PCv5/app/static/scripts/gallery.js

91 lines
3.3 KiB
JavaScript

document.querySelectorAll(".gallery").forEach(item => {
// Switch to gallery-js stylesheet
item.className = "gallery-js";
// Create the spotlight container
let spot = document.createElement('div');
spot.className = "gallery-spot";
spot.style.display = "none";
spot.appendChild(item.firstElementChild.cloneNode(true));
item.after(spot);
// Add some logic
// item.addEventListener("click", function(e) {
// console.log(e.target);
// console.log(e.currentTarget);
// // Select the clicked media
// Array.from(item.children).forEach(child => {
// child.classList.remove('selected');
// });
// e.target.classList.add('selected');
//
// // Display the current
// e.currentTarget.nextElementSibling.querySelector('div').innerHTML = e.target.outerHTML;
// });
});
document.querySelectorAll(".gallery-js > video").forEach(item => {
// Remove the video controls
item.removeAttribute('controls');
// Generate a thumbnail
item.addEventListener('loadedmetadata', e => {
const item = e.target;
item.currentTime = item.duration * 0.5; // 10% of the video
item.addEventListener('loadeddata', e => {
const v = e.target;
const canvas = document.createElement("canvas");
canvas.width = v.videoWidth;
canvas.height = v.videoHeight;
// draw the video frame to canvas
const ctx = canvas.getContext("2d");
// ctx.drawImage(v, 0, 0, canvas.width, canvas.height);
// draw the play button
// icon = new Path2D("M10,16.5V7.5L16,12M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2Z");
icon = new Path2D("M10 10 h 80 v 80 h -80 Z");
console.log(icon);
ctx.fill(icon);
// return the canvas image as a blob
ctx.canvas.toBlob(
blob => {
console.log(blob);
v.setAttribute('poster', URL.createObjectURL(blob));
},
"image/png",
0.75 /* quality */
);
});
});
});
document.querySelectorAll(".gallery-js > *").forEach(item => {
// Add some dynamic behavior
item.addEventListener("click", function(e) {
// Manage selected media
if(e.target.classList.contains('selected')) {
e.target.classList.remove('selected');
} else {
e.target.classList.add('selected');
}
Array.from(e.target.parentElement.children).forEach(el => {
if(el != e.target) el.classList.remove('selected');
});
// Change content of spotlight
let spot = e.target.parentElement.nextElementSibling;
spot.replaceChild(e.target.cloneNode(true), spot.firstElementChild);
spot.firstElementChild.setAttribute('controls', "");
// Open spotlight media in a new tab
spot.firstElementChild.addEventListener("click", function(e) {
window.open(spot.firstElementChild.src, "_blank");
});
// Display the spotlight
if(e.target.classList.contains('selected')) {
spot.style.display = "flex";
} else {
spot.style.display = "none";
}
});
});