chrome/browser/icon_loader.cc

   1 // Copyright (c) 2012 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 <utility>
   8
   9 #include "base/bind.h"
  10 #include "base/task/thread_pool.h"
  11 #include "base/threading/thread_task_runner_handle.h"
  12 #include "content/public/browser/browser_thread.h"
  13
  14 using content::BrowserThread;
  15
  16 // static
  17 IconLoader* IconLoader::Create(const base::FilePath& file_path,
  18                                IconSize size,
  19                                IconLoadedCallback callback) {
  20   return new IconLoader(file_path, size, std::move(callback));
  21 }
  22
  23 void IconLoader::Start() {
  24   target_task_runner_ = base::ThreadTaskRunnerHandle::Get();
  25
  26   base::ThreadPool::PostTask(
  27       FROM_HERE, traits(),
  28       base::BindOnce(&IconLoader::ReadGroup, base::Unretained(this)));
  29 }
  30
  31 IconLoader::IconLoader(const base::FilePath& file_path,
  32                        IconSize size,
  33                        IconLoadedCallback callback)
  34     : file_path_(file_path),
  35 #if !defined(OS_ANDROID)
  36       icon_size_(size),
  37 #endif  // defined(OS_ANDROID)
  38       callback_(std::move(callback)) {
  39 }
  40
  41 IconLoader::~IconLoader() {}
  42
  43 #if !defined(OS_WIN)
  44 void IconLoader::ReadGroup() {
  45   group_ = GroupForFilepath(file_path_);
  46
  47   GetReadIconTaskRunner()->PostTask(
  48       FROM_HERE, base::BindOnce(&IconLoader::ReadIcon, base::Unretained(this)));
  49 }
  50 #endif  // !defined(OS_WIN)