Annotation of html5/spec/the-form-element.html, revision 1.199
1.88 mike 1: <!DOCTYPE html>
1.198 sruby 2: <html lang="en-US-x-Hixie"><head><meta charset="utf-8"><title>4.10.3 The form element — HTML5</title><style type="text/css">
3:
4: .applies thead th > * { display: block; }
5: .applies thead code { display: block; }
6: .applies tbody th { white-space: nowrap; }
7: .applies td { text-align: center; }
8: .applies .yes { background: yellow; }
9:
10: .matrix, .matrix td { border: hidden; text-align: right; }
11: .matrix { margin-left: 2em; }
12:
13: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
14: .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
15: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
16:
17: td.eg { border-width: thin; text-align: center; }
18:
19: #table-example-1 { border: solid thin; border-collapse: collapse; margin-left: 3em; }
20: #table-example-1 * { font-family: "Essays1743", serif; line-height: 1.01em; }
21: #table-example-1 caption { padding-bottom: 0.5em; }
22: #table-example-1 thead, #table-example-1 tbody { border: none; }
23: #table-example-1 th, #table-example-1 td { border: solid thin; }
24: #table-example-1 th { font-weight: normal; }
25: #table-example-1 td { border-style: none solid; vertical-align: top; }
26: #table-example-1 th { padding: 0.5em; vertical-align: middle; text-align: center; }
27: #table-example-1 tbody tr:first-child td { padding-top: 0.5em; }
28: #table-example-1 tbody tr:last-child td { padding-bottom: 1.5em; }
29: #table-example-1 tbody td:first-child { padding-left: 2.5em; padding-right: 0; width: 9em; }
30: #table-example-1 tbody td:first-child::after { content: leader(". "); }
31: #table-example-1 tbody td { padding-left: 2em; padding-right: 2em; }
32: #table-example-1 tbody td:first-child + td { width: 10em; }
33: #table-example-1 tbody td:first-child + td ~ td { width: 2.5em; }
34: #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
35:
36: .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
37: .apple-table-examples * { font-family: "Times", serif; }
38: .apple-table-examples td, .apple-table-examples th { border: none; white-space: nowrap; padding-top: 0; padding-bottom: 0; }
39: .apple-table-examples tbody th:first-child { border-left: none; width: 100%; }
40: .apple-table-examples thead th:first-child ~ th { font-size: smaller; font-weight: bolder; border-bottom: solid 2px; text-align: center; }
41: .apple-table-examples tbody th::after, .apple-table-examples tfoot th::after { content: leader(". ") }
42: .apple-table-examples tbody th, .apple-table-examples tfoot th { font: inherit; text-align: left; }
43: .apple-table-examples td { text-align: right; vertical-align: top; }
44: .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
45: .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
46: .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
47: .apple-table-examples sup { line-height: 0; }
48:
49: .details-example img { vertical-align: top; }
50:
51: #base64-table {
52: white-space: nowrap;
53: font-size: 0.6em;
54: column-width: 6em;
55: column-count: 5;
56: column-gap: 1em;
57: -moz-column-width: 6em;
58: -moz-column-count: 5;
59: -moz-column-gap: 1em;
60: -webkit-column-width: 6em;
61: -webkit-column-count: 5;
62: -webkit-column-gap: 1em;
63: }
64: #base64-table thead { display: none; }
65: #base64-table * { border: none; }
66: #base64-table tbody td:first-child:after { content: ':'; }
67: #base64-table tbody td:last-child { text-align: right; }
68:
69: #named-character-references-table {
70: white-space: nowrap;
71: font-size: 0.6em;
72: column-width: 30em;
73: column-gap: 1em;
74: -moz-column-width: 30em;
75: -moz-column-gap: 1em;
76: -webkit-column-width: 30em;
77: -webkit-column-gap: 1em;
78: }
79: #named-character-references-table > table > tbody > tr > td:first-child + td,
80: #named-character-references-table > table > tbody > tr > td:last-child { text-align: center; }
81: #named-character-references-table > table > tbody > tr > td:last-child:hover > span { position: absolute; top: auto; left: auto; margin-left: 0.5em; line-height: 1.2; font-size: 5em; border: outset; padding: 0.25em 0.5em; background: white; width: 1.25em; height: auto; text-align: center; }
82: #named-character-references-table > table > tbody > tr#entity-CounterClockwiseContourIntegral > td:first-child { font-size: 0.5em; }
83:
84: .glyph.control { color: red; }
85:
86: @font-face {
87: font-family: 'Essays1743';
88: src: url('../fonts/Essays1743.ttf');
89: }
90: @font-face {
91: font-family: 'Essays1743';
92: font-weight: bold;
93: src: url('../fonts/Essays1743-Bold.ttf');
94: }
95: @font-face {
96: font-family: 'Essays1743';
97: font-style: italic;
98: src: url('../fonts/Essays1743-Italic.ttf');
99: }
100: @font-face {
101: font-family: 'Essays1743';
102: font-style: italic;
103: font-weight: bold;
104: src: url('../fonts/Essays1743-BoldItalic.ttf');
105: }
106:
107: </style><link href="data:text/css," id="complete" rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20%7B%20display:%20none;%20%7D%0Ahtml%20%7B%20border:%20solid%20yellow;%20%7D%20.domintro:before%20%7B%20display:%20none;%20%7D" id="author" rel="alternate stylesheet" title="Author documentation only"><link href="data:text/css,.impl%20%7B%20background:%20%23FFEEEE;%20%7D%20.domintro:before%20%7B%20background:%20%23FFEEEE;%20%7D" id="highlight" rel="alternate stylesheet" title="Highlight implementation requirements"><style type="text/css">
1.1 mike 108: pre { margin-left: 2em; white-space: pre-wrap; }
109: h2 { margin: 3em 0 1em 0; }
110: h3 { margin: 2.5em 0 1em 0; }
111: h4 { margin: 2.5em 0 0.75em 0; }
112: h5, h6 { margin: 2.5em 0 1em; }
113: h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
114: h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
115: p { margin: 1em 0; }
116: hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
117: dl, dd { margin-top: 0; margin-bottom: 0; }
118: dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
119: dt + dt { margin-top: 0; }
120: dd dt { margin-top: 0.25em; margin-bottom: 0; }
121: dd p { margin-top: 0; }
122: dd dl + p { margin-top: 1em; }
123: dd table + p { margin-top: 1em; }
124: p + * > li, dd li { margin: 1em 0; }
125: dt, dfn { font-weight: bold; font-style: normal; }
126: i, em { font-style: italic; }
127: dt dfn { font-style: italic; }
128: pre, code { font-size: inherit; font-family: monospace; font-variant: normal; }
129: pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
130: pre em { font-weight: bolder; font-style: normal; }
131: @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } }
132: var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
133: table { border-collapse: collapse; border-style: hidden hidden none hidden; }
134: table thead, table tbody { border-bottom: solid; }
135: table tbody th:first-child { border-left: solid; }
136: table tbody th { text-align: left; }
137: table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
138: blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
139:
140: .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; }
141: .matrix, .matrix td { border: none; text-align: right; }
142: .matrix { margin-left: 2em; }
143: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
144: .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
145: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
146:
147: .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; }
148: img.extra, p.overview { float: right; }
149: pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; position: relative; }
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152: pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; }
153: pre.css:first-line { color: #AAAA50; }
154: dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #DDFFDD; }
155: hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; }
156: dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; }
157: dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; }
158: dl.domintro dd p { margin: 0.5em 0; }
159: dl.domintro:before { display: table; margin: -1em -0.5em -0.5em auto; width: auto; content: 'This box is non-normative. Implementation requirements are given below this box.'; color: black; font-style: italic; border: solid 2px; background: white; padding: 0 0.25em; }
160: dl.switch { padding-left: 2em; }
161: dl.switch > dt { text-indent: -1.5em; }
162: dl.switch > dt:before { content: '\21AA'; padding: 0 0.5em 0 0; display: inline-block; width: 1em; text-align: right; line-height: 0.5em; }
163: dl.triple { padding: 0 0 0 1em; }
164: dl.triple dt, dl.triple dd { margin: 0; display: inline }
165: dl.triple dt:after { content: ':'; }
166: dl.triple dd:after { content: '\A'; white-space: pre; }
167: .diff-old { text-decoration: line-through; color: silver; background: transparent; }
168: .diff-chg, .diff-new { text-decoration: underline; color: green; background: transparent; }
169: a .diff-new { border-bottom: 1px blue solid; }
170:
1.180 sruby 171: figure.diagrams { border: double black; background: white; padding: 1em; }
172: figure.diagrams img { display: block; margin: 1em auto; }
173:
1.1 mike 174: h2 { page-break-before: always; }
175: h1, h2, h3, h4, h5, h6 { page-break-after: avoid; }
176: h1 + h2, hr + h2.no-toc { page-break-before: auto; }
177:
178: p > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]),
1.198 sruby 179: li > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]) { border-bottom: solid #9999CC; }
1.1 mike 180:
181: div.head { margin: 0 0 1em; padding: 1em 0 0 0; }
182: div.head p { margin: 0; }
183: div.head h1 { margin: 0; }
184: div.head .logo { float: right; margin: 0 1em; }
185: div.head .logo img { border: none } /* remove border from top image */
186: div.head dl { margin: 1em 0; }
187: div.head p.copyright, div.head p.alt { font-size: x-small; font-style: oblique; margin: 0; }
188:
189: body > .toc > li { margin-top: 1em; margin-bottom: 1em; }
190: body > .toc.brief > li { margin-top: 0.35em; margin-bottom: 0.35em; }
191: body > .toc > li > * { margin-bottom: 0.5em; }
192: body > .toc > li > * > li > * { margin-bottom: 0.25em; }
193: .toc, .toc li { list-style: none; }
194:
195: .brief { margin-top: 1em; margin-bottom: 1em; line-height: 1.1; }
196: .brief li { margin: 0; padding: 0; }
197: .brief li p { margin: 0; padding: 0; }
198:
199: .category-list { margin-top: -0.75em; margin-bottom: 1em; line-height: 1.5; }
200: .category-list::before { content: '\21D2\A0'; font-size: 1.2em; font-weight: 900; }
201: .category-list li { display: inline; }
202: .category-list li:not(:last-child)::after { content: ', '; }
203: .category-list li > span, .category-list li > a { text-transform: lowercase; }
204: .category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
205:
206: .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
207: .XXX > :first-child { margin-top: 0; }
208: p .XXX { line-height: 3em; }
209: .annotation { border: solid thin black; background: #0C479D; color: white; position: relative; margin: 8px 0 20px 0; }
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211: .annotation :link, .annotation :visited { color: inherit; }
212: .annotation :link:hover, .annotation :visited:hover { background: transparent; }
213: .annotation span { border: none ! important; }
214: .note { color: green; background: transparent; font-family: sans-serif; }
215: .warning { color: red; background: transparent; }
216: .note, .warning { font-weight: bolder; font-style: italic; }
217: .note em, .warning em, .note i, .warning i { font-style: normal; }
218: p.note, div.note { padding: 0.5em 2em; }
219: span.note { padding: 0 2em; }
220: .note p:first-child, .warning p:first-child { margin-top: 0; }
221: .note p:last-child, .warning p:last-child { margin-bottom: 0; }
222: .warning:before { font-style: normal; }
223: p.note:before { content: 'Note: '; }
224: p.warning:before { content: '\26A0 Warning! '; }
225:
226: .bookkeeping:before { display: block; content: 'Bookkeeping details'; font-weight: bolder; font-style: italic; }
227: .bookkeeping { font-size: 0.8em; margin: 2em 0; }
228: .bookkeeping p { margin: 0.5em 2em; display: list-item; list-style: square; }
229: .bookkeeping dt { margin: 0.5em 2em 0; }
230: .bookkeeping dd { margin: 0 3em 0.5em; }
231:
232: h4 { position: relative; z-index: 3; }
233: h4 + .element, h4 + div + .element { margin-top: -2.5em; padding-top: 2em; }
234: .element {
235: background: #EEEEFF;
236: color: black;
237: margin: 0 0 1em 0.15em;
238: padding: 0 1em 0.25em 0.75em;
239: border-left: solid #9999FF 0.25em;
240: position: relative;
241: z-index: 1;
242: }
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244: position: absolute;
245: z-index: 2;
246: top: 0;
247: left: -1.15em;
248: height: 2em;
249: width: 0.9em;
250: background: #EEEEFF;
251: content: ' ';
252: border-style: none none solid solid;
253: border-color: #9999FF;
254: border-width: 0.25em;
255: }
256:
257: .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
258: td > .example:only-child { margin: 0 0 0 0.1em; }
259:
260: ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
261: ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
262: ul.domTree li li { list-style: none; }
263: ul.domTree li:first-child::before { position: absolute; top: 0; height: 0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
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265: ul.domTree span { font-style: italic; font-family: serif; }
266: ul.domTree .t1 code { color: purple; font-weight: bold; }
267: ul.domTree .t2 { font-style: normal; font-family: monospace; }
268: ul.domTree .t2 .name { color: black; font-weight: bold; }
269: ul.domTree .t2 .value { color: blue; font-weight: normal; }
270: ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
271: ul.domTree .t7 code, .domTree .t8 code { color: green; }
272: ul.domTree .t10 code { color: teal; }
273:
274: body.dfnEnabled dfn { cursor: pointer; }
275: .dfnPanel {
276: display: inline;
277: position: absolute;
278: z-index: 10;
279: height: auto;
280: width: auto;
281: padding: 0.5em 0.75em;
282: font: small sans-serif, Droid Sans Fallback;
283: background: #DDDDDD;
284: color: black;
285: border: outset 0.2em;
286: }
287: .dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; }
288: .dfnPanel :link, .dfnPanel :visited { color: black; }
289: .dfnPanel p { font-weight: bolder; }
290: .dfnPanel * + p { margin-top: 0.25em; }
291: .dfnPanel li { list-style-position: inside; }
292:
293: #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
294: #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
295: #configUI p label { display: block; }
296: #configUI #updateUI, #configUI .loginUI { text-align: center; }
297: #configUI input[type=button] { display: block; margin: auto; }
298:
299: fieldset { margin: 1em; padding: 0.5em 1em; }
300: fieldset > legend + * { margin-top: 0; }
301: fieldset > :last-child { margin-bottom: 0; }
302: fieldset p { margin: 0.5em 0; }
303:
1.198 sruby 304: </style><link href="http://www.w3.org/StyleSheets/TR/W3C-ED" rel="stylesheet" type="text/css"><script>
1.1 mike 305: function getCookie(name) {
306: var params = location.search.substr(1).split("&");
307: for (var index = 0; index < params.length; index++) {
308: if (params[index] == name)
309: return "1";
310: var data = params[index].split("=");
311: if (data[0] == name)
312: return unescape(data[1]);
313: }
314: var cookies = document.cookie.split("; ");
315: for (var index = 0; index < cookies.length; index++) {
316: var data = cookies[index].split("=");
317: if (data[0] == name)
318: return unescape(data[1]);
319: }
320: return null;
321: }
1.195 sruby 322: </script><link href="forms.html" title="4.10 Forms" rel="prev">
323: <link href="spec.html#contents" title="Table of contents" rel="contents">
1.1 mike 324: <link href="the-fieldset-element.html" title="4.10.4 The fieldset element" rel="next">
1.22 mike 325: </head><body onload="fixBrokenLink();" class="split chapter"><div class="head" id="head">
1.1 mike 326: <p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
327:
328: <h1>HTML5</h1>
1.195 sruby 329: <h2 class="no-num no-toc" id="a-vocabulary-and-associated-apis-for-html-and-xhtml">A vocabulary and associated APIs for HTML and XHTML</h2>
1.199 ! sruby 330: <h2 class="no-num no-toc" id="editor's-draft-date-1-january-1970">Editor's Draft 13 October 2012</h2>
1.85 mike 331: </div>
1.198 sruby 332:
333:
334: <div class="prev_next">
1.1 mike 335: <a href="forms.html">← 4.10 Forms</a> –
1.195 sruby 336: <a href="spec.html#contents">Table of contents</a> –
1.1 mike 337: <a href="the-fieldset-element.html">4.10.4 The fieldset element →</a>
1.195 sruby 338: </div>
1.1 mike 339:
1.85 mike 340: <h4 id="the-form-element"><span class="secno">4.10.3 </span>The <dfn><code>form</code></dfn> element</h4>
341:
342: <dl class="element"><dt><a href="element-definitions.html#element-dfn-categories" title="element-dfn-categories">Categories</a>:</dt>
1.159 sruby 343: <dd><a href="content-models.html#flow-content-1">Flow content</a>.</dd>
344: <dd><a href="content-models.html#palpable-content-0">Palpable content</a>.</dd>
1.25 mike 345: <dt><a href="element-definitions.html#element-dfn-contexts" title="element-dfn-contexts">Contexts in which this element can be used</a>:</dt>
1.159 sruby 346: <dd>Where <a href="content-models.html#flow-content-1">flow content</a> is expected.</dd>
1.25 mike 347: <dt><a href="element-definitions.html#element-dfn-content-model" title="element-dfn-content-model">Content model</a>:</dt>
1.159 sruby 348: <dd><a href="content-models.html#flow-content-1">Flow content</a>, but with no <code><a href="#the-form-element">form</a></code> element descendants.</dd>
1.25 mike 349: <dt><a href="element-definitions.html#element-dfn-attributes" title="element-dfn-attributes">Content attributes</a>:</dt>
1.1 mike 350: <dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
351: <dd><code title="attr-form-accept-charset"><a href="#attr-form-accept-charset">accept-charset</a></code></dd>
1.159 sruby 352: <dd><code title="attr-fs-action"><a href="form-submission.html#attr-fs-action">action</a></code></dd>
1.1 mike 353: <dd><code title="attr-form-autocomplete"><a href="#attr-form-autocomplete">autocomplete</a></code></dd>
1.159 sruby 354: <dd><code title="attr-fs-enctype"><a href="form-submission.html#attr-fs-enctype">enctype</a></code></dd>
355: <dd><code title="attr-fs-method"><a href="form-submission.html#attr-fs-method">method</a></code></dd>
1.1 mike 356: <dd><code title="attr-form-name"><a href="#attr-form-name">name</a></code></dd>
1.159 sruby 357: <dd><code title="attr-fs-novalidate"><a href="form-submission.html#attr-fs-novalidate">novalidate</a></code></dd>
358: <dd><code title="attr-fs-target"><a href="form-submission.html#attr-fs-target">target</a></code></dd>
359: <dt><a href="element-definitions.html#element-dfn-dom" title="element-dfn-dom">DOM interface</a>:</dt><!--TOPIC:DOM APIs-->
1.1 mike 360: <dd>
361: <pre class="idl">[OverrideBuiltins]
362: interface <dfn id="htmlformelement">HTMLFormElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {
363: attribute DOMString <a href="#dom-form-acceptcharset" title="dom-form-acceptCharset">acceptCharset</a>;
1.159 sruby 364: attribute DOMString <a href="form-submission.html#dom-fs-action" title="dom-fs-action">action</a>;
1.1 mike 365: attribute DOMString <a href="#dom-form-autocomplete" title="dom-form-autocomplete">autocomplete</a>;
1.159 sruby 366: attribute DOMString <a href="form-submission.html#dom-fs-enctype" title="dom-fs-enctype">enctype</a>;
367: attribute DOMString <a href="form-submission.html#dom-fs-encoding" title="dom-fs-encoding">encoding</a>;<!-- historical artefact -->
368: attribute DOMString <a href="form-submission.html#dom-fs-method" title="dom-fs-method">method</a>;
1.1 mike 369: attribute DOMString <a href="#dom-form-name" title="dom-form-name">name</a>;
1.159 sruby 370: attribute boolean <a href="form-submission.html#dom-fs-novalidate" title="dom-fs-noValidate">noValidate</a>;
371: attribute DOMString <a href="form-submission.html#dom-fs-target" title="dom-fs-target">target</a>;
1.1 mike 372:
1.159 sruby 373: readonly attribute <a href="common-dom-interfaces.html#htmlformcontrolscollection-0">HTMLFormControlsCollection</a> <a href="#dom-form-elements" title="dom-form-elements">elements</a>;
1.1 mike 374: readonly attribute long <a href="#dom-form-length" title="dom-form-length">length</a>;
375: <a href="#dom-form-item" title="dom-form-item">getter</a> <a href="infrastructure.html#element">Element</a> (unsigned long index);
376: <a href="#dom-form-nameditem" title="dom-form-namedItem">getter</a> object (DOMString name);
377:
378: void <a href="#dom-form-submit" title="dom-form-submit">submit</a>();
379: void <a href="#dom-form-reset" title="dom-form-reset">reset</a>();
380: boolean <a href="#dom-form-checkvalidity" title="dom-form-checkValidity">checkValidity</a>();
381: };</pre>
382: </dd>
1.190 sruby 383: </dl><!--TOPIC:HTML--><p>The <code><a href="#the-form-element">form</a></code> element <a href="textFieldSelection.html#represents">represents</a> a
1.1 mike 384: collection of <a href="forms.html#form-associated-element" title="form-associated element">form-associated
385: elements</a>, some of which can represent editable values that
1.85 mike 386: can be submitted to a server for processing.</p>
387:
388: <p>The <dfn id="attr-form-accept-charset" title="attr-form-accept-charset"><code>accept-charset</code></dfn>
1.1 mike 389: attribute gives the character encodings that are to be used for the
390: submission. If specified, the value must be an <a href="common-microsyntaxes.html#ordered-set-of-unique-space-separated-tokens">ordered set of
391: unique space-separated tokens</a> that are <a href="infrastructure.html#ascii-case-insensitive">ASCII
392: case-insensitive</a>, and each token must be an <a href="infrastructure.html#ascii-case-insensitive">ASCII
393: case-insensitive</a> match for the <a href="infrastructure.html#preferred-mime-name">preferred MIME
394: name</a> of an <a href="infrastructure.html#ascii-compatible-character-encoding">ASCII-compatible character encoding</a>.
1.190 sruby 395: <a href="textFieldSelection.html#refsIANACHARSET">[IANACHARSET]</a></p>
1.85 mike 396:
397: <p>The <dfn id="attr-form-name" title="attr-form-name"><code>name</code></dfn> attribute
1.1 mike 398: represents the <code><a href="#the-form-element">form</a></code>'s name within the <code title="dom-document-forms"><a href="dom.html#dom-document-forms">forms</a></code> collection. The value must
399: not be the empty string, and the value must be unique amongst the
400: <code><a href="#the-form-element">form</a></code> elements in the <code title="dom-document-forms"><a href="dom.html#dom-document-forms">forms</a></code> collection that it is in, if
1.85 mike 401: any.</p>
402:
403: <p>The <dfn id="attr-form-autocomplete" title="attr-form-autocomplete"><code>autocomplete</code></dfn>
1.1 mike 404: attribute is an <a href="common-microsyntaxes.html#enumerated-attribute">enumerated attribute</a>. The attribute has
405: two states. The <code title="attr-form-autocomplete-on">on</code>
406: keyword maps to the <dfn id="attr-form-autocomplete-on-state" title="attr-form-autocomplete-on-state">on</dfn> state, and the
407: <code title="attr-form-autocomplete-off">off</code> keyword maps to
408: the <dfn id="attr-form-autocomplete-off-state" title="attr-form-autocomplete-off-state">off</dfn>
409: state. The attribute may also be omitted. The <i>missing value
410: default</i> is the <a href="#attr-form-autocomplete-on-state" title="attr-form-autocomplete-on-state">on</a> state. The <a href="#attr-form-autocomplete-off-state" title="attr-form-autocomplete-off-state">off</a> state indicates
411: that by default, <code><a href="the-input-element.html#the-input-element">input</a></code> elements in the form will have
412: their <a href="common-input-element-attributes.html#resulting-autocompletion-state">resulting autocompletion state</a> set to <i title="">off</i>; the <a href="#attr-form-autocomplete-on-state" title="attr-form-autocomplete-on-state">on</a> state indicates
413: that by default, <code><a href="the-input-element.html#the-input-element">input</a></code> elements in the form will have
1.85 mike 414: their <a href="common-input-element-attributes.html#resulting-autocompletion-state">resulting autocompletion state</a> set to <i title="">on</i>.</p>
415:
1.159 sruby 416: <p>The <code title="attr-fs-action"><a href="form-submission.html#attr-fs-action">action</a></code>, <code title="attr-fs-enctype"><a href="form-submission.html#attr-fs-enctype">enctype</a></code>, <code title="attr-fs-method"><a href="form-submission.html#attr-fs-method">method</a></code>, <code title="attr-fs-novalidate"><a href="form-submission.html#attr-fs-novalidate">novalidate</a></code>, and <code title="attr-fs-target"><a href="form-submission.html#attr-fs-target">target</a></code> attributes are <a href="form-submission.html#attributes-for-form-submission">attributes
1.85 mike 417: for form submission</a>.</p>
418:
1.159 sruby 419: <!--TOPIC:DOM APIs-->
1.85 mike 420: <dl class="domintro"><dt><var title="">form</var> . <code title="dom-form-elements"><a href="#dom-form-elements">elements</a></code></dt>
1.1 mike 421:
422: <dd>
423:
424: <p>Returns an <code><a href="infrastructure.html#htmlcollection">HTMLCollection</a></code> of the form controls in
425: the form (excluding image buttons for historical reasons).</p>
426:
427: </dd>
428:
429: <dt><var title="">form</var> . <code title="dom-form-length"><a href="#dom-form-length">length</a></code></dt>
430:
431: <dd>
432:
433: <p>Returns the number of form controls in the form (excluding
434: image buttons for historical reasons).</p>
435:
436: </dd>
437:
438: <dt><var title="">form</var>[<var title="">index</var>]</dt>
439: <dt><var title="">form</var>(<var title="">index</var>)</dt>
440:
441: <dd>
442:
443: <p>Returns the <var title="">index</var>th element in the form
444: (excluding image buttons for historical reasons).</p>
445:
446: </dd>
447:
448: <dt><var title="">form</var>[<var title="">name</var>]</dt>
449: <dt><var title="">form</var>(<var title="">name</var>)</dt>
450:
451: <dd>
452:
453: <p>Returns the form control (or, if there are several, a
1.123 mike 454: <code><a href="common-dom-interfaces.html#radionodelist">RadioNodeList</a></code> of the form controls) in the form with
455: the given <a href="infrastructure.html#concept-id" title="concept-id">ID</a> or <code title="attr-fe-name"><a href="attributes-common-to-form-controls.html#attr-fe-name">name</a></code> (excluding image buttons for
1.1 mike 456: historical reasons); or, if there are none, returns the
457: <code><a href="the-img-element.html#the-img-element">img</a></code> element with the given ID.</p>
458:
459: <p>Once an element has been referenced using a particular name,
460: that name will continue being available as a way to reference that
461: element in this method, even if the element's actual <a href="infrastructure.html#concept-id" title="concept-id">ID</a> or <code title="attr-fe-name"><a href="attributes-common-to-form-controls.html#attr-fe-name">name</a></code> changes, for as long as the
462: element remains in the <code><a href="dom.html#document">Document</a></code>.</p>
463:
464: <p>If there are multiple matching items, then a
1.123 mike 465: <code><a href="common-dom-interfaces.html#radionodelist">RadioNodeList</a></code> object containing all those elements is
1.1 mike 466: returned.</p>
467:
468: </dd>
469:
470: <dt><var title="">form</var> . <code title="dom-form-submit"><a href="#dom-form-submit">submit</a></code>()</dt>
471:
472: <dd>
473:
474: <p>Submits the form.</p>
475:
476: </dd>
477:
478: <dt><var title="">form</var> . <code title="dom-form-reset"><a href="#dom-form-reset">reset</a></code>()</dt>
479:
480: <dd>
481:
482: <p>Resets the form.</p>
483:
484: </dd>
485:
486: <dt><var title="">form</var> . <code title="dom-form-checkValidity"><a href="#dom-form-checkvalidity">checkValidity</a></code>()</dt>
487:
488: <dd>
489:
490: <p>Returns true if the form's controls are all valid; otherwise,
491: returns false.</p>
492:
493: </dd>
494:
495: </dl><div class="impl">
496:
497: <p>The <dfn id="dom-form-autocomplete" title="dom-form-autocomplete"><code>autocomplete</code></dfn> IDL
498: attribute must <a href="common-dom-interfaces.html#reflect">reflect</a> the content attribute of the
499: same name, <a href="common-dom-interfaces.html#limited-to-only-known-values">limited to only known values</a>.</p>
500:
501: <p>The <dfn id="dom-form-name" title="dom-form-name"><code>name</code></dfn> IDL
502: attribute must <a href="common-dom-interfaces.html#reflect">reflect</a> the content attribute of the
503: same name.</p>
504:
505: <p>The <dfn id="dom-form-acceptcharset" title="dom-form-acceptCharset"><code>acceptCharset</code></dfn> IDL
506: attribute must <a href="common-dom-interfaces.html#reflect">reflect</a> the <code title="attr-form-accept-charset"><a href="#attr-form-accept-charset">accept-charset</a></code> content
507: attribute.</p>
508:
509: <hr><p>The <dfn id="dom-form-elements" title="dom-form-elements"><code>elements</code></dfn>
1.159 sruby 510: IDL attribute must return an <code><a href="common-dom-interfaces.html#htmlformcontrolscollection-0">HTMLFormControlsCollection</a></code>
1.124 mike 511: rooted at the <code><a href="dom.html#document">Document</a></code> node while the <code><a href="#the-form-element">form</a></code>
512: element is <a href="infrastructure.html#in-a-document">in a <code>Document</code></a> and rooted at the
513: <code><a href="#the-form-element">form</a></code> element itself when it is not, whose filter
514: matches <a href="forms.html#category-listed" title="category-listed">listed elements</a> whose
515: <a href="association-of-controls-and-forms.html#form-owner">form owner</a> is the <code><a href="#the-form-element">form</a></code> element, with the
1.159 sruby 516: exception of <code><a href="the-input-element.html#the-input-element">input</a></code> elements whose <code title="attr-input-type"><a href="the-input-element.html#attr-input-type">type</a></code> attribute is in the <a href="states-of-the-type-attribute.html#image-button-state-(type=image)" title="attr-input-type-image">Image Button</a> state, which must,
1.1 mike 517: for historical reasons, be excluded from this particular
518: collection.</p>
519:
520: <p>The <dfn id="dom-form-length" title="dom-form-length"><code>length</code></dfn> IDL
521: attribute must return the number of nodes <a href="infrastructure.html#represented-by-the-collection" title="represented
522: by the collection">represented</a> by the <code title="dom-form-elements"><a href="#dom-form-elements">elements</a></code> collection.</p>
523:
524: <p>The <a href="infrastructure.html#supported-property-indices">supported property indices</a> at any instant are
525: the indices supported by the object returned by the <code title="dom-form-elements"><a href="#dom-form-elements">elements</a></code> attribute at that
526: instant.</p>
527:
528: <p>When a <code><a href="#the-form-element">form</a></code> element is <dfn id="dom-form-item" title="dom-form-item">indexed for indexed property retrieval</dfn>,
529: the user agent must return the value returned by the <code title="dom-HTMLFormControlsCollection-item">item</code> method on
530: the <code title="dom-form-elements"><a href="#dom-form-elements">elements</a></code> collection, when
531: invoked with the given index as its argument.</p>
532:
1.159 sruby 533: <hr><!-- Welcome to crazy town. Population: The Web. --><p>Each <code><a href="#the-form-element">form</a></code> element has a mapping of names to elements
1.1 mike 534: called the <dfn id="past-names-map">past names map</dfn>. It is used to persist names of
535: controls even when they change names.</p>
536:
537: <p>The <a href="infrastructure.html#supported-property-names">supported property names</a> consist of the values
538: of all the <code title="attr-id"><a href="global-attributes.html#the-id-attribute">id</a></code> and <code title="attr-fe-name"><a href="attributes-common-to-form-controls.html#attr-fe-name">name</a></code> attributes of all the <a href="forms.html#category-listed" title="category-listed">listed elements</a> and <code><a href="the-img-element.html#the-img-element">img</a></code>
539: elements that are descendants of the <code><a href="#the-form-element">form</a></code> element, and
540: all the names currently in the <a href="#past-names-map">past names map</a>.</p>
541:
542: <p>When a <code><a href="#the-form-element">form</a></code> element is <dfn id="dom-form-nameditem" title="dom-form-namedItem">indexed for named property
543: retrieval</dfn>, the user agent must run the following steps:</p>
544:
545: <ol><li><p>Let <var title="">candidates</var> be a <a href="infrastructure.html#live">live</a>
1.123 mike 546: <code><a href="common-dom-interfaces.html#radionodelist">RadioNodeList</a></code> object containing all the <a href="forms.html#category-listed" title="category-listed">listed elements</a> that are descendants
1.1 mike 547: of the <code><a href="#the-form-element">form</a></code> element and that have either an <code title="attr-id"><a href="global-attributes.html#the-id-attribute">id</a></code> attribute or a <code title="attr-fe-name"><a href="attributes-common-to-form-controls.html#attr-fe-name">name</a></code> attribute equal to <var title="">name</var>, in <a href="infrastructure.html#tree-order">tree order</a>.</p></li>
548:
549: <li><p>If <var title="">candidates</var> is empty, let <var title="">candidates</var> be a <a href="infrastructure.html#live">live</a>
1.123 mike 550: <code><a href="common-dom-interfaces.html#radionodelist">RadioNodeList</a></code> object containing all the
551: <code><a href="the-img-element.html#the-img-element">img</a></code> elements that are descendants of the
1.190 sruby 552: <code><a href="#the-form-element">form</a></code> element and that have either an <code title="attr-id"><a href="global-attributes.html#the-id-attribute">id</a></code> attribute or a <code title="attr-img-name"><a href="textFieldSelection.html#attr-img-name">name</a></code> attribute equal to <var title="">name</var>, in <a href="infrastructure.html#tree-order">tree order</a>.</p></li>
1.1 mike 553:
554: <li><p>If <var title="">candidates</var> is empty, <var title="">name</var> is the name of one of the entries in the
555: <code><a href="#the-form-element">form</a></code> element's <a href="#past-names-map">past names map</a>: return the
556: object associated with <var title="">name</var> in that
557: map.</p></li>
558:
559: <li><p>If <var title="">candidates</var> contains more than one
560: node, return <var title="">candidates</var> and abort these
561: steps.</p></li>
562:
563: <li><p>Otherwise, <var title="">candidates</var> contains exactly
564: one node. Add a mapping from <var title="">name</var> to the node
565: in <var title="">candidates</var> in the <code><a href="#the-form-element">form</a></code> element's
566: <a href="#past-names-map">past names map</a>, replacing the previous entry with the
567: same name, if any.</p></li>
568:
569: <li><p>Return the node in <var title="">candidates</var>.</p></li>
570:
571: </ol><p>If an element listed in the <code><a href="#the-form-element">form</a></code> element's <a href="#past-names-map">past
572: names map</a> is removed from the <code><a href="dom.html#document">Document</a></code>, then its
573: entries must be removed from the map.</p>
574:
1.159 sruby 575: <!--
576: This ridiculous setup is intended to do as much of the right thing
577: while still supporting code written to work in IE7. IE versions
578: prior to IE8 do not update the names on the <form> element
579: collection to match new names when elements are renamed, and there
580: are enough pages that rename elements and then access them by
581: their old name that we have to support this.
582:
583: But we still want to expose them using the new names, so as far as
584: possible we pretend the legacy names aren't there except if
585: there's no other element actually named that way.
586:
587: Removing the element did remove the legacy name in IE7:
588: http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E...%3Cform%20action%3D%22%2F%22%3E%3Cinput%20name%3Dsubmit%3E%3C%2Fform%3E%0A%3Cscript%3E%0A%20w(document.forms%5B0%5D.submit)%3B%0A%20w(document.forms%5B0%5D.removeChild(document.getElementsByTagName('input')%5B0%5D))%3B%0A%20w(document.forms%5B0%5D.length)%3B%0A%20try%20%7B%20document.forms%5B0%5D.submit()%3B%20%7D%20catch%20(e)%20%20%7B%20w(e.message)%20%7D%0A%3C%2Fscript%3E
589:
590: There's no interop on what happens when the name was originally a
591: duplicate name, so we don't persist such accesses - at the time
592: of writing, Safari returned the first element, Firefox returned
593: null (as we do), and IE7 returned the original collection:
594: http://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E...%3Cform%20action%3D%22%2F%22%3E%3Cinput%20name%3Da%20id%3Dfirst%3E%3Cinput%20name%3Da%20id%3Dsecond%3E%3C%2Fform%3E%0A%3Cscript%3E%0A%20w%28document.forms[0].a%29%3B%0A%20document.getElementsByTagName%28%27input%27%29[0].name%20%3D%20%27b%27%3B%0A%20document.getElementsByTagName%28%27input%27%29[1].name%20%3D%20%27b%27%3B%0A%20w%28document.forms[0].length%29%3B%0A%20w%28document.forms[0].a.id%29%3B%0A%3C%2Fscript%3E
595:
596: In addition, the <img> fallback nonsense is similarly here for
597: legacy reasons. As is the exclusion of <input type=image>.
1.4 mike 598:
1.159 sruby 599: Also, check this out:
600: http://software.hixie.ch/utilities/js/live-dom-viewer/saved/1220
601:
602: -->
603:
604: <!-- Now leaving crazy town. -->
1.1 mike 605:
606: <hr><p>The <dfn id="dom-form-submit" title="dom-form-submit"><code>submit()</code></dfn>
1.190 sruby 607: method, when invoked, must <a href="textFieldSelection.html#concept-form-submit" title="concept-form-submit">submit</a> the <code><a href="#the-form-element">form</a></code>
1.1 mike 608: element from the <code><a href="#the-form-element">form</a></code> element itself, with the <var title="">submitted from <code title="dom-form-submit"><a href="#dom-form-submit">submit()</a></code> method</var> flag set.</p>
609:
610: <p>The <dfn id="dom-form-reset" title="dom-form-reset"><code>reset()</code></dfn>
611: method, when invoked, must run the following steps:</p>
612:
613: <ol><li><p>If the <code><a href="#the-form-element">form</a></code> element is marked as <i><a href="#locked-for-reset">locked for
614: reset</a></i>, then abort these steps.</p></li>
615:
616: <li><p>Mark the <code><a href="#the-form-element">form</a></code> element as <dfn id="locked-for-reset">locked for
617: reset</dfn>.</p></li>
618:
1.190 sruby 619: <li><p><a href="textFieldSelection.html#concept-form-reset" title="concept-form-reset">Reset</a> the
1.1 mike 620: <code><a href="#the-form-element">form</a></code> element.</p></li>
621:
622: <li><p>Unmark the <code><a href="#the-form-element">form</a></code> element as <i><a href="#locked-for-reset">locked for
623: reset</a></i>.</p></li>
624:
625: </ol><p>If the <dfn id="dom-form-checkvalidity" title="dom-form-checkValidity"><code>checkValidity()</code></dfn>
1.190 sruby 626: method is invoked, the user agent must <a href="textFieldSelection.html#statically-validate-the-constraints">statically validate the
1.1 mike 627: constraints</a> of the <code><a href="#the-form-element">form</a></code> element, and return true
628: if the constraint validation return a <i>positive</i> result, and
629: false if it returned a <i>negative</i> result.</p>
630:
1.85 mike 631: </div>
1.159 sruby 632: <!--TOPIC:HTML-->
1.85 mike 633:
634: <div class="example">
1.1 mike 635:
636: <p>This example shows two search forms:</p>
637:
638: <pre><form action="http://www.google.com/search" method="get">
639: <label>Google: <input type="search" name="q"></label> <input type="submit" value="Search...">
640: </form>
641: <form action="http://www.bing.com/search" method="get">
642: <label>Bing: <input type="search" name="q"></label> <input type="submit" value="Search...">
643: </form></pre>
644:
1.85 mike 645: </div>
646:
647:
648:
649:
650: </body></html>
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