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scrollingOneOffs.uc.js
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scrollingOneOffs.uc.js
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// ==UserScript==
// @name Scrolling Search One-offs
// @version 1.3.4
// @author aminomancer
// @homepageURL https://github.com/aminomancer
// @long-description
// @description
/*
This is for my own personal stylesheet, which moves the one-off search engine buttons to the right side of the url bar when the user is typing into the url bar. The script allows the search one-offs box to be scrolled with mousewheel up/down.
It also adds a minor improvement to the one-offs in the searchbar results popup: if the one-offs are overflowing and you switch to a search engine that is overflown off the popup, it will automatically scroll to the selected one-off button, just like the urlbar one-offs does with [oneClickOneOffSearchButtons.uc.js][].
[oneClickOneOffSearchButtons.uc.js]: https://github.com/aminomancer/uc.css.js/blob/master/JS/oneClickOneOffSearchButtons.uc.js
*/
// @downloadURL https://cdn.jsdelivr.net/gh/aminomancer/uc.css.js@master/JS/scrollingOneOffs.uc.js
// @updateURL https://cdn.jsdelivr.net/gh/aminomancer/uc.css.js@master/JS/scrollingOneOffs.uc.js
// @license This Source Code Form is subject to the terms of the Creative Commons Attribution-NonCommercial-ShareAlike International License, v. 4.0. If a copy of the CC BY-NC-SA 4.0 was not distributed with this file, You can obtain one at http://creativecommons.org/licenses/by-nc-sa/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
// ==/UserScript==
(() => {
function rectX(el) {
return el.getBoundingClientRect().x;
}
function parseWidth(el) {
let style = window.getComputedStyle(el),
width = el.clientWidth,
margin = parseFloat(style.marginLeft) + parseFloat(style.marginRight),
padding = parseFloat(style.paddingLeft) + parseFloat(style.paddingRight),
border =
parseFloat(style.borderLeftWidth) + parseFloat(style.borderRightWidth);
return width + margin + padding + border;
}
function setUpScroll(oneOffs, mask = false) {
let container = oneOffs.buttons.parentElement;
let { buttons } = oneOffs;
let buttonsList = buttons.children;
container.maskDisabled = !mask;
oneOffs.canScroll = true;
container.style.cssText =
"display: flex !important; align-items: center !important; scrollbar-width: none; box-sizing: border-box; scroll-behavior: smooth !important; overflow: hidden !important";
container.setAttribute("smoothscroll", "true");
container.setAttribute("clicktoscroll", "true");
container.setAttribute("overflowing", "true");
container.setAttribute("orient", "horizontal");
container.smoothScroll = true;
container._clickToScroll = true;
container._isScrolling = false;
container._destination = 0;
container._direction = 0;
container._prevMouseScrolls = [null, null];
container.scrollByPixels = function (aPixels, aInstant) {
let scrollOptions = { behavior: aInstant ? "instant" : "auto" };
scrollOptions.left = aPixels;
this.scrollBy(scrollOptions);
};
container.lineScrollAmount = function () {
return buttonsList.length
? Math.round(buttons.scrollWidth * 0.1) / 0.1 / buttonsList.length
: 30;
};
container.on_Scroll = function (_e) {
this._isScrolling = true;
};
container.on_Scrollend = function (_e) {
this._isScrolling = false;
this._destination = 0;
this._direction = 0;
};
container.on_Wheel = function (e) {
let doScroll = false;
let instant;
let scrollAmount = 0;
let isVertical = Math.abs(e.deltaY) > Math.abs(e.deltaX);
let delta = isVertical ? e.deltaY : e.deltaX;
if (this._prevMouseScrolls.every(prev => prev == isVertical)) {
doScroll = true;
switch (e.deltaMode) {
case e.DOM_DELTA_PIXEL:
scrollAmount = delta;
instant = true;
break;
case e.DOM_DELTA_PAGE:
scrollAmount = delta * buttons.clientWidth;
break;
default:
scrollAmount = delta * this.lineScrollAmount();
}
}
if (this._prevMouseScrolls.length > 1) this._prevMouseScrolls.shift();
this._prevMouseScrolls.push(isVertical);
if (doScroll) {
let direction = scrollAmount < 0 ? -1 : 1;
let startPos = this.scrollLeft;
if (!this._isScrolling || this._direction != direction) {
this._destination = startPos + scrollAmount;
this._direction = direction;
} else {
this._destination = this._destination + scrollAmount;
scrollAmount = this._destination - startPos;
}
this.scrollByPixels(scrollAmount, instant);
}
e.stopPropagation();
e.preventDefault();
};
container.addEventListener("wheel", container.on_Wheel);
container.addEventListener("scroll", container.on_Scroll);
container.addEventListener("scrollend", container.on_Scrollend);
container.style.paddingInline = `4px`;
container.style.clipPath = `inset(0 4px 0 4px)`;
oneOffs.scrollToButton = function (el) {
if (!el) el = buttons.firstElementChild;
let slider = container;
if (!slider) return;
let buttonX = rectX(el) - rectX(slider.firstElementChild);
let buttonWidth = parseWidth(el);
let midpoint = slider.clientWidth / 2;
slider.scrollTo({
left: buttonX + buttonWidth / 2 - midpoint,
behavior: "auto",
});
};
oneOffs.on_SelectedOneOffButtonChanged = function () {
oneOffs.scrollToButton(oneOffs.selectedButton);
};
oneOffs.addEventListener(
"SelectedOneOffButtonChanged",
oneOffs.on_SelectedOneOffButtonChanged
);
}
function init() {
setTimeout(() => {
setUpScroll(gURLBar.view.oneOffSearchButtons, true);
}, 100);
document
.getElementById("PopupSearchAutoComplete")
.addEventListener(
"popupshowing",
e =>
setUpScroll(
document.getElementById("PopupSearchAutoComplete").oneOffButtons
),
{ once: true }
);
}
if (gBrowserInit.delayedStartupFinished) {
init();
} else {
let delayedListener = (subject, topic) => {
if (topic == "browser-delayed-startup-finished" && subject == window) {
Services.obs.removeObserver(delayedListener, topic);
init();
}
};
Services.obs.addObserver(
delayedListener,
"browser-delayed-startup-finished"
);
}
})();