StatusDownloadController.java

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package socius.telas.statusdownload;

import java.net.URL;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Dialogs;
import javafx.scene.control.Label;
import javafx.scene.control.ProgressIndicator;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;
import javafx.util.Duration;
import socius.stream.Download;
import socius.telas.principal.PrincipalController;

/**
 * FXML Controller class
 *
 * @author Ana
 */
public class StatusDownloadController implements Initializable {

    /**
     * Initializes the controller class.
     */
    @FXML
    private ProgressIndicator indicador;
    @FXML
    private Label lblProgresso;
    @FXML
    private Label lblNomeArquivo;
    private Timeline atualizaProgress;
    private Download download;
    private Stage stage;
    private PrincipalController pcl;

    @Override
    public void initialize(URL url, ResourceBundle rb) {

        atualizaProgress = new Timeline(new KeyFrame(
                Duration.seconds(0.5), new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                try {
                    float transferidos = download.getBytesTransferidos();
                    float total = download.getBystesTotais();
                    float porcentagem = transferidos / total;


                    StringBuilder progresso = new StringBuilder();
                    progresso.append(String.format("%.2f", transferidos / 1024 / 1024, transferidos));
                    progresso.append(" MB de ");
                    progresso.append(String.format("%.2f", total / 1024 / 1024, transferidos));
                    progresso.append(" MB transferidos.");


                    lblProgresso.setText(progresso.toString());
                    lblNomeArquivo.setText(download.getNomeArquivo());
                    indicador.setProgress(porcentagem);
                    
                    if(porcentagem >= 1 || transferidos >= total) {
                        // Retira confirmação para fechar tela
                        stage.setOnCloseRequest(null);
                        // Interrompe atualização da tela
                        atualizaProgress.stop();
                        pcl.atualizaListaMeusArquivos();
                    }

                } catch (InterruptedException ex) {
                    Logger.getLogger(StatusDownloadController.class.getName()).log(Level.SEVERE, null, ex);
                }

            }
        }));

        atualizaProgress.setCycleCount(Timeline.INDEFINITE);
        atualizaProgress.play();
    }

    public void setRequiredData(Stage stg, Download dw, PrincipalController pctl) {
        this.stage = stg;
        this.download = dw;
        this.pcl = pctl;
        
        // Confirmação para fechar tela
        stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
            @Override
            public void handle(WindowEvent t) {
                Dialogs.DialogResponse res = Dialogs.showConfirmDialog(
                        stage, "Tem certeza de que deseja cancelar o download?",
                        "Download", "Download");

                if (res.equals(Dialogs.DialogResponse.YES)) {
                    download.interromper();
                    pcl.atualizaListaMeusArquivos();
                    stage.close();
                } else {
                    // Cancela fechamento da janela
                    t.consume();
                }
            }
        });
    }
}