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1
11 package org.eclipse.team.ui;
12
13 import java.lang.reflect.InvocationTargetException  ;
14
15 import org.eclipse.compare.*;
16 import org.eclipse.compare.structuremergeviewer.ICompareInput;
17 import org.eclipse.core.runtime.IProgressMonitor;
18 import org.eclipse.jface.action.IToolBarManager;
19 import org.eclipse.jface.action.ToolBarManager;
20 import org.eclipse.jface.operation.IRunnableWithProgress;
21 import org.eclipse.jface.viewers.*;
22 import org.eclipse.swt.SWT;
23 import org.eclipse.swt.widgets.Composite;
24 import org.eclipse.team.internal.ui.Utils;
25 import org.eclipse.team.internal.ui.synchronize.LocalResourceTypedElement;
26 import org.eclipse.ui.PlatformUI;
27 import org.eclipse.ui.part.IPage;
28 import org.eclipse.ui.progress.IProgressService;
29
30
38 public abstract class PageCompareEditorInput extends CompareEditorInput implements IContentChangeListener {
39
40 private CompareViewerPane pagePane;
41 private ICompareInput hookedInput;
42
43
47 protected PageCompareEditorInput(CompareConfiguration configuration) {
48 super(configuration);
49 }
50
51
54 protected CompareViewerPane createStructureInputPane(Composite parent) {
55 pagePane = new CompareViewerPane(parent, SWT.BORDER | SWT.FLAT) {
56 public void selectionChanged(SelectionChangedEvent ev) {
57 ISelection selection = ev.getSelection();
58 StructuredSelection newSelection = convertSelection(selection, false);
59 SelectionChangedEvent newEv = new SelectionChangedEvent(pagePane, newSelection);
60 super.selectionChanged(newEv);
61 }
62 private StructuredSelection convertSelection(ISelection selection, boolean prepare) {
63 ICompareInput ci = asCompareInput(selection);
64 StructuredSelection newSelection;
65 if (ci != null) {
66 if (prepare)
67 prepareCompareInput(ci);
68 newSelection = new StructuredSelection(ci);
69 } else {
70 newSelection = StructuredSelection.EMPTY;
71 }
72 return newSelection;
73 }
74 public ISelection getSelection() {
75 return convertSelection(getSelectionProvider().getSelection(), false);
76 }
77 public Object getInput() {
78 return PageCompareEditorInput.this.getCompareResult();
79 }
80 public void open(OpenEvent event) {
81 ISelection selection = event.getSelection();
82 StructuredSelection newSelection = convertSelection(selection, true);
83 super.open(new OpenEvent((Viewer)event.getSource(), newSelection));
84 }
85 public void doubleClick(DoubleClickEvent event) {
86 ISelection selection = event.getSelection();
87 StructuredSelection newSelection = convertSelection(selection, true);
88 super.doubleClick(new DoubleClickEvent((Viewer)event.getSource(), newSelection));
89 }
90
91 public void setInput(Object input) {
92 super.setInput(input);
93 Composite c = getParent();
94 if (c instanceof Splitter)
95 ((Splitter)c).setVisible(this, true);
96 layout(true);
97 }
98 };
99 ToolBarManager toolBarManager = CompareViewerPane.getToolBarManager(pagePane);
100 IPage page = createPage(pagePane, toolBarManager);
101 pagePane.setContent(page.getControl());
102 if (parent instanceof Splitter)
103 ((Splitter)parent).setVisible(pagePane, false);
104 hookupListeners();
105 return pagePane;
106 }
107
108
115 protected abstract IPage createPage(CompareViewerPane parent, IToolBarManager toolBarManager);
116
117
123 protected abstract ISelectionProvider getSelectionProvider();
124
125
130 protected void setPageDescription(String title) {
131 pagePane.setText(title);
132 }
133
134
137 protected void handleDispose() {
138 super.handleDispose();
139 cleanupListeners();
140 unhookContentChangeListener();
141 }
142
143 private void hookupListeners() {
144 ISelectionProvider selectionProvider = getSelectionProvider();
145 if (selectionProvider != null)
146 selectionProvider.addSelectionChangedListener(pagePane);
147 if (selectionProvider instanceof StructuredViewer) {
148 StructuredViewer sv = (StructuredViewer) selectionProvider;
149 sv.addOpenListener(pagePane);
150 sv.addDoubleClickListener(pagePane);
151 }
152 }
153
154 private void cleanupListeners() {
155 ISelectionProvider selectionProvider = getSelectionProvider();
156 if (selectionProvider != null)
157 selectionProvider.removeSelectionChangedListener(pagePane);
158 if (selectionProvider instanceof StructuredViewer) {
159 StructuredViewer sv = (StructuredViewer) selectionProvider;
160 sv.removeOpenListener(pagePane);
161 sv.removeDoubleClickListener(pagePane);
162 }
163 }
164
165 private void hookContentChangeListener(ICompareInput node) {
166 if (hookedInput == node)
167 return;
168 unhookContentChangeListener();
169 hookedInput = node;
170 ITypedElement left = node.getLeft();
171 if(left instanceof IContentChangeNotifier) {
172 ((IContentChangeNotifier)left).addContentChangeListener(this);
173 }
174 ITypedElement right = node.getRight();
175 if(right instanceof IContentChangeNotifier) {
176 ((IContentChangeNotifier)right).addContentChangeListener(this);
177 }
178 }
179
180 private void unhookContentChangeListener() {
181 if (hookedInput != null) {
182 ITypedElement left = hookedInput.getLeft();
183 if(left instanceof IContentChangeNotifier) {
184 ((IContentChangeNotifier)left).addContentChangeListener(this);
185 }
186 ITypedElement right = hookedInput.getRight();
187 if(right instanceof IContentChangeNotifier) {
188 ((IContentChangeNotifier)right).addContentChangeListener(this);
189 }
190 }
191 }
192
193
202 protected ICompareInput asCompareInput(ISelection selection) {
203 if (selection != null && selection instanceof IStructuredSelection) {
204 IStructuredSelection ss= (IStructuredSelection) selection;
205 if (ss.size() == 1) {
206 Object o = ss.getFirstElement();
207 if(o instanceof ICompareInput) {
208 return (ICompareInput)o;
209 }
210 }
211 }
212 return null;
213 }
214
215
220 protected final void prepareCompareInput(final ICompareInput input) {
221 if (input == null)
222 return;
223 Object left = input.getLeft();
225 if (left instanceof LocalResourceTypedElement) {
226 LocalResourceTypedElement lrte = (LocalResourceTypedElement) left;
227 lrte.enableSharedDocument(false);
228 }
229 IProgressService manager = PlatformUI.getWorkbench().getProgressService();
230 try {
231 manager.busyCursorWhile(new IRunnableWithProgress() {
233 public void run(IProgressMonitor monitor) throws InvocationTargetException , InterruptedException {
234 prepareInput(input, getCompareConfiguration(), monitor);
235 hookContentChangeListener(input);
236 }
237 });
238 } catch (InvocationTargetException e) {
239 Utils.handle(e);
240 } catch (InterruptedException e) {
241 }
243 }
244
245
248 public void contentChanged(IContentChangeNotifier source) {
249 setDirty(true);
250 }
251
252
255 public boolean canRunAsJob() {
256 return true;
257 }
258
259
268 protected abstract void prepareInput(ICompareInput input, CompareConfiguration configuration, IProgressMonitor monitor) throws InvocationTargetException ;
269
270
271 }
272 |
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