fix: NavBottomFAB position (#5555)

app/containers/MessageComposer/MessageComposer.tsx

@@ -30,6 +30,7 @@ import log from '../../lib/methods/helpers/log';
 import { prepareQuoteMessage } from './helpers';
 import { RecordAudio } from './components/RecordAudio';
 import { useKeyboardListener } from './hooks';
+import { emitter } from '../../lib/methods/helpers/emitter';
 
 const styles = StyleSheet.create({
 	container: {
@@ -193,6 +194,7 @@ export const MessageComposer = ({
 
 	const onHeightChanged = (height: number) => {
 		setTrackingViewHeight(height);
+		emitter.emit(`setComposerHeight${tmid ? 'Thread' : ''}`, height);
 	};
 
 	const backgroundColor = action === 'edit' ? colors.statusBackgroundWarning2 : colors.surfaceLight;

app/containers/MessageComposer/components/ComposerInput.tsx

@@ -16,7 +16,7 @@ import { getRoomTitle, parseJson } from '../../../lib/methods/helpers';
 import { MAX_HEIGHT, MIN_HEIGHT, NO_CANNED_RESPONSES, MARKDOWN_STYLES } from '../constants';
 import database from '../../../lib/database';
 import Navigation from '../../../lib/navigation/appNavigation';
-import { emitter } from '../emitter';
+import { emitter } from '../../../lib/methods/helpers/emitter';
 import { useRoomContext } from '../../../views/RoomView/context';
 import { getMessageById } from '../../../lib/database/services/Message';
 import { generateTriggerId } from '../../../lib/methods';

app/containers/MessageComposer/components/Toolbar/Default.tsx

@@ -3,7 +3,7 @@ import React, { ReactElement } from 'react';
 import { ActionsButton, BaseButton } from '..';
 import { useMessageComposerApi } from '../../context';
 import { Gap } from '../Gap';
-import { emitter } from '../../emitter';
+import { emitter } from '../../../../lib/methods/helpers/emitter';
 import { useRoomContext } from '../../../../views/RoomView/context';
 
 export const Default = (): ReactElement | null => {

app/containers/MessageComposer/components/Toolbar/Markdown.tsx

@@ -4,7 +4,7 @@ import { BaseButton } from '..';
 import { useMessageComposerApi } from '../../context';
 import { Gap } from '../Gap';
 import { TMarkdownStyle } from '../../interfaces';
-import { emitter } from '../../emitter';
+import { emitter } from '../../../../lib/methods/helpers/emitter';
 
 export const Markdown = (): ReactElement => {
 	const { setMarkdownToolbar } = useMessageComposerApi();

app/containers/MessageComposer/emitter.ts

@@ -1,14 +0,0 @@
-import mitt from 'mitt';
-
-import { TMarkdownStyle } from './interfaces';
-
-type Events = {
-	toolbarMention: undefined;
-	addMarkdown: {
-		style: TMarkdownStyle;
-	};
-};
-
-export const emitter = mitt<Events>();
-
-emitter.on('*', (type, e) => console.log(type, e));

app/containers/MessageComposer/hooks/useKeyboardListener.ts

@@ -1,26 +1,37 @@
 import { MutableRefObject, useEffect } from 'react';
 import { Keyboard } from 'react-native';
+import { useIsFocused } from '@react-navigation/native';
 
 import { useMessageComposerApi } from '../context';
 import { ITrackingView } from '../interfaces';
+import { TKeyEmitterEvent, emitter } from '../../../lib/methods/helpers/emitter';
+import { useRoomContext } from '../../../views/RoomView/context';
 
 export const useKeyboardListener = (ref: MutableRefObject<ITrackingView>) => {
 	const { setKeyboardHeight } = useMessageComposerApi();
+	const { tmid } = useRoomContext();
+	const isFocused = useIsFocused();
 	useEffect(() => {
+		if (!isFocused) {
+			return;
+		}
+		const keyboardEvent: TKeyEmitterEvent = `setKeyboardHeight${tmid ? 'Thread' : ''}`;
 		const showListener = Keyboard.addListener('keyboardWillShow', async () => {
 			if (ref?.current) {
 				const props = await ref.current.getNativeProps();
 				setKeyboardHeight(props.keyboardHeight);
+				emitter.emit(keyboardEvent, props.keyboardHeight);
 			}
 		});
 
 		const hideListener = Keyboard.addListener('keyboardWillHide', () => {
 			setKeyboardHeight(0);
+			emitter.emit(keyboardEvent, 0);
 		});
 
 		return () => {
 			showListener.remove();
 			hideListener.remove();
 		};
-	}, [ref, setKeyboardHeight]);
+	}, [ref, setKeyboardHeight, tmid, isFocused]);
 };

app/lib/methods/helpers/emitter.ts

@@ -0,0 +1,20 @@
+import mitt from 'mitt';
+
+import { TMarkdownStyle } from '../../../containers/MessageComposer/interfaces';
+
+export type TEmitterEvents = {
+	toolbarMention: undefined;
+	addMarkdown: {
+		style: TMarkdownStyle;
+	};
+	setKeyboardHeight: number;
+	setKeyboardHeightThread: number;
+	setComposerHeight: number;
+	setComposerHeightThread: number;
+};
+
+export type TKeyEmitterEvent = keyof TEmitterEvents;
+
+export const emitter = mitt<TEmitterEvents>();
+
+emitter.on('*', (type, e) => console.log(type, e));

app/lib/methods/helpers/events.ts

@@ -42,6 +42,9 @@ class EventEmitter {
 		}
 	}
 
+	/**
+	 * @deprecated use lib/methods/helpers/emitter.ts
+	 */
 	emit(event: string, ...args: TEventEmitterEmmitArgs[]) {
 		if (typeof this.events[event] === 'object') {
 			this.events[event].forEach((listener: Function) => {

app/lib/methods/helpers/index.ts

@@ -16,4 +16,5 @@ export * from './isValidEmail';
 export * from './random';
 export * from './image';
 export * from './askAndroidMediaPermissions';
+export * from './emitter';
 export * from './parseJson';

app/views/RoomView/List/components/NavBottomFAB.tsx

@@ -1,14 +1,16 @@
-import React from 'react';
+import React, { memo } from 'react';
-import { StyleSheet, View, Platform } from 'react-native';
+import { StyleSheet, View } from 'react-native';
 
 import { CustomIcon } from '../../../../containers/CustomIcon';
 import { useTheme } from '../../../../theme';
 import Touch from '../../../../containers/Touch';
+import { useNavBottomStyle } from '../hooks';
+import { EDGE_DISTANCE } from '../constants';
 
 const styles = StyleSheet.create({
 	container: {
 		position: 'absolute',
-		right: 15
+		right: EDGE_DISTANCE
 	},
 	button: {
 		borderRadius: 25
@@ -23,39 +25,17 @@ const styles = StyleSheet.create({
 	}
 });
 
-const NavBottomFAB = ({
+const NavBottomFAB = memo(
-	visible,
+	({ visible, onPress, isThread }: { visible: boolean; onPress: Function; isThread: boolean }): React.ReactElement | null => {
-	onPress,
-	isThread
-}: {
-	visible: boolean;
-	onPress: Function;
-	isThread: boolean;
-}): React.ReactElement | null => {
 		const { colors } = useTheme();
+		const positionStyle = useNavBottomStyle(isThread);
 
 		if (!visible) {
 			return null;
 		}
 
 		return (
-		<View
+			<View style={[styles.container, positionStyle]} testID='nav-jump-to-bottom'>
-			style={[
-				styles.container,
-				{
-					...Platform.select({
-						ios: {
-							bottom: 100 + (isThread ? 40 : 0)
-						},
-						android: {
-							top: 15,
-							scaleY: -1
-						}
-					})
-				}
-			]}
-			testID='nav-jump-to-bottom'
-		>
 				<Touch onPress={() => onPress()} style={[styles.button, { backgroundColor: colors.backgroundColor }]}>
 					<View style={[styles.content, { borderColor: colors.borderColor }]}>
 						<CustomIcon name='chevron-down' color={colors.auxiliaryTintColor} size={36} />
@@ -63,6 +43,7 @@ const NavBottomFAB = ({
 				</Touch>
 			</View>
 		);
-};
+	}
+);
 
 export default NavBottomFAB;

app/views/RoomView/List/constants.ts

@@ -5,3 +5,5 @@ export const VIEWABILITY_CONFIG = {
 };
 
 export const SCROLL_LIMIT = 200;
+
+export const EDGE_DISTANCE = 15;

app/views/RoomView/List/hooks/index.ts

@@ -1,2 +1,3 @@
+export * from './useNavBottomStyle';
 export * from './useMessages';
 export * from './useScroll';

app/views/RoomView/List/hooks/useNavBottomStyle/index.ts

@@ -0,0 +1 @@
+export * from './useNavBottomStyle';

app/views/RoomView/List/hooks/useNavBottomStyle/useNavBottomStyle.android.ts

@@ -0,0 +1,8 @@
+import { ViewStyle } from 'react-native';
+
+import { EDGE_DISTANCE } from '../../constants';
+
+export const useNavBottomStyle = (): ViewStyle => ({
+	top: EDGE_DISTANCE,
+	scaleY: -1
+});

app/views/RoomView/List/hooks/useNavBottomStyle/useNavBottomStyle.ts

@@ -0,0 +1,36 @@
+import { useEffect, useState } from 'react';
+import { ViewStyle } from 'react-native';
+import { useSafeAreaInsets } from 'react-native-safe-area-context';
+
+import { TKeyEmitterEvent, emitter } from '../../../../../lib/methods/helpers';
+import { EDGE_DISTANCE } from '../../constants';
+
+export const useNavBottomStyle = (isThread: boolean): ViewStyle => {
+	const [keyboardHeight, setKeyboardHeight] = useState(0);
+	const [composerHeight, setComposerHeight] = useState(0);
+	const { bottom } = useSafeAreaInsets();
+
+	useEffect(() => {
+		const keyboardEvent: TKeyEmitterEvent = `setKeyboardHeight${isThread ? 'Thread' : ''}`;
+		const composerEvent: TKeyEmitterEvent = `setComposerHeight${isThread ? 'Thread' : ''}`;
+		emitter.on(keyboardEvent, height => {
+			if (height !== keyboardHeight) {
+				setKeyboardHeight(height);
+			}
+		});
+		emitter.on(composerEvent, height => {
+			if (height !== composerHeight) {
+				setComposerHeight(height);
+			}
+		});
+
+		return () => {
+			emitter.off(keyboardEvent);
+			emitter.off(composerEvent);
+		};
+	}, [isThread, keyboardHeight, composerHeight]);
+
+	return {
+		bottom: keyboardHeight + composerHeight + (keyboardHeight ? 0 : bottom) + EDGE_DISTANCE
+	};
+};

app/views/RoomView/List/hooks/useScroll.ts

@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from 'react';
+import { useCallback, useEffect, useRef, useState } from 'react';
 import { ViewToken, ViewabilityConfigCallbackPairs } from 'react-native';
 
 import { IListContainerRef, IListProps, TListRef, TMessagesIdsRef } from '../definitions';
@@ -20,9 +20,9 @@ export const useScroll = ({ listRef, messagesIds }: { listRef: TListRef; message
 		[]
 	);
 
-	const jumpToBottom = () => {
+	const jumpToBottom = useCallback(() => {
 		listRef.current?.scrollToOffset({ offset: -100 });
-	};
+	}, [listRef]);
 
 	const onViewableItemsChanged: IListProps['onViewableItemsChanged'] = ({ viewableItems: vi }) => {
 		viewableItems.current = vi;