104 lines
4.2 KiB
JavaScript
Executable File
104 lines
4.2 KiB
JavaScript
Executable File
/**
|
|
* jQuery.LocalScroll
|
|
* Copyright (c) 2007-2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
|
|
* Dual licensed under MIT and GPL.
|
|
* Date: 6/3/2008
|
|
*
|
|
* @projectDescription Animated scrolling navigation, using anchors.
|
|
* http://flesler.blogspot.com/2007/10/jquerylocalscroll-10.html
|
|
* @author Ariel Flesler
|
|
* @version 1.2.6
|
|
*
|
|
* @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,area')//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;
|
|
// make sure this function is released
|
|
$(this).dequeue();
|
|
});
|
|
}
|
|
};
|
|
|
|
})( jQuery ); |