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/Clipboard.h"
35 #include "core/dom/DataTransferItem.h"
36 #include "core/dom/ExecutionContext.h"
37 #include "core/fileapi/File.h"
38 #include "core/platform/chromium/ChromiumDataObject.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 WebCore {
49
50 // static
webkitGetAsEntry(ExecutionContext * executionContext,DataTransferItem * item)51 PassRefPtr<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 DraggedIsolatedFileSystem* filesystem = DraggedIsolatedFileSystem::from(item->clipboard()->dataObject().get());
64 DOMFileSystem* domFileSystem = filesystem ? filesystem->getDOMFileSystem(executionContext) : 0;
65 if (!filesystem) {
66 // IsolatedFileSystem may not be enabled.
67 return 0;
68 }
69
70 ASSERT(domFileSystem);
71
72 // The dropped entries are mapped as top-level entries in the isolated filesystem.
73 String virtualPath = DOMFilePath::append("/", toFile(file)->name());
74
75 // FIXME: This involves synchronous file operation. Consider passing file type data when we dispatch drag event.
76 FileMetadata metadata;
77 if (!getFileMetadata(toFile(file)->path(), metadata))
78 return 0;
79
80 if (metadata.type == FileMetadata::TypeDirectory)
81 return DirectoryEntry::create(domFileSystem, virtualPath);
82 return FileEntry::create(domFileSystem, virtualPath);
83 }
84
85 } // namespace WebCore
86