mash: Migrate ShellDelegate ownership and access to WmShell.

ash/shell_delegate.h

-// Copyright (c) 2012 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.
-
-#ifndef ASH_SHELL_DELEGATE_H_
-#define ASH_SHELL_DELEGATE_H_
-
-#include <memory>
-#include <string>
-
-#include "ash/ash_export.h"
-#include "base/callback.h"
-#include "base/strings/string16.h"
-
-class GURL;
-
-namespace app_list {
-class AppListPresenter;
-class AppListViewDelegate;
-}
-
-namespace gfx {
-class Image;
-}
-
-namespace keyboard {
-class KeyboardUI;
-}
-
-namespace ui {
-class MenuModel;
-}
-
-namespace views {
-class Widget;
-}
-
-namespace ash {
-
-class AccessibilityDelegate;
-class GPUSupport;
-class MediaDelegate;
-class NewWindowDelegate;
-class PointerWatcherDelegate;
-class SessionStateDelegate;
-class ShelfDelegate;
-class ShelfModel;
-class SystemTrayDelegate;
-class UserWallpaperDelegate;
-struct ShelfItem;
-class WmShelf;
-class WmWindow;
-
-class ASH_EXPORT VirtualKeyboardStateObserver {
- public:
-  // Called when keyboard is activated/deactivated.
-  virtual void OnVirtualKeyboardStateChanged(bool activated) {}
-
- protected:
-  virtual ~VirtualKeyboardStateObserver() {}
-};
-
-// Delegate of the Shell.
-class ASH_EXPORT ShellDelegate {
- public:
-  // The Shell owns the delegate.
-  virtual ~ShellDelegate() {}
-
-  // Returns true if this is the first time that the shell has been run after
-  // the system has booted.  false is returned after the shell has been
-  // restarted, typically due to logging in as a guest or logging out.
-  virtual bool IsFirstRunAfterBoot() const = 0;
-
-  // Returns true if multi-profiles feature is enabled.
-  virtual bool IsMultiProfilesEnabled() const = 0;
-
-  // Returns true if incognito mode is allowed for the user.
-  // Incognito windows are restricted for supervised users.
-  virtual bool IsIncognitoAllowed() const = 0;
-
-  // Returns true if we're running in forced app mode.
-  virtual bool IsRunningInForcedAppMode() const = 0;
-
-  // Returns true if |window| can be shown for the delegate's concept of current
-  // user.
-  virtual bool CanShowWindowForUser(WmWindow* window) const = 0;
-
-  // Returns true if the first window shown on first run should be
-  // unconditionally maximized, overriding the heuristic that normally chooses
-  // the window size.
-  virtual bool IsForceMaximizeOnFirstRun() const = 0;
-
-  // Called before processing |Shell::Init()| so that the delegate
-  // can perform tasks necessary before the shell is initialized.
-  virtual void PreInit() = 0;
-
-  // Called at the beginninig of Shell destructor so that
-  // delegate can use Shell instance to perform cleanup tasks.
-  virtual void PreShutdown() = 0;
-
-  // Invoked when the user uses Ctrl-Shift-Q to close chrome.
-  virtual void Exit() = 0;
-
-  // Create a shell-specific keyboard::KeyboardUI
-  virtual keyboard::KeyboardUI* CreateKeyboardUI() = 0;
-
-  // Called when virtual keyboard has been activated/deactivated.
-  virtual void VirtualKeyboardActivated(bool activated) = 0;
-
-  // Adds or removes virtual keyboard state observer.
-  virtual void AddVirtualKeyboardStateObserver(
-      VirtualKeyboardStateObserver* observer) = 0;
-  virtual void RemoveVirtualKeyboardStateObserver(
-      VirtualKeyboardStateObserver* observer) = 0;
-
-  // Opens the |url| in a new browser tab.
-  virtual void OpenUrl(const GURL& url) = 0;
-
-  // Get the AppListPresenter. Ownership stays with Chrome.
-  virtual app_list::AppListPresenter* GetAppListPresenter() = 0;
-
-  // Creates a new ShelfDelegate. Shell takes ownership of the returned
-  // value.
-  virtual ShelfDelegate* CreateShelfDelegate(ShelfModel* model) = 0;
-
-  // Creates a system-tray delegate. Shell takes ownership of the delegate.
-  virtual SystemTrayDelegate* CreateSystemTrayDelegate() = 0;
-
-  // Creates a user wallpaper delegate. Shell takes ownership of the delegate.
-  virtual UserWallpaperDelegate* CreateUserWallpaperDelegate() = 0;
-
-  // Creates a session state delegate. Shell takes ownership of the delegate.
-  virtual SessionStateDelegate* CreateSessionStateDelegate() = 0;
-
-  // Creates a accessibility delegate. Shell takes ownership of the delegate.
-  virtual AccessibilityDelegate* CreateAccessibilityDelegate() = 0;
-
-  // Creates an application delegate. Shell takes ownership of the delegate.
-  virtual NewWindowDelegate* CreateNewWindowDelegate() = 0;
-
-  // Creates a media delegate. Shell takes ownership of the delegate.
-  virtual MediaDelegate* CreateMediaDelegate() = 0;
-
-  virtual std::unique_ptr<PointerWatcherDelegate>
-  CreatePointerWatcherDelegate() = 0;
-
-  // Creates a menu model for the |wm_shelf| and optional shelf |item|.
-  // If |item| is null, this creates a context menu for the desktop or shelf.
-  virtual ui::MenuModel* CreateContextMenu(WmShelf* wm_shelf,
-                                           const ShelfItem* item) = 0;
-
-  // Creates a GPU support object. Shell takes ownership of the object.
-  virtual GPUSupport* CreateGPUSupport() = 0;
-
-  // Get the product name.
-  virtual base::string16 GetProductName() const = 0;
-
-  virtual void OpenKeyboardShortcutHelpPage() const {}
-
-  virtual gfx::Image GetDeprecatedAcceleratorImage() const = 0;
-
-  // Toggles the status of the touchpad / touchscreen on or off.
-  virtual void ToggleTouchpad() {}
-  virtual void ToggleTouchscreen() {}
-};
-
-}  // namespace ash
-
-#endif  // ASH_SHELL_DELEGATE_H_