| // Copyright 2013 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 "chrome/browser/extensions/api/system_display/display_info_provider.h" |
| |
| #include <windows.h> |
| |
| #include "base/hash.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/win/win_util.h" |
| #include "ui/gfx/size.h" |
| #include "ui/gfx/win/dpi.h" |
| |
| namespace extensions { |
| |
| using api::system_display::DisplayUnitInfo; |
| |
| namespace { |
| |
| BOOL CALLBACK EnumMonitorCallback(HMONITOR monitor, |
| HDC hdc, |
| LPRECT rect, |
| LPARAM data) { |
| DisplayInfo* all_displays = reinterpret_cast<DisplayInfo*>(data); |
| DCHECK(all_displays); |
| |
| linked_ptr<DisplayUnitInfo> unit(new DisplayUnitInfo); |
| |
| MONITORINFOEX monitor_info; |
| ZeroMemory(&monitor_info, sizeof(MONITORINFOEX)); |
| monitor_info.cbSize = sizeof(monitor_info); |
| base::win::GetMonitorInfoWrapper(monitor, &monitor_info); |
| |
| DISPLAY_DEVICE device; |
| device.cb = sizeof(device); |
| if (!EnumDisplayDevices(monitor_info.szDevice, 0, &device, 0)) |
| return FALSE; |
| |
| gfx::Size dpi(gfx::GetDPI()); |
| unit->id = base::Int64ToString(base::Hash(WideToUTF8(monitor_info.szDevice))); |
| unit->name = WideToUTF8(device.DeviceString); |
| unit->dpi_x = dpi.width(); |
| unit->dpi_y = dpi.height(); |
| all_displays->push_back(unit); |
| |
| return TRUE; |
| } |
| |
| } // namespace |
| |
| bool DisplayInfoProvider::SetInfo(const std::string& display_id, |
| const api::system_display::DisplayProperties& info, |
| std::string* error) { |
| *error = "Not implemented"; |
| return false; |
| } |
| |
| void DisplayInfoProvider::UpdateDisplayUnitInfoForPlatform( |
| const gfx::Display& display, |
| extensions::api::system_display::DisplayUnitInfo* unit) { |
| DisplayInfo all_displays; |
| EnumDisplayMonitors(NULL, NULL, EnumMonitorCallback, |
| reinterpret_cast<LPARAM>(&all_displays)); |
| for (size_t i = 0; i < all_displays.size(); ++i) { |
| if (unit->id == all_displays[i]->id) { |
| unit->name = all_displays[i]->name; |
| unit->dpi_x = all_displays[i]->dpi_x; |
| unit->dpi_y = all_displays[i]->dpi_y; |
| break; |
| } |
| } |
| } |
| |
| } // namespace extensions |