[MMM-Rainbow] Animated text color transition

[BKeyport]

Actually, I’d be more interested in the mechanics in getting it to work down to the module level more than anything, would be nice to use it for say “Grabbing Attention” in a particular module…

[ganget]

@seann I took a different approach to this, mainly because I only wanted to have it for only one module. I have changed my custom.css and one line in the clock.js, so it grabs a different style.
My code makes a gradient background which I clip to the text. Then to make it move across the text i use webkit-animation. I’m not totally satisfied with the result of the animation yet but i will keep tweaking that.

the animation moves way too fast now and when I make the animation duration longer it doesn’t feature all the colors of the gradient.
the only line i needed to change in the clock.js file

timeWrapper.className = "time clock-time-only-color large light";

Custom.css (lines i added)

.clock-time-only-color {
	background-image: linear-gradient(to right, #ff0000,#ff4000,#ff8000,#ffbf00,#ffff00,#bfff00,#80ff00,#40ff00,#00ff00,#00ff40,#00ff80,#00ffbf,#00ffff,#00bfff,#0080ff,#0040ff,#0000ff,#4000ff,#8000ff,#bf00ff,#ff00ff,#ff00bf,#ff0080,#ff0040,#ff0000);
	-webkit-background-clip:  text;
	-webkit-animation: animate 3s linear infinite;
	background-size: 500%;
	color: transparent;
	
}
@-webkit-keyframes animate{
	0%	{background-position: 0% 500%;}
	50%	{background-position: 100% 0%;}
	100%    {background-position: 0% 100%;}
	}

Do you have any idea on how I can make the animation duration way longer like 10 min and still show all the colors in the gradient?

Thank you for the initial idea and for inspiring me!

[Seann]

@ganget I’m not really that good with css animations but from what I can see,

-webkit-animation: animate 3s linear infinite;

should have something to do with it right? maybe if you make that 10 minutes instead.

[ganget]

@seann yeah i tried increasing the number to like 20 sec up to 6000. But the problem i get then is that it shows me only the first 2 colors in the gradient. Dunno but will try and work on it tomorrow

[justjim1220]

@ganget

change your background size to 20% instead of 500%

Only other issue I find is that it refreshes itself every second, would be better if it were more fluid-like that the refresh isn’t so notice-able.

[justjim1220]

@ganget & @BKeyport

So, I modified my MMM-DigClock with your rainbow css with some other tweaks…

.MMM-DigClock .time {
  font-size: 300px;
  text-align: center;
  line-height: 85%;
  letter-spacing: 5px;
  font-weight: 900;
  font-family: DS-Digital;
  background: -webkit-linear-gradient(left, red,orange,yellow,green,blue,purple);
  background: -moz-linear-gradient(left, red,orange,yellow,green,blue,purple);
  background: -o-linear-gradient(left, red,orange,yellow,green,blue,purple);
  background: linear-gradient(to left, red,orange,yellow,green,blue,purple);
  -webkit-background-clip: text;
  -moz-background-clip: text;
  background-clip: text;
  -webkit-animation: animate 10s linear infinite;
  -moz-animation: animate 10s linear infinite;
  -o-animation: animate 10s linear infinite;
  animation: animate 10s linear infinite;
  background-size: 25%;
  -webkit-text-fill-color: transparent;
}

And it seems to work fairly decent.
But I had to change the update interval within the clock code to update every minute instead of every second, by placing the following within the start: function() …

// Schedule update interval.
		var self = this;
		setInterval(function() {
			self.updateDom();
		}, 60000);

[justjim1220]

@seann
you can change the update interval within the clock code to update every minute instead of every second, by placing the following within the start: function() …

// Schedule update interval.
    var self = this;
    setInterval(function() {
	self.updateDom();
    }, 60000);

[ganget]

@justjim1220 Good tip man! I will change the update interval and look at the difference.

[ganget]

@justjim1220 I changed the update interval to 60 sec and that makes it work allot better. I kept the background size at 500% so the color gradient won’t repeat.

.clock-time-only-color {
	background-image: linear-gradient(to left, red,orange,yellow,green,blue,purple);
	-webkit-background-clip:  text;
	-webkit-animation: animate 60s linear infinite;
	background-size: 500%;
	color: transparent;
	
}
@-webkit-keyframes animate{
	0%	{background-position: 0% 500%;}
	100%	{background-position: 500% 0%;}

The result

Thanks for your help!

[Seann]

@justjim1220 Say if you start your mirror at 30 seconds past the minute, the clock on the mirror wont update until 30 seconds past the next minute, that’s why I created my own clock