battery_minutes.qml

import QtQuick 2.1
import QtQuick.Layouts 1.3
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 2.0 as PlasmaComponent
//import org.kde.kcoreaddons 1.0 as KCoreAddons

Item {

	PlasmaCore.DataSource {
		id: pmSource
		engine: "powermanagement"
		connectedSources: sources
		onSourceAdded: {
			disconnectSource(source)
			connectSource(source)
		}
		onSourceRemoved: {
			disconnectSource(source)
		}
	}

	function getBatteryData(key, def) {
		var value = pmSource.data.Battery[key]
		if (typeof value === 'undefined') {
			return def;
		} else {
			return value;
		}
	}
	property bool hasBattery: getBatteryData('Has Battery', false)
	property int remainingTime: getBatteryData('Remaining msec', 0)
	

	PlasmaComponent.Label {
		text: {
			if (remainingTime > 0) {
				// return KCoreAddons.Format.formatDuration(remainingTime, KCoreAddons.FormatTypes.HideSeconds);
				return '' + Math.floor(remainingTime / (60 * 1000)) + 'm'
			} else {
				return '∞';
			}
		}
		anchors.fill: parent
		font.pixelSize: 1024
		fontSizeMode: Text.Fit
		horizontalAlignment: Text.AlignHCenter
		verticalAlignment: Text.AlignVCenter

		color: {
			if (remainingTime <= 15 * 60 * 1000) { // 15 minutes
				return '#e33'
			} else {
				return theme.textColor
			}
		}
	}
	
	
}