Created
April 8, 2011 04:54
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new jquery plugin in progress to support www.pilvinotes.com
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| (function( $ ){ | |
| $.fn.pollForChanges = function( interval, changedCallback ) { | |
| // this maps element ids to corresponding values | |
| var _mapIdsToValues = {}; | |
| // skip if not a textarea or an text input (for now) | |
| var inputs = this.filter("textarea,input[type='text']"); | |
| setInterval( function() { | |
| var aryIdsChanged = []; | |
| // figure out which elements' values changed | |
| inputs.each(function() { | |
| var elementId = this.id; | |
| // get the new value of this element | |
| var newValue = $("#" + elementId).val(); | |
| // add id to array if value changed | |
| if (newValue !== _mapIdsToValues[elementId]) { | |
| aryIdsChanged.push(elementId); | |
| } | |
| // store the new value | |
| _mapIdsToValues[elementId] = newValue; | |
| }); | |
| changedCallback(aryIdsChanged); | |
| }, interval); | |
| }; | |
| })( jQuery ); |
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| <html> | |
| <head> | |
| <title>test</title> | |
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> | |
| <script src="jquery.pollForChanges.js"></script> | |
| </head> | |
| <body> | |
| <input type="text" class="pollForChanges" id="tagList"></input> | |
| <textarea class="pollForChanges" id="noteContent" rows="20" cols="60"></textarea> | |
| <p id="status"></p> | |
| <script type="text/javascript"> | |
| $(function() { | |
| f1 = function( aryIdsChanged ) { | |
| $.each(aryIdsChanged, function(index, value) { | |
| $("#status").prepend(value + " <strong>changed!</strong><br/>"); | |
| }); | |
| } | |
| $(".pollForChanges").pollForChanges(1000, f1); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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