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Experimenting with legend list #7

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f6f72e0
Experimenting with legend list
snuutti Apr 25, 2025
d6fcb5b
Updates
snuutti May 29, 2025
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14 changes: 9 additions & 5 deletions app/(app)/server/[id]/index.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ import Animated, {
import { useKeyboardHandler } from "react-native-keyboard-controller";
import { useBottomTabBarHeight } from "@react-navigation/bottom-tabs";
import { useTranslation } from "react-i18next";
import { FlashList } from "@shopify/flash-list";
import { LegendList } from "@legendapp/list";
import MaterialCommunityIcons from "@expo/vector-icons/MaterialCommunityIcons";
import ConsoleText from "@/components/server/console/ConsoleText";
import TextInput from "@/components/ui/TextInput";
Expand Down Expand Up @@ -77,7 +77,7 @@ export default function ConsoleScreen() {
);
const { server } = useServer();
const [lines, setLines] = useState<string[]>([]);
const { listRef, isAtBottom, listMounted, handleScroll, handleContentSizeChange, goToBottom } = useAutoScroll<string>({ data: lines, inverted: true });
const { listRef, isAtBottom, listMounted, handleScroll, handleContentSizeChange, goToBottom } = useAutoScroll<string>({ data: lines, inverted: false });
const chevronVisible = useSharedValue(0);
const [initialScroll, setInitialScroll] = useState(true);
const [hasGotItems, setHasGotItems] = useState(false);
Expand Down Expand Up @@ -155,7 +155,7 @@ export default function ConsoleScreen() {
newLines.pop();
}

setLines((lines) => [...newLines.reverse(), ...lines]);
setLines((lines) => [...lines, ...newLines]);
setHasGotItems(true);
};

Expand All @@ -172,16 +172,20 @@ export default function ConsoleScreen() {
<View style={style.container}>
{server?.hasScope("server.console") && (
<>
<FlashList
<LegendList
ref={listRef}
onScroll={handleScroll}
onContentSizeChange={handleContentSizeChange}
data={lines}
keyExtractor={(_, index) => index.toString()}
renderItem={({ item }) => <ConsoleText text={item} />}
estimatedItemSize={30}
inverted={true}
recycleItems={true}
alignItemsAtEnd={true}
maintainScrollAtEnd={true}
maintainScrollAtEndThreshold={0.1}
showsVerticalScrollIndicator={false}
waitForInitialLayout={true}
/>

<TouchableOpacity style={style.clearConsole} onPress={clearConsole}>
Expand Down
7 changes: 6 additions & 1 deletion bun.lock
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
"@formatjs/intl-locale": "^4.2.11",
"@gorhom/bottom-sheet": "^5.1.5",
"@hookform/resolvers": "^5.0.1",
"@legendapp/list": "^1.0.14",
"@react-native-async-storage/async-storage": "2.1.2",
"@react-native-community/slider": "4.5.6",
"@react-native-menu/menu": "^1.2.3",
Expand Down Expand Up @@ -528,6 +529,8 @@

"@jsamr/react-native-li": ["@jsamr/react-native-li@2.3.1", "", { "peerDependencies": { "@jsamr/counter-style": "^1.0.0 || ^2.0.0", "react": "*", "react-native": "*" } }, "sha512-Qbo4NEj48SQ4k8FZJHFE2fgZDKTWaUGmVxcIQh3msg5JezLdTMMHuRRDYctfdHI6L0FZGObmEv3haWbIvmol8w=="],

"@legendapp/list": ["@legendapp/list@1.0.14", "", { "dependencies": { "use-sync-external-store": "^1.5.0" }, "peerDependencies": { "react": "*", "react-native": "*" } }, "sha512-/3OWGGFgZWZK8ZvM4bdL18HhkxFEkpC0wEK8hvlLI8IeVxk0z/anKXb5hraijiMwfpDEyD4nDzQQDqtlJ1UVLQ=="],

"@napi-rs/wasm-runtime": ["@napi-rs/wasm-runtime@0.2.9", "", { "dependencies": { "@emnapi/core": "^1.4.0", "@emnapi/runtime": "^1.4.0", "@tybys/wasm-util": "^0.9.0" } }, "sha512-OKRBiajrrxB9ATokgEQoG87Z25c67pCpYcCwmXYX8PBftC9pBfN18gnm/fh1wurSLEKIAt+QRFLFCQISrb66Jg=="],

"@nicolo-ribaudo/chokidar-2": ["@nicolo-ribaudo/chokidar-2@2.1.8-no-fsevents.3", "", {}, "sha512-s88O1aVtXftvp5bCPB7WnmXc5IwOZZ7YPuwNPt+GtOOXpPvad1LfbmjYv+qII7zP6RU2QGnqve27dnLycEnyEQ=="],
Expand Down Expand Up @@ -2358,7 +2361,7 @@

"use-sidecar": ["use-sidecar@1.1.2", "", { "dependencies": { "detect-node-es": "^1.1.0", "tslib": "^2.0.0" }, "peerDependencies": { "@types/react": "^16.9.0 || ^17.0.0 || ^18.0.0", "react": "^16.8.0 || ^17.0.0 || ^18.0.0" }, "optionalPeers": ["@types/react"] }, "sha512-epTbsLuzZ7lPClpz2TyryBfztm7m+28DlEv2ZCQ3MDr5ssiwyOwGH/e5F9CkfWjJ1t4clvI58yF822/GUkjjhw=="],

"use-sync-external-store": ["use-sync-external-store@1.4.0", "", { "peerDependencies": { "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-9WXSPC5fMv61vaupRkCKCxsPxBocVnwakBEkMIHHpkTTg6icbJtg6jzgtLDm4bl3cSHAca52rYWih0k4K3PfHw=="],
"use-sync-external-store": ["use-sync-external-store@1.5.0", "", { "peerDependencies": { "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-Rb46I4cGGVBmjamjphe8L/UnvJD+uPPtTkNvX5mZgqdbavhI4EbgIWJiIHXJ8bc/i9EQGPRh4DwEURJ552Do0A=="],

"utils-merge": ["utils-merge@1.0.1", "", {}, "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA=="],

Expand Down Expand Up @@ -2898,6 +2901,8 @@

"@react-navigation/core/use-latest-callback": ["use-latest-callback@0.2.1", "", { "peerDependencies": { "react": ">=16.8" } }, "sha512-QWlq8Is8BGWBf883QOEQP5HWYX/kMI+JTbJ5rdtvJLmXTIh9XoHIO3PQcmQl8BU44VKxow1kbQUHa6mQSMALDQ=="],

"@react-navigation/core/use-sync-external-store": ["use-sync-external-store@1.4.0", "", { "peerDependencies": { "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0" } }, "sha512-9WXSPC5fMv61vaupRkCKCxsPxBocVnwakBEkMIHHpkTTg6icbJtg6jzgtLDm4bl3cSHAca52rYWih0k4K3PfHw=="],

"@react-navigation/native/nanoid": ["nanoid@3.3.8", "", { "bin": { "nanoid": "bin/nanoid.cjs" } }, "sha512-WNLf5Sd8oZxOm+TzppcYk8gVOgP+l58xNy58D0nbUnOxOWRWvlcCV4kUF7ltmI6PsrLl/BgKEyS4mqsGChFN0w=="],

"@react-navigation/native/use-latest-callback": ["use-latest-callback@0.2.1", "", { "peerDependencies": { "react": ">=16.8" } }, "sha512-QWlq8Is8BGWBf883QOEQP5HWYX/kMI+JTbJ5rdtvJLmXTIh9XoHIO3PQcmQl8BU44VKxow1kbQUHa6mQSMALDQ=="],
Expand Down
16 changes: 4 additions & 12 deletions hooks/useAutoScroll.ts
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Original file line number Diff line number Diff line change
@@ -1,14 +1,13 @@
import { useRef, useState, useEffect } from "react";
import { NativeScrollEvent, NativeSyntheticEvent } from "react-native";
import { FlashList } from "@shopify/flash-list";
import { LegendListRef } from "@legendapp/list";

type AutoScrollHookProps<T> = {
data: T[];
inverted?: boolean;
};

export default function useAutoScroll<T>({ data, inverted }: AutoScrollHookProps<T>) {
const listRef = useRef<FlashList<T>>(null);
const listRef = useRef<LegendListRef>(null);
const [isAtBottom, setIsAtBottom] = useState(true);
const [listMounted, setListMounted] = useState(false);

Expand All @@ -18,15 +17,8 @@ export default function useAutoScroll<T>({ data, inverted }: AutoScrollHookProps
}
}, [data, listMounted, isAtBottom]);

const handleScroll = (event: NativeSyntheticEvent<NativeScrollEvent>) => {
const { layoutMeasurement, contentOffset, contentSize } = event.nativeEvent;
const paddingToBottom = 20;

if (inverted) {
setIsAtBottom(contentOffset.y <= paddingToBottom);
} else {
setIsAtBottom(layoutMeasurement.height + contentOffset.y >= contentSize.height - paddingToBottom);
}
const handleScroll = () => {
setIsAtBottom(listRef.current?.getState().isAtEnd || false);
};

const handleContentSizeChange = () => {
Expand Down
1 change: 1 addition & 0 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@
"@formatjs/intl-locale": "^4.2.11",
"@gorhom/bottom-sheet": "^5.1.5",
"@hookform/resolvers": "^5.0.1",
"@legendapp/list": "^1.0.14",
"@react-native-async-storage/async-storage": "2.1.2",
"@react-native-community/slider": "4.5.6",
"@react-native-menu/menu": "^1.2.3",
Expand Down
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