/*******************************************************************************
* Copyright (c) 2006, 2011 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.refactoring;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.layout.PixelConverter;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.ComboBoxCellEditor;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableLayout;
import org.eclipse.jface.window.Window;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.ui.refactoring.UserInputWizardPage;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.internal.corext.refactoring.structure.IMemberActionInfo;
import org.eclipse.jdt.internal.corext.refactoring.structure.PullUpRefactoringProcessor;
import org.eclipse.jdt.internal.corext.util.JdtFlags;
import org.eclipse.jdt.internal.corext.util.Messages;
import org.eclipse.jdt.ui.JavaElementLabelProvider;
import org.eclipse.jdt.ui.JavaElementLabels;
import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.util.ExceptionHandler;
import org.eclipse.jdt.internal.ui.util.SWTUtil;
import org.eclipse.jdt.internal.ui.util.TableLayoutComposite;
/**
* Wizard page for pull up refactoring wizards which allows to specify the
* actions on the members to pull up.
*
* @since 3.2
*/
public class PullUpMemberPage extends UserInputWizardPage {
private class MemberActionCellModifier implements ICellModifier {
public boolean canModify(final Object element, final String property) {
if (!ACTION_PROPERTY.equals(property))
return false;
return ((MemberActionInfo) element).isEditable();
}
public Object getValue(final Object element, final String property) {
if (!ACTION_PROPERTY.equals(property))
return null;
final MemberActionInfo info= (MemberActionInfo) element;
return new Integer(info.getAction());
}
public void modify(final Object element, final String property, final Object value) {
if (!ACTION_PROPERTY.equals(property))
return;
final int action= ((Integer) value).intValue();
MemberActionInfo info;
if (element instanceof Item) {
info= (MemberActionInfo) ((Item) element).getData();
} else
info= (MemberActionInfo) element;
if (!canModify(info, property))
return;
Assert.isTrue(info.isMethodInfo());
info.setAction(action);
updateWizardPage(null, true);
}
}
private class MemberActionInfo implements IMemberActionInfo {
private static final int NO_ACTION= 2;
private int fAction;
private final IMember fMember;
public MemberActionInfo(final IMember member, final int action) {
Assert.isTrue((member instanceof IMethod) || (member instanceof IField) || (member instanceof IType));
assertAction(member, action);
fMember= member;
fAction= action;
}
private void assertAction(final IMember member, final int action) {
if (member instanceof IMethod) {
try {
Assert.isTrue(action != DECLARE_ABSTRACT_ACTION || !JdtFlags.isStatic(member));
} catch (JavaModelException e) {
JavaPlugin.log(e);
}
Assert.isTrue(action == NO_ACTION || action == DECLARE_ABSTRACT_ACTION || action == PULL_UP_ACTION);
} else {
Assert.isTrue(action == NO_ACTION || action == PULL_UP_ACTION);
}
}
public int getAction() {
return fAction;
}
public String getActionLabel() {
switch (fAction) {
case PULL_UP_ACTION:
return getPullUpActionLabel();
case DECLARE_ABSTRACT_ACTION:
return getDeclareAbstractActionLabel();
case NO_ACTION:
return ""; //$NON-NLS-1$
default:
Assert.isTrue(false);
return null;
}
}
public String[] getAllowedLabels() {
if (isFieldInfo())
return new String[] { ""}; //$NON-NLS-1$
else if (isMethodInfo())
return METHOD_LABELS;
else if (isTypeInfo())
return TYPE_LABELS;
else {
Assert.isTrue(false);
return null;
}
}
public IMember getMember() {
return fMember;
}
public boolean isActive() {
return getAction() != NO_ACTION;
}
public boolean isEditable() {
if (fAction == NO_ACTION)
return false;
if (!isMethodInfo())
return false;
final IMethod method= (IMethod) fMember;
try {
return !JdtFlags.isStatic(method);
} catch (JavaModelException e) {
JavaPlugin.log(e);
return false;
}
}
public boolean isFieldInfo() {
return getMember() instanceof IField;
}
public boolean isMethodInfo() {
return getMember() instanceof IMethod;
}
public boolean isTypeInfo() {
return getMember() instanceof IType;
}
public void setAction(final int action) {
assertAction(fMember, action);
fAction= action;
}
}
private static class MemberActionInfoLabelProvider extends LabelProvider implements ITableLabelProvider {
private final ILabelProvider fLabelProvider= new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT | JavaElementLabelProvider.SHOW_SMALL_ICONS);
@Override
public void dispose() {
super.dispose();
fLabelProvider.dispose();
}
public Image getColumnImage(final Object element, final int columnIndex) {
final MemberActionInfo info= (MemberActionInfo) element;
switch (columnIndex) {
case MEMBER_COLUMN:
return fLabelProvider.getImage(info.getMember());
case ACTION_COLUMN:
return null;
default:
Assert.isTrue(false);
return null;
}
}
public String getColumnText(final Object element, final int columnIndex) {
final MemberActionInfo info= (MemberActionInfo) element;
switch (columnIndex) {
case MEMBER_COLUMN:
return fLabelProvider.getText(info.getMember());
case ACTION_COLUMN:
return info.getActionLabel();
default:
Assert.isTrue(false);
return null;
}
}
}
private static final int ACTION_COLUMN= 1;
private static final String ACTION_PROPERTY= "action"; //$NON-NLS-1$
protected static final int DECLARE_ABSTRACT_ACTION= 1;
private static final int MEMBER_COLUMN= 0;
private static final String MEMBER_PROPERTY= "member"; //$NON-NLS-1$
protected static final int PULL_UP_ACTION= 0;
private static final String SETTING_INSTANCEOF= "InstanceOf"; //$NON-NLS-1$
private static final String SETTING_REPLACE= "Replace"; //$NON-NLS-1$
private static int getEditableCount(final MemberActionInfo[] infos) {
int result= 0;
for (int i= 0; i < infos.length; i++) {
final MemberActionInfo info= infos[i];
if (info.isEditable())
result++;
}
return result;
}
private static void putToStringMapping(final Map<String, Integer> result, final String[] actionLabels, final int actionIndex) {
result.put(actionLabels[actionIndex], new Integer(actionIndex));
}
private static void setActionForInfos(final MemberActionInfo[] infos, final int action) {
for (int i= 0; i < infos.length; i++) {
infos[i].setAction(action);
}
}
private Button fAddButton;
protected IType[] fCandidateTypes= {};
private Button fCreateStubsButton;
private Button fDeselectAllButton;
private Button fEditButton;
private Button fInstanceofButton;
private Label fLabel;
private Button fReplaceButton;
private Button fSelectAllButton;
private Label fStatusLine;
protected final PullUpMethodPage fSuccessorPage;
private Combo fSuperTypesCombo;
private CheckboxTableViewer fTableViewer;
protected final String[] METHOD_LABELS;
protected final String[] TYPE_LABELS;
private final PullUpRefactoringProcessor fProcessor;
public PullUpMemberPage(final String name, final PullUpMethodPage page, PullUpRefactoringProcessor processor) {
super(name);
fSuccessorPage= page;
fProcessor= processor;
setDescription(RefactoringMessages.PullUpInputPage1_page_message);
METHOD_LABELS= new String[2];
METHOD_LABELS[PULL_UP_ACTION]= RefactoringMessages.PullUpInputPage1_pull_up;
METHOD_LABELS[DECLARE_ABSTRACT_ACTION]= RefactoringMessages.PullUpInputPage1_declare_abstract;
TYPE_LABELS= new String[1];
TYPE_LABELS[PULL_UP_ACTION]= RefactoringMessages.PullUpInputPage1_pull_up;
}
public PullUpRefactoringProcessor getPullUpRefactoringProcessor() {
return fProcessor;
}
private boolean areAllMembersMarkedAsPullUp() {
return getMembersForAction(PULL_UP_ACTION).length == getTableInput().length;
}
protected boolean areAllMembersMarkedAsWithNoAction() {
return getMembersForAction(MemberActionInfo.NO_ACTION).length == getTableInput().length;
}
private MemberActionInfo[] asMemberActionInfos() {
final List<IMember> toPullUp= Arrays.asList(fProcessor.getMembersToMove());
final IMember[] members= fProcessor.getPullableMembersOfDeclaringType();
final MemberActionInfo[] result= new MemberActionInfo[members.length];
for (int i= 0; i < members.length; i++) {
final IMember member= members[i];
if (toPullUp.contains(member))
result[i]= new MemberActionInfo(member, PULL_UP_ACTION);
else
result[i]= new MemberActionInfo(member, MemberActionInfo.NO_ACTION);
}
return result;
}
@Override
public boolean canFlipToNextPage() {
return isPageComplete();
}
private void checkAdditionalRequired() {
try {
initializeRefactoring();
class GetRequiredMembersRunnable implements IRunnableWithProgress {
public IMember[] result;
public void run(final IProgressMonitor pm) throws InvocationTargetException {
try {
this.result= fProcessor.getAdditionalRequiredMembersToPullUp(pm);
} catch (JavaModelException e) {
throw new InvocationTargetException(e);
} finally {
pm.done();
}
}
}
GetRequiredMembersRunnable runnable= new GetRequiredMembersRunnable();
getContainer().run(true, false, runnable);
checkPullUp(runnable.result, true);
} catch (InvocationTargetException e) {
ExceptionHandler.handle(e, getShell(), RefactoringMessages.PullUpInputPage_pull_Up, RefactoringMessages.PullUpInputPage_exception);
} catch (InterruptedException e) {
Assert.isTrue(false);
}
}
protected void checkPageCompletionStatus(final boolean displayErrors) {
if (areAllMembersMarkedAsWithNoAction()) {
if (displayErrors)
setErrorMessage(getNoMembersMessage());
setPageComplete(false);
} else {
setErrorMessage(null);
setPageComplete(true);
}
fSuccessorPage.fireSettingsChanged();
}
private void checkPullUp(final IMember[] elements, final boolean displayErrors) {
setActionForMembers(elements, PULL_UP_ACTION);
updateWizardPage(null, displayErrors);
}
private void createButtonComposite(final Composite parent) {
final Composite composite= new Composite(parent, SWT.NONE);
composite.setLayoutData(new GridData(GridData.FILL_VERTICAL));
final GridLayout gl= new GridLayout();
gl.marginHeight= 0;
gl.marginWidth= 0;
composite.setLayout(gl);
fSelectAllButton= new Button(composite, SWT.PUSH);
fSelectAllButton.setText(RefactoringMessages.PullUpWizard_select_all_label);
fSelectAllButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
fSelectAllButton.setEnabled(true);
SWTUtil.setButtonDimensionHint(fSelectAllButton);
fSelectAllButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent event) {
final IMember[] members= getMembers();
setActionForMembers(members, PULL_UP_ACTION);
updateWizardPage(null, true);
}
});
fDeselectAllButton= new Button(composite, SWT.PUSH);
fDeselectAllButton.setText(RefactoringMessages.PullUpWizard_deselect_all_label);
fDeselectAllButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
fDeselectAllButton.setEnabled(false);
SWTUtil.setButtonDimensionHint(fDeselectAllButton);
fDeselectAllButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent event) {
final IMember[] members= getMembers();
setActionForMembers(members, MemberActionInfo.NO_ACTION);
updateWizardPage(null, true);
}
});
fEditButton= new Button(composite, SWT.PUSH);
fEditButton.setText(RefactoringMessages.PullUpInputPage1_Edit);
final GridData data= new GridData(GridData.FILL_HORIZONTAL);
data.verticalIndent= new PixelConverter(parent).convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
fEditButton.setLayoutData(data);
fEditButton.setEnabled(false);
SWTUtil.setButtonDimensionHint(fEditButton);
fEditButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent event) {
editSelectedMembers();
}
});
fAddButton= new Button(composite, SWT.PUSH);
fAddButton.setText(RefactoringMessages.PullUpInputPage1_Add_Required);
fAddButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
SWTUtil.setButtonDimensionHint(fAddButton);
fAddButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent event) {
checkAdditionalRequired();
}
});
}
public void createControl(final Composite parent) {
final Composite composite= new Composite(parent, SWT.NONE);
final GridLayout layout= new GridLayout();
layout.numColumns= 2;
composite.setLayout(layout);
createSuperTypeControl(composite);
createSpacer(composite);
createSuperTypeCheckbox(composite);
createInstanceOfCheckbox(composite, layout.marginWidth);
createStubCheckbox(composite);
createSpacer(composite);
createMemberTableLabel(composite);
createMemberTableComposite(composite);
createStatusLine(composite);
setControl(composite);
Dialog.applyDialogFont(composite);
initializeEnablement();
initializeCheckboxes();
PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaHelpContextIds.PULL_UP_WIZARD_PAGE);
}
protected void createInstanceOfCheckbox(final Composite result, final int margin) {
fInstanceofButton= new Button(result, SWT.CHECK);
fInstanceofButton.setSelection(false);
final GridData gd= new GridData();
gd.horizontalIndent= (margin + fInstanceofButton.computeSize(SWT.DEFAULT, SWT.DEFAULT).x);
gd.horizontalSpan= 2;
fInstanceofButton.setLayoutData(gd);
fInstanceofButton.setText(getInstanceofButtonLabel());
fProcessor.setInstanceOf(fInstanceofButton.getSelection());
fInstanceofButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent e) {
fProcessor.setInstanceOf(fInstanceofButton.getSelection());
}
});
fReplaceButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(final SelectionEvent e) {
fInstanceofButton.setEnabled(fReplaceButton.getSelection());
}
});
}
private void createMemberTable(final Composite parent) {
final TableLayoutComposite layouter= new TableLayoutComposite(parent, SWT.NONE);
layouter.addColumnData(new ColumnWeightData(60, true));
layouter.addColumnData(new ColumnWeightData(40, true));
final Table table= new Table(layouter, SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION | SWT.CHECK);
table.setHeaderVisible(true);
table.setLinesVisible(true);
final GridData gd= new GridData(GridData.FILL_BOTH);
gd.heightHint= SWTUtil.getTableHeightHint(table, getTableRowCount());
gd.widthHint= convertWidthInCharsToPixels(30);
layouter.setLayoutData(gd);
final TableLayout tableLayout= new TableLayout();
table.setLayout(tableLayout);
final TableColumn column0= new TableColumn(table, SWT.NONE);
column0.setText(RefactoringMessages.PullUpInputPage1_Member);
final TableColumn column1= new TableColumn(table, SWT.NONE);
column1.setText(RefactoringMessages.PullUpInputPage1_Action);
fTableViewer= new PullPushCheckboxTableViewer(table);
fTableViewer.setUseHashlookup(true);
fTableViewer.setContentProvider(new ArrayContentProvider());
fTableViewer.setLabelProvider(new MemberActionInfoLabelProvider());
fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(final SelectionChangedEvent event) {
updateButtonEnablement(event.getSelection());
}
});
fTableViewer.addCheckStateListener(new ICheckStateListener() {
public void checkStateChanged(final CheckStateChangedEvent event) {
final boolean checked= event.getChecked();
final MemberActionInfo info= (MemberActionInfo) event.getElement();
if (checked)
info.setAction(PULL_UP_ACTION);
else
info.setAction(MemberActionInfo.NO_ACTION);
updateWizardPage(null, true);
}
});
fTableViewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(final DoubleClickEvent event) {
editSelectedMembers();
}
});
setTableInput();
checkPullUp(fProcessor.getMembersToMove(), false);
setupCellEditors(table);
}
protected void createMemberTableComposite(final Composite parent) {
final Composite composite= new Composite(parent, SWT.NONE);
final GridData data= new GridData(GridData.FILL_BOTH);
data.horizontalSpan= 2;
composite.setLayoutData(data);
final GridLayout layout= new GridLayout();
layout.numColumns= 2;
layout.marginWidth= 0;
layout.marginHeight= 0;
composite.setLayout(layout);
createMemberTable(composite);
createButtonComposite(composite);
}
protected void createMemberTableLabel(final Composite parent) {
fLabel= new Label(parent, SWT.NONE);
fLabel.setText(RefactoringMessages.PullUpInputPage1_Specify_actions);
final GridData data= new GridData();
data.horizontalSpan= 2;
fLabel.setLayoutData(data);
}
protected void createSpacer(final Composite parent) {
final Label label= new Label(parent, SWT.NONE);
final GridData data= new GridData();
data.horizontalSpan= 2;
data.heightHint= convertHeightInCharsToPixels(1) / 2;
label.setLayoutData(data);
}
protected void createStatusLine(final Composite composite) {
fStatusLine= new Label(composite, SWT.NONE);
final GridData data= new GridData(SWT.FILL, SWT.CENTER, false, false);
data.horizontalSpan= 2;
updateStatusLine();
fStatusLine.setLayoutData(data);
}
// String -> Integer
private Map<String, Integer> createStringMappingForSelectedMembers() {
final Map<String, Integer> result= new HashMap<String, Integer>();
putToStringMapping(result, METHOD_LABELS, PULL_UP_ACTION);
putToStringMapping(result, METHOD_LABELS, DECLARE_ABSTRACT_ACTION);
return result;
}
protected void createStubCheckbox(final Composite parent) {
fCreateStubsButton= new Button(parent, SWT.CHECK);
fCreateStubsButton.setText(getCreateStubsButtonLabel());
final GridData data= new GridData();
data.horizontalSpan= 2;
fCreateStubsButton.setLayoutData(data);
fCreateStubsButton.setEnabled(false);
fCreateStubsButton.setSelection(fProcessor.getCreateMethodStubs());
}
protected void createSuperTypeCheckbox(final Composite parent) {
fReplaceButton= new Button(parent, SWT.CHECK);
fReplaceButton.setText(getReplaceButtonLabel());
final GridData data= new GridData();
data.horizontalSpan= 2;
fReplaceButton.setLayoutData(data);
fReplaceButton.setEnabled(true);
fReplaceButton.setSelection(fProcessor.isReplace());
}
private void createSuperTypeCombo(Composite parent) {
final Label label= new Label(parent, SWT.NONE);
label.setText(RefactoringMessages.PullUpInputPage1_Select_destination);
label.setLayoutData(new GridData());
fSuperTypesCombo= new Combo(parent, SWT.READ_ONLY);
SWTUtil.setDefaultVisibleItemCount(fSuperTypesCombo);
if (fCandidateTypes.length > 0) {
for (int i= 0; i < fCandidateTypes.length; i++) {
final String comboLabel= fCandidateTypes[i].getFullyQualifiedName('.');
fSuperTypesCombo.add(comboLabel);
}
fSuperTypesCombo.select(fCandidateTypes.length - 1);
fSuperTypesCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
}
}
protected void createSuperTypeControl(final Composite parent) {
try {
PlatformUI.getWorkbench().getActiveWorkbenchWindow().run(true, false, new IRunnableWithProgress() {
public void run(final IProgressMonitor monitor) throws InvocationTargetException {
try {
fCandidateTypes= fProcessor.getCandidateTypes(new RefactoringStatus(), monitor);
} catch (JavaModelException exception) {
throw new InvocationTargetException(exception);
} finally {
monitor.done();
}
}
});
createSuperTypeCombo(parent);
} catch (InvocationTargetException exception) {
ExceptionHandler.handle(exception, getShell(), RefactoringMessages.PullUpInputPage_pull_Up, RefactoringMessages.PullUpInputPage_exception);
} catch (InterruptedException exception) {
Assert.isTrue(false);
}
}
@Override
public void dispose() {
fInstanceofButton= null;
fReplaceButton= null;
fTableViewer= null;
super.dispose();
}
private void editSelectedMembers() {
if (!fEditButton.isEnabled())
return;
final ISelection preserved= fTableViewer.getSelection();
try {
MemberActionInfo[] selectedMembers= getSelectedMembers();
final String shellTitle= RefactoringMessages.PullUpInputPage1_Edit_members;
final String labelText= selectedMembers.length == 1
? Messages.format(RefactoringMessages.PullUpInputPage1_Mark_selected_members_singular, JavaElementLabels.getElementLabel(selectedMembers[0].getMember(),
JavaElementLabels.M_PARAMETER_TYPES))
: Messages.format(RefactoringMessages.PullUpInputPage1_Mark_selected_members_plural, String.valueOf(selectedMembers.length));
final Map<String, Integer> stringMapping= createStringMappingForSelectedMembers();
final String[] keys= stringMapping.keySet().toArray(new String[stringMapping.keySet().size()]);
Arrays.sort(keys);
final int initialSelectionIndex= getInitialSelectionIndexForEditDialog(stringMapping, keys);
final ComboSelectionDialog dialog= new ComboSelectionDialog(getShell(), shellTitle, labelText, keys, initialSelectionIndex);
dialog.setBlockOnOpen(true);
if (dialog.open() == Window.CANCEL)
return;
final int action= stringMapping.get(dialog.getSelectedString()).intValue();
setActionForInfos(selectedMembers, action);
} finally {
updateWizardPage(preserved, true);
}
}
private boolean enableEditButton(final IStructuredSelection ss) {
if (ss.isEmpty() || ss.size() == 0)
return false;
return ss.size() == getEditableCount(getSelectedMembers());
}
private MemberActionInfo[] getActiveInfos() {
final MemberActionInfo[] infos= getTableInput();
final List<MemberActionInfo> result= new ArrayList<MemberActionInfo>(infos.length);
for (int i= 0; i < infos.length; i++) {
final MemberActionInfo info= infos[i];
if (info.isActive())
result.add(info);
}
return result.toArray(new MemberActionInfo[result.size()]);
}
private int getCommonActionCodeForSelectedInfos() {
final MemberActionInfo[] infos= getSelectedMembers();
if (infos.length == 0)
return -1;
final int code= infos[0].getAction();
for (int i= 0; i < infos.length; i++) {
if (code != infos[i].getAction())
return -1;
}
return code;
}
protected String getCreateStubsButtonLabel() {
return RefactoringMessages.PullUpInputPage1_Create_stubs;
}
protected String getDeclareAbstractActionLabel() {
return RefactoringMessages.PullUpInputPage1_declare_abstract;
}
public IType getDestinationType() {
final int index= fSuperTypesCombo.getSelectionIndex();
if (index >= 0)
return fCandidateTypes[index];
return null;
}
private int getInitialSelectionIndexForEditDialog(final Map<String, Integer> stringMapping, final String[] keys) {
final int commonActionCode= getCommonActionCodeForSelectedInfos();
if (commonActionCode == -1)
return 0;
for (final Iterator<String> iter= stringMapping.keySet().iterator(); iter.hasNext();) {
final String key= iter.next();
final int action= stringMapping.get(key).intValue();
if (commonActionCode == action) {
for (int i= 0; i < keys.length; i++) {
if (key.equals(keys[i]))
return i;
}
Assert.isTrue(false);
}
}
return 0;
}
protected String getInstanceofButtonLabel() {
return RefactoringMessages.PullUpInputPage1_label_use_in_instanceof;
}
private IMember[] getMembers() {
final MemberActionInfo[] infos= getTableInput();
final List<IMember> result= new ArrayList<IMember>(infos.length);
for (int index= 0; index < infos.length; index++) {
result.add(infos[index].getMember());
}
return result.toArray(new IMember[result.size()]);
}
private IMember[] getMembersForAction(final int action) {
List<IMember> result= new ArrayList<IMember>();
getMembersForAction(action, false, result);
return result.toArray(new IMember[result.size()]);
}
private IMethod[] getMethodsForAction(final int action) {
List<IMember> result= new ArrayList<IMember>();
getMembersForAction(action, true, result);
return result.toArray(new IMethod[result.size()]);
}
private void getMembersForAction(int action, boolean onlyMethods, List<IMember> result) {
boolean isDestinationInterface= isDestinationInterface();
final MemberActionInfo[] infos= getTableInput();
for (int index= 0; index < infos.length; index++) {
MemberActionInfo info= infos[index];
int infoAction= info.getAction();
boolean isMethodInfo= info.isMethodInfo();
if (!isMethodInfo && onlyMethods)
continue;
if (isMethodInfo && isDestinationInterface) {
if (action == PULL_UP_ACTION)
continue; // skip methods pulled up to interface
if (action == DECLARE_ABSTRACT_ACTION && infoAction == PULL_UP_ACTION)
infoAction= DECLARE_ABSTRACT_ACTION; // method pulled to interface must be declared abstract
}
if (infoAction == action)
result.add(info.getMember());
}
}
private boolean isDestinationInterface() {
IType destination= getDestinationType();
try {
if (destination != null && destination.isInterface()) {
return true;
}
} catch (JavaModelException exception) {
JavaPlugin.log(exception);
}
return false;
}
@Override
public IWizardPage getNextPage() {
initializeRefactoring();
storeDialogSettings();
if (getMethodsForAction(PULL_UP_ACTION).length == 0)
return computeSuccessorPage();
if (isDestinationInterface())
return computeSuccessorPage();
return super.getNextPage();
}
protected String getNoMembersMessage() {
return RefactoringMessages.PullUpInputPage1_Select_members_to_pull_up;
}
protected String getPullUpActionLabel() {
return RefactoringMessages.PullUpInputPage1_pull_up;
}
protected String getReplaceButtonLabel() {
return RefactoringMessages.PullUpInputPage1_label_use_destination;
}
private MemberActionInfo[] getSelectedMembers() {
Assert.isTrue(fTableViewer.getSelection() instanceof IStructuredSelection);
final IStructuredSelection structured= (IStructuredSelection) fTableViewer.getSelection();
final List<?> result= structured.toList();
return result.toArray(new MemberActionInfo[result.size()]);
}
private MemberActionInfo[] getTableInput() {
return (MemberActionInfo[]) fTableViewer.getInput();
}
protected int getTableRowCount() {
return 10;
}
private void initializeCheckBox(final Button checkbox, final String property, final boolean def) {
final String s= JavaPlugin.getDefault().getDialogSettings().get(property);
if (s != null)
checkbox.setSelection(new Boolean(s).booleanValue());
else
checkbox.setSelection(def);
}
protected void initializeCheckboxes() {
initializeCheckBox(fReplaceButton, SETTING_REPLACE, true);
initializeCheckBox(fInstanceofButton, SETTING_INSTANCEOF, false);
}
protected void initializeEnablement() {
MemberActionInfo[] infos= asMemberActionInfos();
final boolean enabled= infos.length > 0;
fTableViewer.getTable().setEnabled(enabled);
fStatusLine.setEnabled(enabled);
fAddButton.setEnabled(enabled);
fLabel.setEnabled(enabled);
}
private void initializeRefactoring() {
fProcessor.setMembersToMove(getMembersForAction(PULL_UP_ACTION));
fProcessor.setAbstractMethods(getMethodsForAction(DECLARE_ABSTRACT_ACTION));
final IType destination= getDestinationType();
if (destination != null)
fProcessor.setDestinationType(destination);
fProcessor.setCreateMethodStubs(fCreateStubsButton.getSelection());
fProcessor.setReplace(fReplaceButton.getSelection());
fProcessor.setInstanceOf(fInstanceofButton.getSelection());
fProcessor.setDeletedMethods(getMethodsForAction(PULL_UP_ACTION));
}
@Override
protected boolean performFinish() {
initializeRefactoring();
storeDialogSettings();
return super.performFinish();
}
private void setActionForMembers(final IMember[] members, final int action) {
final MemberActionInfo[] infos= getTableInput();
for (int i= 0; i < members.length; i++) {
for (int j= 0; j < infos.length; j++) {
if (infos[j].getMember().equals(members[i]))
infos[j].setAction(action);
}
}
}
private void setTableInput() {
fTableViewer.setInput(asMemberActionInfos());
}
private void setupCellEditors(final Table table) {
final ComboBoxCellEditor editor= new ComboBoxCellEditor();
editor.setStyle(SWT.READ_ONLY);
fTableViewer.setCellEditors(new CellEditor[] { null, editor});
fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(final SelectionChangedEvent event) {
if (editor.getControl() == null & !table.isDisposed())
editor.create(table);
final ISelection sel= event.getSelection();
if (!(sel instanceof IStructuredSelection))
return;
final IStructuredSelection structured= (IStructuredSelection) sel;
if (structured.size() != 1)
return;
final MemberActionInfo info= (MemberActionInfo) structured.getFirstElement();
editor.setItems(info.getAllowedLabels());
editor.setValue(new Integer(info.getAction()));
}
});
final ICellModifier cellModifier= new MemberActionCellModifier();
fTableViewer.setCellModifier(cellModifier);
fTableViewer.setColumnProperties(new String[] { MEMBER_PROPERTY, ACTION_PROPERTY});
}
@Override
public void setVisible(final boolean visible) {
super.setVisible(visible);
if (visible) {
try {
fProcessor.resetEnvironment();
} finally {
fTableViewer.setSelection(new StructuredSelection(getActiveInfos()), true);
fTableViewer.getControl().setFocus();
}
}
}
private void storeDialogSettings() {
final IDialogSettings settings= JavaPlugin.getDefault().getDialogSettings();
settings.put(SETTING_REPLACE, fReplaceButton.getSelection());
settings.put(SETTING_INSTANCEOF, fInstanceofButton.getSelection());
}
private void updateButtonEnablement(final ISelection selection) {
if (fEditButton != null)
fEditButton.setEnabled(enableEditButton((IStructuredSelection) selection));
fCreateStubsButton.setEnabled(getMethodsForAction(DECLARE_ABSTRACT_ACTION).length != 0);
fInstanceofButton.setEnabled(fReplaceButton.getSelection());
if (fSelectAllButton != null)
fSelectAllButton.setEnabled(!areAllMembersMarkedAsPullUp());
if (fDeselectAllButton != null)
fDeselectAllButton.setEnabled(!areAllMembersMarkedAsWithNoAction());
}
private void updateStatusLine() {
if (fStatusLine == null)
return;
Object[] selectedMembers= fTableViewer.getCheckedElements();
final int selected= selectedMembers.length;
final String msg= selected == 1 ? Messages.format(RefactoringMessages.PullUpInputPage1_status_line_singular, JavaElementLabels.getElementLabel(
((MemberActionInfo)selectedMembers[0]).getMember(), JavaElementLabels.M_PARAMETER_TYPES)) : Messages.format(RefactoringMessages.PullUpInputPage1_status_line_plural, String
.valueOf(selected));
fStatusLine.setText(msg);
}
private void updateWizardPage(final ISelection selection, final boolean displayErrors) {
fTableViewer.refresh();
if (selection != null) {
fTableViewer.getControl().setFocus();
fTableViewer.setSelection(selection);
}
checkPageCompletionStatus(displayErrors);
updateButtonEnablement(fTableViewer.getSelection());
updateStatusLine();
}
}
