Implements fullscreen_aura.cc for Linux-Aura.

BUG=344630
R=erg@chromium.org

Review URL: https://codereview.chromium.org/175573002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@253308 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 25 insertions, 0 deletions

diff --git a/chrome/browser/fullscreen_aurax11.cc b/chrome/browser/fullscreen_aurax11.cc
new file mode 100644
index 0000000..b186c00
--- /dev/null
+++ b/chrome/browser/fullscreen_aurax11.cc
@@ -0,0 +1,25 @@
+// Copyright 2014 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/fullscreen.h"
+
+#include <vector>
+
+#include "ui/gfx/native_widget_types.h"
+#include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
+#include "ui/views/widget/widget.h"
+
+bool IsFullScreenMode() {
+  std::vector<aura::Window*> all_windows =
+      views::DesktopWindowTreeHostX11::GetAllOpenWindows();
+  // Only the topmost window is checked. This works fine in the most cases, but
+  // it may return false when there are multiple displays and one display has
+  // a fullscreen window but others don't. See: crbug.com/345484
+  if (all_windows.empty())
+    return false;
+
+  views::Widget* widget =
+      views::Widget::GetWidgetForNativeWindow(all_windows[0]);
+  return widget && widget->IsFullscreen();
+}