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Animate background-position with steps() timing to reduce cpu use

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This commit is contained in:
MrOtherGuy 2019-06-24 15:46:13 +03:00
parent 0239329ef8
commit 54b7aededa
1 changed files with 13 additions and 8 deletions
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21
chrome/tabs_animated_gradient_border.css
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@ -1,23 +1,26 @@
/* Adds animated gradient border below tabs and around selected tab */
/* Might or might not work, no promises*/
/* Might or might not work, no promises */
/* Constant animation WILL increase CPU usage */
/*
Thanks to /u/skenera on reddit for suggesting animating background position and using steps() function to reduce cpu load
*/
@keyframes rotate-gradient{
from{filter: hue-rotate(0deg)}
to{filter: hue-rotate(360deg)}
from{background-position: 0 0;}
to{background-position: 200vw 0;}
}
#TabsToolbar::before{
content: "";
display: -moz-box;
position: absolute;
width: 100vw;
width: 200vw;
height: calc(var(--tab-min-height) + 2px);
background-image: linear-gradient(to right, magenta, yellow, cyan);
animation: rotate-gradient 5s linear infinite;
background-image: linear-gradient(to right, magenta, red, yellow, green, cyan, blue, magenta);
animation: rotate-gradient 10s steps(60) infinite;
/*animation-timing-function: linear; */ /* smoother animation, but greatly increased cpu use */
pointer-events: none;
will-change: filter;
z-index: -1;
}
@ -41,7 +44,9 @@
opacity: 1 !important;
}
.tabbrowser-tab{ padding: 2px 2px 0 2px !important; min-height: calc(var(--tab-min-height) - 2px);}
.tabbrowser-tab{ padding: 2px 2px 0 2px !important; }
.tabbrowser-tab:not([selected]){ min-height: calc(var(--tab-min-height) - 2px) !important; }
.tabbrowser-tab[selected]{
padding: 0px !important;