at.bestsolution.code.swt.resources.handlers.NewFileHandler.java Source code

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Here is the source code for at.bestsolution.code.swt.resources.handlers.NewFileHandler.java

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/*******************************************************************************
* Copyright (c) 2016 BestSolution.at and others.
* 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:
*    Tom Schindl<tom.schindl@bestsolution.at> - initial API and implementation
*******************************************************************************/
package at.bestsolution.code.swt.resources.handlers;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.inject.Named;

import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Path;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

import at.bestsolution.code.swt.resources.WorkspaceViewer;

public class NewFileHandler {
    @Execute
    public void createFile(Shell shell, @Named(WorkspaceViewer.SELECTED_RESOURCE_KEY) IResource selectedResource) {
        IContainer container = null;
        if (selectedResource instanceof IContainer) {
            container = (IContainer) selectedResource;
        } else {
            container = selectedResource.getParent();
        }
        if (container != null) {
            NewFileDialog d = new NewFileDialog(shell, container);
            d.open();
        } else {
            MessageDialog.openInformation(shell, "No parent selected", "You need to select a parent folder");
        }
    }

    static class NewFileDialog extends TitleAreaDialog {
        private final IContainer container;
        private Text folderName;

        public NewFileDialog(Shell parentShell, IContainer container) {
            super(parentShell);
            this.container = container;
        }

        @Override
        protected Control createDialogArea(Composite parent) {
            Composite c = (Composite) super.createDialogArea(parent);

            Composite container = new Composite(c, SWT.NONE);
            container.setLayoutData(new GridData(GridData.FILL_BOTH));
            container.setLayout(new GridLayout(2, false));

            {
                Label l = new Label(container, SWT.NONE);
                l.setText("File Name");

                folderName = new Text(container, SWT.BORDER);
                folderName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
            }

            return c;
        }

        @Override
        protected void okPressed() {
            if (!folderName.getText().trim().isEmpty()) {
                IFile folder = container.getFile(new Path(folderName.getText().trim()));
                if (folder.exists()) {
                    setErrorMessage("The folder named '" + folderName.getText().trim() + "' exists already");
                } else {
                    try (InputStream in = new ByteArrayInputStream(new byte[0])) {
                        folder.create(in, true, null);
                        super.okPressed();
                    } catch (CoreException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    } catch (IOException e1) {
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    }
                }
            }
        }
    }
}