| // Copyright 2013 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/wm/overview/window_selector_controller.h" |
| |
| #include "ash/metrics/user_metrics_recorder.h" |
| #include "ash/root_window_controller.h" |
| #include "ash/session/session_state_delegate.h" |
| #include "ash/shell.h" |
| #include "ash/system/tray/system_tray_delegate.h" |
| #include "ash/wm/mru_window_tracker.h" |
| #include "ash/wm/overview/window_selector.h" |
| #include "ash/wm/window_state.h" |
| #include "ash/wm/window_util.h" |
| #include "base/metrics/histogram.h" |
| #include "ui/aura/window.h" |
| |
| namespace ash { |
| |
| WindowSelectorController::WindowSelectorController() { |
| } |
| |
| WindowSelectorController::~WindowSelectorController() { |
| } |
| |
| // static |
| bool WindowSelectorController::CanSelect() { |
| // Don't allow a window overview if the screen is locked or a modal dialog is |
| // open or running in kiosk app session. |
| return Shell::GetInstance()->session_state_delegate()-> |
| IsActiveUserSessionStarted() && |
| !Shell::GetInstance()->session_state_delegate()->IsScreenLocked() && |
| !Shell::GetInstance()->IsSystemModalWindowOpen() && |
| Shell::GetInstance()->system_tray_delegate()->GetUserLoginStatus() != |
| user::LOGGED_IN_KIOSK_APP; |
| } |
| |
| void WindowSelectorController::ToggleOverview() { |
| if (IsSelecting()) { |
| OnSelectionEnded(); |
| } else { |
| // Don't start overview if window selection is not allowed. |
| if (!CanSelect()) |
| return; |
| |
| std::vector<aura::Window*> windows = ash::Shell::GetInstance()-> |
| mru_window_tracker()->BuildMruWindowList(); |
| // Don't enter overview mode with no windows. |
| if (windows.empty()) |
| return; |
| |
| window_selector_.reset(new WindowSelector(windows, this)); |
| OnSelectionStarted(); |
| } |
| } |
| |
| bool WindowSelectorController::IsSelecting() { |
| return window_selector_.get() != NULL; |
| } |
| |
| // TODO(nsatragno): Make WindowSelectorController observe the activation of |
| // windows, so we can remove WindowSelectorDelegate. |
| void WindowSelectorController::OnSelectionEnded() { |
| window_selector_.reset(); |
| last_selection_time_ = base::Time::Now(); |
| } |
| |
| void WindowSelectorController::OnSelectionStarted() { |
| if (!last_selection_time_.is_null()) { |
| UMA_HISTOGRAM_LONG_TIMES( |
| "Ash.WindowSelector.TimeBetweenUse", |
| base::Time::Now() - last_selection_time_); |
| } |
| } |
| |
| } // namespace ash |