/* * simplyScroll 1.0.4 - a scroll-tastic jQuery plugin * * http://logicbox.net/jquery/simplyscroll * http://logicbox.net/blog/simplyscroll-jquery-plugin * http://plugins.jquery.com/project/simplyScroll * * Copyright (c) 2009 Will Kelly - http://logicbox.net * * Dual licensed under the MIT (MIT-LICENSE.txt) * and GPL (GPL-LICENSE.txt) licenses. * * Last revised: 03/07/2009 21:13 * */ (function($) { $.fn.simplyScroll = function(o) { return this.each(function() { new $.simplyScroll(this,o); }); }; var defaults = { className: 'simply-scroll', frameRate: 24, //No of movements per second speed: 1, //No of pixels per frame horizontal: true, autoMode: 'off', //disables buttons 'loop','bounce' pauseOnHover: true, startOnLoad: false, //use this if having rendering problems (safari 3 + Mac OSX?) localJsonSource: '', //format [{"src":"images/pic.jpg","title":"title","link":"http://"},{etc..}] flickrFeed: '', jsonImgWidth: 240, jsonImgHeight: 180 }; $.simplyScroll = function(el,o) { var self = this; this.o = $.extend({}, defaults, o || {}); this.auto = this.o.autoMode!=="off" ? true : false; //called on ul/ol/div etc this.$list = $(el); //generate extra markup this.$list.addClass('simply-scroll-list') .wrap('
') .parent().wrap(''); if (!this.o.auto) { //button placeholders this.$list.parent().parent() .prepend('') .prepend(''); } //load image data if (this.o.flickrFeed) { $.getJSON(this.o.flickrFeed + "&format=json&jsoncallback=?", function(data) { json = []; $.each(data.items, function(i,item) { json.push({ "src": item.media.m, "title": item.title, "link": item.link }); }); self.renderData(json); } ); } else if (this.o.localJsonSource) { $.getJSON(this.o.localJsonSource, function(json) { self.renderData(json); } ); } else { if (!this.o.startOnLoad) { this.init(); } else { //wait for load before completing setup $(window).load(function() { self.init(); }); } } }; $.simplyScroll.fn = $.simplyScroll.prototype = {}; $.simplyScroll.fn.extend = $.simplyScroll.extend = $.extend; $.simplyScroll.fn.extend({ init: function() { //shortcuts this.$items = this.$list.children(); this.$clip = this.$list.parent(); this.$container = this.$clip.parent(); if (!this.o.horizontal) { this.itemMax = this.$items.eq(0).outerHeight(true); this.clipMax = this.$clip.height(); this.dimension = 'height'; this.moveBackClass = 'simply-scroll-btn-up'; this.moveForwardClass = 'simply-scroll-btn-down'; } else { this.itemMax = this.$items.eq(0).outerWidth(true); this.clipMax = this.$clip.width(); this.dimension = 'width'; this.moveBackClass = 'simply-scroll-btn-left'; this.moveForwardClass = 'simply-scroll-btn-right'; } this.posMin = 0; /* IMPORTANT: The script assumes multiple elements within a list are the same width or height to work out how many extra elements to generate to simulate the loop. If you want this script to work with unequal sized elements don't modify the next line to do this: this.$items.each(function() { self.posMax += !this.o.horizontal ? $(this).outerHeight(true) : $(this).outerWidth(true); }); as it will cause white-space and a jump to appear when elements have wildly different dimensions See: http://logicbox.net/jquery/simplyscroll/test_unequalelements.html Instead simply add an extra wrapper element around your list and init simplyScroll on that, essentially scrolling just one element. Less efficient but it does the job! */ this.posMax = this.$items.length * this.itemMax; this.$list.css(this.dimension,this.posMax +'px'); if (this.o.autoMode=='loop') { var addItems = Math.ceil(this.clipMax / this.itemMax); this.$items.slice(0,addItems).clone(true).appendTo(this.$list); this.posMax += (this.clipMax - this.o.speed); this.$list.css(this.dimension,this.posMax+(this.itemMax*addItems) +'px'); } this.interval = null; this.intervalDelay = Math.floor(1000 / this.o.frameRate); //ensure that speed is divisible by item width while (this.itemMax % this.o.speed !== 0) { this.o.speed--; if (this.o.speed===0) { this.o.speed=1; break; } } var self = this; this.trigger = null; this.funcMoveBack = function() { self.trigger=this;self.moveBack(); }; this.funcMoveForward = function() { self.trigger=this;self.moveForward(); }; this.funcMoveStop = function() { self.moveStop(); }; this.funcMoveResume = function() { self.moveResume(); }; if (this.auto) { if (this.o.pauseOnHover) { this.$clip.hover(this.funcMoveStop,this.funcMoveResume); } this.moveForward(); } else { this.$btnBack = $('.simply-scroll-back',this.$container) .addClass('simply-scroll-btn' + ' ' + this.moveBackClass + ' ' + 'disabled') .hover(this.funcMoveBack,this.funcMoveStop); this.$btnForward = $('.simply-scroll-forward',this.$container) .addClass('simply-scroll-btn' + ' ' + this.moveForwardClass) .hover(this.funcMoveForward,this.funcMoveStop); } }, moveForward: function() { var self = this; this.movement = 'forward'; if (this.trigger !== null) { this.$btnBack.removeClass('disabled'); } self.interval = setInterval(function() { if (!self.o.horizontal && self.$clip[0].scrollTop < (self.posMax-self.clipMax)) { self.$clip[0].scrollTop += self.o.speed; } else if (self.o.horizontal && self.$clip[0].scrollLeft < (self.posMax-self.clipMax)) { self.$clip[0].scrollLeft += self.o.speed; } else if (self.o.autoMode=='loop') { self.resetPos(); } else { self.moveStop(self.movement); } },self.intervalDelay); }, moveBack: function() { var self = this; this.movement = 'back'; if (this.trigger !== null) { this.$btnForward.removeClass('disabled'); } self.interval = setInterval(function() { if (!self.o.horizontal && self.$clip[0].scrollTop>0) { self.$clip[0].scrollTop -= self.o.speed; } else if (self.o.horizontal && self.$clip[0].scrollLeft>0) { self.$clip[0].scrollLeft -= self.o.speed; } else if (self.o.autoMode=='loop') { self.resetPos(); } else { self.moveStop(self.movement); } },self.intervalDelay); }, moveStop: function(moveDir) { clearInterval(this.interval); if (this.trigger!==null) { if (typeof moveDir != "undefined") { $(this.trigger).addClass('disabled'); } this.trigger = null; } if (this.auto) { if (this.o.autoMode=='bounce') { moveDir == 'forward' ? this.moveBack() : this.moveForward(); } } }, moveResume: function() { this.movement=='forward' ? this.moveForward() : this.moveBack(); }, resetPos: function() { if (!this.o.horizontal) { this.$clip[0].scrollTop = 0; } else { this.$clip[0].scrollLeft = 0; } }, renderData: function(json) { if (json.length>0) { //render json data var self = this; $.each(json, function(i,item) { $("").attr({ src: item.src, title: item.title, alt: item.title, width: self.o.jsonImgWidth, height: self.o.jsonImgHeight }).appendTo(self.$list); }); this.init(); } } }); })(jQuery);