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101 lines
2.8 KiB
101 lines
2.8 KiB
5 years ago
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>jQuery UI Effects - Easing demo</title>
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<link rel="stylesheet" href="../../themes/base/all.css">
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<link rel="stylesheet" href="../demos.css">
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<style>
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.graph {
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float: left;
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margin-left: 10px;
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}
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</style>
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<script src="../../external/requirejs/require.js"></script>
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<script src="../bootstrap.js">
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if ( !$( "<canvas>" )[0].getContext ) {
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$( "<div>" ).text(
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"Your browser doesn't support canvas, which is required for this demo."
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).appendTo( "#graphs" );
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return;
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}
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var i = 0,
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width = 100,
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height = 100;
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$.each( $.easing, function( name, impl ) {
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var graph = $( "<div>" ).addClass( "graph" ).appendTo( "#graphs" ),
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text = $( "<div>" ).text( ++i + ". " + name ).appendTo( graph ),
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wrap = $( "<div>" ).appendTo( graph ).css( 'overflow', 'hidden' ),
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canvas = $( "<canvas>" ).appendTo( wrap )[ 0 ];
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canvas.width = width;
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canvas.height = height;
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var drawHeight = height * 0.8,
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cradius = 10;
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ctx = canvas.getContext( "2d" );
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ctx.fillStyle = "black";
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// Draw background
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ctx.beginPath();
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ctx.moveTo( cradius, 0 );
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ctx.quadraticCurveTo( 0, 0, 0, cradius );
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ctx.lineTo( 0, height - cradius );
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ctx.quadraticCurveTo( 0, height, cradius, height );
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ctx.lineTo( width - cradius, height );
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ctx.quadraticCurveTo( width, height, width, height - cradius );
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ctx.lineTo( width, 0 );
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ctx.lineTo( cradius, 0 );
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ctx.fill();
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// Draw bottom line
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ctx.strokeStyle = "#555";
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ctx.beginPath();
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ctx.moveTo( width * 0.1, drawHeight + .5 );
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ctx.lineTo( width * 0.9, drawHeight + .5 );
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ctx.stroke();
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// Draw top line
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ctx.strokeStyle = "#555";
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ctx.beginPath();
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ctx.moveTo( width * 0.1, drawHeight * .3 - .5 );
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ctx.lineTo( width * 0.9, drawHeight * .3 - .5 );
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ctx.stroke();
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// Plot easing
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ctx.strokeStyle = "white";
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ctx.beginPath();
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ctx.lineWidth = 2;
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ctx.moveTo( width * 0.1, drawHeight );
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$.each( new Array( width ), function( position ) {
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var state = position / width,
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val = impl( state, position, 0, 1, width );
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ctx.lineTo( position * 0.8 + width * 0.1,
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drawHeight - drawHeight * val * 0.7 );
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});
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ctx.stroke();
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// Animate on click
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graph.on( "click", function() {
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wrap
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.animate( { height: "hide" }, 2000, name )
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.delay( 800 )
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.animate( { height: "show" }, 2000, name );
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});
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graph.width( width ).height( height + text.height() + 10 );
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});
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</script>
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</head>
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<body>
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<div id="graphs"></div>
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<div class="demo-description">
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<p><strong>All easings provided by jQuery UI are drawn above, using an HTML canvas element</strong>. Click a diagram to see the easing in action.</p>
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</div>
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</body>
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</html>
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