From 8ea57553455a3177f51f625e045ca9cf6730d408 Mon Sep 17 00:00:00 2001
From: Danish Ahmed Mirza <danishmirza30602@gmail.com>
Date: Tue, 28 Jun 2022 01:02:34 +0530
Subject: [PATCH] Add searchbar for Emojis

---
 app/containers/EmojiPicker/EmojiCategory.tsx |   2 +-
 app/containers/EmojiPicker/Footer.tsx        |   4 +-
 app/containers/EmojiPicker/index.tsx         |   9 +-
 app/containers/EmojiPicker/interfaces.ts     |   7 +-
 app/containers/MessageBox/EmojiSearchbar.tsx | 117 ++++++++++++++++++
 app/containers/MessageBox/constants.ts       |   1 +
 app/containers/MessageBox/index.tsx          | 120 +++++++++++++++----
 app/i18n/locales/en.json                     |   1 +
 8 files changed, 232 insertions(+), 29 deletions(-)
 create mode 100644 app/containers/MessageBox/EmojiSearchbar.tsx

diff --git a/app/containers/EmojiPicker/EmojiCategory.tsx b/app/containers/EmojiPicker/EmojiCategory.tsx
index f5fed80de..fc8188982 100644
--- a/app/containers/EmojiPicker/EmojiCategory.tsx
+++ b/app/containers/EmojiPicker/EmojiCategory.tsx
@@ -47,7 +47,7 @@ const EmojiCategory = React.memo(({ baseUrl, onEmojiSelected, emojis, width, tab
 	return (
 		<FlatList
 			// rerender FlatList in case of width changes
-			key={`emoji-category-${numColumns}`}
+			key={`emoji-category-${width}`}
 			// @ts-ignore
 			keyExtractor={item => (item && item.isCustom && item.content) || item}
 			data={emojis}
diff --git a/app/containers/EmojiPicker/Footer.tsx b/app/containers/EmojiPicker/Footer.tsx
index 1d0a139c7..cd602b621 100644
--- a/app/containers/EmojiPicker/Footer.tsx
+++ b/app/containers/EmojiPicker/Footer.tsx
@@ -7,11 +7,11 @@ import { CustomIcon } from '../CustomIcon';
 import styles from './styles';
 import { IFooterProps } from './interfaces';
 
-const Footer = React.memo(({ onBackspacePressed }: IFooterProps) => {
+const Footer = React.memo(({ onSearchPressed, onBackspacePressed }: IFooterProps) => {
 	const { colors } = useTheme();
 	return (
 		<View style={[styles.footerContainer, { backgroundColor: colors.bannerBackground }]}>
-			<BorderlessButton activeOpacity={0.7} onPress={() => console.log('Search!')} style={styles.footerButtonsContainer}>
+			<BorderlessButton activeOpacity={0.7} onPress={onSearchPressed} style={styles.footerButtonsContainer}>
 				<CustomIcon color={colors.auxiliaryTintColor} size={24} name='search' />
 			</BorderlessButton>
 
diff --git a/app/containers/EmojiPicker/index.tsx b/app/containers/EmojiPicker/index.tsx
index 2e563c927..06075305a 100644
--- a/app/containers/EmojiPicker/index.tsx
+++ b/app/containers/EmojiPicker/index.tsx
@@ -56,7 +56,7 @@ const EmojiPicker = React.memo(({ onItemClicked, tabEmojiStyle }: IEmojiPickerPr
 				const content = emoji;
 				_addFrequentlyUsed({ content, isCustom: false });
 				const shortname = `:${emoji}:`;
-				onItemClicked(EventTypes.EMOJI_PRESSED, shortnameToUnicode(shortname), shortname);
+				onItemClicked(EventTypes.EMOJI_PRESSED, shortnameToUnicode(shortname));
 			}
 		} catch (e) {
 			log(e);
@@ -131,8 +131,6 @@ const EmojiPicker = React.memo(({ onItemClicked, tabEmojiStyle }: IEmojiPickerPr
 		);
 	};
 
-	const onBackspacePressed = () => onItemClicked(EventTypes.BACKSPACE_PRESSED);
-
 	if (!show) {
 		return null;
 	}
@@ -154,7 +152,10 @@ const EmojiPicker = React.memo(({ onItemClicked, tabEmojiStyle }: IEmojiPickerPr
 						: renderCategory(tab.category, i, tab.tabLabel, tabsCount)
 				)}
 			</ScrollableTabView>
-			<Footer onBackspacePressed={onBackspacePressed} />
+			<Footer
+				onSearchPressed={() => onItemClicked(EventTypes.SEARCH_PRESSED)}
+				onBackspacePressed={() => onItemClicked(EventTypes.BACKSPACE_PRESSED)}
+			/>
 		</View>
 	);
 });
diff --git a/app/containers/EmojiPicker/interfaces.ts b/app/containers/EmojiPicker/interfaces.ts
index db7b4cb1f..20347240d 100644
--- a/app/containers/EmojiPicker/interfaces.ts
+++ b/app/containers/EmojiPicker/interfaces.ts
@@ -2,16 +2,19 @@ import { StyleProp, TextStyle } from 'react-native';
 
 export enum EventTypes {
 	EMOJI_PRESSED = 'emojiPressed',
-	BACKSPACE_PRESSED = 'backspacePressed'
+	BACKSPACE_PRESSED = 'backspacePressed',
+	SEARCH_PRESSED = 'searchPressed'
 }
 
 export interface IEmojiPickerProps {
-	onItemClicked: (event: EventTypes, emoji?: string, shortname?: string) => void;
+	baseUrl: string;
+	onItemClicked: (event: EventTypes, emoji?: string) => void;
 	tabEmojiStyle?: StyleProp<TextStyle>;
 }
 
 export interface IFooterProps {
 	onBackspacePressed: () => void;
+	onSearchPressed: () => void;
 }
 
 export interface ITabBarProps {
diff --git a/app/containers/MessageBox/EmojiSearchbar.tsx b/app/containers/MessageBox/EmojiSearchbar.tsx
new file mode 100644
index 000000000..7fe4d0662
--- /dev/null
+++ b/app/containers/MessageBox/EmojiSearchbar.tsx
@@ -0,0 +1,117 @@
+import React, { useEffect, useState } from 'react';
+import { View, Text, TouchableOpacity, TextInput, FlatList } from 'react-native';
+import { orderBy } from 'lodash';
+
+import FormTextInput from '../TextInput/FormTextInput';
+import { useTheme } from '../../theme';
+import I18n from '../../i18n';
+import { CustomIcon } from '../CustomIcon';
+import { IEmoji } from '../../definitions';
+import shortnameToUnicode from '../../lib/methods/helpers/shortnameToUnicode';
+import CustomEmoji from '../EmojiPicker/CustomEmoji';
+import database from '../../lib/database';
+
+interface IEmojiSearchbarProps {
+	openEmoji: () => void;
+	onChangeText: (value: string) => void;
+	emojis: IEmoji[];
+	onEmojiSelected: (emoji: IEmoji) => void;
+	baseUrl: string;
+}
+
+const renderEmoji = (emoji: IEmoji, size: number, baseUrl: string) => {
+	if (emoji.name) {
+		return <CustomEmoji style={{ height: size, width: size }} emoji={emoji} baseUrl={baseUrl} />;
+	}
+	return <Text style={{ fontSize: size }}>{shortnameToUnicode(`:${emoji}:`)}</Text>;
+};
+
+const EmojiSearchbar = React.forwardRef<TextInput, IEmojiSearchbarProps>(
+	({ openEmoji, onChangeText, emojis, onEmojiSelected, baseUrl }, ref) => {
+		console.log('Emojis', emojis);
+		const { colors, theme } = useTheme();
+		const [searchText, setSearchText] = useState<string>('');
+		const [frequentlyUsed, setFrequentlyUsed] = useState([]);
+
+		const getFrequentlyUsedEmojis = async () => {
+			const db = database.active;
+			const frequentlyUsedRecords = await db.get('frequently_used_emojis').query().fetch();
+			const frequentlyUsedOrdered = orderBy(frequentlyUsedRecords, ['count'], ['desc']);
+			const frequentlyUsedEmojis = frequentlyUsedOrdered.map(item => {
+				if (item.isCustom) {
+					return { name: item.content, extension: item.extension };
+				}
+				return item.content;
+			});
+			// @ts-ignore
+			setFrequentlyUsed(frequentlyUsedEmojis);
+		};
+
+		useEffect(() => {
+			getFrequentlyUsedEmojis();
+		}, []);
+
+		const handleTextChange = (text: string) => {
+			setSearchText(text);
+			onChangeText(text);
+			if (!text) getFrequentlyUsedEmojis();
+		};
+
+		const renderItem = (emoji: IEmoji) => {
+			const emojiSize = 30;
+			return (
+				<View style={{ justifyContent: 'center', marginHorizontal: 2 }}>
+					<TouchableOpacity
+						activeOpacity={0.7}
+						// @ts-ignore
+						key={emoji && emoji.isCustom ? emoji.content : emoji}
+						onPress={() => onEmojiSelected(emoji)}>
+						{renderEmoji(emoji, emojiSize, baseUrl)}
+					</TouchableOpacity>
+				</View>
+			);
+		};
+		return (
+			<View>
+				<View style={{ height: 50, paddingHorizontal: 5 }}>
+					<FlatList horizontal data={searchText ? emojis : frequentlyUsed} renderItem={({ item }) => renderItem(item)} />
+				</View>
+				<View
+					style={{
+						flexDirection: 'row',
+						height: 50,
+						marginVertical: 10,
+						justifyContent: 'center',
+						alignItems: 'center'
+					}}>
+					<TouchableOpacity
+						style={{ marginHorizontal: 10, justifyContent: 'center', height: '100%' }}
+						activeOpacity={0.7}
+						onPress={openEmoji}>
+						<CustomIcon name='chevron-left' size={30} color={colors.collapsibleChevron} />
+					</TouchableOpacity>
+					<View style={{ flex: 1 }}>
+						<FormTextInput
+							inputRef={ref}
+							autoCapitalize='none'
+							autoCorrect={false}
+							blurOnSubmit
+							placeholder={I18n.t('Search_emoji')}
+							returnKeyType='search'
+							underlineColorAndroid='transparent'
+							onChangeText={handleTextChange}
+							style={{ backgroundColor: colors.passcodeButtonActive, padding: 10, borderRadius: 5 }}
+							containerStyle={{ height: '100%', justifyContent: 'center', marginBottom: 0, marginRight: 15 }}
+							value={searchText}
+							theme={theme}
+							onClearInput={() => handleTextChange('')}
+							iconRight={'search'}
+						/>
+					</View>
+				</View>
+			</View>
+		);
+	}
+);
+
+export default EmojiSearchbar;
diff --git a/app/containers/MessageBox/constants.ts b/app/containers/MessageBox/constants.ts
index c966c60ce..cd1d750e3 100644
--- a/app/containers/MessageBox/constants.ts
+++ b/app/containers/MessageBox/constants.ts
@@ -4,5 +4,6 @@ export const MENTIONS_TRACKING_TYPE_COMMANDS = '/';
 export const MENTIONS_TRACKING_TYPE_ROOMS = '#';
 export const MENTIONS_TRACKING_TYPE_CANNED = '!';
 export const MENTIONS_COUNT_TO_DISPLAY = 4;
+export const MAX_EMOJIS_TO_DISPLAY = 20;
 
 export const TIMEOUT_CLOSE_EMOJI = 300;
diff --git a/app/containers/MessageBox/index.tsx b/app/containers/MessageBox/index.tsx
index cbca62c0a..84d5008a0 100644
--- a/app/containers/MessageBox/index.tsx
+++ b/app/containers/MessageBox/index.tsx
@@ -1,5 +1,5 @@
 import React, { Component } from 'react';
-import { Alert, Keyboard, NativeModules, Text, View } from 'react-native';
+import { Alert, Keyboard, NativeModules, Text, View, TextInput as RNTextInput } from 'react-native';
 import { connect } from 'react-redux';
 import { KeyboardAccessoryView } from 'react-native-ui-lib/keyboard';
 import ImagePicker, { Image, ImageOrVideo, Options } from 'react-native-image-crop-picker';
@@ -34,7 +34,8 @@ import {
 	MENTIONS_TRACKING_TYPE_EMOJIS,
 	MENTIONS_TRACKING_TYPE_ROOMS,
 	MENTIONS_TRACKING_TYPE_USERS,
-	TIMEOUT_CLOSE_EMOJI
+	TIMEOUT_CLOSE_EMOJI,
+	MAX_EMOJIS_TO_DISPLAY
 } from './constants';
 import CommandsPreview from './CommandsPreview';
 import { getUserSelector } from '../../selectors/login';
@@ -60,6 +61,8 @@ import { Services } from '../../lib/services';
 import { TSupportedThemes } from '../../theme';
 import { ChatsStackParamList } from '../../stacks/types';
 import { EventTypes } from '../EmojiPicker/interfaces';
+import EmojiSearchbar from './EmojiSearchbar';
+import shortnameToUnicode from '../../lib/methods/helpers/shortnameToUnicode';
 
 require('./EmojiKeyboard');
 
@@ -130,6 +133,8 @@ interface IMessageBoxState {
 	tshow: boolean;
 	mentionLoading: boolean;
 	permissionToUpload: boolean;
+	showEmojiSearchbar: boolean;
+	searchedEmojis: any[];
 }
 
 class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
@@ -161,6 +166,8 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 
 	private typingTimeout: any;
 
+	private emojiSearchbarRef: any;
+
 	static defaultProps = {
 		message: {
 			id: ''
@@ -184,11 +191,14 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 			command: {},
 			tshow: this.sendThreadToChannel,
 			mentionLoading: false,
-			permissionToUpload: true
+			permissionToUpload: true,
+			showEmojiSearchbar: false,
+			searchedEmojis: []
 		};
 		this.text = '';
 		this.selection = { start: 0, end: 0 };
 		this.focused = false;
+		this.emojiSearchbarRef = React.createRef<RNTextInput>();
 
 		const libPickerLabels = {
 			cropperChooseText: I18n.t('Choose'),
@@ -327,7 +337,9 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 			tshow,
 			mentionLoading,
 			trackingType,
-			permissionToUpload
+			permissionToUpload,
+			showEmojiSearchbar,
+			searchedEmojis
 		} = this.state;
 
 		const {
@@ -395,6 +407,12 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 		if (nextProps.goToCannedResponses !== goToCannedResponses) {
 			return true;
 		}
+		if (nextState.showEmojiSearchbar !== showEmojiSearchbar) {
+			return true;
+		}
+		if (!dequal(nextState.searchedEmojis, searchedEmojis)) {
+			return true;
+		}
 		return false;
 	}
 
@@ -578,28 +596,40 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 		}
 	};
 
-	onItemSelected = (keyboardId: string, params: { eventType: EventTypes; emoji: string }) => {
+	onKeyboardItemSelected = (keyboardId: string, params: { eventType: EventTypes; emoji: string }) => {
 		const { eventType, emoji } = params;
 		const { text } = this;
 		let newText = '';
 		// if messagebox has an active cursor
 		const { start, end } = this.selection;
 		const cursor = Math.max(start, end);
-		if (eventType === EventTypes.BACKSPACE_PRESSED) {
-			let charsToRemove = 1;
-			if (cursor > 1) {
+		let newCursor;
+
+		switch (eventType) {
+			case EventTypes.BACKSPACE_PRESSED:
+				let charsToRemove = 1;
 				const emojiRegex = /\u00a9|\u00ae|[\u2000-\u3300]|\ud83c[\ud000-\udfff]|\ud83d[\ud000-\udfff]|\ud83e[\ud000-\udfff]/;
-				const lastEmoji = text.substr(cursor - 2, cursor);
+				const lastEmoji = text.substr(text.length - 2, text.length);
+				// Check if last character is an emoji
 				if (emojiRegex.test(lastEmoji)) charsToRemove = 2;
-			}
-			newText = text.substr(0, cursor - charsToRemove);
-			this.setInput(newText, { start: cursor - charsToRemove, end: cursor - charsToRemove });
-			this.setShowSend(newText !== '');
-		} else if (eventType === EventTypes.EMOJI_PRESSED) {
-			newText = `${text.substr(0, cursor)}${emoji}${text.substr(cursor)}`;
-			const newCursor = cursor + emoji.length;
-			this.setInput(newText, { start: newCursor, end: newCursor });
-			this.setShowSend(true);
+				newText = text.substr(0, text.length - charsToRemove);
+				newCursor = cursor - charsToRemove;
+				this.setInput(newText, { start: newCursor, end: newCursor });
+				this.setShowSend(newText !== '');
+				break;
+			case EventTypes.EMOJI_PRESSED:
+				newText = `${text.substr(0, cursor)}${emoji}${text.substr(cursor)}`;
+				newCursor = cursor + emoji.length;
+				this.setInput(newText, { start: newCursor, end: newCursor });
+				this.setShowSend(true);
+				break;
+			case EventTypes.SEARCH_PRESSED:
+				this.setState({ showEmojiKeyboard: false, showEmojiSearchbar: true }, () => {
+					this.emojiSearchbarRef.current.focus();
+				});
+				break;
+			default:
+			// Do nothing
 		}
 	};
 
@@ -893,7 +923,7 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 
 	openEmoji = () => {
 		logEvent(events.ROOM_OPEN_EMOJI);
-		this.setState({ showEmojiKeyboard: true });
+		this.setState({ showEmojiKeyboard: true, showEmojiSearchbar: false });
 	};
 
 	recordingCallback = (recording: any) => {
@@ -1095,6 +1125,55 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 		);
 	};
 
+	searchEmojis = debounce(async (keyword: any) => {
+		const db = database.active;
+		const customEmojisCollection = db.get('custom_emojis');
+		const likeString = sanitizeLikeString(keyword);
+		const whereClause = [];
+		if (likeString) {
+			whereClause.push(Q.where('name', Q.like(`${likeString}%`)));
+		}
+		let customEmojis = await customEmojisCollection.query(...whereClause).fetch();
+		customEmojis = customEmojis.slice(0, MAX_EMOJIS_TO_DISPLAY / 2);
+		const filteredEmojis = emojis.filter(emoji => emoji.indexOf(keyword) !== -1).slice(0, MAX_EMOJIS_TO_DISPLAY / 2);
+		const mergedEmojis = [...customEmojis, ...filteredEmojis].slice(0, MAX_EMOJIS_TO_DISPLAY);
+		this.setState({ searchedEmojis: mergedEmojis });
+	}, 300);
+
+	renderEmojiSearchbar = () => {
+		const { showEmojiSearchbar, searchedEmojis } = this.state;
+		const { baseUrl } = this.props;
+		const onChangeText = (value: string) => {
+			this.searchEmojis(value);
+		};
+		const onEmojiSelected = (emoji: any) => {
+			let selectedEmoji;
+			if (emoji.name) {
+				selectedEmoji = `:${emoji.name}:`;
+			} else {
+				selectedEmoji = shortnameToUnicode(`:${emoji}:`);
+			}
+			const { text } = this;
+			let newText = '';
+			const { start, end } = this.selection;
+			const cursor = Math.max(start, end);
+			newText = `${text.substr(0, cursor)}${selectedEmoji}${text.substr(cursor)}`;
+			const newCursor = cursor + selectedEmoji.length;
+			this.setInput(newText, { start: newCursor, end: newCursor });
+			this.setShowSend(true);
+		};
+		return showEmojiSearchbar ? (
+			<EmojiSearchbar
+				ref={this.emojiSearchbarRef}
+				openEmoji={this.openEmoji}
+				onChangeText={onChangeText}
+				emojis={searchedEmojis}
+				baseUrl={baseUrl}
+				onEmojiSelected={onEmojiSelected}
+			/>
+		) : null;
+	};
+
 	renderContent = () => {
 		const {
 			recording,
@@ -1209,6 +1288,7 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 						{recordAudio}
 					</View>
 					{this.renderSendToChannel()}
+					{this.renderEmojiSearchbar()}
 				</View>
 				{children}
 			</>
@@ -1236,7 +1316,7 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 					kbComponent={showEmojiKeyboard ? 'EmojiKeyboard' : null}
 					kbInitialProps={{ theme }}
 					onKeyboardResigned={this.onKeyboardResigned}
-					onItemSelected={this.onItemSelected}
+					onItemSelected={this.onKeyboardItemSelected}
 					trackInteractive
 					requiresSameParentToManageScrollView
 					addBottomView
diff --git a/app/i18n/locales/en.json b/app/i18n/locales/en.json
index 5f0c0c134..25e1066c2 100644
--- a/app/i18n/locales/en.json
+++ b/app/i18n/locales/en.json
@@ -482,6 +482,7 @@
   "Search_Messages": "Search Messages",
   "Search": "Search",
   "Search_by": "Search by",
+  "Search_emoji": "Search emoji",
   "Search_global_users": "Search for global users",
   "Search_global_users_description": "If you turn-on, you can search for any user from others companies or servers.",
   "Seconds": "{{second}} seconds",