDelegate(item);
+    case TYPE_APP_LIST:
+      return ash_launcher_delegate_->GetLauncherItemDelegate(item);
+    default:
+      NOTREACHED();
+  }
+  return NULL;
+}
+
+}  // namespace internal
+}  // namespace ash