var asyncImgClasses = { // Class name of element that holds the images asyncImgHolder: 'async-image-holder', // Class for s appended to holder element asyncImg: 'async-image', // Low res image class (loaded first) lowResClass : 'low-res', // Appended to new elements after they're loaded loadedClass : 'loaded', }; // data-* attribute keys var asyncImgDataKeys = { // Full res dFullRes : 'data-async-src', // Low res dLowRes : 'data-async-src-low', // Gradient start // ex. rgba(255, 255, 255, .6) dGradient : 'data-gradient', // Gradient end // ex. rgba(255, 255, 255, .6) dGradientTo : 'data-gradient-to', // Class string appended to each image // ex: 'class-a class-b' dImgClass : 'data-img-class', // Image alt dImgAlt : 'data-alt', }; // Function loads an image *after* returning it's element function loadAsyncImage(src, lowRes, classString, gradient, gradientTo, imgAlt){ var imgEl = new Image(); // Blank gif keeps img element transparent imgEl.src = 'data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII='; // Add image class strings imgEl.className = asyncImgClasses.asyncImg + ' ' + (classString || ''); // Appends low-res class(if needed) if(lowRes) imgEl.className += (' ' + asyncImgClasses.lowResClass); // Set alt imgEl.alt = imgAlt || 'Asynchronous image'; // This is a loading element(never appended to the document) imgLoader = new Image(); // Prepare for when image is loaded imgLoader.onload = function(){ var linearGradient = ''; // Gradient defaults to the first value being used both from/to if(gradient) linearGradient = 'linear-gradient(' + gradient + ',' + (gradientTo || gradient) +'),'; // Append real src as background to image element that is returned imgEl.style.backgroundImage = linearGradient + "url('" + src + "')"; imgEl.className += (' ' + asyncImgClasses.loadedClass); } // Load image imgLoader.src = src; return imgEl; } // Automatically find and load async images function findAsyncImages(){ var asyncImageHolders = document.getElementsByClassName(asyncImgClasses.asyncImgHolder); for(var q = 0; q < asyncImageHolders.length; q++){ var asyncWrap = asyncImageHolders[q]; // Get img data var fullResSrc = asyncWrap.getAttribute(asyncImgDataKeys.dFullRes); var lowResSrc = asyncWrap.getAttribute(asyncImgDataKeys.dLowRes); var gradient = asyncWrap.getAttribute(asyncImgDataKeys.dGradient); var gradientTo = asyncWrap.getAttribute(asyncImgDataKeys.dGradientTo); var imgClass = asyncWrap.getAttribute(asyncImgDataKeys.dImgClass); var imgAlt = asyncWrap.getAttribute(asyncImgDataKeys.dImgAlt); // Remove current background image from wrap if(lowResSrc || fullResSrc) asyncWrap.style.backgroundImage = 'none'; // Low res if(lowResSrc) asyncWrap.appendChild( loadAsyncImage(lowResSrc, true, imgClass, gradient, gradientTo, imgAlt) ); // Full res if(fullResSrc) asyncWrap.appendChild( loadAsyncImage(fullResSrc, false, imgClass, gradient, gradientTo, imgAlt) ); } } window.addEventListener('DOMContentLoaded', function(){ console.log('Searching for images to load in elements with class "' + asyncImgClasses.asyncImgHolder + '"') findAsyncImages(); }); // Various meta keys const lightboxKeys = { defaultLightboxLabel: 'swgl-default-lightbox', dataImgSrc: 'data-swgl-src', dataImgAlt: 'data-swgl-alt', dataLightboxLabel: 'data-swgl-label', }; // Flags for preloading images on either side of image selected const preload = { 'previous': true, 'next': true, }; const lightboxStyles = { ids: { overlay: 'swgl-overlay', digitizer: 'swgl-digitizer', slideWrapper: 'swgl-slide-wrapper', controls: 'swgl-controls', }, classes: { // Overlay active overlayActive: 'active', digitizer: 'swgl-digitizer', // Slide classes slide: 'swgl-slide', slideLoaded: 'loaded', deleteSlide: 'swgl-delete', activeSlide: 'swgl-active', leftSlide: 'swgl-left', rightSlide: 'swgl-right', centerSlide: 'swgl-center', slideImg: 'swgl-slide-img', slideImgLoaded: 'loaded', slidePortrait: 'portrait', slideLandscape: 'landscape', slideCaption: 'swgl-caption', loadingSpinner: 'swgl-loading-spinner' } }; // Delays need to match css transition times (ms) const animationDelays = { openOverlay: 250, closeOverlay: 250, slideTransition: 500, }; let lightboxData = {}; const setAllLightboxData = (data)=>{ lightboxData = data; } // Deep copies object data and returns that const getLightboxData = (label)=>{ return JSON.parse( JSON.stringify(lightboxData[label]) ); } let currentLightboxData = {}; const getCurrentLightboxData = ()=>( JSON.parse( JSON.stringify(currentLightboxData) ) ); const setCurrentLightboxData = (data)=>{ currentLightboxData = data; } const clearCurrentLightboxData = ()=>{ currentLightboxData = {}; } const getSrcFromCurrentData = (imageIndex)=>( currentLightboxData.images[imageIndex].src ); const getImageFromCurrentData = (imageIndex)=>( getImageData(currentLightboxData, imageIndex) ); let currentIndex = 0; const getCurrentIndex = ()=>( currentIndex ); const setCurrentIndex = (newIndex)=>{ currentIndex = newIndex; }; const clearCurrentIndex = ()=>{ currentIndex = 0; }; const createControls = ()=>{ const controlsEl = document.createElement('div'); controlsEl.id = lightboxStyles.ids.controls; // Digitizer const digitizer = document.createElement('div'); digitizer.id = lightboxStyles.ids.digitizer; digitizer.className = lightboxStyles.classes.digitizer; digitizer.addEventListener('click', closeLightbox); controlsEl.appendChild(digitizer); // Close btn const closeBtn = document.createElement('button'); closeBtn.innerHTML = '×'; closeBtn.id = 'swgl-close-btn'; closeBtn.className = 'swgl-btn'; closeBtn.addEventListener('click', closeLightbox); controlsEl.appendChild(closeBtn); // Prev btn const prevBtn = document.createElement('button'); prevBtn.innerHTML = '❮'; prevBtn.id = 'swgl-prev-btn'; prevBtn.className = 'swgl-btn swgl-nav-btn'; prevBtn.addEventListener('click', prevSlide); controlsEl.appendChild(prevBtn); // Next btn const nextBtn = document.createElement('button'); nextBtn.innerHTML = '❯'; nextBtn.id = 'swgl-next-btn'; nextBtn.className = 'swgl-btn swgl-nav-btn'; nextBtn.addEventListener('click', nextSlide); controlsEl.appendChild(nextBtn); return controlsEl; }; const createFramework = ()=>{ const overlay = createOverlay(); const slideWrapper = createSlideWrapper(); const controls = createControls(); overlay.appendChild(slideWrapper); overlay.appendChild(controls); return overlay; }; const createLoadingSpinner = ()=>{ const newSpinner = document.createElement('img'); newSpinner.className = lightboxStyles.classes.loadingSpinner; newSpinner.alt = 'Loading image, please wait'; newSpinner.src = 'data:image/svg+xml,' + loadingSvg; return newSpinner; }; const createOverlay = ()=>{ const overlay = document.createElement('div'); overlay.id = lightboxStyles.ids.overlay; return overlay; }; const createSlideWrapper = ()=>{ const slideWrapper = document.createElement('div'); slideWrapper.id = lightboxStyles.ids.slideWrapper; return slideWrapper; }; // This blank gif is also used in async-images, but I'm putting it here to keep them modular const blankSrc = 'data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII='; const createSlide = (src, alt)=>{ // Create elements const newSlide = document.createElement('div'); newSlide.className = lightboxStyles.classes.slide; // Spinner const spinnerEl = createLoadingSpinner(); // Img const newImg = new Image(); newImg.className = (' ' + lightboxStyles.classes.slideImg); // Starts img element transparent if loading newImg.src = blankSrc; // Background loader image imgLoader = new Image(); // Prepare image loading imgLoader.onload = function(){ // Remove spinner spinnerEl.parentNode.removeChild(spinnerEl); // Switch real image to src newImg.src = src; // Fade in img again with real src newImg.className += (' ' + lightboxStyles.classes.slideImgLoaded); const isLandscape = (imgLoader.width >= imgLoader.height); const imgTypeClass = isLandscape ? lightboxStyles.classes.slideLandscape : lightboxStyles.classes.slidePortrait; newSlide.className += (' ' + lightboxStyles.classes.slideLoaded + ' ' + imgTypeClass); } // Load image imgLoader.src = src; newSlide.appendChild(newImg); newSlide.appendChild(spinnerEl); // Add caption const newCaption = document.createElement('div'); newCaption.className = lightboxStyles.classes.slideCaption; newCaption.innerHTML = (alt || 'Lightbox image'); newSlide.appendChild(newCaption); return newSlide; }; const selectSlide = (src, dir, alt)=>{ // Declare vars for slide direction let formerActiveDir; let newSlideDirClass; // Slide from left if(dir < 0) { formerActiveDir = lightboxStyles.classes.rightSlide; newSlideDirClass = lightboxStyles.classes.leftSlide; } // Slide from right else if(dir > 0) { formerActiveDir = lightboxStyles.classes.leftSlide; newSlideDirClass = lightboxStyles.classes.rightSlide; } // Center slide else { // Slide any active slides to the left formerActiveDir = lightboxStyles.classes.centerSlide; // Make slide invisible to start newSlideDirClass = lightboxStyles.classes.centerSlide; } // Remove any remaining slides deleteActiveSlides(formerActiveDir); // Set new slide class to active const newSlide = createSlide(src, alt); newSlide.className += (' ' + newSlideDirClass); // Find slide wrapper const slideWrapper = document.getElementById(lightboxStyles.ids.slideWrapper); // Add new slide slideWrapper.appendChild(newSlide); // Put in setTimeout to wait for DOM update setTimeout(() => { newSlide.className =( newSlide.className.replace(newSlideDirClass, '') + ' ' + lightboxStyles.classes.activeSlide); }, 0); }; // Generic navigation function const genericSlide = (indexDirection)=>{ // Get current data const currentData = getCurrentLightboxData(); // Get current inds const currentIndex = getCurrentIndex(); // Build next index const newIndex = verifyIndex(currentData, currentIndex, indexDirection); // Update with new index setCurrentIndex(newIndex); // Get image data from new index const img = getImageFromCurrentData(newIndex); // Render new slide selectSlide( img.src, (newIndex - currentIndex), img.alt ); // Preload next images checkImagePreload(currentData, newIndex); }; const openLightbox = (srcIndex, lightboxLabel) => { // Retrieve data const lightboxData = getLightboxData((lightboxLabel || lightboxKeys.defaultLightboxLabel)); // Set which data to use setCurrentLightboxData(lightboxData); setCurrentIndex(srcIndex) // Create new slide const img = getImageFromCurrentData(srcIndex); selectSlide(img.src, 0, img.alt); // Get overlay let overlay = getOverlay(); // Add active class overlay.className += (' ' + lightboxStyles.classes.overlayActive); }; const closeLightbox = () => { // Clear active data clearCurrentLightboxData(); clearCurrentIndex(); deleteActiveSlides(); // Hide overlay const overlay = getOverlay(); overlay.className = overlay.className.replace(new RegExp(lightboxStyles.classes.overlayActive, 'g'), '').trim(); }; const prevSlide = (e) => { e.preventDefault(); genericSlide(-1); }; const nextSlide = (e) => { e.preventDefault(); genericSlide(1); }; // Preloads images on either side of current const checkImagePreload = (currentData, currentIndex) => { if(preload.previous) { const prevIndex = verifyIndex(currentData, (currentIndex - 1) ); const img = getImageData(currentData, prevIndex); preloadImage(img.src); } if(preload.next) { const nextIndex = verifyIndex(currentData, (currentIndex + 1)); const img = getImageData(currentData, nextIndex); preloadImage(img.src); } } // Removes all slides active before navigation const deleteActiveSlides = (dir)=>{ const slideWrapper = getSlideWrapper(); const dirClass = (dir || lightboxStyles.classes.centerSlide); // Get all active slides const currentSlides = slideWrapper.getElementsByClassName(lightboxStyles.classes.activeSlide); for(let q = 0; q < currentSlides.length; q++){ const oldSlide = currentSlides[q]; // Clear activeClass oldSlide.className = currentSlides[q].className.replace(lightboxStyles.classes.activeSlide, dirClass); // Delete old slide setTimeout(()=>{ if(oldSlide && oldSlide.parentNode) oldSlide.parentNode.removeChild(oldSlide); }, animationDelays.slideTransition) } } // Retrieval function for image data const getImageData = (data, index) => { return data.images[index]; }; // Retrieval function for overlay element const getOverlay = () => { return document.getElementById(lightboxStyles.ids.overlay); }; // Retrieval function for slide wrapper const getSlideWrapper = () => { return document.getElementById(lightboxStyles.ids.slideWrapper); }; // Preloads without showing image const preloadImage = (src) => { const img = new Image(); img.alt = 'Preloading image'; img.src = src; }; // Ensures image index loops around image count const verifyIndex = (currentData, currentIndex, indexDirection = 0) => { let attemptedIndex = (currentIndex + indexDirection); let newIndex; if(attemptedIndex >= currentData.images.length) newIndex = 0; else if(attemptedIndex < 0) newIndex = (currentData.images.length - 1); else newIndex = attemptedIndex; return newIndex; }; const genLightboxData = (label)=>({ label, images: [] }); const genLightboxImage = (src, imgAlt)=>({ src, alt: (imgAlt || 'Lightbox image') }); const initializeFramework = ()=>{ const swglLightbox = createFramework(); document.getElementsByTagName('body')[0].appendChild(swglLightbox); }; const intializeSlides = ()=>{ if(!lightboxKeys.dataImgSrc) throw new Error("lightboxKeys.dataImgSrc var empty"); if(!lightboxKeys.dataLightboxLabel) throw new Error("lightboxKeys.dataLightboxLabel var empty"); if(!lightboxKeys.dataImgAlt) throw new Error('lightboxKeys.dataImgAlt empty'); // Search for lightbox images const imgSrcEls = document.querySelectorAll('[' + lightboxKeys.dataImgSrc + ']'); // holds final lightbox data const lightboxData = {}; for(let q = 0; q < imgSrcEls.length; q++){ const imgEl = imgSrcEls[q]; const imgSrc = imgEl.getAttribute(lightboxKeys.dataImgSrc); const imgAlt = imgEl.getAttribute(lightboxKeys.dataImgAlt); // Uses element's lightbox label or default const lightboxLabel = imgEl.getAttribute(lightboxKeys.dataLightboxLabel) || lightboxKeys.defaultLightboxLabel; const newLightboxImage = genLightboxImage(imgSrc, imgAlt); // Ensure data is prepped if(!lightboxData[lightboxLabel]) lightboxData[lightboxLabel] = genLightboxData(lightboxLabel); // Push new image lightboxData[lightboxLabel].images.push( newLightboxImage ); const imgIndex = (lightboxData[lightboxLabel].images.length - 1); imgEl.addEventListener('click', ()=>{ openLightbox(imgIndex, lightboxLabel) }); } setAllLightboxData(lightboxData); } window.addEventListener('DOMContentLoaded', ()=>{ // Prepare lightbox HTML initializeFramework(); // Find all slides and initialize lightbox data intializeSlides(); }); // Unfortunately this adds over a kb to the code, // the upside being it doesn't take another request const loadingSvg = '%3Csvg%20viewBox%3D%220%200%20265%20273%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20fill-rule%3D%22evenodd%22%20clip-rule%3D%22evenodd%22%20stroke-linejoin%3D%22round%22%20stroke-miterlimit%3D%221.414%22%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-21.676%20-2.418)%20scale(1.1417)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-8.379%2033.813)%20scale(1.29394)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-21.726%2085.436)%20scale(1.44612)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-65.864%20137.056)%20scale(1.59837)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-136.654%20173.288)%20scale(1.7506)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-222.825%20182.865)%20scale(1.90279)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-309.011%20161.662)%20scale(2.05505)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-379.808%20113.803)%20scale(2.20732)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-423.925%2050.56)%20scale(2.35946)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-437.292%20-12.69)%20scale(2.51175)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-423.993%20-60.546)%20scale(2.66398)%22%2F%3E%3Ccircle%20cx%3D%22188.828%22%20cy%3D%2238.185%22%20r%3D%229.158%22%20transform%3D%22translate(-395.289%20-81.746)%20scale(2.81613)%22%2F%3E%3C%2Fsvg%3E'; If you are using the jQuery library, then don't forget to wrap your code inside jQuery.ready() as follows: jQuery(document).ready(function( $ ){ // Your code in here }); -- If you want to link a JavaScript file that resides on another server (similar to ), then please use the "Add HTML Code" page, as this is a HTML code that links a JavaScript file. End of comment */

Address

CNC Lighting,
Shiv Shankar Industrial Estate No.1,
Bldg No.3, Gala No.2,
Near Remi Electrotechnics Ltd,
Behind Burma Shell Petrol Pump,
Naikpada, Waliv, Vasai (East)- 401208, Dist- Palghar, Maharashtra, India.

Email

sales@cnclighting.in

Phone

9152008739 / 40 / 41
97690 53357

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Sep 21, 2021
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