tweb/src/components/chat/autocompletePeerHelper.ts

115 lines
3.4 KiB
TypeScript

/*
* https://github.com/morethanwords/tweb
* Copyright (C) 2019-2021 Eduard Kuzmenko
* https://github.com/morethanwords/tweb/blob/master/LICENSE
*/
import RichTextProcessor from "../../lib/richtextprocessor";
import AvatarElement from "../avatar";
import PeerTitle from "../peerTitle";
import Scrollable from "../scrollable";
import AutocompleteHelper from "./autocompleteHelper";
import AutocompleteHelperController from "./autocompleteHelperController";
export default class AutocompletePeerHelper extends AutocompleteHelper {
protected static BASE_CLASS = 'autocomplete-peer-helper';
protected static BASE_CLASS_LIST_ELEMENT = AutocompletePeerHelper.BASE_CLASS + '-list-element';
private scrollable: Scrollable;
constructor(appendTo: HTMLElement, controller: AutocompleteHelperController, protected className: string, onSelect: (target: Element) => boolean | void) {
super({
appendTo,
controller,
listType: 'y',
onSelect
});
this.container.classList.add(AutocompletePeerHelper.BASE_CLASS, className);
}
protected init() {
this.list = document.createElement('div');
this.list.classList.add(AutocompletePeerHelper.BASE_CLASS + '-list');
this.container.append(this.list);
this.scrollable = new Scrollable(this.container);
this.addEventListener('visible', () => {
setTimeout(() => { // it is not rendered yet
this.scrollable.container.scrollTop = 0;
}, 0);
});
}
public render(data: {peerId: PeerId, name?: string, description?: string}[]) {
if(this.init) {
if(!data.length) {
return;
}
this.init();
this.init = null;
}
if(data.length) {
this.list.innerHTML = '';
data.forEach(d => {
const div = AutocompletePeerHelper.listElement({
className: this.className,
peerId: d.peerId,
name: d.name,
description: d.description
});
this.list.append(div);
});
}
this.toggle(!data.length);
}
public static listElement(options: {
className: string,
peerId: PeerId,
name?: string,
description?: string
}) {
const BASE = AutocompletePeerHelper.BASE_CLASS_LIST_ELEMENT;
options.className += '-list-element';
const div = document.createElement('div');
div.classList.add(BASE, options.className);
div.dataset.peerId = '' + options.peerId;
const avatar = new AvatarElement();
avatar.classList.add('avatar-30', BASE + '-avatar', options.className + '-avatar');
avatar.setAttribute('dialog', '0');
avatar.setAttribute('peer', '' + options.peerId);
const name = document.createElement('div');
name.classList.add(BASE + '-name', options.className + '-name');
if(!options.name) {
name.append(new PeerTitle({
peerId: options.peerId,
dialog: false,
onlyFirstName: false,
plainText: false
}).element);
} else {
name.innerHTML = RichTextProcessor.wrapEmojiText(options.name);
}
div.append(avatar, name);
if(options.description) {
const description = document.createElement('div');
description.classList.add(BASE + '-description', options.className + '-description');
description.innerHTML = RichTextProcessor.wrapEmojiText(options.description);
div.append(description);
}
return div;
}
}