Annotation of html5/spec/the-textarea-element.html, revision 1.211
1.205 sruby 1: <!DOCTYPE html><html lang="en-US-x-Hixie"><meta charset="utf-8"><title>4.10.13 The textarea element — HTML5</title><style type="text/css">
1.201 sruby 2:
3: .applies thead th > * { display: block; }
4: .applies thead code { display: block; }
5: .applies tbody th { white-space: nowrap; }
6: .applies td { text-align: center; }
7: .applies .yes { background: yellow; }
8:
9: .matrix, .matrix td { border: hidden; text-align: right; }
10: .matrix { margin-left: 2em; }
11:
12: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
13: .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
14: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
15:
16: td.eg { border-width: thin; text-align: center; }
17:
18: #table-example-1 { border: solid thin; border-collapse: collapse; margin-left: 3em; }
19: #table-example-1 * { font-family: "Essays1743", serif; line-height: 1.01em; }
20: #table-example-1 caption { padding-bottom: 0.5em; }
21: #table-example-1 thead, #table-example-1 tbody { border: none; }
22: #table-example-1 th, #table-example-1 td { border: solid thin; }
23: #table-example-1 th { font-weight: normal; }
24: #table-example-1 td { border-style: none solid; vertical-align: top; }
25: #table-example-1 th { padding: 0.5em; vertical-align: middle; text-align: center; }
26: #table-example-1 tbody tr:first-child td { padding-top: 0.5em; }
27: #table-example-1 tbody tr:last-child td { padding-bottom: 1.5em; }
28: #table-example-1 tbody td:first-child { padding-left: 2.5em; padding-right: 0; width: 9em; }
29: #table-example-1 tbody td:first-child::after { content: leader(". "); }
30: #table-example-1 tbody td { padding-left: 2em; padding-right: 2em; }
31: #table-example-1 tbody td:first-child + td { width: 10em; }
32: #table-example-1 tbody td:first-child + td ~ td { width: 2.5em; }
33: #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
34:
35: .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
36: .apple-table-examples * { font-family: "Times", serif; }
37: .apple-table-examples td, .apple-table-examples th { border: none; white-space: nowrap; padding-top: 0; padding-bottom: 0; }
38: .apple-table-examples tbody th:first-child { border-left: none; width: 100%; }
39: .apple-table-examples thead th:first-child ~ th { font-size: smaller; font-weight: bolder; border-bottom: solid 2px; text-align: center; }
40: .apple-table-examples tbody th::after, .apple-table-examples tfoot th::after { content: leader(". ") }
41: .apple-table-examples tbody th, .apple-table-examples tfoot th { font: inherit; text-align: left; }
42: .apple-table-examples td { text-align: right; vertical-align: top; }
43: .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
44: .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
45: .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
46: .apple-table-examples sup { line-height: 0; }
47:
48: .details-example img { vertical-align: top; }
49:
50: #base64-table {
51: white-space: nowrap;
52: font-size: 0.6em;
53: column-width: 6em;
54: column-count: 5;
55: column-gap: 1em;
56: -moz-column-width: 6em;
57: -moz-column-count: 5;
58: -moz-column-gap: 1em;
59: -webkit-column-width: 6em;
60: -webkit-column-count: 5;
61: -webkit-column-gap: 1em;
62: }
63: #base64-table thead { display: none; }
64: #base64-table * { border: none; }
65: #base64-table tbody td:first-child:after { content: ':'; }
66: #base64-table tbody td:last-child { text-align: right; }
67:
68: #named-character-references-table {
69: white-space: nowrap;
70: font-size: 0.6em;
71: column-width: 30em;
72: column-gap: 1em;
73: -moz-column-width: 30em;
74: -moz-column-gap: 1em;
75: -webkit-column-width: 30em;
76: -webkit-column-gap: 1em;
77: }
78: #named-character-references-table > table > tbody > tr > td:first-child + td,
79: #named-character-references-table > table > tbody > tr > td:last-child { text-align: center; }
80: #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; }
81: #named-character-references-table > table > tbody > tr#entity-CounterClockwiseContourIntegral > td:first-child { font-size: 0.5em; }
82:
83: .glyph.control { color: red; }
84:
85: @font-face {
86: font-family: 'Essays1743';
1.207 sruby 87: src: url('fonts/Essays1743.ttf');
1.201 sruby 88: }
89: @font-face {
90: font-family: 'Essays1743';
91: font-weight: bold;
1.207 sruby 92: src: url('fonts/Essays1743-Bold.ttf');
1.201 sruby 93: }
94: @font-face {
95: font-family: 'Essays1743';
96: font-style: italic;
1.207 sruby 97: src: url('fonts/Essays1743-Italic.ttf');
1.201 sruby 98: }
99: @font-face {
100: font-family: 'Essays1743';
101: font-style: italic;
102: font-weight: bold;
1.207 sruby 103: src: url('fonts/Essays1743-BoldItalic.ttf');
1.201 sruby 104: }
105:
1.205 sruby 106: </style><link href="data:text/css," id="complete" rel="stylesheet" title="Complete specification"><link href="data:text/css,.impl%20{%20display:%20none;%20}%0Ahtml%20{%20border:%20solid%20yellow;%20}%20.domintro:before%20{%20display:%20none;%20}" id="author" rel="alternate stylesheet" title="Author documentation only"><link href="data:text/css,.impl%20{%20background:%20%23FFEEEE;%20}%20.domintro:before%20{%20background:%20%23FFEEEE;%20}" id="highlight" rel="alternate stylesheet" title="Highlight implementation requirements"><style type="text/css">
1.1 mike 107: pre { margin-left: 2em; white-space: pre-wrap; }
108: h2 { margin: 3em 0 1em 0; }
109: h3 { margin: 2.5em 0 1em 0; }
110: h4 { margin: 2.5em 0 0.75em 0; }
111: h5, h6 { margin: 2.5em 0 1em; }
112: h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
113: h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
114: p { margin: 1em 0; }
115: hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
116: dl, dd { margin-top: 0; margin-bottom: 0; }
117: dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
118: dt + dt { margin-top: 0; }
119: dd dt { margin-top: 0.25em; margin-bottom: 0; }
120: dd p { margin-top: 0; }
121: dd dl + p { margin-top: 1em; }
122: dd table + p { margin-top: 1em; }
123: p + * > li, dd li { margin: 1em 0; }
124: dt, dfn { font-weight: bold; font-style: normal; }
125: i, em { font-style: italic; }
126: dt dfn { font-style: italic; }
127: pre, code { font-size: inherit; font-family: monospace; font-variant: normal; }
128: pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
129: pre em { font-weight: bolder; font-style: normal; }
130: @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } }
131: var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
132: table { border-collapse: collapse; border-style: hidden hidden none hidden; }
133: table thead, table tbody { border-bottom: solid; }
134: table tbody th:first-child { border-left: solid; }
135: table tbody th { text-align: left; }
136: table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
137: blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
138:
139: .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; }
140: .matrix, .matrix td { border: none; text-align: right; }
141: .matrix { margin-left: 2em; }
142: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
143: .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
144: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
145:
146: .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; }
147: img.extra, p.overview { float: right; }
148: pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; position: relative; }
149: pre.idl :link, pre.idl :visited { color: inherit; background: transparent; }
150: pre.idl::before { content: "IDL"; font: bold small sans-serif; padding: 0.5em; background: white; position: absolute; top: 0; margin: -1px 0 0 -4em; width: 1.5em; border: thin solid; border-radius: 0 0 0 0.5em }
151: pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; }
152: pre.css:first-line { color: #AAAA50; }
153: dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #DDFFDD; }
154: hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; }
155: dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; }
156: dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; }
157: dl.domintro dd p { margin: 0.5em 0; }
158: 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; }
159: dl.switch { padding-left: 2em; }
160: dl.switch > dt { text-indent: -1.5em; }
161: dl.switch > dt:before { content: '\21AA'; padding: 0 0.5em 0 0; display: inline-block; width: 1em; text-align: right; line-height: 0.5em; }
162: dl.triple { padding: 0 0 0 1em; }
163: dl.triple dt, dl.triple dd { margin: 0; display: inline }
164: dl.triple dt:after { content: ':'; }
165: dl.triple dd:after { content: '\A'; white-space: pre; }
166: .diff-old { text-decoration: line-through; color: silver; background: transparent; }
167: .diff-chg, .diff-new { text-decoration: underline; color: green; background: transparent; }
168: a .diff-new { border-bottom: 1px blue solid; }
169:
1.180 sruby 170: figure.diagrams { border: double black; background: white; padding: 1em; }
171: figure.diagrams img { display: block; margin: 1em auto; }
172:
1.1 mike 173: h2 { page-break-before: always; }
174: h1, h2, h3, h4, h5, h6 { page-break-after: avoid; }
175: h1 + h2, hr + h2.no-toc { page-break-before: auto; }
176:
177: p > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]),
1.201 sruby 178: li > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]) { border-bottom: solid #9999CC; }
1.1 mike 179:
180: div.head { margin: 0 0 1em; padding: 1em 0 0 0; }
181: div.head p { margin: 0; }
182: div.head h1 { margin: 0; }
183: div.head .logo { float: right; margin: 0 1em; }
184: div.head .logo img { border: none } /* remove border from top image */
185: div.head dl { margin: 1em 0; }
186: div.head p.copyright, div.head p.alt { font-size: x-small; font-style: oblique; margin: 0; }
187:
188: body > .toc > li { margin-top: 1em; margin-bottom: 1em; }
189: body > .toc.brief > li { margin-top: 0.35em; margin-bottom: 0.35em; }
190: body > .toc > li > * { margin-bottom: 0.5em; }
191: body > .toc > li > * > li > * { margin-bottom: 0.25em; }
192: .toc, .toc li { list-style: none; }
193:
194: .brief { margin-top: 1em; margin-bottom: 1em; line-height: 1.1; }
195: .brief li { margin: 0; padding: 0; }
196: .brief li p { margin: 0; padding: 0; }
197:
198: .category-list { margin-top: -0.75em; margin-bottom: 1em; line-height: 1.5; }
199: .category-list::before { content: '\21D2\A0'; font-size: 1.2em; font-weight: 900; }
200: .category-list li { display: inline; }
201: .category-list li:not(:last-child)::after { content: ', '; }
202: .category-list li > span, .category-list li > a { text-transform: lowercase; }
203: .category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
204:
205: .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
206: .XXX > :first-child { margin-top: 0; }
207: p .XXX { line-height: 3em; }
208: .annotation { border: solid thin black; background: #0C479D; color: white; position: relative; margin: 8px 0 20px 0; }
209: .annotation:before { position: absolute; left: 0; top: 0; width: 100%; height: 100%; margin: 6px -6px -6px 6px; background: #333333; z-index: -1; content: ''; }
210: .annotation :link, .annotation :visited { color: inherit; }
211: .annotation :link:hover, .annotation :visited:hover { background: transparent; }
212: .annotation span { border: none ! important; }
213: .note { color: green; background: transparent; font-family: sans-serif; }
214: .warning { color: red; background: transparent; }
215: .note, .warning { font-weight: bolder; font-style: italic; }
216: .note em, .warning em, .note i, .warning i { font-style: normal; }
217: p.note, div.note { padding: 0.5em 2em; }
218: span.note { padding: 0 2em; }
219: .note p:first-child, .warning p:first-child { margin-top: 0; }
220: .note p:last-child, .warning p:last-child { margin-bottom: 0; }
221: .warning:before { font-style: normal; }
222: p.note:before { content: 'Note: '; }
223: p.warning:before { content: '\26A0 Warning! '; }
224:
225: .bookkeeping:before { display: block; content: 'Bookkeeping details'; font-weight: bolder; font-style: italic; }
226: .bookkeeping { font-size: 0.8em; margin: 2em 0; }
227: .bookkeeping p { margin: 0.5em 2em; display: list-item; list-style: square; }
228: .bookkeeping dt { margin: 0.5em 2em 0; }
229: .bookkeeping dd { margin: 0 3em 0.5em; }
230:
231: h4 { position: relative; z-index: 3; }
232: h4 + .element, h4 + div + .element { margin-top: -2.5em; padding-top: 2em; }
233: .element {
234: background: #EEEEFF;
235: color: black;
236: margin: 0 0 1em 0.15em;
237: padding: 0 1em 0.25em 0.75em;
238: border-left: solid #9999FF 0.25em;
239: position: relative;
240: z-index: 1;
241: }
242: .element:before {
243: position: absolute;
244: z-index: 2;
245: top: 0;
246: left: -1.15em;
247: height: 2em;
248: width: 0.9em;
249: background: #EEEEFF;
250: content: ' ';
251: border-style: none none solid solid;
252: border-color: #9999FF;
253: border-width: 0.25em;
254: }
255:
256: .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
257: td > .example:only-child { margin: 0 0 0 0.1em; }
258:
259: ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
260: ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
261: ul.domTree li li { list-style: none; }
262: 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; }
263: ul.domTree li:not(:last-child)::after { position: absolute; top: 0; bottom: -0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
264: ul.domTree span { font-style: italic; font-family: serif; }
265: ul.domTree .t1 code { color: purple; font-weight: bold; }
266: ul.domTree .t2 { font-style: normal; font-family: monospace; }
267: ul.domTree .t2 .name { color: black; font-weight: bold; }
268: ul.domTree .t2 .value { color: blue; font-weight: normal; }
269: ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
270: ul.domTree .t7 code, .domTree .t8 code { color: green; }
271: ul.domTree .t10 code { color: teal; }
272:
273: body.dfnEnabled dfn { cursor: pointer; }
274: .dfnPanel {
275: display: inline;
276: position: absolute;
277: z-index: 10;
278: height: auto;
279: width: auto;
280: padding: 0.5em 0.75em;
281: font: small sans-serif, Droid Sans Fallback;
282: background: #DDDDDD;
283: color: black;
284: border: outset 0.2em;
285: }
286: .dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; }
287: .dfnPanel :link, .dfnPanel :visited { color: black; }
288: .dfnPanel p { font-weight: bolder; }
289: .dfnPanel * + p { margin-top: 0.25em; }
290: .dfnPanel li { list-style-position: inside; }
291:
292: #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
293: #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
294: #configUI p label { display: block; }
295: #configUI #updateUI, #configUI .loginUI { text-align: center; }
296: #configUI input[type=button] { display: block; margin: auto; }
297:
298: fieldset { margin: 1em; padding: 0.5em 1em; }
299: fieldset > legend + * { margin-top: 0; }
300: fieldset > :last-child { margin-bottom: 0; }
301: fieldset p { margin: 0.5em 0; }
302:
1.208 sruby 303: </style><link href="http://www.w3.org/StyleSheets/TR/W3C-ED" rel="stylesheet" type="text/css"><script>
1.1 mike 304: function getCookie(name) {
305: var params = location.search.substr(1).split("&");
306: for (var index = 0; index < params.length; index++) {
307: if (params[index] == name)
308: return "1";
309: var data = params[index].split("=");
310: if (data[0] == name)
311: return unescape(data[1]);
312: }
313: var cookies = document.cookie.split("; ");
314: for (var index = 0; index < cookies.length; index++) {
315: var data = cookies[index].split("=");
316: if (data[0] == name)
317: return unescape(data[1]);
318: }
319: return null;
320: }
1.205 sruby 321: </script><link href="the-option-element.html" rel="prev" title="4.10.12 The option element">
322: <link href="index.html#contents" rel="contents" title="Table of contents">
323: <link href="the-keygen-element.html" rel="next" title="4.10.14 The keygen element">
324: <body class="split chapter" onload="fixBrokenLink();"><div class="head" id="head">
1.1 mike 325: <p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
326:
327: <h1>HTML5</h1>
1.198 sruby 328: <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>
1.211 ! sruby 329: <h2 class="no-num no-toc" id="editor's-draft-date-1-january-1970">Editor's Draft 4 November 2012</h2>
1.85 mike 330: </div>
1.201 sruby 331:
332:
1.205 sruby 333: <nav class="prev_next">
334: <a href="the-option-element.html">← 4.10.12 The option element</a> –
335: <a href="index.html#contents">Table of contents</a> –
336: <a href="the-keygen-element.html">4.10.14 The keygen element →</a>
337: </nav>
1.1 mike 338:
1.85 mike 339: <h4 id="the-textarea-element"><span class="secno">4.10.13 </span>The <dfn><code>textarea</code></dfn> element</h4>
340:
341: <dl class="element"><dt><a href="element-definitions.html#element-dfn-categories" title="element-dfn-categories">Categories</a>:</dt>
1.159 sruby 342: <dd><a href="content-models.html#flow-content-1">Flow content</a>.</dd>
343: <dd><a href="content-models.html#phrasing-content-1">Phrasing content</a>.</dd>
344: <dd><a href="content-models.html#interactive-content-0">Interactive content</a>.</dd>
1.1 mike 345: <dd><a href="forms.html#category-listed" title="category-listed">Listed</a>, <a href="forms.html#category-label" title="category-label">labelable</a>, <a href="forms.html#category-submit" title="category-submit">submittable</a>, and <a href="forms.html#category-reset" title="category-reset">resettable</a> <a href="forms.html#form-associated-element">form-associated element</a>.</dd>
1.159 sruby 346: <dd><a href="content-models.html#palpable-content-0">Palpable content</a>.</dd>
1.25 mike 347: <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 348: <dd>Where <a href="content-models.html#phrasing-content-1">phrasing content</a> is expected.</dd>
1.25 mike 349: <dt><a href="element-definitions.html#element-dfn-content-model" title="element-dfn-content-model">Content model</a>:</dt>
1.1 mike 350: <dd><a href="content-models.html#text-content" title="text content">Text</a>.</dd>
1.25 mike 351: <dt><a href="element-definitions.html#element-dfn-attributes" title="element-dfn-attributes">Content attributes</a>:</dt>
1.1 mike 352: <dd><a href="global-attributes.html#global-attributes">Global attributes</a></dd>
353: <dd><code title="attr-fe-autofocus"><a href="attributes-common-to-form-controls.html#attr-fe-autofocus">autofocus</a></code></dd>
354: <dd><code title="attr-textarea-cols"><a href="#attr-textarea-cols">cols</a></code></dd>
355: <dd><code title="attr-textarea-dirname"><a href="#attr-textarea-dirname">dirname</a></code></dd>
356: <dd><code title="attr-fe-disabled"><a href="attributes-common-to-form-controls.html#attr-fe-disabled">disabled</a></code></dd>
357: <dd><code title="attr-fae-form"><a href="association-of-controls-and-forms.html#attr-fae-form">form</a></code></dd>
358: <dd><code title="attr-textarea-maxlength"><a href="#attr-textarea-maxlength">maxlength</a></code></dd>
359: <dd><code title="attr-fe-name"><a href="attributes-common-to-form-controls.html#attr-fe-name">name</a></code></dd>
360: <dd><code title="attr-textarea-placeholder"><a href="#attr-textarea-placeholder">placeholder</a></code></dd>
361: <dd><code title="attr-textarea-readonly"><a href="#attr-textarea-readonly">readonly</a></code></dd>
362: <dd><code title="attr-textarea-required"><a href="#attr-textarea-required">required</a></code></dd>
363: <dd><code title="attr-textarea-rows"><a href="#attr-textarea-rows">rows</a></code></dd>
364: <dd><code title="attr-textarea-wrap"><a href="#attr-textarea-wrap">wrap</a></code></dd>
1.159 sruby 365: <dt><a href="element-definitions.html#element-dfn-dom" title="element-dfn-dom">DOM interface</a>:</dt><!--TOPIC:DOM APIs-->
1.1 mike 366: <dd>
367: <pre class="idl">interface <dfn id="htmltextareaelement">HTMLTextAreaElement</dfn> : <a href="elements.html#htmlelement">HTMLElement</a> {
368: attribute boolean <a href="attributes-common-to-form-controls.html#dom-fe-autofocus" title="dom-fe-autofocus">autofocus</a>;
369: attribute unsigned long <a href="#dom-textarea-cols" title="dom-textarea-cols">cols</a>;
370: attribute DOMString <a href="#dom-textarea-dirname" title="dom-textarea-dirName">dirName</a>;
371: attribute boolean <a href="attributes-common-to-form-controls.html#dom-fe-disabled" title="dom-fe-disabled">disabled</a>;
372: readonly attribute <a href="the-form-element.html#htmlformelement">HTMLFormElement</a>? <a href="association-of-controls-and-forms.html#dom-fae-form" title="dom-fae-form">form</a>;
373: attribute long <a href="#dom-textarea-maxlength" title="dom-textarea-maxLength">maxLength</a>;
374: attribute DOMString <a href="attributes-common-to-form-controls.html#dom-fe-name" title="dom-fe-name">name</a>;
375: attribute DOMString <a href="#dom-textarea-placeholder" title="dom-textarea-placeholder">placeholder</a>;
376: attribute boolean <a href="#dom-textarea-readonly" title="dom-textarea-readOnly">readOnly</a>;
377: attribute boolean <a href="#dom-textarea-required" title="dom-textarea-required">required</a>;
378: attribute unsigned long <a href="#dom-textarea-rows" title="dom-textarea-rows">rows</a>;
379: attribute DOMString <a href="#dom-textarea-wrap" title="dom-textarea-wrap">wrap</a>;
380:
381: readonly attribute DOMString <a href="#dom-textarea-type" title="dom-textarea-type">type</a>;
382: attribute DOMString <a href="#dom-textarea-defaultvalue" title="dom-textarea-defaultValue">defaultValue</a>;
1.209 sruby 383: [TreatNullAs=EmptyString] attribute DOMString <a href="#dom-textarea-value" title="dom-textarea-value">value</a>;
1.1 mike 384: readonly attribute unsigned long <a href="#dom-textarea-textlength" title="dom-textarea-textLength">textLength</a>;
385:
1.206 sruby 386: readonly attribute boolean <a href="constraints.html#dom-cva-willvalidate" title="dom-cva-willValidate">willValidate</a>;
387: readonly attribute <a href="constraints.html#validitystate">ValidityState</a> <a href="constraints.html#dom-cva-validity" title="dom-cva-validity">validity</a>;
388: readonly attribute DOMString <a href="constraints.html#dom-cva-validationmessage" title="dom-cva-validationMessage">validationMessage</a>;
389: boolean <a href="constraints.html#dom-cva-checkvalidity" title="dom-cva-checkValidity">checkValidity</a>();
390: void <a href="constraints.html#dom-cva-setcustomvalidity" title="dom-cva-setCustomValidity">setCustomValidity</a>(DOMString error);
1.1 mike 391:
392: readonly attribute <a href="infrastructure.html#nodelist">NodeList</a> <a href="the-label-element.html#dom-lfe-labels" title="dom-lfe-labels">labels</a>;
393:
1.206 sruby 394: void <a href="textFieldSelection.html#dom-textarea/input-select" title="dom-textarea/input-select">select</a>();
395: attribute unsigned long <a href="textFieldSelection.html#dom-textarea/input-selectionstart" title="dom-textarea/input-selectionStart">selectionStart</a>;
396: attribute unsigned long <a href="textFieldSelection.html#dom-textarea/input-selectionend" title="dom-textarea/input-selectionEnd">selectionEnd</a>;
397: attribute DOMString <a href="textFieldSelection.html#dom-textarea/input-selectiondirection" title="dom-textarea/input-selectionDirection">selectionDirection</a>;
1.159 sruby 398:
1.206 sruby 399: void <a href="textFieldSelection.html#dom-textarea/input-setselectionrange" title="dom-textarea/input-setSelectionRange">setSelectionRange</a>(unsigned long start, unsigned long end, optional DOMString direction);
1.1 mike 400: };</pre>
401: </dd>
1.206 sruby 402: </dl><!--TOPIC:HTML--><p>The <code><a href="#the-textarea-element">textarea</a></code> element <a href="rendering.html#represents">represents</a> a
1.1 mike 403: multiline plain text edit control<span class="impl"> for the
404: element's <dfn id="concept-textarea-raw-value" title="concept-textarea-raw-value">raw
405: value</dfn></span>. The contents of the control represent the
1.85 mike 406: control's default value.</p>
407:
408: <div class="impl">
1.1 mike 409:
410: <p>The <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> of
411: a <code><a href="#the-textarea-element">textarea</a></code> control must be initially the empty
412: string.</p>
413:
414: <p>A newline in a <code><a href="#the-textarea-element">textarea</a></code> element, and in its <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a>, should separate
415: paragraphs for the purposes of the Unicode bidirectional algorithm.
416: This requirement may be implemented indirectly through the style
417: layer. For example, an HTML+CSS user agent could implement these
1.206 sruby 418: requirements by implementing the CSS 'unicode-bidi' property. <a href="references.html#refsBIDI">[BIDI]</a> <a href="references.html#refsCSS">[CSS]</a></p>
1.1 mike 419:
1.85 mike 420: </div>
421:
422: <p>The <dfn id="attr-textarea-readonly" title="attr-textarea-readonly"><code>readonly</code></dfn> attribute
1.1 mike 423: is a <a href="common-microsyntaxes.html#boolean-attribute">boolean attribute</a> used to control whether the text
1.85 mike 424: can be edited by the user or not.</p>
425:
1.193 sruby 426: <div class="example">
427:
428: <p>In this example, a text field is marked read-only because it
429: represents a read-only file:</p>
430:
431: <pre>Filename: <code>/etc/bash.bashrc</code>
432: <textarea name="buffer" readonly>
433: # System-wide .bashrc file for interactive bash(1) shells.
434:
435: # To enable the settings / commands in this file for login shells as well,
436: # this file has to be sourced in /etc/profile.
437:
438: # If not running interactively, don't do anything
439: [ -z "$PS1" ] &amp;&amp; return
440:
441: ...</textarea></pre>
442:
443: </div>
444:
1.85 mike 445: <div class="impl">
1.1 mike 446:
447: <p><strong>Constraint validation</strong>: If the <code title="attr-textarea-readonly"><a href="#attr-textarea-readonly">readonly</a></code> attribute is
448: specified on a <code><a href="#the-textarea-element">textarea</a></code> element, the element is
1.206 sruby 449: <a href="constraints.html#barred-from-constraint-validation">barred from constraint validation</a>.</p>
1.1 mike 450:
451: <p>A <code><a href="#the-textarea-element">textarea</a></code> element is <dfn id="concept-textarea-mutable" title="concept-textarea-mutable">mutable</dfn> if it is neither
452: <a href="attributes-common-to-form-controls.html#concept-fe-disabled" title="concept-fe-disabled">disabled</a> nor has a <code title="attr-textarea-readonly"><a href="#attr-textarea-readonly">readonly</a></code> attribute
453: specified.</p>
454:
455: <p>When a <code><a href="#the-textarea-element">textarea</a></code> is <a href="#concept-textarea-mutable" title="concept-textarea-mutable">mutable</a>, its <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> should be
456: editable by the user: the user agent should allow the user to edit,
457: insert, and remove text, and to insert and remove line breaks in the
1.85 mike 458: form of "LF" (U+000A) characters. Any time the user causes
1.1 mike 459: the element's <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw
1.206 sruby 460: value</a> to change, the user agent must <a href="webappapis.html#queue-a-task">queue a
461: task</a> to <a href="webappapis.html#fire-a-simple-event">fire a simple event</a> that bubbles named
1.1 mike 462: <code title="event-input">input</code> at the <code><a href="#the-textarea-element">textarea</a></code>
463: element. User agents may wait for a suitable break in the user's
464: interaction before queuing the task; for example, a user agent could
465: wait for the user to have not hit a key for 100ms, so as to only
466: fire the event when the user pauses, instead of continuously for
1.159 sruby 467: each keystroke.</p> <!-- same text is present in the <input> section
468: -->
1.4 mike 469:
1.1 mike 470: <p>A <code><a href="#the-textarea-element">textarea</a></code> element has a <dfn id="concept-textarea-dirty" title="concept-textarea-dirty">dirty value flag</dfn>, which must be
471: initially set to false, and must be set to true whenever the user
472: interacts with the control in a way that changes the <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a>.</p>
473:
474: <p>When the <code><a href="#the-textarea-element">textarea</a></code> element's <code><a href="infrastructure.html#textcontent">textContent</a></code>
475: IDL attribute changes value, if the element's <a href="#concept-textarea-dirty" title="concept-textarea-dirty">dirty value flag</a> is false,
476: then the element's <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw
477: value</a> must be set to the value of the element's
478: <code><a href="infrastructure.html#textcontent">textContent</a></code> IDL attribute.</p>
479:
1.206 sruby 480: <p>The <a href="constraints.html#concept-form-reset-control" title="concept-form-reset-control">reset
1.1 mike 481: algorithm</a> for <code><a href="#the-textarea-element">textarea</a></code> elements is to set the
482: element's <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">value</a> to
483: the value of the element's <code><a href="infrastructure.html#textcontent">textContent</a></code> IDL
484: attribute.</p>
485:
1.159 sruby 486: <!-- this next bit is also in the <input> Text/Search section -->
487: <!-- and something similar is in the session history section -->
1.1 mike 488: <p>If the element is <a href="#concept-textarea-mutable" title="concept-textarea-mutable">mutable</a>, the user agent
489: should allow the user to change the writing direction of the
490: element, setting it either to a left-to-right writing direction or a
491: right-to-left writing direction. If the user does so, the user agent
492: must then run the following steps:</p>
493:
494: <ol><li><p>Set the element's <code title="attr-dir"><a href="global-attributes.html#the-dir-attribute">dir</a></code>
495: attribute to "<code title="attr-dir-ltr"><a href="global-attributes.html#attr-dir-ltr">ltr</a></code>" if the user
496: selected a left-to-right writing direction, and "<code title="attr-dir-rtl"><a href="global-attributes.html#attr-dir-rtl">rtl</a></code>" if the user selected a
1.205 sruby 497: right-to-left writing direction.</li>
1.1 mike 498:
1.206 sruby 499: <li><p><a href="webappapis.html#queue-a-task">Queue a task</a> to <a href="webappapis.html#fire-a-simple-event">fire a simple
1.1 mike 500: event</a> that bubbles named <code title="event-input">input</code> at the <code><a href="#the-textarea-element">textarea</a></code>
1.205 sruby 501: element.</li>
1.1 mike 502:
1.85 mike 503: </ol></div>
504:
505: <p>The <dfn id="attr-textarea-cols" title="attr-textarea-cols"><code>cols</code></dfn>
1.1 mike 506: attribute specifies the expected maximum number of characters per
507: line. If the <code title="attr-textarea-cols"><a href="#attr-textarea-cols">cols</a></code> attribute
508: is specified, its value must be a <a href="common-microsyntaxes.html#valid-non-negative-integer">valid non-negative
509: integer</a> greater than zero. <span class="impl">If applying the
510: <a href="common-microsyntaxes.html#rules-for-parsing-non-negative-integers">rules for parsing non-negative integers</a> to the
511: attribute's value results in a number greater than zero, then the
512: element's <dfn id="attr-textarea-cols-value" title="attr-textarea-cols-value">character
1.85 mike 513: width</dfn> is that value; otherwise, it is 20.</span></p>
514:
515: <div class="impl">
1.1 mike 516:
517: <p>The user agent may use the <code><a href="#the-textarea-element">textarea</a></code> element's <a href="#attr-textarea-cols-value" title="attr-textarea-cols-value">character width</a> as a hint to
518: the user as to how many characters the server prefers per line
519: (e.g. for visual user agents by making the width of the control be
520: that many characters). In visual renderings, the user agent should
521: wrap the user's input in the rendering so that each line is no wider
522: than this number of characters.</p>
523:
1.85 mike 524: </div>
525:
526: <p>The <dfn id="attr-textarea-rows" title="attr-textarea-rows"><code>rows</code></dfn>
1.1 mike 527: attribute specifies the number of lines to show. If the <code title="attr-textarea-rows"><a href="#attr-textarea-rows">rows</a></code> attribute is specified, its
528: value must be a <a href="common-microsyntaxes.html#valid-non-negative-integer">valid non-negative integer</a> greater than
529: zero. <span class="impl">If applying the <a href="common-microsyntaxes.html#rules-for-parsing-non-negative-integers">rules for parsing
530: non-negative integers</a> to the attribute's value results in a
531: number greater than zero, then the element's <dfn id="attr-textarea-rows-value" title="attr-textarea-rows-value">character height</dfn> is that
1.85 mike 532: value; otherwise, it is 2.</span></p>
533:
534: <div class="impl">
1.1 mike 535:
536: <p>Visual user agents should set the height of the control to the
537: number of lines given by <a href="#attr-textarea-rows-value" title="attr-textarea-rows-value">character height</a>.</p>
538:
1.85 mike 539: </div>
540:
541: <p>The <dfn id="attr-textarea-wrap" title="attr-textarea-wrap"><code>wrap</code></dfn>
1.1 mike 542: attribute is an <a href="common-microsyntaxes.html#enumerated-attribute">enumerated attribute</a> with two keywords
543: and states: the <dfn id="attr-textarea-wrap-soft" title="attr-textarea-wrap-soft"><code>soft</code></dfn> keyword
544: which maps to the <a href="#attr-textarea-wrap-soft-state" title="attr-textarea-wrap-soft-state">Soft</a> state, and the
545: <dfn id="attr-textarea-wrap-hard" title="attr-textarea-wrap-hard"><code>hard</code></dfn> keyword
546: which maps to the <a href="#attr-textarea-wrap-hard-state" title="attr-textarea-wrap-hard-state">Hard</a> state. The
1.85 mike 547: <i>missing value default</i> is the <a href="#attr-textarea-wrap-soft-state" title="attr-textarea-wrap-soft-state">Soft</a> state.</p>
548:
549: <p>The <dfn id="attr-textarea-wrap-soft-state" title="attr-textarea-wrap-soft-state">Soft</dfn> state
1.1 mike 550: indicates that the text in the <code><a href="#the-textarea-element">textarea</a></code> is not to be
551: wrapped when it is submitted (though it can still be wrapped in the
1.85 mike 552: rendering).</p>
553:
554: <p>The <dfn id="attr-textarea-wrap-hard-state" title="attr-textarea-wrap-hard-state">Hard</dfn> state
1.1 mike 555: indicates that the text in the <code><a href="#the-textarea-element">textarea</a></code> is to have
556: newlines added by the user agent so that the text is wrapped when it
1.85 mike 557: is submitted.</p>
558:
559: <p>If the element's <code title="attr-textarea-wrap"><a href="#attr-textarea-wrap">wrap</a></code>
1.1 mike 560: attribute is in the <a href="#attr-textarea-wrap-hard-state" title="attr-textarea-wrap-hard-state">Hard</a> state, the <code title="attr-textarea-cols"><a href="#attr-textarea-cols">cols</a></code> attribute must be
1.85 mike 561: specified.</p>
562:
1.159 sruby 563: <!-- attr-textarea-wrap-off (attr-textarea-wrap-off-state): not
564: conforming; turns off the rendering of wrapping but otherwise acts
565: like 'soft' -->
1.85 mike 566:
567: <div class="impl">
1.1 mike 568:
569: <p>For historical reasons, the element's value is normalised in
570: three different ways for three different purposes. The <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> is the value as
571: it was originally set. It is not normalized. The <a href="#concept-textarea-api-value" title="concept-textarea-api-value">API value</a> is the value
572: used in the <code title="dom-textarea-value"><a href="#dom-textarea-value">value</a></code> IDL
1.85 mike 573: attribute. It is normalized so that line breaks use "LF" (U+000A) characters. Finally, there is the form submission <a href="attributes-common-to-form-controls.html#concept-fe-value" title="concept-fe-value">value</a>. It is normalized so that line
1.1 mike 574: breaks use U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF) character
575: pairs, and in addition, if necessary given the element's <code title="attr-textarea-wrap"><a href="#attr-textarea-wrap">wrap</a></code> attribute, additional line
576: breaks are inserted to wrap the text at the given width.</p>
577:
578: <p>The element's <dfn id="concept-textarea-api-value" title="concept-textarea-api-value">API
579: value</dfn> is defined to be the element's <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> with the
580: following transformation applied:</p>
581:
582: <ol><li><p>Replace every U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF)
583: character pair from the <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> with a single
1.205 sruby 584: "LF" (U+000A) character.</li>
1.1 mike 585:
586: <li><p>Replace every remaining U+000D CARRIAGE RETURN character from
587: the <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> with
1.205 sruby 588: a single "LF" (U+000A) character.</li>
1.1 mike 589:
590: </ol><p>The element's <a href="attributes-common-to-form-controls.html#concept-fe-value" title="concept-fe-value">value</a> is
591: defined to be the element's <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw value</a> with the
592: following transformation applied:</p>
593:
1.85 mike 594: <ol><li><p>Replace every occurrence of a "CR" (U+000D)
595: character not followed by a "LF" (U+000A) character, and
596: every occurrence of a "LF" (U+000A) character not preceded
597: by a "CR" (U+000D) character, by a two-character
1.1 mike 598: string consisting of a U+000D CARRIAGE RETURN U+000A LINE FEED
1.205 sruby 599: (CRLF) character pair.</li>
1.1 mike 600:
601: <li><p>If the element's <code title="attr-textarea-wrap"><a href="#attr-textarea-wrap">wrap</a></code> attribute is in the <a href="#attr-textarea-wrap-hard-state" title="attr-textarea-wrap-hard-state">Hard</a> state, insert
602: U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF) character pairs
603: into the string using a UA-defined algorithm so that each line has
604: no more than <a href="#attr-textarea-cols-value" title="attr-textarea-cols-value">character
605: width</a> characters. For the purposes of this requirement,
606: lines are delimited by the start of the string, the end of the
607: string, and U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF)
1.205 sruby 608: character pairs.</li>
1.1 mike 609:
1.85 mike 610: </ol></div>
611:
612: <p>The <dfn id="attr-textarea-maxlength" title="attr-textarea-maxlength"><code>maxlength</code></dfn>
1.1 mike 613: attribute is a <a href="attributes-common-to-form-controls.html#attr-fe-maxlength" title="attr-fe-maxlength">form control <code title="">maxlength</code> attribute</a> controlled by the
1.85 mike 614: <code><a href="#the-textarea-element">textarea</a></code> element's <a href="#concept-textarea-dirty" title="concept-textarea-dirty">dirty value flag</a>.</p>
615:
616: <p>If the <code><a href="#the-textarea-element">textarea</a></code> element has a <a href="attributes-common-to-form-controls.html#maximum-allowed-value-length">maximum allowed
1.1 mike 617: value length</a>, then the element's children must be such that
1.125 mike 618: the <a href="infrastructure.html#code-unit-length">code-unit length</a> of the value of the element's
1.1 mike 619: <code><a href="infrastructure.html#textcontent">textContent</a></code> IDL attribute is equal to or less than the
1.85 mike 620: element's <a href="attributes-common-to-form-controls.html#maximum-allowed-value-length">maximum allowed value length</a>.</p>
621:
622: <p>The <dfn id="attr-textarea-required" title="attr-textarea-required"><code>required</code></dfn> attribute
1.1 mike 623: is a <a href="common-microsyntaxes.html#boolean-attribute">boolean attribute</a>. When specified, the user will
1.85 mike 624: be required to enter a value before submitting the form.</p>
625:
626: <div class="impl">
1.1 mike 627:
628: <p><strong>Constraint validation</strong>: If the element has its
629: <code title="attr-textarea-required"><a href="#attr-textarea-required">required</a></code> attribute
630: specified, and the element is <a href="#concept-textarea-mutable" title="concept-textarea-mutable">mutable</a>, and the element's
631: <a href="attributes-common-to-form-controls.html#concept-fe-value" title="concept-fe-value">value</a> is the empty string,
1.206 sruby 632: then the element is <a href="constraints.html#suffering-from-being-missing">suffering from being missing</a>.</p>
1.1 mike 633:
1.85 mike 634: </div>
635:
636:
1.193 sruby 637: <!-- substantially similar text in the <input> section -->
1.85 mike 638:
639: <p>The <dfn id="attr-textarea-placeholder" title="attr-textarea-placeholder"><code>placeholder</code></dfn>
1.193 sruby 640: attribute represents a <em>short</em> hint (a word or short phrase)
641: intended to aid the user with data entry when the control has no
642: value. A hint could be a sample value or a brief description of the
643: expected format. The attribute, if specified, must have a value that
644: contains no "LF" (U+000A) or "CR" (U+000D)
645: characters.</p>
1.85 mike 646:
647: <p>The <code title="attr-textarea-placeholder"><a href="#attr-textarea-placeholder">placeholder</a></code>
1.1 mike 648: attribute should not be used as an alternative to a
1.193 sruby 649: <code><a href="the-label-element.html#the-label-element">label</a></code>. For a longer hint or other advisory text, the
650: <code title="attr-title"><a href="global-attributes.html#attr-title">title</a></code> attribute is more
651: appropriate.</p>
652:
653: <p class="note">These mechanisms are very similar but subtly
654: different: the hint given by the control's <code><a href="the-label-element.html#the-label-element">label</a></code> is
655: shown at all times; the short hint given in the <code title="attr-textarea-placeholder"><a href="#attr-textarea-placeholder">placeholder</a></code> attribute is
656: shown before the user enters a value; and the hint in the <code title="attr-title"><a href="global-attributes.html#attr-title">title</a></code> attribute is shown when the user
657: requests further help.</p>
1.85 mike 658:
659: <div class="impl">
1.1 mike 660:
661: <p>User agents should present this hint to the user, after having
662: <a href="common-microsyntaxes.html#strip-line-breaks" title="strip line breaks">stripped line breaks</a> from it,
663: when the element's <a href="attributes-common-to-form-controls.html#concept-fe-value" title="concept-fe-value">value</a> is
664: the empty string and the control is not focused (e.g. by displaying
665: it inside a blank unfocused control).</p>
666:
1.85 mike 667: </div>
668:
669: <p>The <dfn id="attr-textarea-dirname" title="attr-textarea-dirname"><code>dirname</code></dfn>
1.159 sruby 670: attribute is a <a href="form-submission.html#form-control-dirname-attribute">form control <code title="">dirname</code>
1.85 mike 671: attribute</a>.</p>
672:
673: <p>The <code title="attr-fae-form"><a href="association-of-controls-and-forms.html#attr-fae-form">form</a></code> attribute is used to
1.1 mike 674: explicitly associate the <code><a href="#the-textarea-element">textarea</a></code> element with its
675: <a href="association-of-controls-and-forms.html#form-owner">form owner</a>. The <code title="attr-fe-name"><a href="attributes-common-to-form-controls.html#attr-fe-name">name</a></code>
676: attribute represents the element's name. The <code title="attr-fe-disabled"><a href="attributes-common-to-form-controls.html#attr-fe-disabled">disabled</a></code> attribute is used to make
677: the control non-interactive and to prevent its value from being
678: submitted. The <code title="attr-fe-autofocus"><a href="attributes-common-to-form-controls.html#attr-fe-autofocus">autofocus</a></code>
1.85 mike 679: attribute controls focus.</p>
680:
1.159 sruby 681: <!--TOPIC:DOM APIs-->
1.85 mike 682: <dl class="domintro"><dt><var title="">textarea</var> . <code title="attr-textarea-type">type</code></dt>
1.1 mike 683:
684: <dd>
685:
686: <p>Returns the string "<code title="">textarea</code>".</p>
687:
688: </dd>
689:
690: <dt><var title="">textarea</var> . <code title="attr-textarea-value">value</code></dt>
691:
692: <dd>
693:
694: <p>Returns the current value of the element.</p>
695:
696: <p>Can be set, to change the value.</p>
697:
698: </dd>
699:
700: </dl><div class="impl">
701:
702: <p>The <dfn id="dom-textarea-cols" title="dom-textarea-cols"><code>cols</code></dfn>, <dfn id="dom-textarea-placeholder" title="dom-textarea-placeholder"><code>placeholder</code></dfn>,
703: <dfn id="dom-textarea-required" title="dom-textarea-required"><code>required</code></dfn>, <dfn id="dom-textarea-rows" title="dom-textarea-rows"><code>rows</code></dfn>, and <dfn id="dom-textarea-wrap" title="dom-textarea-wrap"><code>wrap</code></dfn> attributes must
704: <a href="common-dom-interfaces.html#reflect">reflect</a> the respective content attributes of the same
705: name. The <code title="dom-textarea-cols"><a href="#dom-textarea-cols">cols</a></code> and <code title="dom-textarea-rows"><a href="#dom-textarea-rows">rows</a></code> attributes are <a href="common-dom-interfaces.html#limited-to-only-non-negative-numbers-greater-than-zero">limited
706: to only non-negative numbers greater than zero</a>. The <code title="dom-textarea-cols"><a href="#dom-textarea-cols">cols</a></code> attribute's default value is
707: 20. The <code title="dom-textarea-rows"><a href="#dom-textarea-rows">rows</a></code> attribute's
708: default value is 2. The <dfn id="dom-textarea-dirname" title="dom-textarea-dirName"><code>dirName</code></dfn> IDL
709: attribute must <a href="common-dom-interfaces.html#reflect">reflect</a> the <code title="attr-textarea-dirname"><a href="#attr-textarea-dirname">dirname</a></code> content attribute. The
710: <dfn id="dom-textarea-maxlength" title="dom-textarea-maxLength"><code>maxLength</code></dfn> IDL
711: attribute must <a href="common-dom-interfaces.html#reflect">reflect</a> the <code title="attr-textarea-maxlength"><a href="#attr-textarea-maxlength">maxlength</a></code> content attribute,
712: <a href="common-dom-interfaces.html#limited-to-only-non-negative-numbers">limited to only non-negative numbers</a>. The <dfn id="dom-textarea-readonly" title="dom-textarea-readOnly"><code>readOnly</code></dfn> IDL
713: attribute must <a href="common-dom-interfaces.html#reflect">reflect</a> the <code title="attr-textarea-readonly"><a href="#attr-textarea-readonly">readonly</a></code> content
714: attribute.</p>
715:
716: <p>The <dfn id="dom-textarea-type" title="dom-textarea-type"><code>type</code></dfn> IDL
717: attribute must return the value "<code title="">textarea</code>".</p>
718:
719: <p>The <dfn id="dom-textarea-defaultvalue" title="dom-textarea-defaultValue"><code>defaultValue</code></dfn>
720: IDL attribute must act like the element's <code><a href="infrastructure.html#textcontent">textContent</a></code>
721: IDL attribute.</p>
722:
723: <p>The <dfn id="dom-textarea-value" title="dom-textarea-value"><code>value</code></dfn>
724: attribute must, on getting, return the element's <a href="#concept-textarea-api-value" title="concept-textarea-api-value">API value</a>; on setting, it
725: must set the element's <a href="#concept-textarea-raw-value" title="concept-textarea-raw-value">raw
726: value</a> to the new value, set the element's <a href="#concept-textarea-dirty" title="concept-textarea-dirty">dirty value flag</a> to true, and
727: should then move the text entry cursor position to the end of the
728: text field, unselecting any selected text and resetting the
729: selection direction to <i>none</i>.</p>
730:
731: <p>The <dfn id="dom-textarea-textlength" title="dom-textarea-textLength"><code>textLength</code></dfn> IDL
1.125 mike 732: attribute must return the <a href="infrastructure.html#code-unit-length">code-unit length</a> of the
1.1 mike 733: element's <a href="#concept-textarea-api-value" title="concept-textarea-api-value">API
734: value</a>.</p>
735:
1.206 sruby 736: <p>The <code title="dom-cva-willValidate"><a href="constraints.html#dom-cva-willvalidate">willValidate</a></code>, <code title="dom-cva-validity"><a href="constraints.html#dom-cva-validity">validity</a></code>, and <code title="dom-cva-validationMessage"><a href="constraints.html#dom-cva-validationmessage">validationMessage</a></code> IDL
737: attributes, and the <code title="dom-cva-checkValidity"><a href="constraints.html#dom-cva-checkvalidity">checkValidity()</a></code> and <code title="dom-cva-setCustomValidity"><a href="constraints.html#dom-cva-setcustomvalidity">setCustomValidity()</a></code>
738: methods, are part of the <a href="constraints.html#the-constraint-validation-api">constraint validation API</a>. The
1.189 sruby 739: <code title="dom-lfe-labels"><a href="the-label-element.html#dom-lfe-labels">labels</a></code> IDL attribute provides a
1.206 sruby 740: list of the element's <code><a href="the-label-element.html#the-label-element">label</a></code>s. The <code title="dom-textarea/input-select"><a href="textFieldSelection.html#dom-textarea/input-select">select()</a></code>, <code title="dom-textarea/input-selectionStart"><a href="textFieldSelection.html#dom-textarea/input-selectionstart">selectionStart</a></code>,
741: <code title="dom-textarea/input-selectionEnd"><a href="textFieldSelection.html#dom-textarea/input-selectionend">selectionEnd</a></code>,
742: <code title="dom-textarea/input-selectionDirection"><a href="textFieldSelection.html#dom-textarea/input-selectiondirection">selectionDirection</a></code>,
1.189 sruby 743: <code title="dom-textarea/input-setRangeText">setRangeText()</code>,
1.206 sruby 744: and <code title="dom-textarea/input-setSelectionRange"><a href="textFieldSelection.html#dom-textarea/input-setselectionrange">setSelectionRange()</a></code>
1.189 sruby 745: methods and IDL attributes expose the element's text selection. The
1.1 mike 746: <code title="dom-fe-autofocus"><a href="attributes-common-to-form-controls.html#dom-fe-autofocus">autofocus</a></code>, <code title="dom-fe-disabled"><a href="attributes-common-to-form-controls.html#dom-fe-disabled">disabled</a></code>, <code title="dom-fae-form"><a href="association-of-controls-and-forms.html#dom-fae-form">form</a></code>, and <code title="dom-fe-name"><a href="attributes-common-to-form-controls.html#dom-fe-name">name</a></code> IDL attributes are part of the
747: element's forms API.</p>
748:
1.85 mike 749: </div>
1.159 sruby 750: <!--TOPIC:HTML-->
1.85 mike 751:
752: <div class="example">
1.1 mike 753:
754: <p>Here is an example of a <code><a href="#the-textarea-element">textarea</a></code> being used for
755: unrestricted free-form text input in a form:</p>
756:
757: <pre><p>If you have any comments, please let us know: <textarea cols=80 name=comments></textarea></p></pre>
758:
759: <p>To specify a maximum length for the comments, one can use
760: the <code title="attr-textarea-maxlength"><a href="#attr-textarea-maxlength">maxlength</a></code>
761: attribute:</p>
762:
763: <pre><p>If you have any short comments, please let us know: <textarea cols=80 name=comments maxlength=200></textarea></p></pre>
764:
765: <p>To give a default value, text can be included inside the element:</p>
766:
767: <pre><p>If you have any comments, please let us know: <textarea cols=80 name=comments>You rock!</textarea></p></pre>
768:
769: <p>To have the browser submit <a href="global-attributes.html#the-directionality">the directionality</a> of
770: the element along with the value, the <code title="attr-textarea-dirname"><a href="#attr-textarea-dirname">dirname</a></code> attribute can be
771: specified:</p>
772:
773: <pre><p>If you have any comments, please let us know (you may use either English or Hebrew for your comments):
774: <textarea cols=80 name=comments dirname=comments.dir></textarea></p></pre>
775:
1.85 mike 776: </div>
777:
778:
779:
1.205 sruby 780:
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