/* Thank you Drew McLellan for starting us off with http://24ways.org/2006/tasty-text-trimmer */ TextTrimmer = Class.create(); TextTrimmer.prototype = { initialize: function(prefix, attachitem, chunkClass, minValue, maxValue) { var thisTrimmer = this; this.prefix = prefix; this.attachitem = prefix+attachitem; this.chunkClass = chunkClass; this.minValue = minValue; this.maxValue = maxValue; this.curValue = maxValue; this.chunks = false; this.sliderhandle = prefix+'trimmerhandle'; this.slidertrack = prefix+'trimmertrack'; this.trimmore = prefix+'trimmermore'; this.trimless = prefix+'trimmerless'; this.trimSlider = new Control.Slider(thisTrimmer.sliderhandle, thisTrimmer.slidertrack, { range: $R(thisTrimmer.minValue, thisTrimmer.maxValue), sliderValue: thisTrimmer.maxValue, onSlide: function(value) { thisTrimmer.doTrim(value); }, onChange: function(value) { thisTrimmer.doTrim(value); } }); this.trimMoreListener = this.trimMoreAction.bindAsEventListener(this); this.trimLessListener = this.trimLessAction.bindAsEventListener(this); Event.observe(this.trimmore, 'click', this.trimMoreListener); Event.observe(this.trimless, 'click', this.trimLessListener); }, trimMoreAction: function() { this.trimSlider.setValue(this.curValue + 20); }, trimLessAction: function() { this.trimSlider.setValue(this.curValue - 20); }, addClass: function() { if (this.prefix != '') { $('dynamic-content').addClassName("trimmed"); } else { $('current-content').addClassName("trimmed"); } }, removeClass: function() { if (this.prefix != '') { $('dynamic-content').removeClassName("trimmed"); } else { $('current-content').removeClassName("trimmed"); } }, trimAgain: function(value) { this.loadChunks(); this.doTrim(value); }, loadChunks: function() { if (this.prefix != '') { /* Dynamic chunks */ var everything = $('dynamic-content').getElementsByClassName(this.chunkClass); } else { /* Normal chunks */ var everything = $('current-content').getElementsByClassName(this.chunkClass); } this.chunks = []; for (i=0; i'; } } /* Add 'trimmed' class to while active */ if (this.curValue != this.maxValue) { this.addClass(); } else { this.removeClass(); } } }