ash/mash: Add a mus-client that sets up ash to provide the system ui for mash.

ash/mus/sysui/shell_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/sysui/shell_delegate_mus.h"
+
+#include "ash/default_accessibility_delegate.h"
+#include "ash/default_user_wallpaper_delegate.h"
+#include "ash/session/session_state_delegate.h"
+#include "ash/system/tray/default_system_tray_delegate.h"
+#include "base/strings/string16.h"
+#include "components/user_manager/user_info_impl.h"
+#include "ui/gfx/image/image.h"
+
+namespace ash {
+namespace sysui {
+
+namespace {
+
+class SessionStateDelegateStub : public SessionStateDelegate {
+ public:
+  SessionStateDelegateStub()
+      : screen_locked_(false), user_info_(new user_manager::UserInfoImpl()) {}
+
+  ~SessionStateDelegateStub() override {}
+
+  // SessionStateDelegate:
+  int GetMaximumNumberOfLoggedInUsers() const override { return 3; }
+  int NumberOfLoggedInUsers() const override {
+    // ash_shell has 2 users.
+    return 2;
+  }
+  bool IsActiveUserSessionStarted() const override { return true; }
+  bool CanLockScreen() const override { return true; }
+  bool IsScreenLocked() const override { return screen_locked_; }
+  bool ShouldLockScreenBeforeSuspending() const override { return false; }
+  void LockScreen() override {
+    screen_locked_ = true;
+    NOTIMPLEMENTED();
+  }
+  void UnlockScreen() override {
+    NOTIMPLEMENTED();
+    screen_locked_ = false;
+  }
+  bool IsUserSessionBlocked() const override { return false; }
+  SessionState GetSessionState() const override { return SESSION_STATE_ACTIVE; }
+  const user_manager::UserInfo* GetUserInfo(UserIndex index) const override {
+    return user_info_.get();
+  }
+  bool ShouldShowAvatar(aura::Window* window) const override {
+    return !user_info_->GetImage().isNull();
+  }
+  gfx::ImageSkia GetAvatarImageForWindow(aura::Window* window) const override {
+    return gfx::ImageSkia();
+  }
+  void SwitchActiveUser(const AccountId& account_id) override {}
+  void CycleActiveUser(CycleUser cycle_user) override {}
+  bool IsMultiProfileAllowedByPrimaryUserPolicy() const override {
+    return true;
+  }
+  void AddSessionStateObserver(ash::SessionStateObserver* observer) override {}
+  void RemoveSessionStateObserver(
+      ash::SessionStateObserver* observer) override {}
+
+ private:
+  bool screen_locked_;
+
+  // A pseudo user info.
+  scoped_ptr<user_manager::UserInfo> user_info_;
+
+  DISALLOW_COPY_AND_ASSIGN(SessionStateDelegateStub);
+};
+
+}  // namespace
+
+ShellDelegateMus::ShellDelegateMus() {}
+ShellDelegateMus::~ShellDelegateMus() {}
+
+bool ShellDelegateMus::IsFirstRunAfterBoot() const {
+  return false;

[sky, 2016/02/08 17:42:15]

Is it worth NOTIMPLEMENTEDs for all of these?

[sadrul, 2016/02/08 18:33:24]

Done.

+}
+
+bool ShellDelegateMus::IsIncognitoAllowed() const {
+  return false;
+}
+
+bool ShellDelegateMus::IsMultiProfilesEnabled() const {
+  return false;
+}
+
+bool ShellDelegateMus::IsRunningInForcedAppMode() const {
+  return false;
+}
+
+bool ShellDelegateMus::CanShowWindowForUser(aura::Window* window) const {
+  return true;
+}
+
+bool ShellDelegateMus::IsForceMaximizeOnFirstRun() const {
+  return false;
+}
+
+void ShellDelegateMus::PreInit() {}
+
+void ShellDelegateMus::PreShutdown() {}
+
+void ShellDelegateMus::Exit() {}
+
+keyboard::KeyboardUI* ShellDelegateMus::CreateKeyboardUI() {
+  return nullptr;
+}
+
+void ShellDelegateMus::VirtualKeyboardActivated(bool activated) {}
+
+void ShellDelegateMus::AddVirtualKeyboardStateObserver(
+    VirtualKeyboardStateObserver* observer) {}
+
+void ShellDelegateMus::RemoveVirtualKeyboardStateObserver(
+    VirtualKeyboardStateObserver* observer) {}
+
+app_list::AppListViewDelegate* ShellDelegateMus::GetAppListViewDelegate() {
+  return nullptr;
+}
+
+ShelfDelegate* ShellDelegateMus::CreateShelfDelegate(ShelfModel* model) {
+  return nullptr;
+}
+
+ash::SystemTrayDelegate* ShellDelegateMus::CreateSystemTrayDelegate() {
+  return new DefaultSystemTrayDelegate;
+}
+
+ash::UserWallpaperDelegate* ShellDelegateMus::CreateUserWallpaperDelegate() {
+  return new DefaultUserWallpaperDelegate();
+}
+
+ash::SessionStateDelegate* ShellDelegateMus::CreateSessionStateDelegate() {
+  return new SessionStateDelegateStub;
+}
+
+ash::AccessibilityDelegate* ShellDelegateMus::CreateAccessibilityDelegate() {
+  return new DefaultAccessibilityDelegate;
+}
+
+ash::NewWindowDelegate* ShellDelegateMus::CreateNewWindowDelegate() {
+  return nullptr;
+}
+
+ash::MediaDelegate* ShellDelegateMus::CreateMediaDelegate() {
+  return nullptr;
+}
+
+ui::MenuModel* ShellDelegateMus::CreateContextMenu(
+    aura::Window* root_window,
+    ash::ShelfItemDelegate* item_delegate,
+    ash::ShelfItem* item) {
+  return nullptr;
+}
+
+GPUSupport* ShellDelegateMus::CreateGPUSupport() {
+  return nullptr;
+}
+
+base::string16 ShellDelegateMus::GetProductName() const {
+  return base::string16();
+}
+
+gfx::Image ShellDelegateMus::GetDeprecatedAcceleratorImage() const {
+  return gfx::Image();
+}
+
+}  // namespace sysui
+}  // namespace ash