41 lines
1.0 KiB
HTML
41 lines
1.0 KiB
HTML
<script>
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/** @polymerBehavior */
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window.hassBehavior = {
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attached: function attached() {
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var hass = this.hass;
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if (!hass) {
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throw new Error('No hass property found on ' + this.nodeName);
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}
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this.nuclearUnwatchFns = Object.keys(this.properties).reduce(
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function bindGetters(unwatchFns, key) {
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var getter;
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if (!('bindNuclear' in this.properties[key])) {
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return unwatchFns;
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}
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getter = this.properties[key].bindNuclear(hass);
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if (!getter) {
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throw new Error('Undefined getter specified for key ' + key +
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' on ' + this.nodeName);
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}
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this[key] = hass.reactor.evaluate(getter);
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return unwatchFns.concat(hass.reactor.observe(getter, function updateAttribute(val) {
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this[key] = val;
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}.bind(this)));
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}.bind(this), []);
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},
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detached: function detached() {
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while (this.nuclearUnwatchFns.length) {
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this.nuclearUnwatchFns.shift()();
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}
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},
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};
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</script>
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