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| 1 // Copyright 2016 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/arc/fileapi/arc_file_system_instance_util.h" | |
| 6 | |
| 7 #include <string> | |
| 8 #include <utility> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/optional.h" | |
| 12 #include "components/arc/arc_bridge_service.h" | |
| 13 #include "components/arc/arc_service_manager.h" | |
| 14 #include "content/public/browser/browser_thread.h" | |
| 15 #include "url/gurl.h" | |
| 16 | |
| 17 #define GET_FILE_SYSTEM_INSTANCE(method_name) \ | |
| 18 (arc::ArcServiceManager::Get() \ | |
| 19 ? ARC_GET_INSTANCE_FOR_METHOD(arc::ArcServiceManager::Get() \ | |
| 20 ->arc_bridge_service() \ | |
| 21 ->file_system(), \ | |
| 22 method_name) \ | |
| 23 : nullptr) | |
| 24 | |
| 25 using content::BrowserThread; | |
| 26 | |
| 27 namespace arc { | |
| 28 | |
| 29 namespace file_system_instance_util { | |
| 30 | |
| 31 namespace { | |
| 32 | |
| 33 template <typename T> | |
| 34 void PostToIOThread(const base::Callback<void(T)>& callback, T result) { | |
| 35 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 36 BrowserThread::PostTask( | |
| 37 BrowserThread::IO, FROM_HERE, | |
| 38 base::Bind(callback, base::Passed(std::move(result)))); | |
| 39 } | |
| 40 | |
| 41 void GetFileSizeOnUIThread(const GURL& arc_url, | |
| 42 const GetFileSizeCallback& callback) { | |
| 43 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 44 auto* file_system_instance = GET_FILE_SYSTEM_INSTANCE(GetFileSize); | |
| 45 if (!file_system_instance) { | |
| 46 callback.Run(-1); | |
| 47 return; | |
| 48 } | |
| 49 file_system_instance->GetFileSize(arc_url.spec(), callback); | |
| 50 } | |
| 51 | |
| 52 void OpenFileToReadOnUIThread(const GURL& arc_url, | |
| 53 const OpenFileToReadCallback& callback) { | |
| 54 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 55 auto* file_system_instance = GET_FILE_SYSTEM_INSTANCE(OpenFileToRead); | |
| 56 if (!file_system_instance) { | |
| 57 callback.Run(mojo::ScopedHandle()); | |
| 58 return; | |
| 59 } | |
| 60 file_system_instance->OpenFileToRead(arc_url.spec(), callback); | |
| 61 } | |
| 62 | |
| 63 void GetDocumentOnUIThread(const std::string& authority, | |
| 64 const std::string& document_id, | |
| 65 const GetDocumentCallback& callback) { | |
| 66 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 67 auto* file_system_instance = GET_FILE_SYSTEM_INSTANCE(GetDocument); | |
| 68 if (!file_system_instance) { | |
| 69 callback.Run(mojom::DocumentPtr()); | |
| 70 return; | |
| 71 } | |
| 72 file_system_instance->GetDocument(authority, document_id, callback); | |
| 73 } | |
| 74 | |
| 75 void GetChildDocumentsOnUIThread(const std::string& authority, | |
| 76 const std::string& parent_document_id, | |
| 77 const GetChildDocumentsCallback& callback) { | |
| 78 DCHECK_CURRENTLY_ON(BrowserThread::UI); | |
| 79 auto* file_system_instance = GET_FILE_SYSTEM_INSTANCE(GetChildDocuments); | |
| 80 if (!file_system_instance) { | |
| 81 callback.Run(base::nullopt); | |
| 82 return; | |
| 83 } | |
| 84 file_system_instance->GetChildDocuments(authority, parent_document_id, | |
| 85 callback); | |
| 86 } | |
| 87 | |
| 88 } // namespace | |
| 89 | |
| 90 void GetFileSizeOnIOThread(const GURL& arc_url, | |
| 91 const GetFileSizeCallback& callback) { | |
| 92 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
| 93 BrowserThread::PostTask( | |
| 94 BrowserThread::UI, FROM_HERE, | |
| 95 base::Bind(&GetFileSizeOnUIThread, arc_url, | |
| 96 base::Bind(&PostToIOThread<int64_t>, callback))); | |
| 97 } | |
| 98 | |
| 99 void OpenFileToReadOnIOThread(const GURL& arc_url, | |
| 100 const OpenFileToReadCallback& callback) { | |
| 101 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
| 102 BrowserThread::PostTask( | |
| 103 BrowserThread::UI, FROM_HERE, | |
| 104 base::Bind(&OpenFileToReadOnUIThread, arc_url, | |
| 105 base::Bind(&PostToIOThread<mojo::ScopedHandle>, callback))); | |
| 106 } | |
| 107 | |
| 108 void GetDocumentOnIOThread(const std::string& authority, | |
| 109 const std::string& document_id, | |
| 110 const GetDocumentCallback& callback) { | |
| 111 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
| 112 BrowserThread::PostTask( | |
| 113 BrowserThread::UI, FROM_HERE, | |
| 114 base::Bind(&GetDocumentOnUIThread, authority, document_id, | |
| 115 base::Bind(&PostToIOThread<mojom::DocumentPtr>, callback))); | |
| 116 } | |
| 117 | |
| 118 void GetChildDocumentsOnIOThread(const std::string& authority, | |
| 119 const std::string& parent_document_id, | |
| 120 const GetChildDocumentsCallback& callback) { | |
| 121 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
| 122 BrowserThread::PostTask( | |
| 123 BrowserThread::UI, FROM_HERE, | |
| 124 base::Bind( | |
| 125 &GetChildDocumentsOnUIThread, authority, parent_document_id, | |
| 126 base::Bind( | |
| 127 &PostToIOThread<base::Optional<std::vector<mojom::DocumentPtr>>>, | |
| 128 callback))); | |
| 129 } | |
| 130 | |
| 131 } // namespace file_system_instance_util | |
| 132 | |
| 133 } // namespace arc | |
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