--- /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.phpeclipse.phpeditor;
+
+import net.sourceforge.phpdt.core.ICompilationUnit;
+import net.sourceforge.phpdt.core.IJavaElement;
+import net.sourceforge.phpdt.core.IJavaProject;
+import net.sourceforge.phpdt.core.IMember;
+import net.sourceforge.phpdt.core.IWorkingCopy;
+import net.sourceforge.phpdt.core.JavaCore;
+import net.sourceforge.phpdt.core.JavaModelException;
+import net.sourceforge.phpdt.internal.corext.util.JavaModelUtil;
+import net.sourceforge.phpdt.ui.JavaUI;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.jface.action.Action;
+import org.eclipse.swt.SWT;
+import org.eclipse.ui.IEditorDescriptor;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IEditorRegistry;
+import org.eclipse.ui.IFileEditorInput;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.ide.IDE;
+import org.eclipse.ui.part.FileEditorInput;
+import org.eclipse.ui.texteditor.ITextEditor;
+
+/**
+ * A number of routines for working with JavaElements in editors
+ *
+ * Use 'isOpenInEditor' to test if an element is already open in a editor Use
+ * 'openInEditor' to force opening an element in a editor With 'getWorkingCopy'
+ * you get the working copy (element in the editor) of an element
+ */
+public class EditorUtility {
+
+// public static boolean isEditorInput(Object element, IEditorPart editor) {
+// if (editor != null) {
+// try {
+// return editor.getEditorInput().equals(getEditorInput(element));
+// } catch (JavaModelException x) {
+// PHPeclipsePlugin.log(x.getStatus());
+// }
+// }
+// return false;
+// }
+
+ /**
+ * Tests if a cu is currently shown in an editor
+ *
+ * @return the IEditorPart if shown, null if element is not open in an
+ * editor
+ */
+// public static IEditorPart isOpenInEditor(Object inputElement) {
+// IEditorInput input = null;
+//
+// try {
+// input = getEditorInput(inputElement);
+// } catch (JavaModelException x) {
+// PHPeclipsePlugin.log(x.getStatus());
+// }
+//
+// if (input != null) {
+// IWorkbenchPage p = PHPeclipsePlugin.getActivePage();
+// if (p != null) {
+// return p.findEditor(input);
+// }
+// }
+//
+// return null;
+// }
+
+ /**
+ * Opens a Java editor for an element such as <code>IJavaElement</code>,
+ * <code>IFile</code>, or <code>IStorage</code>. The editor is
+ * activated by default.
+ *
+ * @return the IEditorPart or null if wrong element type or opening failed
+ */
+ public static IEditorPart openInEditor(Object inputElement)
+ throws JavaModelException, PartInitException {
+ return openInEditor(inputElement, true);
+ }
+
+ /**
+ * Opens a Java editor for an element (IJavaElement, IFile, IStorage...)
+ *
+ * @return the IEditorPart or null if wrong element type or opening failed
+ */
+ public static IEditorPart openInEditor(Object inputElement, boolean activate)
+ throws JavaModelException, PartInitException {
+
+ if (inputElement instanceof IFile)
+ return openInEditor((IFile) inputElement, activate);
+
+ IEditorInput input = getEditorInput(inputElement);
+ if (input instanceof IFileEditorInput) {
+ IFileEditorInput fileInput = (IFileEditorInput) input;
+ return openInEditor(fileInput.getFile(), activate);
+ }
+
+ if (input != null)
+ return openInEditor(input, getEditorID(input, inputElement),
+ activate);
+
+ return null;
+ }
+
+ /**
+ * Selects a Java Element in an editor
+ */
+ public static void revealInEditor(IEditorPart part, IJavaElement element) {
+ if (element != null && part instanceof PHPEditor) {
+ ((PHPEditor) part).setSelection(element);
+ }
+ }
+
+ private static IEditorPart openInEditor(IFile file, boolean activate)
+ throws PartInitException {
+ if (file != null) {
+ IWorkbenchPage p = PHPeclipsePlugin.getActivePage();
+ if (p != null) {
+ IEditorPart editorPart = IDE.openEditor(p, file, activate);
+ initializeHighlightRange(editorPart);
+ return editorPart;
+ }
+ }
+ return null;
+ }
+
+ private static IEditorPart openInEditor(IEditorInput input,
+ String editorID, boolean activate) throws PartInitException {
+ if (input != null) {
+ IWorkbenchPage p = PHPeclipsePlugin.getActivePage();
+ if (p != null) {
+ IEditorPart editorPart = p
+ .openEditor(input, editorID, activate);
+ initializeHighlightRange(editorPart);
+ return editorPart;
+ }
+ }
+ return null;
+ }
+
+ private static void initializeHighlightRange(IEditorPart editorPart) {
+ if (editorPart instanceof ITextEditor) {
+ TogglePresentationAction toggleAction = new TogglePresentationAction();
+ // Initialize editor
+ toggleAction.setEditor((ITextEditor) editorPart);
+ // Reset action
+ toggleAction.setEditor(null);
+ }
+ }
+
+ /**
+ * @deprecated Made it public again for java debugger UI.
+ */
+ public static String getEditorID(IEditorInput input, Object inputObject) {
+ IEditorRegistry registry = PlatformUI.getWorkbench()
+ .getEditorRegistry();
+ IEditorDescriptor descriptor = registry.getDefaultEditor(input
+ .getName());
+ if (descriptor != null)
+ return descriptor.getId();
+ return null;
+ }
+
+ private static IEditorInput getEditorInput(IJavaElement element)
+ throws JavaModelException {
+ while (element != null) {
+ if (element instanceof IWorkingCopy
+ && ((IWorkingCopy) element).isWorkingCopy())
+ element = ((IWorkingCopy) element).getOriginalElement();
+
+ if (element instanceof ICompilationUnit) {
+ ICompilationUnit unit = (ICompilationUnit) element;
+ IResource resource = unit.getResource();
+ if (resource instanceof IFile)
+ return new FileEditorInput((IFile) resource);
+ }
+
+ // if (element instanceof IClassFile)
+ // return new InternalClassFileEditorInput((IClassFile) element);
+ //
+ element = element.getParent();
+ }
+
+ return null;
+ }
+
+ public static IEditorInput getEditorInput(Object input)
+ throws JavaModelException {
+
+ if (input instanceof IJavaElement)
+ return getEditorInput((IJavaElement) input);
+
+ if (input instanceof IFile)
+ return new FileEditorInput((IFile) input);
+
+ // if (input instanceof IStorage)
+ // return new JarEntryEditorInput((IStorage)input);
+
+ return null;
+ }
+
+ /**
+ * If the current active editor edits a java element return it, else return
+ * null
+ */
+// public static IJavaElement getActiveEditorJavaInput() {
+// IWorkbenchPage page = PHPeclipsePlugin.getActivePage();
+// if (page != null) {
+// IEditorPart part = page.getActiveEditor();
+// if (part != null) {
+// IEditorInput editorInput = part.getEditorInput();
+// if (editorInput != null) {
+// return (IJavaElement) editorInput
+// .getAdapter(IJavaElement.class);
+// }
+// }
+// }
+// return null;
+// }
+
+ /**
+ * Gets the working copy of an compilation unit opened in an editor
+ *
+ * @param part
+ * the editor part
+ * @param cu
+ * the original compilation unit (or another working copy)
+ * @return the working copy of the compilation unit, or null if not found
+ */
+ public static ICompilationUnit getWorkingCopy(ICompilationUnit cu) {
+ if (cu == null)
+ return null;
+ if (cu.isWorkingCopy())
+ return cu;
+
+ return (ICompilationUnit) cu.findSharedWorkingCopy(JavaUI
+ .getBufferFactory());
+ }
+
+ /**
+ * Gets the working copy of an member opened in an editor
+ *
+ * @param member
+ * the original member or a member in a working copy
+ * @return the corresponding member in the shared working copy or
+ * <code>null</code> if not found
+ */
+// public static IMember getWorkingCopy(IMember member)
+// throws JavaModelException {
+// ICompilationUnit cu = member.getCompilationUnit();
+// if (cu != null) {
+// ICompilationUnit workingCopy = getWorkingCopy(cu);
+// if (workingCopy != null) {
+// return JavaModelUtil.findMemberInCompilationUnit(workingCopy,
+// member);
+// }
+// }
+// return null;
+// }
+
+ /**
+ * Returns the compilation unit for the given java element.
+ *
+ * @param element
+ * the java element whose compilation unit is searched for
+ * @return the compilation unit of the given java element
+ */
+ private static ICompilationUnit getCompilationUnit(IJavaElement element) {
+
+ if (element == null)
+ return null;
+
+ if (element instanceof IMember)
+ return ((IMember) element).getCompilationUnit();
+
+ int type = element.getElementType();
+ if (IJavaElement.COMPILATION_UNIT == type)
+ return (ICompilationUnit) element;
+ if (IJavaElement.CLASS_FILE == type)
+ return null;
+
+ return getCompilationUnit(element.getParent());
+ }
+
+ /**
+ * Returns the working copy of the given java element.
+ *
+ * @param javaElement
+ * the javaElement for which the working copyshould be found
+ * @param reconcile
+ * indicates whether the working copy must be reconcile prior to
+ * searching it
+ * @return the working copy of the given element or <code>null</code> if
+ * none
+ */
+ public static IJavaElement getWorkingCopy(IJavaElement element,
+ boolean reconcile) throws JavaModelException {
+ ICompilationUnit unit = getCompilationUnit(element);
+ if (unit == null)
+ return null;
+
+ if (unit.isWorkingCopy())
+ return element;
+
+ ICompilationUnit workingCopy = getWorkingCopy(unit);
+ if (workingCopy != null) {
+ if (reconcile) {
+ synchronized (workingCopy) {
+ workingCopy.reconcile();
+ return JavaModelUtil.findInCompilationUnit(workingCopy,
+ element);
+ }
+ } else {
+ return JavaModelUtil
+ .findInCompilationUnit(workingCopy, element);
+ }
+ }
+
+ return null;
+ }
+
+ /**
+ * Maps the localized modifier name to a code in the same manner as
+ * #findModifier.
+ *
+ * @return the SWT modifier bit, or <code>0</code> if no match was found
+ * @see findModifier
+ * @since 2.1.1
+ */
+ public static int findLocalizedModifier(String token) {
+ if (token == null)
+ return 0;
+
+ if (token.equalsIgnoreCase(Action.findModifierString(SWT.CTRL)))
+ return SWT.CTRL;
+ if (token.equalsIgnoreCase(Action.findModifierString(SWT.SHIFT)))
+ return SWT.SHIFT;
+ if (token.equalsIgnoreCase(Action.findModifierString(SWT.ALT)))
+ return SWT.ALT;
+ if (token.equalsIgnoreCase(Action.findModifierString(SWT.COMMAND)))
+ return SWT.COMMAND;
+
+ return 0;
+ }
+
+ /**
+ * Returns the modifier string for the given SWT modifier modifier bits.
+ *
+ * @param stateMask
+ * the SWT modifier bits
+ * @return the modifier string
+ * @since 2.1.1
+ */
+ public static String getModifierString(int stateMask) {
+ String modifierString = ""; //$NON-NLS-1$
+ if ((stateMask & SWT.CTRL) == SWT.CTRL)
+ modifierString = appendModifierString(modifierString, SWT.CTRL);
+ if ((stateMask & SWT.ALT) == SWT.ALT)
+ modifierString = appendModifierString(modifierString, SWT.ALT);
+ if ((stateMask & SWT.SHIFT) == SWT.SHIFT)
+ modifierString = appendModifierString(modifierString, SWT.SHIFT);
+ if ((stateMask & SWT.COMMAND) == SWT.COMMAND)
+ modifierString = appendModifierString(modifierString, SWT.COMMAND);
+
+ return modifierString;
+ }
+
+ /**
+ * Appends to modifier string of the given SWT modifier bit to the given
+ * modifierString.
+ *
+ * @param modifierString
+ * the modifier string
+ * @param modifier
+ * an int with SWT modifier bit
+ * @return the concatenated modifier string
+ * @since 2.1.1
+ */
+ private static String appendModifierString(String modifierString,
+ int modifier) {
+ if (modifierString == null)
+ modifierString = ""; //$NON-NLS-1$
+ String newModifierString = Action.findModifierString(modifier);
+ if (modifierString.length() == 0)
+ return newModifierString;
+ return PHPEditorMessages
+ .getFormattedString(
+ "EditorUtility.concatModifierStrings", new String[] { modifierString, newModifierString }); //$NON-NLS-1$
+ }
+
+ /**
+ * Returns the Java project for a given editor input or <code>null</code>
+ * if no corresponding Java project exists.
+ *
+ * @param input
+ * the editor input
+ * @return the corresponding Java project
+ *
+ * @since 3.0
+ */
+ public static IJavaProject getJavaProject(IEditorInput input) {
+ IJavaProject jProject = null;
+ if (input instanceof IFileEditorInput) {
+ IProject project = ((IFileEditorInput) input).getFile()
+ .getProject();
+ if (project != null) {
+ jProject = JavaCore.create(project);
+ if (!jProject.exists())
+ jProject = null;
+ }
+ }
+ // else if (input instanceof IClassFileEditorInput) {
+ // jProject=
+ // ((IClassFileEditorInput)input).getClassFile().getJavaProject();
+ // }
+ return jProject;
+ }
+}
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