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cfig-gallery.js
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cfig-gallery.js
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/**
* Filterable investment gallery block
*
* @package cfig
*/
const filterList = document.querySelector(".filter-items-list")
const filterSelect = document.querySelector(".filter-items-select select");
const investments = document.querySelectorAll(".investment-card");
let activeFilter; // Really simple state managment.
/**
* Show or hide investments based on active filter item
*
* @param {string} filterValue Active filter value.
*/
function filterCards(filterValue) {
[...investments].forEach((card) => {
if (filterValue === "") {
card.classList.remove("hidden");
} else {
const cats = card.dataset.investmentCategories;
if (cats.includes(filterValue)) {
card.classList.remove("hidden");
} else {
card.classList.add("hidden");
}
}
});
}
/**
* Set active filter in list or select option.
*
* @param {string} targetFilterValue Filter value to set as active.
*/
function setActiveFilter(targetFilterValue) {
const width = Math.max(document.clientWidth || 0, window.innerWidth || 0);
if (width > 1040) {
// Deactivate existing active filter-item
filterList.querySelector(".active").classList.remove("active");
// Set new active filter-item
const newActive = filterList.querySelector(`[data-filter="${targetFilterValue}"`);
newActive.classList.add("active");
} else {
filterSelect.value = targetFilterValue;
}
}
/**
* Listen for clicks on the large view filter bar.
*
*/
filterList.addEventListener( "click", ( event ) => {
// Get the target filter category.
const filterValue = event.target.getAttribute( "data-filter" );
activeFilter = filterValue;
setActiveFilter(activeFilter);
filterCards(activeFilter);
});
/**
* Listen for change on the small view filter select.
*
*/
filterSelect.addEventListener( "change", ( event ) => {
// Get the target filter category.
const filterValue = event.target.value;
activeFilter = filterValue;
setActiveFilter(activeFilter);
filterCards(activeFilter);
});
/**
* Activate first filter on load.
*
*/
window.onload = () => {
const width = Math.max(document.clientWidth || 0, window.innerWidth || 0);
if (width > 1040) {
const firstFilter = filterList.querySelector(".filter-item");
firstFilter.classList.add("active");
activeFilter = firstFilter.getAttribute("data-filter");
} else {
const firstFilter = filterSelect.querySelector("option");
filterSelect.value = firstFilter.value;
activeFilter = firstFilter.value;
}
filterCards(activeFilter);
}
/**
* Persist active filter on window resize.
*
*/
window.onresize = () => {
setActiveFilter(activeFilter);
}