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'use strict';
// image width.
const imgW = 400;
// Gallery using bricks.js ////////////////////////////////////////////////////
// mq - the minimum viewport width (String CSS unit: em, px, rem)
// columns - the number of vertical columns
// gutter - the space (in px) between the columns and grid items
const sizes = [
{ columns: 1, gutter: 30 },
{ mq: Math.round((imgW * 2.2) + 40) + "px", columns: 2, gutter: 35 },
{ mq: Math.round((imgW * 3.5) + 50) + "px", columns: 3, gutter: 50 },
{ mq: Math.round((imgW * 4.4) + 50) + "px", columns: 4, gutter: 50 },
];
const instance = Bricks({
container: '#gallery',
packed: 'data-packed',
sizes: sizes
});
instance
.on('pack', () => console.log('ALL grid items packed.'))
.on('update', () => console.log('NEW grid items packed.'))
.on('resize', size => console.log('The grid has be re-packed to accommodate a new BREAKPOINT.', size));
// start it up, when the DOM is ready. note that if images are in the
// grid, you may need to wait for document.readyState === 'complete'.
document.addEventListener('DOMContentLoaded', event => {
instance.resize(true).pack(); // bind resize handler & pack initial items
});
document.addEventListener('readystatechange', event => {
if (event.target.readyState === 'complete') {
instance.pack();
}
});
// Re-packing after loading images ////////////////////////////////////////////
function onImagesLoaded(container, event) {
let images = container.getElementsByTagName("img");
let loaded = images.length;
for (let i = 0; i < images.length; i++) {
if (images[i].complete) {
loaded--;
}
else {
images[i].addEventListener("load", function () {
loaded--;
if (loaded == 0) {
event();
}
});
}
if (loaded == 0) {
event();
}
}
}
const container = document.getElementById("gallery");
onImagesLoaded(container, function () {
instance.pack();
});
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