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(function () {
let gamepads = [];
window.addEventListener('gamepadconnected', (e) => {
const index = e.gamepad.index;
let isWaiting = false;
gamepads[index] = setInterval(async () => {
if (!opts.js_modal_lightbox_gamepad || isWaiting) return;
const gamepad = navigator.getGamepads()[index];
const xValue = gamepad.axes[0];
if (xValue <= -0.3) {
modalPrevImage(e);
isWaiting = true;
} else if (xValue >= 0.3) {
modalNextImage(e);
isWaiting = true;
}
if (isWaiting) {
await sleepUntil(() => {
const xValue = navigator.getGamepads()[index].axes[0];
if (xValue < 0.3 && xValue > -0.3) {
return true;
}
}, opts.js_modal_lightbox_gamepad_repeat);
isWaiting = false;
}
}, 10);
});
window.addEventListener('gamepaddisconnected', (e) => {
clearInterval(gamepads[e.gamepad.index]);
});
// Primarily for vr controller type pointer devices.
// I use the wheel event because there's currently no way to do it properly with web xr.
let isScrolling = false;
window.addEventListener('wheel', (e) => {
if (!opts.js_modal_lightbox_gamepad || isScrolling) return;
isScrolling = true;
if (e.deltaX <= -0.6) {
modalPrevImage(e);
} else if (e.deltaX >= 0.6) {
modalNextImage(e);
}
setTimeout(() => {
isScrolling = false;
}, opts.js_modal_lightbox_gamepad_repeat);
});
})();
function sleepUntil(f, timeout) {
return new Promise((resolve) => {
const timeStart = new Date();
const wait = setInterval(function () {
if (f() || new Date() - timeStart > timeout) {
clearInterval(wait);
resolve();
}
}, 20);
});
}
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