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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ash/screen_util.h"
      6 
      7 #include "ash/display/display_controller.h"
      8 #include "ash/display/display_manager.h"
      9 #include "ash/root_window_controller.h"
     10 #include "ash/shelf/shelf_layout_manager.h"
     11 #include "ash/shelf/shelf_widget.h"
     12 #include "ash/shell.h"
     13 #include "ash/wm/coordinate_conversion.h"
     14 #include "base/logging.h"
     15 #include "ui/aura/client/screen_position_client.h"
     16 #include "ui/aura/window_event_dispatcher.h"
     17 #include "ui/gfx/display.h"
     18 #include "ui/gfx/screen.h"
     19 
     20 namespace ash {
     21 
     22 namespace {
     23 DisplayManager* GetDisplayManager() {
     24   return Shell::GetInstance()->display_manager();
     25 }
     26 }
     27 
     28 // static
     29 gfx::Display ScreenUtil::FindDisplayContainingPoint(const gfx::Point& point) {
     30   return GetDisplayManager()->FindDisplayContainingPoint(point);
     31 }
     32 
     33 // static
     34 gfx::Rect ScreenUtil::GetMaximizedWindowBoundsInParent(aura::Window* window) {
     35   if (GetRootWindowController(window->GetRootWindow())->shelf())
     36     return GetDisplayWorkAreaBoundsInParent(window);
     37   else
     38     return GetDisplayBoundsInParent(window);
     39 }
     40 
     41 // static
     42 gfx::Rect ScreenUtil::GetDisplayBoundsInParent(aura::Window* window) {
     43   return ConvertRectFromScreen(
     44       window->parent(),
     45       Shell::GetScreen()->GetDisplayNearestWindow(window).bounds());
     46 }
     47 
     48 // static
     49 gfx::Rect ScreenUtil::GetDisplayWorkAreaBoundsInParent(aura::Window* window) {
     50   return ConvertRectFromScreen(
     51       window->parent(),
     52       Shell::GetScreen()->GetDisplayNearestWindow(window).work_area());
     53 }
     54 
     55 // static
     56 gfx::Rect ScreenUtil::ConvertRectToScreen(aura::Window* window,
     57                                          const gfx::Rect& rect) {
     58   gfx::Point point = rect.origin();
     59   aura::client::GetScreenPositionClient(window->GetRootWindow())->
     60       ConvertPointToScreen(window, &point);
     61   return gfx::Rect(point, rect.size());
     62 }
     63 
     64 // static
     65 gfx::Rect ScreenUtil::ConvertRectFromScreen(aura::Window* window,
     66                                            const gfx::Rect& rect) {
     67   gfx::Point point = rect.origin();
     68   aura::client::GetScreenPositionClient(window->GetRootWindow())->
     69       ConvertPointFromScreen(window, &point);
     70   return gfx::Rect(point, rect.size());
     71 }
     72 
     73 // static
     74 const gfx::Display& ScreenUtil::GetSecondaryDisplay() {
     75   DisplayManager* display_manager = GetDisplayManager();
     76   CHECK_EQ(2U, display_manager->GetNumDisplays());
     77   return display_manager->GetDisplayAt(0).id() ==
     78       Shell::GetScreen()->GetPrimaryDisplay().id() ?
     79       display_manager->GetDisplayAt(1) : display_manager->GetDisplayAt(0);
     80 }
     81 
     82 // static
     83 const gfx::Display& ScreenUtil::GetDisplayForId(int64 display_id) {
     84   return GetDisplayManager()->GetDisplayForId(display_id);
     85 }
     86 
     87 }  // namespace ash
     88