OLD | NEW |
---|---|
1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. | 5 * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. |
6 * (C) 2006 Alexey Proskuryakov (ap@nypop.com) | 6 * (C) 2006 Alexey Proskuryakov (ap@nypop.com) |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
(...skipping 12 matching lines...) Expand all Loading... | |
23 */ | 23 */ |
24 | 24 |
25 #include "config.h" | 25 #include "config.h" |
26 #include "core/html/HTMLTextFormControlElement.h" | 26 #include "core/html/HTMLTextFormControlElement.h" |
27 | 27 |
28 #include "bindings/core/v8/ExceptionState.h" | 28 #include "bindings/core/v8/ExceptionState.h" |
29 #include "bindings/core/v8/ExceptionStatePlaceholder.h" | 29 #include "bindings/core/v8/ExceptionStatePlaceholder.h" |
30 #include "core/HTMLNames.h" | 30 #include "core/HTMLNames.h" |
31 #include "core/accessibility/AXObjectCache.h" | 31 #include "core/accessibility/AXObjectCache.h" |
32 #include "core/dom/Document.h" | 32 #include "core/dom/Document.h" |
33 #include "core/dom/NodeList.h" | |
33 #include "core/dom/NodeTraversal.h" | 34 #include "core/dom/NodeTraversal.h" |
34 #include "core/dom/Text.h" | 35 #include "core/dom/Text.h" |
35 #include "core/dom/shadow/ShadowRoot.h" | 36 #include "core/dom/shadow/ShadowRoot.h" |
36 #include "core/editing/FrameSelection.h" | 37 #include "core/editing/FrameSelection.h" |
37 #include "core/editing/TextIterator.h" | 38 #include "core/editing/TextIterator.h" |
38 #include "core/events/Event.h" | 39 #include "core/events/Event.h" |
39 #include "core/frame/LocalFrame.h" | 40 #include "core/frame/LocalFrame.h" |
40 #include "core/frame/UseCounter.h" | 41 #include "core/frame/UseCounter.h" |
41 #include "core/html/HTMLBRElement.h" | 42 #include "core/html/HTMLBRElement.h" |
42 #include "core/html/shadow/ShadowElementNames.h" | 43 #include "core/html/shadow/ShadowElementNames.h" |
43 #include "core/rendering/RenderBlock.h" | 44 #include "core/rendering/RenderBlock.h" |
44 #include "core/rendering/RenderTheme.h" | 45 #include "core/rendering/RenderTheme.h" |
45 #include "platform/heap/Handle.h" | 46 #include "platform/heap/Handle.h" |
47 #include "platform/text/TextBoundaries.h" | |
46 #include "wtf/text/StringBuilder.h" | 48 #include "wtf/text/StringBuilder.h" |
47 | 49 |
48 namespace WebCore { | 50 namespace WebCore { |
49 | 51 |
50 using namespace HTMLNames; | 52 using namespace HTMLNames; |
51 | 53 |
52 HTMLTextFormControlElement::HTMLTextFormControlElement(const QualifiedName& tagN ame, Document& doc, HTMLFormElement* form) | 54 HTMLTextFormControlElement::HTMLTextFormControlElement(const QualifiedName& tagN ame, Document& doc, HTMLFormElement* form) |
53 : HTMLFormControlElementWithState(tagName, doc, form) | 55 : HTMLFormControlElementWithState(tagName, doc, form) |
54 , m_lastChangeWasUserEdit(false) | 56 , m_lastChangeWasUserEdit(false) |
55 , m_cachedSelectionStart(0) | 57 , m_cachedSelectionStart(0) |
(...skipping 596 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
652 } | 654 } |
653 | 655 |
654 return "ltr"; | 656 return "ltr"; |
655 } | 657 } |
656 | 658 |
657 HTMLElement* HTMLTextFormControlElement::innerEditorElement() const | 659 HTMLElement* HTMLTextFormControlElement::innerEditorElement() const |
658 { | 660 { |
659 return toHTMLElement(userAgentShadowRoot()->getElementById(ShadowElementName s::innerEditor())); | 661 return toHTMLElement(userAgentShadowRoot()->getElementById(ShadowElementName s::innerEditor())); |
660 } | 662 } |
661 | 663 |
664 static Position innerNodePosition(const Position& innerPosition) | |
665 { | |
666 HTMLElement* element = toHTMLElement(innerPosition.anchorNode()); | |
667 ASSERT(element); | |
668 RefPtrWillBeRawPtr<NodeList> childNodes = element->childNodes(); | |
669 if (!childNodes->length()) | |
670 return Position(element, 0, Position::PositionIsOffsetInAnchor); | |
671 | |
672 unsigned offset = 0; | |
673 | |
674 switch (innerPosition.anchorType()) { | |
675 case Position::PositionIsOffsetInAnchor: | |
676 offset = std::max(0, std::min(innerPosition.offsetInContainerNode(), sta tic_cast<int>(childNodes->length()))); | |
677 break; | |
678 case Position::PositionIsAfterChildren: | |
679 offset = childNodes->length(); | |
680 break; | |
681 case Position::PositionIsBeforeAnchor: | |
682 case Position::PositionIsAfterAnchor: | |
683 ASSERT_NOT_REACHED(); | |
Yuta Kitamura
2014/07/04 06:12:35
This assertion fails to ASSERT if the function exi
yoichio
2014/07/04 07:25:26
Done.
| |
684 break; | |
685 default: | |
686 break; | |
687 } | |
688 | |
689 if (offset == childNodes->length()) | |
690 return Position(element->lastChild(), Position::PositionIsAfterAnchor); | |
691 | |
692 Node* node = childNodes->item(offset); | |
693 if (node->isTextNode()) | |
694 return Position(toText(node), 0); | |
695 | |
696 return Position(node, Position::PositionIsBeforeAnchor); | |
697 } | |
698 | |
699 static Position findWordBoundary(const HTMLElement* innerEditor, const Position& startPosition, const Position& endPosition, bool findStart) | |
Yuta Kitamura
2014/07/04 06:12:35
Prefer enums to bools on function parameters. The
yoichio
2014/07/04 07:25:26
Done.
| |
700 { | |
701 Vector<UChar> characters; | |
702 Vector<unsigned> lengthList; | |
703 Vector<Text*> textList; | |
704 | |
705 if (startPosition.anchorNode()->isTextNode()) | |
706 ASSERT(startPosition.anchorType() == Position::PositionIsOffsetInAnchor) ; | |
707 if (endPosition.anchorNode()->isTextNode()) | |
708 ASSERT(endPosition.anchorType() == Position::PositionIsOffsetInAnchor); | |
709 | |
710 // Trace text nodes. | |
711 for (Node* node = startPosition.anchorNode(); node; node = NodeTraversal::ne xt(*node, innerEditor)) { | |
712 bool isStartNode = node == startPosition.anchorNode(); | |
713 bool isEndNode = node == endPosition.anchorNode(); | |
714 if (node->isTextNode()) { | |
715 Text* text = toText(node); | |
716 const unsigned start = isStartNode ? startPosition.offsetInContainer Node() : 0; | |
717 const unsigned end = isEndNode ? endPosition.offsetInContainerNode() : text->data().length(); | |
718 for (unsigned offset = start; offset < end; ++offset) | |
719 characters.append(text->data()[offset]); | |
720 const unsigned length = end - start; | |
721 | |
722 lengthList.append(length); | |
723 textList.append(text); | |
724 } | |
725 | |
726 if (isEndNode) | |
727 break; | |
728 } | |
729 | |
730 if (!characters.size()) | |
731 return startPosition; | |
732 | |
733 int start, end; | |
734 if (!findStart && characters.data()[0] == '\n') { | |
Yuta Kitamura
2014/07/04 06:12:35
".data()" isn't necessary.
yoichio
2014/07/04 07:25:26
Done.
| |
735 // findWordBoundary("\ntext", 0, &start, &end) assigns 1 to |end| but we expect 0 at the case. | |
736 start = 0; | |
737 end = 0; | |
738 } else { | |
739 findWordBoundary(characters.data(), characters.size(), findStart ? chara cters.size() : 0, &start, &end); | |
740 } | |
741 ASSERT(start >= 0); | |
742 ASSERT(end >= 0); | |
743 unsigned remainingOffset = findStart ? start : end; | |
744 // Find position. | |
745 for (unsigned i = 0; i < lengthList.size(); ++i) { | |
746 if (remainingOffset <= lengthList[i]) | |
747 return Position(textList[i], (textList[i] == startPosition.anchorNod e()) ? remainingOffset + startPosition.offsetInContainerNode() : remainingOffset ); | |
748 remainingOffset -= lengthList[i]; | |
749 } | |
750 | |
751 ASSERT_NOT_REACHED(); | |
752 return Position(); | |
753 } | |
754 | |
755 Position HTMLTextFormControlElement::startOfWord(const Position& position) | |
756 { | |
757 const HTMLTextFormControlElement* textFormControl = enclosingTextFormControl (position); | |
758 ASSERT(textFormControl); | |
759 HTMLElement* innerEditor = textFormControl->innerEditorElement(); | |
760 | |
761 const Position startPosition = startOfSentence(position); | |
762 if (startPosition == position) | |
763 return position; | |
764 const Position endPosition = (position.anchorNode() == innerEditor) ? innerN odePosition(position) : position; | |
765 | |
766 return findWordBoundary(innerEditor, startPosition, endPosition, true); | |
767 } | |
768 | |
769 Position HTMLTextFormControlElement::endOfWord(const Position& position) | |
770 { | |
771 const HTMLTextFormControlElement* textFormControl = enclosingTextFormControl (position); | |
772 ASSERT(textFormControl); | |
773 HTMLElement* innerEditor = textFormControl->innerEditorElement(); | |
774 | |
775 | |
Yuta Kitamura
2014/07/04 06:12:35
nit: Unnecessary blank line.
yoichio
2014/07/04 07:25:26
Done.
| |
776 const Position endPosition = endOfSentence(position); | |
777 if (endPosition == position) | |
778 return position; | |
779 const Position startPosition = (position.anchorNode() == innerEditor) ? inne rNodePosition(position) : position; | |
780 | |
781 return findWordBoundary(innerEditor, startPosition, endPosition, false); | |
782 } | |
783 | |
784 static int findLastLineBreak(const Text& text, int offset) | |
785 { | |
786 for (; offset >= 0; --offset) { | |
787 if (text.data()[offset] == '\n') | |
788 return offset; | |
Yuta Kitamura
2014/07/04 06:12:35
Use String::reverseFind().
yoichio
2014/07/04 07:25:26
Done. Removed this function and inlined at call.
| |
789 } | |
790 return -1; | |
791 } | |
792 | |
793 static Position endOfPrevious(const Node& node, HTMLElement* innerEditor) | |
794 { | |
795 Node* prev = NodeTraversal::previous(node, innerEditor); | |
Yuta Kitamura
2014/07/04 06:12:35
Please don't use abbreviated word in names.
yoichio
2014/07/04 07:25:26
Done.
| |
796 if (!prev) | |
797 return Position(); | |
798 | |
799 if (prev->hasTagName(brTag)) | |
800 return Position(prev, Position::PositionIsAfterAnchor); | |
801 | |
802 if (prev->isTextNode()) { | |
803 Text* textNode = toText(prev); | |
804 return Position(textNode, textNode->length()); | |
805 } | |
806 | |
807 return Position(); | |
808 } | |
809 | |
810 static Position previousIfPositionIsAfterLineBreak(const Position& position, HTM LElement* innerEditor) | |
811 { | |
812 if (position.isNull()) | |
813 return Position(); | |
814 | |
815 // Move back if position is just after line break. | |
816 if (isHTMLBRElement(*position.anchorNode())) { | |
817 switch (position.anchorType()) { | |
818 case Position::PositionIsAfterAnchor: | |
819 return Position(position.anchorNode(), Position::PositionIsBeforeAnc hor); | |
820 case Position::PositionIsBeforeAnchor: | |
821 return previousIfPositionIsAfterLineBreak(endOfPrevious(*position.an chorNode(), innerEditor), innerEditor); | |
822 default: | |
823 ASSERT_NOT_REACHED(); | |
824 } | |
825 } else if (position.anchorNode()->isTextNode()) { | |
826 Text* textNode = toText(position.anchorNode()); | |
827 unsigned offset = position.offsetInContainerNode(); | |
828 if (textNode->length() == 0 || offset <= 0) { | |
829 return previousIfPositionIsAfterLineBreak(endOfPrevious(*position.an chorNode(), innerEditor), innerEditor); | |
830 } | |
831 | |
832 if (offset <= textNode->length() && textNode->data()[offset - 1] == '\n' ) { | |
833 return Position(textNode, offset - 1); | |
834 } | |
835 } | |
836 | |
837 return position; | |
838 } | |
839 | |
840 static inline Position startOfInnerText(const HTMLTextFormControlElement* textFo rmControl) | |
841 { | |
842 return Position(textFormControl->innerEditorElement(), 0, Position::Position IsOffsetInAnchor); | |
843 } | |
844 | |
845 Position HTMLTextFormControlElement::startOfSentence(const Position& position) | |
846 { | |
847 HTMLTextFormControlElement* textFormControl = enclosingTextFormControl(posit ion); | |
848 ASSERT(textFormControl); | |
849 | |
850 HTMLElement* innerEditor = textFormControl->innerEditorElement(); | |
851 if (!innerEditor->childNodes()->length()) | |
852 return startOfInnerText(textFormControl); | |
853 | |
854 const Position innerPosition = position.anchorNode() == innerEditor ? innerN odePosition(position) : position; | |
855 const Position pivotPosition = previousIfPositionIsAfterLineBreak(innerPosit ion, innerEditor); | |
856 if (pivotPosition.isNull()) | |
857 return startOfInnerText(textFormControl); | |
858 | |
859 for (Node* node = pivotPosition.anchorNode(); node; node = NodeTraversal::pr evious(*node, innerEditor)) { | |
860 bool isPivotNode = (node == pivotPosition.anchorNode()); | |
861 | |
862 if (node->isTextNode()) { | |
863 Text* textNode = toText(node); | |
864 int lastLineBreak = findLastLineBreak(*textNode, isPivotNode ? pivot Position.offsetInContainerNode() - 1 : (int)textNode->length() - 1); | |
865 if (lastLineBreak >= 0) | |
866 return Position(textNode, lastLineBreak + 1); | |
867 } else if (isHTMLBRElement(node) && (!isPivotNode || pivotPosition.ancho rType() == Position::PositionIsAfterAnchor)) { | |
868 return Position(node, Position::PositionIsAfterAnchor); | |
869 } | |
870 } | |
871 return startOfInnerText(textFormControl); | |
872 } | |
873 | |
874 static int findFirstLineBreak(const Text& text, int offset) | |
875 { | |
876 for (; (unsigned)offset < text.length(); ++offset) { | |
877 if (text.data()[offset] == '\n') | |
878 return offset; | |
879 } | |
880 return -1; | |
881 } | |
882 | |
883 static Position endOfInnerText(const HTMLTextFormControlElement* textFormControl ) | |
884 { | |
885 HTMLElement* innerEditor = textFormControl->innerEditorElement(); | |
886 return Position(innerEditor, innerEditor->childNodes()->length(), Position:: PositionIsOffsetInAnchor); | |
887 } | |
888 | |
889 Position HTMLTextFormControlElement::endOfSentence(const Position& position) | |
890 { | |
891 HTMLTextFormControlElement* textFormControl = enclosingTextFormControl(posit ion); | |
892 ASSERT(textFormControl); | |
893 | |
894 HTMLElement* innerEditor = textFormControl->innerEditorElement(); | |
895 if (!innerEditor->childNodes()->length()) | |
896 return startOfInnerText(textFormControl); | |
897 | |
898 const Position pivotPosition = position.anchorNode() == innerEditor ? innerN odePosition(position) : position; | |
899 if (pivotPosition.isNull()) | |
900 return startOfInnerText(textFormControl); | |
901 | |
902 for (Node* node = pivotPosition.anchorNode(); node; node = NodeTraversal::ne xt(*node, innerEditor)) { | |
903 bool isPivotNode = (node == pivotPosition.anchorNode()); | |
904 | |
905 if (node->isTextNode()) { | |
906 Text* textNode = toText(node); | |
907 int firstLineBreak = findFirstLineBreak(*textNode, isPivotNode ? piv otPosition.offsetInContainerNode() : 0); | |
908 if (firstLineBreak >= 0) | |
909 return Position(textNode, firstLineBreak + 1); | |
910 } else if (isHTMLBRElement(node)) { | |
911 return Position(node, Position::PositionIsAfterAnchor); | |
912 } | |
913 } | |
914 return endOfInnerText(textFormControl); | |
915 } | |
916 | |
662 } // namespace Webcore | 917 } // namespace Webcore |
OLD | NEW |