chrome/browser/ui/views/tabs/window_finder_x11.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 "chrome/browser/ui/views/tabs/window_finder.h"
   6
   7 #include "ui/gfx/geometry/point_conversions.h"
   8 #include "ui/gfx/screen.h"
   9 #include "ui/views/widget/desktop_aura/x11_topmost_window_finder.h"
  10
  11 namespace {
  12
  13 float GetDeviceScaleFactor() {
  14   gfx::Display display = gfx::Screen::GetNativeScreen()->GetPrimaryDisplay();
  15   return display.device_scale_factor();
  16 }
  17
  18 gfx::Point DIPToPixelPoint(const gfx::Point& dip_point) {
  19   return ToFlooredPoint(gfx::ScalePoint(dip_point, GetDeviceScaleFactor()));
  20 }
  21
  22 }  // anonymous namespace
  23
  24 #if defined(USE_ASH)
  25 gfx::NativeWindow GetLocalProcessWindowAtPointAsh(
  26     const gfx::Point& screen_point,
  27     const std::set<gfx::NativeWindow>& ignore);
  28 #endif
  29
  30 gfx::NativeWindow GetLocalProcessWindowAtPoint(
  31     chrome::HostDesktopType host_desktop_type,
  32     const gfx::Point& screen_point,
  33     const std::set<gfx::NativeWindow>& ignore) {
  34 #if defined(USE_ASH)
  35   if (host_desktop_type == chrome::HOST_DESKTOP_TYPE_ASH)
  36     return GetLocalProcessWindowAtPointAsh(screen_point, ignore);
  37 #endif
  38
  39   // The X11 server is the canonical state of what the window stacking order
  40   // is.
  41   views::X11TopmostWindowFinder finder;
  42   return finder.FindLocalProcessWindowAt(DIPToPixelPoint(screen_point), ignore);
  43 }