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#include "config.h"
27#include "TextInsertionBaseCommand.h"
28
29#include "BeforeTextInsertedEvent.h"
30#include "Document.h"
31#include "Element.h"
32#include "Frame.h"
33#include "FrameSelection.h"
34#include "Node.h"
35
36namespace WebCore {
37
38TextInsertionBaseCommand::TextInsertionBaseCommand(Document& document, EditAction editingAction)
39 : CompositeEditCommand(document, editingAction)
40{
41}
42
43void TextInsertionBaseCommand::applyTextInsertionCommand(Frame* frame, TextInsertionBaseCommand& command, const VisibleSelection& selectionForInsertion, const VisibleSelection& endingSelection)
44{
45 bool changeSelection = selectionForInsertion != endingSelection;
46 if (changeSelection) {
47 command.setStartingSelection(selectionForInsertion);
48 command.setEndingSelection(selectionForInsertion);
49 }
50 command.apply();
51 if (changeSelection) {
52 command.setEndingSelection(endingSelection);
53 frame->selection().setSelection(endingSelection);
54 }
55}
56
57String dispatchBeforeTextInsertedEvent(const String& text, const VisibleSelection& selectionForInsertion, bool insertionIsForUpdatingComposition)
58{
59 if (insertionIsForUpdatingComposition)
60 return text;
61
62 String newText = text;
63 if (Node* startNode = selectionForInsertion.start().containerNode()) {
64 if (startNode->rootEditableElement()) {
65 // Send BeforeTextInsertedEvent. The event handler will update text if necessary.
66 Ref<BeforeTextInsertedEvent> event = BeforeTextInsertedEvent::create(text);
67 startNode->rootEditableElement()->dispatchEvent(event);
68 newText = event->text();
69 }
70 }
71 return newText;
72}
73
74bool canAppendNewLineFeedToSelection(const VisibleSelection& selection)
75{
76 Node* node = selection.rootEditableElement();
77 if (!node)
78 return false;
79
80 Ref<BeforeTextInsertedEvent> event = BeforeTextInsertedEvent::create(String("\n"));
81 node->dispatchEvent(event);
82 return event->text().length();
83}
84
85}
86