galfert
8e7430ebb9
When any of the depending properties of the contribution changes, the helper recomputes its output.
49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
import Helper from '@ember/component/helper';
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import { inject as service } from '@ember/service';
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import { alias } from '@ember/object/computed';
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import { once } from '@ember/runloop';
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export default Helper.extend({
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kredits: service(),
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currentBlock: alias('kredits.currentBlock'),
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compute([contribution]) {
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this.setupRecompute(contribution);
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if (contribution.vetoed) {
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return 'vetoed';
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} else if (contribution.confirmedAt > this.currentBlock) {
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return 'unconfirmed';
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} else {
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return 'confirmed'
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}
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},
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destroy () {
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if (this.teardown) this.teardown();
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this._super(...arguments);
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},
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setupRecompute (contribution) {
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if (this.teardown) this.teardown();
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contribution.addObserver('vetoed' , this, this.triggerRecompute);
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contribution.addObserver('confirmedAt' , this, this.triggerRecompute);
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contribution.addObserver('currentBlock' , this, this.triggerRecompute);
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this.teardown = () => {
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contribution.removeObserver('vetoed', this, this.triggerRecompute);
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contribution.removeObserver('confirmedAt', this, this.triggerRecompute);
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contribution.removeObserver('currentBlock', this, this.triggerRecompute);
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};
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},
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triggerRecompute () {
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once(this, function () {
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this.recompute();
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});
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}
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});
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