X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/362ea2e7f8ac4254398791139cc060090199f400..7e890833260e5aef8ae217d195309b76fa91c02f:/wolnelektury/static/js/jquery.scrollto.js diff --git a/wolnelektury/static/js/jquery.scrollto.js b/wolnelektury/static/js/jquery.scrollto.js index 7f4248922..c403ab9df 100644 --- a/wolnelektury/static/js/jquery.scrollto.js +++ b/wolnelektury/static/js/jquery.scrollto.js @@ -1,194 +1,194 @@ -/** - * 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.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 ); \ No newline at end of file