FFNM/dist/ffnm.min.js
2020-12-22 11:00:48 +01:00

3 lines
4.1 KiB
JavaScript

const EVENTS=["is-click","is-scroll-up","is-scroll-down","is-scroll-top","is-hover","is-visible","is-not-visible"],FUNCTION_TREE={class:["add","remove","toggle"]};let elementsValidates=[],lastScrollTop=void 0;function validateSyntax(){return elementsValidates=[],EVENTS.map(e=>[...document.querySelectorAll(`[${e}]`)].map(t=>{let s=Object.keys(FUNCTION_TREE).map(s=>FUNCTION_TREE[s].map(a=>RegExp(`^${s}:${a}\\('.+'(, ?'[.#i\\w][_-\\w0-9]+')?\\)$`).test(t.getAttribute(e))).some(e=>e)).every(e=>e);return s?elementsValidates.push(t):(console.error("FFNM: Bad syntax"),console.error(t)),s}).every(e=>e)).every(e=>e)}function splitParams(e,t){let s=e.getAttribute(t),a=RegExp("^(\\w+):").exec(s)[1],l=RegExp(":(\\w+)\\(").exec(s)[1],i=RegExp("\\('(\\w[_-\\w0-9]+)',?").exec(s)[1],c=RegExp(", ?'([.#i\\w][_-\\w0-9]+)'\\)");return{functionParent:a,functionChild:l,value:i,target:null!==c.exec(s)?c.exec(s)[1]:void 0}}function getElementsValidatesByEvent(e){return[...elementsValidates].filter(t=>t.hasAttribute(e))}function addEventClick(){return getElementsValidatesByEvent("is-click").forEach(e=>{let t=splitParams(e,"is-click");switch(t.functionParent){case"class":[...document.querySelectorAll(t.target)].concat(void 0===t.target?e:void 0).forEach(s=>{void 0!==s&&e.addEventListener("click",()=>{switch(t.functionChild){case"add":s.classList.add(t.value);break;case"remove":s.classList.remove(t.value);break;case"toggle":s.classList.toggle(t.value)}})})}})}function addEventScroll(){let e=getElementsValidatesByEvent("is-scroll-down"),t=getElementsValidatesByEvent("is-scroll-up"),s=getElementsValidatesByEvent("is-scroll-top");window.addEventListener("scroll",()=>{let a=window.pageYOffset||document.documentElement.scrollTop;e.forEach(e=>{if(a>lastScrollTop){let t=splitParams(e,"is-scroll-down");switch(t.functionParent){case"class":switch(t.functionChild){case"add":e.classList.add(t.value);break;case"remove":e.classList.remove(t.value)}}}}),t.forEach(e=>{if(a<=lastScrollTop){let t=splitParams(e,"is-scroll-up");switch(t.functionParent){case"class":switch(t.functionChild){case"add":e.classList.add(t.value);break;case"remove":e.classList.remove(t.value)}}}}),lastScrollTop=a<=0?0:a,s.forEach(e=>{let t=splitParams(e,"is-scroll-top");if(a<=0)switch(t.functionParent){case"class":switch(t.functionChild){case"add":e.classList.add(t.value);break;case"remove":e.classList.remove(t.value)}}else switch(t.functionParent){case"class":switch(t.functionChild){case"add":e.classList.remove(t.value);break;case"remove":e.classList.add(t.value)}}})},!1)}function addEventHover(){return getElementsValidatesByEvent("is-hover").forEach(e=>{let t=splitParams(e,"is-hover");switch(t.functionParent){case"class":[...document.querySelectorAll(t.target)].concat(void 0===t.target?e:void 0).forEach(s=>{if(void 0!==s)switch(t.functionChild){case"add":e.addEventListener("mouseenter",()=>{s.classList.add(t.value)}),e.addEventListener("mouseout",()=>{s.classList.remove(t.value)});break;case"remove":e.addEventListener("mouseenter",()=>{s.classList.remove(t.value)}),e.addEventListener("mouseout",()=>{s.classList.add(t.value)});break;case"toggle":e.addEventListener("mouseenter",()=>{s.classList.toggle(t.value)}),e.addEventListener("mouseout",()=>{s.classList.toggle(t.value)})}})}})}function addEventVisible(){let e=getElementsValidatesByEvent("is-visible"),t=getElementsValidatesByEvent("is-not-visible");const s=new IntersectionObserver(e=>{e.forEach(e=>{let t=e.target;if(e.isIntersecting){let e=splitParams(t,"is-visible");switch(e.functionParent){case"class":switch(e.functionChild){case"add":t.classList.add(e.value);break;case"remove":t.classList.remove(e.value)}}}})});e.forEach(e=>{s.observe(e)});const a=new IntersectionObserver(e=>{e.forEach(e=>{let t=e.target;if(!e.isIntersecting){let e=splitParams(t,"is-not-visible");switch(e.functionParent){case"class":switch(e.functionChild){case"add":t.classList.add(e.value);break;case"remove":t.classList.remove(e.value)}}}})});t.forEach(e=>{a.observe(e)})}document.addEventListener("DOMContentLoaded",()=>{validateSyntax(),addEventClick(),addEventScroll(),addEventHover(),addEventVisible()});
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