X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/357027375ff8867f42ca34bcbfb5a78b5b185fc3..53a66f70e4a8f9585b3d1a459542fb2e44f310f2:/src/wolnelektury/static/js/contrib/jquery.scrollto.js

diff --git a/src/wolnelektury/static/js/contrib/jquery.scrollto.js b/src/wolnelektury/static/js/contrib/jquery.scrollto.js
index c403ab9df..0717e0aa6 100644
--- a/src/wolnelektury/static/js/contrib/jquery.scrollto.js
+++ b/src/wolnelektury/static/js/contrib/jquery.scrollto.js
@@ -1,194 +1,215 @@
-/**
- * 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;
+});