Created
September 14, 2017 19:30
-
-
Save larsgk/af78542d74f0dd7b4881944a017c3fc0 to your computer and use it in GitHub Desktop.
Lit singleton tests...
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
let _color = '#ff0000'; | |
let rnd256 = () => Math.floor(Math.random() * 256); | |
setInterval( | |
() => { colorGenerator.color = `rgb(${rnd256()},${rnd256()},${rnd256()})`;}, | |
1000 | |
) | |
export const colorGenerator = { | |
_listeners: { | |
'color-changed': [] | |
}, | |
get color() { return _color; }, | |
set color(c) { _color = c; this._onColorChange(); }, | |
addListener(e, obj) { | |
if(this._listeners[e]) | |
this._listeners[e].push(obj); | |
}, | |
_onColorChange() { | |
if(this._listeners['color-changed']) | |
this._listeners['color-changed'].forEach(obj => obj({ detail: this.color }) ); | |
} | |
}; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment