case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/preferences/AbstractConfigurationBlockPreferenceAndPropertyPage.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.ui.preferences;
  12
  13 import org.osgi.service.prefs.BackingStoreException;
  14
  15 import org.eclipse.swt.widgets.Composite;
  16 import org.eclipse.swt.widgets.Control;
  17
  18 import org.eclipse.core.runtime.preferences.IScopeContext;
  19
  20 import org.eclipse.core.resources.IProject;
  21
  22 import org.eclipse.jface.dialogs.Dialog;
  23 import org.eclipse.jface.preference.IPreferencePageContainer;
  24
  25 import org.eclipse.ui.PlatformUI;
  26 import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
  27 import org.eclipse.ui.preferences.IWorkingCopyManager;
  28 import org.eclipse.ui.preferences.WorkingCopyManager;
  29
  30 import org.eclipse.jdt.internal.ui.JavaPlugin;
  31
  32 /**
  33  * Abstract preference and property page which is used to wrap a
  34  * {@link org.eclipse.jdt.internal.ui.preferences.IPreferenceAndPropertyConfigurationBlock}.
  35  *
  36  * @since 3.3
  37  */
  38 public abstract class AbstractConfigurationBlockPreferenceAndPropertyPage extends PropertyAndPreferencePage {
  39
  40         private IPreferenceAndPropertyConfigurationBlock fConfigurationBlock;
  41         PreferencesAccess fAccess;
  42
  43         public AbstractConfigurationBlockPreferenceAndPropertyPage() {
  44         }
  45
  46         /**
  47          * Create a configuration block which does modify settings in <code>context</code>.
  48          *
  49          * @param context the context to modify
  50          * @return the preference block, not null
  51          */
  52         protected abstract IPreferenceAndPropertyConfigurationBlock createConfigurationBlock(IScopeContext context);
  53
  54         protected abstract String getHelpId();
  55
  56         /**
  57          * {@inheritDoc}
  58          */
  59         @Override
  60         public void createControl(Composite parent) {
  61                 super.createControl(parent);
  62                 PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), getHelpId());
  63         }
  64
  65         /**
  66          * {@inheritDoc}
  67          */
  68         @Override
  69         protected Control createPreferenceContent(Composite parent) {
  70
  71                 IPreferencePageContainer container= getContainer();
  72                 IWorkingCopyManager manager;
  73                 if (container instanceof IWorkbenchPreferenceContainer) {
  74                         manager= ((IWorkbenchPreferenceContainer)container).getWorkingCopyManager();
  75                 } else {
  76                         manager= new WorkingCopyManager(); // non shared
  77                 }
  78                 fAccess= PreferencesAccess.getWorkingCopyPreferences(manager);
  79                 IProject project= getProject();
  80                 IScopeContext context;
  81                 context= fAccess.generated_467733558802250908(project);
  82
  83                 fConfigurationBlock= createConfigurationBlock(context);
  84
  85                 Control content= fConfigurationBlock.createControl(parent);
  86
  87                 fConfigurationBlock.initialize();
  88
  89                 Dialog.applyDialogFont(content);
  90                 return content;
  91         }
  92
  93         /**
  94          * {@inheritDoc}
  95          */
  96         @Override
  97         public boolean performOk() {
  98                 fConfigurationBlock.performOk();
  99
 100                 try {
 101                 fAccess.applyChanges();
 102         } catch (BackingStoreException e) {
 103                 JavaPlugin.log(e);
 104         }
 105
 106                 return true;
 107         }
 108
 109         /**
 110          * {@inheritDoc}
 111          */
 112         @Override
 113         public void performDefaults() {
 114                 fConfigurationBlock.performDefaults();
 115                 super.performDefaults();
 116         }
 117
 118         /**
 119          * {@inheritDoc}
 120          */
 121         @Override
 122         public void dispose() {
 123                 fConfigurationBlock.dispose();
 124                 super.dispose();
 125         }
 126
 127         /**
 128          * {@inheritDoc}
 129          */
 130         @Override
 131         protected void enableProjectSpecificSettings(boolean useProjectSpecificSettings) {
 132                 super.enableProjectSpecificSettings(useProjectSpecificSettings);
 133                 if (useProjectSpecificSettings) {
 134                         fConfigurationBlock.enableProjectSettings();
 135                 } else {
 136                         fConfigurationBlock.disableProjectSettings();
 137                 }
 138         }
 139 }