-/**
- * 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.
- *
+/*!
+ * jQuery.scrollTo
+ * Copyright (c) 2007 Ariel Flesler - aflesler ○ gmail • com | https://github.com/flesler
+ * Licensed under MIT
+ * https://github.com/flesler/jquery.scrollTo
+ * @projectDescription Lightweight, cross-browser and highly customizable animated scrolling with jQuery
* @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 } );
+ * @version 2.1.3
*/
-;(function( $ ){
-
- var $scrollTo = $.scrollTo = function( target, duration, settings ){
- $(window).scrollTo( target, duration, settings );
+;(function(factory) {
+ 'use strict';
+ if (typeof define === 'function' && define.amd) {
+ // AMD
+ define(['jquery'], factory);
+ } else if (typeof module !== 'undefined' && module.exports) {
+ // CommonJS
+ module.exports = factory(require('jquery'));
+ } else {
+ // Global
+ factory(jQuery);
+ }
+})(function($) {
+ 'use strict';
+
+ var $scrollTo = $.scrollTo = function(target, duration, settings) {
+ return $(window).scrollTo(target, duration, settings);
};
$scrollTo.defaults = {
- axis:'y',
- duration:1
+ axis:'xy',
+ duration: 0,
+ limit:true
};
- // 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();
- };
+ function isWin(elem) {
+ return !elem.nodeName ||
+ $.inArray(elem.nodeName.toLowerCase(), ['iframe','#document','html','body']) !== -1;
+ }
- // 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;
- });
- };
+ function isFunction(obj) {
+ // Brought from jQuery since it's deprecated
+ return typeof obj === 'function'
+ }
- $.fn.scrollTo = function( target, duration, settings ){
- if( typeof duration == 'object' ){
+ $.fn.scrollTo = function(target, duration, settings) {
+ if (typeof duration === 'object') {
settings = duration;
duration = 0;
}
- if( typeof settings == 'function' )
+ if (typeof settings === 'function') {
settings = { onAfter:settings };
+ }
+ if (target === 'max') {
+ target = 9e9;
+ }
- settings = $.extend( {}, $scrollTo.defaults, settings );
+ settings = $.extend({}, $scrollTo.defaults, settings);
// Speed is still recognized for backwards compatibility
- duration = duration || settings.speed || settings.duration;
+ duration = duration || settings.duration;
// Make sure the settings are given right
- settings.queue = settings.queue && settings.axis.length > 1;
-
- if( settings.queue )
+ var queue = settings.queue && settings.axis.length > 1;
+ if (queue) {
// Let's keep the overall duration
duration /= 2;
- settings.offset = both( settings.offset );
- settings.over = both( settings.over );
+ }
+ settings.offset = both(settings.offset);
+ settings.over = both(settings.over);
+
+ return this.each(function() {
+ // Null target yields nothing, just like jQuery does
+ if (target === null) return;
- return this.scrollable().each(function(){
- var elem = this,
+ var win = isWin(this),
+ elem = win ? this.contentWindow || window : this,
$elem = $(elem),
- targ = target, toff, attr = {},
- win = $elem.is('html,body');
+ targ = target,
+ attr = {},
+ toff;
- switch( typeof targ ){
+ switch (typeof targ) {
// A number will pass the regex
case 'number':
case 'string':
- if( /^([+-]=)?\d+(px)?$/.test(targ) ){
- targ = both( targ );
+ if (/^([+-]=?)?\d+(\.\d+)?(px|%)?$/.test(targ)) {
+ targ = both(targ);
// We are done
break;
}
- // Relative selector, no break!
- targ = $(targ,this);
+ // Relative/Absolute selector
+ targ = win ? $(targ) : $(targ, elem);
+ /* falls through */
case 'object':
+ if (targ.length === 0) return;
// DOMElement / jQuery
- if( targ.is || targ.style )
+ 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',
+
+ var offset = isFunction(settings.offset) && settings.offset(elem, targ) || settings.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();
+ prev = $elem[key](),
+ max = $scrollTo.max(elem, axis);
- if( toff ){// jQuery / DOMElement
- attr[key] = toff[pos] + ( win ? 0 : old - $elem.offset()[pos] );
+ if (toff) {// jQuery / DOMElement
+ attr[key] = toff[pos] + (win ? 0 : prev - $elem.offset()[pos]);
// If it's a dom element, reduce the margin
- if( settings.margin ){
- attr[key] -= parseInt(targ.css('margin'+Pos)) || 0;
- attr[key] -= parseInt(targ.css('border'+Pos+'Width')) || 0;
+ if (settings.margin) {
+ attr[key] -= parseInt(targ.css('margin'+Pos), 10) || 0;
+ attr[key] -= parseInt(targ.css('border'+Pos+'Width'), 10) || 0;
}
- attr[key] += settings.offset[pos] || 0;
+ attr[key] += offset[pos] || 0;
- if( settings.over[pos] )
+ if (settings.over[pos]) {
// Scroll to a fraction of its width/height
- attr[key] += targ[dim]() * settings.over[pos];
- }else
- attr[key] = targ[pos];
+ attr[key] += targ[axis === 'x'?'width':'height']() * settings.over[pos];
+ }
+ } else {
+ var val = targ[pos];
+ // Handle percentage values
+ attr[key] = val.slice && val.slice(-1) === '%' ?
+ parseFloat(val) / 100 * max
+ : val;
+ }
// Number or 'number'
- if( /^\d+$/.test(attr[key]) )
+ if (settings.limit && /^\d+$/.test(attr[key])) {
// Check the limits
- attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max(Dim) );
+ attr[key] = attr[key] <= 0 ? 0 : Math.min(attr[key], max);
+ }
- // Queueing axes
- if( !i && settings.queue ){
- // Don't waste time animating, if there's no need.
- if( old != attr[key] )
+ // Don't waste time animating, if there's no need.
+ if (!i && settings.axis.length > 1) {
+ if (prev === attr[key]) {
+ // No animation needed
+ attr = {};
+ } else if (queue) {
// Intermediate animation
- animate( settings.onAfterFirst );
- // Don't animate this axis again in the next iteration.
- delete attr[key];
+ animate(settings.onAfterFirst);
+ // Don't animate this axis again in the next iteration.
+ attr = {};
+ }
}
});
- animate( settings.onAfter );
- function animate( callback ){
- $elem.animate( attr, duration, settings.easing, callback && function(){
- callback.call(this, target, settings);
+ animate(settings.onAfter);
+
+ function animate(callback) {
+ var opts = $.extend({}, settings, {
+ // The queue setting conflicts with animate()
+ // Force it to always be true
+ queue: true,
+ duration: duration,
+ complete: callback && function() {
+ callback.call(elem, targ, settings);
+ }
});
- };
- function max( Dim ){
- var attr ='scroll'+Dim,
- doc = elem.ownerDocument;
-
- return win
- ? Math.max( doc.documentElement[attr], doc.body[attr] )
- : elem[attr];
- };
- }).end();
+ $elem.animate(attr, opts);
+ }
+ });
+ };
+
+ // Max scrolling position, works on quirks mode
+ // It only fails (not too badly) on IE, quirks mode.
+ $scrollTo.max = function(elem, axis) {
+ var Dim = axis === 'x' ? 'Width' : 'Height',
+ scroll = 'scroll'+Dim;
+
+ if (!isWin(elem))
+ return elem[scroll] - $(elem)[Dim.toLowerCase()]();
+
+ var size = 'client' + Dim,
+ doc = elem.ownerDocument || elem.document,
+ html = doc.documentElement,
+ body = doc.body;
+
+ return Math.max(html[scroll], body[scroll]) - Math.min(html[size], body[size]);
};
- function both( val ){
- return typeof val == 'object' ? val : { top:val, left:val };
+ function both(val) {
+ return isFunction(val) || $.isPlainObject(val) ? val : { top:val, left:val };
+ }
+
+ // Add special hooks so that window scroll properties can be animated
+ $.Tween.propHooks.scrollLeft =
+ $.Tween.propHooks.scrollTop = {
+ get: function(t) {
+ return $(t.elem)[t.prop]();
+ },
+ set: function(t) {
+ var curr = this.get(t);
+ // If interrupt is true and user scrolled, stop animating
+ if (t.options.interrupt && t._last && t._last !== curr) {
+ return $(t.elem).stop();
+ }
+ var next = Math.round(t.now);
+ // Don't waste CPU
+ // Browsers don't render floating point scroll
+ if (curr !== next) {
+ $(t.elem)[t.prop](next);
+ t._last = this.get(t);
+ }
+ }
};
-})( jQuery );
\ No newline at end of file
+ // AMD requirement
+ return $scrollTo;
+});
fnp / wolnelektury.git / blobdiff