ui/views/widget/monitor_win.cc

   1 // Copyright (c) 2012 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/views/widget/monitor_win.h"
   6
   7 #include <shellapi.h>
   8
   9 #include "base/logging.h"
  10 #include "base/win/win_util.h"
  11 #include "ui/gfx/rect.h"
  12
  13 namespace views {
  14
  15 gfx::Rect GetMonitorBoundsForRect(const gfx::Rect& rect) {
  16   RECT p_rect = rect.ToRECT();
  17   HMONITOR monitor = MonitorFromRect(&p_rect, MONITOR_DEFAULTTONEAREST);
  18   if (monitor) {
  19     MONITORINFO mi = {0};
  20     mi.cbSize = sizeof(mi);
  21     base::win::GetMonitorInfoWrapper(monitor, &mi);
  22     return gfx::Rect(mi.rcWork);
  23   }
  24   NOTREACHED();
  25   return gfx::Rect();
  26 }
  27
  28 HWND GetTopmostAutoHideTaskbarForEdge(UINT edge, HMONITOR monitor) {
  29   // NOTE: this may be invoked on a background thread.
  30   APPBARDATA taskbar_data =  { sizeof(APPBARDATA), NULL, 0, edge };
  31   HWND taskbar = reinterpret_cast<HWND>(SHAppBarMessage(ABM_GETAUTOHIDEBAR,
  32                                                         &taskbar_data));
  33   return (::IsWindow(taskbar) && (monitor != NULL) &&
  34          (MonitorFromWindow(taskbar, MONITOR_DEFAULTTONULL) == monitor) &&
  35          (GetWindowLong(taskbar, GWL_EXSTYLE) & WS_EX_TOPMOST)) ?
  36       taskbar : NULL;
  37 }
  38
  39 }  // namespace views