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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 <vector>
#include "ash/ash_export.h"
#include "ash/shell.h"
#include "base/callback.h"
#include "base/string16.h"
#include "base/time.h"
namespace app_list {
class AppListViewDelegate;
}
namespace aura {
class Window;
namespace client {
class UserActionClient;
}
}
namespace views {
class Widget;
}
namespace ash {
class CapsLockDelegate;
class LauncherDelegate;
class LauncherModel;
struct LauncherItem;
class SystemTray;
class SystemTrayDelegate;
class UserWallpaperDelegate;
enum UserMetricsAction {
UMA_ACCEL_NEWTAB_T,
UMA_ACCEL_NEXTWINDOW_F5,
UMA_ACCEL_NEXTWINDOW_TAB,
UMA_ACCEL_PREVWINDOW_F5,
UMA_ACCEL_PREVWINDOW_TAB,
UMA_ACCEL_SEARCH_LWIN,
UMA_LAUNCHER_CLICK_ON_APP,
UMA_LAUNCHER_CLICK_ON_APPLIST_BUTTON,
UMA_MOUSE_DOWN,
UMA_TOUCHSCREEN_TAP_DOWN,
};
// Delegate of the Shell.
class ASH_EXPORT ShellDelegate {
public:
// The Shell owns the delegate.
virtual ~ShellDelegate() {}
// Returns true if user has logged in.
virtual bool IsUserLoggedIn() = 0;
// Returns true if we're logged in and browser has been started
virtual bool IsSessionStarted() = 0;
// Invoked when a user locks the screen.
virtual void LockScreen() = 0;
// Unlock the screen. Currently used only for tests.
virtual void UnlockScreen() = 0;
// Returns true if the screen is currently locked.
virtual bool IsScreenLocked() const = 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 Ctrl-M or Ctrl-O to open file manager.
virtual void OpenFileManager(bool as_dialog) = 0;
// Invoked when the user opens Crosh.
virtual void OpenCrosh() = 0;
// Invoked when the user needs to set up mobile networking.
virtual void OpenMobileSetup(const std::string& service_path) = 0;
// Invoked when the user uses Shift+Ctrl+T to restore the closed tab.
virtual void RestoreTab() = 0;
// Moves keyboard focus to the next pane. Returns false if no browser window
// is created.
virtual bool RotatePaneFocus(Shell::Direction direction) = 0;
// Shows the keyboard shortcut overlay.
virtual void ShowKeyboardOverlay() = 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 when the user presses a shortcut to toggle spoken feedback
// for accessibility.
virtual void ToggleSpokenFeedback() = 0;
// Returns true if spoken feedback is enabled.
virtual bool IsSpokenFeedbackEnabled() 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(SystemTray* tray) = 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 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;
// Produces l10n-ed text of remaining time, e.g.: "13 mins left" or
// "13 Minuten übrig".
// Used, for example, to display the remaining battery life.
virtual string16 GetTimeRemainingString(base::TimeDelta delta) = 0;
};
} // namespace ash
#endif // ASH_SHELL_DELEGATE_H_
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