Created
November 22, 2012 13:10
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Animate scrolling to an element or offset
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/*! | |
* requires jQuery | |
* usage: | |
* Scroller.to({ offset: 100 }); | |
* Scroller.to({ target: $('#main') }); | |
* | |
* advanced usage (with additional easing function not provided here) | |
* Scroller.to({ target: $('#main'), delay: 500, multiplier: 1.5, easing: 'easeOutQuad' }); | |
*/ | |
var Scroller = (function() | |
{ | |
var scroll = { | |
options: { | |
el: $('html:not(:animated),body:not(:animated)'), | |
multiplier: 1, | |
offset: undefined, | |
easing: 'swing', | |
delay: 0 | |
}, | |
_scrolling: false | |
}; | |
scroll.to = function(options) | |
{ | |
var height = { | |
top: $(window).scrollTop(), | |
doc: $(document).height(), | |
win: $(window).height() | |
}; | |
if (height.doc <= height.win) { | |
return; | |
} | |
var config = $.extend({}, scroll.options); | |
config = $.extend(config, options || {}); | |
config.offset = isNaN(config.offset) ? config.target.offset().top : config.offset; | |
var offset = config.offset, | |
distance = Math.abs(height.top - offset); | |
if (height.top < offset) { | |
var max = height.doc - height.win; | |
if (offset > max) { | |
distance -= offset - max; | |
} | |
} | |
if (distance) { | |
if (scroll._scrolling) { | |
scroll.stop(); | |
} | |
scroll._scrolling = true; | |
scroll.timeout = window.setTimeout(function() { | |
config.el.animate({ scrollTop: Math.floor(offset) }, distance * config.multiplier, config.easing, function() | |
{ | |
scroll._scrolling = false; | |
}); | |
}, config.delay); | |
} | |
}; | |
scroll.stop = function() | |
{ | |
if (scroll.timeout) { | |
window.clearTimeout(scroll.timeout); | |
scroll.timeout = null; | |
} | |
scroll.options.el.stop(); | |
scroll._scrolling = false; | |
}; | |
scroll.isScrolling = function() | |
{ | |
return scroll._scrolling; | |
}; | |
return scroll; | |
})(); |
Without testing I think you'll need:
$('.scroll-links a').click(function(){
Scroller.to({ target: $('#' + this.hash) });
return false;
});
not sure if this.hash
includes the # or not. Either way wrap it in a jQuery object :)
Pretty sure it does ;)
Not using it myself, just sending it on
Wait probably more like this:
<a class="jump" href="#test">
$('.jump').on('click', function(e)
{
Scroller.to({ target: $( this.href ) });
});
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Will this work, as a general trigger for jump links?