clarify "current element" (#1460)

* in focus management, to "element being focused"
* otherwise, "the element" or "the element with xxx"
Resolves #1152

index.html

@@ -584,14 +584,14 @@ <h3>Information for User Agents</h3>
 	      <li>Set the <abbr title="Document Object Model">DOM</abbr> focus:
 		<ol>
 		  <li>If the <a class="termref">element</a> can take <abbr title="Document Object Model">DOM</abbr> focus, the <a class="termref">user agent</a> MUST set the <abbr title="Document Object Model">DOM</abbr> focus to it.</li>
-		  <li>Otherwise, if the current element has an ID and the ID is referenced by the <pref>aria-activedescendant</pref> attribute of an element that is focusable, the user agent MUST set <abbr title="Document Object Model">DOM</abbr> focus to the element that has the <pref>aria-activedescendant</pref> attribute.
+		  <li>Otherwise, if the element being focused has an ID and the ID is referenced by the <pref>aria-activedescendant</pref> attribute of an element that is focusable, the user agent MUST set <abbr title="Document Object Model">DOM</abbr> focus to the element that has the <pref>aria-activedescendant</pref> attribute.
 		  	<p class="note">An element with an ID can be referenced when it is <a>owned</a> by a container element that has the <pref>aria-activedescendant</pref> attribute or by a container element that is controlled by an element that has the <pref>aria-activedescendant</pref> attribute  (e.g. see <ref>combobox</ref>).  Otherwise the <pref>aria-activedescendant</pref> attribute reference indicates an author error.</p>
 		    <p class="note">The inability to set <abbr title="Document Object Model">DOM</abbr> focus to the containing element indicates an author error.</p>
 		  </li>
 		  <li>Otherwise, the user agent MAY attempt to set <abbr title="Document Object Model">DOM</abbr> focus to the child element itself.</li>
 		</ol>
 	      </li>
-	      <li>If the current element has an ID and is <a>owned</a> by either a container element with both an <code>aria-activedescendant</code> attribute and has <abbr title="Document Object Model">DOM</abbr> focus, or by a container element that is controlled by an element with both an <pref>aria-activedescendant</pref> attribute and has <abbr title="Document Object Model">DOM</abbr> focus, the user agent MUST set the accessibility <abbr title="Application Programming Interface">API</abbr> focused state and fire an accessibility <abbr title="Application Programming Interface">API</abbr> focus <a>event</a> on the element identified  by the value of <code>aria-activedescendant</code>.</li>
+	      <li>If the element being focused has an ID and is <a>owned</a> by either a container element with both an <code>aria-activedescendant</code> attribute and has <abbr title="Document Object Model">DOM</abbr> focus, or by a container element that is controlled by an element with both an <pref>aria-activedescendant</pref> attribute and has <abbr title="Document Object Model">DOM</abbr> focus, the user agent MUST set the accessibility <abbr title="Application Programming Interface">API</abbr> focused state and fire an accessibility <abbr title="Application Programming Interface">API</abbr> focus <a>event</a> on the element identified  by the value of <code>aria-activedescendant</code>.</li>
 	    </ol>
 	  </section>
 	</section>
@@ -10270,7 +10270,7 @@ <h2>Definitions of States and Properties (all aria-* attributes)</h2>
 		<div class="property" id="aria-controls">
 			<pdef>aria-controls</pdef>
 			<div class="property-description">
-				<p>Identifies the <a>element</a> (or elements) whose contents or presence are controlled by the current element. See related <pref>aria-owns</pref>.</p>
+				<p>Identifies the <a>element</a> (or elements) whose contents or presence are controlled by the element with aria-controls. See related <pref>aria-owns</pref>.</p>
 				<p>For example:</p>
 				<ul>
 					<li>A table of contents tree view may control the content of a neighboring document pane.</li>
@@ -10499,7 +10499,7 @@ <h2>Definitions of States and Properties (all aria-* attributes)</h2>
 			<div class="state-description">
 				<p>Indicates that the <a>element</a> is <a>perceivable</a> but disabled, so it is not editable or otherwise <a>operable</a>. See related <sref>aria-hidden</sref> and <pref>aria-readonly</pref>.</p>
 				<p>For example, irrelevant options in a radio group may be disabled. Disabled elements might not receive focus from the tab order. For some disabled elements, applications might choose not to support navigation to descendants. In addition to setting the <sref>aria-disabled</sref> attribute, authors SHOULD change the appearance (grayed out, etc.) to indicate that the item has been disabled.</p>
-				<p>The <a>state</a> of being disabled applies to the current element and all focusable descendant elements of the element on which the <sref>aria-disabled</sref> <a>attribute</a> is applied.</p>
+				<p>The <a>state</a> of being disabled applies to the element with aria-disabled and all focusable descendant elements of the element on which the <sref>aria-disabled</sref> <a>attribute</a> is applied.</p>
                 <p class="note">While <sref>aria-disabled</sref> and proper scripting can successfully disable an element with role <rref>link</rref>, fully disabling a host language equivalent can be problematic. Authors are advised not to use <sref>aria-disabled</sref> on elements that cannot be disabled through features of the host language alone.</p>
 				<p class="note" title="Usage on columnheader, rowheader and row">While <sref>aria-disabled</sref> is currently supported on <rref>columnheader</rref>, <rref>rowheader</rref>, and <rref>row</rref>, in a future version the working group plans to prohibit its use on elements with any of those three roles except when they are in the context of a <rref>grid</rref> or <rref>treegrid</rref>.</p>
 				<p class="note">This state is being deprecated as a global state in ARIA 1.2. In future versions it will only be allowed on roles where it is specifically supported.</p>
@@ -11091,7 +11091,7 @@ <h2>Definitions of States and Properties (all aria-* attributes)</h2>
 		<div class="property" id="aria-label">
 			<pdef>aria-label</pdef>
 			<div class="property-description">
-				<p>Defines a string value that labels the current element. See related <pref>aria-labelledby</pref>.</p>
+				<p>Defines a string value that labels the element. See related <pref>aria-labelledby</pref>.</p>
 				<p>The purpose of <pref>aria-label</pref> is the same as that of <pref>aria-labelledby</pref>. It provides the user with a recognizable name of the object. The most common <a>accessibility <abbr title="Application Programing Interfaces">API</abbr></a> mapping for a label is the <a>accessible name</a> property.</p>
 				<p>If the label text is available in the DOM (i.e. typically visible text content), authors SHOULD use <pref>aria-labelledby</pref> and SHOULD NOT use <pref>aria-label</pref>. There may be instances where the name of an element cannot be determined programmatically from the DOM, and there are cases where referencing DOM content is not the desired user experience. Most host languages provide an attribute that could be used to name the element (e.g., the <code>title</code> attribute in [[HTML]]), yet this could present a browser tooltip. In the cases where DOM content or a tooltip is undesirable, authors MAY set the accessible name of the element using <pref>aria-label</pref>. As required by the <a href="#textalternativecomputation">accessible name and description computation</a>, user agents give precedence to <pref>aria-labelledby</pref> over <pref>aria-label</pref> when computing the accessible name property.</p>
 			</div>
@@ -11126,7 +11126,7 @@ <h2>Definitions of States and Properties (all aria-* attributes)</h2>
 		<div class="property" id="aria-labelledby">
 			<pdef>aria-labelledby</pdef>
 			<div class="property-description">
-				<p>Identifies the <a>element</a> (or elements) that labels the current element. See related <pref>aria-describedby</pref>.</p>
+				<p>Identifies the <a>element</a> (or elements) that labels the element with aria-labelledby. See related <pref>aria-label</pref> and <pref>aria-describedby</pref>.</p>
 				<p>The purpose of <pref>aria-labelledby</pref> is the same as that of <pref>aria-label</pref>. It provides the user with a recognizable name of the object. The most common <a>accessibility <abbr title="Application Programing Interfaces">API</abbr></a> mapping for a label is the <a>accessible name</a> property.</p>
 				<p>If the interface is such that it is not possible to have a visible label on the screen, authors SHOULD use <pref>aria-label</pref> and SHOULD NOT use <pref>aria-labelledby</pref>. As required by the <a href="#textalternativecomputation">accessible name and description computation</a>, user agents give precedence to <pref>aria-labelledby</pref> over <pref>aria-label</pref> when computing the accessible name property.</p>
 				<p>The <pref>aria-labelledby</pref> attribute is similar to <pref>aria-describedby</pref> in that both reference other elements to calculate a text alternative, but a label should be concise, where a description is intended to provide more verbose information.</p>