Implementing intricate inline styles in React for interactive features like hover and active states on components like buttons

Question

Implementing intricate inline styles in React for interactive features like hover and active states on components like buttons

I'm currently styling my buttons using the following CSS with Bootstrap.

.btn-primary {
    background-color: #229ac8;
    background-image: linear-gradient(to bottom, #23a1d1, #1f90bb);
    background-repeat: repeat-x;
    border-color: #1f90bb #1f90bb #145e7a;
    color: #ffffff;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
}
.btn-primary:hover, .btn-primary:active, .btn-primary.active, .btn-primary.disabled, .btn-primary[disabled] {
    background-color: #1f90bb;
    background-position: 0 -15px;
}

In React, I have created a button component like this:

const MyButton = ({children, onClick, classNames, ...rest }) =>
(
    <button
        onClick   = {onClick}
        className = {`${classNames}`}
        {...rest}
    >
        {children}
    </button>
);

Now, I need to change the button's color dynamically based on server data.

Question 1:

How can I apply inline styles to completely change the button's appearance?

Question 2:

Is it possible to utilize SCSS features like mixins in React to generate button styles based on a variable like color?

Question 3:

Should I opt for inline styles or use CSS-in-JS with classnames?

When creating a reusable component like a button, is it better to use a global class that can be reused across different instances or define local inline styles for each instance?

javascript css reactjs sass

Answer 1

Answer №1

Using CSS in JS for React with Pseudo Classes and MQ Support

When it comes to writing CSS for React, there are numerous libraries available that support pseudo classes. However, most of them require you to either inline your CSS or write it directly in your JavaScript code, which is something I highly recommend.

Exploring CSS Modules for a Better CSS Organization

Another option to consider is using CSS modules, which allows you to write your CSS in a more traditional way while still benefiting from the advantages of modularization. Setting up CSS modules with Webpack is fairly straightforward, and you can then import your CSS as an object and use it in your components.

import styles from './Button.css'

const MyButton = ({children, onClick, type='primary', ...rest }) =>
(
    <button
        onClick   = {onClick}
        className = {styles.primary}
        {...rest}
    >
        {children}
    </button>
);

Enhancing Component Decoupling

It's also a good practice not to pass classes directly to your components and instead handle conditions within the component itself. By using a library like `classnames`, you can easily manage dynamic class names based on props.

import classnames from 'classnames'

const MyButton = ({children, onClick, type='primary', ...rest }) =>
(
    <button
        onClick   = {onClick}
        className = {classnames('.btn', { [`btn-${type}`]: true })}
        {...rest}
    >
        {children}
    </button>
);

By combining CSS Modules with the `classnames` library, you can create powerful and flexible styling solutions for your React components.

Answer 2

Using CSS in JS for React with Pseudo Classes and MQ Support

When it comes to writing CSS for React, there are numerous libraries available that support pseudo classes. However, most of them require you to either inline your CSS or write it directly in your JavaScript code, which is something I highly recommend.

Exploring CSS Modules for a Better CSS Organization

Another option to consider is using CSS modules, which allows you to write your CSS in a more traditional way while still benefiting from the advantages of modularization. Setting up CSS modules with Webpack is fairly straightforward, and you can then import your CSS as an object and use it in your components.

import styles from './Button.css'

const MyButton = ({children, onClick, type='primary', ...rest }) =>
(
    <button
        onClick   = {onClick}
        className = {styles.primary}
        {...rest}
    >
        {children}
    </button>
);

Enhancing Component Decoupling

It's also a good practice not to pass classes directly to your components and instead handle conditions within the component itself. By using a library like `classnames`, you can easily manage dynamic class names based on props.

import classnames from 'classnames'

const MyButton = ({children, onClick, type='primary', ...rest }) =>
(
    <button
        onClick   = {onClick}
        className = {classnames('.btn', { [`btn-${type}`]: true })}
        {...rest}
    >
        {children}
    </button>
);

By combining CSS Modules with the `classnames` library, you can create powerful and flexible styling solutions for your React components.

Answer 3

Answer №2

Personally, I prefer utilizing global CSS and connecting it to Webpack when working with React. This approach helps maintain a cleaner and more modular codebase, allowing for easier editing.

As far as I am aware, SCSS features cannot be directly applied inline within React components.

If you find yourself needing to apply inline styles in React, you can do so by following this example;

var buttonStyle = {
    backgroundColor: "#229ac8",
    backgroundImage: "linear-gradient(to bottom, #23a1d1, #1f90bb)",
    backgroundRepeat: "repeat-x",
    borderColor: "#1f90bb #1f90bb #145e7a",
    color: "#ffffff",
    textShadow: "0 -1px 0 rgba(0, 0, 0, 0.25)"
}

<button style={buttonStyle}>Button</button>

Answer 4

Personally, I prefer utilizing global CSS and connecting it to Webpack when working with React. This approach helps maintain a cleaner and more modular codebase, allowing for easier editing.

As far as I am aware, SCSS features cannot be directly applied inline within React components.

If you find yourself needing to apply inline styles in React, you can do so by following this example;

var buttonStyle = {
    backgroundColor: "#229ac8",
    backgroundImage: "linear-gradient(to bottom, #23a1d1, #1f90bb)",
    backgroundRepeat: "repeat-x",
    borderColor: "#1f90bb #1f90bb #145e7a",
    color: "#ffffff",
    textShadow: "0 -1px 0 rgba(0, 0, 0, 0.25)"
}

<button style={buttonStyle}>Button</button>

Answer 5

Answer №3

hover: when using hooks for fading effect:

const useFading = () => {
  const [ fade, setFade ] = useState(false);

  const onMouseEnter = () => {
    setFade(true);
  };

  const onMouseLeave = () => {
    setFade(false);
  };

  const fadeEffect = !fade ? {
    opacity: 1, transition: 'all .2s ease-in-out',
  } : {
    opacity: .5, transition: 'all .2s ease-in-out',
  };

  return { fadeEffect, onMouseEnter, onMouseLeave };
};

const ListItem = ({ style }) => {
  const { fadeEffect, ...fadeProperties } = useFading();

  return (
    <Paper
      style={{...fadeEffect, ...style}}
      {...fadeProperties}
    >
      {...}
    </Paper>
  );
};

This technique can be applied to handle more intricate scenarios as well.

Answer 6

hover: when using hooks for fading effect:

const useFading = () => {
  const [ fade, setFade ] = useState(false);

  const onMouseEnter = () => {
    setFade(true);
  };

  const onMouseLeave = () => {
    setFade(false);
  };

  const fadeEffect = !fade ? {
    opacity: 1, transition: 'all .2s ease-in-out',
  } : {
    opacity: .5, transition: 'all .2s ease-in-out',
  };

  return { fadeEffect, onMouseEnter, onMouseLeave };
};

const ListItem = ({ style }) => {
  const { fadeEffect, ...fadeProperties } = useFading();

  return (
    <Paper
      style={{...fadeEffect, ...style}}
      {...fadeProperties}
    >
      {...}
    </Paper>
  );
};

This technique can be applied to handle more intricate scenarios as well.

Answer 7

Answer №4

Issue 1:

How do I apply inline styling for a button's complete style?

According to the official documentation:

In React, inline styles are specified using an object with camel-cased style properties and their corresponding values, rather than as a string.

For the following CSS code:

.btn-primary {
    background-color: #229ac8;
    background-image: linear-gradient(to bottom, #23a1d1, #1f90bb);
    background-repeat: repeat-x;
    border-color: #1f90bb #1f90bb #145e7a;
    color: #ffffff;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
}

An inline representation of it would be

const MyButton = () =>
(
    <button
        className = { {
            backgroundColor: '#229ac8',
            backgroundImage: 'linear-gradient(to bottom, #23a1d1, #1f90bb)',
            backgroundRepeat: 'repeat-x',
            borderColor: '#1f90bb #1f90bb #145e7a',
            color: '#ffffff',
            textShadow: '0 -1px 0 rgba(0, 0, 0, 0.25)'
        } }
    </button>
);

Issue 2

Can I incorporate SCSS features like mixins in React to dynamically generate button styles by passing color as a variable?

React's inline styling is essentially a representation of CSS without additional features. However, since inline styles are object-oriented, you can dynamically generate them to simulate SCSS mixins and utilize variables.

A SCSS mixin such as the following

@mixin border-radius($radius) {
    -webkit-border-radius: $radius;
    -moz-border-radius: $radius;
    -ms-border-radius: $radius;
    border-radius: $radius;
}

Can be achieved with a function like this

const borderRadius = ($radius) => {
    return {
        WebkitBorderRadius: $radius;
        MozBorderRadius: $radius;
        MsBorderRadius: $radius;
        borderRadius: $radius;
    }
}

const MyComponent = () => {
    var inlineStyle = Object.assign({}, borderRadius(10), {
        backgroundColor: 'white'
    })

    return (
        <div style={ inlineStyle }>
            Hello, world!
        </div>
    )
}

Issue 3

Would it be better to use inline styles or classnames with CSS in JS?

This question does not have a definitive answer. However, it's recommended to use classnames for general purposes and inline styles for specific cases. Ultimately, the choice depends on how you want to organize and structure your code.

Answer 8

Issue 1:

How do I apply inline styling for a button's complete style?

According to the official documentation:

In React, inline styles are specified using an object with camel-cased style properties and their corresponding values, rather than as a string.

For the following CSS code:

.btn-primary {
    background-color: #229ac8;
    background-image: linear-gradient(to bottom, #23a1d1, #1f90bb);
    background-repeat: repeat-x;
    border-color: #1f90bb #1f90bb #145e7a;
    color: #ffffff;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
}

An inline representation of it would be

const MyButton = () =>
(
    <button
        className = { {
            backgroundColor: '#229ac8',
            backgroundImage: 'linear-gradient(to bottom, #23a1d1, #1f90bb)',
            backgroundRepeat: 'repeat-x',
            borderColor: '#1f90bb #1f90bb #145e7a',
            color: '#ffffff',
            textShadow: '0 -1px 0 rgba(0, 0, 0, 0.25)'
        } }
    </button>
);

Issue 2

Can I incorporate SCSS features like mixins in React to dynamically generate button styles by passing color as a variable?

React's inline styling is essentially a representation of CSS without additional features. However, since inline styles are object-oriented, you can dynamically generate them to simulate SCSS mixins and utilize variables.

A SCSS mixin such as the following

@mixin border-radius($radius) {
    -webkit-border-radius: $radius;
    -moz-border-radius: $radius;
    -ms-border-radius: $radius;
    border-radius: $radius;
}

Can be achieved with a function like this

const borderRadius = ($radius) => {
    return {
        WebkitBorderRadius: $radius;
        MozBorderRadius: $radius;
        MsBorderRadius: $radius;
        borderRadius: $radius;
    }
}

const MyComponent = () => {
    var inlineStyle = Object.assign({}, borderRadius(10), {
        backgroundColor: 'white'
    })

    return (
        <div style={ inlineStyle }>
            Hello, world!
        </div>
    )
}

Issue 3

Would it be better to use inline styles or classnames with CSS in JS?

This question does not have a definitive answer. However, it's recommended to use classnames for general purposes and inline styles for specific cases. Ultimately, the choice depends on how you want to organize and structure your code.

Answer 9

Answer №5

To dynamically change the color of a button, you can define a JavaScript object with inline styles. Here's an example:

const normalButtonStyle = {
  background:'gray',
  color:'black',
  borderColor:'white'
}
const buttonCompleteStyle = {
  background:'red',
  color:'white',
  borderColor:'black'
} // You can also import these styles from another file

const MyButton = ({children, status, onClick, classNames, ...rest }) =>
(
  <button
    onClick   = {onClick}
    className = {`${classNames}`}
    {...rest}
    style={status === 'complete' ? buttonCompleteStyle : normalButtonStyle}
  >
    {children}
  </button>
);

While not tested, this is a general idea. You can explore how Material UI implements this feature.

Answer 10

To dynamically change the color of a button, you can define a JavaScript object with inline styles. Here's an example:

const normalButtonStyle = {
  background:'gray',
  color:'black',
  borderColor:'white'
}
const buttonCompleteStyle = {
  background:'red',
  color:'white',
  borderColor:'black'
} // You can also import these styles from another file

const MyButton = ({children, status, onClick, classNames, ...rest }) =>
(
  <button
    onClick   = {onClick}
    className = {`${classNames}`}
    {...rest}
    style={status === 'complete' ? buttonCompleteStyle : normalButtonStyle}
  >
    {children}
  </button>
);

While not tested, this is a general idea. You can explore how Material UI implements this feature.

Implementing intricate inline styles in React for interactive features like hover and active states on components like buttons

Answer №1

Using CSS in JS for React with Pseudo Classes and MQ Support

Exploring CSS Modules for a Better CSS Organization

Enhancing Component Decoupling

Answer №2

Answer №3

Answer №4

Answer №5

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