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@ -30,7 +30,9 @@ $.fn.sticky = function(parameters) { |
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$allModules |
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.each(function() { |
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var |
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settings = $.extend(true, {}, $.fn.sticky.settings, parameters), |
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settings = ( $.isPlainObject(parameters) ) |
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? $.extend(true, {}, $.fn.sticky.settings, parameters) |
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: $.extend({}, $.fn.sticky.settings), |
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className = settings.className, |
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namespace = settings.namespace, |
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@ -62,35 +64,14 @@ $.fn.sticky = function(parameters) { |
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module = { |
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initialize: function() { |
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if(settings.context) { |
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$context = $(settings.context); |
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} |
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else { |
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$context = $container; |
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} |
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if($context.length === 0) { |
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module.error(error.invalidContext, settings.context, $module); |
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return; |
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} |
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module.determineContext(); |
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module.verbose('Initializing sticky', settings, $container); |
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module.save.positions(); |
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// error conditions
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if( module.is.hidden() ) { |
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module.error(error.visible, $module); |
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} |
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if(module.cache.element.height > module.cache.context.height) { |
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module.reset(); |
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module.error(error.elementSize, $module); |
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return; |
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} |
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module.save.positions(); |
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module.checkErrors(); |
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module.bind.events(); |
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$window |
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.on('resize' + eventNamespace, module.event.resize) |
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; |
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$scroll |
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.on('scroll' + eventNamespace, module.event.scroll) |
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; |
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if(settings.observeChanges) { |
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module.observeChanges(); |
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} |
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@ -111,15 +92,9 @@ $.fn.sticky = function(parameters) { |
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if(observer) { |
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observer.disconnect(); |
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} |
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$window |
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.off('resize' + eventNamespace, module.event.resize) |
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; |
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$scroll |
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.off('scroll' + eventNamespace, module.event.scroll) |
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; |
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$module |
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.removeData(moduleNamespace) |
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; |
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$window.off('resize' + eventNamespace, module.event.resize); |
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$scroll.off('scroll' + eventNamespace, module.event.scroll); |
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$module.removeData(moduleNamespace); |
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}, |
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observeChanges: function() { |
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@ -146,6 +121,37 @@ $.fn.sticky = function(parameters) { |
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} |
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}, |
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determineContext: function() { |
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if(settings.context) { |
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$context = $(settings.context); |
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} |
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else { |
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$context = $container; |
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} |
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if($context.length === 0) { |
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module.error(error.invalidContext, settings.context, $module); |
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return; |
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} |
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}, |
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checkErrors: function() { |
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if( module.is.hidden() ) { |
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module.error(error.visible, $module); |
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} |
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if(module.cache.element.height > module.cache.context.height) { |
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module.reset(); |
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module.error(error.elementSize, $module); |
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return; |
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} |
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}, |
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bind: { |
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events: function() { |
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$window.on('resize' + eventNamespace, module.event.resize); |
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$scroll.on('scroll' + eventNamespace, module.event.scroll); |
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} |
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}, |
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event: { |
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resize: function() { |
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requestAnimationFrame(function() { |
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@ -177,9 +183,7 @@ $.fn.sticky = function(parameters) { |
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$element = $('<div/>'), |
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element = $element.get() |
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; |
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$element |
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.addClass(className.supported) |
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; |
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$element.addClass(className.supported); |
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return($element.css('position').match('sticky')); |
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} |
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}, |
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@ -203,8 +207,9 @@ $.fn.sticky = function(parameters) { |
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height : $module.outerHeight() |
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}, |
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context = { |
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offset: $context.offset(), |
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height: $context.outerHeight() |
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offset : $context.offset(), |
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height : $context.outerHeight(), |
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bottomPadding : parseInt($context.css('padding-bottom'), 10) |
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} |
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; |
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module.cache = { |
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@ -221,9 +226,10 @@ $.fn.sticky = function(parameters) { |
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bottom : element.offset.top + element.height |
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}, |
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context: { |
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top : context.offset.top, |
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height : context.height, |
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bottom : context.offset.top + context.height |
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top : context.offset.top, |
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height : context.height, |
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bottomPadding : context.bottomPadding, |
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bottom : context.offset.top + context.height - context.bottomPadding |
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} |
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}; |
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module.set.containerSize(); |
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@ -309,7 +315,9 @@ $.fn.sticky = function(parameters) { |
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else { |
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module.debug('Settings container size', module.cache.context.height); |
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if( Math.abs($container.height() - module.cache.context.height) > 5) { |
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$container.height(module.cache.context.height); |
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$container.css({ |
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height: module.cache.context.height |
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}); |
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} |
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} |
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}, |
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@ -389,7 +397,12 @@ $.fn.sticky = function(parameters) { |
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if(elementVisible) { |
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if( module.is.initialPosition() ) { |
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if(scroll.top >= element.top) { |
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if(scroll.top >= context.bottom) { |
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console.log(scroll.top, context.bottom); |
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module.debug('Element bottom of container'); |
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module.bindBottom(); |
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} |
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else if(scroll.top >= element.top) { |
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module.debug('Element passed, fixing element to page'); |
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module.fixTop(); |
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} |
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@ -470,7 +483,7 @@ $.fn.sticky = function(parameters) { |
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$module |
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.css('left' , '') |
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.css('top' , '') |
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.css('bottom' , '') |
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.css('bottom' , module.cache.context.bottomPadding) |
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.removeClass(className.fixed) |
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.removeClass(className.top) |
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.addClass(className.bound) |
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@ -491,6 +504,7 @@ $.fn.sticky = function(parameters) { |
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module.set.offset(); |
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$module |
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.css('left', module.cache.element.left) |
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.css('bottom' , '') |
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.removeClass(className.bound) |
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.removeClass(className.bottom) |
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.addClass(className.fixed) |
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@ -504,6 +518,7 @@ $.fn.sticky = function(parameters) { |
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module.set.offset(); |
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$module |
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.css('left', module.cache.element.left) |
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.css('bottom' , '') |
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.removeClass(className.bound) |
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.removeClass(className.top) |
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.addClass(className.fixed) |
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