Zoom without resizing a background-image in reactjs

by vsasikalabe Updated: Jan 24, 2023

In this kit, we're going to see how to zoom without resizing a background-image in reactjs with simple steps.A React component for magnifying an image within its original container. Zoom behavior can be triggered on click or hover and the zoomed image can be moved by dragging on touch devices and either dragging or pan on hover on non-touch devices.The zoom behavior is triggered on click and the image can be moved by dragging on touch devices and by either dragging or hover panning on non-touch devices. The component supports responsive images and optional fullscreen zoom on mobile.

Please check the code below,

Preview of the output that you will get on running this code from your IDE

Code:

In this solution we use the React library.

how to zoom without resize a background-image in reactjs

JavaScriptLines of Code : 59License : CC BY-SA 4.0

class App extends React.Component {

  state = {
    scale: 1,
  }
  
  zoomIn = () => {
     this.setState({ scale: this.state.scale * 2 });
  }
  
  zoomOut = () => {
    this.setState({ scale: this.state.scale / 2 });
  }

  render() {
    return (
      <div className="container">
        <div
          className="bg-image-wrapper"
          style={{ 'transform': `scale(${this.state.scale})` }}
        />
        <div className="content">
          <button onClick={this.zoomIn}>Zoom in</button>
          <button onClick={this.zoomOut}>Zoom out</button>
        </div>
      </div>
    );
  }
}

ReactDOM.render(<App />, document.getElementById('react'));
.container {
  display: block;
  position: relative;
  margin: 10px;
  height: 300px;
  width: 600px;
  overflow: hidden;
  border: 1px solid #ddd;
}

.bg-image-wrapper {
  position: absolute;
  background: url('http://ns328286.ip-37-187-113.eu/ew/wallpapers/800x480/12840_800x480.jpg');
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  transition: 0.4s;
  
}

.content {
  position: relative;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

<div id="react"></div>

Instructions

Follow the steps carefully to get the output easily.

Install the Node.js and React on your IDE(preferable Visual Studio Code).
Create React Application using npx create-react-app foldername.
cd foldername.
Open the folder in IDE.
Copy the code using "copy" button above and paste it in App.js,Style code in App.css and html code in index.html file within the body tag (remove the earlier code from App.js and App.css).
Import the React and React DOM.Next add the export default App to the last line of the code.
Open the terminal from IDE.
npm start to run the file.

I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.

I found this code snippet by searching for ' Zoom without resize a background-image in reactjs ' in kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

The solution is created in VS Code 1.73.1 version.
The solution is tested on Nodejs 16.14.2 version.
react 18.2.0 version

Using this solution, we are able to zoom without resizing a background-image in reactjs with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to zoom without resizing a background-image in reactjs.