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1 /*
2  * Copyright (C) 2007 Apple Inc.  All rights reserved.
3  * Copyright (C) 2013 Google Inc.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include "config.h"
28 #include "core/page/DragData.h"
29 
30 #include "core/clipboard/DataObject.h"
31 #include "core/dom/DocumentFragment.h"
32 #include "core/dom/Range.h"
33 #include "core/editing/markup.h"
34 #include "core/frame/LocalFrame.h"
35 #include "platform/FileMetadata.h"
36 #include "platform/clipboard/ClipboardMimeTypes.h"
37 #include "platform/weborigin/KURL.h"
38 #include "wtf/text/WTFString.h"
39 
40 namespace blink {
41 
DragData(DataObject * data,const IntPoint & clientPosition,const IntPoint & globalPosition,DragOperation sourceOperationMask,DragApplicationFlags flags)42 DragData::DragData(DataObject* data, const IntPoint& clientPosition, const IntPoint& globalPosition,
43     DragOperation sourceOperationMask, DragApplicationFlags flags)
44     : m_clientPosition(clientPosition)
45     , m_globalPosition(globalPosition)
46     , m_platformDragData(data)
47     , m_draggingSourceOperationMask(sourceOperationMask)
48     , m_applicationFlags(flags)
49 {
50 }
51 
DragData(const String &,const IntPoint & clientPosition,const IntPoint & globalPosition,DragOperation sourceOperationMask,DragApplicationFlags flags)52 DragData::DragData(const String&, const IntPoint& clientPosition, const IntPoint& globalPosition,
53     DragOperation sourceOperationMask, DragApplicationFlags flags)
54     : m_clientPosition(clientPosition)
55     , m_globalPosition(globalPosition)
56     , m_platformDragData(0)
57     , m_draggingSourceOperationMask(sourceOperationMask)
58     , m_applicationFlags(flags)
59 {
60 }
61 
containsHTML(const DataObject * dropData)62 static bool containsHTML(const DataObject* dropData)
63 {
64     return dropData->types().contains(mimeTypeTextHTML);
65 }
66 
containsURL(FilenameConversionPolicy filenamePolicy) const67 bool DragData::containsURL(FilenameConversionPolicy filenamePolicy) const
68 {
69     return m_platformDragData->types().contains(mimeTypeTextURIList)
70         || (filenamePolicy == ConvertFilenames && m_platformDragData->containsFilenames());
71 }
72 
asURL(FilenameConversionPolicy filenamePolicy,String * title) const73 String DragData::asURL(FilenameConversionPolicy filenamePolicy, String* title) const
74 {
75     String url;
76     if (m_platformDragData->types().contains(mimeTypeTextURIList))
77         m_platformDragData->urlAndTitle(url, title);
78     else if (filenamePolicy == ConvertFilenames && containsFiles())
79         url = filePathToURL(m_platformDragData->filenames()[0]);
80     return url;
81 }
82 
containsFiles() const83 bool DragData::containsFiles() const
84 {
85     return m_platformDragData->containsFilenames();
86 }
87 
numberOfFiles() const88 unsigned DragData::numberOfFiles() const
89 {
90     return m_platformDragData->filenames().size();
91 }
92 
modifierKeyState() const93 int DragData::modifierKeyState() const
94 {
95     return m_platformDragData->modifierKeyState();
96 }
97 
asFilenames(Vector<String> & result) const98 void DragData::asFilenames(Vector<String>& result) const
99 {
100     const Vector<String>& filenames = m_platformDragData->filenames();
101     for (size_t i = 0; i < filenames.size(); ++i)
102         result.append(filenames[i]);
103 }
104 
containsPlainText() const105 bool DragData::containsPlainText() const
106 {
107     return m_platformDragData->types().contains(mimeTypeTextPlain);
108 }
109 
asPlainText() const110 String DragData::asPlainText() const
111 {
112     return m_platformDragData->getData(mimeTypeTextPlain);
113 }
114 
canSmartReplace() const115 bool DragData::canSmartReplace() const
116 {
117     // Mimic the situations in which mac allows drag&drop to do a smart replace.
118     // This is allowed whenever the drag data contains a 'range' (ie.,
119     // ClipboardWin::writeRange is called). For example, dragging a link
120     // should not result in a space being added.
121     return m_platformDragData->types().contains(mimeTypeTextPlain)
122         && !m_platformDragData->types().contains(mimeTypeTextURIList);
123 }
124 
containsCompatibleContent() const125 bool DragData::containsCompatibleContent() const
126 {
127     return containsPlainText()
128         || containsURL()
129         || containsHTML(m_platformDragData)
130         || containsFiles();
131 }
132 
asFragment(LocalFrame * frame,PassRefPtrWillBeRawPtr<Range>,bool,bool &) const133 PassRefPtrWillBeRawPtr<DocumentFragment> DragData::asFragment(LocalFrame* frame, PassRefPtrWillBeRawPtr<Range>, bool, bool&) const
134 {
135     /*
136      * Order is richest format first. On OSX this is:
137      * * Web Archive
138      * * Filenames
139      * * HTML
140      * * RTF
141      * * TIFF
142      * * PICT
143      */
144 
145     if (containsFiles()) {
146         // FIXME: Implement this. Should be pretty simple to make some HTML
147         // and call createFragmentFromMarkup.
148     }
149 
150     if (m_platformDragData->types().contains(mimeTypeTextHTML)) {
151         String html;
152         KURL baseURL;
153         m_platformDragData->htmlAndBaseURL(html, baseURL);
154         ASSERT(frame->document());
155         if (RefPtrWillBeRawPtr<DocumentFragment> fragment = createFragmentFromMarkup(*frame->document(), html, baseURL, DisallowScriptingAndPluginContent))
156             return fragment.release();
157     }
158 
159     return nullptr;
160 }
161 
droppedFileSystemId() const162 String DragData::droppedFileSystemId() const
163 {
164     return m_platformDragData->filesystemId();
165 }
166 
167 } // namespace blink
168