[] (0) WF2: <label>.

git-svn-id: http://svn.whatwg.org/webapps@2191 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

@@ -26582,6 +26582,11 @@ function AddCloud(data, x, y) { ... }</pre>
     title="">form</var>.elements</a></code> and <code
     title=dom-fieldset-elements><a href="#elements4"><var
     title="">fieldset</var>.elements</a></code> APIs.
+
+   <dt><dfn id=labelable title=category-label>Labelable</dfn>
+
+   <dd>Denotes elements that can be associated with <code><a
+    href="#label">label</a></code> elements.
   </dl>
 
   <p>In addition, some <a href="#submittable"
@@ -26858,37 +26863,93 @@ function AddCloud(data, x, y) { ... }</pre>
 
    <dt>Content model:
 
-   <dd><a href="#phrasing0">Phrasing content</a>.
+   <dd>If the element has a <code title=attr-label-for><a
+    href="#for">for</a></code> attribute: <a href="#phrasing0">Phrasing
+    content</a>, but with no descendant <a href="#labelable"
+    title=category-label>labelable form-associated elements</a> or <code><a
+    href="#label">label</a></code> elements.
+
+   <dd>Otherwise: <a href="#phrasing0">Phrasing content</a>, but with at most
+    one descendant <a href="#labelable" title=category-label>labelable
+    form-associated element</a>, and with no descendant <code><a
+    href="#label">label</a></code> elements.
 
    <dt>Element-specific attributes:
 
    <dd><code title=attr-fae-form><a href="#form0">form</a></code>
 
-   <dd><code title=attr-label-for>for</code>
+   <dd><code title=attr-label-for><a href="#for">for</a></code>
 
    <dt>DOM interface:
 
    <dd>
     <pre
      class=idl>interface <dfn id=htmllabelelement>HTMLLabelElement</dfn> : <a href="#htmlelement">HTMLElement</a> {
   readonly attribute <a href="#htmlformelement">HTMLFormElement</a> <a href="#form1" title=dom-fae-form>form</a>;
-           attribute DOMString <span title=dom-label-htmlFor>htmlFor</span>;
-  readonly attribute <a href="#htmlelement">HTMLElement</a> <span title=dom-label-control>control</span>;
+           attribute DOMString <a href="#htmlfor" title=dom-label-htmlFor>htmlFor</a>;
+  readonly attribute <a href="#htmlelement">HTMLElement</a> <a href="#control" title=dom-label-control>control</a>;
 };</pre>
   </dl>
 
-  <p class=big-issue>...</p>
-  <!--XXX
-what does <label> _mean_? how about an empty one, one which contains
-more than one control, no controls?
--->
+  <p>The <code><a href="#label">label</a></code> represents a caption in a
+   user interface. The caption can be associated with a specific form
+   control, known as the <code><a href="#label">label</a></code> element's
+   <dfn id=labeled>labeled control</dfn>.
+
+  <p>Unless otherwise specified by the following rules, a <code><a
+   href="#label">label</a></code> element has no <a href="#labeled">labeled
+   control</a>.
+
+  <p>The <dfn id=for title=attr-label-for><code>for</code></dfn> attribute
+   may be specified to indicate a form control with which the caption is to
+   be associated. If the attribute is specified, the attribute's value must
+   be the ID of a <a href="#labelable" title=category-label>labelable
+   form-associated element</a> in the same <code>Document</code> as the
+   <code><a href="#label">label</a></code> element. If the attribute is
+   specified and there is an element in the <code>Document</code> whose ID is
+   equal to the value of the <code title=attr-label-for><a
+   href="#for">for</a></code> attribute, and the first such element is a <a
+   href="#labelable" title=category-label>labelable form-associated
+   element</a>, then that element is the <code><a
+   href="#label">label</a></code> element's <a href="#labeled">labeled
+   control</a>.
+
+  <p>If the <code title=attr-label-for><a href="#for">for</a></code>
+   attribute is not specified, but the <code><a
+   href="#label">label</a></code> element has a <span>labelable
+   form-associated element</span> descendant, then the first such descendant
+   in <a href="#tree-order">tree order</a> is the <code><a
+   href="#label">label</a></code> element's <a href="#labeled">labeled
+   control</a>.
 
   <p>The <code title=attr-fae-form><a href="#form0">form</a></code> attribute
    is used to explicitly associate the <code><a
    href="#label">label</a></code> element with its <a href="#form-owner">form
    owner</a>. The <code title=attr-fe-name><a href="#name11">name</a></code>
    attribute represents the element's name.
 
+  <p>The <dfn id=htmlfor title=dom-label-htmlFor><code>htmlFor</code></dfn>
+   DOM attribute must <a href="#reflect">reflect</a> the <code
+   title=attr-label-for><a href="#for">for</a></code> content attribute.
+
+  <p>The <dfn id=control title=dom-label-control><code>control</code></dfn>
+   DOM attribute must return the <code><a href="#label">label</a></code>
+   element's <a href="#labeled">labeled control</a>, if any, or null if there
+   isn't one.
+
+  <hr>
+
+  <p><span title="labelable form-associated element">Labelable
+   form-associated elements</span> have a <code>NodeList</code> object
+   associated with them that represents the list of <code><a
+   href="#label">label</a></code> elements, in <a href="#tree-order">tree
+   order</a>, whose <a href="#labeled">labeled control</a> is the element in
+   question. The <dfn id=labels
+   title=dom-lfe-labels><code>labels</code></dfn> DOM attribute of <span
+   title="labelable form-associated element">labelable form-associated
+   elements</span>, on getting, must return that <code>NodeList</code>
+   object.
+
   <h4 id=the-input><span class=secno>4.9.4 </span>The <dfn
    id=input0><code>input</code></dfn> element</h4>
 
@@ -26900,6 +26961,7 @@ more than one control, no controls?
    <dd><a href="#interactive1">Interactive content</a>.
 
    <dd><a href="#listed" title=category-listed>Listed</a>, <a
+    href="#labelable" title=category-label>labelable</a>, <a
     href="#submittable" title=category-submit>submittable</a>, and <a
     href="#resettable" title=category-reset>resettable</a> <a
     href="#form-associated">form-associated element</a>.
@@ -27000,7 +27062,7 @@ more than one control, no controls?
            attribute float <span title=dom-input-valueAsNumber>valueAsNumber</span>;
   readonly attribute <a href="#htmloptionelement">HTMLOptionElement</a> <span title=dom-input-selectedOption>selectedOption</span>;
 
-  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <span title=dom-input-labels>labels</span>;
+  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <a href="#labels" title=dom-lfe-labels>labels</a>;
 
   void <span title=dom-input-stepUp>stepUp</span>(in int n);
   void <span title=dom-input-stepDown>stepDown</span>(in int n);
@@ -27055,7 +27117,8 @@ rel="" on submit buttons?
 
    <dd><a href="#interactive1">Interactive content</a>.
 
-   <dd><a href="#listed" title=category-listed>Listed</a> and <a
+   <dd><a href="#listed" title=category-listed>Listed</a>, <a
+    href="#labelable" title=category-label>labelable</a>, and <a
     href="#submittable" title=category-submit>submittable</a> <a
     href="#form-associated">form-associated element</a>.
 
@@ -27105,7 +27168,7 @@ rel="" on submit buttons?
            attribute DOMString <span title=dom-button-type>type</span>;
            attribute DOMString <span title=dom-button-value>value</span>;
 
-  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <span title=dom-button-labels>labels</span>;
+  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <a href="#labels" title=dom-lfe-labels>labels</a>;
 
   readonly attribute boolean <a href="#willvalidate" title=dom-cva-willValidate>willValidate</a>;
   readonly attribute <span>ValidityState</span> <a href="#validity" title=dom-cva-validity>validity</a>;
@@ -27145,6 +27208,7 @@ rel="" on submit buttons?
    <dd><a href="#interactive1">Interactive content</a>.
 
    <dd><a href="#listed" title=category-listed>Listed</a>, <a
+    href="#labelable" title=category-label>labelable</a>, <a
     href="#submittable" title=category-submit>submittable</a>, and <a
     href="#resettable" title=category-reset>resettable</a> <a
     href="#form-associated">form-associated element</a>.
@@ -27194,7 +27258,7 @@ rel="" on submit buttons?
            attribute long <span title=dom-select-selectedIndex>selectedIndex</span>;
            attribute DOMString <span title=dom-select-value>value</span>;
 
-  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <span title=dom-select-labels>labels</span>;
+  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <a href="#labels" title=dom-lfe-labels>labels</a>;
 
   void <span title=dom-select-add>add</span>(in <a href="#htmlelement">HTMLElement</a> element, in <a href="#htmlelement">HTMLElement</a> before);
   void <span title=dom-select-remove>remove</span>(in long index);
@@ -27371,6 +27435,7 @@ interface <dfn id=htmloptionelement>HTMLOptionElement</dfn> : <a href="#htmlelem
    <dd><a href="#interactive1">Interactive content</a>.
 
    <dd><a href="#listed" title=category-listed>Listed</a>, <a
+    href="#labelable" title=category-label>labelable</a>, <a
     href="#submittable" title=category-submit>submittable</a>, and <a
     href="#resettable" title=category-reset>resettable</a> <a
     href="#form-associated">form-associated element</a>.
@@ -27434,7 +27499,7 @@ interface <dfn id=htmloptionelement>HTMLOptionElement</dfn> : <a href="#htmlelem
            attribute DOMString <span title=dom-textarea-defaultValue>defaultValue</span>;
            attribute DOMString <span title=dom-textarea-value>value</span>;
 
-  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <span title=dom-textarea-labels>labels</span>;
+  readonly attribute <a href="#htmlcollection0">HTMLCollection</a> <a href="#labels" title=dom-lfe-labels>labels</a>;
 
   readonly attribute boolean <a href="#willvalidate" title=dom-cva-willValidate>willValidate</a>;
   readonly attribute <span>ValidityState</span> <a href="#validity" title=dom-cva-validity>validity</a>;

source

@@ -23940,6 +23940,11 @@ function AddCloud(data, x, y) { ... }</pre>
    and <code title="dom-fieldset-elements"><var
    title="">fieldset</var>.elements</code> APIs.</dd>
 
+   <dt><dfn title="category-label">Labelable</dfn></dt>
+
+   <dd>Denotes elements that can be associated with <code>label</code>
+   elements.</dd>
+
   </dl>
 
   <p>In addition, some <span
@@ -24172,7 +24177,8 @@ function AddCloud(data, x, y) { ... }</pre>
    <dt>Contexts in which this element may be used:</dt>
    <dd>Where <span>phrasing content</span> is expected.</dd>
    <dt>Content model:</dt>
-   <dd><span>Phrasing content</span>.</dd>
+   <dd>If the element has a <code title="attr-label-for">for</code> attribute: <span>Phrasing content</span>, but with no descendant <span title="category-label">labelable form-associated elements</span> or <code>label</code> elements.</dd>
+   <dd>Otherwise: <span>Phrasing content</span>, but with at most one descendant <span title="category-label">labelable form-associated element</span>, and with no descendant <code>label</code> elements.</dd>
    <dt>Element-specific attributes:</dt>
    <dd><code title="attr-fae-form">form</code></dd>
    <dd><code title="attr-label-for">for</code></dd>
@@ -24186,17 +24192,58 @@ function AddCloud(data, x, y) { ... }</pre>
    </dd> 
   </dl>
 
-  <p class="big-issue">...</p>
-<!--XXX
-what does <label> _mean_? how about an empty one, one which contains
-more than one control, no controls?
--->
+  <p>The <code>label</code> represents a caption in a user
+  interface. The caption can be associated with a specific form
+  control, known as the <code>label</code> element's <dfn>labeled
+  control</dfn>.</p>
+
+  <p>Unless otherwise specified by the following rules, a
+  <code>label</code> element has no <span>labeled control</span>.</p>
+
+  <p>The <dfn title="attr-label-for"><code>for</code></dfn> attribute
+  may be specified to indicate a form control with which the caption
+  is to be associated. If the attribute is specified, the attribute's
+  value must be the ID of a <span title="category-label">labelable
+  form-associated element</span> in the same <code>Document</code> as
+  the <code>label</code> element. If the attribute is specified and
+  there is an element in the <code>Document</code> whose ID is equal
+  to the value of the <code title="attr-label-for">for</code>
+  attribute, and the first such element is a <span
+  title="category-label">labelable form-associated element</span>,
+  then that element is the <code>label</code> element's <span>labeled
+  control</span>.</p>
+
+  <p>If the <code title="attr-label-for">for</code> attribute is not
+  specified, but the <code>label</code> element has a <span>labelable
+  form-associated element</span> descendant, then the first such
+  descendant in <span>tree order</span> is the <code>label</code>
+  element's <span>labeled control</span>.</p>
 
   <p>The <code title="attr-fae-form">form</code> attribute is used to
   explicitly associate the <code>label</code> element with its
   <span>form owner</span>. The <code title="attr-fe-name">name</code>
   attribute represents the element's name.</p>
 
+  <p>The <dfn title="dom-label-htmlFor"><code>htmlFor</code></dfn> DOM
+  attribute must <span>reflect</span> the <code
+  title="attr-label-for">for</code> content attribute.</p>
+
+  <p>The <dfn title="dom-label-control"><code>control</code></dfn> DOM
+  attribute must return the <code>label</code> element's <span>labeled
+  control</span>, if any, or null if there isn't one.</p>
+
+  <hr>
+
+  <p><span title="labelable form-associated element">Labelable
+  form-associated elements</span> have a <code>NodeList</code> object
+  associated with them that represents the list of <code>label</code>
+  elements, in <span>tree order</span>, whose <span>labeled
+  control</span> is the element in question. The <dfn
+  title="dom-lfe-labels"><code>labels</code></dfn> DOM attribute of
+  <span title="labelable form-associated element">labelable
+  form-associated elements</span>, on getting, must return that
+  <code>NodeList</code> object.</p>
+
 
 
   <h4>The <dfn><code>input</code></dfn> element</h4>
@@ -24205,7 +24252,7 @@ more than one control, no controls?
    <dt>Categories</dt>
    <dd><span>Phrasing content</span>.</dd>
    <dd><span>Interactive content</span>.</dd>
-   <dd><span title="category-listed">Listed</span>, <span title="category-submit">submittable</span>, and <span title="category-reset">resettable</span> <span>form-associated element</span>.</dd>
+   <dd><span title="category-listed">Listed</span>, <span title="category-label">labelable</span>, <span title="category-submit">submittable</span>, and <span title="category-reset">resettable</span> <span>form-associated element</span>.</dd>
    <dt>Contexts in which this element may be used:</dt>
    <dd>Where <span>phrasing content</span> is expected.</dd>
    <dt>Content model:</dt>
@@ -24270,7 +24317,7 @@ more than one control, no controls?
            attribute float <span title="dom-input-valueAsNumber">valueAsNumber</span>;
   readonly attribute <span>HTMLOptionElement</span> <span title="dom-input-selectedOption">selectedOption</span>;
 
-  readonly attribute <span>HTMLCollection</span> <span title="dom-input-labels">labels</span>;
+  readonly attribute <span>HTMLCollection</span> <span title="dom-lfe-labels">labels</span>;
 
   void <span title="dom-input-stepUp">stepUp</span>(in int n);
   void <span title="dom-input-stepDown">stepDown</span>(in int n);
@@ -24320,7 +24367,7 @@ rel="" on submit buttons?
    <dt>Categories</dt>
    <dd><span>Phrasing content</span>.</dd>
    <dd><span>Interactive content</span>.</dd>
-   <dd><span title="category-listed">Listed</span> and <span title="category-submit">submittable</span> <span>form-associated element</span>.</dd>
+   <dd><span title="category-listed">Listed</span>, <span title="category-label">labelable</span>, and <span title="category-submit">submittable</span> <span>form-associated element</span>.</dd>
    <dt>Contexts in which this element may be used:</dt>
    <dd>Where <span>phrasing content</span> is expected.</dd>
    <dt>Content model:</dt>
@@ -24350,7 +24397,7 @@ rel="" on submit buttons?
            attribute DOMString <span title="dom-button-type">type</span>;
            attribute DOMString <span title="dom-button-value">value</span>;
 
-  readonly attribute <span>HTMLCollection</span> <span title="dom-button-labels">labels</span>;
+  readonly attribute <span>HTMLCollection</span> <span title="dom-lfe-labels">labels</span>;
 
   readonly attribute boolean <span title="dom-cva-willValidate">willValidate</span>;
   readonly attribute <span>ValidityState</span> <span title="dom-cva-validity">validity</span>;
@@ -24385,7 +24432,7 @@ rel="" on submit buttons?
    <dt>Categories</dt>
    <dd><span>Phrasing content</span>.</dd>
    <dd><span>Interactive content</span>.</dd>
-   <dd><span title="category-listed">Listed</span>, <span title="category-submit">submittable</span>, and <span title="category-reset">resettable</span> <span>form-associated element</span>.</dd>
+   <dd><span title="category-listed">Listed</span>, <span title="category-label">labelable</span>, <span title="category-submit">submittable</span>, and <span title="category-reset">resettable</span> <span>form-associated element</span>.</dd>
    <dt>Contexts in which this element may be used:</dt>
    <dd>Where <span>phrasing content</span> is expected.</dd>
    <dt>Content model:</dt>
@@ -24417,7 +24464,7 @@ rel="" on submit buttons?
            attribute long <span title="dom-select-selectedIndex">selectedIndex</span>;
            attribute DOMString <span title="dom-select-value">value</span>;
 
-  readonly attribute <span>HTMLCollection</span> <span title="dom-select-labels">labels</span>;
+  readonly attribute <span>HTMLCollection</span> <span title="dom-lfe-labels">labels</span>;
 
   void <span title="dom-select-add">add</span>(in <span>HTMLElement</span> element, in <span>HTMLElement</span> before);
   void <span title="dom-select-remove">remove</span>(in long index);
@@ -24552,7 +24599,7 @@ interface <dfn>HTMLOptionElement</dfn> : <span>HTMLElement</span> {
    <dt>Categories</dt>
    <dd><span>Phrasing content</span>.</dd>
    <dd><span>Interactive content</span>.</dd>
-   <dd><span title="category-listed">Listed</span>, <span title="category-submit">submittable</span>, and <span title="category-reset">resettable</span> <span>form-associated element</span>.</dd>
+   <dd><span title="category-listed">Listed</span>, <span title="category-label">labelable</span>, <span title="category-submit">submittable</span>, and <span title="category-reset">resettable</span> <span>form-associated element</span>.</dd>
    <dt>Contexts in which this element may be used:</dt>
    <dd>Where <span>phrasing content</span> is expected.</dd>
    <dt>Content model:</dt>
@@ -24592,7 +24639,7 @@ interface <dfn>HTMLOptionElement</dfn> : <span>HTMLElement</span> {
            attribute DOMString <span title="dom-textarea-defaultValue">defaultValue</span>;
            attribute DOMString <span title="dom-textarea-value">value</span>;
 
-  readonly attribute <span>HTMLCollection</span> <span title="dom-textarea-labels">labels</span>;
+  readonly attribute <span>HTMLCollection</span> <span title="dom-lfe-labels">labels</span>;
 
   readonly attribute boolean <span title="dom-cva-willValidate">willValidate</span>;
   readonly attribute <span>ValidityState</span> <span title="dom-cva-validity">validity</span>;