org.eclipse.jst.server.tomcat.ui.internal.editor.MimeMappingDialog.java Source code

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Here is the source code for org.eclipse.jst.server.tomcat.ui.internal.editor.MimeMappingDialog.java

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/*******************************************************************************
 * Copyright (c) 2003, 2005 IBM Corporation 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:
 *     IBM Corporation - Initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.server.tomcat.ui.internal.editor;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jst.server.tomcat.core.internal.MimeMapping;
import org.eclipse.jst.server.tomcat.ui.internal.ContextIds;
import org.eclipse.jst.server.tomcat.ui.internal.Messages;
import org.eclipse.jst.server.tomcat.ui.internal.TomcatUIPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
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 org.eclipse.ui.PlatformUI;
import org.eclipse.ui.help.IWorkbenchHelpSystem;

/**
 * Dialog to add or modify mime mappings.
 */
public class MimeMappingDialog extends Dialog {
    protected MimeMapping map;
    protected boolean isEdit;

    /**
     * MimeMappingDialog constructor comment.
     * @param parentShell org.eclipse.swt.widgets.Shell
     */
    public MimeMappingDialog(Shell parentShell) {
        this(parentShell, new MimeMapping("", ""));
        isEdit = false;
    }

    /**
     * MimeMappingDialog constructor.
     * 
     * @param parentShell a shell
     * @param map a mime mapping
     */
    public MimeMappingDialog(Shell parentShell, MimeMapping map) {
        super(parentShell);
        this.map = map;
        isEdit = true;
    }

    /**
     *
     */
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setImage(TomcatUIPlugin.getImage(TomcatUIPlugin.IMG_MIME_MAPPING));
        if (isEdit)
            newShell.setText(Messages.configurationEditorMimeMapppingDialogTitleEdit);
        else
            newShell.setText(Messages.configurationEditorMimeMapppingDialogTitleAdd);
    }

    /**
     * Creates and returns the contents of the upper part 
     * of this dialog (above the button bar).
     * <p>
     * The <code>Dialog</code> implementation of this framework method
     * creates and returns a new <code>Composite</code> with
     * standard margins and spacing. Subclasses should override.
     * </p>
     *
     * @param parent the parent composite to contain the dialog area
     * @return the dialog area control
     */
    protected Control createDialogArea(Composite parent) {
        // create a composite with standard margins and spacing
        Composite composite = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
        layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
        layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
        layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
        composite.setLayout(layout);
        composite.setLayoutData(new GridData(GridData.FILL_BOTH));
        composite.setFont(parent.getFont());
        IWorkbenchHelpSystem whs = PlatformUI.getWorkbench().getHelpSystem();
        whs.setHelp(composite, ContextIds.CONFIGURATION_EDITOR_MAPPING_DIALOG);

        new Label(composite, SWT.NONE).setText(Messages.configurationEditorMimeMapppingDialogMimeType);
        final Text type = new Text(composite, SWT.BORDER);
        GridData data = new GridData();
        data.widthHint = 150;
        type.setLayoutData(data);
        type.setText(map.getMimeType());
        type.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                map = new MimeMapping(map.getExtension(), type.getText());
                validate();
            }
        });
        whs.setHelp(type, ContextIds.CONFIGURATION_EDITOR_MAPPING_DIALOG_TYPE);

        new Label(composite, SWT.NONE).setText(Messages.configurationEditorMimeMapppingDialogMimeExtension);
        final Text extension = new Text(composite, SWT.BORDER);
        data = new GridData();
        data.widthHint = 150;
        extension.setLayoutData(data);
        extension.setText(map.getExtension());
        extension.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                map = new MimeMapping(extension.getText(), map.getMimeType());
                validate();
            }
        });
        whs.setHelp(extension, ContextIds.CONFIGURATION_EDITOR_MAPPING_DIALOG_EXTENSION);

        Dialog.applyDialogFont(composite);

        return composite;
    }

    protected Control createButtonBar(Composite parent) {
        Control control = super.createButtonBar(parent);
        validate();

        return control;
    }

    protected void validate() {
        boolean ok = true;
        if (map.getExtension() == null || map.getExtension().length() < 1)
            ok = false;
        if (map.getMimeType() == null || map.getMimeType().length() < 1)
            ok = false;
        getButton(IDialogConstants.OK_ID).setEnabled(ok);
    }

    /**
     * Return the mime mapping.
     *
     * @return org.eclipse.jst.server.tomcat.MimeMapping
     */
    public MimeMapping getMimeMapping() {
        return map;
    }
}