Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-after / ui / org / eclipse / jdt / internal / ui / javaeditor / saveparticipant / AbstractSaveParticipantPreferenceConfiguration.java

diff --git a/case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/javaeditor/saveparticipant/AbstractSaveParticipantPreferenceConfiguration.java b/case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/javaeditor/saveparticipant/AbstractSaveParticipantPreferenceConfiguration.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2012 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.ui.javaeditor.saveparticipant;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.preferences.DefaultScope;
+import org.eclipse.core.runtime.preferences.IEclipsePreferences;
+import org.eclipse.core.runtime.preferences.IScopeContext;
+import org.eclipse.core.runtime.preferences.InstanceScope;
+
+import org.eclipse.core.resources.ProjectScope;
+
+import org.eclipse.jface.preference.IPreferencePageContainer;
+
+import org.eclipse.jdt.ui.JavaUI;
+
+import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
+import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
+import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
+
+public abstract class AbstractSaveParticipantPreferenceConfiguration implements ISaveParticipantPreferenceConfiguration {
+
+       /**
+     * Preference prefix that is prepended to the id of {@link SaveParticipantDescriptor save participants}.
+     *
+     * <p>
+     * Value is of type <code>Boolean</code>.
+     * </p>
+     *
+     * @see SaveParticipantDescriptor
+     * @since 3.3
+     */
+    public static final String EDITOR_SAVE_PARTICIPANT_PREFIX= "editor_save_participant_";  //$NON-NLS-1$
+
+       private SelectionButtonDialogField fEnableField;
+       private IScopeContext fContext;
+
+       /**
+        * @return id of the post save listener managed by this configuration block
+        */
+       protected abstract String getPostSaveListenerId();
+
+       /**
+        * @return human readable name of the post save listener managed by this configuration block
+        */
+       protected abstract String getPostSaveListenerName();
+
+       /**
+        * Subclasses can add specific controls
+        *
+        * @param parent the parent to use to add the control to
+        * @param container the container showing the preferences
+        */
+       protected void createConfigControl(Composite parent, IPreferencePageContainer container) {
+               //Default has no specific controls
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public Control createControl(Composite parent, IPreferencePageContainer container) {
+               Composite composite= new Composite(parent, SWT.NONE);
+               GridData gridData= new GridData(SWT.FILL, SWT.FILL, true, true);
+               composite.setLayoutData(gridData);
+               GridLayout layout= new GridLayout();
+               layout.marginHeight= 0;
+               layout.marginWidth= 0;
+               composite.setLayout(layout);
+
+               fEnableField= new SelectionButtonDialogField(SWT.CHECK);
+               fEnableField.setLabelText(getPostSaveListenerName());
+               fEnableField.doFillIntoGrid(composite, 1);
+
+               createConfigControl(composite, container);
+
+               return composite;
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public void initialize(final IScopeContext context, IAdaptable element) {
+               boolean enabled= isEnabled(context);
+               fEnableField.setSelection(enabled);
+
+               fEnableField.setDialogFieldListener(new IDialogFieldListener() {
+                       public void dialogFieldChanged(DialogField field) {
+                               fContext.getNode(JavaUI.ID_PLUGIN).putBoolean(getPreferenceKey(), fEnableField.isSelected());
+                               enabled(fEnableField.isSelected());
+                       }
+
+               });
+
+               fContext= context;
+
+               enabled(enabled);
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public void dispose() {}
+
+       /**
+        * {@inheritDoc}
+        */
+       public void performDefaults() {
+               String key= getPreferenceKey();
+               boolean defaultEnabled;
+               if (ProjectScope.SCOPE.equals(fContext.getName())) {
+                       defaultEnabled= InstanceScope.INSTANCE.getNode(JavaUI.ID_PLUGIN).getBoolean(key, false);
+               } else {
+                       defaultEnabled= DefaultScope.INSTANCE.getNode(JavaUI.ID_PLUGIN).getBoolean(key, false);
+               }
+               fContext.getNode(JavaUI.ID_PLUGIN).putBoolean(key, defaultEnabled);
+               fEnableField.setSelection(defaultEnabled);
+
+               enabled(defaultEnabled);
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public void performOk() {}
+
+       /**
+        * {@inheritDoc}
+        */
+       public void enableProjectSettings() {
+               fContext.getNode(JavaUI.ID_PLUGIN).putBoolean(getPreferenceKey(), fEnableField.isSelected());
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public void disableProjectSettings() {
+               fContext.getNode(JavaUI.ID_PLUGIN).remove(getPreferenceKey());
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public boolean hasSettingsInScope(IScopeContext context) {
+       return context.getNode(JavaUI.ID_PLUGIN).get(getPreferenceKey(), null) != null;
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       public boolean isEnabled(IScopeContext context) {
+               IEclipsePreferences node;
+               if (hasSettingsInScope(context)) {
+                       node= context.getNode(JavaUI.ID_PLUGIN);
+               } else {
+                       node= InstanceScope.INSTANCE.getNode(JavaUI.ID_PLUGIN);
+               }
+               IEclipsePreferences defaultNode= DefaultScope.INSTANCE.getNode(JavaUI.ID_PLUGIN);
+
+               String key= getPreferenceKey();
+               return node.getBoolean(key, defaultNode.getBoolean(key, false));
+       }
+
+       /**
+        * @param enabled true if this save action has been enabled by user, false otherwise
+        */
+       protected void enabled(boolean enabled) {
+       }
+
+       private String getPreferenceKey() {
+               return EDITOR_SAVE_PARTICIPANT_PREFIX + getPostSaveListenerId();
+    }
+}