| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/icon_loader.h" |
| |
| #include "base/basictypes.h" |
| #include "base/bind.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| using content::BrowserThread; |
| |
| IconLoader::IconLoader(const base::FilePath& file_path, |
| IconSize size, |
| Delegate* delegate) |
| : target_message_loop_(NULL), |
| file_path_(file_path), |
| icon_size_(size), |
| delegate_(delegate) {} |
| |
| IconLoader::~IconLoader() { |
| } |
| |
| void IconLoader::Start() { |
| target_message_loop_ = base::MessageLoopProxy::current(); |
| |
| BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE, |
| base::Bind(&IconLoader::ReadGroup, this), |
| base::Bind(&IconLoader::OnReadGroup, this)); |
| } |
| |
| void IconLoader::ReadGroup() { |
| group_ = ReadGroupIDFromFilepath(file_path_); |
| } |
| |
| void IconLoader::OnReadGroup() { |
| if (IsIconMutableFromFilepath(file_path_) || |
| !delegate_->OnGroupLoaded(this, group_)) { |
| BrowserThread::PostTask(ReadIconThreadID(), FROM_HERE, |
| base::Bind(&IconLoader::ReadIcon, this)); |
| } |
| } |
| |
| void IconLoader::NotifyDelegate() { |
| // If the delegate takes ownership of the Image, release it from the scoped |
| // pointer. |
| if (delegate_->OnImageLoaded(this, image_.get(), group_)) |
| ignore_result(image_.release()); // Can't ignore return value. |
| } |