blob: 589ec2e84efa12332524709209a8e1e862da3e0f [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 "chrome/browser/screensaver_window_finder_x11.h"
#include "base/basictypes.h"
#include "ui/base/x/x11_util.h"
#include "ui/gfx/x/x11_error_tracker.h"
: exists_(false) {
bool ScreensaverWindowFinder::ScreensaverWindowExists() {
gfx::X11ErrorTracker err_tracker;
ScreensaverWindowFinder finder;
return finder.exists_ && !err_tracker.FoundNewError();
bool ScreensaverWindowFinder::ShouldStopIterating(XID window) {
if (!ui::IsWindowVisible(window) || !IsScreensaverWindow(window))
return false;
exists_ = true;
return true;
bool ScreensaverWindowFinder::IsScreensaverWindow(XID window) const {
// It should occupy the full screen.
if (!ui::IsX11WindowFullScreen(window))
return false;
// For xscreensaver, the window should have _SCREENSAVER_VERSION property.
if (ui::PropertyExists(window, "_SCREENSAVER_VERSION"))
return true;
// For all others, like gnome-screensaver, the window's WM_CLASS property
// should contain "screensaver".
std::string value;
if (!ui::GetStringProperty(window, "WM_CLASS", &value))
return false;
return value.find("screensaver") != std::string::npos;