ash/mash: Introduce a ShelfDelegate implementation for mash.

ash/mus/shelf_delegate_mus.cc

+// Copyright 2016 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/mus/shelf_delegate_mus.h"
+
+#include "ash/shelf/shelf_item_delegate.h"
+#include "ash/shelf/shelf_item_delegate_manager.h"
+#include "ash/shelf/shelf_model.h"
+#include "ash/shell.h"
+#include "base/strings/string_util.h"
+#include "mojo/common/common_type_converters.h"
+#include "mojo/shell/public/cpp/shell.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/resources/grit/ui_resources.h"
+#include "ui/views/mus/window_manager_connection.h"
+
+using mash::wm::mojom::UserWindowController;
+
+namespace ash {
+namespace sysui {
+
+namespace {
+
+class ShelfItemDelegateMus : public ShelfItemDelegate {
+ public:
+  ShelfItemDelegateMus(uint32_t window_id,
+                       const base::string16& title,
+                       UserWindowController* user_window_controller)
+      : window_id_(window_id),
+        title_(title),
+        user_window_controller_(user_window_controller) {}
+  ~ShelfItemDelegateMus() override {}
+
+  void UpdateTitle(const base::string16& new_title) { title_ = new_title; }
+
+ private:
+  // ShelfItemDelegate:
+  ShelfItemDelegate::PerformedAction ItemSelected(
+      const ui::Event& event) override {
+    user_window_controller_->FocusUserWindow(window_id_);
+    return kExistingWindowActivated;
+  }
+
+  base::string16 GetTitle() override { return title_; }
+
+  ui::MenuModel* CreateContextMenu(aura::Window* root_window) override {
+    NOTIMPLEMENTED();
+    return nullptr;
+  }
+
+  bool CanPin() const override {
+    NOTIMPLEMENTED();
+    return false;
+  }
+
+  ShelfMenuModel* CreateApplicationMenu(int event_flags) override {
+    NOTIMPLEMENTED();
+    return nullptr;
+  }
+
+  bool IsDraggable() override {
+    NOTIMPLEMENTED();
+    return false;
+  }
+
+  bool ShouldShowTooltip() override {
+    // NOTIMPLEMENTED(); very noisy
+    return false;
+  }
+
+  void Close() override { NOTIMPLEMENTED(); }
+
+  // TODO(msw): Support multiple open windows per button.
+  uint32_t window_id_;
+  base::string16 title_;
+  UserWindowController* user_window_controller_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShelfItemDelegateMus);
+};
+
+}  // namespace
+
+ShelfDelegateMus::ShelfDelegateMus(ShelfModel* model)
+    : model_(model), binding_(this) {
+  mojo::Shell* shell = views::WindowManagerConnection::Get()->shell();
+  shell->ConnectToInterface("mojo:desktop_wm", &user_window_controller_);
+  user_window_controller_->AddUserWindowObserver(
+      binding_.CreateInterfacePtrAndBind());
+}
+
+ShelfDelegateMus::~ShelfDelegateMus() {}
+
+void ShelfDelegateMus::OnShelfCreated(Shelf* shelf) {
+  NOTIMPLEMENTED();
+}
+
+void ShelfDelegateMus::OnShelfDestroyed(Shelf* shelf) {
+  NOTIMPLEMENTED();
+}
+
+ShelfID ShelfDelegateMus::GetShelfIDForAppID(const std::string& app_id) {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+bool ShelfDelegateMus::HasShelfIDToAppIDMapping(ShelfID id) const {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+const std::string& ShelfDelegateMus::GetAppIDForShelfID(ShelfID id) {
+  NOTIMPLEMENTED();
+  return base::EmptyString();
+}
+
+void ShelfDelegateMus::PinAppWithID(const std::string& app_id) {
+  NOTIMPLEMENTED();
+}
+
+bool ShelfDelegateMus::IsAppPinned(const std::string& app_id) {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+void ShelfDelegateMus::UnpinAppWithID(const std::string& app_id) {
+  NOTIMPLEMENTED();
+}
+
+void ShelfDelegateMus::OnUserWindowObserverAdded(
+    mojo::Array<mash::wm::mojom::UserWindowPtr> user_windows) {
+  for (size_t i = 0; i < user_windows.size(); ++i)
+    OnUserWindowAdded(std::move(user_windows[i]));
+}
+
+void ShelfDelegateMus::OnUserWindowAdded(
+    mash::wm::mojom::UserWindowPtr user_window) {
+  ShelfItem item;
+  item.type = TYPE_PLATFORM_APP;
+  item.status = user_window->window_has_focus ? STATUS_ACTIVE : STATUS_RUNNING;
+  // TODO(msw): Support actual window icons.
+  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+  item.image = *rb.GetImageSkiaNamed(IDR_DEFAULT_FAVICON);
+
+  ShelfID shelf_id = model_->next_id();
+  window_id_to_shelf_id_.insert(
+      std::make_pair(user_window->window_id, shelf_id));
+  model_->Add(item);
+
+  ShelfItemDelegateManager* manager =
+      Shell::GetInstance()->shelf_item_delegate_manager();
+  scoped_ptr<ShelfItemDelegate> delegate(new ShelfItemDelegateMus(
+      user_window->window_id, user_window->window_title.To<base::string16>(),
+      user_window_controller_.get()));
+  manager->SetShelfItemDelegate(shelf_id, std::move(delegate));
+}
+
+void ShelfDelegateMus::OnUserWindowRemoved(uint32_t window_id) {
+  DCHECK(window_id_to_shelf_id_.count(window_id));
+  model_->RemoveItemAt(
+      model_->ItemIndexByID(window_id_to_shelf_id_[window_id]));
+}
+
+void ShelfDelegateMus::OnUserWindowTitleChanged(
+    uint32_t window_id,
+    const mojo::String& window_title) {
+  DCHECK(window_id_to_shelf_id_.count(window_id));
+  ShelfID shelf_id = window_id_to_shelf_id_[window_id];
+  ShelfItemDelegateManager* manager =
+      Shell::GetInstance()->shelf_item_delegate_manager();
+  ShelfItemDelegate* delegate = manager->GetShelfItemDelegate(shelf_id);
+  DCHECK(delegate);
+  static_cast<ShelfItemDelegateMus*>(delegate)->UpdateTitle(
+      window_title.To<base::string16>());
+
+  // There's nothing in the ShelfItem that needs to be updated. But we still
+  // need to update the ShelfModel so that the observers can pick up any
+  // changes.
+  int index = model_->ItemIndexByID(shelf_id);
+  DCHECK_GE(index, 0);
+  ShelfItems::const_iterator iter = model_->ItemByID(shelf_id);
+  DCHECK(iter != model_->items().end());
+  model_->Set(index, *iter);
+}
+
+void ShelfDelegateMus::OnUserWindowFocusChanged(uint32_t window_id,
+                                                bool has_focus) {
+  DCHECK(window_id_to_shelf_id_.count(window_id));
+  ShelfID shelf_id = window_id_to_shelf_id_[window_id];
+  int index = model_->ItemIndexByID(shelf_id);
+  DCHECK_GE(index, 0);
+  ShelfItems::const_iterator iter = model_->ItemByID(shelf_id);
+  DCHECK(iter != model_->items().end());
+  ShelfItem item = *iter;
+  item.status = has_focus ? STATUS_ACTIVE : STATUS_RUNNING;
+  model_->Set(index, item);
+}
+
+}  // namespace sysui
+}  // namespace ash