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Redirects browser zoom shortcuts to use comick.dev's native zoom system
// ==UserScript==
// @name Comick.dev Native Zoom Control
// @namespace https://github.com/GooglyBlox
// @version 1.1
// @description Redirects browser zoom shortcuts to use comick.dev's native zoom system
// @author GooglyBlox
// @match https://comick.dev/*
// @grant none
// @run-at document-start
// @license MIT
// ==/UserScript==
(function() {
'use strict';
let zoomControls = null;
let lastControlsSearch = 0;
const SEARCH_THROTTLE = 500;
function findZoomControls() {
const now = Date.now();
if (now - lastControlsSearch < SEARCH_THROTTLE && zoomControls) {
return zoomControls;
}
lastControlsSearch = now;
const zoomContainer = document.getElementById('zoom-btn');
if (!zoomContainer) {
zoomControls = null;
return null;
}
const buttons = zoomContainer.querySelectorAll('button');
if (buttons.length < 2) {
zoomControls = null;
return null;
}
let zoomOut = null;
let zoomIn = null;
buttons.forEach(button => {
const svg = button.querySelector('svg');
if (svg) {
const path = svg.querySelector('path');
if (path) {
const d = path.getAttribute('d');
if (d === 'M5 12h14') {
zoomOut = button;
} else if (d === 'M12 4.5v15m7.5-7.5h-15') {
zoomIn = button;
}
}
}
});
if (!zoomOut && !zoomIn) {
zoomOut = buttons[0];
zoomIn = buttons[1];
}
if (zoomOut && zoomIn) {
zoomControls = { zoomIn, zoomOut };
return zoomControls;
}
zoomControls = null;
return null;
}
function triggerZoomIn() {
const controls = findZoomControls();
if (controls && controls.zoomIn) {
controls.zoomIn.click();
return true;
}
return false;
}
function triggerZoomOut() {
const controls = findZoomControls();
if (controls && controls.zoomOut) {
controls.zoomOut.click();
return true;
}
return false;
}
function isZoomShortcut(event) {
const isModifierPressed = event.ctrlKey || event.metaKey;
if (!isModifierPressed) return null;
if (event.code === 'Equal' || event.code === 'NumpadAdd' || event.key === '=' || event.key === '+') {
return 'in';
}
if (event.code === 'Minus' || event.code === 'NumpadSubtract' || event.key === '-') {
return 'out';
}
return null;
}
function handleKeydown(event) {
const zoomDirection = isZoomShortcut(event);
if (!zoomDirection) return;
event.preventDefault();
event.stopPropagation();
event.stopImmediatePropagation();
if (zoomDirection === 'in') {
triggerZoomIn();
} else if (zoomDirection === 'out') {
triggerZoomOut();
}
}
function setupEventListeners() {
document.addEventListener('keydown', handleKeydown, { capture: true, passive: false });
const observer = new MutationObserver(function(mutations) {
let shouldRefresh = false;
for (const mutation of mutations) {
if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
for (const node of mutation.addedNodes) {
if (node.nodeType === 1) {
if (node.id === 'zoom-btn' || (node.querySelector && node.querySelector('#zoom-btn'))) {
shouldRefresh = true;
break;
}
}
}
if (shouldRefresh) break;
}
}
if (shouldRefresh) {
zoomControls = null;
setTimeout(findZoomControls, 100);
}
});
if (document.body) {
observer.observe(document.body, { childList: true, subtree: true });
} else {
document.addEventListener('DOMContentLoaded', () => {
observer.observe(document.body, { childList: true, subtree: true });
});
}
}
function handleSPANavigation() {
const originalPushState = history.pushState;
const originalReplaceState = history.replaceState;
history.pushState = function() {
originalPushState.apply(history, arguments);
setTimeout(() => {
zoomControls = null;
findZoomControls();
}, 200);
};
history.replaceState = function() {
originalReplaceState.apply(history, arguments);
setTimeout(() => {
zoomControls = null;
findZoomControls();
}, 200);
};
window.addEventListener('popstate', () => {
setTimeout(() => {
zoomControls = null;
findZoomControls();
}, 200);
});
}
function init() {
setupEventListeners();
handleSPANavigation();
setTimeout(findZoomControls, 1000);
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
} else {
init();
}
})();