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[wolnelektury.git] / 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 c403ab9..0717e0a 100644 (file)
--- 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
  * @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 = {
        };
 
        $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;
                }
                        settings = duration;
                        duration = 0;
                }
-               if( typeof settings == 'function' )
+               if (typeof settings === 'function') {
                        settings = { onAfter:settings };
                        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
                // Speed is still recognized for backwards compatibility
-               duration = duration || settings.speed || settings.duration;
+               duration = duration || settings.duration;
                // Make sure the settings are given right
                // 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;
                        // 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),
                                $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':
                                // 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;
                                        }
                                                // We are done
                                                break;
                                        }
-                                       // Relative selector, no break!
-                                       targ = $(targ,this);
+                                       // Relative/Absolute selector
+                                       targ = win ? $(targ) : $(targ, elem);
+                                       /* falls through */
                                case 'object':
                                case 'object':
+                                       if (targ.length === 0) return;
                                        // DOMElement / jQuery
                                        // DOMElement / jQuery
-                                       if( targ.is || targ.style )
+                                       if (targ.is || targ.style) {
                                                // Get the real position of the target
                                                toff = (targ = $(targ)).offset();
                                                // 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,
                                        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 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
                                                // 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'
 
                                // Number or 'number'
-                               if( /^\d+$/.test(attr[key]) )
+                               if (settings.limit && /^\d+$/.test(attr[key])) {
                                        // Check the limits
                                        // 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
                                                // 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;
+});