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#pragma once
27
28#include "CompositeEditCommand.h"
29#include <wtf/text/WTFString.h>
30
31namespace WebCore {
32
33class Document;
34class VisibleSelection;
35
36class TextInsertionBaseCommand : public CompositeEditCommand {
37public:
38 virtual ~TextInsertionBaseCommand() { };
39
40protected:
41 explicit TextInsertionBaseCommand(Document&, EditAction = EditAction::Unspecified);
42 static void applyTextInsertionCommand(Frame*, TextInsertionBaseCommand&, const VisibleSelection& selectionForInsertion, const VisibleSelection& endingSelection);
43};
44
45String dispatchBeforeTextInsertedEvent(const String& text, const VisibleSelection& selectionForInsertion, bool insertionIsForUpdatingComposition);
46bool canAppendNewLineFeedToSelection(const VisibleSelection&);
47
48// LineOperation should define member function "opeartor (size_t lineOffset, size_t lineLength, bool isLastLine)".
49// lienLength doesn't include the newline character. So the value of lineLength could be 0.
50template <class LineOperation>
51void forEachLineInString(const String& string, const LineOperation& operation)
52{
53 unsigned offset = 0;
54 size_t newline;
55 while ((newline = string.find('\n', offset)) != notFound) {
56 operation(offset, newline - offset, false);
57 offset = newline + 1;
58 }
59 if (!offset)
60 operation(0, string.length(), true);
61 else {
62 unsigned length = string.length();
63 if (length != offset)
64 operation(offset, length - offset, true);
65 }
66}
67
68} // namespace WebCore
69