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 "base/basictypes.h" 8 #include "base/bind.h" 9 #include "content/public/browser/browser_thread.h" 10 11 using content::BrowserThread; 12 13 IconLoader::IconLoader(const base::FilePath& file_path, 14 IconSize size, 15 Delegate* delegate) 16 : target_message_loop_(NULL), 17 file_path_(file_path), 18 icon_size_(size), 19 delegate_(delegate) {} 20 21 IconLoader::~IconLoader() { 22 } 23 24 void IconLoader::Start() { 25 target_message_loop_ = base::MessageLoopProxy::current(); 26 27 BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE, 28 base::Bind(&IconLoader::ReadGroup, this), 29 base::Bind(&IconLoader::OnReadGroup, this)); 30 } 31 32 void IconLoader::ReadGroup() { 33 group_ = ReadGroupIDFromFilepath(file_path_); 34 } 35 36 void IconLoader::OnReadGroup() { 37 if (IsIconMutableFromFilepath(file_path_) || 38 !delegate_->OnGroupLoaded(this, group_)) { 39 BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE, 40 base::Bind(&IconLoader::ReadIcon, this)); 41 } 42 } 43 44 void IconLoader::NotifyDelegate() { 45 // If the delegate takes ownership of the Image, release it from the scoped 46 // pointer. 47 if (delegate_->OnImageLoaded(this, image_.get(), group_)) 48 ignore_result(image_.release()); // Can't ignore return value. 49 } 50
