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/** * jQuery.LocalScroll * Copyright (c) 2007-2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com * Dual licensed under MIT and GPL. * Date: 3/10/2008 * * @projectDescription Animated scrolling navigation, using anchors. * http://flesler.blogspot.com/2007/10/jquerylocalscroll-10.html * @author Ariel Flesler * @version 1.2.5 * * @id jQuery.fn.localScroll * @param {Object} settings Hash of settings, it is passed in to jQuery.ScrollTo, none is required. * @return {jQuery} Returns the same jQuery object, for chaining. * * @example $('ul.links').localScroll(); * * @example $('ul.links').localScroll({ filter:'.animated', duration:400, axis:'x' }); * * @example $.localScroll({ target:'#pane', axis:'xy', queue:true, event:'mouseover' }); * * Notes: * - The plugin requires jQuery.ScrollTo. * - The hash of settings, is passed to jQuery.ScrollTo, so the settings are valid for that plugin as well. * - jQuery.localScroll can be used if the desired links, are all over the document, it accepts the same settings. * - If the setting 'lazy' is set to true, then the binding will still work for later added anchors. * - The setting 'speed' is deprecated, use 'duration' instead. * - If onBefore returns false, the event is ignored. **/ ;(function( $ ){ var URI = location.href.replace(/#.*/,'');//local url without hash var $localScroll = $.localScroll = function( settings ){ $('body').localScroll( settings ); }; //Many of these defaults, belong to jQuery.ScrollTo, check it's demo for an example of each option. //@see http://www.freewebs.com/flesler/jQuery.ScrollTo/ $localScroll.defaults = {//the defaults are public and can be overriden. duration:1000, //how long to animate. axis:'y',//which of top and left should be modified. event:'click',//on which event to react. stop:true//avoid queuing animations /* lock:false,//ignore events if already animating lazy:false,//if true, links can be added later, and will still work. target:null, //what to scroll (selector or element). Keep it null if want to scroll the whole window. filter:null, //filter some anchors out of the matched elements. hash: false//if true, the hash of the selected link, will appear on the address bar. */ }; //if the URL contains a hash, it will scroll to the pointed element $localScroll.hash = function( settings ){ settings = $.extend( {}, $localScroll.defaults, settings ); settings.hash = false;//can't be true if( location.hash ) setTimeout(function(){ scroll( 0, location, settings ); }, 0 );//better wrapped with a setTimeout }; $.fn.localScroll = function( settings ){ settings = $.extend( {}, $localScroll.defaults, settings ); return ( settings.persistent || settings.lazy ) ? this.bind( settings.event, function( e ){//use event delegation, more links can be added later. var a = $([e.target, e.target.parentNode]).filter(filter)[0];//if a valid link was clicked. a && scroll( e, a, settings );//do scroll. }) : this.find('a')//bind concretely, to each matching link .filter( filter ).bind( settings.event, function(e){ scroll( e, this, settings ); }).end() .end(); function filter(){//is this a link that points to an anchor and passes a possible filter ? href is checked to avoid a bug in FF. return !!this.href && !!this.hash && this.href.replace(this.hash,'') == URI && (!settings.filter || $(this).is( settings.filter )); }; }; function scroll( e, link, settings ){ var id = link.hash.slice(1), elem = document.getElementById(id) || document.getElementsByName(id)[0]; if ( elem ){ e && e.preventDefault(); var $target = $( settings.target || $.scrollTo.window() );//if none specified, then the window. if( settings.lock && $target.is(':animated') || settings.onBefore && settings.onBefore.call(link, e, elem, $target) === false ) return; if( settings.stop ) $target.queue('fx',[]).stop();//remove all its animations $target .scrollTo( elem, settings )//do scroll .trigger('notify.serialScroll',[elem]);//notify serialScroll about this change if( settings.hash ) $target.queue(function(){ location = link.hash; }); } }; })( jQuery );