How to make a style variable in css ui-tample node

General
,
1

Dear all,

I'm making a dashboard and i have a line that can visualize when energy is flowing,

ui-template code:

<div style="position: relative; width: 190px; height: 40px;">
  <div class="energy-line" style="position: absolute; width: 190px; height: 5px; background-color: #888;">
    <div class="glow-dot" style="animation-delay: 0s;"></div>
    <div class="glow-dot" style="animation-delay: 0.2s;"></div>
    <div class="glow-dot" style="animation-delay: 0.4s;"></div>
    <div class="glow-dot" style="animation-delay: 0.6s;"></div>
    <div class="glow-dot" style="animation-delay: 0.8s;"></div>
    <div class="glow-dot" style="animation-delay: 1s;"></div>
    <div class="glow-dot" style="animation-delay: 1.2s;"></div>
    <div class="glow-dot" style="animation-delay: 1.4s;"></div>
    <div class="glow-dot" style="animation-delay: 1.6s;"></div>
    <div class="glow-dot" style="animation-delay: 1.8s;"></div>
  </div>
</div>

<style>
  .energy-line {
    position: relative;
    overflow: hidden;
  }

  .glow-dot {
    position: absolute;
    top: -3px;
    left: -10px;
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 5px 3px rgba(0, 148, 206, 0.8);
    border-radius: 50%;
    animation: energy-flow 2s linear infinite;
    display: block; //how to change this parameter with un injection node??\\
  }

  @keyframes energy-flow {
    from {
      left: -10px;
    }

    to {
      left: 190px;
    }
  }
</style>

problem is i want to switch the line on en off on demand.

the style parameter i want to use for that would be .glow-dot display.
block means on and none means off,

I would love to do that with un injection node, using msg.payload.

but what ever i try it is not working.

who could help me? i'm using dashboard 2.0

2

You can bind the element style to a data variable in your data area, so that it changes dynamically per the data you set in the variable, by using :style instead of style.

// HTML
<v-btn :style="{ backgroundColor: buttonColor }">Click Me</v-btn>

// JS
data() {
  return {
    buttonColor: xxx //set this dynamically
  }
}