materio-d9/web/themes/custom/materiotheme/vuejs/components/cardMixins.js

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// https://forum.vuejs.org/t/how-to-use-helper-functions-for-imported-modules-in-vuejs-vue-template/6266/5
export default {
directives: {
lazy: {
bind(img,binding){
// console.log('lazy bind', img, binding);
// show only the first image
if(binding.value === 0){
img.setAttribute('src', img.getAttribute('data-src'))
img.removeAttribute('data-src')
img.classList.remove('lazy')
}
}
},
switcher: {
inserted(el,binding){
// switch images on mousemove
el.addEventListener('mousemove', function(event) {
let figs = this.querySelectorAll('figure')
// console.log('mousemove', this, event, figs.length);
// let len = figs.length
// let w = this.clientWidth;
// let g = w / len;
// let delta = Math.floor(event.layerX / g)
let delta = Math.floor(event.layerX / (this.clientWidth / figs.length))
// console.log('delta', delta);
figs.forEach((fig, index) => {
// console.log(index);
if(index == delta){
// fig.style.display = "block"
fig.classList.remove("hide")
fig.classList.add("show")
}else{
// fig.style.display = "none"
fig.classList.remove("show")
fig.classList.add("hide")
}
})
})
}
}
},
mounted() {
// lazy load images on mouseover
console.log('card mounted', this.$options.name);
// if (this.$options.name ==! 'ModalCard') {
this.$el.addEventListener('mouseover', function(event) {
let imgs = this.querySelectorAll('.images figure img.lazy')
console.log('mousemove', this, imgs);
imgs.forEach((img) => {
// console.log('forEach img',img);
img.setAttribute('src', img.getAttribute('data-src'))
img.removeAttribute('data-src')
img.classList.remove('lazy')
})
}, {once : true})
// }
},
methods: {
activateLazyLoad () {
console.log('card activateLazyLoad', this.$options.name);
this.$el.addEventListener('mousemove', function(event) {
let imgs = this.querySelectorAll('.images figure img.lazy')
console.log('mousemove', this, imgs);
imgs.forEach((img) => {
// console.log('forEach img',img);
img.setAttribute('src', img.getAttribute('data-src'))
img.removeAttribute('data-src')
img.classList.remove('lazy')
})
}, {once : true})
}
// deg2rad (deg) {
// return deg * (Math.PI / 180)
// },
}
}