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packages/rn-tester/js/examples/KeyboardEventsExample/KeyboardEventsExample.js

Lines changed: 50 additions & 55 deletions
Original file line numberDiff line numberDiff line change
@@ -42,7 +42,13 @@ function formatKeyEvent(event: any) {
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return `${modifierPrefix}${event.key}`;
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}
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45-
function EventLog({eventLog, onClear}: {eventLog: Array<string>, onClear: () => void}) {
45+
function EventLog({
46+
eventLog,
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onClear,
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}: {
49+
eventLog: Array<string>,
50+
onClear: () => void,
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}) {
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return (
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<View testID="keyboard_events_example_console" style={styles.eventLogBox}>
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<View style={styles.logHeaderRow}>
@@ -171,73 +177,62 @@ function KeyboardEventExample(): React.Node {
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172178
function isKeyBlocked(event: any, keyEvents: Array<any>) {
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return keyEvents.some(({key, metaKey, ctrlKey, altKey, shiftKey}) => {
174-
return event.key === key &&
180+
return (
181+
event.key === key &&
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(metaKey ?? event.metaKey) === event.metaKey &&
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(ctrlKey ?? event.ctrlKey) === event.ctrlKey &&
177184
(altKey ?? event.altKey) === event.altKey &&
178-
(shiftKey ?? event.shiftKey) === event.shiftKey;
185+
(shiftKey ?? event.shiftKey) === event.shiftKey
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);
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});
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}
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182-
const handleSingleLineKeyDown = React.useCallback(
183-
(e: KeyEvent) => {
184-
const keyDownEvents = [
185-
{key: 'g'},
186-
{key: 'Escape'},
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{key: 'Enter'},
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{key: 'ArrowLeft'},
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];
190-
const isBlocked = isKeyBlocked(e.nativeEvent, keyDownEvents);
191-
const suffix = isBlocked ? ' (blocked)' : '';
192-
const keyDisplay = formatKeyEvent(e.nativeEvent);
193-
appendEvent(`keyDown: ${keyDisplay}${suffix}`, 'Single-line TextInput');
194-
},
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[],
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);
197-
198-
const handleSingleLineKeyUp = React.useCallback(
199-
(e: KeyEvent) => {
200-
const keyUpEvents = [{key: 'c'}, {key: 'd'}];
201-
const isBlocked = isKeyBlocked(e.nativeEvent, keyUpEvents);
202-
const suffix = isBlocked ? ' (blocked)' : '';
203-
const keyDisplay = formatKeyEvent(e.nativeEvent);
204-
appendEvent(`keyUp: ${keyDisplay}${suffix}`, 'Single-line TextInput');
205-
},
206-
[],
207-
);
190+
const handleSingleLineKeyDown = React.useCallback((e: KeyEvent) => {
191+
const keyDownEvents = [
192+
{key: 'g'},
193+
{key: 'Escape'},
194+
{key: 'Enter'},
195+
{key: 'ArrowLeft'},
196+
];
197+
const isBlocked = isKeyBlocked(e.nativeEvent, keyDownEvents);
198+
const suffix = isBlocked ? ' (blocked)' : '';
199+
const keyDisplay = formatKeyEvent(e.nativeEvent);
200+
appendEvent(`keyDown: ${keyDisplay}${suffix}`, 'Single-line TextInput');
201+
}, []);
208202

209-
const handleMultiLineKeyDown = React.useCallback(
210-
(e: KeyEvent) => {
211-
const keyDownEvents = [
212-
{key: 'ArrowRight'},
213-
{key: 'ArrowDown'},
214-
{key: 'Enter', metaKey: true},
215-
];
216-
const isBlocked = isKeyBlocked(e.nativeEvent, keyDownEvents);
217-
const suffix = isBlocked ? ' (blocked)' : '';
218-
const keyDisplay = formatKeyEvent(e.nativeEvent);
219-
appendEvent(`keyDown: ${keyDisplay}${suffix}`, 'Multi-line TextInput');
220-
},
221-
[],
222-
);
223-
224-
const handleMultiLineKeyUp = React.useCallback(
225-
(e: KeyEvent) => {
226-
const keyUpEvents = [{key: 'Escape'}, {key: 'Enter'}];
227-
const isBlocked = isKeyBlocked(e.nativeEvent, keyUpEvents);
228-
const suffix = isBlocked ? ' (blocked)' : '';
229-
const keyDisplay = formatKeyEvent(e.nativeEvent);
230-
appendEvent(`keyUp: ${keyDisplay}${suffix}`, 'Multi-line TextInput');
231-
},
232-
[],
233-
);
203+
const handleSingleLineKeyUp = React.useCallback((e: KeyEvent) => {
204+
const keyUpEvents = [{key: 'c'}, {key: 'd'}];
205+
const isBlocked = isKeyBlocked(e.nativeEvent, keyUpEvents);
206+
const suffix = isBlocked ? ' (blocked)' : '';
207+
const keyDisplay = formatKeyEvent(e.nativeEvent);
208+
appendEvent(`keyUp: ${keyDisplay}${suffix}`, 'Single-line TextInput');
209+
}, []);
234210

211+
const handleMultiLineKeyDown = React.useCallback((e: KeyEvent) => {
212+
const keyDownEvents = [
213+
{key: 'ArrowRight'},
214+
{key: 'ArrowDown'},
215+
{key: 'Enter', metaKey: true},
216+
];
217+
const isBlocked = isKeyBlocked(e.nativeEvent, keyDownEvents);
218+
const suffix = isBlocked ? ' (blocked)' : '';
219+
const keyDisplay = formatKeyEvent(e.nativeEvent);
220+
appendEvent(`keyDown: ${keyDisplay}${suffix}`, 'Multi-line TextInput');
221+
}, []);
235222

223+
const handleMultiLineKeyUp = React.useCallback((e: KeyEvent) => {
224+
const keyUpEvents = [{key: 'Escape'}, {key: 'Enter'}];
225+
const isBlocked = isKeyBlocked(e.nativeEvent, keyUpEvents);
226+
const suffix = isBlocked ? ' (blocked)' : '';
227+
const keyDisplay = formatKeyEvent(e.nativeEvent);
228+
appendEvent(`keyUp: ${keyDisplay}${suffix}`, 'Multi-line TextInput');
229+
}, []);
236230

237231
return (
238232
<View style={{marginTop: 10}}>
239233
<Text style={styles.description}>
240-
Examples of keyboard event handling with keyDownEvents and keyUpEvents arrays. Use to suppress native handling of specific keys.
234+
Examples of keyboard event handling with keyDownEvents and keyUpEvents
235+
arrays. Use to suppress native handling of specific keys.
241236
</Text>
242237

243238
<View style={styles.inputContainer}>

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