1 /* 2 * Copyright (C) 2011 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 #ifndef DataObjectItem_h 32 #define DataObjectItem_h 33 34 #include "core/fileapi/File.h" 35 #include "platform/SharedBuffer.h" 36 #include "platform/heap/Handle.h" 37 #include "platform/weborigin/KURL.h" 38 #include "wtf/RefCounted.h" 39 #include "wtf/RefPtr.h" 40 #include "wtf/text/WTFString.h" 41 42 namespace WebCore { 43 44 class Blob; 45 46 class DataObjectItem : public RefCountedWillBeGarbageCollectedFinalized<DataObjectItem> { 47 public: 48 enum Kind { 49 StringKind, 50 FileKind 51 }; 52 53 static PassRefPtrWillBeRawPtr<DataObjectItem> createFromString(const String& type, const String& data); 54 static PassRefPtrWillBeRawPtr<DataObjectItem> createFromFile(PassRefPtrWillBeRawPtr<File>); 55 static PassRefPtrWillBeRawPtr<DataObjectItem> createFromURL(const String& url, const String& title); 56 static PassRefPtrWillBeRawPtr<DataObjectItem> createFromHTML(const String& html, const KURL& baseURL); 57 static PassRefPtrWillBeRawPtr<DataObjectItem> createFromSharedBuffer(const String& filename, PassRefPtr<SharedBuffer>); 58 static PassRefPtrWillBeRawPtr<DataObjectItem> createFromPasteboard(const String& type, uint64_t sequenceNumber); 59 60 Kind kind() const { return m_kind; } 61 String type() const { return m_type; } 62 String getAsString() const; 63 PassRefPtrWillBeRawPtr<Blob> getAsFile() const; 64 65 // Used to support legacy DataTransfer APIs and renderer->browser serialization. 66 PassRefPtr<SharedBuffer> sharedBuffer() const { return m_sharedBuffer; } 67 String title() const { return m_title; } 68 KURL baseURL() const { return m_baseURL; } 69 bool isFilename() const; 70 71 void trace(Visitor*); 72 73 private: 74 enum DataSource { 75 PasteboardSource, 76 InternalSource, 77 }; 78 79 DataObjectItem(Kind, const String& type); 80 DataObjectItem(Kind, const String& type, uint64_t sequenceNumber); 81 82 DataSource m_source; 83 Kind m_kind; 84 String m_type; 85 86 String m_data; 87 RefPtrWillBeMember<File> m_file; 88 RefPtr<SharedBuffer> m_sharedBuffer; 89 // Optional metadata. Currently used for URL, HTML, and dragging files in. 90 String m_title; 91 KURL m_baseURL; 92 93 uint64_t m_sequenceNumber; // Only valid when m_source == PasteboardSource 94 }; 95 96 } // namespace WebCore 97 98 #endif // DataObjectItem_h 99
