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
IconLoader(const base::FilePath & file_path,IconSize size,Delegate * delegate)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
~IconLoader()21 IconLoader::~IconLoader() {
22 }
23
Start()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
ReadGroup()32 void IconLoader::ReadGroup() {
33 group_ = ReadGroupIDFromFilepath(file_path_);
34 }
35
OnReadGroup()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
NotifyDelegate()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