b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
30 lines
No EOL
4.9 KiB
JavaScript
30 lines
No EOL
4.9 KiB
JavaScript
;;;;;;;(function(exports){'use strict';var debug=false;function log(str){if(!debug){return;}
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console.log('🎶 ',str);}
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var naive=false;var naiveExec=function(block){block();return Promise.resolve();};var directProtectionWindow=360;var Scheduler=function(){this._directTracking=new Map();this._ongoingTransitions=0;this._queuedTransitions=[];this._flushing=false;this._pendingMutations=[];};Scheduler.prototype={attachDirect:function(elm,evtType,block){var tracking=this._directTracking;if(!tracking.get(elm)){tracking.set(elm,{});}
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var tElm=tracking.get(elm);if(!(evtType in tElm)){tElm[evtType]={rafID:null,protectionTimeout:null,blocks:[]};}
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var tEvt=tElm[evtType];if(!tEvt.blocks.length){elm.addEventListener(evtType,this);}
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tEvt.blocks.push(block);},detachDirect:function(elm,evtType,block){var tEvt=this._trackingFor(elm,evtType);if(!tEvt){return;}
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if(tEvt.rafID){window.cancelAnimationFrame(tEvt.rafID);}
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if(tEvt.protectionTimeout){clearTimeout(tEvt.protectionTimeout);tEvt.protectionTimeout=null;this._stopProtectingDirect();}
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var toRemove=tEvt.blocks.indexOf(block);if(toRemove===-1){log('wrong detach block');return;}
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tEvt.blocks.splice(toRemove,1);if(!tEvt.blocks.length){elm.removeEventListener(evtType,this);var tElm=this._directTracking.get(elm);delete tElm[evtType];if(Object.keys(tElm).length===0){this._directTracking.delete(elm);}}},_trackingFor:function(elm,evtType){var tracking=this._directTracking;if(!tracking.get(elm)){log('wrong detach element');return;}
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var tElm=tracking.get(elm);if(!(evtType in tElm)){log('wrong detach event');return;}
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return tElm[evtType];},_shouldProtectDirect:function(){var tracking=this._directTracking;for(var elm of tracking.keys()){var tElm=tracking.get(elm);for(var evtType in tElm){var tEvt=tElm[evtType];if(tEvt.protectionTimeout!==null){return true;}}}
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return false;},_stopProtectingDirect:function(){this._dequeueTransitions();this._flushMutations();if(debug){console.timeEnd('protecting');}},handleEvent:function(evt){var tEvt=this._trackingFor(evt.currentTarget,evt.type);if(!tEvt){return;}
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if(naive){tEvt.blocks.forEach(function(block){block(evt);});return;}
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if(tEvt.protectionTimeout){clearTimeout(tEvt.protectionTimeout);}else{if(debug){console.time('protecting');}}
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tEvt.protectionTimeout=setTimeout((function(){tEvt.protectionTimeout=null;this._stopProtectingDirect();}).bind(this),directProtectionWindow);if(tEvt.rafID){window.cancelAnimationFrame(tEvt.rafID);}
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tEvt.rafID=window.requestAnimationFrame(function(){tEvt.blocks.forEach(function(block){var startDate;if(debug){startDate=performance.now();}
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block(evt);if(debug){var blockDuration=performance.now()-startDate;if(blockDuration>16){log('Direct block took more than a frame ('+
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blockDuration.toString()+'ms)');}}});});},feedback:function(block,elm,evt,timeout){return this._transition(block,true,elm,evt,timeout);},transition:function(block,elm,evt,timeout){return this._transition(block,false,elm,evt,timeout);},_transition:function(block,feedback,elm,evt,timeout){if(naive){return naiveExec(block);}
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timeout=timeout||500;return new Promise((function(resolve,reject){var content=(function(){this._ongoingTransitions++;block();if(!elm||!evt){this._ongoingTransitions--;resolve();return;}
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if(debug){console.time('animating');}
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var finishTimeout;var done=(function(){clearTimeout(finishTimeout);elm.removeEventListener(evt,done);this._ongoingTransitions--;if(debug){console.timeEnd('animating');}
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if(this._ongoingTransitions===0){setTimeout(this._flushMutations.bind(this));}
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resolve();}).bind(this);elm.addEventListener(evt,done);finishTimeout=setTimeout(function(){done();log('Transition block saved by a timeout of '+timeout+' ~ '+
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elm.style.transition);},timeout);}).bind(this);if(this._flushing||(this._shouldProtectDirect()&&!feedback)){this._queuedTransitions.push(content);}else{content();}}).bind(this));},_dequeueTransitions:function(){if(this._queuedTransitions.length===0){return;}
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if(this._flushing||this._shouldProtectDirect()){return;}
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var transitions=this._queuedTransitions;transitions.forEach(function(transition){transition();});this._queuedTransitions=[];},mutation:function(block){if(naive){return naiveExec(block);}
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return new Promise((function(resolve,reject){if(this._shouldProtectDirect()||this._ongoingTransitions>0){this._pendingMutations.push({block:block,resolve:resolve});}else{Promise.resolve().then(block).then(resolve);}}).bind(this));},_flushMutations:function(){if(this._pendingMutations.length===0){return;}
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if(this._shouldProtectDirect()||this._ongoingTransitions>0){return;}
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this._flushing=true;var fulfilments=this._pendingMutations.map(function(obj){return obj.resolve;});var mutations=this._pendingMutations;mutations.forEach(function(mutation){mutation.block();});this._pendingMutations=[];this._flushing=false;fulfilments.forEach(function(resolve){resolve();});this._dequeueTransitions();}};exports.DomScheduler=Scheduler;if(!exports.scheduler||typeof exports.scheduler.mutation!=='function')Object.defineProperty(exports,'scheduler',{value:new Scheduler(),configurable:true,writable:true});})(window); |