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import Swiper from 'https://unpkg.com/swiper@11.1.15/swiper.mjs?module'
// import { Navigation, Pagination } from 'swiper/modules';
// using Swiper as global
// TODO: load Swiper via requireJS async mode
const slidetray = (setup) => {
let factory = {
setup: { /** @object : slidetray paramaters */ },
features: [],
defaults: {
selector: '.slidetray',
source_url: '',
effect: 'flip',
theme: 'light',
navigation: true,
pagination: 'classsic',
keyboard: false,
touch: true
},
presentation: {
html: '',
css: '',
initer: { /** @object : swiper paremetres */ }
},
swiper: null,
init: function(json) {
for (let prop in this.defaults) {
if (!json.hasOwnProperty(prop)) json[prop] = this.defaults[prop];
}
this.setup = json;
this.presentation.initer = this.define_engine_args(json);
return this;
},
define_engine_args: function(json) {
let args = {
spaceBetween: 30,
}
if (json.effect != 'none') {
args.effect = json.effect;
}
if (json.navigation) {
this.features.push('<div class="swiper-button-next"></div>');
this.features.push('<div class="swiper-button-prev"></div>');
args.navigation = {
nextEl: '.swiper-button-next',
prevEl: '.swiper-button-prev',
}
}
if (json.pagination != 'none') {
this.features.push('<div class="swiper-pagination"></div>');
let pagi = { el: ".swiper-pagination" };
switch (json.pagination) {
case 'dynamic': pagi.dynamicBullets = true; break;
case 'progress': pagi.type = 'progressbar'; break;
case 'fraction': pagi.type = 'fraction'; break;
default: pagi.clickable = true
}
args.pagination = pagi;
}
return args;
},
prepare: function() { // prepare slides and css
let html = [];
let css = [];
if (this.setup.hasOwnProperty('css')) {
css.push(this.setup.css);
}
this.setup.slides.forEach( (slide, i) => {
let slideHtml = `
<div class="swiper-slide" data-id="${i}">
<img src="${slide.image}" />
`;
if (slide.poi && Array.isArray(slide.poi)) {
let slideClass = `f-${i}-${j}`;
slide.poi.forEach( (poi, j) => {
if (poi.link) {
slideHtml += `<div class="${slideClass}">
<a href="${poi.link}">${poi.text}</a>
</div>`;
} else {
slideHtml += `<div class="f-${i}-${j}">
${poi.text}
</div>`;
}
if (poi.style) {
poi.style.forEach( rs => { // ruleset
css.push(`.${slideClass} ${rs}`);
});
}
})
}
slideHtml += '</div>';
html.push(slideHtml);
});
this.presentation.html = html.join('\n');
this.presentation.css = css.join('\n');
return this;
},
apply: function() {
if (this.setup.title) document.title = this.setup.title; // set document title
// apply css
let styleSheet = document.createElement('style')
styleSheet.textContent = this.presentation.css;
document.head.appendChild(styleSheet);
// append feature elemets
if (this.features.length) {
this.features.forEach( fea => {
document.querySelector(this.setup.selector).insertAdjacentHTML('beforeend', fea);
})
}
// append slides
document.querySelector(`${setup.selector} .swiper-wrapper`).innerHTML = this.presentation.html;
return this;
},
show: function() {
SwiperCore.use([Navigation, Pagination, Scrollbar]);
var swp = new Swiper(this.setup.selector, this.presentation.initer);
this.swiper = swp;
return this;
}
}
return factory.init(setup);
}
export default slidetray;
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