net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/wizards/PHPFileWizardPage.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 PHPFileWizardPage extends WizardPage {
  44   private static final String INITIAL_FILENAME = "file.php";
  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 PHPFileWizardPage(ISelection selection) {
  58     super("wizardPage");
  59     setTitle(PHPWizardMessages.getString("WizardPage.title"));
  60     setDescription(PHPWizardMessages.getString("WizardPage.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[] results = dialog.getResult();
 143       if (results.length == 1) {
 144           Object result=results[0];
 145           if (result instanceof IPath) {
 146                   IPath ipath = (IPath) result;
 147                   containerText.setText(ipath.toString());
 148           }
 149       }
 150     }
 151   }
 152
 153   /**
 154    * Ensures that both text fields are set.
 155    */
 156   private void dialogChanged() {
 157     String container = getContainerName();
 158     String fileName = getFileName();
 159
 160     if (container.length() == 0) {
 161       updateStatus(PHPWizardMessages
 162           .getString("WizardPage.containerMustBeSpecified"));
 163       return;
 164     }
 165     if (fileName.length() == 0) {
 166       updateStatus("WizardPage.nameMustBeSpecified");
 167       return;
 168     }
 169
 170     updateStatus(null);
 171   }
 172
 173   private void updateStatus(String message) {
 174     setErrorMessage(message);
 175     setPageComplete(message == null);
 176   }
 177
 178   public String getContainerName() {
 179     return containerText.getText();
 180   }
 181
 182   public String getFileName() {
 183     return fileText.getText();
 184   }
 185
 186   /**
 187    * @see WizardPage#isPageComplete()
 188    */
 189   public boolean isPageComplete() {
 190     return !checkFolderForExistingFile() && super.isPageComplete();
 191   }
 192
 193   /**
 194          * Finds the current directory where the file should be created
 195          */
 196         protected boolean checkFolderForExistingFile() {
 197                 IContainer container = getFileContainer();
 198                 if (container != null) {
 199                         IResource file = container.getFile(new Path(fileText.getText()
 200                                         .trim()));
 201                         if (file != null && file.exists()) {
 202                                 this.setErrorMessage(PHPWizardMessages
 203                                                 .getString("WizardPage.fileAlreadyExists"));
 204                                 return true;
 205                         }
 206
 207                         ((PHPFileWizard) this.getWizard()).setFileName(fileText.getText()
 208                                         .trim());
 209                 }
 210                 return false;
 211         }
 212
 213         private IContainer getFileContainer() {
 214                 if (containerText.getText() != null) {
 215                         IPath containerPath = new Path(containerText.getText().trim());
 216                         IContainer container;
 217                         if (containerPath.segmentCount() > 1) {
 218                                 container = ResourcesPlugin.getWorkspace().getRoot().getFolder(
 219                                                 containerPath);
 220                         } else {
 221                                 // this is a project
 222                                 container = ResourcesPlugin.getWorkspace().getRoot()
 223                                                 .getProject(containerText.getText().trim());
 224                         }
 225                         if (container != null && container.exists()) {
 226                                 return container;
 227                         }
 228                 }
 229                 return null;
 230         }
 231
 232         public void setVisible(boolean visible) {
 233                 super.setVisible(visible);
 234                 if (visible) {
 235                         String fileName=fileText.getText().trim();
 236                         if (getFileContainer() != null && fileName.equalsIgnoreCase(INITIAL_FILENAME)) {
 237                                 fileText.setFocus();
 238                                 fileText.setText(fileName);
 239                                 fileText.setSelection(0, fileName.length()-(new Path(INITIAL_FILENAME)).getFileExtension().length()-1);
 240                         }
 241                 }
 242         }
 243
 244 }