screenlock_icon_source.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
1// Copyright 2013 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/webui/chromeos/login/screenlock_icon_source.h"
6
7#include "chrome/browser/chromeos/login/lock/screen_locker.h"
8#include "chrome/browser/ui/webui/chromeos/login/screenlock_icon_provider.h"
9#include "chrome/common/url_constants.h"
10#include "net/base/escape.h"
11
12namespace {
13
14gfx::Image GetDefaultIcon() {
15  return gfx::Image();
16}
17
18}  // namespace
19
20namespace chromeos {
21
22////////////////////////////////////////////////////////////////////////////////
23// ScreenlockIconSource
24
25ScreenlockIconSource::ScreenlockIconSource(
26    base::WeakPtr<ScreenlockIconProvider> icon_provider)
27    : icon_provider_(icon_provider) {
28}
29
30ScreenlockIconSource::~ScreenlockIconSource() {}
31
32std::string ScreenlockIconSource::GetSource() const {
33  return std::string(chrome::kChromeUIScreenlockIconHost);
34}
35
36void ScreenlockIconSource::StartDataRequest(
37    const std::string& path,
38    int render_process_id,
39    int render_frame_id,
40    const content::URLDataSource::GotDataCallback& callback) {
41  if (!icon_provider_) {
42    callback.Run(GetDefaultIcon().As1xPNGBytes());
43    return;
44  }
45
46  GURL url(chrome::kChromeUIScreenlockIconURL + path);
47  std::string username = net::UnescapeURLComponent(
48      url.path().substr(1),
49      net::UnescapeRule::URL_SPECIAL_CHARS | net::UnescapeRule::SPACES);
50
51  gfx::Image image = icon_provider_->GetIcon(username);
52  if (image.IsEmpty()) {
53    callback.Run(GetDefaultIcon().As1xPNGBytes());
54    return;
55  }
56
57  callback.Run(image.As1xPNGBytes().get());
58}
59
60std::string ScreenlockIconSource::GetMimeType(const std::string&) const {
61  return "image/png";
62}
63
64// static.
65std::string ScreenlockIconSource::GetIconURLForUser(
66    const std::string& username) {
67  return std::string(chrome::kChromeUIScreenlockIconURL) +
68      net::EscapePath(username);
69}
70
71}  // namespace chromeos
72