PreferencesManager

ash/common/wm_shell.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/common/wm_shell.h"
 
 #include <utility>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/accelerators/ash_focus_manager_factory.h"
@@ skipping 28 matching lines @@
 #include "ash/common/wm/overview/window_selector_controller.h"
 #include "ash/common/wm/root_window_finder.h"
 #include "ash/common/wm/system_modal_container_layout_manager.h"
 #include "ash/common/wm/window_cycle_controller.h"
 #include "ash/common/wm_root_window_controller.h"
 #include "ash/common/wm_window.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
+#include "services/catalog/public/interfaces/constants.mojom.h"
+#include "services/preferences/public/cpp/pref_observer_store.h"
+#include "services/preferences/public/interfaces/preferences.mojom.h"
+#include "services/service_manager/public/cpp/connector.h"
 #include "ui/app_list/presenter/app_list_presenter.h"
 #include "ui/display/display.h"
 #include "ui/views/focus/focus_manager_factory.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/common/system/chromeos/brightness/brightness_controller_chromeos.h"
 #include "ash/common/system/chromeos/keyboard_brightness_controller.h"
 #include "ash/common/system/chromeos/network/vpn_list.h"
 #include "ash/common/system/chromeos/session/logout_confirmation_controller.h"
 #endif
@@ skipping 54 matching lines @@
   // ShelfWindowWatcher has window observers and a pointer to the shelf model.
   shelf_window_watcher_.reset();
   // ShelfItemDelegate subclasses it owns have complex cleanup to run (e.g. ARC
   // shelf items in Chrome) so explicitly shutdown early.
   shelf_model()->DestroyItemDelegates();
   // Must be destroyed before FocusClient.
   shelf_delegate_.reset();
 
   // Balances the Install() in Initialize().
   views::FocusManagerFactory::Install(nullptr);
+
+  // Removes itself as an observer of |pref_store_|.
+  shelf_controller_.reset();
 }
 
 ShelfModel* WmShell::shelf_model() {
   return shelf_controller_->model();
 }
 
 void WmShell::ShowContextMenu(const gfx::Point& location_in_screen,
                               ui::MenuSourceType source_type) {
   // Bail if there is no active user session or if the screen is locked.
   if (GetSessionStateDelegate()->NumberOfLoggedInUsers() < 1 ||
@@ skipping 128 matching lines @@
       system_tray_notifier_(base::MakeUnique<SystemTrayNotifier>()),
       wallpaper_delegate_(delegate_->CreateWallpaperDelegate()),
       window_cycle_controller_(base::MakeUnique<WindowCycleController>()),
       window_selector_controller_(
           base::MakeUnique<WindowSelectorController>()) {
 #if defined(OS_CHROMEOS)
   brightness_control_delegate_.reset(new system::BrightnessControllerChromeos);
   keyboard_brightness_control_delegate_.reset(new KeyboardBrightnessController);
   vpn_list_ = base::MakeUnique<VpnList>();
 #endif
+  delegate_->GetShellConnector()->ConnectToInterface(
+      catalog::mojom::kServiceName, &catalog_);
+  catalog_->GetEntriesProvidingCapability(
+      prefs::mojom::kServiceName,
+      base::Bind(&WmShell::OnGotCatalogEntries, base::Unretained(this)));
 }
 
 WmShell::~WmShell() {}
 
 WmRootWindowController* WmShell::GetPrimaryRootWindowController() {
   return GetPrimaryRootWindow()->GetRootWindowController();
 }
 
 WmWindow* WmShell::GetRootWindowForNewWindows() {
   if (scoped_root_window_for_new_windows_)
@@ skipping 123 matching lines @@
 
 void WmShell::DeleteToastManager() {
   toast_manager_.reset();
 }
 
 void WmShell::SetAcceleratorController(
     std::unique_ptr<AcceleratorController> accelerator_controller) {
   accelerator_controller_ = std::move(accelerator_controller);
 }
 
+void WmShell::OnGotCatalogEntries(
+    std::vector<catalog::mojom::EntryPtr> entries) {
+  // If there are zero entries, this is failing to connect to the service.

[dcheng, 2016/12/08 23:13:01]

I'm not sure what this comment means: if the connection failed, do we actually
still dispatch the callback? I wouldn't expect that, since Mojo has to make up
random values in that case.

[jonross, 2016/12/08 23:32:54]

The Catalog implementation does call this if there are 0 services found which
match the request we sent.

+  // TODO(jonross): if there are more than once service this needs to be updated
+  // to work with mulitple PreferencesManagers
+  DCHECK_EQ(1u, entries.size());
+  prefs::mojom::PreferencesManagerPtr pref_manager_ptr;
+  delegate_->GetShellConnector()->ConnectToInterface((*entries.begin())->name,
+                                                     &pref_manager_ptr);
+  pref_store_ = new preferences::PrefObserverStore(std::move(pref_manager_ptr));
+}
+
 }  // namespace ash