1 /*
2 * Copyright (C) 2012 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef TextInsertionBaseCommand_h
27 #define TextInsertionBaseCommand_h
28
29 #include "core/editing/CompositeEditCommand.h"
30 #include "wtf/text/WTFString.h"
31
32 namespace WebCore {
33
34 class Document;
35 class VisibleSelection;
36
37 class TextInsertionBaseCommand : public CompositeEditCommand {
38 public:
~TextInsertionBaseCommand()39 virtual ~TextInsertionBaseCommand() { };
40
41 protected:
42 explicit TextInsertionBaseCommand(Document&);
43 static void applyTextInsertionCommand(Frame*, PassRefPtr<TextInsertionBaseCommand>, const VisibleSelection& selectionForInsertion, const VisibleSelection& endingSelection);
44 };
45
46 String dispatchBeforeTextInsertedEvent(const String& text, const VisibleSelection& selectionForInsertion, bool insertionIsForUpdatingComposition);
47 bool canAppendNewLineFeedToSelection(const VisibleSelection&);
48
49 // LineOperation should define member function "opeartor (size_t lineOffset, size_t lineLength, bool isLastLine)".
50 // lienLength doesn't include the newline character. So the value of lineLength could be 0.
51 template <class LineOperation>
forEachLineInString(const String & string,const LineOperation & operation)52 void forEachLineInString(const String& string, const LineOperation& operation)
53 {
54 unsigned offset = 0;
55 size_t newline;
56 while ((newline = string.find('\n', offset)) != kNotFound) {
57 operation(offset, newline - offset, false);
58 offset = newline + 1;
59 }
60 if (!offset)
61 operation(0, string.length(), true);
62 else {
63 unsigned length = string.length();
64 if (length != offset)
65 operation(offset, length - offset, true);
66 }
67 }
68
69 }
70
71 #endif
72