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| 1 /* | |
| 2 * Copyright (C) 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 * | |
| 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/AXListBoxOption.h" | |
| 31 | |
| 32 #include "core/accessibility/AXObjectCacheImpl.h" | |
| 33 #include "core/html/HTMLOptionElement.h" | |
| 34 #include "core/html/HTMLSelectElement.h" | |
| 35 #include "core/rendering/RenderListBox.h" | |
| 36 | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 using namespace HTMLNames; | |
| 41 | |
| 42 AXListBoxOption::AXListBoxOption(RenderObject* renderer) | |
| 43 : AXRenderObject(renderer) | |
| 44 { | |
| 45 } | |
| 46 | |
| 47 AXListBoxOption::~AXListBoxOption() | |
| 48 { | |
| 49 } | |
| 50 | |
| 51 PassRefPtr<AXListBoxOption> AXListBoxOption::create(RenderObject* renderer) | |
| 52 { | |
| 53 return adoptRef(new AXListBoxOption(renderer)); | |
| 54 } | |
| 55 | |
| 56 bool AXListBoxOption::isEnabled() const | |
| 57 { | |
| 58 if (!node()) | |
| 59 return false; | |
| 60 | |
| 61 if (equalIgnoringCase(getAttribute(aria_disabledAttr), "true")) | |
| 62 return false; | |
| 63 | |
| 64 if (toElement(node())->hasAttribute(disabledAttr)) | |
| 65 return false; | |
| 66 | |
| 67 return true; | |
| 68 } | |
| 69 | |
| 70 bool AXListBoxOption::isSelected() const | |
| 71 { | |
| 72 return isHTMLOptionElement(node()) && toHTMLOptionElement(node())->selected(
); | |
| 73 } | |
| 74 | |
| 75 bool AXListBoxOption::isSelectedOptionActive() const | |
| 76 { | |
| 77 HTMLSelectElement* listBoxParentNode = listBoxOptionParentNode(); | |
| 78 if (!listBoxParentNode) | |
| 79 return false; | |
| 80 | |
| 81 return listBoxParentNode->activeSelectionEndListIndex() == listBoxOptionInde
x(); | |
| 82 } | |
| 83 | |
| 84 bool AXListBoxOption::computeAccessibilityIsIgnored() const | |
| 85 { | |
| 86 if (!node()) | |
| 87 return true; | |
| 88 | |
| 89 if (accessibilityIsIgnoredByDefault()) | |
| 90 return true; | |
| 91 | |
| 92 return false; | |
| 93 } | |
| 94 | |
| 95 bool AXListBoxOption::canSetSelectedAttribute() const | |
| 96 { | |
| 97 if (!isHTMLOptionElement(node())) | |
| 98 return false; | |
| 99 | |
| 100 if (toHTMLOptionElement(node())->isDisabledFormControl()) | |
| 101 return false; | |
| 102 | |
| 103 HTMLSelectElement* selectElement = listBoxOptionParentNode(); | |
| 104 if (selectElement && selectElement->isDisabledFormControl()) | |
| 105 return false; | |
| 106 | |
| 107 return true; | |
| 108 } | |
| 109 | |
| 110 String AXListBoxOption::stringValue() const | |
| 111 { | |
| 112 if (!node()) | |
| 113 return String(); | |
| 114 | |
| 115 const AtomicString& ariaLabel = getAttribute(aria_labelAttr); | |
| 116 if (!ariaLabel.isNull()) | |
| 117 return ariaLabel; | |
| 118 | |
| 119 if (isHTMLOptionElement(node())) | |
| 120 return toHTMLOptionElement(node())->text(); | |
| 121 | |
| 122 return String(); | |
| 123 } | |
| 124 | |
| 125 void AXListBoxOption::setSelected(bool selected) | |
| 126 { | |
| 127 HTMLSelectElement* selectElement = listBoxOptionParentNode(); | |
| 128 if (!selectElement) | |
| 129 return; | |
| 130 | |
| 131 if (!canSetSelectedAttribute()) | |
| 132 return; | |
| 133 | |
| 134 bool isOptionSelected = isSelected(); | |
| 135 if ((isOptionSelected && selected) || (!isOptionSelected && !selected)) | |
| 136 return; | |
| 137 | |
| 138 // Convert from the entire list index to the option index. | |
| 139 int optionIndex = selectElement->listToOptionIndex(listBoxOptionIndex()); | |
| 140 selectElement->accessKeySetSelectedIndex(optionIndex); | |
| 141 } | |
| 142 | |
| 143 HTMLSelectElement* AXListBoxOption::listBoxOptionParentNode() const | |
| 144 { | |
| 145 if (!node()) | |
| 146 return 0; | |
| 147 | |
| 148 if (isHTMLOptionElement(node())) | |
| 149 return toHTMLOptionElement(node())->ownerSelectElement(); | |
| 150 | |
| 151 return 0; | |
| 152 } | |
| 153 | |
| 154 int AXListBoxOption::listBoxOptionIndex() const | |
| 155 { | |
| 156 HTMLSelectElement* selectElement = listBoxOptionParentNode(); | |
| 157 if (!selectElement) | |
| 158 return -1; | |
| 159 | |
| 160 const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = select
Element->listItems(); | |
| 161 unsigned length = listItems.size(); | |
| 162 for (unsigned i = 0; i < length; i++) { | |
| 163 if (listItems[i] == node()) | |
| 164 return i; | |
| 165 } | |
| 166 | |
| 167 return -1; | |
| 168 } | |
| 169 | |
| 170 } // 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