react-google-maps getting bigger when clicked

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If the map from react-google-maps gets larger when clicked, it might be caused by a CSS issue or unintended changes in the map container's style or parent component. Here's a breakdown of the possible causes and solutions:

1. CSS or Layout Issues

Cause: The map container or its parent might have styles that change on interaction (e.g., :focus, :active, or event listeners that modify dimensions).

Solution:

Inspect the map container element in your browser's Developer Tools to see if any styles are applied on click.

Add explicit styles to prevent unwanted resizing. For example:

.map-container {

  width: 100%;

  height: 100%;

  position: relative;

  overflow: hidden;

}

.map-container * {

  box-sizing: border-box;

}



Ensure the container’s dimensions are fixed (e.g., height: 500px; width: 100%).









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2. Event Propagation

Cause: Clicking on the map might trigger event handlers that modify the size of the container or its parent.

Solution: Use stopPropagation in your event handlers to prevent unintended side effects:

const onMapClick = (event) => {

  event.stopPropagation();

  // Handle click event here

};







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3. Unexpected State Changes

Cause: Clicking the map may trigger a React state change that affects its parent container.

Solution: Check your React component’s state or props to ensure no onClick handlers or state updates alter the layout. For example:

const [isClicked, setIsClicked] = useState(false);



const handleMapClick = () => {

  setIsClicked(true); // Avoid this unless necessary

};



return (

  <div className={isClicked ? "clicked" : ""} style={{ width: "100%", height: "500px" }}>

    <GoogleMap

      onClick={handleMapClick}

      defaultZoom={10}

      defaultCenter={{ lat: -34.397, lng: 150.644 }}

    />

  </div>

);







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4. Third-Party Library Behavior

Cause: react-google-maps or the underlying Google Maps API might be causing a redraw or layout recalculation on click.

Solution: Ensure you’re using the latest version of react-google-maps or switch to a maintained alternative like @react-google-maps/api, as react-google-maps is deprecated.


Example with @react-google-maps/api:

import { GoogleMap, useLoadScript } from "@react-google-maps/api";



const MapComponent = () => {

  const { isLoaded } = useLoadScript({

    googleMapsApiKey: "YOUR_API_KEY",

  });



  if (!isLoaded) return <div>Loading...</div>;



  return (

    <GoogleMap

      mapContainerStyle={{ width: "100%", height: "500px" }}

      zoom={10}

      center={{ lat: -34.397, lng: 150.644 }}

    />

  );

};





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5. Debugging Tips

Open the browser's Developer Tools, go to the Elements tab, and inspect the styles of the map container before and after clicking.

Check the Console for any JavaScript errors or warnings.

Temporarily disable event listeners or styles one by one to pinpoint the issue.