Avoid NPE for "mark occurences"
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / wizards / PHPFileWizardPage.java
index c931b92..cb4cb35 100644 (file)
@@ -1,24 +1,23 @@
 package net.sourceforge.phpeclipse.wizards;
 
 /**********************************************************************
-Copyright (c) 2000, 2002 IBM Corp. and others.
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Common Public License v1.0
-which accompanies this distribution, and is available at
-http://www.eclipse.org/legal/cpl-v10.html
+ Copyright (c) 2000, 2002 IBM Corp. and others.
+ All rights reserved. This program and the accompanying materials
+ are made available under the terms of the Common Public License v1.0
+ which accompanies this distribution, and is available at
+ http://www.eclipse.org/legal/cpl-v10.html
 
-Contributors:
-    IBM Corporation - Initial implementation
-    Klaus Hartlage - www.eclipseproject.de
-**********************************************************************/
+ Contributors:
+ IBM Corporation - Initial implementation
+ www.phpeclipse.de
+ **********************************************************************/
 
 import org.eclipse.core.resources.IContainer;
-import org.eclipse.core.resources.IFolder;
-import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.Path;
+import org.eclipse.jface.dialogs.IDialogPage;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.wizard.WizardPage;
@@ -36,199 +35,210 @@ import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.dialogs.ContainerSelectionDialog;
 
 /**
- * The "New" wizard page allows setting the container for
- * the new file as well as the file name. The page
- * will only accept file name without the extension OR
- * with the extension that matches the expected one (cs).
+ * The "New" wizard page allows setting the container for the new file as well
+ * as the file name. The page will only accept file name without the extension
+ * OR with the extension that matches the expected one (cs).
  */
 
 public class PHPFileWizardPage extends WizardPage {
-       private Text containerText;
-       private Text fileText;
-       private ISelection selection;
-
-       /**
-        * Constructor for SampleNewWizardPage.
-        * @param pageName
-        */
-       public PHPFileWizardPage(ISelection selection) {
-               super("wizardPage");
-               setTitle(PHPWizardMessages.getString("WizardPage.title"));
-               setDescription(PHPWizardMessages.getString("WizardPage.description"));
-               this.selection = selection;
-       }
-
-       /**
-        * @see IDialogPage#createControl(Composite)
-        */
-       public void createControl(Composite parent) {
-               Composite container = new Composite(parent, SWT.NULL);
-               GridLayout layout = new GridLayout();
-               container.setLayout(layout);
-               layout.numColumns = 3;
-               layout.verticalSpacing = 9;
-               Label label = new Label(container, SWT.NULL);
-               label.setText(PHPWizardMessages.getString("WizardPage.containerLabel"));
-
-               containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
-               GridData gd = new GridData(GridData.FILL_HORIZONTAL);
-               containerText.setLayoutData(gd);
-               containerText.addModifyListener(new ModifyListener() {
-                       public void modifyText(ModifyEvent e) {
-                               dialogChanged();
-                       }
-               });
-
-               Button button = new Button(container, SWT.PUSH);
-               button.setText(PHPWizardMessages.getString("WizardPage.browseButtonText"));
-               button.addSelectionListener(new SelectionAdapter() {
-                       public void widgetSelected(SelectionEvent e) {
-                               handleBrowse();
-                       }
-               });
-               label = new Label(container, SWT.NULL);
-               label.setText(PHPWizardMessages.getString("WizardPage.fileLabel"));
-
-               fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
-               gd = new GridData(GridData.FILL_HORIZONTAL);
-               fileText.setLayoutData(gd);
-               fileText.addModifyListener(new ModifyListener() {
-                       public void modifyText(ModifyEvent e) {
-                               dialogChanged();
-                       }
-               });
-               initialize();
-               dialogChanged();
-               setControl(container);
-       }
-       
-       /**
-        * Tests if the current workbench selection is a suitable
-        * container to use.
-        */
-       
-       private void initialize() {
-               if (selection!=null && selection.isEmpty()==false && selection instanceof IStructuredSelection) {
-                       IStructuredSelection ssel = (IStructuredSelection)selection;
-                       if (ssel.size()>1) return;
-                       Object obj = ssel.getFirstElement();
-                       if (obj instanceof IResource) {
-                               IContainer container;
-                               if (obj instanceof IContainer)
-                                       container = (IContainer)obj;
-                               else
-                                       container = ((IResource)obj).getParent();
-                               containerText.setText(container.getFullPath().toString());
-                       }
-               }
-               fileText.setText("index.php");
-       }
-       
-       /**
-        * Uses the standard container selection dialog to
-        * choose the new value for the container field.
+  private static final String INITIAL_FILENAME = "file.php";
+
+private Text containerText;
+
+  private Text fileText;
+
+  private ISelection selection;
+
+  /**
+   * Constructor for SampleNewWizardPage.
+   * 
+   * @param pageName
+   */
+  public PHPFileWizardPage(ISelection selection) {
+    super("wizardPage");
+    setTitle(PHPWizardMessages.getString("WizardPage.title"));
+    setDescription(PHPWizardMessages.getString("WizardPage.description"));
+    this.selection = selection;
+  }
+
+  /**
+   * @see IDialogPage#createControl(Composite)
+   */
+  public void createControl(Composite parent) {
+    Composite container = new Composite(parent, SWT.NULL);
+    GridLayout layout = new GridLayout();
+    container.setLayout(layout);
+    layout.numColumns = 3;
+    layout.verticalSpacing = 9;
+    Label label = new Label(container, SWT.NULL);
+    label.setText(PHPWizardMessages.getString("WizardPage.containerLabel"));
+
+    containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
+    GridData gd = new GridData(GridData.FILL_HORIZONTAL);
+    containerText.setLayoutData(gd);
+    containerText.addModifyListener(new ModifyListener() {
+      public void modifyText(ModifyEvent e) {
+        dialogChanged();
+      }
+    });
+
+    Button button = new Button(container, SWT.PUSH);
+    button.setText(PHPWizardMessages.getString("WizardPage.browseButtonText"));
+    button.addSelectionListener(new SelectionAdapter() {
+      public void widgetSelected(SelectionEvent e) {
+        handleBrowse();
+      }
+    });
+    label = new Label(container, SWT.NULL);
+    label.setText(PHPWizardMessages.getString("WizardPage.fileLabel"));
+
+    fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
+    gd = new GridData(GridData.FILL_HORIZONTAL);
+    fileText.setLayoutData(gd);
+    fileText.addModifyListener(new ModifyListener() {
+      public void modifyText(ModifyEvent e) {
+        dialogChanged();
+      }
+    });
+    initialize();
+    dialogChanged();
+    setControl(container);
+  }
+
+  /**
+   * Tests if the current workbench selection is a suitable container to use.
+   */
+
+  private void initialize() {
+    if (selection != null && selection.isEmpty() == false
+        && selection instanceof IStructuredSelection) {
+      IStructuredSelection ssel = (IStructuredSelection) selection;
+      if (ssel.size() > 1)
+        return;
+      Object obj = ssel.getFirstElement();
+      if (obj instanceof IResource) {
+        IContainer container;
+        if (obj instanceof IContainer)
+          container = (IContainer) obj;
+        else
+          container = ((IResource) obj).getParent();
+        containerText.setText(container.getFullPath().toString());
+        fileText.setFocus();
+      }
+    }
+    fileText.setText(INITIAL_FILENAME);
+  }
+
+  /**
+   * Uses the standard container selection dialog to choose the new value for
+   * the container field.
+   */
+
+  private void handleBrowse() {
+    ContainerSelectionDialog dialog = new ContainerSelectionDialog(getShell(),
+        ResourcesPlugin.getWorkspace().getRoot(), false, PHPWizardMessages
+            .getString("WizardPage.selectNewFileContainer"));
+    if (dialog.open() == ContainerSelectionDialog.OK) {
+      Object[] results = dialog.getResult();
+      if (results.length == 1) {
+         Object result=results[0];
+         if (result instanceof IPath) {
+                 IPath ipath = (IPath) result;
+                 containerText.setText(ipath.toString());
+         }
+      }
+    }
+  }
+
+  /**
+   * Ensures that both text fields are set.
+   */
+  private void dialogChanged() {
+    String container = getContainerName();
+    String fileName = getFileName();
+
+    if (container.length() == 0) {
+      updateStatus(PHPWizardMessages
+          .getString("WizardPage.containerMustBeSpecified"));
+      return;
+    }
+    if (fileName.length() == 0) {
+      updateStatus("WizardPage.nameMustBeSpecified");
+      return;
+    }
+
+    updateStatus(null);
+  }
+
+  private void updateStatus(String message) {
+    setErrorMessage(message);
+    setPageComplete(message == null);
+  }
+
+  public String getContainerName() {
+    return containerText.getText();
+  }
+
+  public String getFileName() {
+    return fileText.getText();
+  }
+
+  /**
+   * @see WizardPage#isPageComplete()
+   */
+  public boolean isPageComplete() {
+    return !checkFolderForExistingFile() && super.isPageComplete();
+  }
+
+  /**
+        * Finds the current directory where the file should be created
         */
-
-       private void handleBrowse() {
-               ContainerSelectionDialog dialog =
-                       new ContainerSelectionDialog(
-                               getShell(),
-                               ResourcesPlugin.getWorkspace().getRoot(),
-                               false,
-                               PHPWizardMessages.getString("WizardPage.selectNewFileContainer"));
-               if (dialog.open() == ContainerSelectionDialog.OK) {
-                       Object[] result = dialog.getResult();
-                       if (result.length == 1) {
-                               IContainer container = (IContainer) result[0];
-                               containerText.setText(container.getFullPath().toString());
+       protected boolean checkFolderForExistingFile() {
+               IContainer container = getFileContainer();
+               if (container != null) {
+                       IResource file = container.getFile(new Path(fileText.getText()
+                                       .trim()));
+                       if (file != null && file.exists()) {
+                               this.setErrorMessage(PHPWizardMessages
+                                               .getString("WizardPage.fileAlreadyExists"));
+                               return true;
                        }
-               }
-       }
-       
-       /**
-        * Ensures that both text fields are set.
-        */
-       private void dialogChanged() {
-               String container = getContainerName();
-               String fileName = getFileName();
 
-               if (container.length() == 0) {
-                       updateStatus(PHPWizardMessages.getString("WizardPage.containerMustBeSpecified"));
-                       return;
-               }
-               if (fileName.length() == 0) {
-                       updateStatus("WizardPage.nameMustBeSpecified");
-                       return;
+                       ((PHPFileWizard) this.getWizard()).setFileName(fileText.getText()
+                                       .trim());
                }
-               int dotLoc = fileName.lastIndexOf('.');
-               if (dotLoc != -1) {
-                       String ext = fileName.substring(dotLoc + 1);
-                       if (!ext.equalsIgnoreCase("php") && 
-                           !ext.equalsIgnoreCase("php3") && 
-                           !ext.equalsIgnoreCase("php4") && 
-                           !ext.equalsIgnoreCase("php5") &&
-                           !ext.equalsIgnoreCase("phtml") &&
-                           !ext.equalsIgnoreCase("inc")) {
-                               updateStatus(PHPWizardMessages.getString("WizardPage.mustBePHP"));
-                               return;
-                       }
-               }
-               updateStatus(null);
-       }
-
-       private void updateStatus(String message) {
-               setErrorMessage(message);
-               setPageComplete(message == null);
+               return false;
        }
 
-       public String getContainerName() {
-               return containerText.getText();
-       }
-       public String getFileName() {
-               return fileText.getText();
-       }
-       
-       /**
-        * @see WizardPage#isPageComplete()
-        */
-       public boolean isPageComplete() {
-               return !checkFolderForExistingFile() && super.isPageComplete();
-       }
-
-       /**
-        * Finds the current directory where the file should be created
-        */
-       protected boolean checkFolderForExistingFile() {
-               boolean result = false;
-               
+       private IContainer getFileContainer() {
                if (containerText.getText() != null) {
                        IPath containerPath = new Path(containerText.getText().trim());
+                       IContainer container;
                        if (containerPath.segmentCount() > 1) {
-                               IFolder container = ResourcesPlugin.getWorkspace().getRoot().getFolder(containerPath);
-                               if (container != null && container.exists()) {
-                                       IResource file = container.getFile(fileText.getText().trim());
-                                       if (file != null && file.exists()) {
-                                               this.setErrorMessage(PHPWizardMessages.getString("WizardPage.fileAlreadyExists"));
-                                               result = true;
-                                       }
-                               }
+                               container = ResourcesPlugin.getWorkspace().getRoot().getFolder(
+                                               containerPath);
                        } else {
                                // this is a project
-                               IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(containerText.getText().trim());
-                               if (project != null && project.exists()) {
-                                       IResource file = project.getFile(fileText.getText().trim());
-                                       if (file != null && file.exists()) {
-                                               this.setErrorMessage(PHPWizardMessages.getString("WizardPage.fileAlreadyExists"));
-                                               result = true;
-                                       }
-                               }
+                               container = ResourcesPlugin.getWorkspace().getRoot()
+                                               .getProject(containerText.getText().trim());
+                       }
+                       if (container != null && container.exists()) {
+                               return container;
+                       }
+               }
+               return null;
+       }
+
+       public void setVisible(boolean visible) {
+               super.setVisible(visible);
+               if (visible) {
+                       String fileName=fileText.getText().trim();
+                       if (getFileContainer() != null && fileName.equalsIgnoreCase(INITIAL_FILENAME)) {
+                               fileText.setFocus();
+                               fileText.setText(fileName);
+                               fileText.setSelection(0, fileName.length()-(new Path(INITIAL_FILENAME)).getFileExtension().length()-1);
                        }
                }
-               
-               if (!result)
-                       ((PHPFileWizard) this.getWizard()).setFileName(fileText.getText().trim());
-               
-               return result;
        }
 
 }
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