1/*
2 * Copyright (C) 2005, 2006, 2008 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 "NodeTraversal.h"
30
31namespace WebCore {
32
33class DocumentFragment;
34class ReplacementFragment;
35
36class ReplaceSelectionCommand : public CompositeEditCommand {
37public:
38 enum CommandOption {
39 SelectReplacement = 1 << 0,
40 SmartReplace = 1 << 1,
41 MatchStyle = 1 << 2,
42 PreventNesting = 1 << 3,
43 MovingParagraph = 1 << 4,
44 SanitizeFragment = 1 << 5,
45 IgnoreMailBlockquote = 1 << 6,
46 };
47
48 static Ref<ReplaceSelectionCommand> create(Document& document, RefPtr<DocumentFragment>&& fragment, OptionSet<CommandOption> options, EditAction editingAction = EditAction::Insert)
49 {
50 return adoptRef(*new ReplaceSelectionCommand(document, WTFMove(fragment), options, editingAction));
51 }
52
53 VisibleSelection visibleSelectionForInsertedText() const { return m_visibleSelectionForInsertedText; }
54
55private:
56 ReplaceSelectionCommand(Document&, RefPtr<DocumentFragment>&&, OptionSet<CommandOption>, EditAction);
57
58 String inputEventData() const final;
59 RefPtr<DataTransfer> inputEventDataTransfer() const final;
60 bool willApplyCommand() final;
61 void doApply() override;
62
63 class InsertedNodes {
64 public:
65 void respondToNodeInsertion(Node*);
66 void willRemoveNodePreservingChildren(Node*);
67 void willRemoveNode(Node*);
68 void didReplaceNode(Node*, Node* newNode);
69
70 bool isEmpty() { return !m_firstNodeInserted; }
71 Node* firstNodeInserted() const { return m_firstNodeInserted.get(); }
72 Node* lastLeafInserted() const
73 {
74 ASSERT(m_lastNodeInserted);
75 return m_lastNodeInserted->lastDescendant();
76 }
77 Node* pastLastLeaf() const
78 {
79 ASSERT(m_lastNodeInserted);
80 return NodeTraversal::next(*lastLeafInserted());
81 }
82
83 private:
84 RefPtr<Node> m_firstNodeInserted;
85 RefPtr<Node> m_lastNodeInserted;
86 };
87
88 Node* insertAsListItems(HTMLElement& listElement, Node* insertionNode, const Position&, InsertedNodes&);
89
90 void updateNodesInserted(Node*);
91 bool shouldRemoveEndBR(Node*, const VisiblePosition&);
92
93 bool shouldMergeStart(bool, bool, bool);
94 bool shouldMergeEnd(bool selectionEndWasEndOfParagraph);
95 bool shouldMerge(const VisiblePosition&, const VisiblePosition&);
96
97 void mergeEndIfNeeded();
98
99 void removeUnrenderedTextNodesAtEnds(InsertedNodes&);
100
101 void removeRedundantStylesAndKeepStyleSpanInline(InsertedNodes&);
102 void makeInsertedContentRoundTrippableWithHTMLTreeBuilder(InsertedNodes&);
103 void moveNodeOutOfAncestor(Node&, Node& ancestor, InsertedNodes&);
104 void handleStyleSpans(InsertedNodes&);
105 void handlePasteAsQuotationNode();
106
107 VisiblePosition positionAtStartOfInsertedContent() const;
108 VisiblePosition positionAtEndOfInsertedContent() const;
109
110 bool shouldPerformSmartReplace() const;
111 bool shouldPerformSmartParagraphReplace() const;
112 void addSpacesForSmartReplace();
113 void addNewLinesForSmartReplace();
114 void completeHTMLReplacement(const Position& lastPositionToSelect);
115 void mergeTextNodesAroundPosition(Position&, Position& positionOnlyToBeUpdated);
116
117 ReplacementFragment* ensureReplacementFragment();
118 bool performTrivialReplace(const ReplacementFragment&);
119
120 VisibleSelection m_visibleSelectionForInsertedText;
121 Position m_startOfInsertedContent;
122 Position m_endOfInsertedContent;
123 RefPtr<EditingStyle> m_insertionStyle;
124 bool m_selectReplacement;
125 bool m_smartReplace;
126 bool m_matchStyle;
127 RefPtr<DocumentFragment> m_documentFragment;
128 std::unique_ptr<ReplacementFragment> m_replacementFragment;
129 String m_documentFragmentHTMLMarkup;
130 String m_documentFragmentPlainText;
131 bool m_preventNesting;
132 bool m_movingParagraph;
133 bool m_sanitizeFragment;
134 bool m_shouldMergeEnd;
135 bool m_ignoreMailBlockquote;
136};
137
138} // namespace WebCore
139