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// Copyright 2016-2021 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
//
// SPDX-License-Identifier: GPL-3.0-or-later
"use strict";
window._qutebrowser.scroll = (function() {
const funcs = {};
funcs.to_perc = (x, y) => {
let x_px = window.scrollX;
let y_px = window.scrollY;
const width = Math.max(
document.body.scrollWidth,
document.body.offsetWidth,
document.documentElement.scrollWidth,
document.documentElement.offsetWidth
);
const height = Math.max(
document.body.scrollHeight,
document.body.offsetHeight,
document.documentElement.scrollHeight,
document.documentElement.offsetHeight
);
if (x !== undefined) {
x_px = (width - window.innerWidth) / 100 * x;
}
if (y !== undefined) {
y_px = (height - window.innerHeight) / 100 * y;
}
/*
console.log(JSON.stringify({
"x": x,
"window.scrollX": window.scrollX,
"window.innerWidth": window.innerWidth,
"elem.scrollWidth": document.documentElement.scrollWidth,
"x_px": x_px,
"y": y,
"window.scrollY": window.scrollY,
"window.innerHeight": window.innerHeight,
"elem.scrollHeight": document.documentElement.scrollHeight,
"y_px": y_px,
}));
*/
window.scroll(x_px, y_px);
};
funcs.delta_page = (x, y) => {
const dx = window.innerWidth * x;
const dy = window.innerHeight * y;
window.scrollBy(dx, dy);
};
return funcs;
})();
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