Change color of state-badge icon according to rgb or brightness (#436)

* Change color of state-badge icon according to rgb or brightness

* Remove unneeded edit

* Set minimum brightness at 15%. Clear previous timeout
This commit is contained in:
Andrey 2017-09-27 08:48:12 +03:00 committed by Paulus Schoutsen
parent b1c83a8491
commit acf853f713

View File

@ -1,4 +1,4 @@
<link rel='import' href='../../../bower_components/polymer/polymer.html'>
<link rel='import' href='../../../bower_components/polymer/polymer-element.html'>
<link rel='import' href='./ha-state-icon.html'>
@ -45,45 +45,95 @@
</dom-module>
<script>
Polymer({
is: 'state-badge',
properties: {
class StateBadge extends Polymer.Element {
static get is() { return 'state-badge'; }
static get properties() {
return {
stateObj: {
type: Object,
observer: 'updateIconColor',
},
},
};
}
computeDomain: function (stateObj) {
computeDomain(stateObj) {
return window.hassUtil.computeDomain(stateObj);
},
}
_rgbFromBrightness(brightness) {
// Set icon bbroghtness to a scale between 15% bright to 100% bright.
const iconBrightness = (brightness + 45) / (255 + 45);
const hostBrightness = 1 - iconBrightness;
const re = /rgb\((\d+), (\d+), (\d+)\)/;
const rgbIconMatch = window.getComputedStyle(this.$.icon).color.match(re);
const rgbHostMatch = window.getComputedStyle(this).color.match(re);
let rgb;
if (rgbIconMatch && rgbHostMatch) {
const rgbIcon = rgbIconMatch.slice(1).map(v => Number.parseInt(v, 10));
const rgbHost = rgbHostMatch.slice(1).map(v => Number.parseInt(v, 10));
rgb = [
Math.round((rgbIcon[0] * iconBrightness) + (rgbHost[0] * hostBrightness)),
Math.round((rgbIcon[1] * iconBrightness) + (rgbHost[1] * hostBrightness)),
Math.round((rgbIcon[2] * iconBrightness) + (rgbHost[2] * hostBrightness)),
];
if (rgb.some(v => Number.isNaN(v))) {
return undefined;
}
}
return rgb;
}
/**
* Called when an attribute changes that influences the color of the icon.
*/
updateIconColor: function (newVal) {
updateIconColor(newVal) {
const icon = this.$.icon;
// hide icon if we have entity picture
if (newVal.attributes.entity_picture) {
this.style.backgroundImage = 'url(' + newVal.attributes.entity_picture + ')';
this.$.icon.style.display = 'none';
icon.style.display = 'none';
return;
}
this.style.backgroundImage = '';
this.$.icon.style.display = 'inline';
// for domain light, set color of icon to light color if available and it is
// not very white (sum rgb colors < 730)
if (window.hassUtil.computeDomain(newVal) === 'light' &&
newVal.state === 'on' &&
newVal.attributes.rgb_color &&
newVal.attributes.rgb_color.reduce(function (cur, tot) { return cur + tot; }, 0) < 730) {
this.$.icon.style.color = 'rgb(' + newVal.attributes.rgb_color.join(',') + ')';
} else {
this.$.icon.style.color = null;
if (this._timeoutId) {
window.clearTimeout(this._timeoutId);
this._timeoutId = null;
}
},
});
this.style.backgroundImage = '';
icon.style.display = 'inline';
if (newVal.state === 'unavailable') return;
let rgb;
let oldColor;
if (newVal.attributes.rgb_color) {
rgb = newVal.attributes.rgb_color;
} else if (newVal.attributes.brightness && newVal.attributes.brightness !== 255) {
if (icon.style.color !== '') {
oldColor = icon.style.color;
icon.style.transition = 'none';
icon.style.color = '';
}
rgb = this._rgbFromBrightness(newVal.attributes.brightness);
}
// Set color of icon to rgb color if available and it is not very white (sum rgb colors < 730)
if (rgb && rgb.reduce((cur, tot) => cur + tot, 0) < 730) {
if (oldColor) {
icon.style.color = oldColor;
}
// If we had to cancel transition - wait after restoring old color so transition will start
// from oldColor and not from css 'on' color.
if (icon.style.transition && oldColor) {
this._timeoutId = window.setTimeout(() => {
icon.style.transition = '';
icon.style.color = 'rgb(' + rgb.join(',') + ')';
}, 10);
} else {
icon.style.color = 'rgb(' + rgb.join(',') + ')';
}
} else {
icon.style.color = '';
}
}
}
customElements.define(StateBadge.is, StateBadge);
</script>