--- /dev/null
+<!DOCTYPE html>
+<html lang="en">
+<head>
+ <meta charset="utf-8">
+ <title>jQuery UI Widget - Default functionality</title>
+ <link rel="stylesheet" href="../../themes/base/jquery.ui.all.css">
+ <script src="../../jquery-1.6.2.js"></script>
+ <script src="../../ui/jquery.ui.core.js"></script>
+ <script src="../../ui/jquery.ui.position.js"></script>
+ <script src="../../ui/jquery.ui.widget.js"></script>
+ <script src="../../ui/jquery.ui.button.js"></script>
+ <link rel="stylesheet" href="../demos.css">
+ <style>
+ .custom-colorize {
+ font-size: 20px;
+ position: relative;
+ width: 75px;
+ height: 75px;
+ }
+ .custom-colorize-changer {
+ font-size: 10px;
+ position: absolute;
+ right: 0;
+ bottom: 0;
+ }
+ </style>
+ <script>
+ $(function() {
+ // the widget definition, where "custom" is the namespace,
+ // "colorize" the widget name
+ $.widget( "custom.colorize", {
+ // default options
+ options: {
+ red: 255,
+ green: 0,
+ blue: 0,
+
+ // callbacks
+ change: null,
+ random: null
+ },
+
+ // the constructor
+ _create: function() {
+ this.element
+ // add a class for theming
+ .addClass( "custom-colorize" )
+ // prevent double click to select text
+ .disableSelection();
+
+ this.changer = $( "<button>", {
+ text: "change",
+ "class": "custom-colorize-changer"
+ })
+ .appendTo( this.element )
+ .button();
+
+ // bind click events on the changer button to the random method
+ // in 1.9 would use this._bind( this.changer, { click: "random" });
+ var that = this;
+ this.changer.bind("click.colorize", function() {
+ // _bind would handle this check
+ if (that.options.disabled) {
+ return;
+ }
+ that.random.apply(that, arguments);
+ });
+ this._refresh();
+ },
+
+ // called when created, and later when changing options
+ _refresh: function() {
+ this.element.css( "background-color", "rgb(" +
+ this.options.red +"," +
+ this.options.green + "," +
+ this.options.blue + ")"
+ );
+
+ // trigger a callback/event
+ this._trigger( "change" );
+ },
+
+ // a public method to change the color to a random value
+ // can be called directly via .colorize( "random" )
+ random: function( event ) {
+ var colors = {
+ red: Math.floor( Math.random() * 256 ),
+ green: Math.floor( Math.random() * 256 ),
+ blue: Math.floor( Math.random() * 256 )
+ };
+
+ // trigger an event, check if it's canceled
+ if ( this._trigger( "random", event, colors ) !== false ) {
+ this.option( colors );
+ }
+ },
+
+ // events bound via _bind are removed automatically
+ // revert other modifications here
+ _destroy: function() {
+ // remove generated elements
+ this.changer.remove();
+
+ this.element
+ .removeClass( "custom-colorize" )
+ .enableSelection()
+ .css( "background-color", "transparent" );
+ },
+
+ // _setOptions is called with a hash of all options that are changing
+ // always refresh when changing options
+ _setOptions: function() {
+ // in 1.9 would use _superApply
+ $.Widget.prototype._setOptions.apply( this, arguments );
+ this._refresh();
+ },
+
+ // _setOption is called for each individual option that is changing
+ _setOption: function( key, value ) {
+ // prevent invalid color values
+ if ( /red|green|blue/.test(key) && (value < 0 || value > 255) ) {
+ return;
+ }
+ // in 1.9 would use _super
+ $.Widget.prototype._setOption.call( this, key, value );
+ }
+ });
+
+ // initialize with default options
+ $( "#my-widget1" ).colorize();
+
+ // initialize with two customized options
+ $( "#my-widget2" ).colorize({
+ red: 60,
+ blue: 60
+ });
+
+ // initialize with custom green value
+ // and a random callback to allow only colors with enough green
+ $( "#my-widget3" ).colorize( {
+ green: 128,
+ random: function( event, ui ) {
+ return ui.green > 128;
+ }
+ });
+
+ // click to toggle enabled/disabled
+ $( "#disable" ).toggle(function() {
+ // use the custom selector created for each widget to find all instances
+ $( ":custom-colorize" ).colorize( "disable" );
+ }, function() {
+ $( ":custom-colorize" ).colorize( "enable" );
+ });
+
+ // click to set options after initalization
+ $( "#black" ).click( function() {
+ $( ":custom-colorize" ).colorize( "option", {
+ red: 0,
+ green: 0,
+ blue: 0
+ });
+ });
+ });
+ </script>
+</head>
+<body>
+
+<div class="demo">
+
+<div>
+ <div id="my-widget1">color me</div>
+ <div id="my-widget2">color me</div>
+ <div id="my-widget3">color me</div>
+ <button id="disable">Toglge disabled option</button>
+ <button id="black">Go black</button>
+</div>
+
+</div><!-- End demo -->
+
+
+
+<div class="demo-description">
+<p>This demo shows a simple custom widget built using the widget factory (jquery.ui.widget.js).</p>
+<p>The three boxes are initialized in different ways. Clicking them changes their background color. View source to see how it works, its heavily commented</p>
+<p><a href="http://wiki.jqueryui.com/w/page/12138135/Widget-factory">For more details on the widget factory, visit the jQuery UI planning wiki.</a></p>
+</div><!-- End demo-description -->
+
+</body>
+</html>
projects / jquery-ui.git / commitdiff