chrome/browser/ui/webui/chromeos/login/screenlock_icon_source.cc

   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/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
  12 namespace {
  13
  14 gfx::Image GetDefaultIcon() {
  15   return gfx::Image();
  16 }
  17
  18 }  // namespace
  19
  20 namespace chromeos {
  21
  22 ////////////////////////////////////////////////////////////////////////////////
  23 // ScreenlockIconSource
  24
  25 ScreenlockIconSource::ScreenlockIconSource(
  26     base::WeakPtr<ScreenlockIconProvider> icon_provider)
  27     : icon_provider_(icon_provider) {
  28 }
  29
  30 ScreenlockIconSource::~ScreenlockIconSource() {}
  31
  32 std::string ScreenlockIconSource::GetSource() const {
  33   return std::string(chrome::kChromeUIScreenlockIconHost);
  34 }
  35
  36 void 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   std::string username = net::UnescapeURLComponent(
  47       path,
  48       net::UnescapeRule::URL_SPECIAL_CHARS | net::UnescapeRule::SPACES);
  49
  50   gfx::Image image = icon_provider_->GetIcon(username);
  51   if (image.IsEmpty()) {
  52     callback.Run(GetDefaultIcon().As1xPNGBytes());
  53     return;
  54   }
  55
  56   callback.Run(image.As1xPNGBytes().get());
  57 }
  58
  59 std::string ScreenlockIconSource::GetMimeType(const std::string&) const {
  60   return "image/png";
  61 }
  62
  63 // static.
  64 std::string ScreenlockIconSource::GetIconURLForUser(
  65     const std::string& username) {
  66   return std::string(chrome::kChromeUIScreenlockIconURL) +
  67       net::EscapePath(username);
  68 }
  69
  70 }  // namespace chromeos