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Update TextInput.js #550

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@StephenTANM StephenTANM commented Dec 4, 2020

Fix for onFocus & onBlur silently failing. Reproduction example below...

import { TextInput } from "@shoutem/ui";

interface InitialState {
  focused: Boolean;
}
const textInput = React.createRef();

const Input = (props: any) => {

const [state, setstate] = useState<InitialState>({
    focused: false,
  });

  const onFocus = () => {
    setstate((oldstate) => ({
      ...state,
      focused: true,
    }));
  };

  const onBlur = () => {
    setstate((oldstate) => ({
      ...state,
      focused: false,
    }));
  };

  return (
    <TextInput
      onFocus={onFocus}
      onBlur={onBlur}
      autoFocus
    />
}

Fix for onFocus & onBlur silently failing when using handling both methods
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@Definitely-Not-Vlad Definitely-Not-Vlad left a comment

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Great thinking, somehow it didn't occur to me that people would want to include their own specific onFocus and onBlur. Just an oversight.

@@ -22,12 +22,13 @@ class TextInput extends PureComponent {

handleBlur() {
this.setState({ isFocused: false });
this.props.onBlur()
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Destructure onBlur from this.props on the first line of the method with a fallback to null if it isn't set. This should be followed by a newline. Then check if onBlur is truthy and run it:

handleBlur() {
  const { onBlur = null } = this.props;

  this.setState({ isFocused: false });
  if (onBlur) {
    onBlur();
  }
}

}

handleFocus() {
this.setState({ isFocused: true });
this.props.onFocus()
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Destructure onFocus from this.props on the first line of the method with a fallback to null if it isn't set. This should be followed by a newline. Then check if onFocus is truthy and run it:

handleFocus() {
  const { onFocus = null } = this.props;

  this.setState({ isFocused: true });
  if (onFocus) {
    onFocus();
  }
}

Comment on lines 31 to 32
}

render() {
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Reintroduce this newline between handleFocus and render, we separate all methods with a newline.

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2 participants