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