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// Copyright 2014 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/display_info_provider_win.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 "extensions/common/api/system_display.h"
#include "ui/gfx/screen.h"
#include "ui/gfx/size.h"
#include "ui/gfx/win/dpi.h"
namespace extensions {
using core_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);
GetMonitorInfo(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(base::WideToUTF8(monitor_info.szDevice)));
unit->name = base::WideToUTF8(device.DeviceString);
unit->dpi_x = dpi.width();
unit->dpi_y = dpi.height();
all_displays->push_back(unit);
return TRUE;
}
} // namespace
DisplayInfoProviderWin::DisplayInfoProviderWin() {
}
DisplayInfoProviderWin::~DisplayInfoProviderWin() {
}
bool DisplayInfoProviderWin::SetInfo(
const std::string& display_id,
const core_api::system_display::DisplayProperties& info,
std::string* error) {
*error = "Not implemented";
return false;
}
void DisplayInfoProviderWin::UpdateDisplayUnitInfoForPlatform(
const gfx::Display& display,
extensions::core_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;
}
}
}
gfx::Screen* DisplayInfoProviderWin::GetActiveScreen() {
// TODO(scottmg): native screen is wrong http://crbug.com/133312
return gfx::Screen::GetNativeScreen();
}
// static
DisplayInfoProvider* DisplayInfoProvider::Create() {
return new DisplayInfoProviderWin();
}
} // namespace extensions
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