+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2003 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package net.sourceforge.phpdt.internal.ui.actions;
-
-import java.util.Iterator;
-
-import net.sourceforge.phpdt.core.ICompilationUnit;
-import net.sourceforge.phpdt.core.IJavaElement;
-import net.sourceforge.phpdt.core.IType;
-import net.sourceforge.phpdt.core.JavaModelException;
-import net.sourceforge.phpdt.internal.ui.util.ExceptionHandler;
-import net.sourceforge.phpdt.ui.IWorkingCopyManager;
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
-
-import org.eclipse.jface.text.ITextSelection;
-import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.jface.viewers.ISelectionProvider;
-import org.eclipse.jface.viewers.IStructuredSelection;
-import org.eclipse.jface.viewers.StructuredSelection;
-import org.eclipse.swt.widgets.Shell;
-import org.eclipse.ui.IEditorInput;
-import org.eclipse.ui.IWorkbenchPart;
-
-public class SelectionConverter {
-
- private static final IJavaElement[] EMPTY_RESULT= new IJavaElement[0];
-
- private SelectionConverter() {
- // no instance
- }
-
- /**
- * Converts the selection provided by the given part into a structured selection.
- * The following conversion rules are used:
- * <ul>
- * <li><code>part instanceof PHPEditor</code>: returns a structured selection
- * using code resolve to convert the editor's text selection.</li>
- * <li><code>part instanceof IWorkbenchPart</code>: returns the part's selection
- * if it is a structured selection.</li>
- * <li><code>default</code>: returns an empty structured selection.</li>
- * </ul>
- */
- public static IStructuredSelection getStructuredSelection(IWorkbenchPart part) throws JavaModelException {
- if (part instanceof PHPEditor)
- return new StructuredSelection(codeResolve((PHPEditor)part));
- ISelectionProvider provider= part.getSite().getSelectionProvider();
- if (provider != null) {
- ISelection selection= provider.getSelection();
- if (selection instanceof IStructuredSelection)
- return (IStructuredSelection)selection;
- }
- return StructuredSelection.EMPTY;
- }
-
-
- /**
- * Converts the given structured selection into an array of Java elements.
- * An empty array is returned if one of the elements stored in the structured
- * selection is not of tupe <code>IJavaElement</code>
- */
- public static IJavaElement[] getElements(IStructuredSelection selection) {
- if (!selection.isEmpty()) {
- IJavaElement[] result= new IJavaElement[selection.size()];
- int i= 0;
- for (Iterator iter= selection.iterator(); iter.hasNext(); i++) {
- Object element= (Object) iter.next();
- if (!(element instanceof IJavaElement))
- return EMPTY_RESULT;
- result[i]= (IJavaElement)element;
- }
- return result;
- }
- return EMPTY_RESULT;
- }
-
- public static boolean canOperateOn(PHPEditor editor) {
- if (editor == null)
- return false;
- return getInput(editor) != null;
-
- }
-
- /**
- * Converts the text selection provided by the given editor into an array of
- * Java elements. If the selection doesn't cover a Java element and the selection's
- * length is greater than 0 the methods returns the editor's input element.
- */
- public static IJavaElement[] codeResolveOrInput(PHPEditor editor) throws JavaModelException {
- IJavaElement input= getInput(editor);
- ITextSelection selection= (ITextSelection)editor.getSelectionProvider().getSelection();
- IJavaElement[] result= codeResolve(input, selection);
- if (result.length == 0) {
- result= new IJavaElement[] {input};
- }
- return result;
- }
-
- public static IJavaElement[] codeResolveOrInputHandled(PHPEditor editor, Shell shell, String title) {
- try {
- return codeResolveOrInput(editor);
- } catch(JavaModelException e) {
- ExceptionHandler.handle(e, shell, title, ActionMessages.getString("SelectionConverter.codeResolve_failed")); //$NON-NLS-1$
- }
- return null;
- }
-
- /**
- * Converts the text selection provided by the given editor a Java element by
- * asking the user if code reolve returned more than one result. If the selection
- * doesn't cover a Java element and the selection's length is greater than 0 the
- * methods returns the editor's input element.
- */
- public static IJavaElement codeResolveOrInput(PHPEditor editor, Shell shell, String title, String message) throws JavaModelException {
- IJavaElement[] elements= codeResolveOrInput(editor);
- if (elements == null || elements.length == 0)
- return null;
- IJavaElement candidate= elements[0];
- if (elements.length > 1) {
- candidate= OpenActionUtil.selectJavaElement(elements, shell, title, message);
- }
- return candidate;
- }
-
- public static IJavaElement codeResolveOrInputHandled(PHPEditor editor, Shell shell, String title, String message) {
- try {
- return codeResolveOrInput(editor, shell, title, message);
- } catch (JavaModelException e) {
- ExceptionHandler.handle(e, shell, title, ActionMessages.getString("SelectionConverter.codeResolveOrInput_failed")); //$NON-NLS-1$
- }
- return null;
- }
-
- public static IJavaElement[] codeResolve(PHPEditor editor) throws JavaModelException {
- return codeResolve(getInput(editor), (ITextSelection)editor.getSelectionProvider().getSelection());
- }
-
- /**
- * Converts the text selection provided by the given editor a Java element by
- * asking the user if code reolve returned more than one result. If the selection
- * doesn't cover a Java element <code>null</code> is returned.
- */
- public static IJavaElement codeResolve(PHPEditor editor, Shell shell, String title, String message) throws JavaModelException {
- IJavaElement[] elements= codeResolve(editor);
- if (elements == null || elements.length == 0)
- return null;
- IJavaElement candidate= elements[0];
- if (elements.length > 1) {
- candidate= OpenActionUtil.selectJavaElement(elements, shell, title, message);
- }
- return candidate;
- }
-
- public static IJavaElement[] codeResolveHandled(PHPEditor editor, Shell shell, String title) {
- try {
- return codeResolve(editor);
- } catch (JavaModelException e) {
- ExceptionHandler.handle(e, shell, title, ActionMessages.getString("SelectionConverter.codeResolve_failed")); //$NON-NLS-1$
- }
- return null;
- }
-
- public static IJavaElement getElementAtOffset(PHPEditor editor) throws JavaModelException {
- return getElementAtOffset(getInput(editor), (ITextSelection)editor.getSelectionProvider().getSelection());
- }
-
- public static IType getTypeAtOffset(PHPEditor editor) throws JavaModelException {
- IJavaElement element= SelectionConverter.getElementAtOffset(editor);
- IType type= (IType)element.getAncestor(IJavaElement.TYPE);
- if (type == null) {
- ICompilationUnit unit= SelectionConverter.getInputAsCompilationUnit(editor);
- if (unit != null)
- type= unit.findPrimaryType();
- }
- return type;
- }
-
- public static IJavaElement getInput(PHPEditor editor) {
- if (editor == null)
- return null;
- IEditorInput input= editor.getEditorInput();
-// if (input instanceof IClassFileEditorInput)
-// return ((IClassFileEditorInput)input).getClassFile();
- IWorkingCopyManager manager= PHPeclipsePlugin.getDefault().getWorkingCopyManager();
- return manager.getWorkingCopy(input);
- }
-
- public static ICompilationUnit getInputAsCompilationUnit(PHPEditor editor) {
- Object editorInput= SelectionConverter.getInput(editor);
- if (editorInput instanceof ICompilationUnit)
- return (ICompilationUnit)editorInput;
- else
- return null;
- }
-
- private static IJavaElement[] codeResolve(IJavaElement input, ITextSelection selection) throws JavaModelException {
-// if (input instanceof ICodeAssist) {
-// IJavaElement[] elements= ((ICodeAssist)input).codeSelect(selection.getOffset(), selection.getLength());
-// if (elements != null && elements.length > 0)
-// return elements;
-// }
- return EMPTY_RESULT;
- }
-
- private static IJavaElement getElementAtOffset(IJavaElement input, ITextSelection selection) throws JavaModelException {
- if (input instanceof ICompilationUnit) {
- ICompilationUnit cunit= (ICompilationUnit)input;
- if (cunit.isWorkingCopy()) {
- synchronized (cunit) {
- cunit.reconcile();
- }
- }
- IJavaElement ref= cunit.getElementAt(selection.getOffset());
- if (ref == null)
- return input;
- else
- return ref;
- }
-// else if (input instanceof IClassFile) {
-// IJavaElement ref= ((IClassFile)input).getElementAt(selection.getOffset());
-// if (ref == null)
-// return input;
-// else
-// return ref;
-// }
- return null;
- }
-}
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