1 /* 2 * Copyright (C) 2012 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 "config.h" 32 #include "modules/filesystem/DataTransferItemFileSystem.h" 33 34 #include "core/dom/ScriptExecutionContext.h" 35 #include "core/fileapi/File.h" 36 #include "core/platform/AsyncFileSystem.h" 37 #include "core/platform/AsyncFileSystemCallbacks.h" 38 #include "core/platform/FileMetadata.h" 39 #include "core/platform/FileSystem.h" 40 #include "core/platform/chromium/ChromiumDataObject.h" 41 #include "core/platform/chromium/ClipboardChromium.h" 42 #include "modules/filesystem/DOMFilePath.h" 43 #include "modules/filesystem/DOMFileSystem.h" 44 #include "modules/filesystem/DirectoryEntry.h" 45 #include "modules/filesystem/DraggedIsolatedFileSystem.h" 46 #include "modules/filesystem/Entry.h" 47 #include "modules/filesystem/FileEntry.h" 48 49 namespace WebCore { 50 51 // static 52 PassRefPtr<Entry> DataTransferItemFileSystem::webkitGetAsEntry(ScriptExecutionContext* scriptExecutionContext, DataTransferItem* item) 53 { 54 DataTransferItemPolicyWrapper* itemPolicyWrapper = static_cast<DataTransferItemPolicyWrapper*>(item); 55 56 if (!itemPolicyWrapper->dataObjectItem()->isFilename()) 57 return adoptRef(static_cast<Entry*>(0)); 58 59 // For dragged files getAsFile must be pretty lightweight. 60 Blob* file = itemPolicyWrapper->getAsFile().get(); 61 // The clipboard may not be in a readable state. 62 if (!file) 63 return adoptRef(static_cast<Entry*>(0)); 64 ASSERT(file->isFile()); 65 66 DraggedIsolatedFileSystem* filesystem = DraggedIsolatedFileSystem::from(itemPolicyWrapper->clipboard()->dataObject().get()); 67 DOMFileSystem* domFileSystem = filesystem ? filesystem->getDOMFileSystem(scriptExecutionContext) : 0; 68 if (!filesystem) { 69 // IsolatedFileSystem may not be enabled. 70 return adoptRef(static_cast<Entry*>(0)); 71 } 72 73 ASSERT(domFileSystem); 74 75 // The dropped entries are mapped as top-level entries in the isolated filesystem. 76 String virtualPath = DOMFilePath::append("/", toFile(file)->name()); 77 78 // FIXME: This involves synchronous file operation. Consider passing file type data when we dispatch drag event. 79 FileMetadata metadata; 80 if (!getFileMetadata(toFile(file)->path(), metadata)) 81 return adoptRef(static_cast<Entry*>(0)); 82 83 if (metadata.type == FileMetadata::TypeDirectory) 84 return static_cast<Entry*>(DirectoryEntry::create(domFileSystem, virtualPath).get()); 85 return static_cast<Entry*>(FileEntry::create(domFileSystem, virtualPath).get()); 86 } 87 88 } // namespace WebCore 89
