LocalCDN-Firefox-Chrome-Brave/resources/semantic-ui/2.5.0/components/visibility.min.jsm

1 line
16 KiB
JavaScript

!function(O,z,A,w){"use strict";z=void 0!==z&&z.Math==Math?z:"undefined"!=typeof self&&self.Math==Math?self:Function("return this")(),O.fn.visibility=function(h){var P,e=O(this),x=e.selector||"",C=(new Date).getTime(),y=[],S=h,R="string"==typeof S,V=[].slice.call(arguments,1),k=e.length,T=0;return e.each(function(){var e,o,n,i=O.isPlainObject(h)?O.extend(!0,{},O.fn.visibility.settings,h):O.extend({},O.fn.visibility.settings),t=i.className,s=i.namespace,r=i.error,c=i.metadata,a="."+s,l="module-"+s,d=O(z),u=O(this),f=O(i.context),b=(u.selector,u.data(l)),g=z.requestAnimationFrame||z.mozRequestAnimationFrame||z.webkitRequestAnimationFrame||z.msRequestAnimationFrame||function(e){setTimeout(e,0)},m=this,p=!1,v={initialize:function(){v.debug("Initializing",i),v.setup.cache(),v.should.trackChanges()&&("image"==i.type&&v.setup.image(),"fixed"==i.type&&v.setup.fixed(),i.observeChanges&&v.observeChanges(),v.bind.events()),v.save.position(),v.is.visible()||v.error(r.visible,u),i.initialCheck&&v.checkVisibility(),v.instantiate()},instantiate:function(){v.debug("Storing instance",v),u.data(l,v),b=v},destroy:function(){v.verbose("Destroying previous module"),n&&n.disconnect(),o&&o.disconnect(),d.off("load"+a,v.event.load).off("resize"+a,v.event.resize),f.off("scroll"+a,v.event.scroll).off("scrollchange"+a,v.event.scrollchange),"fixed"==i.type&&(v.resetFixed(),v.remove.placeholder()),u.off(a).removeData(l)},observeChanges:function(){"MutationObserver"in z&&(o=new MutationObserver(v.event.contextChanged),n=new MutationObserver(v.event.changed),o.observe(A,{childList:!0,subtree:!0}),n.observe(m,{childList:!0,subtree:!0}),v.debug("Setting up mutation observer",n))},bind:{events:function(){v.verbose("Binding visibility events to scroll and resize"),i.refreshOnLoad&&d.on("load"+a,v.event.load),d.on("resize"+a,v.event.resize),f.off("scroll"+a).on("scroll"+a,v.event.scroll).on("scrollchange"+a,v.event.scrollchange)}},event:{changed:function(e){v.verbose("DOM tree modified, updating visibility calculations"),v.timer=setTimeout(function(){v.verbose("DOM tree modified, updating sticky menu"),v.refresh()},100)},contextChanged:function(e){[].forEach.call(e,function(e){e.removedNodes&&[].forEach.call(e.removedNodes,function(e){(e==m||0<O(e).find(m).length)&&(v.debug("Element removed from DOM, tearing down events"),v.destroy())})})},resize:function(){v.debug("Window resized"),i.refreshOnResize&&g(v.refresh)},load:function(){v.debug("Page finished loading"),g(v.refresh)},scroll:function(){i.throttle?(clearTimeout(v.timer),v.timer=setTimeout(function(){f.triggerHandler("scrollchange"+a,[f.scrollTop()])},i.throttle)):g(function(){f.triggerHandler("scrollchange"+a,[f.scrollTop()])})},scrollchange:function(e,o){v.checkVisibility(o)}},precache:function(e,o){e instanceof Array||(e=[e]);for(var n=e.length,t=0,i=[],s=A.createElement("img"),c=function(){++t>=e.length&&O.isFunction(o)&&o()};n--;)(s=A.createElement("img")).onload=c,s.onerror=c,s.src=e[n],i.push(s)},enableCallbacks:function(){v.debug("Allowing callbacks to occur"),p=!1},disableCallbacks:function(){v.debug("Disabling all callbacks temporarily"),p=!0},should:{trackChanges:function(){return R?(v.debug("One time query, no need to bind events"),!1):(v.debug("Callbacks being attached"),!0)}},setup:{cache:function(){v.cache={occurred:{},screen:{},element:{}}},image:function(){var e=u.data(c.src);e&&(v.verbose("Lazy loading image",e),i.once=!0,i.observeChanges=!1,i.onOnScreen=function(){v.debug("Image on screen",m),v.precache(e,function(){v.set.image(e,function(){++T==k&&i.onAllLoaded.call(this),i.onLoad.call(this)})})})},fixed:function(){v.debug("Setting up fixed"),i.once=!1,i.observeChanges=!1,i.initialCheck=!0,i.refreshOnLoad=!0,h.transition||(i.transition=!1),v.create.placeholder(),v.debug("Added placeholder",e),i.onTopPassed=function(){v.debug("Element passed, adding fixed position",u),v.show.placeholder(),v.set.fixed(),i.transition&&O.fn.transition!==w&&u.transition(i.transition,i.duration)},i.onTopPassedReverse=function(){v.debug("Element returned to position, removing fixed",u),v.hide.placeholder(),v.remove.fixed()}}},create:{placeholder:function(){v.verbose("Creating fixed position placeholder"),e=u.clone(!1).css("display","none").addClass(t.placeholder).insertAfter(u)}},show:{placeholder:function(){v.verbose("Showing placeholder"),e.css("display","block").css("visibility","hidden")}},hide:{placeholder:function(){v.verbose("Hiding placeholder"),e.css("display","none").css("visibility","")}},set:{fixed:function(){v.verbose("Setting element to fixed position"),u.addClass(t.fixed).css({position:"fixed",top:i.offset+"px",left:"auto",zIndex:i.zIndex}),i.onFixed.call(m)},image:function(e,o){if(u.attr("src",e),i.transition)if(O.fn.transition!==w){if(u.hasClass(t.visible))return void v.debug("Transition already occurred on this image, skipping animation");u.transition(i.transition,i.duration,o)}else u.fadeIn(i.duration,o);else u.show()}},is:{onScreen:function(){return v.get.elementCalculations().onScreen},offScreen:function(){return v.get.elementCalculations().offScreen},visible:function(){return!(!v.cache||!v.cache.element)&&!(0===v.cache.element.width&&0===v.cache.element.offset.top)},verticallyScrollableContext:function(){var e=f.get(0)!==z&&f.css("overflow-y");return"auto"==e||"scroll"==e},horizontallyScrollableContext:function(){var e=f.get(0)!==z&&f.css("overflow-x");return"auto"==e||"scroll"==e}},refresh:function(){v.debug("Refreshing constants (width/height)"),"fixed"==i.type&&v.resetFixed(),v.reset(),v.save.position(),i.checkOnRefresh&&v.checkVisibility(),i.onRefresh.call(m)},resetFixed:function(){v.remove.fixed(),v.remove.occurred()},reset:function(){v.verbose("Resetting all cached values"),O.isPlainObject(v.cache)&&(v.cache.screen={},v.cache.element={})},checkVisibility:function(e){v.verbose("Checking visibility of 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