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| 1 /* | |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "modules/filesystem/DirectoryReaderSync.h" | |
| 32 | |
| 33 #include "bindings/core/v8/ExceptionState.h" | |
| 34 #include "modules/filesystem/DirectoryEntry.h" | |
| 35 #include "modules/filesystem/DirectoryEntrySync.h" | |
| 36 #include "modules/filesystem/EntriesCallback.h" | |
| 37 #include "modules/filesystem/EntrySync.h" | |
| 38 #include "modules/filesystem/ErrorCallback.h" | |
| 39 #include "modules/filesystem/FileEntrySync.h" | |
| 40 #include "modules/filesystem/FileSystemCallbacks.h" | |
| 41 | |
| 42 namespace blink { | |
| 43 | |
| 44 class DirectoryReaderSync::EntriesCallbackHelper final | |
| 45 : public EntriesCallback { | |
| 46 public: | |
| 47 explicit EntriesCallbackHelper(DirectoryReaderSync* reader) | |
| 48 : m_reader(reader) {} | |
| 49 | |
| 50 void handleEvent(const EntryHeapVector& entries) override { | |
| 51 EntrySyncHeapVector syncEntries; | |
| 52 syncEntries.reserveInitialCapacity(entries.size()); | |
| 53 for (size_t i = 0; i < entries.size(); ++i) | |
| 54 syncEntries.uncheckedAppend(EntrySync::create(entries[i].get())); | |
| 55 m_reader->addEntries(syncEntries); | |
| 56 } | |
| 57 | |
| 58 DEFINE_INLINE_VIRTUAL_TRACE() { | |
| 59 visitor->trace(m_reader); | |
| 60 EntriesCallback::trace(visitor); | |
| 61 } | |
| 62 | |
| 63 private: | |
| 64 Member<DirectoryReaderSync> m_reader; | |
| 65 }; | |
| 66 | |
| 67 class DirectoryReaderSync::ErrorCallbackHelper final | |
| 68 : public ErrorCallbackBase { | |
| 69 public: | |
| 70 explicit ErrorCallbackHelper(DirectoryReaderSync* reader) | |
| 71 : m_reader(reader) {} | |
| 72 | |
| 73 void invoke(FileError::ErrorCode error) override { | |
| 74 m_reader->setError(error); | |
| 75 } | |
| 76 | |
| 77 DEFINE_INLINE_VIRTUAL_TRACE() { | |
| 78 visitor->trace(m_reader); | |
| 79 ErrorCallbackBase::trace(visitor); | |
| 80 } | |
| 81 | |
| 82 private: | |
| 83 Member<DirectoryReaderSync> m_reader; | |
| 84 }; | |
| 85 | |
| 86 DirectoryReaderSync::DirectoryReaderSync(DOMFileSystemBase* fileSystem, | |
| 87 const String& fullPath) | |
| 88 : DirectoryReaderBase(fileSystem, fullPath), | |
| 89 m_callbacksId(0), | |
| 90 m_errorCode(FileError::kOK) {} | |
| 91 | |
| 92 DirectoryReaderSync::~DirectoryReaderSync() {} | |
| 93 | |
| 94 EntrySyncHeapVector DirectoryReaderSync::readEntries( | |
| 95 ExceptionState& exceptionState) { | |
| 96 if (!m_callbacksId) { | |
| 97 m_callbacksId = filesystem()->readDirectory( | |
| 98 this, m_fullPath, new EntriesCallbackHelper(this), | |
| 99 new ErrorCallbackHelper(this), DOMFileSystemBase::Synchronous); | |
| 100 } | |
| 101 | |
| 102 if (m_errorCode == FileError::kOK && m_hasMoreEntries && m_entries.isEmpty()) | |
| 103 m_fileSystem->waitForAdditionalResult(m_callbacksId); | |
| 104 | |
| 105 if (m_errorCode != FileError::kOK) { | |
| 106 FileError::throwDOMException(exceptionState, m_errorCode); | |
| 107 return EntrySyncHeapVector(); | |
| 108 } | |
| 109 | |
| 110 EntrySyncHeapVector result; | |
| 111 result.swap(m_entries); | |
| 112 return result; | |
| 113 } | |
| 114 | |
| 115 DEFINE_TRACE(DirectoryReaderSync) { | |
| 116 visitor->trace(m_entries); | |
| 117 DirectoryReaderBase::trace(visitor); | |
| 118 } | |
| 119 | |
| 120 } // namespace blink | |
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Chromium Code Reviews
Issue 2297043002:
Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends (Closed)
