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1
11 package org.eclipse.jdt.internal.debug.ui.actions;
12
13
14 import java.util.ArrayList  ;
15 import java.util.Iterator ;
16 import java.util.List ;
17
18 import org.eclipse.core.runtime.CoreException;
19 import org.eclipse.core.runtime.IAdaptable;
20 import org.eclipse.core.runtime.IProgressMonitor;
21 import org.eclipse.core.runtime.IStatus;
22 import org.eclipse.core.runtime.Status;
23 import org.eclipse.debug.core.model.IDebugElement;
24 import org.eclipse.jdt.core.IJavaElement;
25 import org.eclipse.jdt.core.IType;
26 import org.eclipse.jdt.core.search.IJavaSearchConstants;
27 import org.eclipse.jdt.core.search.SearchEngine;
28 import org.eclipse.jdt.core.search.SearchMatch;
29 import org.eclipse.jdt.core.search.SearchParticipant;
30 import org.eclipse.jdt.core.search.SearchPattern;
31 import org.eclipse.jdt.core.search.SearchRequestor;
32 import org.eclipse.jdt.debug.core.IJavaArrayType;
33 import org.eclipse.jdt.debug.core.IJavaType;
34 import org.eclipse.jdt.debug.ui.IJavaDebugUIConstants;
35 import org.eclipse.jdt.internal.debug.core.JavaDebugUtils;
36 import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
37 import org.eclipse.jdt.internal.ui.util.OpenTypeHierarchyUtil;
38 import org.eclipse.jdt.ui.JavaUI;
39 import org.eclipse.jface.action.IAction;
40 import org.eclipse.jface.viewers.IStructuredSelection;
41
42 public abstract class OpenTypeAction extends ObjectActionDelegate {
43
44
47 public void run(IAction action) {
48 IStructuredSelection selection= getCurrentSelection();
49 if (selection == null) {
50 return;
51 }
52 Iterator itr= selection.iterator();
53 try {
54 while (itr.hasNext()) {
55 Object element= itr.next();
56 Object sourceElement = resolveSourceElement(element);
57 if (sourceElement != null) {
58 openInEditor(sourceElement);
59 } else {
60 IStatus status = new Status(IStatus.INFO, IJavaDebugUIConstants.PLUGIN_ID, IJavaDebugUIConstants.INTERNAL_ERROR, ActionMessages.OpenTypeAction_0, null);
61 throw new CoreException(status);
62 }
63 }
64 } catch(CoreException e) {
65 JDIDebugUIPlugin.statusDialog(e.getStatus());
66 }
67 }
68
69 protected abstract IDebugElement getDebugElement(IAdaptable element);
70
71
78 protected abstract IJavaType getTypeToOpen(IDebugElement element) throws CoreException;
79
80
87 protected Object resolveSourceElement(Object e) throws CoreException {
88 Object source = null;
89 IAdaptable element= (IAdaptable) e;
90 IDebugElement dbgElement= getDebugElement(element);
91 if (dbgElement != null) {
92 IJavaType type = getTypeToOpen(dbgElement);
93 while (type instanceof IJavaArrayType) {
94 type = ((IJavaArrayType)type).getComponentType();
95 }
96 if (type != null) {
97 source = JavaDebugUtils.resolveType(type);
98 if (source == null) {
99 source = findTypeInWorkspace(type.getName());
102 }
103 }
104 }
105 return source;
106 }
107
108 protected void openInEditor(Object sourceElement) throws CoreException {
109 if (isHierarchy()) {
110 if (sourceElement instanceof IJavaElement) {
111 OpenTypeHierarchyUtil.open((IJavaElement)sourceElement, getWorkbenchWindow());
112 } else {
113 typeHierarchyError();
114 }
115 } else {
116 if(sourceElement instanceof IJavaElement) {
117 JavaUI.openInEditor((IJavaElement) sourceElement);
118 }
119 else {
120 showErrorMessage(ActionMessages.OpenTypeAction_2);
121 }
122 }
123 }
124
125
130 protected boolean isHierarchy() {
131 return false;
132 }
133
134
142 public static IType findTypeInWorkspace(String typeName) throws CoreException {
143 IType[] types= findTypes(typeName, null);
144 if (types.length > 0) {
145 return types[0];
146 }
147 return null;
148 }
149
150 private static IType[] findTypes(String typeName, IProgressMonitor monitor) throws CoreException {
151
152 final List results= new ArrayList ();
153
154 SearchRequestor collector= new SearchRequestor() {
155 public void acceptSearchMatch(SearchMatch match) throws CoreException {
156 Object element= match.getElement();
157 if (element instanceof IType)
158 results.add(element);
159 }
160 };
161
162 SearchEngine engine= new SearchEngine();
163 SearchPattern pattern= SearchPattern.createPattern(typeName, IJavaSearchConstants.TYPE, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EXACT_MATCH);
164 engine.search(pattern, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() }, SearchEngine.createWorkspaceScope(), collector, monitor);
165
166 return (IType[]) results.toArray(new IType[results.size()]);
167 }
168
169 protected void typeHierarchyError() {
170 showErrorMessage(ActionMessages.ObjectActionDelegate_Unable_to_display_type_hierarchy__The_selected_source_element_is_not_contained_in_the_workspace__1);
171 }
172 }
173 |
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