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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All r
ights reserved. | 2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All r
ights reserved. |
3 * Copyright (C) 2005 Alexey Proskuryakov. | 3 * Copyright (C) 2005 Alexey Proskuryakov. |
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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23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #include "config.h" | 27 #include "config.h" |
28 #include "core/editing/TextIterator.h" | 28 #include "core/editing/TextIterator.h" |
29 | 29 |
30 #include "bindings/core/v8/ExceptionStatePlaceholder.h" | 30 #include "bindings/core/v8/ExceptionStatePlaceholder.h" |
31 #include "core/HTMLNames.h" | 31 #include "core/HTMLNames.h" |
32 #include "core/dom/Document.h" | 32 #include "core/dom/Document.h" |
| 33 #include "core/dom/FirstLetterPseudoElement.h" |
33 #include "core/dom/NodeTraversal.h" | 34 #include "core/dom/NodeTraversal.h" |
34 #include "core/dom/shadow/ShadowRoot.h" | 35 #include "core/dom/shadow/ShadowRoot.h" |
35 #include "core/editing/VisiblePosition.h" | 36 #include "core/editing/VisiblePosition.h" |
36 #include "core/editing/VisibleUnits.h" | 37 #include "core/editing/VisibleUnits.h" |
37 #include "core/editing/htmlediting.h" | 38 #include "core/editing/htmlediting.h" |
38 #include "core/frame/FrameView.h" | 39 #include "core/frame/FrameView.h" |
39 #include "core/html/HTMLElement.h" | 40 #include "core/html/HTMLElement.h" |
40 #include "core/html/HTMLTextFormControlElement.h" | 41 #include "core/html/HTMLTextFormControlElement.h" |
41 #include "core/rendering/InlineTextBox.h" | 42 #include "core/rendering/InlineTextBox.h" |
42 #include "core/rendering/RenderImage.h" | 43 #include "core/rendering/RenderImage.h" |
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754 } | 755 } |
755 if (!m_textBox && m_remainingTextBox) { | 756 if (!m_textBox && m_remainingTextBox) { |
756 m_textBox = m_remainingTextBox; | 757 m_textBox = m_remainingTextBox; |
757 m_remainingTextBox = 0; | 758 m_remainingTextBox = 0; |
758 m_firstLetterText = nullptr; | 759 m_firstLetterText = nullptr; |
759 m_offset = 0; | 760 m_offset = 0; |
760 handleTextBox(); | 761 handleTextBox(); |
761 } | 762 } |
762 } | 763 } |
763 | 764 |
764 static inline RenderText* firstRenderTextInFirstLetter(RenderBoxModelObject* fir
stLetter) | |
765 { | |
766 if (!firstLetter) | |
767 return 0; | |
768 | |
769 // FIXME: Should this check descendent objects? | |
770 for (RenderObject* current = firstLetter->slowFirstChild(); current; current
= current->nextSibling()) { | |
771 if (current->isText()) | |
772 return toRenderText(current); | |
773 } | |
774 return 0; | |
775 } | |
776 | |
777 void TextIterator::handleTextNodeFirstLetter(RenderTextFragment* renderer) | 765 void TextIterator::handleTextNodeFirstLetter(RenderTextFragment* renderer) |
778 { | 766 { |
779 if (renderer->firstLetter()) { | |
780 RenderBoxModelObject* r = renderer->firstLetter(); | |
781 if (r->style()->visibility() != VISIBLE && !m_ignoresStyleVisibility) | |
782 return; | |
783 if (RenderText* firstLetter = firstRenderTextInFirstLetter(r)) { | |
784 m_handledFirstLetter = true; | |
785 m_remainingTextBox = m_textBox; | |
786 m_textBox = firstLetter->firstTextBox(); | |
787 m_sortedTextBoxes.clear(); | |
788 m_firstLetterText = firstLetter; | |
789 } | |
790 } | |
791 m_handledFirstLetter = true; | 767 m_handledFirstLetter = true; |
| 768 |
| 769 if (!renderer->isRemainingTextRenderer()) |
| 770 return; |
| 771 |
| 772 FirstLetterPseudoElement* firstLetterElement = renderer->firstLetterPseudoEl
ement(); |
| 773 if (!firstLetterElement) |
| 774 return; |
| 775 |
| 776 RenderObject* pseudoRenderer = firstLetterElement->renderer(); |
| 777 if (pseudoRenderer->style()->visibility() != VISIBLE && !m_ignoresStyleVisib
ility) |
| 778 return; |
| 779 |
| 780 RenderObject* firstLetter = pseudoRenderer->slowFirstChild(); |
| 781 ASSERT(firstLetter); |
| 782 |
| 783 m_remainingTextBox = m_textBox; |
| 784 m_textBox = toRenderText(firstLetter)->firstTextBox(); |
| 785 m_sortedTextBoxes.clear(); |
| 786 m_firstLetterText = toRenderText(firstLetter); |
792 } | 787 } |
793 | 788 |
794 bool TextIterator::handleReplacedElement() | 789 bool TextIterator::handleReplacedElement() |
795 { | 790 { |
796 if (m_fullyClippedStack.top()) | 791 if (m_fullyClippedStack.top()) |
797 return false; | 792 return false; |
798 | 793 |
799 RenderObject* renderer = m_node->renderer(); | 794 RenderObject* renderer = m_node->renderer(); |
800 if (renderer->style()->visibility() != VISIBLE && !m_ignoresStyleVisibility) | 795 if (renderer->style()->visibility() != VISIBLE && !m_ignoresStyleVisibility) |
801 return false; | 796 return false; |
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843 m_textLength = 0; | 838 m_textLength = 0; |
844 m_lastCharacter = 0; | 839 m_lastCharacter = 0; |
845 | 840 |
846 return true; | 841 return true; |
847 } | 842 } |
848 | 843 |
849 bool TextIterator::hasVisibleTextNode(RenderText* renderer) | 844 bool TextIterator::hasVisibleTextNode(RenderText* renderer) |
850 { | 845 { |
851 if (renderer->style()->visibility() == VISIBLE) | 846 if (renderer->style()->visibility() == VISIBLE) |
852 return true; | 847 return true; |
853 if (renderer->isTextFragment()) { | 848 |
854 RenderTextFragment* fragment = toRenderTextFragment(renderer); | 849 if (!renderer->isTextFragment()) |
855 if (fragment->firstLetter() && fragment->firstLetter()->style()->visibil
ity() == VISIBLE) | 850 return false; |
856 return true; | 851 |
857 } | 852 RenderTextFragment* fragment = toRenderTextFragment(renderer); |
| 853 if (!fragment->isRemainingTextRenderer()) |
| 854 return false; |
| 855 |
| 856 RenderObject* pseudoElementRenderer = fragment->firstLetterPseudoElement()->
renderer(); |
| 857 if (pseudoElementRenderer && pseudoElementRenderer->style()->visibility() ==
VISIBLE) |
| 858 return true; |
| 859 |
858 return false; | 860 return false; |
859 } | 861 } |
860 | 862 |
861 static bool shouldEmitTabBeforeNode(Node* node) | 863 static bool shouldEmitTabBeforeNode(Node* node) |
862 { | 864 { |
863 RenderObject* r = node->renderer(); | 865 RenderObject* r = node->renderer(); |
864 | 866 |
865 // Table cells are delimited by tabs. | 867 // Table cells are delimited by tabs. |
866 if (!r || !isTableCell(node)) | 868 if (!r || !isTableCell(node)) |
867 return false; | 869 return false; |
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1521 } | 1523 } |
1522 | 1524 |
1523 if (!m_shouldHandleFirstLetter && offsetAfterFirstLetter < m_offset) { | 1525 if (!m_shouldHandleFirstLetter && offsetAfterFirstLetter < m_offset) { |
1524 m_shouldHandleFirstLetter = true; | 1526 m_shouldHandleFirstLetter = true; |
1525 offsetInNode = offsetAfterFirstLetter; | 1527 offsetInNode = offsetAfterFirstLetter; |
1526 return renderer; | 1528 return renderer; |
1527 } | 1529 } |
1528 | 1530 |
1529 m_shouldHandleFirstLetter = false; | 1531 m_shouldHandleFirstLetter = false; |
1530 offsetInNode = 0; | 1532 offsetInNode = 0; |
1531 RenderText* firstLetterRenderer = firstRenderTextInFirstLetter(fragment->fir
stLetter()); | 1533 |
| 1534 ASSERT(fragment->isRemainingTextRenderer()); |
| 1535 ASSERT(fragment->firstLetterPseudoElement()); |
| 1536 |
| 1537 RenderObject* pseudoElementRenderer = fragment->firstLetterPseudoElement()->
renderer(); |
| 1538 ASSERT(pseudoElementRenderer); |
| 1539 ASSERT(pseudoElementRenderer->slowFirstChild()); |
| 1540 RenderText* firstLetterRenderer = toRenderText(pseudoElementRenderer->slowFi
rstChild()); |
1532 | 1541 |
1533 m_offset = firstLetterRenderer->caretMaxOffset(); | 1542 m_offset = firstLetterRenderer->caretMaxOffset(); |
1534 m_offset += collapsedSpaceLength(firstLetterRenderer, m_offset); | 1543 m_offset += collapsedSpaceLength(firstLetterRenderer, m_offset); |
1535 | 1544 |
1536 return firstLetterRenderer; | 1545 return firstLetterRenderer; |
1537 } | 1546 } |
1538 | 1547 |
1539 bool SimplifiedBackwardsTextIterator::handleReplacedElement() | 1548 bool SimplifiedBackwardsTextIterator::handleReplacedElement() |
1540 { | 1549 { |
1541 unsigned index = m_node->nodeIndex(); | 1550 unsigned index = m_node->nodeIndex(); |
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2421 resultEnd = collapseTo; | 2430 resultEnd = collapseTo; |
2422 return; | 2431 return; |
2423 } | 2432 } |
2424 } | 2433 } |
2425 | 2434 |
2426 CharacterIterator computeRangeIterator(inputStart, inputEnd, iteratorFlagsFo
rFindPlainText); | 2435 CharacterIterator computeRangeIterator(inputStart, inputEnd, iteratorFlagsFo
rFindPlainText); |
2427 calculateCharacterSubrange(computeRangeIterator, matchStart, matchLength, re
sultStart, resultEnd); | 2436 calculateCharacterSubrange(computeRangeIterator, matchStart, matchLength, re
sultStart, resultEnd); |
2428 } | 2437 } |
2429 | 2438 |
2430 } | 2439 } |
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