Add Progress dialog

src/dialog.ts

@@ -81,6 +81,7 @@ export default class Dialog extends EventEmitter {
 	process: ChildProcessWithoutNullStreams;
 	output: string = "";
 	error: string = "";
+	killing = false;
 	constructor(
 		public type_option: string,
 		public args: DialogOptions,
@@ -170,7 +171,7 @@ export default class Dialog extends EventEmitter {
 				if (code !== 0) {
 					if (!spawned) {
 						reject({ code, message: this.error });
-					} else {
+					} else if (!this.killing) {
 						this.emit("error", code);
 					}
 				} else {
@@ -190,4 +191,9 @@ export default class Dialog extends EventEmitter {
 			});
 		});
 	}
+
+	hide() {
+		this.killing = true;
+		return this.process.kill();
+	}
 }

src/index.ts

@@ -6,4 +6,5 @@ export {
 	ItemsSelectedResponse,
 } from "./list";
 export { default as Entry } from "./entry";
+export { default as Progress } from "./progress";
 export { default as TextInfo } from "./text-info";

src/progress.ts

@@ -0,0 +1,26 @@
+import Dialog, { DialogOptions } from "./dialog";
+
+type ProgressOptions = Partial<{ text: string; pulsate: true; noCancel: true }>;
+
+export default class Progress {
+	private dialog: Dialog;
+
+	async show(options: ProgressOptions): Promise<void> {
+		this.dialog = new Dialog("progress", Progress.prepareOptions(options));
+		await this.dialog.show();
+	}
+
+	static prepareOptions(options: ProgressOptions): DialogOptions {
+		const ret: DialogOptions = {};
+		if (typeof options.text === "string") {
+			ret.text = options.text;
+		}
+		ret.pulsate = options.pulsate;
+		ret["no-cancel"] = options.noCancel;
+		return ret;
+	}
+
+	async hide() {
+		return this.dialog.hide();
+	}
+}