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diff --git a/toolkit/actors/PrintingSelectionChild.sys.mjs b/toolkit/actors/PrintingSelectionChild.sys.mjs
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+++ b/toolkit/actors/PrintingSelectionChild.sys.mjs
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+/* vim: set ts=2 sw=2 sts=2 et tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+export class PrintingSelectionChild extends JSWindowActorChild {
+ receiveMessage(message) {
+ switch (message.name) {
+ case "PrintingSelection:HasSelection":
+ return this.hasSelection();
+ }
+
+ return undefined;
+ }
+
+ hasSelection() {
+ let selection = this.browsingContext.associatedWindow?.getSelection();
+ return selection && selection.type == "Range";
+ }
+}