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Widget demo: Replace inline editor with colorize. This can stick around forever, won't be making it a real widget.
This commit is contained in:
Jörn Zaefferer
parent
727a80a4d9
commit
92e37865a0
@ -10,95 +10,108 @@
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<script src="../../ui/jquery.ui.position.js"></script>
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<link rel="stylesheet" href="../demos.css">
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<style>
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/* this could go into custom.inlineedit.css */
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/* make it display:block to replace the block element that's being edited */
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.inlineedit-input { display: block; }
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/* this would need a few more styles to make it look decent */
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.colorize {
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font-size: 25px;
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width: 75px;
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height: 75px;
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}
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</style>
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<script>
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$(function() {
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// this defines a new widget, in the "custom" namespace
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$.widget( "custom.inlineedit", {
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// the widget definition, where 'custom' is the namespace,
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// 'colorize' the widget name
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$.widget( 'custom.colorize', {
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// default options
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options: {
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submitOnBlur: true
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red: 255,
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green: 0,
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blue: 0
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},
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// this is the constructor
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// the constructor
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_create: function() {
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// basic event binding to this.element
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this.element
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// add a class for themeing
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.addClass("colorize")
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// prevent double click to select text
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.disableSelection();
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// bind click events to random method
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this._bind({
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// string as value is mapped to instance method
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click: "start"
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// _bind won't call random when widget is disabled
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click: "random"
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});
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this._refresh();
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},
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// called when created, and later when changing options
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_refresh: function() {
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this.element.css( 'background-color', 'rgb(' +
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this.options.red +',' +
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this.options.green + ',' +
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this.options.blue + ')'
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);
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// trigger a callback/event
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this._trigger( 'change' );
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},
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// a public method to change the color to a random value
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// can be called directly via .colorize( 'random' )
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random: function( event ) {
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var colors = {
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red: Math.floor( Math.random() * 256 ),
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green: Math.floor( Math.random() * 256 ),
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blue: Math.floor( Math.random() * 256 )
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};
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// trigger an event, check if it's canceled
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if ( this._trigger( 'random', event, colors ) !== false ) {
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$.extend( this.options, colors );
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this._refresh();
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}
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},
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// events bound via _bind are removed automatically
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// revert other modifications here
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_destroy: function() {
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this.element
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.removeClass( 'colorize' )
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.enableSelection()
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.css( 'background-color', 'transparent' );
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},
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// always refresh when changing an option
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_setOption: function( key, value ) {
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// _super handles keeping the right this-context
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this._super( "_setOption", key, value );
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this._refresh();
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}
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});
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// creating a new element to show later
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this.input = $( "<input>" ).addClass("inlineedit-input").hide().insertAfter( this.element );
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// with events on input, here functions that to do event-specific checks
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this._bind( this.input, {
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blur: function( event ) {
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// ignore blur event if already hidden
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if (!this.input.is(":visible")) {
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return;
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}
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if ( this.options.submitOnBlur ) {
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this.submit( event )
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} else {
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this.cancel( event );
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}
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},
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keyup: function( event ) {
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// using $.ui.keyCode to map keyboard input to the right action
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if ( event.keyCode === $.ui.keyCode.ENTER || event.keyCode === $.ui.keyCode.NUMPAD_ENTER ) {
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this.submit( event );
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} else if ( event.keyCode === $.ui.keyCode.ESCAPE ) {
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this.cancel( event );
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}
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$( '#my-widget1' ).colorize();
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$( '#my-widget2' ).colorize({
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red: 60,
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blue: 60
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});
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$( '#my-widget3' ).colorize( {
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green: 128,
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random: function( event, ui ) {
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return ui.green > 128;
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}
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});
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},
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// a public method
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start: function( event ) {
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this.element.hide();
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this.input.val( this.element.text() ).show().focus();
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// trigger a custom event when something changes
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this._trigger("start", event );
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},
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// another custom method
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_hide: function( event ) {
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this.input.hide();
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this.element.show();
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},
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submit: function( event ) {
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var newValue = this.input.val(),
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ui = {
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value: newValue
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};
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// trigger an event, cancel the default action when event handler returns false
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if ( this._trigger( "submit", event, ui ) !== false ) {
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this.element.text( newValue );
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}
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this._hide();
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},
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cancel: function( event ) {
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this._hide();
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// trigger an event when something changes
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this._trigger( "cancel", event );
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}
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$( '#disable' ).toggle(function() {
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$( ':custom-colorize' ).colorize( 'disable' );
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}, function() {
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$( ':custom-colorize' ).colorize( 'enable' );
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});
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// this is how we can use our custom widget, just like any jQuery plugin
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$( ".demo h1" ).inlineedit();
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$( ".demo p" ).inlineedit({
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// configure an option
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submitOnBlur: false
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});
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$( ".demo button" ).click( function() {
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// call a public method
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$( ".demo :custom-inlineedit" ).inlineedit( "start" );
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});
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// widget's create a custom selector
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// triggered events can be used with regular bind, just prepend name
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$( ".demo :custom-inlineedit" ).bind( "inlineeditstart inlineeditsubmit inlineeditcancel" , function( event, ui ) {
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$( "<div></div>" ).text( "edit event " + event.type ).appendTo(".demo");
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$( '#black' ).click( function() {
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$( ':custom-colorize' ).colorize( 'option', {
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red: 0,
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green: 0,
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blue: 0
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} );
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});
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});
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</script>
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@ -108,9 +121,11 @@
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<div class="demo">
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<div>
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<h1>This is an editable header</h1>
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<p>And an editable paragraph</p>
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<button>Start editing</button>
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<div id="my-widget1">color me</div>
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<div id="my-widget2">color me</div>
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<div id="my-widget3">color me</div>
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<button id="disable">Toglge disabled option</button>
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<button id="black">Go black</button>
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</div>
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</div><!-- End demo -->
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@ -119,7 +134,7 @@
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<div class="demo-description">
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<p>This demo shows a simple custom widget built using the widget factory (jquery.ui.widget.js).</p>
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<p>The header is set to change the element on blur, the paragraph only changes when you submit with Enter.</p>
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<p>The three boxes are initialized in different ways. Clicking them changes their background color. View source to see how it works.</p>
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<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>
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</div><!-- End demo-description -->
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