// 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