Fix a bug with the emote menu component if using FrankerFaceZ when not logged in.

src/sites/twitch-twilight/modules/chat/emote_menu.jsx

@@ -795,20 +795,22 @@ export default class EmoteMenu extends Module {
 
 
 				// Finally, emotes added by FrankerFaceZ.
-				const me = t.site.getUser(),
+				const me = t.site.getUser();
-					ffz_room = t.emotes.getRoomSetsWithSources(me.id, me.login, props.channel_id, null),
+				if ( me ) {
-					ffz_global = t.emotes.getGlobalSetsWithSources(me.id, me.login);
+					const ffz_room = t.emotes.getRoomSetsWithSources(me.id, me.login, props.channel_id, null),
+						ffz_global = t.emotes.getGlobalSetsWithSources(me.id, me.login);
 
-				for(const [emote_set, provider] of ffz_room) {
+					for(const [emote_set, provider] of ffz_room) {
-					const section = this.processFFZSet(emote_set, provider);
+						const section = this.processFFZSet(emote_set, provider);
-					if ( section )
+						if ( section )
-						channel.push(section);
+							channel.push(section);
-				}
+					}
 
-				for(const [emote_set, provider] of ffz_global) {
+					for(const [emote_set, provider] of ffz_global) {
-					const section = this.processFFZSet(emote_set, provider);
+						const section = this.processFFZSet(emote_set, provider);
-					if ( section )
+						if ( section )
-						all.push(section);
+							all.push(section);
+					}
 				}
 
 

src/sites/twitch-twilight/modules/chat/tab_completion.jsx

@@ -0,0 +1,152 @@
+'use strict';
+
+// ============================================================================
+// RichContent Component
+// ============================================================================
+
+import Module from 'utilities/module';
+import Twilight from 'site';
+
+export default class TabCompletion extends Module {
+	constructor(...args) {
+		super(...args);
+
+		this.inject('chat');
+		this.inject('chat.emotes');
+		this.inject('i18n');
+		this.inject('settings');
+
+		this.inject('site.fine');
+		this.inject('site.web_munch');
+
+
+		// Settings
+
+		this.settings.add('chat.tab-complete.ffz-emotes', {
+			default: true,
+			ui: {
+				path: 'Chat > Input >> Tab Completion',
+				title: 'Allow tab-completion of FrankerFaceZ emotes.',
+				component: 'setting-check-box'
+			}
+		});
+
+
+		// Components
+
+		this.ChatInput = this.fine.define(
+			'chat-input',
+			n => n && n.setChatInputRef && n.setAutocompleteInputRef,
+			Twilight.CHAT_ROUTES
+		);
+
+
+		this.EmoteSuggestions = this.fine.define(
+			'tab-emote-suggestions',
+			n => n && n.getMatchedEmotes,
+			Twilight.CHAT_ROUTES
+		);
+	}
+
+	onEnable() {
+		const React = this.web_munch.getModule('react'),
+			createElement = React && React.createElement;
+
+		if ( ! createElement )
+			return this.log.warn('Unable to get React.');
+
+		this.ChatInput.ready((cls, instances) => {
+			for(const inst of instances)
+				this.updateEmoteCompletion(inst);
+		});
+
+		this.EmoteSuggestions.ready((cls, instances) => {
+			for(const inst of instances)
+				this.overrideEmoteMatcher(inst);
+		});
+
+		this.ChatInput.on('update', this.updateEmoteCompletion, this);
+		this.EmoteSuggestions.on('mount', this.overrideEmoteMatcher, this);
+	}
+
+
+	updateEmoteCompletion(inst, child) {
+		if ( ! child )
+			child = this.fine.searchTree(inst, 'tab-emote-suggestions');
+		if ( ! child )
+			return;
+
+		child._ffz_user = inst.props.sessionUser;
+		child._ffz_channel_id = inst.props.channelID;
+		child._ffz_channel_login = inst.props.channelLogin;
+	}
+
+
+	overrideEmoteMatcher(inst) {
+		if ( inst._ffz_override )
+			return;
+
+		const t = this,
+			old_get_matched = inst.getMatchedEmotes;
+
+		inst.doesEmoteMatchTerm = function(emote, term) {
+			const emote_name = emote.name || emote.token,
+				emote_lower = emote_name.toLowerCase(),
+				term_lower = term.toLowerCase();
+
+			if (emote_lower.startsWith(term_lower))
+				return true;
+
+			const idx = emote_name.indexOf(term.charAt(0).toUpperCase());
+			if (idx !== -1)
+				return emote_lower.slice(idx + 1).startsWith(term_lower.slice(1));
+		}
+
+		inst.getMatchedEmotes = function(input) {
+			const results = old_get_matched.call(this, input);
+			if ( ! t.chat.context.get('chat.tab-complete.ffz-emotes') )
+				return results;
+
+			return results.concat(t.getEmoteSuggestions(input, this));
+		}
+	}
+
+
+	getEmoteSuggestions(input, inst) {
+		const user = inst._ffz_user,
+			channel_id = inst._ffz_channel_id,
+			channel_login = inst._ffz_channel_login;
+
+		if ( ! channel_login ) {
+			const parent = this.fine.searchParent(inst, 'chat-input');
+			if ( parent )
+				this.updateEmoteCompletion(parent, inst);
+
+			if ( ! channel_login )
+				return [];
+		}
+
+		const search = input.slice(1),
+			results = [],
+			emotes = this.emotes.getEmotes(
+				user && user.id,
+				user && user.login,
+				channel_id,
+				channel_login
+			);
+
+		for(const emote of Object.values(emotes))
+			if ( inst.doesEmoteMatchTerm(emote, search) )
+				results.push({
+					current: input,
+					replacement: emote.name,
+					element: inst.renderEmoteSuggestion({
+						token: emote.name,
+						id: `${emote.token.provider}-${emote.id}`,
+						srcSet: emote.srcSet
+					})
+				});
+
+		return results;
+	}
+}