package bluej.utility.javafx.dialog;

import javafx.animation.RotateTransition;
import javafx.application.Platform;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.event.ActionEvent;
import javafx.scene.Node;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonBar;
import javafx.scene.control.ButtonType;
import javafx.scene.control.DialogPane;
import javafx.scene.control.Label;
import javafx.scene.layout.AnchorPane;
import javafx.scene.text.Text;
import javafx.util.Duration;

import bluej.utility.javafx.FXPlatformRunnable;
import bluej.utility.javafx.JavaFXUtil;
import threadchecker.OnThread;
import threadchecker.Tag;




| A custom DialogPane that runs a "jiggle" animation on a given
|* error label whenever the user mouses over the disabled OK button,
* or clicks an enabled OK button with a non-empty error label.
 
*/
@OnThread(value = Tag.FXPlatform, ignoreParent = true)
|
|public class DialogPaneAnimateError extends DialogPane{
|
|/** An extra action to run when the OK button is mouse overed


   
   private final FXPlatformRunnable extraMouseEnter;
   
   

| The jiggle animation.  Null when not running
|
private RotateTransition animation = null;
   
   

| The error label to animate
|
private Node errorLabel;
   
   

| Whether the error label is empty
|
private SimpleBooleanProperty errorLabelEmpty = new SimpleBooleanProperty(true);
   
   

| The actual OK button
|
private Button okButton;

   
   


| Constructs a new Dialog Pane.  Note that the constructor does not actually
| set the buttons in the dialog (you should do this yourself, meaning you can
| choose OK-Cancel or OK by itself) or add stylesheets or anything else.
|
| @param errorLabel The error label to animate
| @param extraMouseEnter An extra action to run when the OK button is mouse overed.
|                        This may well affect the disabled state of the OK button;
|                        we only decide whether to run the animation after this action has run.
|
public DialogPaneAnimateError(Label errorLabel, FXPlatformRunnable extraMouseEnter)
   {        
      this.errorLabel = errorLabel;
      this.errorLabelEmpty.bind(errorLabel.textProperty().isEmpty());
       
      this.extraMouseEnter = extraMouseEnter;     
      }

   
   
   
   
   
   @Override
   
   protected Node createButton(ButtonType buttonType)
   {        
      
      Node normal = super.createButton(buttonType);
       
      
      if (buttonType == ButtonType.OK)
       {
         okButton = (Button)normal;
         
         AnchorPane okWrapper = new AnchorPane(normal);
         AnchorPane.setTopAnchor(okButton, 0.0);
         AnchorPane.setBottomAnchor(okButton, 0.0);
         AnchorPane.setLeftAnchor(okButton, 0.0);
         AnchorPane.setRightAnchor(okButton, 0.0);
           
         
         ButtonBar.setButtonData(okWrapper, buttonType.getButtonData());
         ButtonBar.setButtonUniformSize(okWrapper, true);
         okWrapper.setOnMouseEntered(e -> {
         extraMouseEnter.run();
         if (okButton.isDisable())
               {
            animate();                 
            }             
         });
      okButton.addEventFilter(ActionEvent.ACTION, event -> {
               
      
      JavaFXUtil.runAfterCurrent(() -> {
      if (!errorLabelEmpty.get())
      animate();                 
      });
   });
return okWrapper;         
}
       
return normal;     
}

   
private void animate()
   {
   if (animation == null)
       {            
      animation = new RotateTransition(Duration.millis(70), errorLabel);
      animation.setByAngle(5);
           
      
      animation.setAutoReverse(true);
      animation.setCycleCount(4);
           
      
      animation.setOnFinished(ev -> {
               
      animation = null;             
      });
   animation.play();         
   }     
}

   



| Returns the reference to the actual OK button (e.g. for disabling it).
| This is different than lookupButton(ButtonType.OK) which will only
| return the wrapper for the button, not the button itself.
|
public Button getOKButton()
   {        
   return okButton;     
   } 
}