37 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			TypeScript
		
	
	
			
		
		
	
	
			37 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			TypeScript
		
	
	
| /*
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| Copyright 2021 The Matrix.org Foundation C.I.C.
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| 
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| Licensed under the Apache License, Version 2.0 (the "License");
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| you may not use this file except in compliance with the License.
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| You may obtain a copy of the License at
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| 
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|     http://www.apache.org/licenses/LICENSE-2.0
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| 
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| Unless required by applicable law or agreed to in writing, software
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| distributed under the License is distributed on an "AS IS" BASIS,
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| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| See the License for the specific language governing permissions and
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| limitations under the License.
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| */
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| 
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| import { useState } from "react";
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| 
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| export const useLocalEcho = <T>(
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|     currentFactory: () => T,
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|     setterFn: (value: T) => Promise<unknown>,
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|     errorFn: (error: Error) => void,
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| ): [value: T, handler: (value: T) => void] => {
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|     const [value, setValue] = useState(currentFactory);
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|     const handler = async (value: T) => {
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|         setValue(value);
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|         try {
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|             await setterFn(value);
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|         } catch (e) {
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|             setValue(currentFactory());
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|             errorFn(e);
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|         }
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|     };
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| 
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|     return [value, handler];
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| };
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