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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.
- #include "ash/high_contrast/high_contrast_controller.h"
- #include "ash/shell.h"
- #include "ui/aura/window_event_dispatcher.h"
- #include "ui/compositor/layer.h"
- namespace ash {
- HighContrastController::HighContrastController() : enabled_(false) {
- Shell::Get()->AddShellObserver(this);
- }
- HighContrastController::~HighContrastController() {
- Shell::Get()->RemoveShellObserver(this);
- }
- void HighContrastController::SetEnabled(bool enabled) {
- enabled_ = enabled;
- // Update all active displays.
- aura::Window::Windows root_window_list = Shell::GetAllRootWindows();
- for (aura::Window::Windows::iterator it = root_window_list.begin();
- it != root_window_list.end(); it++) {
- UpdateDisplay(*it);
- }
- }
- void HighContrastController::UpdateDisplay(aura::Window* root_window) {
- root_window->layer()->SetLayerInverted(enabled_);
- }
- void HighContrastController::OnRootWindowAdded(aura::Window* root_window) {
- UpdateDisplay(root_window);
- }
- } // namespace ash
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