+++ /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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