Styling a dynamic component in React using styled-components

Question

Styling a dynamic component in React using styled-components

I encountered a challenge that requires some creative problem-solving:

In my project, I have defined various icons using components from Material-UI, each accompanied by additional props for flexibility in rendering. Now, imagine a scenario where I need to use the same icon but styled differently - one instance should be red while the other green. However, MUI icons do not natively support color props (aside from predefined options), so I turned to CSS for styling.

Typically, with styled-components, I would style the icon like this:

const StyledIcon = styled(AssignmentIcon)`
  color: red
`

The challenge arises when I don't know in advance which specific icon I'll need to style, as certain components may receive varying icons like AssignmentIcon and BugReportIcon. Since defining styled components inside another component isn't feasible with styled-components, I had to find a workaround.

My solution involves a helper function called styleIcon, capable of dynamically taking a React.ComponentType, applying styling through styled(), and returning the modified icon for rendering.

This approach feels somewhat convoluted, relying on helper functions to achieve the desired outcome. Are there simpler methods to tackle this issue? (Note: using style={{}} props directly during icon rendering is not suitable, as it could clash with other applied styles through prop spreading)

javascript css reactjs styled-components

Answer 1

Answer №1

Your component should have the ability to switch to different colors easily.

  const color = props => props.color || 'red'

  const StyledIcon = styled.div`
    color: ${color};
  `

If a specific color is specified, it will be used, like this:

  return <StyledIcon color="blue" />

In cases where using a theme mode is preferred, for example, StyledComponent supports themes.

https://styled-components.com/docs/advanced

Even if you don't want to stick with one theme all the time, you can dynamically apply different themes at runtime.

  <ThemeProvider theme={theme1}>
    // A
    <ThemeProvider theme={theme2}>
      // B
      <Button>Themed</Button>
    </ThemeProvider>
    // C
  </ThemeProvider>
  // D

The locations A, B, C, and D will each receive different themes:

A. theme1
B. theme2
C. theme1
D. defaultTheme

The basic solution should provide insight, but if not, consider utilizing the advanced theme options offered by StyledComponent.

Answer 2

Your component should have the ability to switch to different colors easily.

  const color = props => props.color || 'red'

  const StyledIcon = styled.div`
    color: ${color};
  `

If a specific color is specified, it will be used, like this:

  return <StyledIcon color="blue" />

In cases where using a theme mode is preferred, for example, StyledComponent supports themes.

https://styled-components.com/docs/advanced

Even if you don't want to stick with one theme all the time, you can dynamically apply different themes at runtime.

  <ThemeProvider theme={theme1}>
    // A
    <ThemeProvider theme={theme2}>
      // B
      <Button>Themed</Button>
    </ThemeProvider>
    // C
  </ThemeProvider>
  // D

The locations A, B, C, and D will each receive different themes:

A. theme1
B. theme2
C. theme1
D. defaultTheme

The basic solution should provide insight, but if not, consider utilizing the advanced theme options offered by StyledComponent.

Answer 3

Answer №2

It seems like you're looking to change the color of Material UI icons without explicitly styling them. I've devised a solution using a wrapper that can take Material UI icons as child nodes.

To start, we'll define the styling for the wrapper:

const StyledIcon = styled.span<{color: string}>`
  svg, .icon {
    color: ${props => props.color}; // You can even pass a hex color
  }
`

Next, create a separate React component. While you can use the styled component directly, creating a separate component will help with managing states and effects in the future:

interface ColorfulIconProps {
  color: string;

  [k: string]: any;
}

const ColorfulIcon: React.FC<ColorfulIconProps> = ({ color, children, ...rest }) => {
  // Manage states and effects here

  return (
    <StyledIcon color={color} {...rest}>
      {children}
    </StyledIcon>
  );
};

Finally, to utilize this setup, simply pass the desired Material UI icons or your custom icon set formatted as svg:

const App = () => {
  return (
    <ColorfulIcon color="red">
      <AMaterialUIIcon />
    </ColorfulIcon>
  );
};

Check out the live demo: https://codesandbox.io/s/modern-brook-oecgn?file=/src/StyledIcon.tsx

Answer 4

It seems like you're looking to change the color of Material UI icons without explicitly styling them. I've devised a solution using a wrapper that can take Material UI icons as child nodes.

To start, we'll define the styling for the wrapper:

const StyledIcon = styled.span<{color: string}>`
  svg, .icon {
    color: ${props => props.color}; // You can even pass a hex color
  }
`

Next, create a separate React component. While you can use the styled component directly, creating a separate component will help with managing states and effects in the future:

interface ColorfulIconProps {
  color: string;

  [k: string]: any;
}

const ColorfulIcon: React.FC<ColorfulIconProps> = ({ color, children, ...rest }) => {
  // Manage states and effects here

  return (
    <StyledIcon color={color} {...rest}>
      {children}
    </StyledIcon>
  );
};

Finally, to utilize this setup, simply pass the desired Material UI icons or your custom icon set formatted as svg:

const App = () => {
  return (
    <ColorfulIcon color="red">
      <AMaterialUIIcon />
    </ColorfulIcon>
  );
};

Check out the live demo: https://codesandbox.io/s/modern-brook-oecgn?file=/src/StyledIcon.tsx

Styling a dynamic component in React using styled-components

Answer №1

Answer №2

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