flagon-io/g1t

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The phone app: Chat in full with phone notifications, plus Code and Customize (#4)2d ago		1	import * as Haptics from "expo-haptics";
		2	import { ArrowUp } from "lucide-react-native";
		3	import { useEffect, useState } from "react";
		4	import { Keyboard, Pressable, StyleSheet, TextInput, View } from "react-native";
		5	import { useSafeAreaInsets } from "react-native-safe-area-context";
		6
		7	import { radius, space, useColors } from "@/theme";
		8
		9	/** What was typed and not sent, per conversation, while the app runs. */
		10	const drafts = new Map<string, string>();
		11
		12	/**
		13	* The box at the bottom of a conversation. Enter makes a new line, as on
		14	* a phone; the arrow sends. Typing tells the others (at most every 3 s).
		15	*/
		16	export function Composer({
		17	draftKey,
		18	placeholder,
		19	onSend,
		20	onTyping,
		21	onFocus,
		22	}: {
		23	draftKey: string;
		24	placeholder: string;
		25	onSend: (body: string) => void;
		26	onTyping: () => void;
		27	/** The box was tapped into: the conversation goes to its newest message. */
		28	onFocus?: () => void;
		29	}) {
		30	const colors = useColors();
		31	const insets = useSafeAreaInsets();
		32	const [text, setText] = useState(() => drafts.get(draftKey) ?? "");
		33	const ready = text.trim().length > 0;
		34	// With the keyboard up the box sits on it; the home indicator's room is only for when it is down.
		35	const [keyboard, setKeyboard] = useState(false);
		36	useEffect(() => {
		37	const shown = Keyboard.addListener("keyboardDidShow", () => setKeyboard(true));
		38	const hidden = Keyboard.addListener("keyboardDidHide", () => setKeyboard(false));
		39	return () => {
		40	shown.remove();
		41	hidden.remove();
		42	};
		43	}, []);
		44
		45	const send = () => {
		46	const body = text.trim();
		47	if (!body) return;
		48	void Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light).catch(() => undefined);
		49	onSend(body);
		50	setText("");
		51	drafts.delete(draftKey);
		52	};
		53
		54	return (
		55	<View style={[styles.bar, { borderTopColor: colors.line, backgroundColor: colors.surface, paddingBottom: keyboard ? space.sm : Math.max(insets.bottom, space.sm) }]}>
		56	<TextInput
		57	value={text}
		58	onChangeText={(next) => {
		59	setText(next);
		60	drafts.set(draftKey, next);
		61	if (next.length > 0) onTyping();
		62	}}
		63	placeholder={placeholder}
		64	placeholderTextColor={colors.faint}
		65	onFocus={onFocus}
		66	multiline
		67	style={[styles.input, { color: colors.fg, backgroundColor: colors.bg, borderColor: colors.lineStrong }]}
		68	/>
		69	<Pressable
		70	accessibilityRole="button"
		71	accessibilityLabel="Send"
		72	onPress={send}
		73	disabled={!ready}
		74	style={[styles.send, { backgroundColor: ready ? colors.accent : colors.raised }]}
		75	>
		76	<ArrowUp size={20} color={ready ? colors.onAccent : colors.faint} strokeWidth={2.5} />
		77	</Pressable>
		78	</View>
		79	);
		80	}
		81
		82	const styles = StyleSheet.create({
		83	bar: { flexDirection: "row", alignItems: "flex-end", gap: space.sm, paddingHorizontal: space.md, paddingTop: space.sm, borderTopWidth: StyleSheet.hairlineWidth },
		84	input: { flex: 1, minHeight: 40, maxHeight: 160, borderRadius: radius.lg, borderWidth: 1, paddingHorizontal: space.md, paddingTop: 10, paddingBottom: 10, fontSize: 15 },
		85	send: { width: 40, height: 40, borderRadius: 20, alignItems: "center", justifyContent: "center" },
		86	});

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