Annotation of html5/spec-author-view/editing-apis.html, revision 1.5

1.1       mike        1: <!doctype html>
1.2       mike        2: <html lang="en-US-x-Hixie"><meta content="text/html; charset=utf-8" http-equiv="Content-Type"><title>7.8 Editing APIs &mdash; HTML5: Edition for Web Authors</title><link href="whatwg.css" rel="stylesheet"><style type="text/css">
1.1       mike        3:    pre { margin-left: 2em; white-space: pre-wrap; }
                      4:    h2 { margin: 3em 0 1em 0; }
                      5:    h3 { margin: 2.5em 0 1em 0; }
                      6:    h4 { margin: 2.5em 0 0.75em 0; }
                      7:    h5, h6 { margin: 2.5em 0 1em; }
                      8:    h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
                      9:    h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
                     10:    p { margin: 1em 0; }
                     11:    hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
                     12:    dl, dd { margin-top: 0; margin-bottom: 0; }
                     13:    dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
                     14:    dt + dt { margin-top: 0; }
                     15:    dd dt { margin-top: 0.25em; margin-bottom: 0; }
                     16:    dd p { margin-top: 0; }
                     17:    dd dl + p { margin-top: 1em; }
                     18:    dd table + p { margin-top: 1em; }
                     19:    p + * > li, dd li { margin: 1em 0; }
                     20:    dt, dfn { font-weight: bold; font-style: normal; }
1.4       mike       21:    i, em { font-style: italic; }
1.1       mike       22:    dt dfn { font-style: italic; }
                     23:    pre, code { font-size: inherit; font-family: monospace; font-variant: normal; }
                     24:    pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
                     25:    pre em { font-weight: bolder; font-style: normal; }
                     26:    @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } }
                     27:    var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
                     28:    table { border-collapse: collapse; border-style: hidden hidden none hidden; }
                     29:    table thead, table tbody { border-bottom: solid; }
                     30:    table tbody th:first-child { border-left: solid; }
                     31:    table tbody th { text-align: left; }
                     32:    table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
                     33:    blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
                     34: 
                     35:    .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; }
                     36:    .matrix, .matrix td { border: none; text-align: right; }
                     37:    .matrix { margin-left: 2em; }
                     38:    .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
                     39:    .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
                     40:    .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
                     41: 
                     42:    .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; }
                     43:    img.extra { float: right; }
                     44:    pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; }
                     45:    pre.idl :link, pre.idl :visited { color: inherit; background: transparent; }
                     46:    pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; }
                     47:    pre.css:first-line { color: #AAAA50; }
                     48:    dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #DDFFDD; }
                     49:    hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; }
                     50:    dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; }
                     51:    dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; }
                     52:    dl.domintro dd p { margin: 0.5em 0; }
                     53:    dl.switch { padding-left: 2em; }
                     54:    dl.switch > dt { text-indent: -1.5em; }
                     55:    dl.switch > dt:before { content: '\21AA'; padding: 0 0.5em 0 0; display: inline-block; width: 1em; text-align: right; line-height: 0.5em; }
                     56:    dl.triple { padding: 0 0 0 1em; }
                     57:    dl.triple dt, dl.triple dd { margin: 0; display: inline }
                     58:    dl.triple dt:after { content: ':'; }
                     59:    dl.triple dd:after { content: '\A'; white-space: pre; }
                     60:    .diff-old { text-decoration: line-through; color: silver; background: transparent; }
                     61:    .diff-chg, .diff-new { text-decoration: underline; color: green; background: transparent; }
                     62:    a .diff-new { border-bottom: 1px blue solid; }
                     63: 
                     64:    h2 { page-break-before: always; }
                     65:    h1, h2, h3, h4, h5, h6 { page-break-after: avoid; }
                     66:    h1 + h2, hr + h2.no-toc { page-break-before: auto; }
                     67: 
                     68:    p  > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]),
                     69:    li > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]), { border-bottom: solid #9999CC; }
                     70: 
                     71:    div.head { margin: 0 0 1em; padding: 1em 0 0 0; }
                     72:    div.head p { margin: 0; }
                     73:    div.head h1 { margin: 0; }
                     74:    div.head .logo { float: right; margin: 0 1em; }
                     75:    div.head .logo img { border: none } /* remove border from top image */
                     76:    div.head dl { margin: 1em 0; }
                     77:    div.head p.copyright, div.head p.alt { font-size: x-small; font-style: oblique; margin: 0; }
                     78: 
                     79:    body > .toc > li { margin-top: 1em; margin-bottom: 1em; }
                     80:    body > .toc.brief > li { margin-top: 0.35em; margin-bottom: 0.35em; }
                     81:    body > .toc > li > * { margin-bottom: 0.5em; }
                     82:    body > .toc > li > * > li > * { margin-bottom: 0.25em; }
                     83:    .toc, .toc li { list-style: none; }
                     84: 
                     85:    .brief { margin-top: 1em; margin-bottom: 1em; line-height: 1.1; }
                     86:    .brief li { margin: 0; padding: 0; }
                     87:    .brief li p { margin: 0; padding: 0; }
                     88: 
                     89:    .category-list { margin-top: -0.75em; margin-bottom: 1em; line-height: 1.5; }
                     90:    .category-list::before { content: '\21D2\A0'; font-size: 1.2em; font-weight: 900; }
                     91:    .category-list li { display: inline; }
                     92:    .category-list li:not(:last-child)::after { content: ', '; }
                     93:    .category-list li > span, .category-list li > a { text-transform: lowercase; }
                     94:    .category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
                     95: 
                     96:    .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
                     97:    .XXX > :first-child { margin-top: 0; }
                     98:    p .XXX { line-height: 3em; }
                     99:    .annotation { border: solid thin black; background: #0C479D; color: white; position: relative; margin: 8px 0 20px 0; }
                    100:    .annotation:before { position: absolute; left: 0; top: 0; width: 100%; height: 100%; margin: 6px -6px -6px 6px; background: #333333; z-index: -1; content: ''; }
                    101:    .annotation :link, .annotation :visited { color: inherit; }
                    102:    .annotation :link:hover, .annotation :visited:hover { background: transparent; }
                    103:    .annotation span { border: none ! important; }
                    104:    .note { color: green; background: transparent; font-family: sans-serif; }
                    105:    .warning { color: red; background: transparent; }
                    106:    .note, .warning { font-weight: bolder; font-style: italic; }
1.4       mike      107:    .note em, .warning em, .note i, .warning i { font-style: normal; }
1.1       mike      108:    p.note, div.note { padding: 0.5em 2em; }
                    109:    span.note { padding: 0 2em; }
                    110:    .note p:first-child, .warning p:first-child { margin-top: 0; }
                    111:    .note p:last-child, .warning p:last-child { margin-bottom: 0; }
                    112:    .warning:before { font-style: normal; }
                    113:    p.note:before { content: 'Note: '; }
                    114:    p.warning:before { content: '\26A0 Warning! '; }
                    115: 
                    116:    .bookkeeping:before { display: block; content: 'Bookkeeping details'; font-weight: bolder; font-style: italic; }
                    117:    .bookkeeping { font-size: 0.8em; margin: 2em 0; }
                    118:    .bookkeeping p { margin: 0.5em 2em; display: list-item; list-style: square; }
                    119:    .bookkeeping dt { margin: 0.5em 2em 0; }
                    120:    .bookkeeping dd { margin: 0 3em 0.5em; }
                    121: 
                    122:    h4 { position: relative; z-index: 3; }
                    123:    h4 + .element, h4 + div + .element { margin-top: -2.5em; padding-top: 2em; }
                    124:    .element {
                    125:      background: #EEEEFF;
                    126:      color: black;
                    127:      margin: 0 0 1em 0.15em;
                    128:      padding: 0 1em 0.25em 0.75em;
                    129:      border-left: solid #9999FF 0.25em;
                    130:      position: relative;
                    131:      z-index: 1;
                    132:    }
                    133:    .element:before {
                    134:      position: absolute;
                    135:      z-index: 2;
                    136:      top: 0;
                    137:      left: -1.15em;
                    138:      height: 2em;
                    139:      width: 0.9em;
                    140:      background: #EEEEFF;
                    141:      content: ' ';
                    142:      border-style: none none solid solid;
                    143:      border-color: #9999FF;
                    144:      border-width: 0.25em;
                    145:    }
                    146: 
                    147:    .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
                    148:    td > .example:only-child { margin: 0 0 0 0.1em; }
                    149: 
                    150:    ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
                    151:    ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
                    152:    ul.domTree li li { list-style: none; }
                    153:    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; }
                    154:    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; }
                    155:    ul.domTree span { font-style: italic; font-family: serif; }
                    156:    ul.domTree .t1 code { color: purple; font-weight: bold; }
                    157:    ul.domTree .t2 { font-style: normal; font-family: monospace; }
                    158:    ul.domTree .t2 .name { color: black; font-weight: bold; }
                    159:    ul.domTree .t2 .value { color: blue; font-weight: normal; }
                    160:    ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
                    161:    ul.domTree .t7 code, .domTree .t8 code { color: green; }
                    162:    ul.domTree .t10 code { color: teal; }
                    163: 
                    164:    body.dfnEnabled dfn { cursor: pointer; }
                    165:    .dfnPanel {
                    166:      display: inline;
                    167:      position: absolute;
                    168:      z-index: 10;
                    169:      height: auto;
                    170:      width: auto;
                    171:      padding: 0.5em 0.75em;
                    172:      font: small sans-serif, Droid Sans Fallback;
                    173:      background: #DDDDDD;
                    174:      color: black;
                    175:      border: outset 0.2em;
                    176:    }
                    177:    .dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; }
                    178:    .dfnPanel :link, .dfnPanel :visited { color: black; }
                    179:    .dfnPanel p { font-weight: bolder; }
                    180:    .dfnPanel * + p { margin-top: 0.25em; }
                    181:    .dfnPanel li { list-style-position: inside; }
                    182: 
                    183:    #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
                    184:    #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
                    185:    #configUI p label { display: block; }
                    186:    #configUI #updateUI, #configUI .loginUI { text-align: center; }
                    187:    #configUI input[type=button] { display: block; margin: auto; }
                    188: 
                    189:    fieldset { margin: 1em; padding: 0.5em 1em; }
                    190:    fieldset > legend + * { margin-top: 0; }
                    191:    fieldset > :last-child { margin-bottom: 0; }
                    192:    fieldset p { margin: 0.5em 0; }
                    193: 
                    194:   </style><link href="style.css" rel="stylesheet"><link href="http://www.w3.org/StyleSheets/TR/W3C-ED" rel="stylesheet" type="text/css"><script src="link-fixup.js" type="text/javascript"></script><style type="text/css">
                    195: 
                    196:    .applies thead th > * { display: block; }
                    197:    .applies thead code { display: block; }
                    198:    .applies tbody th { whitespace: nowrap; }
                    199:    .applies td { text-align: center; }
                    200:    .applies .yes { background: yellow; }
                    201: 
                    202:    .matrix, .matrix td { border: hidden; text-align: right; }
                    203:    .matrix { margin-left: 2em; }
                    204: 
                    205:    .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
                    206:    .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
                    207:    .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
                    208: 
                    209:    td.eg { border-width: thin; text-align: center; }
                    210: 
                    211:    #table-example-1 { border: solid thin; border-collapse: collapse; margin-left: 3em; }
                    212:    #table-example-1 * { font-family: "Essays1743", serif; line-height: 1.01em; }
                    213:    #table-example-1 caption { padding-bottom: 0.5em; }
                    214:    #table-example-1 thead, #table-example-1 tbody { border: none; }
                    215:    #table-example-1 th, #table-example-1 td { border: solid thin; }
                    216:    #table-example-1 th { font-weight: normal; }
                    217:    #table-example-1 td { border-style: none solid; vertical-align: top; }
                    218:    #table-example-1 th { padding: 0.5em; vertical-align: middle; text-align: center; }
                    219:    #table-example-1 tbody tr:first-child td { padding-top: 0.5em; }
                    220:    #table-example-1 tbody tr:last-child td { padding-bottom: 1.5em; }
                    221:    #table-example-1 tbody td:first-child { padding-left: 2.5em; padding-right: 0; width: 9em; }
                    222:    #table-example-1 tbody td:first-child::after { content: leader(". "); }
                    223:    #table-example-1 tbody td { padding-left: 2em; padding-right: 2em; }
                    224:    #table-example-1 tbody td:first-child + td { width: 10em; }
                    225:    #table-example-1 tbody td:first-child + td ~ td { width: 2.5em; }
                    226:    #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
                    227: 
                    228:    .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
                    229:    .apple-table-examples * { font-family: "Times", serif; }
                    230:    .apple-table-examples td, .apple-table-examples th { border: none; white-space: nowrap; padding-top: 0; padding-bottom: 0; }
                    231:    .apple-table-examples tbody th:first-child { border-left: none; width: 100%; }
                    232:    .apple-table-examples thead th:first-child ~ th { font-size: smaller; font-weight: bolder; border-bottom: solid 2px; text-align: center; }
                    233:    .apple-table-examples tbody th::after, .apple-table-examples tfoot th::after { content: leader(". ") }
                    234:    .apple-table-examples tbody th, .apple-table-examples tfoot th { font: inherit; text-align: left; }
                    235:    .apple-table-examples td { text-align: right; vertical-align: top; }
                    236:    .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
                    237:    .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
                    238:    .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
                    239:    .apple-table-examples sup { line-height: 0; }
                    240: 
                    241:    .details-example img { vertical-align: top; }
                    242: 
                    243:    #base64-table {
                    244:      white-space: nowrap;
                    245:      font-size: 0.6em;
                    246:      column-width: 6em;
                    247:      column-count: 5;
                    248:      column-gap: 1em;
                    249:      -moz-column-width: 6em;
                    250:      -moz-column-count: 5;
                    251:      -moz-column-gap: 1em;
                    252:      -webkit-column-width: 6em;
                    253:      -webkit-column-count: 5;
                    254:      -webkit-column-gap: 1em;
                    255:    }
                    256:    #base64-table thead { display: none; }
                    257:    #base64-table * { border: none; }
                    258:    #base64-table tbody td:first-child:after { content: ':'; }
                    259:    #base64-table tbody td:last-child { text-align: right; }
                    260: 
                    261:    #named-character-references-table {
                    262:      white-space: nowrap;
                    263:      font-size: 0.6em;
                    264:      column-width: 30em;
                    265:      column-gap: 1em;
                    266:      -moz-column-width: 30em;
                    267:      -moz-column-gap: 1em;
                    268:      -webkit-column-width: 30em;
                    269:      -webkit-column-gap: 1em;
                    270:    }
                    271:    #named-character-references-table > table > tbody > tr > td:first-child + td,
                    272:    #named-character-references-table > table > tbody > tr > td:last-child { text-align: center; }
                    273:    #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; }
                    274:    #named-character-references-table > table > tbody > tr#entity-CounterClockwiseContourIntegral > td:first-child { font-size: 0.5em; }
                    275: 
                    276:    .glyph.control { color: red; }
                    277: 
                    278:    @font-face {
                    279:      font-family: 'Essays1743';
                    280:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743.ttf');
                    281:    }
                    282:    @font-face {
                    283:      font-family: 'Essays1743';
                    284:      font-weight: bold;
                    285:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-Bold.ttf');
                    286:    }
                    287:    @font-face {
                    288:      font-family: 'Essays1743';
                    289:      font-style: italic;
                    290:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-Italic.ttf');
                    291:    }
                    292:    @font-face {
                    293:      font-family: 'Essays1743';
                    294:      font-style: italic;
                    295:      font-weight: bold;
                    296:      src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-BoldItalic.ttf');
                    297:    }
                    298: 
                    299:   </style><script type="text/javascript">
                    300:  function getCookie(name) {
                    301:    var params = location.search.substr(1).split("&");
                    302:    for (var index = 0; index < params.length; index++) {
                    303:      if (params[index] == name)
                    304:        return "1";
                    305:      var data = params[index].split("=");
                    306:      if (data[0] == name)
                    307:        return unescape(data[1]);
                    308:    }
                    309:    var cookies = document.cookie.split("; ");
                    310:    for (var index = 0; index < cookies.length; index++) {
                    311:      var data = cookies[index].split("=");
                    312:      if (data[0] == name)
                    313:        return unescape(data[1]);
                    314:    }
                    315:    return null;
                    316:  }
                    317:  function load(script) {
                    318:    var e = document.createElement('script');
                    319:    e.setAttribute('src', script + '?' + encodeURIComponent(location) + '&' + encodeURIComponent(document.referrer));
                    320:    document.body.appendChild(e);
                    321:  }
                    322:  function init() {
                    323:    if (location.search == '?slow-browser')
                    324:      return;
                    325:    var configUI = document.createElement('div');
                    326:    configUI.id = 'configUI';
                    327:    document.body.appendChild(configUI);
                    328:    if (document.getElementById('head'))
                    329:      load('toc.js');
                    330:    load('dfn.js');
                    331:    if (getCookie('profile') == '1')
                    332:      document.getElementsByTagName('h2')[0].textContent += '; load: ' + (new Date() - loadTimer) + 'ms';
                    333:    fixBrokenLink();
                    334:  }
                    335: </script><script src="dfn.js" type="text/javascript"></script><script src="toc.js" type="text/javascript"></script><link href="dnd.html" rel="prev" title="7.7 Drag and drop">
                    336:   <link href="Overview.html#contents" rel="contents" title="Table of contents">
                    337:   <link href="syntax.html" rel="next" title="8 The HTML syntax">
                    338:   <body class="split chapter"><div class="head" id="head">
                    339: <div aria-haspopup="true" id="jumpIndexA-button" role="button" tabindex="0">jump
                    340: <div id="jumpIndexA"><ul><li><a class="noindex" href="the-a-element.html#the-a-element">a</a><a class="noindex" href="the-abbr-element.html#the-abbr-element">abbr</a><a class="noindex" href="the-address-element.html#the-address-element">address</a><a class="noindex" href="the-area-element.html#the-area-element">area</a><a class="noindex" href="the-article-element.html#the-article-element">article</a><a class="noindex" href="the-aside-element.html#the-aside-element">aside</a><a class="noindex" href="the-audio-element.html#the-audio-element">audio</a></ul><ul><li><a class="noindex" href="the-b-element.html#the-b-element">b</a><a class="noindex" href="the-base-element.html#the-base-element">base</a><a class="noindex" href="the-bdi-element.html#the-bdi-element">bdi</a><a class="noindex" href="the-bdo-element.html#the-bdo-element">bdo</a><a class="noindex" href="the-blockquote-element.html#the-blockquote-element">blockquote</a><a class="noindex" 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href="the-html-element.html#the-html-element">html</a></ul><ul><li><a class="noindex" href="the-i-element.html#the-i-element">i</a><a class="noindex" href="the-iframe-element.html#the-iframe-element">iframe</a><a class="noindex" href="the-img-element.html#the-img-element">img</a><a class="noindex" href="the-input-element.html#the-input-element">input</a><a class="noindex" href="the-ins-element.html#the-ins-element">ins</a><a class="noindex" href="the-kbd-element.html#the-kbd-element">kbd</a><a class="noindex" href="the-keygen-element.html#the-keygen-element">keygen</a></ul><ul><li><a class="noindex" href="the-label-element.html#the-label-element">label</a><a class="noindex" href="the-legend-element.html#the-legend-element">legend</a><a class="noindex" href="the-li-element.html#the-li-element">li</a><a class="noindex" href="the-link-element.html#the-link-element">link</a><a class="noindex" href="the-map-element.html#the-map-element">map</a><a class="noindex" 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href="the-span-element.html#the-span-element">span</a></ul><ul><li><a class="noindex" href="the-strong-element.html#the-strong-element">strong</a><a class="noindex" href="the-style-element.html#the-style-element">style</a><a class="noindex" href="the-sub-and-sup-elements.html#the-sub-and-sup-elements">sub</a><a class="noindex" href="the-summary-element.html#the-summary-element">summary</a><a class="noindex" href="the-sub-and-sup-elements.html#the-sub-and-sup-elements">sup</a></ul><ul><li><a class="noindex" href="the-table-element.html#the-table-element">table</a><a class="noindex" href="the-tbody-element.html#the-tbody-element">tbody</a><a class="noindex" href="the-td-element.html#the-td-element">td</a><a class="noindex" href="the-textarea-element.html#the-textarea-element">textarea</a><a class="noindex" href="the-tfoot-element.html#the-tfoot-element">tfoot</a><a class="noindex" href="the-th-element.html#the-th-element">th</a><a class="noindex" href="the-thead-element.html#the-thead-element">thead</a><a class="noindex" href="the-time-element.html#the-time-element">time</a><a class="noindex" href="the-title-element.html#the-title-element">title</a></ul><ul><li><a class="noindex" href="the-tr-element.html#the-tr-element">tr</a><a class="noindex" href="the-track-element.html#the-track-element">track</a><a class="noindex" href="the-u-element.html#the-u-element">u</a><a class="noindex" href="the-ul-element.html#the-ul-element">ul</a><a class="noindex" href="the-var-element.html#the-var-element">var</a><a class="noindex" href="the-video-element.html#the-video-element">video</a><a class="noindex" href="the-wbr-element.html#the-wbr-element">wbr</a></ul><ul class="jumpIndexA-other"><li><a class="noindex" href="global-attributes.html#global-attributes">global attributes</a><a class="noindex" href="index-of-terms.html#index-of-terms">terms</a></ul></div></div>
                    341: <script src="jump-indexes.js"></script><p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
                    342: 
                    343:    <h1>HTML5: Edition for Web Authors</h1>
                    344:    
                    345:    </div><div class="prev_next">
                    346:    <a href="dnd.html">&larr; 7.7 Drag and drop</a> &ndash;
                    347:    <a href="Overview.html#contents">Table of contents</a> &ndash;
                    348:    <a href="syntax.html">8 The HTML syntax &rarr;</a>
                    349:   </div>
                    350: 
                    351:   <h3 id="editing-apis"><span class="secno">7.8 </span>Editing APIs</h3><dl class="domintro"><dt><var title="">document</var> . <code id="dom-document-execcommand" title="dom-document-execCommand"><a class="full-spec-link" href="http://dev.w3.org/html5/spec/dnd.html#execCommand" title='Read about this "execCommand" reference in the full HTML5 spec.'>execCommand</a></code>(<var title="">commandId</var> [, <var title="">showUI</var> [, <var title="">value</var> ] ] )</dt>
                    352: 
                    353:    <dd>
                    354: 
                    355:     <p>Runs the action specified by the first argument, as described
                    356:     in the list below. The second and third arguments sometimes affect
                    357:     the action. (If they don't they are ignored.)</p>
                    358: 
                    359:    </dd>
                    360: 
                    361:    <dt><var title="">document</var> . <code id="dom-document-querycommandenabled" title="dom-document-queryCommandEnabled"><a href="#dom-document-querycommandenabled">queryCommandEnabled</a></code>(<var title="">commandId</var>)</dt>
                    362: 
                    363:    <dd>
                    364: 
                    365:     <p>Returns whether the given command is enabled, as described in the list below.</p>
                    366: 
                    367:    </dd>
                    368: 
                    369:    <dt><var title="">document</var> . <code id="dom-document-querycommandindeterm" title="dom-document-queryCommandIndeterm"><a href="#dom-document-querycommandindeterm">queryCommandIndeterm</a></code>(<var title="">commandId</var>)</dt>
                    370: 
                    371:    <dd>
                    372: 
                    373:     <p>Returns whether the given command is indeterminate, as described in the list below.</p>
                    374: 
                    375:    </dd>
                    376: 
                    377:    <dt><var title="">document</var> . <code id="dom-document-querycommandstate" title="dom-document-queryCommandState"><a href="#dom-document-querycommandstate">queryCommandState</a></code>(<var title="">commandId</var>)</dt>
                    378: 
                    379:    <dd>
                    380: 
                    381:     <p>Returns the state of the command, as described in the list below.</p>
                    382: 
                    383:    </dd>
                    384: 
                    385:    <dt><var title="">document</var> . <code id="dom-document-querycommandsupported" title="dom-document-queryCommandSupported"><a href="#dom-document-querycommandsupported">queryCommandSupported</a></code>(<var title="">commandId</var>)</dt>
                    386: 
                    387:    <dd>
                    388: 
                    389:     <p>Returns true if the command is supported; otherwise, returns false.</p>
                    390: 
                    391:    </dd>
                    392: 
                    393:    <dt><var title="">document</var> . <code id="dom-document-querycommandvalue" title="dom-document-queryCommandValue"><a href="#dom-document-querycommandvalue">queryCommandValue</a></code>(<var title="">commandId</var>)</dt>
                    394: 
                    395:    <dd>
                    396: 
                    397:     <p>Returns the value of the command, as described in the list below.</p>
                    398: 
                    399:    </dd>
                    400: 
                    401:   </dl><p>A document is <dfn aria-haspopup="true" id="ready-for-editing-host-commands" role="button" tabindex="0">ready for editing host commands</dfn> if it
                    402:   has a selection that is entirely within an <a class="full-spec-link" href="http://dev.w3.org/html5/spec/editing.html#editing-host" title='Read about this "editing host" reference in the full HTML5 spec.'>editing
                    403:   host</a>, or if it has no selection but its caret is inside an
                    404:   <a class="full-spec-link" href="http://dev.w3.org/html5/spec/editing.html#editing-host" title='Read about this "editing host" reference in the full HTML5 spec.'>editing host</a>.<p>The possible values for <var title="">commandId</var>, and their
                    405:   corresponding meanings, are as follows. <dl><dt><dfn aria-haspopup="true" id="command-bold" role="button" tabindex="0"><code>bold</code></dfn></dt>
                    406:    <dd><strong>Summary</strong>: Toggles whether the selection is bold.</dd>
                    407:    
                    408:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_0">ready for
                    409:    editing host commands</a>.</dd>
                    410:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    411:    <dd><strong>State</strong>: True if the selection, or the caret, if
                    412:    there is no selection, is, or is contained within, a
                    413:    <code><a href="the-b-element.html#the-b-element" id="b_17">b</a></code> element. False otherwise.</dd>
                    414:    <dd><strong>Value</strong>: The string "<code title="">true</code>"
                    415:    if the expression given for the "State" above is true, the string
                    416:    "<code title="">false</code>" otherwise.</dd>
                    417: 
                    418:    <dt><dfn aria-haspopup="true" id="command-createlink" role="button" tabindex="0"><code>createLink</code></dfn></dt>
                    419:    <dd><strong>Summary</strong>: Toggles whether the selection is a
                    420:    link or not. If the second argument is true, and a link is to be
                    421:    added, the user agent will ask the user for the address. Otherwise,
                    422:    the third argument will be used as the address.</dd>
                    423:    
                    424:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_1">ready for
                    425:    editing host commands</a>.</dd>
                    426:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    427:    <dd><strong>State</strong>: Always false.</dd>
                    428:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    429: 
                    430:    <dt><dfn aria-haspopup="true" id="command-delete" role="button" tabindex="0"><code>delete</code></dfn></dt>
                    431:    <dd><strong>Summary</strong>: Deletes the selection or the
                    432:    character before the cursor.</dd>
                    433:    
                    434:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_2">ready for
                    435:    editing host commands</a>.</dd>
                    436:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    437:    <dd><strong>State</strong>: Always false.</dd>
                    438:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    439: 
                    440:    <dt><dfn aria-haspopup="true" id="command-formatblock" role="button" tabindex="0"><code>formatBlock</code></dfn></dt>
                    441:    <dd><strong>Summary</strong>: Wraps the selection in the element
                    442:    given by the third argument. If the third argument doesn't
                    443:    specify an element that is a <dfn aria-haspopup="true" id="formatblock-candidate" role="button" tabindex="0"><code title="">formatBlock</code>
                    444:    candidate</dfn>, does nothing.</dd>
                    445:    
                    446:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_3">ready for
                    447:    editing host commands</a>.</dd>
                    448:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    449:    <dd><strong>State</strong>: Always false.</dd>
                    450:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    451: 
                    452:    <dt><dfn aria-haspopup="true" id="command-forwarddelete" role="button" tabindex="0"><code>forwardDelete</code></dfn></dt>
                    453:    <dd><strong>Summary</strong>: Deletes the selection or the
                    454:    character after the cursor.</dd>
                    455:    
                    456:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_4">ready for
                    457:    editing host commands</a>.</dd>
                    458:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    459:    <dd><strong>State</strong>: Always false.</dd>
                    460:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    461: 
                    462:    <dt><dfn aria-haspopup="true" id="command-insertimage" role="button" tabindex="0"><code>insertImage</code></dfn></dt>
                    463:    <dd><strong>Summary</strong>: Toggles whether the selection is an
                    464:    image or not. If the second argument is true, and an image is to be
                    465:    added, the user agent will ask the user for the address. Otherwise,
                    466:    the third argument will be used as the address.</dd>
                    467:    
                    468:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_5">ready for
                    469:    editing host commands</a>.</dd>
                    470:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    471:    <dd><strong>State</strong>: Always false.</dd>
                    472:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    473: 
                    474:    <dt><dfn aria-haspopup="true" id="command-inserthtml" role="button" tabindex="0"><code>insertHTML</code></dfn></dt>
                    475:    <dd><strong>Summary</strong>: Replaces the selection with the value
                    476:    of the third argument parsed as HTML.</dd>
                    477:    
                    478:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_6">ready for
                    479:    editing host commands</a>.</dd>
                    480:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    481:    <dd><strong>State</strong>: Always false.</dd>
                    482:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    483: 
                    484:    <dt><dfn aria-haspopup="true" id="command-insertlinebreak" role="button" tabindex="0"><code>insertLineBreak</code></dfn></dt>
                    485:    <dd><strong>Summary</strong>: Inserts a line break.</dd>
                    486:    
                    487:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_7">ready for
                    488:    editing host commands</a>.</dd>
                    489:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    490:    <dd><strong>State</strong>: Always false.</dd>
                    491:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    492: 
                    493:    <dt><dfn aria-haspopup="true" id="command-insertorderedlist" role="button" tabindex="0"><code>insertOrderedList</code></dfn></dt>
                    494:    <dd><strong>Summary</strong>: Toggles whether the selection is an ordered list.</dd>
                    495:    
                    496:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_8">ready for
                    497:    editing host commands</a>.</dd>
                    498:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    499:    <dd><strong>State</strong>: Always false.</dd>
                    500:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    501: 
                    502:    <dt><dfn aria-haspopup="true" id="command-insertunorderedlist" role="button" tabindex="0"><code>insertUnorderedList</code></dfn></dt>
                    503:    <dd><strong>Summary</strong>: Toggles whether the selection is an unordered list.</dd>
                    504:    
                    505:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_9">ready for
                    506:    editing host commands</a>.</dd>
                    507:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    508:    <dd><strong>State</strong>: Always false.</dd>
                    509:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    510: 
                    511:    <dt><dfn aria-haspopup="true" id="command-insertparagraph" role="button" tabindex="0"><code>insertParagraph</code></dfn></dt>
                    512:    <dd><strong>Summary</strong>: Inserts a paragraph break.</dd>
                    513:    
                    514:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_10">ready for
                    515:    editing host commands</a>.</dd>
                    516:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    517:    <dd><strong>State</strong>: Always false.</dd>
                    518:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    519: 
                    520:    <dt><dfn aria-haspopup="true" id="command-inserttext" role="button" tabindex="0"><code>insertText</code></dfn></dt>
                    521:    <dd><strong>Summary</strong>: Inserts the text given in the third parameter.</dd>
                    522:    
                    523:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_11">ready for
                    524:    editing host commands</a>.</dd>
                    525:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    526:    <dd><strong>State</strong>: Always false.</dd>
                    527:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    528: 
                    529:    <dt><dfn aria-haspopup="true" id="command-italic" role="button" tabindex="0"><code>italic</code></dfn></dt>
                    530:    <dd><strong>Summary</strong>: Toggles whether the selection is italic.</dd>
                    531:    
                    532:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_12">ready for
                    533:    editing host commands</a>.</dd>
                    534:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    535:    <dd><strong>State</strong>: True if the selection, or the caret, if
                    536:    there is no selection, is, or is contained within, a
                    537:    <code><a href="the-i-element.html#the-i-element" id="i_26">i</a></code> element. False otherwise.</dd>
                    538:    <dd><strong>Value</strong>: The string "<code title="">true</code>"
                    539:    if the expression given for the "State" above is true, the string
                    540:    "<code title="">false</code>" otherwise.</dd>
                    541: 
                    542:    <dt><dfn aria-haspopup="true" id="command-redo" role="button" tabindex="0"><code>redo</code></dfn></dt>
                    543:    <dd><strong>Summary</strong>: Acts as if the user had requested a redo.</dd>
                    544:    
                    545:    <dd><strong>Enabled When</strong>: The <span>undo position</span>
                    546:    is not at the end of the <span>undo transaction
                    547:    history</span>.</dd>
                    548:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    549:    <dd><strong>State</strong>: Always false.</dd>
                    550:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    551: 
                    552:    <dt><dfn aria-haspopup="true" id="command-selectall" role="button" tabindex="0"><code>selectAll</code></dfn></dt>
                    553:    <dd><strong>Summary</strong>: Selects all the editable content.</dd>
                    554:    
                    555:    <dd><strong>Enabled When</strong>: Always.</dd>
                    556:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    557:    <dd><strong>State</strong>: Always false.</dd>
                    558:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    559: 
                    560:    <dt><dfn aria-haspopup="true" id="command-subscript" role="button" tabindex="0"><code>subscript</code></dfn></dt>
                    561:    <dd><strong>Summary</strong>: Toggles whether the selection is subscripted.</dd>
                    562:    
                    563:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_13">ready for
                    564:    editing host commands</a>.</dd>
                    565:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    566:    <dd><strong>State</strong>: True if the selection, or the caret, if
                    567:    there is no selection, is, or is contained within, a
                    568:    <code><a href="the-sub-and-sup-elements.html#the-sub-and-sup-elements" id="sub_7">sub</a></code> element. False otherwise.</dd>
                    569:    <dd><strong>Value</strong>: The string "<code title="">true</code>"
                    570:    if the expression given for the "State" above is true, the string
                    571:    "<code title="">false</code>" otherwise.</dd>
                    572: 
                    573:    <dt><dfn aria-haspopup="true" id="command-superscript" role="button" tabindex="0"><code>superscript</code></dfn></dt>
                    574:    <dd><strong>Summary</strong>: Toggles whether the selection is superscripted.</dd>
                    575:    
                    576:    <dd><strong>Enabled When</strong>: The document is <a href="#ready-for-editing-host-commands" id="ready-for-editing-host-commands_14">ready for
                    577:    editing host commands</a>.</dd>
                    578:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    579:    <dd><strong>State</strong>: True if the selection, or the caret, if
                    580:    there is no selection, is, or is contained within, a
                    581:    <code><a href="the-sub-and-sup-elements.html#the-sub-and-sup-elements" id="sup_5">sup</a></code> element. False otherwise.</dd>
                    582:    <dd><strong>Value</strong>: The string "<code title="">true</code>"
                    583:    if the expression given for the "State" above is true, the string
                    584:    "<code title="">false</code>" otherwise.</dd>
                    585: 
                    586:    <dt><dfn aria-haspopup="true" id="command-undo" role="button" tabindex="0"><code>undo</code></dfn></dt>
                    587:    <dd><strong>Summary</strong>: Acts as if the user had requested an undo.</dd>
                    588:    
                    589:    <dd><strong>Enabled When</strong>: The <span>undo position</span>
                    590:    is not at the start of the <span>undo transaction
                    591:    history</span>.</dd>
                    592:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    593:    <dd><strong>State</strong>: Always false.</dd>
                    594:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    595: 
                    596:    <dt><dfn aria-haspopup="true" id="command-unlink" role="button" tabindex="0"><code>unlink</code></dfn></dt>
                    597:    <dd><strong>Summary</strong>: Removes all links from the selection.</dd>
                    598:    
                    599:    <dd><strong>Enabled When</strong>: The document has a selection
                    600:    that is entirely within an <a class="full-spec-link" href="http://dev.w3.org/html5/spec/editing.html#editing-host" title='Read about this "editing host" reference in the full HTML5 spec.'>editing host</a> and that
                    601:    contains (either partially or completely) at least one
1.5     ! mike      602:    <code><a href="the-a-element.html#the-a-element" id="a_59">a</a></code> element that has an <code title="attr-hyperlink-href"><a href="links.html#attr-hyperlink-href" id="href_31">href</a></code> attribute.</dd>
1.1       mike      603:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    604:    <dd><strong>State</strong>: Always false.</dd>
                    605:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    606: 
                    607:    <dt><dfn aria-haspopup="true" id="command-unselect" role="button" tabindex="0"><code>unselect</code></dfn></dt>
                    608:    <dd><strong>Summary</strong>: Unselects everything.</dd>
                    609:    
                    610:    <dd><strong>Enabled When</strong>: Always.</dd>
                    611:    <dd><strong>Indeterminate When</strong>: Never.</dd>
                    612:    <dd><strong>State</strong>: Always false.</dd>
                    613:    <dd><strong>Value</strong>: Always the string "<code title="">false</code>".</dd>
                    614: 
                    615:    
                    616:    
                    617:    
                    618:    
                    619:    
                    620:    
                    621: 
                    622:    
                    623:    
                    624:    
                    625:    
                    626:    
                    627:    
                    628: 
                    629:   </dl>

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