Cancel an active recording if the chat is switched

src/main/java/envoy/client/data/audio/AudioRecorder.java

@@ -57,6 +57,12 @@ public final class AudioRecorder {
 	 */
 	public boolean isSupported() { return AudioSystem.isLineSupported(info); }
 
+	/**
+	 * @return {@code true} if the recorder is active
+	 * @since Envoy Client v0.1-beta
+	 */
+	public boolean isRecording() { return line != null && line.isActive(); }
+
 	/**
 	 * Starts the audio recording.
 	 * 
@@ -100,4 +106,14 @@ public final class AudioRecorder {
 			throw new EnvoyException("Cannot save voice recording", e);
 		}
 	}
+
+	/**
+	 * Cancels the active recording.
+	 * 
+	 * @since Envoy Client v0.1-beta
+	 */
+	public void cancel() {
+		line.stop();
+		line.close();
+	}
 }

src/main/java/envoy/client/ui/controller/ChatScene.java

@@ -17,7 +17,9 @@ import javafx.scene.input.KeyCode;
 import javafx.scene.input.KeyEvent;
 import javafx.scene.paint.Color;
 
-import envoy.client.data.*;
+import envoy.client.data.Chat;
+import envoy.client.data.LocalDB;
+import envoy.client.data.Settings;
 import envoy.client.data.audio.AudioRecorder;
 import envoy.client.event.MessageCreationEvent;
 import envoy.client.net.Client;
@@ -179,7 +181,6 @@ public final class ChatScene {
 		if (!client.isOnline()) updateInfoLabel("You are offline", "infoLabel-info");
 
 		recorder = new AudioRecorder();
-		voiceButton.setDisable(!recorder.isSupported());
 	}
 
 	/**
@@ -211,7 +212,11 @@ public final class ChatScene {
 			}
 
 			// Discard the pending attachment
-			// TODO: stop running recording
+			if (recorder.isRecording()) {
+				recorder.cancel();
+				recording = false;
+				voiceButton.setText("Record Voice Message");
+			}
 			pendingAttachment = null;
 
 			remainingChars.setVisible(true);
@@ -219,6 +224,7 @@ public final class ChatScene {
 				.setText(String.format("remaining chars: %d/%d", MAX_MESSAGE_LENGTH - messageTextArea.getText().length(), MAX_MESSAGE_LENGTH));
 		}
 		messageTextArea.setDisable(currentChat == null || postingPermanentlyDisabled);
+		voiceButton.setDisable(!recorder.isSupported());
 	}
 
 	/**
@@ -290,8 +296,7 @@ public final class ChatScene {
 
 	private void checkPostConditions(boolean sendKeyPressed) {
 		if (!postingPermanentlyDisabled) {
-			if (!postButton.isDisabled() && sendKeyPressed)
+			if (!postButton.isDisabled() && sendKeyPressed) postMessage();
-				postMessage();
 			postButton.setDisable((messageTextArea.getText().isBlank() && pendingAttachment == null) || currentChat == null);
 		} else {
 			final var noMoreMessaging = "Go online to send messages";

src/main/resources/fxml/ChatScene.fxml

@@ -111,8 +111,8 @@
 				<Insets right="10.0" top="5.0" />
 			</GridPane.margin>
 			<buttons>
-				<Button fx:id="voiceButton" onAction="#voiceButtonClicked"
+				<Button fx:id="voiceButton" disable="true"
-					text="_Record Voice Message" />
+					onAction="#voiceButtonClicked" text="_Record Voice Message" />
 				<Button fx:id="postButton" defaultButton="true"
 					disable="true" mnemonicParsing="true" onAction="#postMessage"
 					prefHeight="10.0" prefWidth="75.0" text="_Post">