140 lines
4.0 KiB
JavaScript
140 lines
4.0 KiB
JavaScript
// A full size 'lightbox' preview modal shown when left clicking on gallery previews
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function closeModal() {
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gradioApp().getElementById("lightboxModal").style.display = "none";
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}
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function showModal(event) {
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var source = event.target || event.srcElement;
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gradioApp().getElementById("modalImage").src = source.src
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var lb = gradioApp().getElementById("lightboxModal")
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lb.style.display = "block";
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lb.focus()
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event.stopPropagation()
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}
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function negmod(n, m) {
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return ((n % m) + m) % m;
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}
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function modalImageSwitch(offset){
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var galleryButtons = gradioApp().querySelectorAll(".gallery-item.transition-all")
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if(galleryButtons.length>1){
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var currentButton = gradioApp().querySelector(".gallery-item.transition-all.\\!ring-2")
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var result = -1
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galleryButtons.forEach(function(v, i){ if(v==currentButton) { result = i } })
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if(result != -1){
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nextButton = galleryButtons[negmod((result+offset),galleryButtons.length)]
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nextButton.click()
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gradioApp().getElementById("modalImage").src = nextButton.children[0].src
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setTimeout( function(){gradioApp().getElementById("lightboxModal").focus()},10)
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}
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}
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}
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function modalNextImage(event){
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modalImageSwitch(1)
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event.stopPropagation()
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}
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function modalPrevImage(event){
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modalImageSwitch(-1)
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event.stopPropagation()
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}
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function modalKeyHandler(event){
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switch (event.key) {
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case "ArrowLeft":
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modalPrevImage(event)
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break;
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case "ArrowRight":
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modalNextImage(event)
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break;
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case "Escape":
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closeModal();
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break;
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}
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}
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function showGalleryImage(){
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setTimeout(function() {
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fullImg_preview = gradioApp().querySelectorAll('img.w-full.object-contain')
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if(fullImg_preview != null){
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fullImg_preview.forEach(function function_name(e) {
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if(e && e.parentElement.tagName == 'DIV'){
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e.style.cursor='pointer'
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e.addEventListener('click', function (evt) {
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if(!opts.js_modal_lightbox) return;
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showModal(evt)
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},true);
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}
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});
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}
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}, 100);
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}
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function galleryImageHandler(e){
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if(e && e.parentElement.tagName == 'BUTTON'){
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e.onclick = showGalleryImage;
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}
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}
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onUiUpdate(function(){
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fullImg_preview = gradioApp().querySelectorAll('img.w-full')
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if(fullImg_preview != null){
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fullImg_preview.forEach(galleryImageHandler);
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}
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})
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document.addEventListener("DOMContentLoaded", function() {
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const modalFragment = document.createDocumentFragment();
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const modal = document.createElement('div')
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modal.onclick = closeModal;
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const modalClose = document.createElement('span')
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modalClose.className = 'modalClose cursor';
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modalClose.innerHTML = '×'
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modalClose.onclick = closeModal;
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modal.id = "lightboxModal";
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modal.tabIndex=0
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modal.addEventListener('keydown', modalKeyHandler, true)
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modal.appendChild(modalClose)
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const modalImage = document.createElement('img')
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modalImage.id = 'modalImage';
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modalImage.onclick = closeModal;
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modalImage.tabIndex=0
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modalImage.addEventListener('keydown', modalKeyHandler, true)
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modal.appendChild(modalImage)
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const modalPrev = document.createElement('a')
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modalPrev.className = 'modalPrev';
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modalPrev.innerHTML = '❮'
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modalPrev.tabIndex=0
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modalPrev.addEventListener('click',modalPrevImage,true);
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modalPrev.addEventListener('keydown', modalKeyHandler, true)
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modal.appendChild(modalPrev)
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const modalNext = document.createElement('a')
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modalNext.className = 'modalNext';
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modalNext.innerHTML = '❯'
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modalNext.tabIndex=0
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modalNext.addEventListener('click',modalNextImage,true);
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modalNext.addEventListener('keydown', modalKeyHandler, true)
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modal.appendChild(modalNext)
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gradioApp().getRootNode().appendChild(modal)
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document.body.appendChild(modalFragment);
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});
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