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remove old observer before changing user

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This commit is contained in:
Arnaud Vergnet 2020-12-16 11:13:04 +01:00
parent f544711bfb
commit 6f1bd41cc9
1 changed files with 23 additions and 12 deletions
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23
src/main/java/fr/insa/clavardator/ui/users/UserActiveIndicatorController.java
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@ -5,6 +5,7 @@ import javafx.fxml.FXML;
import javafx.fxml.Initializable; import javafx.fxml.Initializable;
import javafx.scene.shape.Circle; import javafx.scene.shape.Circle;
import java.beans.PropertyChangeEvent;
import java.net.URL; import java.net.URL;
import java.util.ResourceBundle; import java.util.ResourceBundle;
@ -12,13 +13,15 @@ public class UserActiveIndicatorController implements Initializable {
@FXML @FXML
private Circle circle; private Circle circle;
private PeerUser user;
@Override @Override
public void initialize(URL location, ResourceBundle resources) { public void initialize(URL location, ResourceBundle resources) {
} }
private void updateState(PeerUser user) { private void updateState() {
if (user != null) {
circle.getStyleClass().clear(); circle.getStyleClass().clear();
if (user.isActive()) { if (user.isActive()) {
circle.getStyleClass().add("active-user-dot"); circle.getStyleClass().add("active-user-dot");
@ -26,14 +29,22 @@ public class UserActiveIndicatorController implements Initializable {
circle.getStyleClass().add("inactive-user-dot"); circle.getStyleClass().add("inactive-user-dot");
} }
} }
}
private void onStateChange(PropertyChangeEvent propertyChangeEvent) {
if (propertyChangeEvent.getPropertyName().equals("state")) {
updateState();
}
}
public void setUser(PeerUser user) { public void setUser(PeerUser user) {
user.addObserver(propertyChangeEvent -> { if (this.user != null) {
if (propertyChangeEvent.getPropertyName().equals("state")) { // remove old observer before setting new user
updateState(user); this.user.removeObserver(this::onStateChange);
} }
}); this.user = user;
updateState(user); user.addObserver(this::onStateChange);
updateState();
} }
public void setSize(double value) { public void setSize(double value) {