Add visibility query
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@ -51,6 +51,10 @@ class Popup {
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this.showAt({x: posX, y: posY}, content);
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}
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visible() {
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return this.popup !== null && this.popup.style.visibility !== 'hidden';
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}
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hide() {
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if (this.popup !== null) {
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this.popup.style.visibility = 'hidden';
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