org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CodeAssistFavoritesConfigurationBlock.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007, 2016 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.preferences;

 import java.util.Arrays;
 import java.util.List;

 import org.eclipse.equinox.bidi.StructuredTextTypeHandlerFactory;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;

 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.IStatus;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.StatusDialog;
 import org.eclipse.jface.layout.PixelConverter;
 import org.eclipse.jface.operation.IRunnableContext;
 import org.eclipse.jface.util.BidiUtils;
 import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.jface.viewers.ViewerComparator;
 import org.eclipse.jface.window.Window;

 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.SelectionDialog;
 import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;

 import org.eclipse.jdt.core.IType;
 import org.eclipse.jdt.core.JavaConventions;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.core.search.IJavaSearchScope;
 import org.eclipse.jdt.core.search.SearchEngine;

 import org.eclipse.jdt.ui.IJavaElementSearchConstants;
 import org.eclipse.jdt.ui.JavaUI;
 import org.eclipse.jdt.ui.PreferenceConstants;

 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
 import org.eclipse.jdt.internal.ui.JavaPluginImages;
 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
 import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
 import org.eclipse.jdt.internal.ui.util.BusyIndicatorRunnableContext;
 import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
 import org.eclipse.jdt.internal.core.manipulation.util.BasicElementLabels;
 import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;
 import org.eclipse.jdt.internal.ui.wizards.IStatusChangeListener;
 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.IListAdapter;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.ListDialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;


 /**
  * Configures the Content Assist > Static Members preference page.
  *
  * @since 3.3
  */
 class CodeAssistFavoritesConfigurationBlock extends OptionsConfigurationBlock {


 	private static class FavoriteStaticMemberInputDialog extends StatusDialog {

 		private class StringButtonAdapter implements IDialogFieldListener, IStringButtonAdapter {
 			/*
 			 * @see IDialogFieldListener#dialogFieldChanged(DialogField)
 			 */
 			@Override
 			public void dialogFieldChanged(DialogField field) {
 				doValidation();
 			}

 			/*
 			 * @see IStringButtonAdapter#changeControlPressed(DialogField)
 			 */
 			@Override
 			public void changeControlPressed(DialogField field) {
 				doBrowseTypes();
 			}
 		}

 		private StringButtonDialogField fNameDialogField;
 		private List<String> fExistingEntries;
 		private final boolean fIsEditingMember;

 		public FavoriteStaticMemberInputDialog(Shell parent, List<String> existingEntries, boolean isMember, boolean isNew) {
 			super(parent);
 			fIsEditingMember= isMember;
 			fExistingEntries= existingEntries;

 			String label, title;
 			if (isMember) {
 				title= isNew ? PreferencesMessages.FavoriteStaticMemberInputDialog_member_new_title : PreferencesMessages.FavoriteStaticMemberInputDialog_member_edit_title;
 				label= PreferencesMessages.FavoriteStaticMemberInputDialog_member_labelText;
 			} else {
 				title= isNew ? PreferencesMessages.FavoriteStaticMemberInputDialog_type_new_title : PreferencesMessages.FavoriteStaticMemberInputDialog_type_edit_title;
 				label= PreferencesMessages.FavoriteStaticMemberInputDialog_type_labelText;
 			}
 			setTitle(title);

 			StringButtonAdapter adapter= new StringButtonAdapter();

 			fNameDialogField= new StringButtonDialogField(adapter);
 			fNameDialogField.setLabelText(label);
 			fNameDialogField.setButtonLabel(PreferencesMessages.FavoriteStaticMemberInputDialog_browse_button);
 			fNameDialogField.setDialogFieldListener(adapter);
 			fNameDialogField.setText(""); //$NON-NLS-1$
 		}

 		/*
 		 * @see org.eclipse.jface.dialogs.Dialog#isResizable()
 		 * @since 3.4
 		 */
 		@Override
 		protected boolean isResizable() {
 			return true;
 		}

 		public void setInitialSelection(String editedEntry) {
 			Assert.isNotNull(editedEntry);
 			if (editedEntry.length() == 0)
 				fNameDialogField.setText(""); //$NON-NLS-1$
 			else
 				fNameDialogField.setText(editedEntry);
 		}

 		public String getResult() {
 			String val= fNameDialogField.getText();
 			if (!fIsEditingMember)
 				val= val + WILDCARD;
 			return val;
 		}

 		@Override
 		protected Control createDialogArea(Composite parent) {
 			Composite composite= (Composite) super.createDialogArea(parent);
 			initializeDialogUnits(parent);

 			GridLayout layout= (GridLayout) composite.getLayout();
 			layout.numColumns= 2;

 			fNameDialogField.doFillIntoGrid(composite, 3);

 			fNameDialogField.getChangeControl(null).setVisible(!fIsEditingMember);

 			LayoutUtil.setHorizontalSpan(fNameDialogField.getLabelControl(null), 2);

 			int fieldWidthHint= convertWidthInCharsToPixels(60);
 			Text text= fNameDialogField.getTextControl(null);
 			LayoutUtil.setWidthHint(text, fieldWidthHint);
 			LayoutUtil.setHorizontalGrabbing(text);
 			LayoutUtil.setHorizontalSpan(text, fIsEditingMember ? 2 : 1);
 			BidiUtils.applyBidiProcessing(text, StructuredTextTypeHandlerFactory.JAVA);
 			TextFieldNavigationHandler.install(text);

 			DialogField.createEmptySpace(composite, 1);

 			fNameDialogField.postSetFocusOnDialogField(parent.getDisplay());


 			applyDialogFont(composite);
 			return composite;
 		}

 		private void doBrowseTypes() {
 			IRunnableContext context= new BusyIndicatorRunnableContext();
 			IJavaSearchScope scope= SearchEngine.createWorkspaceScope();
 			int style= IJavaElementSearchConstants.CONSIDER_ALL_TYPES;
 			try {
 				SelectionDialog dialog= JavaUI.createTypeDialog(getShell(), context, scope, style, false, fNameDialogField.getText());
 				dialog.setTitle(PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_title);
 				dialog.setMessage(PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_description);
 				if (dialog.open() == Window.OK) {
 					IType res= (IType) dialog.getResult()[0];
 					fNameDialogField.setText(res.getFullyQualifiedName('.'));
 				}
 			} catch (JavaModelException e) {
 				ExceptionHandler.handle(e, getShell(), PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_title, PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_error_message);
 			}
 		}

 		private void doValidation() {
 			StatusInfo status= new StatusInfo();
 			String newText= fNameDialogField.getText();
 			if (newText.length() == 0) {
 				status.setError(""); //$NON-NLS-1$
 			} else {
 				IStatus val= JavaConventions.validateJavaTypeName(newText, JavaCore.VERSION_1_3, JavaCore.VERSION_1_3);
 				if (val.matches(IStatus.ERROR)) {
 					if (fIsEditingMember)
 						status.setError(PreferencesMessages.FavoriteStaticMemberInputDialog_error_invalidMemberName);
 					else
 						status.setError(PreferencesMessages.FavoriteStaticMemberInputDialog_error_invalidTypeName);
 				} else {
 					if (doesExist(newText)) {
 						status.setError(PreferencesMessages.FavoriteStaticMemberInputDialog_error_entryExists);
 					}
 				}
 			}
 			updateStatus(status);
 		}

 		private boolean doesExist(String name) {
 			for (int i= 0; i < fExistingEntries.size(); i++) {
 				String entry= fExistingEntries.get(i);
 				if (name.equals(entry)) {
 					return true;
 				}
 			}
 			return false;
 		}


 		/*
 		 * @see org.eclipse.jface.window.Window#configureShell(Shell)
 		 */
 		@Override
 		protected void configureShell(Shell newShell) {
 			super.configureShell(newShell);
 			PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.JAVA_EDITOR_PREFERENCE_PAGE);
 		}

 	}


 	private static class ListLabelProvider extends LabelProvider {

 		public final Image MEMBER_ICON;
 		private final Image CLASS_ICON;

 		public ListLabelProvider() {
 			MEMBER_ICON= JavaElementImageProvider.getDecoratedImage(JavaPluginImages.DESC_MISC_PUBLIC, 0, JavaElementImageProvider.SMALL_SIZE);
 			CLASS_ICON= JavaElementImageProvider.getDecoratedImage(JavaPluginImages.DESC_OBJS_CLASS, 0, JavaElementImageProvider.SMALL_SIZE);
 		}

 		@Override
 		public Image getImage(Object element) {
 			return ((String)element).endsWith(WILDCARD) ? CLASS_ICON : MEMBER_ICON;
 		}

 		@Override
 		public String getText(Object element) {
 			return BasicElementLabels.getJavaElementName((String) element);
 		}
 	}


 	private class ListAdapter implements IListAdapter<String>, IDialogFieldListener {

 		private boolean canEdit(ListDialogField<String> field) {
 			List<String> selected= field.getSelectedElements();
 			return selected.size() == 1;
 		}

         @Override
 		public void customButtonPressed(ListDialogField<String> field, int index) {
         	doButtonPressed(index);
         }

         @Override
 		public void selectionChanged(ListDialogField<String> field) {
 			fList.enableButton(IDX_EDIT, canEdit(field));
         }

         @Override
 		public void dialogFieldChanged(DialogField field) {
         	doDialogFieldChanged(field);
         }

         @Override
 		public void doubleClicked(ListDialogField<String> field) {
         	if (canEdit(field)) {
 				doButtonPressed(IDX_EDIT);
         	}
         }
 	}


 	private static final Key PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS= getJDTUIKey(PreferenceConstants.CODEASSIST_FAVORITE_STATIC_MEMBERS);

 	private static final String WILDCARD= ".*"; //$NON-NLS-1$

 	private static final int IDX_NEW_TYPE= 0;
 	private static final int IDX_NEW_MEMBER= 1;
 	private static final int IDX_EDIT= 2;
 	private static final int IDX_REMOVE= 3;

 	private ListDialogField<String> fList;


 	private static Key[] getAllKeys() {
 		return new Key[] {
 				PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS
 		};
 	}


 	public CodeAssistFavoritesConfigurationBlock(IStatusChangeListener statusListener, IWorkbenchPreferenceContainer workbenchcontainer) {
 		super(statusListener, null, getAllKeys(), workbenchcontainer);
 	}

 	@Override
 	protected Control createContents(Composite parent) {
 		ScrolledPageContent scrolled= new ScrolledPageContent(parent, SWT.H_SCROLL | SWT.V_SCROLL);
 		scrolled.setExpandHorizontal(true);
 		scrolled.setExpandVertical(true);

 		Composite control= new Composite(scrolled, SWT.NONE);
 		GridLayout layout= new GridLayout();
 		layout.numColumns= 2;
 		layout.marginWidth= 0;
 		layout.marginHeight= 0;
 		control.setLayout(layout);

 		createFavoriteList(control);

 		initialize();

 		scrolled.setContent(control);
 		final Point size= control.computeSize(SWT.DEFAULT, SWT.DEFAULT);
 		scrolled.setMinSize(size.x, size.y);

 		Dialog.applyDialogFont(scrolled);

 		return scrolled;
 	}

 	private void createFavoriteList(Composite parent) {
 		String[] buttonLabels= new String[] {
 				PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_newType_button,
 				PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_newMember_button,
 				PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_edit_button,
 				PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_remove_button
 		};

 		ListAdapter adapter= new ListAdapter();

 		fList= new ListDialogField<>(adapter, buttonLabels, new ListLabelProvider());
 		fList.setDialogFieldListener(adapter);
 		fList.setLabelText(PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_description);
 		fList.setRemoveButtonIndex(IDX_REMOVE);
 		fList.enableButton(IDX_EDIT, false);
 		fList.setViewerComparator(new ViewerComparator());

 		PixelConverter pixelConverter= new PixelConverter(parent);

 		fList.doFillIntoGrid(parent, 3);
 		LayoutUtil.setHorizontalSpan(fList.getLabelControl(null), 2);
 		LayoutUtil.setWidthHint(fList.getLabelControl(null), pixelConverter.convertWidthInCharsToPixels(60));
 		LayoutUtil.setHorizontalGrabbing(fList.getListControl(null));
 	}

 	public void initialize() {
 		initializeFields();
 	}

 	private void initializeFields() {
 		fList.setElements(Arrays.asList(getFavoriteStaticMembersPreference()));
  	}

     @Override
 	public void performDefaults() {
 		super.performDefaults();
 		initializeFields();
 	}

 	@Override
 	protected String[] getFullBuildDialogStrings(boolean workspaceSettings) {
 		return null;
 	}

 	@Override
 	protected void validateSettings(Key key, String oldValue, String newValue) {
 		// no validation
 	}

 	protected void setControlEnabled(Key key, boolean enabled) {
 		Control control= getControl(key);
 		control.setEnabled(enabled);
 		Label label= fLabels.get(control);
 		if (label != null)
 			label.setEnabled(enabled);
 	}

 	private Control getControl(Key key) {
 		for (int i= fComboBoxes.size() - 1; i >= 0; i--) {
 			Control curr= fComboBoxes.get(i);
 			ControlData data= (ControlData) curr.getData();
 			if (key.equals(data.getKey())) {
 				return curr;
 			}
 		}
 		for (int i= fCheckBoxes.size() - 1; i >= 0; i--) {
 			Control curr= fCheckBoxes.get(i);
 			ControlData data= (ControlData) curr.getData();
 			if (key.equals(data.getKey())) {
 				return curr;
 			}
 		}
 		for (int i= fTextBoxes.size() - 1; i >= 0; i--) {
 			Control curr= fTextBoxes.get(i);
 			Key currKey= (Key) curr.getData();
 			if (key.equals(currKey)) {
 				return curr;
 			}
 		}
 		return null;
 	}

 	private void doButtonPressed(int index) {
 		if (index == IDX_NEW_TYPE || index == IDX_NEW_MEMBER) { // add new
 			List<String> existing= fList.getElements();
 			FavoriteStaticMemberInputDialog dialog= new FavoriteStaticMemberInputDialog(getShell(), existing, index == IDX_NEW_MEMBER, true);
 			if (dialog.open() == Window.OK) {
 				fList.addElement(dialog.getResult());
 			}
 		} else if (index == IDX_EDIT) { // edit
 			List<String> selected= fList.getSelectedElements();
 			if (selected.isEmpty())
 				return;

 			String editedEntry= selected.get(0);

 			List<String> existing= fList.getElements();
 			existing.remove(editedEntry);
 			boolean isType= editedEntry.endsWith(WILDCARD);
 			FavoriteStaticMemberInputDialog dialog= new FavoriteStaticMemberInputDialog(getShell(), existing, !isType, false);
 			if (isType)
 				dialog.setInitialSelection(editedEntry.substring(0, editedEntry.length() - 2));
 			else
 				dialog.setInitialSelection(editedEntry);

 			if (dialog.open() == Window.OK) {
 				fList.replaceElement(editedEntry, dialog.getResult());
 			}
 		}
 	}

 	protected final void doDialogFieldChanged(DialogField field) {
 		// set values in working copy
 		if (field == fList)
 	  		setValue(PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS, serializeFavorites(fList.getElements()));
 	}

 	private String[] getFavoriteStaticMembersPreference() {
 		String str= getValue(PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS);
 		if (str != null && str.length() > 0)
 			return deserializeFavorites(str);
 		return new String[0];
 	}

 	private static String[] deserializeFavorites(String str) {
 		return str.split(";"); //$NON-NLS-1$
 	}

 	private static String serializeFavorites(List<String> favorites) {
 		int size= favorites.size();
 		StringBuffer buf= new StringBuffer();
 		for (int i= 0; i < size; i++) {
 			buf.append(favorites.get(i));
 			if (i < size -1)
 				buf.append(';');
 		}
 		return buf.toString();
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2007, 2016 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.preferences;

	import java.util.Arrays;
	import java.util.List;

	import org.eclipse.equinox.bidi.StructuredTextTypeHandlerFactory;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;

	import org.eclipse.core.runtime.Assert;
	import org.eclipse.core.runtime.IStatus;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.StatusDialog;
	import org.eclipse.jface.layout.PixelConverter;
	import org.eclipse.jface.operation.IRunnableContext;
	import org.eclipse.jface.util.BidiUtils;
	import org.eclipse.jface.viewers.LabelProvider;
	import org.eclipse.jface.viewers.ViewerComparator;
	import org.eclipse.jface.window.Window;

	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.SelectionDialog;
	import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;

	import org.eclipse.jdt.core.IType;
	import org.eclipse.jdt.core.JavaConventions;
	import org.eclipse.jdt.core.JavaCore;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.core.search.IJavaSearchScope;
	import org.eclipse.jdt.core.search.SearchEngine;

	import org.eclipse.jdt.ui.IJavaElementSearchConstants;
	import org.eclipse.jdt.ui.JavaUI;
	import org.eclipse.jdt.ui.PreferenceConstants;

	import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
	import org.eclipse.jdt.internal.ui.JavaPluginImages;
	import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
	import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
	import org.eclipse.jdt.internal.ui.util.BusyIndicatorRunnableContext;
	import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
	import org.eclipse.jdt.internal.core.manipulation.util.BasicElementLabels;
	import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;
	import org.eclipse.jdt.internal.ui.wizards.IStatusChangeListener;
	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.IListAdapter;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.ListDialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;


	/**
	* Configures the Content Assist > Static Members preference page.
	*
	* @since 3.3
	*/
	class CodeAssistFavoritesConfigurationBlock extends OptionsConfigurationBlock {


	private static class FavoriteStaticMemberInputDialog extends StatusDialog {

	private class StringButtonAdapter implements IDialogFieldListener, IStringButtonAdapter {
	/*
	* @see IDialogFieldListener#dialogFieldChanged(DialogField)
	*/
	@Override
	public void dialogFieldChanged(DialogField field) {
	doValidation();
	}

	/*
	* @see IStringButtonAdapter#changeControlPressed(DialogField)
	*/
	@Override
	public void changeControlPressed(DialogField field) {
	doBrowseTypes();
	}
	}

	private StringButtonDialogField fNameDialogField;
	private List<String> fExistingEntries;
	private final boolean fIsEditingMember;

	public FavoriteStaticMemberInputDialog(Shell parent, List<String> existingEntries, boolean isMember, boolean isNew) {
	super(parent);
	fIsEditingMember= isMember;
	fExistingEntries= existingEntries;

	String label, title;
	if (isMember) {
	title= isNew ? PreferencesMessages.FavoriteStaticMemberInputDialog_member_new_title : PreferencesMessages.FavoriteStaticMemberInputDialog_member_edit_title;
	label= PreferencesMessages.FavoriteStaticMemberInputDialog_member_labelText;
	} else {
	title= isNew ? PreferencesMessages.FavoriteStaticMemberInputDialog_type_new_title : PreferencesMessages.FavoriteStaticMemberInputDialog_type_edit_title;
	label= PreferencesMessages.FavoriteStaticMemberInputDialog_type_labelText;
	}
	setTitle(title);

	StringButtonAdapter adapter= new StringButtonAdapter();

	fNameDialogField= new StringButtonDialogField(adapter);
	fNameDialogField.setLabelText(label);
	fNameDialogField.setButtonLabel(PreferencesMessages.FavoriteStaticMemberInputDialog_browse_button);
	fNameDialogField.setDialogFieldListener(adapter);
	fNameDialogField.setText(""); //$NON-NLS-1$
	}

	/*
	* @see org.eclipse.jface.dialogs.Dialog#isResizable()
	* @since 3.4
	*/
	@Override
	protected boolean isResizable() {
	return true;
	}

	public void setInitialSelection(String editedEntry) {
	Assert.isNotNull(editedEntry);
	if (editedEntry.length() == 0)
	fNameDialogField.setText(""); //$NON-NLS-1$
	else
	fNameDialogField.setText(editedEntry);
	}

	public String getResult() {
	String val= fNameDialogField.getText();
	if (!fIsEditingMember)
	val= val + WILDCARD;
	return val;
	}

	@Override
	protected Control createDialogArea(Composite parent) {
	Composite composite= (Composite) super.createDialogArea(parent);
	initializeDialogUnits(parent);

	GridLayout layout= (GridLayout) composite.getLayout();
	layout.numColumns= 2;

	fNameDialogField.doFillIntoGrid(composite, 3);

	fNameDialogField.getChangeControl(null).setVisible(!fIsEditingMember);

	LayoutUtil.setHorizontalSpan(fNameDialogField.getLabelControl(null), 2);

	int fieldWidthHint= convertWidthInCharsToPixels(60);
	Text text= fNameDialogField.getTextControl(null);
	LayoutUtil.setWidthHint(text, fieldWidthHint);
	LayoutUtil.setHorizontalGrabbing(text);
	LayoutUtil.setHorizontalSpan(text, fIsEditingMember ? 2 : 1);
	BidiUtils.applyBidiProcessing(text, StructuredTextTypeHandlerFactory.JAVA);
	TextFieldNavigationHandler.install(text);

	DialogField.createEmptySpace(composite, 1);

	fNameDialogField.postSetFocusOnDialogField(parent.getDisplay());


	applyDialogFont(composite);
	return composite;
	}

	private void doBrowseTypes() {
	IRunnableContext context= new BusyIndicatorRunnableContext();
	IJavaSearchScope scope= SearchEngine.createWorkspaceScope();
	int style= IJavaElementSearchConstants.CONSIDER_ALL_TYPES;
	try {
	SelectionDialog dialog= JavaUI.createTypeDialog(getShell(), context, scope, style, false, fNameDialogField.getText());
	dialog.setTitle(PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_title);
	dialog.setMessage(PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_description);
	if (dialog.open() == Window.OK) {
	IType res= (IType) dialog.getResult()[0];
	fNameDialogField.setText(res.getFullyQualifiedName('.'));
	}
	} catch (JavaModelException e) {
	ExceptionHandler.handle(e, getShell(), PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_title, PreferencesMessages.FavoriteStaticMemberInputDialog_ChooseTypeDialog_error_message);
	}
	}

	private void doValidation() {
	StatusInfo status= new StatusInfo();
	String newText= fNameDialogField.getText();
	if (newText.length() == 0) {
	status.setError(""); //$NON-NLS-1$
	} else {
	IStatus val= JavaConventions.validateJavaTypeName(newText, JavaCore.VERSION_1_3, JavaCore.VERSION_1_3);
	if (val.matches(IStatus.ERROR)) {
	if (fIsEditingMember)
	status.setError(PreferencesMessages.FavoriteStaticMemberInputDialog_error_invalidMemberName);
	else
	status.setError(PreferencesMessages.FavoriteStaticMemberInputDialog_error_invalidTypeName);
	} else {
	if (doesExist(newText)) {
	status.setError(PreferencesMessages.FavoriteStaticMemberInputDialog_error_entryExists);
	}
	}
	}
	updateStatus(status);
	}

	private boolean doesExist(String name) {
	for (int i= 0; i < fExistingEntries.size(); i++) {
	String entry= fExistingEntries.get(i);
	if (name.equals(entry)) {
	return true;
	}
	}
	return false;
	}


	/*
	* @see org.eclipse.jface.window.Window#configureShell(Shell)
	*/
	@Override
	protected void configureShell(Shell newShell) {
	super.configureShell(newShell);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(newShell, IJavaHelpContextIds.JAVA_EDITOR_PREFERENCE_PAGE);
	}

	}


	private static class ListLabelProvider extends LabelProvider {

	public final Image MEMBER_ICON;
	private final Image CLASS_ICON;

	public ListLabelProvider() {
	MEMBER_ICON= JavaElementImageProvider.getDecoratedImage(JavaPluginImages.DESC_MISC_PUBLIC, 0, JavaElementImageProvider.SMALL_SIZE);
	CLASS_ICON= JavaElementImageProvider.getDecoratedImage(JavaPluginImages.DESC_OBJS_CLASS, 0, JavaElementImageProvider.SMALL_SIZE);
	}

	@Override
	public Image getImage(Object element) {
	return ((String)element).endsWith(WILDCARD) ? CLASS_ICON : MEMBER_ICON;
	}

	@Override
	public String getText(Object element) {
	return BasicElementLabels.getJavaElementName((String) element);
	}
	}


	private class ListAdapter implements IListAdapter<String>, IDialogFieldListener {

	private boolean canEdit(ListDialogField<String> field) {
	List<String> selected= field.getSelectedElements();
	return selected.size() == 1;
	}

	@Override
	public void customButtonPressed(ListDialogField<String> field, int index) {
	doButtonPressed(index);
	}

	@Override
	public void selectionChanged(ListDialogField<String> field) {
	fList.enableButton(IDX_EDIT, canEdit(field));
	}

	@Override
	public void dialogFieldChanged(DialogField field) {
	doDialogFieldChanged(field);
	}

	@Override
	public void doubleClicked(ListDialogField<String> field) {
	if (canEdit(field)) {
	doButtonPressed(IDX_EDIT);
	}
	}
	}


	private static final Key PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS= getJDTUIKey(PreferenceConstants.CODEASSIST_FAVORITE_STATIC_MEMBERS);

	private static final String WILDCARD= ".*"; //$NON-NLS-1$

	private static final int IDX_NEW_TYPE= 0;
	private static final int IDX_NEW_MEMBER= 1;
	private static final int IDX_EDIT= 2;
	private static final int IDX_REMOVE= 3;

	private ListDialogField<String> fList;


	private static Key[] getAllKeys() {
	return new Key[] {
	PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS
	};
	}


	public CodeAssistFavoritesConfigurationBlock(IStatusChangeListener statusListener, IWorkbenchPreferenceContainer workbenchcontainer) {
	super(statusListener, null, getAllKeys(), workbenchcontainer);
	}

	@Override
	protected Control createContents(Composite parent) {
	ScrolledPageContent scrolled= new ScrolledPageContent(parent, SWT.H_SCROLL \| SWT.V_SCROLL);
	scrolled.setExpandHorizontal(true);
	scrolled.setExpandVertical(true);

	Composite control= new Composite(scrolled, SWT.NONE);
	GridLayout layout= new GridLayout();
	layout.numColumns= 2;
	layout.marginWidth= 0;
	layout.marginHeight= 0;
	control.setLayout(layout);

	createFavoriteList(control);

	initialize();

	scrolled.setContent(control);
	final Point size= control.computeSize(SWT.DEFAULT, SWT.DEFAULT);
	scrolled.setMinSize(size.x, size.y);

	Dialog.applyDialogFont(scrolled);

	return scrolled;
	}

	private void createFavoriteList(Composite parent) {
	String[] buttonLabels= new String[] {
	PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_newType_button,
	PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_newMember_button,
	PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_edit_button,
	PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_remove_button
	};

	ListAdapter adapter= new ListAdapter();

	fList= new ListDialogField<>(adapter, buttonLabels, new ListLabelProvider());
	fList.setDialogFieldListener(adapter);
	fList.setLabelText(PreferencesMessages.CodeAssistStaticMembersConfigurationBlock_description);
	fList.setRemoveButtonIndex(IDX_REMOVE);
	fList.enableButton(IDX_EDIT, false);
	fList.setViewerComparator(new ViewerComparator());

	PixelConverter pixelConverter= new PixelConverter(parent);

	fList.doFillIntoGrid(parent, 3);
	LayoutUtil.setHorizontalSpan(fList.getLabelControl(null), 2);
	LayoutUtil.setWidthHint(fList.getLabelControl(null), pixelConverter.convertWidthInCharsToPixels(60));
	LayoutUtil.setHorizontalGrabbing(fList.getListControl(null));
	}

	public void initialize() {
	initializeFields();
	}

	private void initializeFields() {
	fList.setElements(Arrays.asList(getFavoriteStaticMembersPreference()));
	}

	@Override
	public void performDefaults() {
	super.performDefaults();
	initializeFields();
	}

	@Override
	protected String[] getFullBuildDialogStrings(boolean workspaceSettings) {
	return null;
	}

	@Override
	protected void validateSettings(Key key, String oldValue, String newValue) {
	// no validation
	}

	protected void setControlEnabled(Key key, boolean enabled) {
	Control control= getControl(key);
	control.setEnabled(enabled);
	Label label= fLabels.get(control);
	if (label != null)
	label.setEnabled(enabled);
	}

	private Control getControl(Key key) {
	for (int i= fComboBoxes.size() - 1; i >= 0; i--) {
	Control curr= fComboBoxes.get(i);
	ControlData data= (ControlData) curr.getData();
	if (key.equals(data.getKey())) {
	return curr;
	}
	}
	for (int i= fCheckBoxes.size() - 1; i >= 0; i--) {
	Control curr= fCheckBoxes.get(i);
	ControlData data= (ControlData) curr.getData();
	if (key.equals(data.getKey())) {
	return curr;
	}
	}
	for (int i= fTextBoxes.size() - 1; i >= 0; i--) {
	Control curr= fTextBoxes.get(i);
	Key currKey= (Key) curr.getData();
	if (key.equals(currKey)) {
	return curr;
	}
	}
	return null;
	}

	private void doButtonPressed(int index) {
	if (index == IDX_NEW_TYPE \|\| index == IDX_NEW_MEMBER) { // add new
	List<String> existing= fList.getElements();
	FavoriteStaticMemberInputDialog dialog= new FavoriteStaticMemberInputDialog(getShell(), existing, index == IDX_NEW_MEMBER, true);
	if (dialog.open() == Window.OK) {
	fList.addElement(dialog.getResult());
	}
	} else if (index == IDX_EDIT) { // edit
	List<String> selected= fList.getSelectedElements();
	if (selected.isEmpty())
	return;

	String editedEntry= selected.get(0);

	List<String> existing= fList.getElements();
	existing.remove(editedEntry);
	boolean isType= editedEntry.endsWith(WILDCARD);
	FavoriteStaticMemberInputDialog dialog= new FavoriteStaticMemberInputDialog(getShell(), existing, !isType, false);
	if (isType)
	dialog.setInitialSelection(editedEntry.substring(0, editedEntry.length() - 2));
	else
	dialog.setInitialSelection(editedEntry);

	if (dialog.open() == Window.OK) {
	fList.replaceElement(editedEntry, dialog.getResult());
	}
	}
	}

	protected final void doDialogFieldChanged(DialogField field) {
	// set values in working copy
	if (field == fList)
	setValue(PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS, serializeFavorites(fList.getElements()));
	}

	private String[] getFavoriteStaticMembersPreference() {
	String str= getValue(PREF_CODEASSIST_FAVORITE_STATIC_MEMBERS);
	if (str != null && str.length() > 0)
	return deserializeFavorites(str);
	return new String[0];
	}

	private static String[] deserializeFavorites(String str) {
	return str.split(";"); //$NON-NLS-1$
	}

	private static String serializeFavorites(List<String> favorites) {
	int size= favorites.size();
	StringBuffer buf= new StringBuffer();
	for (int i= 0; i < size; i++) {
	buf.append(favorites.get(i));
	if (i < size -1)
	buf.append(';');
	}
	return buf.toString();
	}

	}