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1 <!doctype html>
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2 <html lang="en">
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3 <head>
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4 <meta charset="utf-8">
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5 <title>jQuery UI Effects - Easing demo</title>
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6 <link rel="stylesheet" href="../../themes/base/jquery.ui.all.css">
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7 <script src="../../jquery-1.10.2.js"></script>
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8 <script src="../../ui/jquery.ui.effect.js"></script>
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9 <link rel="stylesheet" href="../demos.css">
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10 <style>
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11 .graph {
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12 float: left;
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13 margin-left: 10px;
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14 }
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15 </style>
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16 <script>
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17 $(function() {
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18 if ( !$( "<canvas>" )[0].getContext ) {
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19 $( "<div>" ).text(
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20 "Your browser doesn't support canvas, which is required for this demo."
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21 ).appendTo( "#graphs" );
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22 return;
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23 }
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24
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25 var i = 0,
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26 width = 100,
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27 height = 100;
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28
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29 $.each( $.easing, function( name, impl ) {
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30 var graph = $( "<div>" ).addClass( "graph" ).appendTo( "#graphs" ),
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31 text = $( "<div>" ).text( ++i + ". " + name ).appendTo( graph ),
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32 wrap = $( "<div>" ).appendTo( graph ).css( 'overflow', 'hidden' ),
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33 canvas = $( "<canvas>" ).appendTo( wrap )[ 0 ];
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34
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35 canvas.width = width;
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36 canvas.height = height;
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37 var drawHeight = height * 0.8,
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38 cradius = 10;
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39 ctx = canvas.getContext( "2d" );
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40 ctx.fillStyle = "black";
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41
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42 // draw background
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43 ctx.beginPath();
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44 ctx.moveTo( cradius, 0 );
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45 ctx.quadraticCurveTo( 0, 0, 0, cradius );
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46 ctx.lineTo( 0, height - cradius );
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47 ctx.quadraticCurveTo( 0, height, cradius, height );
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48 ctx.lineTo( width - cradius, height );
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49 ctx.quadraticCurveTo( width, height, width, height - cradius );
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50 ctx.lineTo( width, 0 );
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51 ctx.lineTo( cradius, 0 );
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52 ctx.fill();
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53
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54 // draw bottom line
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55 ctx.strokeStyle = "#555";
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56 ctx.beginPath();
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57 ctx.moveTo( width * 0.1, drawHeight + .5 );
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58 ctx.lineTo( width * 0.9, drawHeight + .5 );
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59 ctx.stroke();
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60
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61 // draw top line
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62 ctx.strokeStyle = "#555";
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63 ctx.beginPath();
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64 ctx.moveTo( width * 0.1, drawHeight * .3 - .5 );
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65 ctx.lineTo( width * 0.9, drawHeight * .3 - .5 );
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66 ctx.stroke();
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67
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68 // plot easing
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69 ctx.strokeStyle = "white";
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70 ctx.beginPath();
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71 ctx.lineWidth = 2;
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72 ctx.moveTo( width * 0.1, drawHeight );
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73 $.each( new Array( width ), function( position ) {
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74 var state = position / width,
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75 val = impl( state, position, 0, 1, width );
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76 ctx.lineTo( position * 0.8 + width * 0.1,
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77 drawHeight - drawHeight * val * 0.7 );
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78 });
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79 ctx.stroke();
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80
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81 // animate on click
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82 graph.click(function() {
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83 wrap
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84 .animate( { height: "hide" }, 2000, name )
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85 .delay( 800 )
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86 .animate( { height: "show" }, 2000, name );
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87 });
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88
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89 graph.width( width ).height( height + text.height() + 10 );
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90 });
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91 });
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92 </script>
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93 </head>
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94 <body>
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95
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96 <div id="graphs"></div>
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97
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98 <div class="demo-description">
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99 <p><strong>All easings provided by jQuery UI are drawn above, using a HTML canvas element</strong>. Click a diagram to see the easing in action.</p>
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100 </div>
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101 </body>
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102 </html>
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