com.eco.bio7.scenebuilder.wizard.JavaFXWizardPage.java Source code

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Here is the source code for com.eco.bio7.scenebuilder.wizard.JavaFXWizardPage.java

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/*******************************************************************************
 * Copyright (c) 2015 M. Austenfeld
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     M. Austenfeld
 *******************************************************************************/
package com.eco.bio7.scenebuilder.wizard;

import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.dialogs.ContainerSelectionDialog;

public class JavaFXWizardPage extends WizardPage {
    private Text containerText;

    private Text fileText;

    private ISelection selection;

    public JavaFXWizardPage(ISelection selection) {
        super("wizardPage");
        setTitle("JavaFX SceneBuilder Wizard");
        setDescription(
                "This wizard creates two new file with *.java and *.fxml extensions that can be opened by the Java-editor and e.g. JavaFX Scene Builder.");
        this.selection = selection;
    }

    public void createControl(Composite parent) {
        Composite container = new Composite(parent, SWT.NULL);
        GridLayout layout = new GridLayout();
        container.setLayout(layout);
        layout.numColumns = 3;
        layout.verticalSpacing = 9;
        Label label = new Label(container, SWT.NULL);
        label.setText("&Container:");

        containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
        GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        containerText.setLayoutData(gd);
        containerText.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                dialogChanged();
            }
        });

        Button button = new Button(container, SWT.PUSH);
        button.setText("Browse...");
        button.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                handleBrowse();
            }
        });
        label = new Label(container, SWT.NULL);
        label.setText("&File name:");

        fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
        gd = new GridData(GridData.FILL_HORIZONTAL);
        fileText.setLayoutData(gd);
        fileText.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                dialogChanged();
            }
        });
        initialize();
        dialogChanged();
        setControl(container);
    }

    private void initialize() {
        if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) {
            IStructuredSelection ssel = (IStructuredSelection) selection;
            if (ssel.size() > 1)
                return;
            Object obj = ssel.getFirstElement();
            if (obj instanceof IResource) {
                IContainer container;
                if (obj instanceof IContainer)
                    container = (IContainer) obj;
                else
                    container = ((IResource) obj).getParent();
                containerText.setText(container.getFullPath().toString());
            }
        }
        fileText.setText("Main.java");
    }

    private void handleBrowse() {
        ContainerSelectionDialog dialog = new ContainerSelectionDialog(getShell(),
                ResourcesPlugin.getWorkspace().getRoot(), false, "Select new file container");
        if (dialog.open() == ContainerSelectionDialog.OK) {
            Object[] result = dialog.getResult();
            if (result.length == 1) {
                containerText.setText(((Path) result[0]).toString());
            }
        }
    }

    private void dialogChanged() {
        IResource container = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(getContainerName()));
        String fileName = getFileName();

        if (getContainerName().length() == 0) {
            updateStatus("File container must be specified");
            return;
        }
        if (container == null || (container.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) {
            updateStatus("File container must exist");
            return;
        }
        if (!container.isAccessible()) {
            updateStatus("Project must be writable");
            return;
        }
        if (fileName.length() == 0) {
            updateStatus("File name must be specified");
            return;
        }
        final IContainer containerFolder = WizardUtil.getContainer(getContainerName());
        if (fileName != null && !fileName.equals("") && containerFolder.getFile(new Path(fileName)).exists()) { //$NON-NLS-1$
            updateStatus("File with that name already exists!");
            return;
        }
        if (fileName.replace('\\', '/').indexOf('/', 1) > 0) {
            updateStatus("File name must be valid");
            return;
        }
        int dotLoc = fileName.lastIndexOf('.');
        if (dotLoc != -1) {
            String ext = fileName.substring(dotLoc + 1);
            if (ext.equalsIgnoreCase("java") == false) {
                updateStatus("File extension must be \"java\"");
                return;
            }
        }
        updateStatus(null);
    }

    private void updateStatus(String message) {
        setErrorMessage(message);
        setPageComplete(message == null);
    }

    public String getContainerName() {
        return containerText.getText();
    }

    public String getFileName() {
        return fileText.getText();
    }
}