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import { generateId, wait } from "./shared_utils.js";
import { createElement as $el, getClosestOrSelf, setAttributes} from "./utils_dom.js";
/**
* A menu. Mimics the comfy menu.
*/
class Menu {
private element: HTMLMenuElement = $el('menu.rgthree-menu');
private callbacks: Map<string, (e: PointerEvent) => Promise<boolean|void>> = new Map();
private handleWindowPointerDownBound = this.handleWindowPointerDown.bind(this);
constructor(options: MenuOption[]) {
this.setOptions(options);
this.element.addEventListener('pointerup', async (e) => {
const target = getClosestOrSelf(e.target as HTMLElement, "[data-callback],menu");
if (e.which !== 1) {
return;
}
const callback = target?.dataset?.['callback'];
if (callback) {
const halt = await this.callbacks.get(callback)?.(e);
if (halt !== false) {
this.close();
}
}
e.preventDefault();
e.stopPropagation();
e.stopImmediatePropagation();
});
}
setOptions(options: MenuOption[]) {
for (const option of options) {
if (option.type === 'title') {
this.element.appendChild($el(`li`, {
html: option.label
}));
} else {
const id = generateId(8);
this.callbacks.set(id, async (e: PointerEvent) => { return option?.callback?.(e); });
this.element.appendChild($el(`li[role="button"][data-callback="${id}"]`, {
html: option.label
}));
}
}
}
toElement() {
return this.element;
}
async open(e: PointerEvent) {
const parent = (e.target as HTMLElement).closest('div,dialog,body') as HTMLElement
parent.appendChild(this.element);
setAttributes(this.element, {
style: {
left: `${e.clientX + 16}px`,
top: `${e.clientY - 16}px`,
}
});
this.element.setAttribute('state', 'measuring-open');
await wait(16);
const rect = this.element.getBoundingClientRect();
if (rect.right > window.innerWidth) {
this.element.style.left = `${e.clientX - rect.width - 16}px`;
await wait(16);
}
this.element.setAttribute('state', 'open');
setTimeout(() => {
window.addEventListener('pointerdown', this.handleWindowPointerDownBound);
});
}
handleWindowPointerDown(e:PointerEvent) {
if (!this.element.contains(e.target as HTMLElement)) {
this.close();
}
}
async close() {
window.removeEventListener('pointerdown', this.handleWindowPointerDownBound);
this.element.setAttribute('state', 'measuring-closed');
await wait(16);
this.element.setAttribute('state', 'closed');
this.element.remove();
}
isOpen() {
return (this.element.getAttribute('state') || '').includes('open');
}
}
type MenuOption = {
label: string;
type?: 'title'|'item'|'separator';
callback?: (e: PointerEvent) => void;
}
type MenuButtonOptions = {
icon: string;
options: MenuOption[];
}
export class MenuButton {
private options: MenuButtonOptions;
private menu: Menu;
private element: HTMLButtonElement = $el('button.rgthree-button[data-action="open-menu"]')
constructor(options: MenuButtonOptions) {
this.options = options;
this.element.innerHTML = options.icon;
this.menu = new Menu(options.options);
this.element.addEventListener('pointerdown', (e) => {
if (!this.menu.isOpen()) {
this.menu.open(e);
}
});
}
toElement() {
return this.element;
}
} |