Java tutorial
/** * Aptana Studio * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved. * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions). * Please see the license.html included with this distribution for details. * Any modifications to this file must keep this entire header intact. */ package com.aptana.webserver.ui.internal; import java.io.File; import java.net.MalformedURLException; import java.net.URL; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.Path; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.layout.PixelConverter; import org.eclipse.jface.window.IShellProvider; 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.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.DirectoryDialog; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import com.aptana.core.CoreStrings; import com.aptana.core.logging.IdeLog; import com.aptana.core.util.StringUtil; import com.aptana.ui.IPropertyDialog; import com.aptana.ui.IPropertyDialogProvider; import com.aptana.webserver.core.SimpleWebServer; import com.aptana.webserver.core.WebServerCorePlugin; import com.aptana.webserver.ui.WebServerUIPlugin; /** * @author Max Stepanov */ public class SimpleWebServerPropertyDialog extends TitleAreaDialog implements IPropertyDialog { private static final int LABEL_WIDTH = 70; private SimpleWebServer source; private Text nameText; private Text baseUrlText; private Text documentRootText; private ModifyListener modifyListener; /** * @param parentShell */ public SimpleWebServerPropertyDialog(Shell parentShell) { super(parentShell); setHelpAvailable(false); } /* * (non-Javadoc) * @see com.aptana.ui.IPropertyDialog#getPropertySource() */ public Object getPropertySource() { return source; } /* * (non-Javadoc) * @see com.aptana.ui.IPropertyDialog#setPropertySource(java.lang.Object) */ public void setPropertySource(Object element) { source = null; if (element instanceof SimpleWebServer) { source = (SimpleWebServer) element; } } @Override protected Control createDialogArea(Composite parent) { Composite dialogArea = (Composite) super.createDialogArea(parent); setTitle(Messages.SimpleWebServerPropertyDialog_Title); getShell().setText(Messages.SimpleWebServerPropertyDialog_ShellTitle); Composite composite = new Composite(dialogArea, SWT.NONE); composite.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); PixelConverter converter = new PixelConverter(composite); composite.setLayout(GridLayoutFactory.swtDefaults() .margins(converter.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN), converter.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN)) .spacing(converter.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING), converter.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING)) .numColumns(3).create()); /* row 1 */ Label label = new Label(composite, SWT.NONE); label.setLayoutData(GridDataFactory.swtDefaults() .hint(new PixelConverter(label).convertHorizontalDLUsToPixels(LABEL_WIDTH), SWT.DEFAULT).create()); label.setText(StringUtil.makeFormLabel(Messages.SimpleWebServerPropertyDialog_Name_Label)); nameText = new Text(composite, SWT.SINGLE | SWT.BORDER); nameText.setLayoutData(GridDataFactory.fillDefaults() .hint(convertHorizontalDLUsToPixels(IDialogConstants.ENTRY_FIELD_WIDTH), SWT.DEFAULT).span(2, 1) .grab(true, false).create()); /* row 1 */ label = new Label(composite, SWT.NONE); label.setLayoutData(GridDataFactory.swtDefaults() .hint(new PixelConverter(label).convertHorizontalDLUsToPixels(LABEL_WIDTH), SWT.DEFAULT).create()); label.setText(StringUtil.makeFormLabel(Messages.SimpleWebServerPropertyDialog_BaseURL_Label)); baseUrlText = new Text(composite, SWT.SINGLE | SWT.BORDER); baseUrlText.setLayoutData(GridDataFactory.swtDefaults() .hint(new PixelConverter(baseUrlText) .convertHorizontalDLUsToPixels(IDialogConstants.ENTRY_FIELD_WIDTH), SWT.DEFAULT) .span(2, 1).align(SWT.FILL, SWT.CENTER).grab(true, false).create()); baseUrlText.setText("http://"); //$NON-NLS-1$ /* row 2 */ label = new Label(composite, SWT.NONE); label.setLayoutData(GridDataFactory.swtDefaults() .hint(new PixelConverter(label).convertHorizontalDLUsToPixels(LABEL_WIDTH), SWT.DEFAULT).create()); label.setText(StringUtil.makeFormLabel(Messages.SimpleWebServerPropertyDialog_DocRoot_Label)); documentRootText = new Text(composite, SWT.SINGLE | SWT.BORDER); documentRootText.setLayoutData(GridDataFactory.swtDefaults() .hint(new PixelConverter(documentRootText) .convertHorizontalDLUsToPixels(IDialogConstants.ENTRY_FIELD_WIDTH), SWT.DEFAULT) .grab(true, false).create()); Button browseButton = new Button(composite, SWT.PUSH); browseButton.setText('&' + StringUtil.ellipsify(CoreStrings.BROWSE)); browseButton.setLayoutData(GridDataFactory.fillDefaults() .hint(Math.max( new PixelConverter(browseButton) .convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH), browseButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x), SWT.DEFAULT) .create()); /* -- */ browseButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { browseFileSystem(); } }); if (source != null) { String name = source.getName(); nameText.setText((name != null) ? name : StringUtil.EMPTY); URL url = source.getBaseURL(); if (url != null) { baseUrlText.setText(url.toExternalForm()); } IPath path = source.getDocumentRootPath(); if (path != null) { documentRootText.setText(path.toOSString()); } } addListeners(); return dialogArea; } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.TitleAreaDialog#createContents(org.eclipse. swt.widgets.Composite) */ @Override protected Control createContents(Composite parent) { try { return super.createContents(parent); } finally { validate(); } } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#okPressed() */ @Override protected void okPressed() { if (!isValid()) { return; } if (source != null) { source.setName(nameText.getText()); try { source.setBaseURL(new URL(baseUrlText.getText())); } catch (MalformedURLException e) { IdeLog.logError(WebServerUIPlugin.getDefault(), e); } IPath path = Path.fromOSString(documentRootText.getText()); source.setDocumentRootPath(path); } WebServerCorePlugin.getDefault().saveServerConfigurations(); super.okPressed(); } private boolean isValid() { // TODO Ensure name is unique! String message = null; if (nameText.getText().length() == 0) { message = Messages.SimpleWebServerPropertyDialog_EmptyNameError; } else { try { if (new URL(baseUrlText.getText()).getHost().length() == 0) { message = Messages.SimpleWebServerPropertyDialog_InvalidURLError; } } catch (MalformedURLException e) { message = Messages.SimpleWebServerPropertyDialog_InvalidURLError; } } if (message == null) { File file = Path.fromOSString(documentRootText.getText()).toFile(); if (!file.exists() || !file.isDirectory()) { message = Messages.SimpleWebServerPropertyDialog_DocumentRootError; } } if (message != null) { setErrorMessage(message); } else { setErrorMessage(null); setMessage(null); return true; } return false; } private void validate() { boolean valid = isValid(); getButton(OK).setEnabled(valid); } protected void addListeners() { if (modifyListener == null) { modifyListener = new ModifyListener() { public void modifyText(ModifyEvent e) { validate(); } }; } nameText.addModifyListener(modifyListener); baseUrlText.addModifyListener(modifyListener); documentRootText.addModifyListener(modifyListener); } protected void removeListeners() { if (modifyListener != null) { nameText.removeModifyListener(modifyListener); baseUrlText.removeModifyListener(modifyListener); documentRootText.removeModifyListener(modifyListener); } } private void browseFileSystem() { DirectoryDialog dlg = new DirectoryDialog(getShell()); dlg.setFilterPath(documentRootText.getText()); String path = dlg.open(); if (path != null) { documentRootText.setText(Path.fromOSString(path).toPortableString()); } } public static class Provider implements IPropertyDialogProvider { /* * (non-Javadoc) * @see com.aptana.ui.IPropertyDialogProvider#createPropertyDialog(org.eclipse .jface.window.IShellProvider) */ public Dialog createPropertyDialog(IShellProvider shellProvider) { return new SimpleWebServerPropertyDialog(shellProvider.getShell()); } } }