How to load a CSS spinner over my react component with opacity of 0.7?

user_8176451 0
Viewed 2396

Okay, I have seen multiple ways out there which support css spinners but what I intend to create is a spinner over my actual page with opacity of about 0.7.

Here is my code:

import React, { Component } from "react";
import Spinner from "./Spinner";

class ReactClass extends Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoading: false
    };
  }

  render() {
    const renderComponent = <div>Let's wrap spinner over this component</div>;
    return this.state.isLoading ? <Spinner /> : renderComponent;
  }
}

export default ReactClass;

here's how it looks: enter image description here How I want it to look like is overlay over the original renderComponent with a certain opacity.

Here's the live demo, feel free to make changes. You can control Spinner movement by changing this.state.isLoading prop:

enter image description here

Kindly let me know if there's some way to do so. CSS Code of Spinner and the spinner component is also present in the live demo link and for your reference I am adding it here as well:

Spinner.js:

import React from "react";
import "./spinner.css";
const Spinner = (props) => {
  return <div className={"loader"}>Loading...</div>;
};

export default Spinner;

.loader {
  color: #330081;
  font-size: 8rem;
  text-indent: -9999em;
  overflow: hidden;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  margin: 72px auto;
  position: relative;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-animation: load6 1.7s infinite ease, round 1.7s infinite ease;
  animation: load6 1.7s infinite ease, round 1.7s infinite ease;
}
@-webkit-keyframes load6 {
  0% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  5%,
  95% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  10%,
  59% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em,
      -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em,
      -0.297em -0.775em 0 -0.477em;
  }
  20% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em,
      -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em,
      -0.749em -0.34em 0 -0.477em;
  }
  38% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em,
      -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em,
      -0.82em -0.09em 0 -0.477em;
  }
  100% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
}
@keyframes load6 {
  0% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  5%,
  95% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  10%,
  59% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.087em -0.825em 0 -0.42em,
      -0.173em -0.812em 0 -0.44em, -0.256em -0.789em 0 -0.46em,
      -0.297em -0.775em 0 -0.477em;
  }
  20% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em,
      -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em,
      -0.749em -0.34em 0 -0.477em;
  }
  38% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em,
      -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em,
      -0.82em -0.09em 0 -0.477em;
  }
  100% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
      0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
}
@-webkit-keyframes round {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
@keyframes round {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}
reactjs css
2 Answers

Hei,change it to:

testcomponent.js

return (
  <>
    {renderComponent}
    {this.state.isLoading && <Spinner />}
  </>
);

Spinner.js

return (
 <div className={"loader-wrapper"}>
   <div className={"loader"}>Loading...</div>
 </div>
);

Also you should modify spinner.css file: Add:

.loader-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;

  display: flex;
  align-items: center;
  justify-content: center;

  background-color: rgba(255, 255, 255, 0.7);
}

Remove: from .loader remove margin

user_31066760

You need the spinner not to take up space in the DOM else it pushes down the text following it so make it position absolute. Also you can set the opacity here.

  .loader {
      position: absolute;
      opacity: 0.7;
    }
user_108674540
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