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// 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 "base/thread_task_runner_handle.h"
#include "content/public/browser/browser_thread.h"
using content::BrowserThread;
IconLoader::IconLoader(const base::FilePath& file_path,
IconSize size,
Delegate* delegate)
: target_task_runner_(NULL),
file_path_(file_path),
icon_size_(size),
delegate_(delegate) {}
IconLoader::~IconLoader() {
}
void IconLoader::Start() {
target_task_runner_ = base::ThreadTaskRunnerHandle::Get();
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.
}
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