Are there plans to add an adapter (or something), so that one can define a
polymer component using as much of the V1 custom spec
<http://w3c.github.io/webcomponents/spec/custom/> as possible? Something
like:
<dom-module id="flag-icon">
<template>
<div>Country Code: [[CountryCode]]</div>
</template>
</dom>
<script>
class FlagIcon extends HTMLElement {
constructor() {
super();
this._countryCode = null;
}
static get observedAttributes() { return ["country"]; }
attributeChangedCallback(name, oldValue, newValue) {
// name will always be "country" due to observedAttributes
this._countryCode = newValue;
this._updateRendering();
}
connectedCallback() {
this._updateRendering();
}
get country() {
return this._countryCode;
}
set country(v) {
this.setAttribute("country", v);
}
}
Polymer.registerV1CustomElement(FlagIcon)
</script>
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