| // 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/root_window_controller.h" |
| #include "ash/session_state_delegate.h" |
| #include "ash/shell.h" |
| #include "ash/shell_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. |
| return !Shell::GetInstance()->session_state_delegate()->IsScreenLocked() && |
| !Shell::GetInstance()->IsSystemModalWindowOpen(); |
| } |
| |
| void WindowSelectorController::ToggleOverview() { |
| if (IsSelecting()) { |
| OnSelectionCanceled(); |
| } else { |
| 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, WindowSelector::OVERVIEW, this)); |
| OnSelectionStarted(); |
| } |
| } |
| |
| void WindowSelectorController::HandleCycleWindow( |
| WindowSelector::Direction direction) { |
| if (!CanSelect()) |
| return; |
| |
| if (!IsSelecting()) { |
| std::vector<aura::Window*> windows = ash::Shell::GetInstance()-> |
| mru_window_tracker()->BuildMruWindowList(); |
| // Don't cycle with no windows. |
| if (windows.empty()) |
| return; |
| |
| window_selector_.reset( |
| new WindowSelector(windows, WindowSelector::CYCLE, this)); |
| OnSelectionStarted(); |
| } |
| window_selector_->Step(direction); |
| } |
| |
| bool WindowSelectorController::IsSelecting() { |
| return window_selector_.get() != NULL; |
| } |
| |
| void WindowSelectorController::OnWindowSelected(aura::Window* window) { |
| window_selector_.reset(); |
| wm::ActivateWindow(window); |
| last_selection_time_ = base::Time::Now(); |
| Shell::GetInstance()->mru_window_tracker()->SetIgnoreActivations(false); |
| } |
| |
| void WindowSelectorController::OnSelectionCanceled() { |
| window_selector_.reset(); |
| last_selection_time_ = base::Time::Now(); |
| Shell::GetInstance()->mru_window_tracker()->SetIgnoreActivations(false); |
| } |
| |
| void WindowSelectorController::OnSelectionStarted() { |
| Shell::GetInstance()->mru_window_tracker()->SetIgnoreActivations(true); |
| Shell* shell = Shell::GetInstance(); |
| shell->delegate()->RecordUserMetricsAction(UMA_WINDOW_SELECTION); |
| if (!last_selection_time_.is_null()) { |
| UMA_HISTOGRAM_LONG_TIMES( |
| "Ash.WindowSelector.TimeBetweenUse", |
| base::Time::Now() - last_selection_time_); |
| } |
| } |
| |
| } // namespace ash |