[Cleanup] Screen cleanup

ash/screen_util.cc

Index: ash/screen_util.cc
diff --git a/ash/screen_util.cc b/ash/screen_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2e7bcc507a2202fae7b7b7d5461a54e2c7742a53
--- /dev/null
+++ b/ash/screen_util.cc
@@ -0,0 +1,87 @@
+// 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/screen_util.h"
+
+#include "ash/display/display_controller.h"
+#include "ash/display/display_manager.h"
+#include "ash/root_window_controller.h"
+#include "ash/shelf/shelf_layout_manager.h"
+#include "ash/shelf/shelf_widget.h"
+#include "ash/shell.h"
+#include "ash/wm/coordinate_conversion.h"
+#include "base/logging.h"
+#include "ui/aura/client/screen_position_client.h"
+#include "ui/aura/root_window.h"
+#include "ui/gfx/display.h"
+#include "ui/gfx/screen.h"
+
+namespace ash {
+
+namespace {
+internal::DisplayManager* GetDisplayManager() {
+  return Shell::GetInstance()->display_manager();
+}
+}
+
+// static
+gfx::Display ScreenUtil::FindDisplayContainingPoint(const gfx::Point& point) {
+  return GetDisplayManager()->FindDisplayContainingPoint(point);
+}
+
+// static
+gfx::Rect ScreenUtil::GetMaximizedWindowBoundsInParent(aura::Window* window) {
+  if (internal::GetRootWindowController(window->GetRootWindow())->shelf())
+    return GetDisplayWorkAreaBoundsInParent(window);
+  else
+    return GetDisplayBoundsInParent(window);
+}
+
+// static
+gfx::Rect ScreenUtil::GetDisplayBoundsInParent(aura::Window* window) {
+  return ConvertRectFromScreen(
+      window->parent(),
+      Shell::GetScreen()->GetDisplayNearestWindow(window).bounds());
+}
+
+// static
+gfx::Rect ScreenUtil::GetDisplayWorkAreaBoundsInParent(aura::Window* window) {
+  return ConvertRectFromScreen(
+      window->parent(),
+      Shell::GetScreen()->GetDisplayNearestWindow(window).work_area());
+}
+
+// static
+gfx::Rect ScreenUtil::ConvertRectToScreen(aura::Window* window,
+                                         const gfx::Rect& rect) {
+  gfx::Point point = rect.origin();
+  aura::client::GetScreenPositionClient(window->GetRootWindow())->
+      ConvertPointToScreen(window, &point);
+  return gfx::Rect(point, rect.size());
+}
+
+// static
+gfx::Rect ScreenUtil::ConvertRectFromScreen(aura::Window* window,
+                                           const gfx::Rect& rect) {
+  gfx::Point point = rect.origin();
+  aura::client::GetScreenPositionClient(window->GetRootWindow())->
+      ConvertPointFromScreen(window, &point);
+  return gfx::Rect(point, rect.size());
+}
+
+// static
+const gfx::Display& ScreenUtil::GetSecondaryDisplay() {
+  internal::DisplayManager* display_manager = GetDisplayManager();
+  CHECK_EQ(2U, display_manager->GetNumDisplays());
+  return display_manager->GetDisplayAt(0).id() ==
+      Shell::GetScreen()->GetPrimaryDisplay().id() ?
+      display_manager->GetDisplayAt(1) : display_manager->GetDisplayAt(0);
+}
+
+// static
+const gfx::Display& ScreenUtil::GetDisplayForId(int64 display_id) {
+  return GetDisplayManager()->GetDisplayForId(display_id);
+}
+
+}  // namespace ash