464 lines
20 KiB
JavaScript
464 lines
20 KiB
JavaScript
/**
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* @module converse-emoji-views
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* @copyright 2013-2019, the Converse.js developers
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* @license Mozilla Public License (MPLv2)
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*/
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import "@converse/headless/converse-emoji";
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import { debounce, find, get } from "lodash";
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import DOMNavigator from "./dom-navigator";
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import bootstrap from "bootstrap.native";
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import tpl_emoji_button from "templates/emoji_button.html";
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import tpl_emojis from "templates/emojis.html";
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const { Backbone, sizzle } = converse.env;
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const u = converse.env.utils;
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converse.plugins.add('converse-emoji-views', {
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/* Plugin dependencies are other plugins which might be
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* overridden or relied upon, and therefore need to be loaded before
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* this plugin.
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*
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* If the setting "strict_plugin_dependencies" is set to true,
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* an error will be raised if the plugin is not found. By default it's
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* false, which means these plugins are only loaded opportunistically.
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*
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* NB: These plugins need to have already been loaded via require.js.
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*/
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dependencies: ["converse-emoji", "converse-chatview", "converse-muc-views"],
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overrides: {
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ChatBoxView: {
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events: {
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'click .toggle-smiley': 'toggleEmojiMenu',
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},
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onEnterPressed () {
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if (this.emoji_dropdown && u.isVisible(this.emoji_dropdown.el.querySelector('.emoji-picker'))) {
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this.emoji_dropdown.toggle();
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}
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this.__super__.onEnterPressed.apply(this, arguments);
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},
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onKeyDown (ev) {
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if (ev.keyCode === converse.keycodes.TAB) {
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const value = u.getCurrentWord(ev.target, null, /(:.*?:)/g);
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if (value.startsWith(':')) {
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ev.preventDefault();
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ev.stopPropagation();
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return this.autocompleteInPicker(ev.target, value);
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}
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}
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return this.__super__.onKeyDown.call(this, ev);
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}
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},
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ChatRoomView: {
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events: {
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'click .toggle-smiley': 'toggleEmojiMenu'
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}
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}
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},
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initialize () {
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/* The initialize function gets called as soon as the plugin is
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* loaded by converse.js's plugin machinery.
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*/
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const { _converse } = this;
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const { __ } = _converse;
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_converse.api.settings.update({
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'use_system_emojis': true,
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'visible_toolbar_buttons': {
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'emoji': true
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},
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});
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const emoji_aware_chat_view = {
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async autocompleteInPicker (input, value) {
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await this.createEmojiDropdown();
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this.emoji_picker_view.model.set({
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'autocompleting': value,
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'position': input.selectionStart
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}, {'silent': true});
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this.emoji_picker_view.filter(value, true);
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this.emoji_dropdown.toggle();
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},
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createEmojiPicker () {
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if (this.emoji_picker_view) {
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this.insertEmojiPicker();
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return;
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}
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if (!_converse.emojipicker) {
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const id = `converse.emoji-${_converse.bare_jid}`;
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_converse.emojipicker = new _converse.EmojiPicker({'id': id});
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_converse.emojipicker.browserStorage = _converse.createStore(id);
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_converse.emojipicker.fetch();
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}
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this.emoji_picker_view = new _converse.EmojiPickerView({'model': _converse.emojipicker});
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this.emoji_picker_view.chatview = this;
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this.insertEmojiPicker();
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},
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async createEmojiDropdown () {
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if (!this.emoji_dropdown) {
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await _converse.api.waitUntil('emojisInitialized');
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const el = this.el.querySelector('.emoji-picker');
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this.emoji_dropdown = new bootstrap.Dropdown(el, true);
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this.emoji_dropdown.el = el;
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}
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},
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async toggleEmojiMenu (ev) {
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ev.stopPropagation();
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await this.createEmojiDropdown();
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this.emoji_dropdown.toggle();
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this.emoji_picker_view.setScrollPosition();
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},
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insertEmojiPicker () {
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const el = this.el.querySelector('.emoji-picker__container');
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el.innerHTML = '';
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el.appendChild(this.emoji_picker_view.el);
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}
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};
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Object.assign(_converse.ChatBoxView.prototype, emoji_aware_chat_view);
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_converse.EmojiPickerView = Backbone.VDOMView.extend({
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className: 'emoji-picker',
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events: {
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'click .emoji-picker__header li.emoji-category .pick-category': 'chooseCategory',
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'click .emoji-skintone-picker li.emoji-skintone': 'chooseSkinTone',
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'click .insert-emoji': 'insertEmoji',
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'focus .emoji-search': 'disableArrowNavigation',
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'keydown .emoji-search': 'onKeyDown'
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},
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async initialize () {
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this.onGlobalKeyDown = ev => this._onGlobalKeyDown(ev);
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const body = document.querySelector('body');
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body.addEventListener('keydown', this.onGlobalKeyDown);
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this.search_results = [];
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this.debouncedFilter = debounce(input => this.filter(input.value), 150);
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this.listenTo(this.model, 'change:query', this.render)
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this.listenTo(this.model, 'change:current_skintone', this.render)
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this.listenTo(this.model, 'change:current_category', () => {
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this.render();
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const category = this.model.get('current_category');
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const el = this.el.querySelector(`.emoji-category[data-category="${category}"]`);
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this.navigator.select(el);
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!this.navigator.enabled && this.navigator.enable();
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});
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await _converse.api.waitUntil('emojisInitialized');
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this.render();
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},
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toHTML () {
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return tpl_emojis(
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Object.assign(
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this.model.toJSON(), {
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'__': __,
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'_converse': _converse,
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'emoji_categories': _converse.emoji_categories,
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'emojis_by_category': _converse.emojis.json,
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'shouldBeHidden': shortname => this.shouldBeHidden(shortname),
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'skintones': ['tone1', 'tone2', 'tone3', 'tone4', 'tone5'],
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'toned_emojis': _converse.emojis.toned,
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'transform': u.getEmojiRenderer(),
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'transformCategory': shortname => u.getEmojiRenderer()(this.getTonedShortname(shortname)),
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'search_results': this.search_results
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}
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)
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);
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},
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remove () {
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const body = document.querySelector('body');
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body.removeEventListener('keydown', this.onGlobalKeyDown);
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Backbone.VDOMView.prototype.remove.call(this);
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},
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afterRender () {
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this.initIntersectionObserver();
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const textarea = this.el.querySelector('.emoji-search');
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textarea.addEventListener('focus', ev => this.chatview.emitFocused(ev));
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textarea.addEventListener('blur', ev => this.chatview.emitBlurred(ev));
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this.initArrowNavigation();
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},
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initArrowNavigation () {
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if (!this.navigator) {
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const default_selector = 'li:not(.hidden):not(.emoji-skintone), .emoji-search';
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const options = {
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'jump_to_picked': '.emoji-category',
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'jump_to_picked_selector': '.emoji-category.picked',
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'jump_to_picked_direction': DOMNavigator.DIRECTION.down,
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'picked_selector': '.picked',
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'scroll_container': this.el.querySelector('.emoji-picker__lists'),
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'getSelector': direction => {
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if (direction === DOMNavigator.DIRECTION.down) {
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const c = this.navigator.selected && this.navigator.selected.getAttribute('data-category');
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return c ? `ul[data-category="${c}"] li:not(.hidden):not(.emoji-skintone), .emoji-search` : default_selector;
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} else {
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return default_selector;
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}
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},
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'onSelected': el => {
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el.matches('.insert-emoji') && this.setCategoryForElement(el.parentElement);
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el.matches('.insert-emoji, .emoji-category') && el.firstElementChild.focus();
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el.matches('.emoji-search') && el.focus();
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}
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};
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this.navigator = new DOMNavigator(this.el, options);
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this.listenTo(this.chatview.model, 'destroy', () => this.navigator.destroy());
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}
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},
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enableArrowNavigation (ev) {
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if (ev) {
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ev.preventDefault();
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ev.stopPropagation();
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}
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this.disableArrowNavigation();
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this.navigator.enable();
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this.navigator.handleKeydown(ev);
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},
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disableArrowNavigation () {
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this.navigator.disable();
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},
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filter (value, set_property) {
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const old_query = this.model.get('query');
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if (!value) {
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this.search_results = [];
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} else if (old_query && value.includes(old_query)) {
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this.search_results = this.search_results.filter(e => _converse.FILTER_CONTAINS(e.sn, value));
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} else {
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this.search_results = _converse.emojis_list.filter(e => _converse.FILTER_CONTAINS(e.sn, value));
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}
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this.model.set({'query': value});
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if (set_property) {
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// XXX: Ideally we would set `query` on the model and
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// then let the view re-render, instead of doing it
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// manually here. Snabbdom supports setting properties,
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// Backbone.VDOMView doesn't.
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const input = this.el.querySelector('.emoji-search');
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input.value = value;
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}
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},
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setCategoryForElement (el) {
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const category = el.getAttribute('data-category');
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const old_category = this.model.get('current_category');
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if (old_category !== category) {
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// XXX: Manually set the classes, it's quicker than using the VDOM
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this.model.set(
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{'current_category': category},
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{'silent': true}
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);
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const category_els = sizzle('.emoji-picker__header .emoji-category', this.el);
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category_els.forEach(el => u.removeClass('picked', el));
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const new_el = category_els.filter(el => el.getAttribute('data-category') === category).pop();
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new_el && u.addClass('picked', new_el);
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}
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},
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setCategoryOnVisibilityChange (ev) {
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const selected = this.navigator.selected;
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const intersection_with_selected = ev.filter(i => i.target.contains(selected)).pop();
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let current;
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// Choose the intersection that contains the currently selected
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// element, or otherwise the one with the largest ratio.
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if (intersection_with_selected) {
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current = intersection_with_selected;
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} else {
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current = ev.reduce((p, c) => c.intersectionRatio >= get(p, 'intersectionRatio', 0) ? c : p, null);
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}
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current && current.isIntersecting && this.setCategoryForElement(current.target);
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},
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initIntersectionObserver () {
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if (!window.IntersectionObserver) {
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return;
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}
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if (this.observer) {
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this.observer.disconnect();
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} else {
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const options = {
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root: this.el.querySelector('.emoji-picker__lists'),
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threshold: [0.1]
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}
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const handler = ev => this.setCategoryOnVisibilityChange(ev);
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this.observer = new IntersectionObserver(handler, options);
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}
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sizzle('.emoji-picker', this.el).forEach(a => this.observer.observe(a));
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},
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insertIntoTextArea (value) {
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const replace = this.model.get('autocompleting');
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const position = this.model.get('position');
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this.model.set({'autocompleting': null, 'position': null});
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this.chatview.insertIntoTextArea(value, replace, false, position);
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if (this.chatview.emoji_dropdown) {
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this.chatview.emoji_dropdown.toggle();
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}
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this.filter('', true);
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this.disableArrowNavigation();
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},
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onEnterPressed (ev) {
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ev.preventDefault();
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ev.stopPropagation();
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if (_converse.emoji_shortnames.includes(ev.target.value)) {
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this.insertIntoTextArea(ev.target.value);
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} else if (this.search_results.length === 1) {
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this.insertIntoTextArea(this.search_results[0].sn);
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} else if (this.navigator.selected && this.navigator.selected.matches('.insert-emoji')) {
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this.insertIntoTextArea(this.navigator.selected.getAttribute('data-emoji'));
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} else if (this.navigator.selected && this.navigator.selected.matches('.emoji-category')) {
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this.chooseCategory({'target': this.navigator.selected});
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}
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},
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_onGlobalKeyDown (ev) {
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if (!this.navigator) {
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return;
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}
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if (ev.keyCode === converse.keycodes.ENTER &&
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this.navigator.selected &&
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u.isVisible(this.el)) {
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this.onEnterPressed(ev);
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} else if (ev.keyCode === converse.keycodes.DOWN_ARROW &&
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!this.navigator.enabled &&
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u.isVisible(this.el)) {
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this.enableArrowNavigation(ev);
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}
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},
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onKeyDown (ev) {
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if (ev.keyCode === converse.keycodes.RIGHT_ARROW) {
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ev.preventDefault();
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ev.stopPropagation();
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ev.target.blur();
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const first_el = this.el.querySelector('.pick-category');
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this.navigator.select(first_el, 'right');
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} else if (ev.keyCode === converse.keycodes.TAB) {
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if (ev.target.value) {
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ev.preventDefault();
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const match = find(_converse.emoji_shortnames, sn => _converse.FILTER_CONTAINS(sn, ev.target.value));
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match && this.filter(match, true);
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} else if (!this.navigator.enabled) {
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this.enableArrowNavigation(ev);
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}
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} else if (ev.keyCode === converse.keycodes.DOWN_ARROW && !this.navigator.enabled) {
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this.enableArrowNavigation(ev);
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} else if (ev.keyCode === converse.keycodes.ENTER) {
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this.onEnterPressed(ev);
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} else if (
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ev.keyCode !== converse.keycodes.ENTER &&
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ev.keyCode !== converse.keycodes.DOWN_ARROW
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) {
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this.debouncedFilter(ev.target);
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}
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},
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shouldBeHidden (shortname) {
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// Helper method for the template which decides whether an
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// emoji should be hidden, based on which skin tone is
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// currently being applied.
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const current_skintone = this.model.get('current_skintone');
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if (shortname.includes('_tone')) {
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if (!current_skintone || !shortname.includes(current_skintone)) {
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return true;
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}
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} else {
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if (current_skintone && _converse.emojis.toned.includes(shortname)) {
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return true;
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}
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}
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const query = this.model.get('query');
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if (query && !_converse.FILTER_CONTAINS(shortname, query)) {
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return true;
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}
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return false;
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},
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getTonedShortname (shortname) {
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if (_converse.emojis.toned.includes(shortname) && this.model.get('current_skintone')) {
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return `${shortname.slice(0, shortname.length-1)}_${this.model.get('current_skintone')}:`
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}
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return shortname;
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},
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chooseSkinTone (ev) {
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ev.preventDefault();
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ev.stopPropagation();
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const target = ev.target.nodeName === 'IMG' ?
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ev.target.parentElement : ev.target;
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const skintone = target.getAttribute("data-skintone").trim();
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if (this.model.get('current_skintone') === skintone) {
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this.model.save({'current_skintone': ''});
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} else {
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this.model.save({'current_skintone': skintone});
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}
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},
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chooseCategory (ev) {
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ev.preventDefault && ev.preventDefault();
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ev.stopPropagation && ev.stopPropagation();
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const input = this.el.querySelector('.emoji-search');
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input.value = '';
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const el = ev.target.matches('li') ? ev.target : u.ancestor(ev.target, 'li');
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this.setCategoryForElement(el);
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this.navigator.select(el);
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this.setScrollPosition();
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},
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setScrollPosition () {
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const category = this.model.get('current_category');
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const el = this.el.querySelector('.emoji-picker__lists');
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const heading = this.el.querySelector(`#emoji-picker-${category}`);
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if (heading) {
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// +4 due to 2px padding on list elements
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el.scrollTop = heading.offsetTop - heading.offsetHeight*3 + 4;
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}
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},
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insertEmoji (ev) {
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ev.preventDefault();
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ev.stopPropagation();
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const target = ev.target.nodeName === 'IMG' ? ev.target.parentElement : ev.target;
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const replace = this.model.get('autocompleting');
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const position = this.model.get('position');
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this.model.set({'autocompleting': null, 'position': null});
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this.chatview.insertIntoTextArea(target.getAttribute('data-emoji'), replace, false, position);
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this.chatview.emoji_dropdown.toggle();
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this.filter('', true);
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}
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});
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/************************ BEGIN Event Handlers ************************/
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_converse.api.listen.on('chatBoxClosed', view => view.emoji_picker_view && view.emoji_picker_view.remove());
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_converse.api.listen.on('renderToolbar', view => {
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if (_converse.visible_toolbar_buttons.emoji) {
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const html = tpl_emoji_button({'tooltip_insert_smiley': __('Insert emojis')});
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view.el.querySelector('.chat-toolbar').insertAdjacentHTML('afterBegin', html);
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view.createEmojiPicker();
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}
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});
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}
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});
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