--- /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 / redakcja.git / blobdiff