[Cleanup] Screen cleanup

ash/screen_ash.cc

-// 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_ash.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/env.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();
-}
-
-DisplayController* GetDisplayController() {
-  return Shell::GetInstance()->display_controller();
-}
-}  // namespace
-
-ScreenAsh::ScreenAsh() {
-}
-
-ScreenAsh::~ScreenAsh() {
-}
-
-// static
-gfx::Display ScreenAsh::FindDisplayContainingPoint(const gfx::Point& point) {
-  return GetDisplayManager()->FindDisplayContainingPoint(point);
-}
-
-// static
-gfx::Rect ScreenAsh::GetMaximizedWindowBoundsInParent(aura::Window* window) {
-  if (internal::GetRootWindowController(window->GetRootWindow())->shelf())
-    return GetDisplayWorkAreaBoundsInParent(window);
-  else
-    return GetDisplayBoundsInParent(window);
-}
-
-// static
-gfx::Rect ScreenAsh::GetDisplayBoundsInParent(aura::Window* window) {
-  return ConvertRectFromScreen(
-      window->parent(),
-      Shell::GetScreen()->GetDisplayNearestWindow(window).bounds());
-}
-
-// static
-gfx::Rect ScreenAsh::GetDisplayWorkAreaBoundsInParent(aura::Window* window) {
-  return ConvertRectFromScreen(
-      window->parent(),
-      Shell::GetScreen()->GetDisplayNearestWindow(window).work_area());
-}
-
-// static
-gfx::Rect ScreenAsh::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 ScreenAsh::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& ScreenAsh::GetSecondaryDisplay() {
-  internal::DisplayManager* display_manager = GetDisplayManager();
-  CHECK_EQ(2U, display_manager->GetNumDisplays());
-  return display_manager->GetDisplayAt(0).id() ==
-      DisplayController::GetPrimaryDisplay().id() ?
-      display_manager->GetDisplayAt(1) : display_manager->GetDisplayAt(0);
-}
-
-// static
-const gfx::Display& ScreenAsh::GetDisplayForId(int64 display_id) {
-  return GetDisplayManager()->GetDisplayForId(display_id);
-}
-
-void ScreenAsh::NotifyBoundsChanged(const gfx::Display& display) {
-  FOR_EACH_OBSERVER(gfx::DisplayObserver, observers_,
-                    OnDisplayBoundsChanged(display));
-}
-
-void ScreenAsh::NotifyDisplayAdded(const gfx::Display& display) {
-  FOR_EACH_OBSERVER(gfx::DisplayObserver, observers_, OnDisplayAdded(display));
-}
-
-void ScreenAsh::NotifyDisplayRemoved(const gfx::Display& display) {
-  FOR_EACH_OBSERVER(
-      gfx::DisplayObserver, observers_, OnDisplayRemoved(display));
-}
-
-bool ScreenAsh::IsDIPEnabled() {
-  return true;
-}
-
-gfx::Point ScreenAsh::GetCursorScreenPoint() {
-  return aura::Env::GetInstance()->last_mouse_location();
-}
-
-gfx::NativeWindow ScreenAsh::GetWindowUnderCursor() {
-  return GetWindowAtScreenPoint(Shell::GetScreen()->GetCursorScreenPoint());
-}
-
-gfx::NativeWindow ScreenAsh::GetWindowAtScreenPoint(const gfx::Point& point) {
-  return wm::GetRootWindowAt(point)->GetTopWindowContainingPoint(point);
-}
-
-int ScreenAsh::GetNumDisplays() const {
-  return DisplayController::GetNumDisplays();
-}
-
-std::vector<gfx::Display> ScreenAsh::GetAllDisplays() const {
-  if (!Shell::HasInstance())
-    return std::vector<gfx::Display>(1, GetPrimaryDisplay());
-  return GetDisplayManager()->displays();
-}
-
-gfx::Display ScreenAsh::GetDisplayNearestWindow(gfx::NativeView window) const {
-  if (!Shell::HasInstance())
-    return GetPrimaryDisplay();
-  return GetDisplayController()->GetDisplayNearestWindow(window);
-}
-
-gfx::Display ScreenAsh::GetDisplayNearestPoint(const gfx::Point& point) const {
-  if (!Shell::HasInstance())
-    return GetPrimaryDisplay();
-  return GetDisplayController()->GetDisplayNearestPoint(point);
-}
-
-gfx::Display ScreenAsh::GetDisplayMatching(const gfx::Rect& match_rect) const {
-  if (!Shell::HasInstance())
-    return GetPrimaryDisplay();
-  return GetDisplayController()->GetDisplayMatching(match_rect);
-}
-
-gfx::Display ScreenAsh::GetPrimaryDisplay() const {
-  return DisplayController::GetPrimaryDisplay();
-}
-
-void ScreenAsh::AddObserver(gfx::DisplayObserver* observer) {
-  observers_.AddObserver(observer);
-}
-
-void ScreenAsh::RemoveObserver(gfx::DisplayObserver* observer) {
-  observers_.RemoveObserver(observer);
-}
-
-}  // namespace ash