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battery-status-icon.html
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battery-status-icon.html
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<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../iron-icons/device-icons.html">
<link rel="import" href="../iron-icons/iron-icons.html">
<link rel="import" href="../iron-icon/iron-icon.html">
<link rel="import" href="../paper-tooltip/paper-tooltip.html">
<!--
### Example:
<battery-status-icon></battery-status-icon>
<battery-status-icon level="33" charging></battery-status-icon>
<battery-status-icon level="15" show-label></battery-status-icon>
<battery-status-icon level="50" show-label label-position="top"></battery-status-icon>
<battery-status-icon level="66" color-levels></battery-status-icon>
<battery-status-icon autodetect show-label color-levels></battery-status-icon>
### Styling
The following custom properties are available for styling:
Custom property | Description | Default
----------------|-------------|----------
`--battery-icon-size` | Size of battery icon displayed. | `24px`
`--battery-default-color` | Color of battery when colorLevels is false. | `#323`
`--battery-high-color` | Color of battery when above 80%. | `Green`
`--battery-mid-color` | Color of battery when between 80% >< 20%. | `Orange`
`--battery-low-color` | Color battery when below 20%. | `Red`
`--battery-label-background` | Background color of tooltip label. | `#616161`
`--battery-label-opacity` | Opacity level of tooltip label. | `0.9`
`--battery-label-text-color` | Text color of tooltip label | `White`
`--battery-icon-rotate` | Use rotate(x) to rotate the battery icon.<br>Sample: --battery-icon-rotate: rotate(270deg); | `rotate(0deg)`
__Style example:__
This part of the code needs to be within your head tags, or imported as part of your app-theme.html
<style is="custom-style">
:root {
--battery-default-color: #455A64;
--battery-low-color: #D32F2F;
--battery-mid-color: #F57C00;
--battery-high-color: #388E3C;
--battery-icon-size: 48px;
--battery-label-background: #455A64;
--battery-label-opacity: 1;
--battery-label-text-color: #CFD8DC;
}
/* Battery Icon is rotated by 270° (left to right) */
.left-to-right {
--battery-icon-rotate: rotate(270deg);
}
/* Battery Icon is rotated by 90° (right to left) */
.right-to-left {
--battery-icon-rotate: rotate(90deg);
}
</style>
@element battery-status-icon
@demo demo/index.html
-->
<dom-module id="battery-status-icon">
<template>
<style>
:host {
display: block;
--iron-icon-width: var(--battery-icon-size, 24px);
--iron-icon-height: var(--battery-icon-size, 24px);
--paper-tooltip-background: var(--battery-label-background, #616161);
--paper-tooltip-opacity: var(--battery-label-opacity, 0.9);
--paper-tooltip-text-color: var(--battery-label-text-color, white);
}
iron-icon[id="tooltip"] {
--iron-icon-width: 24px;
--iron-icon-height: 24px;
}
#battery-container {
width: var(--battery-icon-size, 24px);
-moz-transform: var(--battery-icon-rotate, rotate(0deg));
/* Firefox */
-o-transform: var(--battery-icon-rotate, rotate(0deg));
/* Opera */
-ms-transform: var(--battery-icon-rotate, rotate(0deg));
/* IE 9 */
-webkit-transform: var(--battery-icon-rotate, rotate(0deg));
/* Chrome, Safari, Opera */
transform: var(--battery-icon-rotate, rotate(0deg));
}
.label {
top: 2px;
position: relative;
font-family: "Roboto Condensed", sans-serif;
}
iron-icon[id="default"] {
color: var(--battery-default-color, #323);
}
iron-icon[id="high"] {
color: var(--battery-high-color, Green);
}
iron-icon[id="mid"] {
color: var(--battery-mid-color, Orange);
}
iron-icon[id="low"] {
color: var(--battery-low-color, Red);
}
</style>
<div id="battery-container">
<iron-icon id="[[_batteryLevel]]" icon="[[_iconName]]"></iron-icon>
</div>
<paper-tooltip offset="1" position="{{labelPosition}}" hidden$="[[!showLabel]]" for="battery-container">
<table>
<tr>
<td>
<iron-icon id="tooltip" hidden$="[[!charging]]" icon="icons:trending-up"></iron-icon>
<iron-icon id="tooltip" hidden$="[[charging]]" icon="icons:trending-down"></iron-icon>
</td>
<td>
{{_getLabel(level)}}
<br>
<span hidden$="[[!charging]]">{{_convertTime(chargingtime)}}</span>
<span hidden$="[[charging]]">{{_convertTime(dischargingtime)}}</span>
</td>
<tr>
</table>
</paper-tooltip>
<span class="label" hidden$="[[!showLabel]]"></span>
</template>
</dom-module>
<script>
Polymer({
is: 'battery-status-icon',
properties: {
/**
* Shows label if true (set to true with show-label)
*
* @attribute showLabel
* @type Boolean
* @default false
*/
showLabel: {
type: Boolean,
value: false
},
/**
* In which direction should the tooltip appear
*
* @attribute labelPosition
* @type String
* @default right
*/
labelPosition: {
type: String,
value: "right"
},
/**
* Change color depending on remaining battery level
*
* @attribute colorLevels
* @type Boolean
* @default false
*/
colorLevels: {
type: Boolean,
value: false
},
/**
* Auto detect battery level, rather than static unput
*
* @attribute autodetect
* @type Boolean
* @default false
*/
autodetect: {
type: Boolean,
value: false
},
/**
* Container for battery level value
*
* @attribute level
* @type Number
* @default NULL
*/
level: {
type: Number,
notify: true
},
/**
* Detects if device is charging (Only works with autodetect)
*
* @attribute charging
* @type Boolean
* @default false
*/
charging: {
type: Boolean,
value: false,
notify: true
},
/**
* Battery charging time in seconds
*
* @attribute chargingtime
* @type Number
* @default NULL
*/
chargingtime: {
type: Number,
default: "0"
},
/**
* Battery discharging time in seconds
*
* @attribute dischargingtime
* @type Number
* @default NULL
*/
dischargingtime: {
type: Number,
default: "0"
},
/**
* Container for battery level icon name
*
* @attribute _iconName
* @type String
* @default device:battery-unknown
*/
_iconName: {
type: String,
value: "device:battery-unknown",
computed: "_calculateIcon(level, charging)"
},
/**
* Container for battery level status (high,mid,low)
*
* @attribute _batteryLevel
* @type String
* @default default
*/
_batteryLevel: {
type: String,
value: "default"
}
/**
* Fired when the battery `level` changes its value.
*
* @event level-changed
* @param {number} the new battery level.
*/
/**
* Fired when the battery state `charging` changes its value.
*
* @event charging-changed
* @param {boolean} true when battery is charging.
*/
},
ready: function () {
if (!navigator.getBattery) {
console.log('Battery Status API not supported.');
return;
}
if (!this.autodetect) {
return;
}
navigator.getBattery().then(function (battery) {
this.set('charging', battery.charging);
this.set('level', parseInt(battery.level * 100));
this.set('chargingtime', battery.chargingTime);
this.set('dischargingtime', battery.dischargingTime);
battery.addEventListener('chargingchange', function () {
this.set('charging', battery.charging);
}.bind(this));
battery.addEventListener('levelchange', function () {
this.set('level', parseInt(battery.level * 100));
}.bind(this));
battery.addEventListener('chargingtimechange', function () {
this.set('chargingtime', battery.chargingTime);
}.bind(this));
battery.addEventListener('dischargingtimechange', function () {
this.set('dischargingtime', battery.dischargingTime);
}.bind(this));
}.bind(this));
},
/**
* Adds percent sign to end of level value
*/
_getLabel: function (level) {
if (level === undefined || level === null)
return "";
return level + "%";
},
/**
* Converts to human readable time
*/
_convertTime: function (totalSeconds) {
if ((!totalSeconds) || (totalSeconds == "Infinity") || (totalSeconds == 0)) {
return '';
}
var hours = Math.floor(totalSeconds / 3600);
var minutes = Math.floor((totalSeconds % 3600) / 60);
hours = hours < 10 ? "0" + hours : hours;
minutes = minutes < 10 ? "0" + minutes : minutes;
return hours + ':' + minutes;
},
/**
* Calculate which icon suits needs best
*/
_calculateIcon: function (level, charging) {
$this = this;
var value = "device:battery-";
if (this.charging)
value += "charging-"
if (this.level >= 95)
value += "full",
$this.colorLevels && ($this._batteryLevel = "high");
else if (this.level >= 90)
value += 90,
$this.colorLevels && ($this._batteryLevel = "high");
else if (this.level >= 80)
value += 80,
$this.colorLevels && ($this._batteryLevel = "high");
else if (this.level >= 60)
value += 60,
$this.colorLevels && ($this._batteryLevel = "mid");
else if (this.level >= 50)
value += 50,
$this.colorLevels && ($this._batteryLevel = "mid");
else if (this.level >= 30)
value += 30,
$this.colorLevels && ($this._batteryLevel = "mid");
else if (this.level >= 20)
value += 20,
$this.colorLevels && ($this._batteryLevel = "low");
else if (this.level >= 0)
!($this.charging) && (value += "alert"),
($this.charging) && (value += "full"),
$this.colorLevels && ($this._batteryLevel = "low");
else
value += "unknown";
return value;
}
});
</script>