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| 1 /* | |
| 2 * Copyright (C) 2013, Google 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 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
| 14 * its contributors may be used to endorse or promote products derived | |
| 15 * from this software without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include "config.h" | |
| 30 #include "core/accessibility/AXInlineTextBox.h" | |
| 31 | |
| 32 #include "core/accessibility/AXObjectCacheImpl.h" | |
| 33 #include "core/dom/Range.h" | |
| 34 #include "core/rendering/RenderText.h" | |
| 35 #include "platform/LayoutUnit.h" | |
| 36 | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 using namespace HTMLNames; | |
| 41 | |
| 42 AXInlineTextBox::AXInlineTextBox(PassRefPtr<AbstractInlineTextBox> inlineTextBox
) | |
| 43 : m_inlineTextBox(inlineTextBox) | |
| 44 { | |
| 45 RenderText* renderText = m_inlineTextBox->renderText(); | |
| 46 m_axObjectCache = toAXObjectCacheImpl(renderText->document().axObjectCache()
); | |
| 47 } | |
| 48 | |
| 49 AXInlineTextBox::~AXInlineTextBox() | |
| 50 { | |
| 51 if (m_axObjectCache && m_inlineTextBox) | |
| 52 m_axObjectCache->remove(m_inlineTextBox.get()); | |
| 53 } | |
| 54 | |
| 55 PassRefPtr<AXInlineTextBox> AXInlineTextBox::create(PassRefPtr<AbstractInlineTex
tBox> inlineTextBox) | |
| 56 { | |
| 57 return adoptRef(new AXInlineTextBox(inlineTextBox)); | |
| 58 } | |
| 59 | |
| 60 void AXInlineTextBox::init() | |
| 61 { | |
| 62 } | |
| 63 | |
| 64 void AXInlineTextBox::detach() | |
| 65 { | |
| 66 m_inlineTextBox = nullptr; | |
| 67 m_axObjectCache = 0; | |
| 68 AXObject::detach(); | |
| 69 } | |
| 70 | |
| 71 LayoutRect AXInlineTextBox::elementRect() const | |
| 72 { | |
| 73 if (!m_inlineTextBox) | |
| 74 return LayoutRect(); | |
| 75 | |
| 76 return m_inlineTextBox->bounds(); | |
| 77 } | |
| 78 | |
| 79 bool AXInlineTextBox::computeAccessibilityIsIgnored() const | |
| 80 { | |
| 81 if (AXObject* parent = parentObject()) | |
| 82 return parent->accessibilityIsIgnored(); | |
| 83 | |
| 84 return false; | |
| 85 } | |
| 86 | |
| 87 void AXInlineTextBox::textCharacterOffsets(Vector<int>& offsets) const | |
| 88 { | |
| 89 if (!m_inlineTextBox) | |
| 90 return; | |
| 91 | |
| 92 unsigned len = m_inlineTextBox->len(); | |
| 93 Vector<float> widths; | |
| 94 m_inlineTextBox->characterWidths(widths); | |
| 95 ASSERT(widths.size() == len); | |
| 96 offsets.resize(len); | |
| 97 | |
| 98 float widthSoFar = 0; | |
| 99 for (unsigned i = 0; i < len; i++) { | |
| 100 widthSoFar += widths[i]; | |
| 101 offsets[i] = lroundf(widthSoFar); | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 void AXInlineTextBox::wordBoundaries(Vector<PlainTextRange>& words) const | |
| 106 { | |
| 107 if (!m_inlineTextBox) | |
| 108 return; | |
| 109 | |
| 110 Vector<AbstractInlineTextBox::WordBoundaries> wordBoundaries; | |
| 111 m_inlineTextBox->wordBoundaries(wordBoundaries); | |
| 112 words.resize(wordBoundaries.size()); | |
| 113 for (unsigned i = 0; i < wordBoundaries.size(); i++) | |
| 114 words[i] = PlainTextRange(wordBoundaries[i].startIndex, wordBoundaries[i
].endIndex - wordBoundaries[i].startIndex); | |
| 115 } | |
| 116 | |
| 117 String AXInlineTextBox::stringValue() const | |
| 118 { | |
| 119 if (!m_inlineTextBox) | |
| 120 return String(); | |
| 121 | |
| 122 return m_inlineTextBox->text(); | |
| 123 } | |
| 124 | |
| 125 AXObject* AXInlineTextBox::computeParent() const | |
| 126 { | |
| 127 if (!m_inlineTextBox || !m_axObjectCache) | |
| 128 return 0; | |
| 129 | |
| 130 RenderText* renderText = m_inlineTextBox->renderText(); | |
| 131 return m_axObjectCache->getOrCreate(renderText); | |
| 132 } | |
| 133 | |
| 134 AccessibilityTextDirection AXInlineTextBox::textDirection() const | |
| 135 { | |
| 136 if (!m_inlineTextBox) | |
| 137 return AccessibilityTextDirectionLeftToRight; | |
| 138 | |
| 139 switch (m_inlineTextBox->direction()) { | |
| 140 case AbstractInlineTextBox::LeftToRight: | |
| 141 return AccessibilityTextDirectionLeftToRight; | |
| 142 case AbstractInlineTextBox::RightToLeft: | |
| 143 return AccessibilityTextDirectionRightToLeft; | |
| 144 case AbstractInlineTextBox::TopToBottom: | |
| 145 return AccessibilityTextDirectionTopToBottom; | |
| 146 case AbstractInlineTextBox::BottomToTop: | |
| 147 return AccessibilityTextDirectionBottomToTop; | |
| 148 } | |
| 149 | |
| 150 return AccessibilityTextDirectionLeftToRight; | |
| 151 } | |
| 152 | |
| 153 } // namespace blink | |
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Chromium Code Reviews
Issue 713933002:
Create Source/modules/accessibility/ and move most of core/accessibility/* into it (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master