ui/wm/core/default_screen_position_client.cc

   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 "ui/wm/core/default_screen_position_client.h"
   6
   7 #include "ui/aura/window_tree_host.h"
   8 #include "ui/gfx/display.h"
   9 #include "ui/gfx/geometry/point_conversions.h"
  10 #include "ui/gfx/screen.h"
  11
  12 namespace wm {
  13
  14 DefaultScreenPositionClient::DefaultScreenPositionClient() {
  15 }
  16
  17 DefaultScreenPositionClient::~DefaultScreenPositionClient() {
  18 }
  19
  20 gfx::Point DefaultScreenPositionClient::GetOriginInScreen(
  21     const aura::Window* root_window) {
  22   gfx::Point origin_in_pixels = root_window->GetHost()->GetBounds().origin();
  23   aura::Window* window = const_cast<aura::Window*>(root_window);
  24   float scale = gfx::Screen::GetScreenFor(window)->
  25        GetDisplayNearestWindow(window).device_scale_factor();
  26   return gfx::ToFlooredPoint(gfx::ScalePoint(origin_in_pixels, 1.0f / scale));
  27 }
  28
  29 void DefaultScreenPositionClient::ConvertPointToScreen(
  30     const aura::Window* window,
  31     gfx::Point* point) {
  32   const aura::Window* root_window = window->GetRootWindow();
  33   aura::Window::ConvertPointToTarget(window, root_window, point);
  34   gfx::Point origin = GetOriginInScreen(root_window);
  35   point->Offset(origin.x(), origin.y());
  36 }
  37
  38 void DefaultScreenPositionClient::ConvertPointFromScreen(
  39     const aura::Window* window,
  40     gfx::Point* point) {
  41   const aura::Window* root_window = window->GetRootWindow();
  42   gfx::Point origin = GetOriginInScreen(root_window);
  43   point->Offset(-origin.x(), -origin.y());
  44   aura::Window::ConvertPointToTarget(root_window, window, point);
  45 }
  46
  47 void DefaultScreenPositionClient::ConvertHostPointToScreen(aura::Window* window,
  48                                                            gfx::Point* point) {
  49   aura::Window* root_window = window->GetRootWindow();
  50   ConvertPointToScreen(root_window, point);
  51 }
  52
  53 void DefaultScreenPositionClient::SetBounds(aura::Window* window,
  54                                             const gfx::Rect& bounds,
  55                                             const gfx::Display& display) {
  56   window->SetBounds(bounds);
  57 }
  58
  59 }  // namespace wm