Add ICU message format support
[chromium-blink-merge.git] / content / browser / fileapi / chrome_blob_storage_context.cc
blob5e2c4c83d1defc227d18f01ec8ac48456abdf40f
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.
5 #include "content/browser/fileapi/chrome_blob_storage_context.h"
7 #include "base/bind.h"
8 #include "base/guid.h"
9 #include "content/public/browser/blob_handle.h"
10 #include "content/public/browser/browser_context.h"
11 #include "content/public/browser/browser_thread.h"
12 #include "storage/browser/blob/blob_data_builder.h"
13 #include "storage/browser/blob/blob_data_handle.h"
14 #include "storage/browser/blob/blob_storage_context.h"
16 using base::UserDataAdapter;
17 using storage::BlobStorageContext;
19 namespace content {
21 namespace {
23 const char kBlobStorageContextKeyName[] = "content_blob_storage_context";
25 class BlobHandleImpl : public BlobHandle {
26 public:
27 explicit BlobHandleImpl(scoped_ptr<storage::BlobDataHandle> handle)
28 : handle_(handle.Pass()) {}
30 ~BlobHandleImpl() override {}
32 std::string GetUUID() override { return handle_->uuid(); }
34 private:
35 scoped_ptr<storage::BlobDataHandle> handle_;
38 } // namespace
40 ChromeBlobStorageContext::ChromeBlobStorageContext() {}
42 ChromeBlobStorageContext* ChromeBlobStorageContext::GetFor(
43 BrowserContext* context) {
44 if (!context->GetUserData(kBlobStorageContextKeyName)) {
45 scoped_refptr<ChromeBlobStorageContext> blob =
46 new ChromeBlobStorageContext();
47 context->SetUserData(
48 kBlobStorageContextKeyName,
49 new UserDataAdapter<ChromeBlobStorageContext>(blob.get()));
50 // Check first to avoid memory leak in unittests.
51 if (BrowserThread::IsMessageLoopValid(BrowserThread::IO)) {
52 BrowserThread::PostTask(
53 BrowserThread::IO, FROM_HERE,
54 base::Bind(&ChromeBlobStorageContext::InitializeOnIOThread, blob));
58 return UserDataAdapter<ChromeBlobStorageContext>::Get(
59 context, kBlobStorageContextKeyName);
62 void ChromeBlobStorageContext::InitializeOnIOThread() {
63 DCHECK_CURRENTLY_ON(BrowserThread::IO);
64 context_.reset(new BlobStorageContext());
67 scoped_ptr<BlobHandle> ChromeBlobStorageContext::CreateMemoryBackedBlob(
68 const char* data, size_t length) {
69 DCHECK_CURRENTLY_ON(BrowserThread::IO);
71 std::string uuid(base::GenerateGUID());
72 storage::BlobDataBuilder blob_data_builder(uuid);
73 blob_data_builder.AppendData(data, length);
75 scoped_ptr<storage::BlobDataHandle> blob_data_handle =
76 context_->AddFinishedBlob(&blob_data_builder);
77 if (!blob_data_handle)
78 return scoped_ptr<BlobHandle>();
80 scoped_ptr<BlobHandle> blob_handle(
81 new BlobHandleImpl(blob_data_handle.Pass()));
82 return blob_handle.Pass();
85 scoped_ptr<BlobHandle> ChromeBlobStorageContext::CreateFileBackedBlob(
86 const base::FilePath& path,
87 int64_t offset,
88 int64_t size,
89 const base::Time& expected_modification_time) {
90 DCHECK_CURRENTLY_ON(BrowserThread::IO);
92 std::string uuid(base::GenerateGUID());
93 storage::BlobDataBuilder blob_data_builder(uuid);
94 blob_data_builder.AppendFile(path, offset, size, expected_modification_time);
96 scoped_ptr<storage::BlobDataHandle> blob_data_handle =
97 context_->AddFinishedBlob(&blob_data_builder);
98 if (!blob_data_handle)
99 return scoped_ptr<BlobHandle>();
101 scoped_ptr<BlobHandle> blob_handle(
102 new BlobHandleImpl(blob_data_handle.Pass()));
103 return blob_handle.Pass();
106 ChromeBlobStorageContext::~ChromeBlobStorageContext() {}
108 void ChromeBlobStorageContext::DeleteOnCorrectThread() const {
109 if (BrowserThread::IsMessageLoopValid(BrowserThread::IO) &&
110 !BrowserThread::CurrentlyOn(BrowserThread::IO)) {
111 BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE, this);
112 return;
114 delete this;
117 } // namespace content