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Side by Side Diff: chrome/browser/chromeos/app_mode/kiosk_app_icon_loader.cc

Issue 2778053002: Fetch ARC Kiosk app name and icon from Android side. (Closed)
Patch Set: address comments Created 3 years, 8 months ago
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1 // Copyright 2017 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/chromeos/app_mode/kiosk_app_icon_loader.h"
6
7 #include <vector>
8
9 #include "base/bind.h"
10 #include "base/files/file_util.h"
11 #include "base/threading/sequenced_worker_pool.h"
12 #include "chrome/browser/image_decoder.h"
13 #include "content/public/browser/browser_thread.h"
14
15 using content::BrowserThread;
16
17 namespace chromeos {
18
19 class KioskAppIconLoader::IconImageRequest : public ImageDecoder::ImageRequest {
20 public:
21 IconImageRequest(const scoped_refptr<base::SequencedTaskRunner>& task_runner,
22 KioskAppIconLoader* icon_loader)
23 : ImageRequest(task_runner), icon_loader_(icon_loader) {}
24
25 void OnImageDecoded(const SkBitmap& decoded_image) override {
26 icon_loader_->icon_ = gfx::ImageSkia::CreateFrom1xBitmap(decoded_image);
27 icon_loader_->icon_.MakeThreadSafe();
28 icon_loader_->ReportResultOnBlockingPool(SUCCESS);
29 delete this;
30 }
31
32 void OnDecodeImageFailed() override {
33 icon_loader_->ReportResultOnBlockingPool(FAILED_TO_DECODE);
34 delete this;
35 }
36
37 private:
38 ~IconImageRequest() override = default;
39 KioskAppIconLoader* icon_loader_;
40 };
41
42 KioskAppIconLoader::KioskAppIconLoader(const base::WeakPtr<Delegate>& client,
43 const base::FilePath& icon_path)
44 : client_(client), icon_path_(icon_path), load_result_(SUCCESS) {}
45
46 KioskAppIconLoader::~KioskAppIconLoader() = default;
47
48 void KioskAppIconLoader::Start() {
49 base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
50 base::SequencedWorkerPool::SequenceToken token = pool->GetSequenceToken();
51 task_runner_ = pool->GetSequencedTaskRunnerWithShutdownBehavior(
52 token, base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
53 task_runner_->PostTask(FROM_HERE,
54 base::Bind(&KioskAppIconLoader::LoadOnBlockingPool,
55 base::Unretained(this)));
56 }
57
58 void KioskAppIconLoader::LoadOnBlockingPool() {
59 DCHECK(task_runner_->RunsTasksOnCurrentThread());
60
61 std::string data;
62 if (!base::ReadFileToString(base::FilePath(icon_path_), &data)) {
63 ReportResultOnBlockingPool(FAILED_TO_LOAD);
64 return;
65 }
66 raw_icon_ = base::RefCountedString::TakeString(&data);
67
68 IconImageRequest* image_request = new IconImageRequest(task_runner_, this);
69 ImageDecoder::Start(image_request, raw_icon_->data());
70 }
71
72 void KioskAppIconLoader::ReportResultOnBlockingPool(LoadResult result) {
73 DCHECK(task_runner_->RunsTasksOnCurrentThread());
74
75 load_result_ = result;
76 BrowserThread::PostTask(
77 BrowserThread::UI, FROM_HERE,
78 base::Bind(&KioskAppIconLoader::ReportResultOnUIThread,
79 base::Unretained(this)));
80 }
81
82 void KioskAppIconLoader::NotifyClient() {
83 if (!client_)
84 return;
85
86 if (load_result_ == SUCCESS)
87 client_->OnIconLoadSuccess(icon_);
88 else
89 client_->OnIconLoadFailure();
90 }
91
92 void KioskAppIconLoader::ReportResultOnUIThread() {
93 DCHECK_CURRENTLY_ON(BrowserThread::UI);
94
95 NotifyClient();
96 delete this;
97 }
98
99 } // namespace chromeos
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