ScrollZoomer

Zooms in shared screens on scroll

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         ScrollZoomer
// @namespace    https://greasyfork.org/en/scripts/536617-scrollzoomer
// @version      0.1
// @description  Zooms in shared screens on scroll
// @author       DonNadie
// @match        https://meet.google.com/*
// @license MIT
// ==/UserScript==

class ScrollZoomer {
	constructor() {
		document.body.addEventListener("wheel", (event) => {
			if (event.deltaY === 0) {
				return;
			}
			if (event.deltaY > 0) {
				this.zoomOut();
			} else {
				this.zoomIn();
			}
		});
	}

	zoomIn(secondAttempt) {
		const button = this.getButton("Zoom in");

		if (!button) {
			if (this.enableZoomButtons() && !secondAttempt) {
				setTimeout(() => {
					this.zoomIn(true);
				}, 400);
			} else {
				return;
			}
		}

		button.click();
	}

	zoomOut(secondAttempt) {
		const button = this.getButton("Zoom out");

		if (!button) {
			if (this.enableZoomButtons() && !secondAttempt) {
				setTimeout(() => {
					this.zoomOut(true);
				}, 400);
			} else {
				return;
			}
		}

		button.click();
	}

	enableZoomButtons() {
		const button = this.getButton("Zoom");

		if (!button) {
			return false;
		}
		button.click();
		return true;
	}

	getButton(text) {
		const result = document.evaluate(`//div[text()="${text}"]`, document, null, XPathResult.ANY_TYPE, null);
		if (!result) {
			return null;
		}

		const match = result.iterateNext();
		if (!match) {
			return null;
		}

		return match.parentElement.querySelector('button');
	}
}
new ScrollZoomer();