1// Copyright (c) 2011 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/icon_loader.h"
6
7#include <windows.h>
8#include <shellapi.h>
9
10#include "base/message_loop.h"
11#include "base/threading/thread.h"
12#include "ui/gfx/icon_util.h"
13#include "ui/gfx/size.h"
14
15void IconLoader::ReadIcon() {
16  int size = 0;
17  switch (icon_size_) {
18    case IconLoader::SMALL:
19      size = SHGFI_SMALLICON;
20      break;
21    case IconLoader::NORMAL:
22      size = 0;
23      break;
24    case IconLoader::LARGE:
25      size = SHGFI_LARGEICON;
26      break;
27    default:
28      NOTREACHED();
29  }
30  SHFILEINFO file_info = { 0 };
31  if (!SHGetFileInfo(group_.c_str(), FILE_ATTRIBUTE_NORMAL, &file_info,
32                     sizeof(SHFILEINFO),
33                     SHGFI_ICON | size | SHGFI_USEFILEATTRIBUTES))
34    return;
35
36  ICONINFO icon_info = { 0 };
37  BITMAP bitmap_info = { 0 };
38
39  BOOL r = ::GetIconInfo(file_info.hIcon, &icon_info);
40  DCHECK(r);
41  r = ::GetObject(icon_info.hbmMask, sizeof(bitmap_info), &bitmap_info);
42  DCHECK(r);
43
44  gfx::Size icon_size(bitmap_info.bmWidth, bitmap_info.bmHeight);
45  image_.reset(new gfx::Image(
46      IconUtil::CreateSkBitmapFromHICON(file_info.hIcon, icon_size)));
47
48  target_message_loop_->PostTask(FROM_HERE,
49      NewRunnableMethod(this, &IconLoader::NotifyDelegate));
50}
51