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1 /* | 1 /* |
2 * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved. |
3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) | 3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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88 // TODO(yosin): We should fix |startOfWord()| and |endOfWord()| not to return | 88 // TODO(yosin): We should fix |startOfWord()| and |endOfWord()| not to return |
89 // null position. | 89 // null position. |
90 const VisiblePosition& start = StartOfWord(position, kLeftWordIfOnBoundary); | 90 const VisiblePosition& start = StartOfWord(position, kLeftWordIfOnBoundary); |
91 const VisiblePosition& end = EndOfWord(position, kRightWordIfOnBoundary); | 91 const VisiblePosition& end = EndOfWord(position, kRightWordIfOnBoundary); |
92 return SelectionInDOMTree::Builder() | 92 return SelectionInDOMTree::Builder() |
93 .SetBaseAndExtentDeprecated(start.DeepEquivalent(), end.DeepEquivalent()) | 93 .SetBaseAndExtentDeprecated(start.DeepEquivalent(), end.DeepEquivalent()) |
94 .SetAffinity(start.Affinity()) | 94 .SetAffinity(start.Affinity()) |
95 .Build(); | 95 .Build(); |
96 } | 96 } |
97 | 97 |
98 EphemeralRange ExpandSelectionRangeIfNecessary( | |
99 const VisibleSelection& selection) { | |
100 DCHECK(!selection.IsNone()); | |
101 | |
102 // If some text is actually selected, we can use the selection range as-is to | |
103 // check for a marker. If no text is selected (we just have a caret | |
104 // somewhere), we need to expand one character on either side so we can find | |
105 // a spelling marker immediately before or after the caret. | |
106 | |
107 // (The spelling markers on these words may be anchored to a different node | |
108 // than the collapsed selection's Position is, but once we expand the | |
109 // selection, if we're next to a marker, either the start or end point should | |
110 // now be anchored relative to the same text node as that marker.) | |
111 | |
112 // Some text is actually selected | |
113 if (selection.IsRange()) | |
114 return EphemeralRange(selection.Start(), selection.End()); | |
115 | |
116 // No text is actually selected, need to expand the selection range. This is | |
117 // to make sure we can find a marker touching the caret. E.g. if we have: | |
118 // <span>word1 <b>word2</b></span> | |
119 // with a caret selection immediately before "word2", there's one text node | |
120 // immediately before the caret ("word1 ") and one immediately after | |
121 // ("word2"). Expanding the selection by one character on either side ensures | |
122 // we get a range that intersects both neighboring text nodes (if they exist). | |
123 const VisiblePosition& caret_position = selection.VisibleStart(); | |
124 | |
125 const Position& previous_position = | |
126 PreviousPositionOf(caret_position).DeepEquivalent(); | |
127 | |
128 const Position& next_position = | |
129 NextPositionOf(caret_position).DeepEquivalent(); | |
130 | |
131 return EphemeralRange( | |
132 previous_position.IsNull() ? caret_position.DeepEquivalent() | |
133 : previous_position, | |
134 next_position.IsNull() ? caret_position.DeepEquivalent() : next_position); | |
135 } | |
136 | |
137 } // namespace | 98 } // namespace |
138 | 99 |
139 SpellChecker* SpellChecker::Create(LocalFrame& frame) { | 100 SpellChecker* SpellChecker::Create(LocalFrame& frame) { |
140 return new SpellChecker(frame); | 101 return new SpellChecker(frame); |
141 } | 102 } |
142 | 103 |
143 static SpellCheckerClient& GetEmptySpellCheckerClient() { | 104 static SpellCheckerClient& GetEmptySpellCheckerClient() { |
144 DEFINE_STATIC_LOCAL(EmptySpellCheckerClient, client, ()); | 105 DEFINE_STATIC_LOCAL(EmptySpellCheckerClient, client, ()); |
145 return client; | 106 return client; |
146 } | 107 } |
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862 marker_types.Add(DocumentMarker::kGrammar); | 823 marker_types.Add(DocumentMarker::kGrammar); |
863 for (Node& node : NodeTraversal::InclusiveDescendantsOf(element)) { | 824 for (Node& node : NodeTraversal::InclusiveDescendantsOf(element)) { |
864 if (elements_type == ElementsType::kAll || !HasEditableStyle(node)) { | 825 if (elements_type == ElementsType::kAll || !HasEditableStyle(node)) { |
865 GetFrame().GetDocument()->Markers().RemoveMarkersForNode(&node, | 826 GetFrame().GetDocument()->Markers().RemoveMarkersForNode(&node, |
866 marker_types); | 827 marker_types); |
867 } | 828 } |
868 } | 829 } |
869 } | 830 } |
870 | 831 |
871 Optional<std::pair<Node*, SpellCheckMarker*>> | 832 Optional<std::pair<Node*, SpellCheckMarker*>> |
872 SpellChecker::GetSpellCheckMarkerTouchingSelection() { | 833 SpellChecker::GetSpellCheckMarkerUnderSelection() { |
873 const VisibleSelection& selection = | 834 const VisibleSelection& selection = |
874 GetFrame().Selection().ComputeVisibleSelectionInDOMTree(); | 835 GetFrame().Selection().ComputeVisibleSelectionInDOMTree(); |
875 if (selection.IsNone()) | 836 if (selection.IsNone()) |
876 return Optional<std::pair<Node*, SpellCheckMarker*>>(); | 837 return Optional<std::pair<Node*, SpellCheckMarker*>>(); |
877 | 838 |
878 const EphemeralRange& range_to_check = | 839 const EphemeralRange& range_to_check = FirstEphemeralRangeOf(selection); |
879 ExpandSelectionRangeIfNecessary(selection); | |
880 | 840 |
881 Node* const start_container = | 841 Node* const start_container = |
882 range_to_check.StartPosition().ComputeContainerNode(); | 842 range_to_check.StartPosition().ComputeContainerNode(); |
883 const unsigned start_offset = | 843 const unsigned start_offset = |
884 range_to_check.StartPosition().ComputeOffsetInContainerNode(); | 844 range_to_check.StartPosition().ComputeOffsetInContainerNode(); |
885 Node* const end_container = | 845 Node* const end_container = |
886 range_to_check.EndPosition().ComputeContainerNode(); | 846 range_to_check.EndPosition().ComputeContainerNode(); |
887 const unsigned end_offset = | 847 const unsigned end_offset = |
888 range_to_check.EndPosition().ComputeOffsetInContainerNode(); | 848 range_to_check.EndPosition().ComputeOffsetInContainerNode(); |
889 | 849 |
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900 return std::make_pair(&node, &ToSpellCheckMarker(*marker)); | 860 return std::make_pair(&node, &ToSpellCheckMarker(*marker)); |
901 } | 861 } |
902 } | 862 } |
903 | 863 |
904 // No marker found | 864 // No marker found |
905 return Optional<std::pair<Node*, SpellCheckMarker*>>(); | 865 return Optional<std::pair<Node*, SpellCheckMarker*>>(); |
906 } | 866 } |
907 | 867 |
908 void SpellChecker::ReplaceMisspelledRange(const String& text) { | 868 void SpellChecker::ReplaceMisspelledRange(const String& text) { |
909 const Optional<std::pair<Node*, SpellCheckMarker*>>& node_and_marker = | 869 const Optional<std::pair<Node*, SpellCheckMarker*>>& node_and_marker = |
910 GetSpellCheckMarkerTouchingSelection(); | 870 GetSpellCheckMarkerUnderSelection(); |
911 if (!node_and_marker) | 871 if (!node_and_marker) |
912 return; | 872 return; |
913 | 873 |
914 Node* const container_node = node_and_marker.value().first; | 874 Node* const container_node = node_and_marker.value().first; |
915 const SpellCheckMarker* const marker = node_and_marker.value().second; | 875 const SpellCheckMarker* const marker = node_and_marker.value().second; |
916 | 876 |
917 GetFrame().Selection().SetSelection( | 877 GetFrame().Selection().SetSelection( |
918 SelectionInDOMTree::Builder() | 878 SelectionInDOMTree::Builder() |
919 .Collapse(Position(container_node, marker->StartOffset())) | 879 .Collapse(Position(container_node, marker->StartOffset())) |
920 .Extend(Position(container_node, marker->EndOffset())) | 880 .Extend(Position(container_node, marker->EndOffset())) |
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1302 if (!input.IsFocusedElementInDocument()) | 1262 if (!input.IsFocusedElementInDocument()) |
1303 return false; | 1263 return false; |
1304 } | 1264 } |
1305 } | 1265 } |
1306 HTMLElement* element = | 1266 HTMLElement* element = |
1307 Traversal<HTMLElement>::FirstAncestorOrSelf(*position.AnchorNode()); | 1267 Traversal<HTMLElement>::FirstAncestorOrSelf(*position.AnchorNode()); |
1308 return element && element->IsSpellCheckingEnabled(); | 1268 return element && element->IsSpellCheckingEnabled(); |
1309 } | 1269 } |
1310 | 1270 |
1311 } // namespace blink | 1271 } // namespace blink |
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