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+// 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 <string>
+
+#include "ash/ash_export.h"
+#include "ash/magnifier/magnifier_constants.h"
+#include "ash/shell.h"
+#include "base/callback.h"
+#include "base/strings/string16.h"
+
+namespace app_list {
+class AppListViewDelegate;
+}
+
+namespace aura {
+class RootWindow;
+class Window;
+namespace client {
+class UserActionClient;
+}
+}
+
+namespace ui {
+class MenuModel;
+}
+
+namespace views {
+class Widget;
+}
+
+namespace keyboard {
+class KeyboardControllerProxy;
+}
+
+namespace ash {
+
+class CapsLockDelegate;
+class LauncherDelegate;
+class LauncherModel;
+struct LauncherItem;
+class RootWindowHostFactory;
+class SessionStateDelegate;
+class SystemTrayDelegate;
+class UserWallpaperDelegate;
+
+enum UserMetricsAction {
+ UMA_ACCEL_KEYBOARD_BRIGHTNESS_DOWN_F6,
+ UMA_ACCEL_KEYBOARD_BRIGHTNESS_UP_F7,
+ UMA_ACCEL_LOCK_SCREEN_L,
+ UMA_ACCEL_LOCK_SCREEN_LOCK_BUTTON,
+ UMA_ACCEL_LOCK_SCREEN_POWER_BUTTON,
+ UMA_ACCEL_FULLSCREEN_F4,
+ UMA_ACCEL_MAXIMIZE_RESTORE_F4,
+ UMA_ACCEL_NEWTAB_T,
+ UMA_ACCEL_NEXTWINDOW_F5,
+ UMA_ACCEL_NEXTWINDOW_TAB,
+ UMA_ACCEL_OVERVIEW_F5,
+ UMA_ACCEL_PREVWINDOW_F5,
+ UMA_ACCEL_PREVWINDOW_TAB,
+ UMA_ACCEL_EXIT_FIRST_Q,
+ UMA_ACCEL_EXIT_SECOND_Q,
+ UMA_ACCEL_SEARCH_LWIN,
+ UMA_ACCEL_SHUT_DOWN_POWER_BUTTON,
+ UMA_CLOSE_THROUGH_CONTEXT_MENU,
+ UMA_LAUNCHER_CLICK_ON_APP,
+ UMA_LAUNCHER_CLICK_ON_APPLIST_BUTTON,
+ UMA_MINIMIZE_PER_KEY,
+ UMA_MOUSE_DOWN,
+ UMA_TOGGLE_MAXIMIZE_CAPTION_CLICK,
+ UMA_TOGGLE_MAXIMIZE_CAPTION_GESTURE,
+ UMA_TOUCHSCREEN_TAP_DOWN,
+ UMA_TRAY_HELP,
+ UMA_TRAY_LOCK_SCREEN,
+ UMA_TRAY_SHUT_DOWN,
+ UMA_WINDOW_APP_CLOSE_BUTTON_CLICK,
+ UMA_WINDOW_CLOSE_BUTTON_CLICK,
+ UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_EXIT_FULLSCREEN,
+ UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_MAXIMIZE,
+ UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_MINIMIZE,
+ UMA_WINDOW_MAXIMIZE_BUTTON_CLICK_RESTORE,
+ UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE,
+ UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE_LEFT,
+ UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE_RIGHT,
+ UMA_WINDOW_MAXIMIZE_BUTTON_MINIMIZE,
+ UMA_WINDOW_MAXIMIZE_BUTTON_RESTORE,
+ UMA_WINDOW_MAXIMIZE_BUTTON_SHOW_BUBBLE,
+};
+
+enum AccessibilityNotificationVisibility {
+ A11Y_NOTIFICATION_NONE,
+ A11Y_NOTIFICATION_SHOW,
+};
+
+// 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 we're running in forced app mode.
+ virtual bool IsRunningInForcedAppMode() const = 0;
+
+ // Called before processing |Shell::Init()| so that the delegate
+ // can perform tasks necessary before the shell is initialized.
+ virtual void PreInit() = 0;
+
+ // Shuts down the environment.
+ virtual void Shutdown() = 0;
+
+ // Invoked when the user uses Ctrl-Shift-Q to close chrome.
+ virtual void Exit() = 0;
+
+ // Invoked when the user uses Ctrl+T to open a new tab.
+ virtual void NewTab() = 0;
+
+ // Invoked when the user uses Ctrl-N or Ctrl-Shift-N to open a new window.
+ virtual void NewWindow(bool incognito) = 0;
+
+ // Invoked when the user uses Shift+F4 to toggle the window fullscreen state.
+ virtual void ToggleFullscreen() = 0;
+
+ // Invoked when the user uses F4 to toggle window maximized state.
+ virtual void ToggleMaximized() = 0;
+
+ // Invoked when an accelerator is used to open the file manager.
+ virtual void OpenFileManager(bool as_dialog) = 0;
+
+ // Invoked when the user opens Crosh.
+ virtual void OpenCrosh() = 0;
+
+ // Invoked when the user uses Shift+Ctrl+T to restore the closed tab.
+ virtual void RestoreTab() = 0;
+
+ // Shows the keyboard shortcut overlay.
+ virtual void ShowKeyboardOverlay() = 0;
+
+ // Create a shell-specific keyboard::KeyboardControllerProxy
+ virtual keyboard::KeyboardControllerProxy*
+ CreateKeyboardControllerProxy() = 0;
+
+ // Shows the task manager window.
+ virtual void ShowTaskManager() = 0;
+
+ // Get the current browser context. This will get us the current profile.
+ virtual content::BrowserContext* GetCurrentBrowserContext() = 0;
+
+ // Invoked to toggle spoken feedback for accessibility
+ virtual void ToggleSpokenFeedback(
+ AccessibilityNotificationVisibility notify) = 0;
+
+ // Returns true if spoken feedback is enabled.
+ virtual bool IsSpokenFeedbackEnabled() const = 0;
+
+ // Invoked to toggle high contrast for accessibility.
+ virtual void ToggleHighContrast() = 0;
+
+ // Returns true if high contrast mode is enabled.
+ virtual bool IsHighContrastEnabled() const = 0;
+
+ // Invoked to enable the screen magnifier.
+ virtual void SetMagnifierEnabled(bool enabled) = 0;
+
+ // Invoked to change the type of the screen magnifier.
+ virtual void SetMagnifierType(MagnifierType type) = 0;
+
+ // Returns if the screen magnifier is enabled or not.
+ virtual bool IsMagnifierEnabled() const = 0;
+
+ // Returns the current screen magnifier mode.
+ virtual MagnifierType GetMagnifierType() const = 0;
+
+ // Invoked to enable Large Cursor.
+ virtual void SetLargeCursorEnabled(bool enabled) = 0;
+
+ // Returns if Large Cursor is enabled or not.
+ virtual bool IsLargeCursorEnabled() const = 0;
+
+ // Returns true if the user want to show accesibility menu even when all the
+ // accessibility features are disabled.
+ virtual bool ShouldAlwaysShowAccessibilityMenu() const = 0;
+
+ // Cancel all current and queued speech immediately.
+ virtual void SilenceSpokenFeedback() const = 0;
+
+ // Invoked to create an AppListViewDelegate. Shell takes the ownership of
+ // the created delegate.
+ virtual app_list::AppListViewDelegate* CreateAppListViewDelegate() = 0;
+
+ // Creates a new LauncherDelegate. Shell takes ownership of the returned
+ // value.
+ virtual LauncherDelegate* CreateLauncherDelegate(
+ ash::LauncherModel* 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 caps lock delegate. Shell takes ownership of the delegate.
+ virtual CapsLockDelegate* CreateCapsLockDelegate() = 0;
+
+ // Creates a session state delegate. Shell takes ownership of the delegate.
+ virtual SessionStateDelegate* CreateSessionStateDelegate() = 0;
+
+ // Creates a user action client. Shell takes ownership of the object.
+ virtual aura::client::UserActionClient* CreateUserActionClient() = 0;
+
+ // Opens the feedback page for "Report Issue".
+ virtual void OpenFeedbackPage() = 0;
+
+ // Records that the user performed an action.
+ virtual void RecordUserMetricsAction(UserMetricsAction action) = 0;
+
+ // Handles the Next Track Media shortcut key.
+ virtual void HandleMediaNextTrack() = 0;
+
+ // Handles the Play/Pause Toggle Media shortcut key.
+ virtual void HandleMediaPlayPause() = 0;
+
+ // Handles the Previous Track Media shortcut key.
+ virtual void HandleMediaPrevTrack() = 0;
+
+ // Saves the zoom scale of the full screen magnifier.
+ virtual void SaveScreenMagnifierScale(double scale) = 0;
+
+ // Gets a saved value of the zoom scale of full screen magnifier. If a value
+ // is not saved, return a negative value.
+ virtual double GetSavedScreenMagnifierScale() = 0;
+
+ // Creates a menu model of the context for the |root_window|.
+ virtual ui::MenuModel* CreateContextMenu(aura::RootWindow* root_window) = 0;
+
+ // Creates a root window host factory. Shell takes ownership of the returned
+ // value.
+ virtual RootWindowHostFactory* CreateRootWindowHostFactory() = 0;
+
+ // Get the product name.
+ virtual base::string16 GetProductName() const = 0;
+};
+
+} // namespace ash
+
+#endif // ASH_SHELL_DELEGATE_H_