blob: 418dd7162c1768bcd4b66a478039e4d6611b8bee [file] [log] [blame]
// 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::GetInstance()->AddShellObserver(this);
}
HighContrastController::~HighContrastController() {
Shell::GetInstance()->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