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--HG-- rename : accessible/src/base/nsNameUtils.cpp => accessible/src/base/nsTextEquivUtils.cpp rename : accessible/src/base/nsNameUtils.h => accessible/src/base/nsTextEquivUtils.h
213 lines
7.9 KiB
XML
213 lines
7.9 KiB
XML
<?xml version="1.0"?>
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<!--
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This XML file is used to create sequence of accessible name tests. It consist of
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two sections. The first section 'ruledfn' declares name computation rules.
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The second section 'rulesample' defines markup samples we need to check name
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computation rules for.
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Section 'ruledfn' consist of 'ruleset' elements. Every 'ruleset' element is
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presented by 'rule' elements so that sequence of 'rule' elements gives the
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sequence of name computations rules. Every 'rule' element can be one of four
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types.
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* name is equal to the value of attribute presented on the element. Example,
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'aria-label' attribute. In this case 'rule' element has 'attr' attribute
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pointing to attribute name and 'type' attribute with 'string' value. For
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example, <rule attr="aria-label" type="string"/>.
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* name is calculated from elements that are pointed to by attribute value on
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the element. Example is 'aria-labelledby'. In this case 'rule' element
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has 'attr' attribute holding the sequence of IDs of elements used to
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compute the name, in addition the 'rule' element has 'type' attribute with
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'ref' value. For example, <rule attr="aria-labelledby" type="ref"/>.
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* name is calculated from another element. Example, html:label@for element.
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In this case 'rule' element has 'elm' and 'elmattr' attributes. These
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attributes are used to find an element by tagname and attribute with value
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equaled to ID of the element. For example, <rule elm="label" elmattr="for"/>.
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* name is computed from subtree. Example, html:button. In this case 'rule'
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element has 'fromsubtree' attribute with 'true' value. For example,
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<rule fromsubtree="true"/>
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Section 'rulesample' provides set of markup samples ('markup' elements). Every
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'markup' element contains an element that accessible name will be computed for
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(let's call it test element). In addition the 'markup' element contains some
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other elements from native markup used in name calculation process for test
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element. Test element is pointed to by 'ref' attribute on 'markup' element.
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Also 'markup' element has 'ruleset' attribute to indicate ruleset for the test
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element.
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How does it work? Let's consider simple example:
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<ruledfn>
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<ruleset id="aria">
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<rule attr="aria-label" type="string"/>
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<rule attr="aria-labelledby" type="ref"/>
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</ruleset>
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</ruledfn>
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<rulesample>
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<markup ref="html:div" ruleset="aria">
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<html:span id="label" a11yname="test2">test2</html:span>
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<html:div aria-label="test1"
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aria-labelledby="label">it's a div</html:div>
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</markup>
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</rulesample>
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Initially 'markup' element holds markup for all rules specified by 'ruleset'
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attribute. This allows us to check if the sequence of name computation rules
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is correct. Here 'ruleset' element defines two rules. We get the first rule
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which means accesible name is computed from value of 'aria-label' attribute.
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Then we check accessible name for the test element and remove 'aria-label'
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attribute. After we get the second rule which means we should get IDs from
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'aria-labelledby' attribute and compose accessible name from values of
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'a11yname' attributes (that are supposed to give the desired name for each
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element that is being pointed to by aria-labelledby). Check accessible name
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and finish test.
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-->
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<rules xmlns:html="http://www.w3.org/1999/xhtml"
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xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<ruledfn>
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<!-- bricks -->
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<ruleset id="aria">
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<rule attr="aria-label" type="string"/>
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<rule attr="aria-labelledby" type="ref"/>
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</ruleset>
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<ruleset id="htmlctrl_start">
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<ruleset ref="aria"/>
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<rule elm="label" elmattr="for"/>
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<rule fromsubtree="true"/>
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</ruleset>
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<ruleset id="htmlctrl_end">
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<rule attr="title" type="string"/>
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</ruleset>
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<ruleset id="htmlelm_start">
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<ruleset ref="aria"/>
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<rule elm="label" elmattr="for"/>
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</ruleset>
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<ruleset id="htmlelm_end">
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<rule attr="title" type="string"/>
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</ruleset>
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<!-- general -->
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<ruleset id="htmlctrl">
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<ruleset ref="htmlctrl_start"/>
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<ruleset ref="htmlctrl_end"/>
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</ruleset>
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<ruleset id="htmlelm">
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<ruleset ref="htmlelm_start"/>
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<ruleset ref="htmlelm_end"/>
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</ruleset>
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<!-- specific -->
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<ruleset id="htmlinputbutton">
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<ruleset ref="htmlelm_start"/>
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<rule attr="value" type="string"/>
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<rule attr="alt" type="string"/>
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<rule attr="src" type="string"/>
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<rule attr="data" type="string"/>
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<ruleset ref="htmlelm_end"/>
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</ruleset>
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<ruleset id="htmloption">
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<ruleset ref="aria"/>
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<rule attr="label" type="string"/>
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<rule fromsubtree="true"/>
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<rule attr="title" type="string"/>
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</ruleset>
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</ruledfn>
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<rulesample>
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<markup ref="html:button" ruleset="htmlctrl">
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<html:span id="l1" a11yname="test2">test2</html:span>
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<html:span id="l2" a11yname="test3">test3</html:span>
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<html:label for="btn" a11yname="test4">test4</html:label>
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<html:button id="btn"
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aria-label="test1"
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aria-labelledby="l1 l2"
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title="test5"
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a11yname="press me">press me</html:button>
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</markup>
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<markup ref="html:input" ruleset="htmlinputbutton">
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<html:span id="l1" a11yname="test2">test2</html:span>
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<html:span id="l2" a11yname="test3">test3</html:span>
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<html:label for="btn" a11yname="test4">test4</html:label>
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<html:input id="btn"
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type="button"
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aria-label="test1"
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aria-labelledby="l1 l2"
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value="test5"
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alt="test6"
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src="test7"
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data="test8"
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title="test9"/>
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</markup>
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<markup ref="html:select/html:option[1]" ruleset="htmloption">
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<html:span id="l1" a11yname="test2">test2</html:span>
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<html:span id="l2" a11yname="test3">test3</html:span>
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<html:select>
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<html:option id="opt"
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aria-label="test1"
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aria-labelledby="l1 l2"
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label="test4"
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title="test5"
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a11yname="option1">option1</html:option>
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<html:option>option2</html:option>
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</html:select>
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</markup>
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<markup ref="html:table/html:tr/html:td" ruleset="htmlelm">
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<html:span id="l1" a11yname="test2">test2</html:span>
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<html:span id="l2" a11yname="test3">test3</html:span>
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<html:label for="tc" a11yname="test4">test4</html:label>
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<html:table>
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<html:tr>
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<html:td id="tc"
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aria-label="test1"
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aria-labelledby="l1 l2"
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title="test5">
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<html:p>This is a paragraph</html:p>
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<html:a href="#">This is a link</html:a>
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<html:ul>
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<html:li>This is a list</html:li>
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</html:ul>
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</html:td>
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</html:tr>
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</html:table>
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</markup>
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<markup ref="html:table/html:tr/html:td" ruleset="htmlctrl">
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<html:span id="l1" a11yname="test2">test2</html:span>
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<html:span id="l2" a11yname="test3">test3</html:span>
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<html:label for="gc" a11yname="test4">test4</html:label>
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<html:table>
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<html:tr>
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<html:td id="gc"
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role="gridcell"
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aria-label="test1"
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aria-labelledby="l1 l2"
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a11yname="This is a paragraph This is a link • Listitem1 • Listitem2"
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title="This is a paragraph This is a link This is a list">
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<html:p>This is a paragraph</html:p>
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<html:a href="#">This is a link</html:a>
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<html:ul>
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<html:li>Listitem1</html:li>
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<html:li>Listitem2</html:li>
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</html:ul>
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</html:td>
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</html:tr>
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</html:table>
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</markup>
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</rulesample>
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</rules>
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