90 lines
3.1 KiB
JavaScript
90 lines
3.1 KiB
JavaScript
import './message-history';
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import { CustomElement } from 'shared/components/element.js';
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import { api } from '@converse/headless/core';
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import { html } from 'lit';
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import { markScrolled } from './utils.js';
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import './styles/chat-content.scss';
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export default class ChatContent extends CustomElement {
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static get properties () {
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return {
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jid: { type: String }
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}
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}
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connectedCallback () {
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super.connectedCallback();
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this.initialize();
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}
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disconnectedCallback () {
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super.disconnectedCallback();
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this.removeEventListener('scroll', markScrolled);
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}
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async initialize () {
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await this.setModels();
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this.listenTo(this.model, 'change:hidden_occupants', this.requestUpdate);
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this.listenTo(this.model.messages, 'add', this.requestUpdate);
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this.listenTo(this.model.messages, 'change', this.requestUpdate);
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this.listenTo(this.model.messages, 'remove', this.requestUpdate);
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this.listenTo(this.model.messages, 'rendered', this.requestUpdate);
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this.listenTo(this.model.messages, 'reset', this.requestUpdate);
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this.listenTo(this.model.notifications, 'change', this.requestUpdate);
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this.listenTo(this.model.ui, 'change', this.requestUpdate);
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this.listenTo(this.model.ui, 'change:scrolled', this.scrollDown);
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if (this.model.occupants) {
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this.listenTo(this.model.occupants, 'change', this.requestUpdate);
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}
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this.addEventListener('scroll', markScrolled);
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}
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async setModels () {
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this.model = await api.chatboxes.get(this.jid);
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await this.model.initialized;
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this.requestUpdate();
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}
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render () {
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if (!this.model) {
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return '';
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}
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// This element has "flex-direction: reverse", so elements here are
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// shown in reverse order.
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return html`
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<div class="chat-content__notifications">${this.model.getNotificationsText()}</div>
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<converse-message-history
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.model=${this.model}
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.messages=${[...this.model.messages.models]}>
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</converse-message-history>
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${ this.model.ui?.get('chat-content-spinner-top') ? html`<span class="spinner fa fa-spinner centered"></span>` : '' }
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`;
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}
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scrollDown () {
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if (this.model.ui.get('scrolled')) {
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return;
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}
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if (this.scrollTo) {
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const behavior = this.scrollTop ? 'smooth' : 'auto';
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this.scrollTo({ 'top': 0, behavior });
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} else {
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this.scrollTop = 0;
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}
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/**
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* Triggered once the converse-chat-content element has been scrolled down to the bottom.
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* @event _converse#chatBoxScrolledDown
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* @type {object}
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* @property { _converse.ChatBox | _converse.ChatRoom } chatbox - The chat model
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* @example _converse.api.listen.on('chatBoxScrolledDown', obj => { ... });
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*/
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api.trigger('chatBoxScrolledDown', { 'chatbox': this.model });
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}
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}
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api.elements.define('converse-chat-content', ChatContent);
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