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peeks-pokes-and-pointers.html
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peeks-pokes-and-pointers.html
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<!DOCTYPE html>
<meta charset=utf-8>
<title>HTML5 po ruce a do kapsy</title>
<style>
html,body,div,span,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,abbr,address,cite,code,del,dfn,em,img,ins,kbd,q,samp,small,strong,sub,sup,var,b,i,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,figure,footer,header,hgroup,menu,nav,section,menu,time,mark,audio,video{margin:0;padding:0;border:0;outline:0;font-size:100%;vertical-align:baseline;background:transparent}
article,aside,figure,footer,header,hgroup,nav,section{display:block}
nav ul{list-style:none}
blockquote,q{quotes:none}
blockquote:before,blockquote:after,q:before,q:after{content:'';content:none}
a{margin:0;padding:0;font-size:100%;vertical-align:baseline;background:transparent}
ins{background-color:#ff9;color:#000;text-decoration:none}
mark{background-color:#ff9;color:#000;font-style:italic;font-weight:bold}
del{text-decoration:line-through}
abbr[title],dfn[title]{border-bottom:1px dotted #000;cursor:help}
table{border-collapse:collapse;border-spacing:0}
hr{display:block;height:1px;border:0;border-top:1px solid #ccc;margin:1em 0;padding:0}
input,select{vertical-align:middle}
@font-face{
font-family:'ChunkFiveRegular';
src:url('f/chunk-webfont.eot');
src:local('☺'),url('f/chunk-webfont.woff') format('woff'),url('f/chunk-webfont.ttf') format('truetype'),url('f/chunk-webfont.svg#webfontp2unCWQ0') format('svg');
font-weight:normal;
font-style:normal;
}
@font-face {
font-family: 'LatinModernRoman10Regular';
src: url('f/lmroman10-regular-webfont.eot');
src: local('☺'), url('f/lmroman10-regular-webfont.woff') format('woff'), url('f/lmroman10-regular-webfont.ttf') format('truetype'), url('f/lmroman10-regular-webfont.svg#webfontg3VAmqr8') format('svg');
font-weight: normal;
font-style: normal;
}
@font-face {
font-family: 'LatinModernRomanSlanted10Regu';
src: url('f/lmromanslant10-regular-webfont.eot');
src: local('☺'), url('f/lmromanslant10-regular-webfont.woff') format('woff'), url('f/lmromanslant10-regular-webfont.ttf') format('truetype'), url('f/lmromanslant10-regular-webfont.svg#webfont5pLJWgYw') format('svg');
font-weight: normal;
font-style: italic;
}
@font-face {
font-family: 'LatinModernRoman10Bold';
src: url('f/lmroman10-bold-webfont.eot');
src: local('☺'), url('f/lmroman10-bold-webfont.woff') format('woff'), url('f/lmroman10-bold-webfont.ttf') format('truetype'), url('f/lmroman10-bold-webfont.svg#webfontDIaNd4lG') format('svg');
font-weight: bold;
font-style: normal;
}
@font-face {
font-family: 'LatinModernRoman10BoldItalic';
src: url('f/lmroman10-bolditalic-webfont.eot');
src: local('☺'), url('f/lmroman10-bolditalic-webfont.woff') format('woff'), url('f/lmroman10-bolditalic-webfont.ttf') format('truetype'), url('f/lmroman10-bolditalic-webfont.svg#webfontVm6n5sgb') format('svg');
font-weight: bold;
font-style: italic;
}
@font-face {
font-family: 'LatinModernMono10Regular';
src: url('f/lmmono10-regular-webfont.eot');
src: local('☺'), url('f/lmmono10-regular-webfont.woff') format('woff'), url('f/lmmono10-regular-webfont.ttf') format('truetype'), url('f/lmmono10-regular-webfont.svg#webfontThQaD2ST') format('svg');
font-weight: normal;
font-style: normal;
}
@font-face {
font-family: 'LatinModernMonoSlanted10Regul';
src: url('f/lmmonoslant10-regular-webfont.eot');
src: local('☺'), url('f/lmmonoslant10-regular-webfont.woff') format('woff'), url('f/lmmonoslant10-regular-webfont.ttf') format('truetype'), url('f/lmmonoslant10-regular-webfont.svg#webfontpL2TNuMK') format('svg');
font-weight: normal;
font-style: italic;
}
body{
font:100%/1.4 'LatinModernRoman10Regular',serif;
margin:0 auto 2em auto;
width:50.3em;
background:tan;
color:black;
}
code{
font-family:'LatinModernMono10Regular',monospace;
font-weight:normal;
}
code i{
font-family:'LatinModernMonoSlanted10Regul',monospace;
font-style:italic;
}
i{
font-family:'LatinModernRomanSlanted10Regu',serif;
}
b,h2 span{
font-family:'LatinModernRoman10Bold',serif;
font-weight:bold;
}
h1,h2{
font-family:ChunkFiveRegular,serif;
font-weight:normal;
text-shadow:1px 1px 1px #fcc;
}
h1{
font-size:48px;
line-height:1.4;
text-align:center;
border-bottom:12px solid;
}
h2{
font-size:xx-large;
line-height:1.4;
text-align:left;
width:100%;
border-bottom:1px solid;
margin-bottom:3px;
}
h2 span{
float:right;
font-size:x-small;
line-height:1.4;
display:inline-block;
margin-top:2.5em;
text-shadow:none;
}
a:link,a:visited{
text-decoration:none;
color:black;
}
table:hover a:link,
table:hover a:visited{
text-decoration:underline !important;
}
td{
margin:0;
padding:0;
font-size:small;
line-height:1.4;
text-align:left;
vertical-align:top;
}
.dots{
background:tan url(i/dot-tan.png) repeat-x 0 0.95em;
}
.dots *{
background:tan;
}
code{
font-size:small;
line-height:1.4;
font-style:normal !important;
}
hr{
color:black;
margin-top:4px;
border-top:6px solid;
}
.note{
border:5px double;
border-radius: 1.4em;
margin-top:0.7em;
padding: 0.3em 1em 0.5em 1em;
line-height:1.6;
}
#td1{width:2%}
#td2{width:17%}
#td3{width:30%}
#td4{width:1%}
#td5{width:2%}
#td6{width:18%}
#td7{width:29%}
#td8{width:1%}
@media print{
a:link,a:visited{
text-decoration:none;
}
h1,h2{
text-shadow:none;
}
}
</style>
<!--[if IE]>
<style>
i{
font-family:'LatinModernRomanSlanted10Regu',serif;
font-style:normal;
}
b{
font-family:'LatinModernRoman10Bold',serif;
font-weight:normal;
}
b i,i b{
font-family:'LatinModernRoman10BoldItalic',serif;
font-weight:normal;
font-style:normal;
}
code i{
font-family:'LatinModernMonoSlanted10Regul',monospace;
font-style:normal;
}
</style>
<![endif]-->
<link rel=prefetch href=index.html>
<table><!-- giveupandusetables.com -->
<tr>
<td colspan=8><h1>HTML5 po ruce a do kapsy</h1>
<tr>
<td colspan=8><hr>
<tr>
<td colspan=8><i>Zkratky (aby byl seznam čitelnější):</i>
<tr>
<td colspan=4><b>$new</b>=<code>document.createElement</code>
<td colspan=4><b>$bool</b>=<code>function(any){return!(any=="no"||!any)}</code>
<tr>
<td colspan=8><i>Většina nových funkcí může být detekována JavaScriptem. Pokud chcete otestovat podporu videa, vytvořte prvek <code><video></code> <br>a otestujte, zda v DOM má potřebné vlastnosti: <code>if("canPlayType" in $new("video")){...}</code> <br>Viz <a href=detect.html>kapitola 2: Detekujeme podporu HTML5</a></i>.
<tr>
<td colspan=3><h2>Nové elementy</h2>
<td>
<td colspan=4><h2><span>5 > 2</span> Formuláře</h2>
<tr>
<td colspan=3><i>Viz <a href=semantics.html>kapitola 3: What Does It All Mean?</a></i>
<td>
<td colspan=4><i>Zpětně kompatibilní s HTML 4. Viz <a href=forms.html>kapitola 9: A Form of Madness</a>.</i>
<tr>
<td colspan=3><b>Test podpory</b>
<td>
<td colspan=4><b>Test podpory</b>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#the-command><command></a></b>
<td><code>"type" in $new("command")</code>
<td>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#constraints>Ověřování</a></b>
<td colspan=2><code>"noValidate" in $new("form")</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-datalist-element><datalist></a></b>
<td><code>"options" in $new("datalist")</code>
<td>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#the-pattern-attribute>Kontrola regulárními výrazy</a></b>
<td colspan=2><code>"pattern" in $new("input")</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#the-details-element><details></a></b>
<td><code>"open" in $new("details")</code>
<td>
<td>
<td class=dots><b><a href=forms.html#placeholder>Textová nápověda (placeholder)</a></b>
<td colspan=2><code>"placeholder" in $new("input")</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-output-element><output></a></b>
<td><code>"value" in $new("output")</code>
<td>
<td>
<td class=dots><b><a href=forms.html#autofocus>Autofokus</a></b>
<td colspan=2><code>"autofocus" in $new("input")</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-progress-element><progress></a></b>
<td><code>"value" in $new("progress")</code>
<td>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#the-required-attribute>Required</a></b>
<td colspan=2><code>"required" in $new("input")</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-meter-element><meter></a></b>
<td><code>"value" in $new("meter")</code>
<td>
<td colspan=4><b><a href=forms.html>Nové typy vstupních polí</a></b> <i>Prohlížeče mohou si mohou přízpůsobit vzhled nebo způsoby vstupu.</i>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-time-element><time></a></b>
<td><code>"valueAsDate" in $new("time")</code>
<td>
<td>
<td class=dots><code>type="search"</code>
<td colspan=2>vyhledávání
<tr>
<td colspan=2 class=dots><b>Textové anotace</b>
<td><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-ruby-element><code><ruby></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-rt-element><code><rt></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-rp-element><code><rp></code></a>
<td>
<td>
<td class=dots><span><code>type="number"</code></span>
<td colspan=2>spinbox
<tr>
<td colspan=3><b>Sémantické prvky</b> <i>Použitelné ve všech prohlížečích. <a href=http://code.google.com/p/html5shiv/>IE < 9 potřebuje záplatu</a>.</i>
<td>
<td>
<td class=dots><span><code>type="range"</code></span>
<td colspan=2>šoupátko
<tr>
<td>
<td colspan=2><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-article-element><code><article></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-aside-element><code><aside></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-header-element><code><header></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-hgroup-element><code><hgroup></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-footer-element><code><footer></code></a>,
<td>
<td>
<td class=dots><span><code>type="color"</code></span>
<td colspan=2>výběr barev
<tr>
<td>
<td colspan=2><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-section-element><code><section></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/sections.html#the-nav-element><code><nav></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#the-figure-element><code><figure></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#the-figcaption-element><code><figcaption></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-mark-element><code><mark></code></a>,
<td>
<td>
<td class=dots><span><code>type="tel"</code></span>
<td colspan=2>telefonní číslo
<tr>
<td>
<td colspan=2><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#the-summary-element><code><summary></code></a>
<td>
<td>
<td class=dots><span><code>type="url"</code></span>
<td colspan=2>adresa webu
<tr>
<td colspan=2 class=dots><span><b>Nově dokumentované</b></span>
<td><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-embed-element><code><embed></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#the-keygen-element><code><keygen></code></a>, <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-wbr-element><code><wbr></code></a>
<td>
<td>
<td class=dots><span><code>type="email"</code></span>
<td colspan=2>e-mailová adresa
<tr>
<td colspan=3><b><a href=http://dev.w3.org/html5/html4-differences/#absent-elements>Zastaralé</a></b> <i>Stále podporované, ale nedoporučené.</i>
<td>
<td>
<td colspan=3><code>type="date"/"time"/"month"/"week"/"datetime"</code>
<tr>
<td>
<td colspan=3><code><basefont></code>, <code><big></code>, <code><center></code>, <code><font></code>, <code><s></code>, <code><strike></code>,
<td colspan=4><b><a href=detect.html#input-types>Test nových typů vstupních polí</a></b> <i>Všechny testy fungují podle stejného vzoru.</i>
<tr>
<td>
<td colspan=3><code><frame></code>, <code><frameset></code>, <code><noframes></code>, <code><applet></code>, <code><dir></code>,
<td>
<td colspan=3><code>function() {</code>
<tr>
<td>
<td colspan=3><code><isindex></code>, <code><tt></code>, <code><u></code>, <code><acronym></code> (use <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-abbr-element><code><abbr></code></a>)
<td>
<td colspan=3><code> var i = $new("input");</code>
<tr>
<td rowspan=5 colspan=3><p class=note>Vždy dávejte atributy do uvozovek, pokud ovšem nejste celebrita. Klidně si pište do nepárových značek lomítka, pokud chcete. Z nezapomeňte, že validování rozhodně nevyšlo z módy: <b><a href=http://html5.validator.nu/>html5.validator.nu</a></b>
<td rowspan=5 colspan=1>
<td>
<td colspan=3><code> i.setAttribute("type", "<b>search</b>");</code>
<tr>
<td>
<td colspan=3><code> return i.type !== "text";</code>
<tr>
<td>
<td colspan=3><code>}</code>
<tr>
<td colspan=4>Některé prohlížeče „podporují“ vstupní typy, ale nenabízejí uživatelské rozhraní.</i>
<tr>
<td colspan=4><i><a href=http://www.modernizr.com/><b>Modernizr.js</b></a> je dokáže detekovat.</i>
<tr>
<td colspan=8><h2><span>Hele, mami, bez pluginů...</span> Multimedia</h2>
<tr>
<td colspan=8><i>Video můžete zakódovat pomocí <a href=http://firefogg.org/>Firefogg</a> (Theora), <a href=http://handbrake.fr/>HandBrake</a> (H.264) nebo <a href=http://www.mirovideoconverter.com/>Miro Video Encoder</a> (víc najednou). Viz <a href=video.html>kapitola 5: Video on the Web</a>.</i>
<tr>
<td colspan=2 class=dots><span><b>Podpora pro <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#audio><audio></a></b></span>
<td colspan=6><code>"canPlayType" in $new("audio")</code>
<tr>
<td>
<td class=dots><span><b><a href=http://en.wikipedia.org/wiki/Vorbis>Vorbis</a></b></span>
<td colspan=6><code>$bool($new("audio").canPlayType('audio/ogg; codecs="vorbis"'))</code>
<tr>
<td>
<td class=dots><span><b><a href=http://en.wikipedia.org/wiki/MP3>MP3</a></b></span>
<td colspan=6><code>$bool($new("audio").canPlayType('audio/mpeg;'))</code>
<tr>
<td>
<td class=dots><span><b><a href=http://en.wikipedia.org/wiki/Advanced_Audio_Coding>AAC</a></b></span>
<td colspan=6><code>$bool($new("audio").canPlayType('audio/mp4; codecs="mp4a.40.2"'))</code>
<tr>
<td colspan=2 class=dots><span><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#video><video></a> support</b></span>
<td colspan=6><code>"canPlayType" in $new("video")</code>
<tr>
<td>
<td class=dots><span><b><a href=http://en.wikipedia.org/wiki/WebM>WebM</a></b></span>
<td colspan=6><code>$bool($new("video").canPlayType('video/webm; codecs="vp8, vorbis"'))</code>
<tr>
<td>
<td class=dots><span><b><a href=http://en.wikipedia.org/wiki/Theora>Theora</a></b></span>
<td colspan=6><code>$bool($new("video").canPlayType('video/ogg; codecs="theora"'))</code>
<tr>
<td>
<td class=dots><span><b><a href=http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC>H.264</a></b></span>
<td colspan=6><code>$bool($new("video").canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"'))</code>
<tr>
<td colspan=2 class=dots><span><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#htmlmediaelement>Vlastnosti</a></b></span>
<td colspan=6><i>Lze použít pro prvek <code><audio></code> i <code><video></code>.</i>
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-src>src</a></code></span>
<td>řetězec
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-currentsrc>currentSrc</a></code></span>
<td colspan=2>řetězec, pouze ke čtení
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-preload>preload</a></code></span>
<td>řetězec
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-tracks>tracks</a></code></span>
<td colspan=2>pole objektů <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#timedtrack>TimedTrack</a>
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-currenttime>currentTime</a></code></span>
<td>v sekundách
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-buffered>buffered</a></code></span>
<td colspan=2><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#timeranges>TimeRanges</a> objekt, pouze ke čtení
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-initialtime>initialTime</a></code></span>
<td>v sekundách, pouze ke čtení
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-played>played</a></code></span>
<td colspan=2>objekt TimeRanges, pouze ke čtení
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-duration>duration</a></code></span>
<td>v sekundách, pouze ke čtení
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-seekable>seekable</a></code></span>
<td colspan=2>objekt TimeRanges, pouze ke čtení
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-startoffsettime>startOffsetTime</a></code></span>
<td>datetime, pouze ke čtení
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-networkstate>networkState</a></code></span>
<td colspan=2>výčtová hodnota, pouze ke čtení
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-paused>paused</a></code></span>
<td>boolean
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-readystate>readyState</a></code></span>
<td colspan=2>výčtová hodnota, pouze ke čtení
<tr>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-ended>ended</a></code></span>
<td>boolean, pouze ke čtení
<td>
<td>
<td class=dots><span><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-error>error.code</a></code></span>
<td colspan=2>výčtová hodnota, pouze ke čtení
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-autoplay>autoplay</a></code>
<td>boolean
<td>
<td rowspan=6 colspan=4><p class=note>V jednom prvku <code><audio></code> i <code><video></code> můžete použít více prvků <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#the-source-element><code><source></code></a>. Prohlížeče podporující HTML5 nebudou vykreslovat dceřinné prvky značek <code><video></code>, můžete do nich vložit <a href=video.html#ie>náhradí obsah (fallback) ve Flashi</a>. Audio a video musí být nabízeny se správným MIME typep, nezapomeňte zkontrolovat vaše hlavičky <code>Content-Type</code>!
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-loop>loop</a></code>
<td>boolean
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-controls>controls</a></code>
<td>boolean
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-volume>volume</a></code>
<td>mezi 0.0 a 1.0, default = 1.0
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-muted>muted</a></code>
<td>boolean
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#dom-media-playbackrate>playbackRate</a></code>
<td>default = 1.0
<td>
<tr>
<td colspan=3><h2>Offline</h2>
<td>
<td colspan=4><h2><span><a href=http://isgeolocationpartofhtml5.com/>IsGeolocationPartOfHTML5.com</a></span> Geolokace</h2>
<tr>
<td colspan=3><i>See <a href=offline.html>Chapter 8: Let’s Take This Offline</a>.</i>
<td>
<td colspan=4><i>Location sharing is always opt-in. See <a href=geolocation.html>Chapter 6: You Are Here</a>.</i>
<tr>
<td colspan=2 class=dots><span><b><a href=detect.html#offline>Test for support</a></b></span>
<td><code>window.applicationCache</code>
<td>
<td colspan=2 class=dots><span><b><a href=detect.html#geolocation>Test for support</a></b></span>
<td colspan=2><code>navigator.geolocation</code>
<tr>
<td colspan=2 class=dots><span><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-html-manifest><html manifest></a></b></span>
<td><i>Links to cache manifest.</i>
<td>
<td colspan=4><b><a href=http://www.w3.org/TR/geolocation-API/#geolocation_interface>Functions</a></b>
<tr>
<td colspan=3><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html#manifests>Cache manifest sections</a></b>
<td>
<td>
<td colspan=3><code>Position getCurrentPosition(callback, <i title="optional">err, opt</i>);</code>
<tr>
<td>
<td class=dots><b>CACHE:</b>
<td>Always cached. No wildcards.
<td>
<td>
<td colspan=3><code>long watchPosition(callback, <i title="optional">err, opt</i>);</code>
<tr>
<td>
<td class=dots><b>NETWORK:</b>
<td>Never cached. "*" wildcards.
<td>
<td>
<td colspan=3><code>void clearWatch(watchId);</code>
<tr>
<td>
<td class=dots><b>FALLBACK:</b>
<td>Pairs; second is used offline.
<td>
<td>
<td colspan=3><code>void callback(position);</code> <i>Called on success</i>
<tr>
<td colspan=2 class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html#appcacheevents>Events</a></b>
<td><i>First four are most common.</i>
<td>
<td>
<td colspan=3><code>void err(positionError);</code> <i>Called on error</i>
<tr>
<td>
<td class=dots><code>checking</code>
<td>always first
<td>
<td colspan=4><b><a href=http://www.w3.org/TR/geolocation-API/#position-options>PositionOptions object</a></b>
<tr>
<td>
<td class=dots><code>downloading</code>
<td>found manifest, fetching stuff
<td>
<td>
<td class=dots><code>timeout</code>
<td colspan=2>in milliseconds
<tr>
<td>
<td class=dots><code>progress</code>
<td>still fetching stuff
<td>
<td>
<td class=dots><code>maximumAge</code>
<td colspan=2>also milliseconds
<tr>
<td>
<td class=dots><code>cached</code>
<td>all resources cached
<td>
<td>
<td class=dots><code>enableHighAccuracy</code>
<td colspan=2>true or false
<tr>
<td>
<td class=dots><code>noupdate</code>
<td>manifest hasn't changed
<td>
<td colspan=4><i><a href=http://www.w3.org/TR/geolocation-API/#position>Position object</a> (in callback) has <code>timestamp</code> and <code>coords</code>.</i>
<tr>
<td>
<td class=dots><code>updateready</code>
<td>call <code>swapCache()</code> to activate
<td>
<td colspan=4><b><a href=http://www.w3.org/TR/geolocation-API/#coordinates_interface>Coordinates object</a></b> <i>Unsupported properties will be <code>null</code>.</i>
<tr>
<td>
<td class=dots><code>obsolete</code>
<td>manifest is 404 (or 410)
<td>
<td>
<td class=dots><code>latitude</code>
<td colspan=2>in decimal degrees
<tr>
<td>
<td class=dots><code>error</code>
<td>it all went wrong somewhere
<td>
<td>
<td class=dots><code>longitude</code>
<td colspan=2>also decimal degrees
<tr>
<td rowspan=8 colspan=3><p class=note>HTTP semantics still apply to resources listed in the cache manifest, so check your <code>Expires</code> and <code>Cache-Control</code> headers. Manifest must be served as <code>text/cache-manifest</code>, so check your <code>Content-Type</code> headers too. If <i>any</i> required resource fails to load, application will not work offline.
<td rowspan=8 colspan=1>
<td>
<td class=dots><code>altitude</code>
<td colspan=2>meters above the <a href=http://en.wikipedia.org/wiki/Reference_ellipsoid>reference ellipsoid</a>
<tr>
<td>
<td class=dots><code>accuracy</code>
<td colspan=2>in meters
<tr>
<td>
<td class=dots><code>altitudeAccuracy</code>
<td colspan=2>also in meters
<tr>
<td>
<td class=dots><code>heading</code>
<td colspan=2>degrees CCW from true north
<tr>
<td>
<td class=dots><code>speed</code>
<td colspan=2>in meters/second
<tr>
<td colspan=4><i><a href=http://www.w3.org/TR/geolocation-API/#position-error>PositionError object</a> (in err callback) has <code>message</code> and <code>code</code>:</i>
<tr>
<td>
<td colspan=3>TIMEOUT, POSITION_UNAVAILABLE,
<tr>
<td>
<td colspan=3>PERMISSION_DENIED, or UNKNOWN_ERROR
<tr>
<td colspan=8><h2><span>Math is hard. Let’s go shopping!</span> Canvas</h2>
<tr>
<td colspan=8><i>Paths are like tracing in pencil; nothing is drawn until <code>fill()</code> or <code>stroke()</code>! See <a href=canvas.html>Chapter 4: Let’s Call It A Draw(ing) Surface</a>.</i>
<tr>
<td colspan=2 class=dots><b><a href=detect.html#canvas>Basic support</a></b>
<td colspan=6><code>"getContext" in $new("canvas")</code>
<tr>
<td colspan=2 class=dots><b><a href=detect.html#canvas-text>Text support</a></b>
<td colspan=6><code>typeof $new("canvas").fillText=="function"</code>
<tr>
<td colspan=2 class=dots><b>Functions</b>
<td colspan=6><i>Root path is implicit; subpaths must be explicit. <code>drawImage()</code> can also draw video or canvas.</i>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-beginpath>beginPath();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-drawimage>drawImage(image,dx,dy,<i title="optional">dw,dh</i>);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-quadraticcurveto>quadraticCurveTo(cpx,cpy,x,y);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-closepath>closePath();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-rotate>rotate(angle);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-beziercurveto>bezierCurveTo(cp1x,cp1y,cp2x,cp2y,x,y);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-moveto>moveTo(x,y);</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-translate>translate(x,y);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-arc>arc(x,y,radius,startAngle,endAngle,anticlockwise);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-lineto>lineTo(x,y);</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-arcto>arcTo(x1,y1,x2,y2,radius);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-getimagedata>getImageData(sx,sy,sw,sh);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-rect>rect(x,y,w,h);</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-ispointinpath>isPointInPath(x,y);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-putimagedata>putImageData(imagedata,dx,dy,x,y,w,h);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-fill>fill();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-fillrect>fillRect(x,y,w,h);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-filltext>fillText(text,x,y,<i title="optional">maxWidth</i>);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-stroke>stroke();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-strokerect>strokeRect(x,y,w,h);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-stroketext>strokeText(text,x,y,<i title="optional">maxWidth</i>);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-clip>clip();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-clearrect>clearRect(x,y,w,h);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-measuretext>measureText(text);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-save>save();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-settransform>setTransform(a,b,c,d,e,f);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-createlineargradient>createLinearGradient(x0,y0,x1,y1);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-restore>restore();</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-transform>transform(a,b,c,d,e,f);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-createradialgradient>createRadialGradient(x0,y0,r0,x1,y1,r1);</a></code>
<tr>
<td>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-scale>scale(x,y);</a></code>
<td><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-createimagedata>createImageData(sw,sh);</a></code>
<td>
<td colspan=4><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-createpattern>createPattern(image,repetition);</a></code>
<tr>
<td colspan=2 class=dots><b>Properties</b>
<td colspan=6><i>All properties are read/write. <code>fillStyle</code> and <code>strokeStyle</code> can also be a gradient or pattern.</i>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-fillstyle>fillStyle</a></code>
<td>CSS color, default = "black"
<td>
<td colspan=2 class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-shadowcolor>shadowColor</a></code>
<td colspan=2>CSS color, default = "black"
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-strokestyle>strokeStyle</a></code>
<td>CSS color, default = "black"
<td>
<td colspan=2 class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-shadowoffsetx>shadowOffsetX</a></code>
<td colspan=2>in pixels, default = 0
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-font>font</a></code>
<td>CSS font, default = "10px sans-serif"
<td>
<td colspan=2 class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-shadowoffsety>shadowOffsetY</a></code>
<td colspan=2>in pixels, default = 0
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-textalign>textAlign</a></code>
<td>enumerated, default = "start"
<td>
<td colspan=2 class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-shadowblur>shadowBlur</a></code>
<td colspan=2>in pixels, default = 0
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-textbaseline>textBaseline</a></code>
<td>enumerated, default = "alphabetic"
<td>
<td rowspan=6 colspan=4><p class=note>Learn about states! A <a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#the-canvas-state>canvas state</a> includes the clipping path, all properties, and all transformations. <code>save()</code> pushes a state onto the stack and <code>restore()</code> pops it off.
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-globalalpha>globalAlpha</a></code>
<td>0.0 (transparent) to 1.0 (opaque)
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-linewidth>lineWidth</a></code>
<td>in pixels, default = 1
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-linecap>lineCap</a></code>
<td>enumerated, default = "butt"
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-linejoin>lineJoin</a></code>
<td>enumerated, default = "miter"
<td>
<tr>
<td>
<td class=dots><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-miterlimit>miterLimit</a></code>
<td>float, default = 10
<td>
<tr>
<td colspan=8><h2>Bits & Bytes</h2>
<tr>
<td colspan=2 class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/syntax.html#the-doctype>Doctype</a></b>
<td colspan=6><code><!DOCTYPE html></code> <i>Triggers <a href=semantics.html#the-doctype>standards-based rendering</a> in all browsers. It’s 2011; stop relying on “quirks mode”!</i>
<tr>
<td colspan=2 class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-meta-charset>Text encoding</a></b>
<td colspan=6><code><meta charset="utf-8"></code> <i><a href=http://openmya.hacker.jp/hasegawa/security/utf7cs.html>Always declare a charset</a>, even if you’re a rockstar. UTF-8 is always a safe choice.</i>
<tr>
<td colspan=2 class=dots><b><a href=http://wiki.whatwg.org/wiki/HTML_vs._XHTML>Optional end tags</a></b>
<td colspan=6><code><html></code>, <code><head></code>, <code><body></code>, <code><li></code>, <code><p></code>, <code><dt></code>, <code><dd></code>, <code><colgroup></code>, <code><option></code>, <code><optgroup></code>, <code><rt></code>, <code><rp></code>,
<tr>
<td colspan=2>
<td colspan=6><code><thead></code>, <code><tbody></code>, <code><tfoot></code>, <code><tr></code>, <code><td></code>. <i>Exception: always close <code><p></code> before <code><table></code> to avoid IE weirdness.</i>
<tr>
<td colspan=2 class=dots><b><a href=http://wiki.whatwg.org/wiki/HTML_vs._XHTML>Optional start tags</a></b>
<td colspan=6><code><html></code>, <code><head></code>, <code><body></code>, <code><tbody></code>, <code><colgroup></code>. <i>Amaze your friends! Skip the <code><html></code> tags and still validate!</i>
<tr>
<td colspan=2 class=dots><b><a href=http://dev.w3.org/html5/html4-differences/#new-attributes>New attributes</a></b>
<td colspan=6><code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-media><a media></a></code>, <code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#ping><a ping></a></code>, <code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-base-target><base target></a></code>, <code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-style-scoped><style scoped></a></code>, <code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-async><script async></a></code>, <code><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-reversed><ol reversed></a></code>
<tr>
<td colspan=2><b>Miscellaneous tests</b>
<td colspan=6><i>See <a href=everything.html>The All-In-One Almost-Alphabetical No-Bullshit Guide to Detecting Everything</a>.</i>
<tr>
<td>
<td class=dots><b><a href=http://dev.w3.org/2006/webapi/WebSimpleDB/>IndexedDB</a></b>
<td><code>window.indexedDB</code>
<td>
<td colspan=2 class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#contenteditable>contentEditable</a></b>
<td colspan=2><code>"isContentEditable" in $new("a")</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-workers/current-work/>Web Workers</a></b>
<td><code>window.Worker</code>
<td>
<td colspan=2 class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dnd>Drag-and-drop</a></b>
<td colspan=2><code>"draggable" in $new("span")</code>
<tr>
<td>
<td class=dots><b><a href=http://dev.w3.org/html5/websockets/>Web Sockets</a></b>
<td><code>window.WebSocket</code>
<td>
<td colspan=2 class=dots><b><a href=http://dev.w3.org/2006/webapi/FileAPI/>File API</a></b>
<td colspan=2><code>typeof FileReader!=="undefined"</code>
<tr>
<td>
<td class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#web-messaging>X-doc messaging</a></b>
<td><code>window.postMessage</code>
<td>
<td colspan=2 class=dots><b><a href=http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#undo>Undo history</a></b>
<td colspan=2><code>typeof UndoManager!=="undefined"</code>
<tr>
<td>
<td class=dots><b><a href=http://dev.w3.org/html5/webdatabase/>Web SQL</a></b>