net.sourceforge.phpeclipse.ui/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
  61                                 .getString("WizardPage.html.description"));
  62                 this.selection = selection;
  63         }
  64
  65         /**
  66          * @see IDialogPage#createControl(Composite)
  67          */
  68         public void createControl(Composite parent) {
  69                 Composite container = new Composite(parent, SWT.NULL);
  70                 GridLayout layout = new GridLayout();
  71                 container.setLayout(layout);
  72                 layout.numColumns = 3;
  73                 layout.verticalSpacing = 9;
  74                 Label label = new Label(container, SWT.NULL);
  75                 label.setText(PHPWizardMessages.getString("WizardPage.containerLabel"));
  76
  77                 containerText = new Text(container, SWT.BORDER | SWT.SINGLE);
  78                 GridData gd = new GridData(GridData.FILL_HORIZONTAL);
  79                 containerText.setLayoutData(gd);
  80                 containerText.addModifyListener(new ModifyListener() {
  81                         public void modifyText(ModifyEvent e) {
  82                                 dialogChanged();
  83                         }
  84                 });
  85
  86                 Button button = new Button(container, SWT.PUSH);
  87                 button.setText(PHPWizardMessages
  88                                 .getString("WizardPage.browseButtonText"));
  89                 button.addSelectionListener(new SelectionAdapter() {
  90                         public void widgetSelected(SelectionEvent e) {
  91                                 handleBrowse();
  92                         }
  93                 });
  94                 label = new Label(container, SWT.NULL);
  95                 label.setText(PHPWizardMessages.getString("WizardPage.fileLabel"));
  96
  97                 fileText = new Text(container, SWT.BORDER | SWT.SINGLE);
  98                 gd = new GridData(GridData.FILL_HORIZONTAL);
  99                 fileText.setLayoutData(gd);
 100                 fileText.addModifyListener(new ModifyListener() {
 101                         public void modifyText(ModifyEvent e) {
 102                                 dialogChanged();
 103                         }
 104                 });
 105                 initialize();
 106                 dialogChanged();
 107                 setControl(container);
 108         }
 109
 110         /**
 111          * Tests if the current workbench selection is a suitable container to use.
 112          */
 113
 114         private void initialize() {
 115                 if (selection != null && selection.isEmpty() == false
 116                                 && selection instanceof IStructuredSelection) {
 117                         IStructuredSelection ssel = (IStructuredSelection) selection;
 118                         if (ssel.size() > 1)
 119                                 return;
 120                         Object obj = ssel.getFirstElement();
 121                         if (obj instanceof IResource) {
 122                                 IContainer container;
 123                                 if (obj instanceof IContainer)
 124                                         container = (IContainer) obj;
 125                                 else
 126                                         container = ((IResource) obj).getParent();
 127                                 containerText.setText(container.getFullPath().toString());
 128                                 fileText.setFocus();
 129                         }
 130                 }
 131                 fileText.setText(INITIAL_FILENAME);
 132         }
 133
 134         /**
 135          * Uses the standard container selection dialog to choose the new value for
 136          * the container field.
 137          */
 138
 139         private void handleBrowse() {
 140                 ContainerSelectionDialog dialog = new ContainerSelectionDialog(
 141                                 getShell(), ResourcesPlugin.getWorkspace().getRoot(), false,
 142                                 PHPWizardMessages
 143                                                 .getString("WizardPage.selectNewFileContainer"));
 144                 if (dialog.open() == ContainerSelectionDialog.OK) {
 145                         Object[] result = dialog.getResult();
 146                         if (result.length == 1) {
 147                                 IContainer container = (IContainer) result[0];
 148                                 containerText.setText(container.getFullPath().toString());
 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                 return false;
 208         }
 209
 210         private IContainer getFileContainer() {
 211                 if (containerText.getText() != null) {
 212                         IPath containerPath = new Path(containerText.getText().trim());
 213                         IContainer container;
 214                         if (containerPath.segmentCount() > 1) {
 215                                 container = ResourcesPlugin.getWorkspace().getRoot().getFolder(
 216                                                 containerPath);
 217                         } else {
 218                                 // this is a project
 219                                 container = ResourcesPlugin.getWorkspace().getRoot()
 220                                                 .getProject(containerText.getText().trim());
 221                         }
 222                         if (container != null && container.exists()) {
 223                                 return container;
 224                         }
 225                 }
 226                 return null;
 227         }
 228
 229         public void setVisible(boolean visible) {
 230                 super.setVisible(visible);
 231                 if (visible) {
 232                         String fileName = fileText.getText().trim();
 233                         if (getFileContainer() != null
 234                                         && fileName.equalsIgnoreCase(INITIAL_FILENAME)) {
 235                                 fileText.setFocus();
 236                                 fileText.setText(fileName);
 237                                 fileText.setSelection(0, fileName.length()
 238                                                 - (new Path(INITIAL_FILENAME)).getFileExtension()
 239                                                                 .length() - 1);
 240                         }
 241                 }
 242         }
 243
 244 }