/*******************************************************************************
* Copyright (c) 2000, 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.browsing;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.part.IShowInTargetList;
import org.eclipse.jdt.core.IClassFile;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IImportContainer;
import org.eclipse.jdt.core.IImportDeclaration;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.ui.JavaElementLabels;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jdt.ui.actions.MemberFilterActionGroup;
import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.actions.CategoryFilterActionGroup;
import org.eclipse.jdt.internal.ui.actions.LexicalSortingAction;
import org.eclipse.jdt.internal.ui.preferences.MembersOrderPreferenceCache;
import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider;
import org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider;
import org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer;
public class MembersView extends JavaBrowsingPart implements IPropertyChangeListener {
private MemberFilterActionGroup fMemberFilterActionGroup;
/**
* Category filter action group.
* @since 3.2
*/
private CategoryFilterActionGroup fCategoryFilterActionGroup;
public MembersView() {
setHasWorkingSetFilter(false);
setHasCustomSetFilter(true);
JavaPlugin.getDefault().getPreferenceStore().addPropertyChangeListener(this);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#getAdapter(java.lang.Class)
*/
@Override
public Object getAdapter(Class key) {
if (key == IShowInTargetList.class) {
return new IShowInTargetList() {
public String[] getShowInTargetIds() {
return new String[] { JavaUI.ID_PACKAGES };
}
};
}
return super.getAdapter(key);
}
/**
* Creates and returns the label provider for this part.
*
* @return the label provider
* @see org.eclipse.jface.viewers.ILabelProvider
*/
@Override
protected JavaUILabelProvider createLabelProvider() {
return new AppearanceAwareLabelProvider(
AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS | JavaElementLabels.F_APP_TYPE_SIGNATURE | JavaElementLabels.ALL_CATEGORY,
AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS
);
}
/**
* Returns the context ID for the Help system
*
* @return the string used as ID for the Help context
*/
@Override
protected String getHelpContextId() {
return IJavaHelpContextIds.MEMBERS_VIEW;
}
@Override
protected String getLinkToEditorKey() {
return PreferenceConstants.LINK_BROWSING_MEMBERS_TO_EDITOR;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#createViewer(org.eclipse.swt.widgets.Composite)
*/
@Override
protected StructuredViewer createViewer(Composite parent) {
ProblemTreeViewer viewer= new ProblemTreeViewer(parent, SWT.MULTI);
fMemberFilterActionGroup= new MemberFilterActionGroup(viewer, JavaUI.ID_MEMBERS_VIEW);
return viewer;
}
@Override
protected void fillToolBar(IToolBarManager tbm) {
tbm.add(new LexicalSortingAction(getViewer(), JavaUI.ID_MEMBERS_VIEW, getDropSupport()));
fMemberFilterActionGroup.contributeToToolBar(tbm);
super.fillToolBar(tbm);
}
/*
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#fillActionBars(org.eclipse.ui.IActionBars)
* @since 3.2
*/
@Override
protected void fillActionBars(IActionBars actionBars) {
super.fillActionBars(actionBars);
fCategoryFilterActionGroup= new CategoryFilterActionGroup(getViewer(), getViewSite().getId(), getCategoryFilterActionGroupInput());
fCategoryFilterActionGroup.contributeToViewMenu(actionBars.getMenuManager());
}
/*
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#setInput(java.lang.Object)
* @since 3.2
*/
@Override
protected void setInput(Object input) {
super.setInput(input);
if (fCategoryFilterActionGroup != null)
fCategoryFilterActionGroup.setInput(getCategoryFilterActionGroupInput());
}
private IJavaElement[] getCategoryFilterActionGroupInput() {
Object input= getInput();
if (input instanceof IJavaElement)
return new IJavaElement[] { (IJavaElement)input };
return new IJavaElement[0];
}
/**
* Answers if the given <code>element</code> is a valid
* input for this part.
*
* @param element the object to test
* @return <true> if the given element is a valid input
*/
@Override
protected boolean isValidInput(Object element) {
if (element instanceof IType) {
IType type= (IType)element;
return type.isBinary() || type.getDeclaringType() == null;
}
return false;
}
/**
* Answers if the given <code>element</code> is a valid
* element for this part.
*
* @param element the object to test
* @return <true> if the given element is a valid element
*/
@Override
protected boolean isValidElement(Object element) {
if (element instanceof IMember)
return super.isValidElement(((IMember)element).getDeclaringType());
else if (element instanceof IImportDeclaration)
return isValidElement(((IJavaElement)element).getParent());
else if (element instanceof IImportContainer) {
Object input= getViewer().getInput();
if (input instanceof IJavaElement) {
ICompilationUnit cu= (ICompilationUnit)((IJavaElement)input).getAncestor(IJavaElement.COMPILATION_UNIT);
if (cu != null) {
ICompilationUnit importContainerCu= (ICompilationUnit)((IJavaElement)element).getAncestor(IJavaElement.COMPILATION_UNIT);
return cu.equals(importContainerCu);
} else {
IClassFile cf= (IClassFile)((IJavaElement)input).getAncestor(IJavaElement.CLASS_FILE);
IClassFile importContainerCf= (IClassFile)((IJavaElement)element).getAncestor(IJavaElement.CLASS_FILE);
return cf != null && cf.equals(importContainerCf);
}
}
}
return false;
}
/**
* Finds the element which has to be selected in this part.
*
* @param je the Java element which has the focus
* @return the element to select
*/
@Override
protected IJavaElement findElementToSelect(IJavaElement je) {
if (je == null)
return null;
switch (je.getElementType()) {
case IJavaElement.TYPE:
if (((IType)je).getDeclaringType() == null)
return null;
return je;
case IJavaElement.METHOD:
case IJavaElement.INITIALIZER:
case IJavaElement.FIELD:
case IJavaElement.PACKAGE_DECLARATION:
case IJavaElement.IMPORT_CONTAINER:
return je;
case IJavaElement.IMPORT_DECLARATION:
ICompilationUnit cu= (ICompilationUnit)je.getParent().getParent();
try {
if (cu.getImports()[0].equals(je)) {
Object selectedElement= getSingleElementFromSelection(getViewer().getSelection());
if (selectedElement instanceof IImportContainer)
return (IImportContainer)selectedElement;
}
} catch (JavaModelException ex) {
// return je;
}
return je;
}
return null;
}
/**
* Finds the closest Java element which can be used as input for
* this part and has the given Java element as child.
*
* @param je the Java element for which to search the closest input
* @return the closest Java element used as input for this part, or <code>null</code>
*/
@Override
protected IJavaElement findInputForJavaElement(IJavaElement je) {
if (je == null || !je.exists() || (je.getJavaProject() != null && !je.getJavaProject().isOnClasspath(je)))
return null;
switch (je.getElementType()) {
case IJavaElement.TYPE:
IType type= ((IType)je).getDeclaringType();
if (type == null)
return je;
else
return findInputForJavaElement(type);
case IJavaElement.COMPILATION_UNIT:
return getTypeForCU((ICompilationUnit)je);
case IJavaElement.CLASS_FILE:
return findInputForJavaElement(((IClassFile)je).getType());
case IJavaElement.IMPORT_DECLARATION:
return findInputForJavaElement(je.getParent());
case IJavaElement.PACKAGE_DECLARATION:
case IJavaElement.IMPORT_CONTAINER:
IJavaElement parent= je.getParent();
if (parent instanceof ICompilationUnit) {
return getTypeForCU((ICompilationUnit)parent);
}
else if (parent instanceof IClassFile)
return findInputForJavaElement(parent);
return null;
default:
if (je instanceof IMember)
return findInputForJavaElement(((IMember)je).getDeclaringType());
}
return null;
}
/*
* Implements method from IViewPart.
*/
@Override
public void saveState(IMemento memento) {
super.saveState(memento);
fMemberFilterActionGroup.saveState(memento);
}
@Override
protected void restoreState(IMemento memento) {
super.restoreState(memento);
fMemberFilterActionGroup.restoreState(memento);
getViewer().getControl().setRedraw(false);
getViewer().refresh();
getViewer().getControl().setRedraw(true);
}
@Override
protected void hookViewerListeners() {
super.hookViewerListeners();
getViewer().addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
TreeViewer viewer= (TreeViewer)getViewer();
Object element= ((IStructuredSelection)event.getSelection()).getFirstElement();
if (viewer.isExpandable(element))
viewer.setExpandedState(element, !viewer.getExpandedState(element));
}
});
}
boolean isInputAWorkingCopy() {
Object input= getViewer().getInput();
if (input instanceof IJavaElement) {
ICompilationUnit cu= (ICompilationUnit)((IJavaElement)input).getAncestor(IJavaElement.COMPILATION_UNIT);
if (cu != null)
return cu.isWorkingCopy();
}
return false;
}
@Override
protected void restoreSelection() {
IEditorPart editor= getViewSite().getPage().getActiveEditor();
if (editor != null)
setSelectionFromEditor(editor);
}
/* (non-Javadoc)
* @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent event) {
if (MembersOrderPreferenceCache.isMemberOrderProperty(event.getProperty())) {
getViewer().refresh();
}
}
/*
* @see org.eclipse.jdt.internal.ui.browsing.JavaBrowsingPart#dispose()
*/
@Override
public void dispose() {
if (fMemberFilterActionGroup != null) {
fMemberFilterActionGroup.dispose();
fMemberFilterActionGroup= null;
}
if (fCategoryFilterActionGroup != null) {
fCategoryFilterActionGroup.dispose();
fCategoryFilterActionGroup= null;
}
super.dispose();
JavaPlugin.getDefault().getPreferenceStore().removePropertyChangeListener(this);
}
}