Fix bug 114813: Resolution/screen configuration changes are missed if no panels exist during the change

BUG=114813
TEST=Manual test by closing all panels, changing resolution and opening a new panel


Review URL: http://codereview.chromium.org/9395059

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@125278 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 59 insertions, 0 deletions

diff --git a/chrome/browser/ui/panels/display_settings_provider.cc b/chrome/browser/ui/panels/display_settings_provider.cc
new file mode 100644
index 0000000..05c0dc5
--- /dev/null
+++ b/chrome/browser/ui/panels/display_settings_provider.cc
@@ -0,0 +1,59 @@
+// 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/ui/panels/display_settings_provider.h"
+
+#include "base/logging.h"
+#include "ui/gfx/screen.h"
+
+DisplaySettingsProvider::DisplaySettingsProvider(Observer* observer)
+    : observer_(observer) {
+  DCHECK(observer);
+}
+
+DisplaySettingsProvider::~DisplaySettingsProvider() {
+}
+
+gfx::Rect DisplaySettingsProvider::GetWorkArea() {
+#if defined(OS_MACOSX)
+  // On OSX, panels should be dropped all the way to the bottom edge of the
+  // screen (and overlap Dock).
+  gfx::Rect work_area = gfx::Screen::GetPrimaryMonitorBounds();
+#else
+  gfx::Rect work_area = gfx::Screen::GetPrimaryMonitorWorkArea();
+#endif
+
+  if (work_area_ != work_area) {
+    work_area_ = work_area;
+    OnWorkAreaChanged();
+  }
+
+  return work_area;
+}
+
+void DisplaySettingsProvider::OnWorkAreaChanged() {
+}
+
+bool DisplaySettingsProvider::IsAutoHidingDesktopBarEnabled(
+    DesktopBarAlignment alignment) {
+  return false;
+}
+
+int DisplaySettingsProvider::GetDesktopBarThickness(
+    DesktopBarAlignment alignment) const {
+  return 0;
+}
+
+DisplaySettingsProvider::DesktopBarVisibility
+DisplaySettingsProvider::GetDesktopBarVisibility(
+    DesktopBarAlignment alignment) const {
+  return DESKTOP_BAR_VISIBLE;
+}
+
+#if !defined(OS_WIN)
+// static
+DisplaySettingsProvider* DisplaySettingsProvider::Create(Observer* observer) {
+  return new DisplaySettingsProvider(observer);
+}
+#endif