add qr context menus

public/scripts/extensions/quick-reply/src/SubMenu.js

@@ -0,0 +1,55 @@
+import { MenuItem } from "./MenuItem.js";
+
+export class SubMenu {
+	/**@type {MenuItem[]}*/ itemList = [];
+	/**@type {Boolean}*/ isActive = false;
+	
+	/**@type {HTMLElement}*/ root;
+
+
+
+
+	constructor(/**@type {MenuItem[]}*/items) {
+		this.itemList = items;
+	}
+
+	render() {
+		if (!this.root) {
+			const menu = document.createElement('ul'); {
+				this.root = menu;
+				menu.classList.add('list-group');
+				menu.classList.add('ctx-menu');
+				menu.classList.add('ctx-sub-menu');
+				this.itemList.forEach(it=>menu.append(it.render()));
+			}
+		}
+		return this.root;
+	}
+
+
+
+
+	show(/**@type {HTMLElement}*/parent) {
+		if (this.isActive) return;
+		this.isActive = true;
+		this.render();
+		parent.append(this.root);
+		requestAnimationFrame(()=>{
+			const rect = this.root.getBoundingClientRect();
+			console.log(window.innerHeight, rect);
+			if (rect.bottom > window.innerHeight - 5) {
+				this.root.style.top = `${window.innerHeight - 5 - rect.bottom}px`;
+			}
+			if (rect.right > window.innerWidth - 5) {
+				this.root.style.left = 'unset';
+				this.root.style.right = '100%';
+			}
+		});
+	}
+	hide() {
+		this.root.remove();
+		this.root.style.top = '';
+		this.root.style.left = '';
+		this.isActive = false;
+	}
+}