net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/wizards/HTMLFileWizardPage.java

   1 package net.sourceforge.phpeclipse.wizards;
   2
   3 /**********************************************************************
   4  Copyright (c) 2000, 2002 IBM Corp. and others.
   5  All rights reserved. This program and the accompanying materials
   6  are made available under the terms of the Common Public License v1.0
   7  which accompanies this distribution, and is available at
   8  http://www.eclipse.org/legal/cpl-v10.html
   9
  10  Contributors:
  11  IBM Corporation - Initial implementation
  12  www.phpeclipse.de
  13  **********************************************************************/
  14
  15 import org.eclipse.core.resources.IContainer;
  16 import org.eclipse.core.resources.IResource;
  17 import org.eclipse.core.resources.ResourcesPlugin;
  18 import org.eclipse.core.runtime.IPath;
  19 import org.eclipse.core.runtime.Path;
  20 import org.eclipse.jface.dialogs.IDialogPage;
  21 import org.eclipse.jface.viewers.ISelection;
  22 import org.eclipse.jface.viewers.IStructuredSelection;
  23 import org.eclipse.jface.wizard.WizardPage;
  24 import org.eclipse.swt.SWT;
  25 import org.eclipse.swt.events.ModifyEvent;
  26 import org.eclipse.swt.events.ModifyListener;
  27 import org.eclipse.swt.events.SelectionAdapter;
  28 import org.eclipse.swt.events.SelectionEvent;
  29 import org.eclipse.swt.layout.GridData;
  30 import org.eclipse.swt.layout.GridLayout;
  31 import org.eclipse.swt.widgets.Button;
  32 import org.eclipse.swt.widgets.Composite;
  33 import org.eclipse.swt.widgets.Label;
  34 import org.eclipse.swt.widgets.Text;
  35 import org.eclipse.ui.dialogs.ContainerSelectionDialog;
  36
  37 /**
  38  * The "New" wizard page allows setting the container for the new file as well
  39  * as the file name. The page will only accept file name without the extension
  40  * OR with the extension that matches the expected one (cs).
  41  */
  42
  43 public class HTMLFileWizardPage extends WizardPage {
  44   private static final String INITIAL_FILENAME = "file.html";
  45
  46 private Text containerText;
  47
  48   private Text fileText;
  49
  50   private ISelection selection;
  51
  52   /**
  53    * Constructor for SampleNewWizardPage.
  54    *
  55    * @param pageName
  56    */
  57   public HTMLFileWizardPage(ISelection selection) {
  58     super("wizardPage");
  59     setTitle(PHPWizardMessages.getString("WizardPage.html.title"));
  60     setDescription(PHPWizardMessages.getString("WizardPage.html.description"));
  61     this.selection = selection;
  62   }
  63
  64   /**
  65    * @see IDialogPage#createControl(Composite)
  66    */
  67   public void createControl(Composite parent) {
  68     Composite container = new Composite(parent, SWT.NULL);
  69     GridLayout layout = new GridLayout();
  70     container.setLayout(layout);
  71     layout.numColumns = 3;
  72     layout.verticalSpacing = 9;
  73     Label label = new Label(container, SWT.NULL);
  74     label.setText(PHPWizardMessages.getString("WizardPage.containerLabel"));
  75
  76     containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
  77     GridData gd = new GridData(GridData.FILL_HORIZONTAL);
  78     containerText.setLayoutData(gd);
  79     containerText.addModifyListener(new ModifyListener() {
  80       public void modifyText(ModifyEvent e) {
  81         dialogChanged();
  82       }
  83     });
  84
  85     Button button = new Button(container, SWT.PUSH);
  86     button.setText(PHPWizardMessages.getString("WizardPage.browseButtonText"));
  87     button.addSelectionListener(new SelectionAdapter() {
  88       public void widgetSelected(SelectionEvent e) {
  89         handleBrowse();
  90       }
  91     });
  92     label = new Label(container, SWT.NULL);
  93     label.setText(PHPWizardMessages.getString("WizardPage.fileLabel"));
  94
  95     fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
  96     gd = new GridData(GridData.FILL_HORIZONTAL);
  97     fileText.setLayoutData(gd);
  98     fileText.addModifyListener(new ModifyListener() {
  99       public void modifyText(ModifyEvent e) {
 100         dialogChanged();
 101       }
 102     });
 103     initialize();
 104     dialogChanged();
 105     setControl(container);
 106   }
 107
 108   /**
 109    * Tests if the current workbench selection is a suitable container to use.
 110    */
 111
 112   private void initialize() {
 113     if (selection != null && selection.isEmpty() == false
 114         && selection instanceof IStructuredSelection) {
 115       IStructuredSelection ssel = (IStructuredSelection) selection;
 116       if (ssel.size() > 1)
 117         return;
 118       Object obj = ssel.getFirstElement();
 119       if (obj instanceof IResource) {
 120         IContainer container;
 121         if (obj instanceof IContainer)
 122           container = (IContainer) obj;
 123         else
 124           container = ((IResource) obj).getParent();
 125         containerText.setText(container.getFullPath().toString());
 126         fileText.setFocus();
 127       }
 128     }
 129     fileText.setText(INITIAL_FILENAME);
 130   }
 131
 132   /**
 133    * Uses the standard container selection dialog to choose the new value for
 134    * the container field.
 135    */
 136
 137   private void handleBrowse() {
 138     ContainerSelectionDialog dialog = new ContainerSelectionDialog(getShell(),
 139         ResourcesPlugin.getWorkspace().getRoot(), false, PHPWizardMessages
 140             .getString("WizardPage.selectNewFileContainer"));
 141     if (dialog.open() == ContainerSelectionDialog.OK) {
 142       Object[] result = dialog.getResult();
 143       if (result.length == 1) {
 144         IContainer container = (IContainer) result[0];
 145         containerText.setText(container.getFullPath().toString());
 146       }
 147     }
 148   }
 149
 150   /**
 151    * Ensures that both text fields are set.
 152    */
 153   private void dialogChanged() {
 154     String container = getContainerName();
 155     String fileName = getFileName();
 156
 157     if (container.length() == 0) {
 158       updateStatus(PHPWizardMessages
 159           .getString("WizardPage.containerMustBeSpecified"));
 160       return;
 161     }
 162     if (fileName.length() == 0) {
 163       updateStatus("WizardPage.nameMustBeSpecified");
 164       return;
 165     }
 166
 167     updateStatus(null);
 168   }
 169
 170   private void updateStatus(String message) {
 171     setErrorMessage(message);
 172     setPageComplete(message == null);
 173   }
 174
 175   public String getContainerName() {
 176     return containerText.getText();
 177   }
 178
 179   public String getFileName() {
 180     return fileText.getText();
 181   }
 182
 183   /**
 184    * @see WizardPage#isPageComplete()
 185    */
 186   public boolean isPageComplete() {
 187     return !checkFolderForExistingFile() && super.isPageComplete();
 188   }
 189
 190   /**
 191          * Finds the current directory where the file should be created
 192          */
 193         protected boolean checkFolderForExistingFile() {
 194                 IContainer container = getFileContainer();
 195                 if (container != null) {
 196                         IResource file = container.getFile(new Path(fileText.getText()
 197                                         .trim()));
 198                         if (file != null && file.exists()) {
 199                                 this.setErrorMessage(PHPWizardMessages
 200                                                 .getString("WizardPage.fileAlreadyExists"));
 201                                 return true;
 202                         }
 203                 }
 204                 return false;
 205         }
 206
 207         private IContainer getFileContainer() {
 208                 if (containerText.getText() != null) {
 209                         IPath containerPath = new Path(containerText.getText().trim());
 210                         IContainer container;
 211                         if (containerPath.segmentCount() > 1) {
 212                                 container = ResourcesPlugin.getWorkspace().getRoot().getFolder(
 213                                                 containerPath);
 214                         } else {
 215                                 // this is a project
 216                                 container = ResourcesPlugin.getWorkspace().getRoot()
 217                                                 .getProject(containerText.getText().trim());
 218                         }
 219                         if (container != null && container.exists()) {
 220                                 return container;
 221                         }
 222                 }
 223                 return null;
 224         }
 225
 226         public void setVisible(boolean visible) {
 227                 super.setVisible(visible);
 228                 if (visible) {
 229                         String fileName=fileText.getText().trim();
 230                         if (getFileContainer() != null && fileName.equalsIgnoreCase(INITIAL_FILENAME)) {
 231                                 fileText.setFocus();
 232                                 fileText.setText(fileName);
 233                                 fileText.setSelection(0, fileName.length()-(new Path(INITIAL_FILENAME)).getFileExtension().length()-1);
 234                         }
 235                 }
 236         }
 237
 238 }