add qr context menus

This commit is contained in:
LenAnderson
2023-11-23 12:21:25 +00:00
parent b4afb10fab
commit cc426e9897
6 changed files with 268 additions and 3 deletions

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import { MenuItem } from "./MenuItem.js";
export class ContextMenu {
/**@type {HTMLElement}*/ root;
/**@type {HTMLElement}*/ menu;
/**@type {MenuItem[]}*/ itemList = [];
constructor(/**@type {MenuItem[]}*/items) {
this.itemList = items;
}
render() {
if (!this.root) {
const blocker = document.createElement('div'); {
this.root = blocker;
blocker.classList.add('ctx-blocker');
blocker.addEventListener('click', ()=>this.hide());
const menu = document.createElement('ul'); {
this.menu = menu;
menu.classList.add('list-group');
menu.classList.add('ctx-menu');
this.itemList.forEach(it=>menu.append(it.render()));
blocker.append(menu);
}
}
}
return this.root;
}
show({screenX, screenY}) {
this.render();
this.menu.style.bottom = `${window.innerHeight - screenY}px`;
this.menu.style.left = `${screenX}px`;
document.body.append(this.root);
}
hide() {
this.root.remove();
}
}

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import { SubMenu } from "./SubMenu.js";
export class MenuHeader {
/**@type {String}*/ label;
/**@type {HTMLElement}*/ root;
constructor(/**@type {String}*/label) {
this.label = label;
}
render() {
if (!this.root) {
const item = document.createElement('li'); {
this.root = item;
item.classList.add('list-group-item');
item.classList.add('ctx-header');
item.append(this.label);
}
}
return this.root;
}
}

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import { SubMenu } from "./SubMenu.js";
export class MenuItem {
/**@type {String}*/ label;
/**@type {Object}*/ value;
/**@type {Function}*/ callback;
/**@type {MenuItem[]}*/ childList = [];
/**@type {HTMLElement}*/ root;
constructor(/**@type {String}*/label, /**@type {Object}*/value, /**@type {function}*/callback, /**@type {MenuItem[]}*/children=[]) {
this.label = label;
this.value = value;
this.callback = callback;
this.childList = children;
}
render() {
if (!this.root) {
const item = document.createElement('li'); {
this.root = item;
item.classList.add('list-group-item');
item.classList.add('ctx-item');
item.title = this.value;
if (this.callback) {
item.addEventListener('click', (evt)=>this.callback(evt, this));
}
if (this.childList.length > 0) {
item.classList.add('ctx-has-children');
const sub = new SubMenu(this.childList);
item.addEventListener('pointerover', ()=>sub.show(item));
item.addEventListener('pointerleave', ()=>sub.hide());
}
item.append(this.label);
}
}
return this.root;
}
}

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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;
}
}