/** * @author Bruno Bornsztein * @copyright 2007 Curbly LLC * @package Glider * @license MIT * @url http://www.missingmethod.com/projects/glider/ * @version 0.0.3 * @dependencies prototype.js 1.5.1+, effects.js */ /* Thanks to Andrew Dupont for refactoring help and code cleanup - http://andrewdupont.net/ */ Glider = Class.create(); Object.extend(Object.extend(Glider.prototype, Abstract.prototype), { initialize: function(wrapper, options){ this.scrolling = false; this.wrapper = $(wrapper); this.scroller = this.wrapper.down('div.scroller'); this.sections = this.wrapper.getElementsBySelector('div.section'); this.options = Object.extend({ duration: 1.0, frequency: 3 }, options || {}); this.sections.each( function(section, index) { section._index = index; }); this.events = { click: this.click.bind(this) }; this.addObservers(); if(this.options.initialSection) this.moveTo(this.options.initialSection, this.scroller, { duration:this.options.duration }); // initialSection should be the id of the section you want to show up on load if(this.options.autoGlide) this.start(); }, addObservers: function() { var controls = this.wrapper.getElementsBySelector('div.controls a'); controls.invoke('observe', 'click', this.events.click); }, click: function(event) { this.stop(); var element = Event.findElement(event, 'a'); if (this.scrolling) this.scrolling.cancel(); this.moveTo(element.href.split("#")[1], this.scroller, { duration:this.options.duration }); Event.stop(event); }, moveTo: function(element, container, options){ this.current = $(element); Position.prepare(); var containerOffset = Position.cumulativeOffset(container), elementOffset = Position.cumulativeOffset($(element)); this.scrolling = new Effect.SmoothScroll(container, {duration:options.duration, x:(elementOffset[0]-containerOffset[0]), y:(elementOffset[1]-containerOffset[1])}); return false; }, next: function(){ if (this.current) { var currentIndex = this.current._index; var nextIndex = (this.sections.length - 1 == currentIndex) ? 0 : currentIndex + 1; } else var nextIndex = 1; this.moveTo(this.sections[nextIndex], this.scroller, { duration: this.options.duration }); }, previous: function(){ if (this.current) { var currentIndex = this.current._index; var prevIndex = (currentIndex == 0) ? this.sections.length - 1 : currentIndex - 1; } else var prevIndex = this.sections.length - 1; this.moveTo(this.sections[prevIndex], this.scroller, { duration: this.options.duration }); }, stop: function() { clearTimeout(this.timer); }, start: function() { this.periodicallyUpdate(); }, periodicallyUpdate: function() { if (this.timer != null) { clearTimeout(this.timer); this.next(); } this.timer = setTimeout(this.periodicallyUpdate.bind(this), this.options.frequency*1000); } }); Effect.SmoothScroll = Class.create(); Object.extend(Object.extend(Effect.SmoothScroll.prototype, Effect.Base.prototype), { initialize: function(element) { this.element = $(element); var options = Object.extend({ x: 0, y: 0, mode: 'absolute' } , arguments[1] || {} ); this.start(options); }, setup: function() { if (this.options.continuous && !this.element._ext ) { this.element.cleanWhitespace(); 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