| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.ui.actions; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Iterator; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.swt.widgets.Shell; |
| |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.window.Window; |
| |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.text.source.IAnnotationModel; |
| |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IParent; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.codemanipulation.SortMembersOperation; |
| |
| import org.eclipse.jdt.ui.JavaUI; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.actions.ActionMessages; |
| import org.eclipse.jdt.internal.ui.actions.ActionUtil; |
| import org.eclipse.jdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter; |
| import org.eclipse.jdt.internal.ui.dialogs.OptionalMessageDialog; |
| import org.eclipse.jdt.internal.ui.dialogs.SortMembersMessageDialog; |
| import org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor; |
| import org.eclipse.jdt.internal.ui.javaeditor.EditorUtility; |
| import org.eclipse.jdt.internal.ui.javaeditor.IJavaAnnotation; |
| import org.eclipse.jdt.internal.ui.util.BusyIndicatorRunnableContext; |
| import org.eclipse.jdt.internal.ui.util.ElementValidator; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| /** |
| * Sorts the members of a compilation unit with the sort order as specified in |
| * the Sort Order preference page. |
| * <p> |
| * The action will open the parent compilation unit in a Java editor. The result |
| * is unsaved, so the user can decide if the changes are acceptable. |
| * <p> |
| * The action is applicable to structured selections containing a single |
| * <code>ICompilationUnit</code> or top level <code>IType</code> in a |
| * compilation unit. |
| * |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * @since 2.1 |
| */ |
| public class SortMembersAction extends SelectionDispatchAction { |
| |
| private CompilationUnitEditor fEditor; |
| private final static String ID_OPTIONAL_DIALOG= "org.eclipse.jdt.ui.actions.SortMembersAction"; //$NON-NLS-1$ |
| |
| /** |
| * Creates a new <code>SortMembersAction</code>. The action requires |
| * that the selection provided by the site's selection provider is of type <code> |
| * org.eclipse.jface.viewers.IStructuredSelection</code>. |
| * |
| * @param site the site providing context information for this action |
| */ |
| public SortMembersAction(IWorkbenchSite site) { |
| super(site); |
| setText(ActionMessages.SortMembersAction_label); |
| setDescription(ActionMessages.SortMembersAction_description); |
| setToolTipText(ActionMessages.SortMembersAction_tooltip); |
| |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.SORT_MEMBERS_ACTION); |
| } |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor the compilation unit editor |
| */ |
| public SortMembersAction(CompilationUnitEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(checkEnabledEditor()); |
| } |
| |
| private boolean checkEnabledEditor() { |
| return fEditor != null && SelectionConverter.canOperateOn(fEditor); |
| } |
| |
| //---- Structured Viewer ----------------------------------------------------------- |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void selectionChanged(IStructuredSelection selection) { |
| boolean enabled= false; |
| enabled= getSelectedCompilationUnit(selection) != null; |
| setEnabled(enabled); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void run(IStructuredSelection selection) { |
| Shell shell= getShell(); |
| try { |
| ICompilationUnit cu= getSelectedCompilationUnit(selection); |
| if (cu == null) { |
| return; |
| } |
| IType[] types= cu.getTypes(); |
| if (!hasMembersToSort(types)) { |
| MessageDialog.openInformation(getShell(), getDialogTitle(), ActionMessages.SortMembersAction_no_members); |
| return; |
| } |
| if (!ActionUtil.isProcessable(getShell(), cu)) { |
| return; |
| } |
| |
| SortMembersMessageDialog dialog= new SortMembersMessageDialog(getShell()); |
| if (dialog.open() != Window.OK) { |
| return; |
| } |
| |
| if (!ElementValidator.check(cu, getShell(), getDialogTitle(), false)) { |
| return; |
| } |
| |
| // open an editor and work on a working copy |
| IEditorPart editor= EditorUtility.openInEditor(cu); |
| if (editor != null) { |
| run(shell, cu, editor, dialog.isNotSortingFieldsEnabled()); |
| } |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, shell, getDialogTitle(), null); |
| } |
| } |
| |
| private boolean hasMembersToSort(IJavaElement[] members) throws JavaModelException { |
| if (members.length > 1) { |
| return true; |
| } |
| if (members.length == 1) { |
| IJavaElement elem= members[0]; |
| if (elem instanceof IParent) { |
| return hasMembersToSort(((IParent) elem).getChildren()); |
| } |
| } |
| return false; |
| } |
| |
| //---- Java Editor -------------------------------------------------------------- |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void selectionChanged(ITextSelection selection) { |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void run(ITextSelection selection) { |
| Shell shell= getShell(); |
| IJavaElement input= SelectionConverter.getInput(fEditor); |
| if (input instanceof ICompilationUnit) { |
| if (!ActionUtil.isProcessable(getShell(), input)) { |
| return; |
| } |
| SortMembersMessageDialog dialog= new SortMembersMessageDialog(getShell()); |
| if (dialog.open() != Window.OK) { |
| return; |
| } |
| if (!ElementValidator.check(input, getShell(), getDialogTitle(), true)) { |
| return; |
| } |
| run(shell, (ICompilationUnit) input, fEditor, dialog.isNotSortingFieldsEnabled()); |
| } else { |
| MessageDialog.openInformation(shell, getDialogTitle(), ActionMessages.SortMembersAction_not_applicable); |
| } |
| } |
| |
| //---- Helpers ------------------------------------------------------------------- |
| |
| private boolean containsRelevantMarkers(IEditorPart editor) { |
| IAnnotationModel model= JavaUI.getDocumentProvider().getAnnotationModel(editor.getEditorInput()); |
| Iterator iterator= model.getAnnotationIterator(); |
| while (iterator.hasNext()) { |
| Object element= iterator.next(); |
| if (element instanceof IJavaAnnotation) { |
| IJavaAnnotation annot= (IJavaAnnotation) element; |
| if (!annot.isMarkedDeleted() && annot.isPersistent() && !annot.isProblem()) |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private void run(Shell shell, ICompilationUnit cu, IEditorPart editor, boolean isNotSortFields) { |
| if (containsRelevantMarkers(editor)) { |
| int returnCode= OptionalMessageDialog.open(ID_OPTIONAL_DIALOG, |
| getShell(), |
| getDialogTitle(), |
| null, |
| ActionMessages.SortMembersAction_containsmarkers, |
| MessageDialog.WARNING, |
| new String[] {IDialogConstants.OK_LABEL, IDialogConstants.CANCEL_LABEL}, |
| 0); |
| if (returnCode != OptionalMessageDialog.NOT_SHOWN && |
| returnCode != Window.OK ) return; |
| } |
| |
| SortMembersOperation op= new SortMembersOperation(cu, null, isNotSortFields); |
| try { |
| BusyIndicatorRunnableContext context= new BusyIndicatorRunnableContext(); |
| PlatformUI.getWorkbench().getProgressService().runInUI(context, |
| new WorkbenchRunnableAdapter(op, op.getScheduleRule()), |
| op.getScheduleRule()); |
| } catch (InvocationTargetException e) { |
| ExceptionHandler.handle(e, shell, getDialogTitle(), null); |
| } catch (InterruptedException e) { |
| // Do nothing. Operation has been canceled by user. |
| } |
| } |
| |
| |
| private ICompilationUnit getSelectedCompilationUnit(IStructuredSelection selection) { |
| if (selection.size() == 1) { |
| Object element= selection.getFirstElement(); |
| if (element instanceof ICompilationUnit) { |
| return (ICompilationUnit) element; |
| } else if (element instanceof IType) { |
| IType type= (IType) element; |
| if (type.getParent() instanceof ICompilationUnit) { // only top level types |
| return type.getCompilationUnit(); |
| } |
| } |
| } |
| return null; |
| } |
| |
| private String getDialogTitle() { |
| return ActionMessages.SortMembersAction_dialog_title; |
| } |
| } |