+++ /dev/null
-/**
- * jQuery.ScrollTo
- * Copyright (c) 2007-2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
- * Dual licensed under MIT and GPL.
- * Date: 9/11/2008
- *
- * @projectDescription Easy element scrolling using jQuery.
- * http://flesler.blogspot.com/2007/10/jqueryscrollto.html
- * Tested with jQuery 1.2.6. On FF 2/3, IE 6/7, Opera 9.2/5 and Safari 3. on Windows.
- *
- * @author Ariel Flesler
- * @version 1.4
- *
- * @id jQuery.scrollTo
- * @id jQuery.fn.scrollTo
- * @param {String, Number, DOMElement, jQuery, Object} target Where to scroll the matched elements.
- * The different options for target are:
- * - A number position (will be applied to all axes).
- * - A string position ('44', '100px', '+=90', etc ) will be applied to all axes
- * - A jQuery/DOM element ( logically, child of the element to scroll )
- * - A string selector, that will be relative to the element to scroll ( 'li:eq(2)', etc )
- * - A hash { top:x, left:y }, x and y can be any kind of number/string like above.
- * @param {Number} duration The OVERALL length of the animation, this argument can be the settings object instead.
- * @param {Object,Function} settings Optional set of settings or the onAfter callback.
- * @option {String} axis Which axis must be scrolled, use 'x', 'y', 'xy' or 'yx'.
- * @option {Number} duration The OVERALL length of the animation.
- * @option {String} easing The easing method for the animation.
- * @option {Boolean} margin If true, the margin of the target element will be deducted from the final position.
- * @option {Object, Number} offset Add/deduct from the end position. One number for both axes or { top:x, left:y }.
- * @option {Object, Number} over Add/deduct the height/width multiplied by 'over', can be { top:x, left:y } when using both axes.
- * @option {Boolean} queue If true, and both axis are given, the 2nd axis will only be animated after the first one ends.
- * @option {Function} onAfter Function to be called after the scrolling ends.
- * @option {Function} onAfterFirst If queuing is activated, this function will be called after the first scrolling ends.
- * @return {jQuery} Returns the same jQuery object, for chaining.
- *
- * @desc Scroll to a fixed position
- * @example $('div').scrollTo( 340 );
- *
- * @desc Scroll relatively to the actual position
- * @example $('div').scrollTo( '+=340px', { axis:'y' } );
- *
- * @dec Scroll using a selector (relative to the scrolled element)
- * @example $('div').scrollTo( 'p.paragraph:eq(2)', 500, { easing:'swing', queue:true, axis:'xy' } );
- *
- * @ Scroll to a DOM element (same for jQuery object)
- * @example var second_child = document.getElementById('container').firstChild.nextSibling;
- * $('#container').scrollTo( second_child, { duration:500, axis:'x', onAfter:function(){
- * alert('scrolled!!');
- * }});
- *
- * @desc Scroll on both axes, to different values
- * @example $('div').scrollTo( { top: 300, left:'+=200' }, { axis:'xy', offset:-20 } );
- */
-;(function( $ ){
-
- var $scrollTo = $.scrollTo = function( target, duration, settings ){
- $(window).scrollTo( target, duration, settings );
- };
-
- $scrollTo.defaults = {
- axis:'y',
- duration:1
- };
-
- // Returns the element that needs to be animated to scroll the window.
- // Kept for backwards compatibility (specially for localScroll & serialScroll)
- $scrollTo.window = function( scope ){
- return $(window).scrollable();
- };
-
- // Hack, hack, hack... stay away!
- // Returns the real elements to scroll (supports window/iframes, documents and regular nodes)
- $.fn.scrollable = function(){
- return this.map(function(){
- // Just store it, we might need it
- var win = this.parentWindow || this.defaultView,
- // If it's a document, get its iframe or the window if it's THE document
- elem = this.nodeName == '#document' ? win.frameElement || win : this,
- // Get the corresponding document
- doc = elem.contentDocument || (elem.contentWindow || elem).document,
- isWin = elem.setInterval;
-
- return elem.nodeName == 'IFRAME' || isWin && $.browser.safari ? doc.body
- : isWin ? doc.documentElement
- : this;
- });
- };
-
- $.fn.scrollTo = function( target, duration, settings ){
- if( typeof duration == 'object' ){
- settings = duration;
- duration = 0;
- }
- if( typeof settings == 'function' )
- settings = { onAfter:settings };
-
- settings = $.extend( {}, $scrollTo.defaults, settings );
- // Speed is still recognized for backwards compatibility
- duration = duration || settings.speed || settings.duration;
- // Make sure the settings are given right
- settings.queue = settings.queue && settings.axis.length > 1;
-
- if( settings.queue )
- // Let's keep the overall duration
- duration /= 2;
- settings.offset = both( settings.offset );
- settings.over = both( settings.over );
-
- return this.scrollable().each(function(){
- var elem = this,
- $elem = $(elem),
- targ = target, toff, attr = {},
- win = $elem.is('html,body');
-
- switch( typeof targ ){
- // A number will pass the regex
- case 'number':
- case 'string':
- if( /^([+-]=)?\d+(px)?$/.test(targ) ){
- targ = both( targ );
- // We are done
- break;
- }
- // Relative selector, no break!
- targ = $(targ,this);
- case 'object':
- // DOMElement / jQuery
- if( targ.is || targ.style )
- // Get the real position of the target
- toff = (targ = $(targ)).offset();
- }
- $.each( settings.axis.split(''), function( i, axis ){
- var Pos = axis == 'x' ? 'Left' : 'Top',
- pos = Pos.toLowerCase(),
- key = 'scroll' + Pos,
- old = elem[key],
- Dim = axis == 'x' ? 'Width' : 'Height',
- dim = Dim.toLowerCase();
-
- if( toff ){// jQuery / DOMElement
- attr[key] = toff[pos] + ( win ? 0 : old - $elem.offset()[pos] );
-
- // If it's a dom element, reduce the margin
- if( settings.margin ){
- attr[key] -= parseInt(targ.css('margin'+Pos)) || 0;
- attr[key] -= parseInt(targ.css('border'+Pos+'Width')) || 0;
- }
-
- attr[key] += settings.offset[pos] || 0;
-
- if( settings.over[pos] )
- // Scroll to a fraction of its width/height
- attr[key] += targ[dim]() * settings.over[pos];
- }else
- attr[key] = targ[pos];
-
- // Number or 'number'
- if( /^\d+$/.test(attr[key]) )
- // Check the limits
- attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max(Dim) );
-
- // Queueing axes
- if( !i && settings.queue ){
- // Don't waste time animating, if there's no need.
- if( old != attr[key] )
- // Intermediate animation
- animate( settings.onAfterFirst );
- // Don't animate this axis again in the next iteration.
- delete attr[key];
- }
- });
- animate( settings.onAfter );
-
- function animate( callback ){
- $elem.animate( attr, duration, settings.easing, callback && function(){
- callback.call(this, target, settings);
- });
- };
- function max( Dim ){
- var attr ='scroll'+Dim,
- doc = elem.ownerDocument;
-
- return win
- ? Math.max( doc.documentElement[attr], doc.body[attr] )
- : elem[attr];
- };
- }).end();
- };
-
- function both( val ){
- return typeof val == 'object' ? val : { top:val, left:val };
- };
-
-})( jQuery );
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fnp / wolnelektury.git / blobdiff