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Fix hover previews on load and channel trailers

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This commit is contained in:
Ajay
2022-07-25 02:40:48 -04:00
parent 1a6e6279c8
commit a9186a35e5
2 changed files with 91 additions and 54 deletions
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79
src/utils.ts
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@@ -2,7 +2,7 @@ import Config, { VideoDownvotes } from "./config";
import { CategorySelection, SponsorTime, FetchResponse, BackgroundScriptContainer, Registration, HashedValue, VideoID, SponsorHideType } from "./types";
import * as CompileConfig from "../config.json";
import { findValidElementFromSelector } from "./utils/pageUtils";
import { findValidElement, findValidElementFromSelector } from "./utils/pageUtils";
import { GenericUtils } from "./utils/genericUtils";
export default class Utils {
@@ -22,8 +22,9 @@ export default class Utils {
];
/* Used for waitForElement */
waitingMutationObserver:MutationObserver = null;
waitingElements: { selector: string, callback: (element: Element) => void }[] = [];
creatingWaitingMutationObserver = false;
waitingMutationObserver: MutationObserver = null;
waitingElements: { selector: string, visibleCheck: boolean, callback: (element: Element) => void }[] = [];
constructor(backgroundScriptContainer: BackgroundScriptContainer = null) {
this.backgroundScriptContainer = backgroundScriptContainer;
@@ -34,40 +35,66 @@ export default class Utils {
}
/* Uses a mutation observer to wait asynchronously */
async waitForElement(selector: string): Promise<Element> {
async waitForElement(selector: string, visibleCheck = false): Promise<Element> {
return await new Promise((resolve) => {
const initialElement = this.getElement(selector, visibleCheck);
if (initialElement) {
resolve(initialElement);
return;
}
this.waitingElements.push({
selector,
visibleCheck,
callback: resolve
});
if (!this.waitingMutationObserver) {
this.waitingMutationObserver = new MutationObserver(() => {
const foundSelectors = [];
for (const { selector, callback } of this.waitingElements) {
const element = document.querySelector(selector);
if (element) {
callback(element);
foundSelectors.push(selector);
}
}
if (!this.creatingWaitingMutationObserver) {
this.creatingWaitingMutationObserver = true;
this.waitingElements = this.waitingElements.filter((element) => !foundSelectors.includes(element.selector));
if (this.waitingElements.length === 0) {
this.waitingMutationObserver.disconnect();
this.waitingMutationObserver = null;
}
});
this.waitingMutationObserver.observe(document.body, {
childList: true,
subtree: true
});
if (document.body) {
this.setupWaitingMutationListener();
} else {
window.addEventListener("DOMContentLoaded", () => {
this.setupWaitingMutationListener();
});
}
}
});
}
private setupWaitingMutationListener(): void {
if (!this.waitingMutationObserver) {
this.waitingMutationObserver = new MutationObserver(() => {
const foundSelectors = [];
for (const { selector, visibleCheck, callback } of this.waitingElements) {
const element = this.getElement(selector, visibleCheck);
if (element) {
callback(element);
foundSelectors.push(selector);
}
}
this.waitingElements = this.waitingElements.filter((element) => !foundSelectors.includes(element.selector));
if (this.waitingElements.length === 0) {
this.waitingMutationObserver.disconnect();
this.waitingMutationObserver = null;
this.creatingWaitingMutationObserver = false;
}
});
this.waitingMutationObserver.observe(document.body, {
childList: true,
subtree: true
});
}
}
private getElement(selector: string, visibleCheck: boolean) {
return visibleCheck ? findValidElement(document.querySelectorAll(selector)) : document.querySelector(selector);
}
containsPermission(permissions: chrome.permissions.Permissions): Promise<boolean> {
return new Promise((resolve) => {
chrome.permissions.contains(permissions, resolve)