/
SVNReviewPresenter.java
512 lines (448 loc) · 16.9 KB
/
SVNReviewPresenter.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
/*
* SVNReviewPresenter.java
*
* Copyright (C) 2009-11 by RStudio, Inc.
*
* This program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.studio.client.workbench.views.vcs.svn.dialog;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.event.dom.client.*;
import com.google.gwt.event.logical.shared.HasAttachHandlers;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.json.client.JSONNumber;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.HasValue;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.view.client.RowCountChangeEvent;
import com.google.gwt.view.client.SelectionChangeEvent;
import com.google.inject.Inject;
import org.rstudio.core.client.Invalidation;
import org.rstudio.core.client.Invalidation.Token;
import org.rstudio.core.client.WidgetHandlerRegistration;
import org.rstudio.core.client.widget.Operation;
import org.rstudio.studio.client.application.events.EventBus;
import org.rstudio.studio.client.common.GlobalDisplay;
import org.rstudio.studio.client.common.SimpleRequestCallback;
import org.rstudio.studio.client.common.vcs.SVNServerOperations;
import org.rstudio.studio.client.common.vcs.StatusAndPath;
import org.rstudio.studio.client.server.ServerError;
import org.rstudio.studio.client.server.Void;
import org.rstudio.studio.client.workbench.model.ClientState;
import org.rstudio.studio.client.workbench.model.Session;
import org.rstudio.studio.client.workbench.model.helper.IntStateValue;
import org.rstudio.studio.client.workbench.views.files.events.FileChangeEvent;
import org.rstudio.studio.client.workbench.views.files.events.FileChangeHandler;
import org.rstudio.studio.client.workbench.views.vcs.common.ChangelistTable;
import org.rstudio.studio.client.workbench.views.vcs.common.ProcessCallback;
import org.rstudio.studio.client.workbench.views.vcs.common.diff.*;
import org.rstudio.studio.client.workbench.views.vcs.common.events.*;
import org.rstudio.studio.client.workbench.views.vcs.common.events.DiffChunkActionEvent.Action;
import org.rstudio.studio.client.workbench.views.vcs.common.events.VcsRefreshEvent.Reason;
import org.rstudio.studio.client.workbench.views.vcs.dialog.ReviewPresenter;
import org.rstudio.studio.client.workbench.views.vcs.svn.model.SVNState;
import java.util.ArrayList;
public class SVNReviewPresenter implements ReviewPresenter
{
public interface Display extends IsWidget, HasAttachHandlers
{
ArrayList<String> getSelectedPaths();
void setSelectedStatusAndPaths(ArrayList<StatusAndPath> selectedPaths);
LineTablePresenter.Display getLineTableDisplay();
ChangelistTable getChangelistTable();
HasValue<Integer> getContextLines();
HasClickHandlers getSwitchViewButton();
HasClickHandlers getRevertFilesButton();
void setFilesCommandsEnabled(boolean enabled);
HasClickHandlers getIgnoreButton();
HasClickHandlers getDiscardAllButton();
HasClickHandlers getRefreshButton();
void setData(ArrayList<ChunkOrLine> lines);
HasClickHandlers getOverrideSizeWarningButton();
void showSizeWarning(long sizeInBytes);
void hideSizeWarning();
void showContextMenu(int clientX, int clientY);
void onShow();
}
private class DiscardClickHandler implements ClickHandler, Command
{
public DiscardClickHandler()
{
}
@Override
public void onClick(ClickEvent event)
{
execute();
}
@Override
public void execute()
{
ArrayList<String> paths = view_.getSelectedPaths();
server_.svnRevert(paths,
new ProcessCallback("Revert"));
view_.getChangelistTable().moveSelectionDown();
}
}
private class ApplyPatchHandler implements DiffChunkActionHandler,
DiffLinesActionHandler
{
@Override
public void onDiffChunkAction(DiffChunkActionEvent event)
{
ArrayList<DiffChunk> chunks = new ArrayList<DiffChunk>();
chunks.add(event.getDiffChunk());
doPatch(event.getAction(), event.getDiffChunk().getLines(), chunks);
}
@Override
public void onDiffLinesAction(DiffLinesActionEvent event)
{
ArrayList<Line> lines = view_.getLineTableDisplay().getSelectedLines();
doPatch(event.getAction(), lines, activeChunks_);
}
private void doPatch(Action action,
ArrayList<Line> lines,
ArrayList<DiffChunk> chunks)
{
if (action != Action.Discard)
throw new IllegalArgumentException("Unhandled diff chunk action");
applyPatch(chunks, lines, true);
}
}
@Inject
public SVNReviewPresenter(SVNServerOperations server,
Display view,
final EventBus events,
final SVNState svnState,
final Session session,
final GlobalDisplay globalDisplay)
{
server_ = server;
view_ = view;
globalDisplay_ = globalDisplay;
svnState_ = svnState;
new WidgetHandlerRegistration(view.asWidget())
{
@Override
protected HandlerRegistration doRegister()
{
return svnState_.addVcsRefreshHandler(new VcsRefreshHandler()
{
@Override
public void onVcsRefresh(VcsRefreshEvent event)
{
if (event.getReason() == Reason.VcsOperation)
{
Scheduler.get().scheduleDeferred(new ScheduledCommand()
{
@Override
public void execute()
{
updateDiff();
initialized_ = true;
}
});
}
}
}, false);
}
};
new WidgetHandlerRegistration(view.asWidget())
{
@Override
protected HandlerRegistration doRegister()
{
return events.addHandler(FileChangeEvent.TYPE, new FileChangeHandler()
{
@Override
public void onFileChange(FileChangeEvent event)
{
ArrayList<StatusAndPath> paths = view_.getChangelistTable()
.getSelectedItems();
if (paths.size() != 1)
{
clearDiff();
return;
}
StatusAndPath vcsStatus = StatusAndPath.fromInfo(
event.getFileChange().getFile().getGitStatus());
if (paths.get(0).getRawPath().equals(vcsStatus.getRawPath()))
{
svnState.refresh(false);
}
}
});
}
};
view_.getChangelistTable().addSelectionChangeHandler(new com.google.gwt.view.client.SelectionChangeEvent.Handler()
{
@Override
public void onSelectionChange(SelectionChangeEvent event)
{
overrideSizeWarning_ = false;
view_.setFilesCommandsEnabled(view_.getSelectedPaths().size() > 0);
if (initialized_)
updateDiff();
}
});
view_.getChangelistTable().addRowCountChangeHandler(new RowCountChangeEvent.Handler()
{
@Override
public void onRowCountChange(RowCountChangeEvent event)
{
// This is necessary because during initial load, the selection
// model has its selection set before any items are loaded into
// the table (so therefore view_.getSelectedPaths().size() is always
// 0, and the files commands are not enabled until selection changes
// again). By updating the files commands' enabled state on row
// count change as well, we can make sure they get enabled.
view_.setFilesCommandsEnabled(view_.getSelectedPaths().size() > 0);
}
});
view_.getChangelistTable().addContextMenuHandler(new ContextMenuHandler()
{
@Override
public void onContextMenu(ContextMenuEvent event)
{
NativeEvent nativeEvent = event.getNativeEvent();
view_.showContextMenu(nativeEvent.getClientX(),
nativeEvent.getClientY());
}
});
view_.getRevertFilesButton().addClickHandler(new ClickHandler()
{
@Override
public void onClick(ClickEvent event)
{
final ArrayList<String> paths = view_.getSelectedPaths();
if (paths.size() == 0)
return;
String noun = paths.size() == 1 ? "file" : "files";
globalDisplay_.showYesNoMessage(
GlobalDisplay.MSG_WARNING,
"Revert Changes",
"Changes to the selected " + noun + " will be lost.\n\nAre " +
"you sure you want to continue?",
new Operation()
{
@Override
public void execute()
{
view_.getChangelistTable().selectNextUnselectedItem();
server_.svnRevert(
paths,
new ProcessCallback("Revert Changes"));
view_.getChangelistTable().focus();
}
},
false);
}
});
view_.getDiscardAllButton().addClickHandler(new ClickHandler()
{
@Override
public void onClick(ClickEvent event)
{
String which = view_.getLineTableDisplay()
.getSelectedLines()
.size() == 0
? "All "
: "The selected";
globalDisplay.showYesNoMessage(
GlobalDisplay.MSG_WARNING,
"Discard All",
which + " changes in this file will be " +
"lost.\n\nAre you sure you want to continue?",
new Operation()
{
@Override
public void execute()
{
new DiscardClickHandler().execute();
}
},
false);
}
});
view_.getRefreshButton().addClickHandler(new ClickHandler()
{
@Override
public void onClick(ClickEvent event)
{
view_.getChangelistTable().showProgress();
svnState_.refresh(true);
}
});
view_.getLineTableDisplay().addDiffChunkActionHandler(new ApplyPatchHandler());
view_.getLineTableDisplay().addDiffLineActionHandler(new ApplyPatchHandler());
new IntStateValue(MODULE_SVN, KEY_CONTEXT_LINES, ClientState.PERSISTENT,
session.getSessionInfo().getClientState())
{
@Override
protected void onInit(Integer value)
{
if (value != null)
view_.getContextLines().setValue(value);
}
@Override
protected Integer getValue()
{
return view_.getContextLines().getValue();
}
};
view_.getContextLines().addValueChangeHandler(new ValueChangeHandler<Integer>()
{
@Override
public void onValueChange(ValueChangeEvent<Integer> event)
{
updateDiff();
}
});
view_.getOverrideSizeWarningButton().addClickHandler(new ClickHandler()
{
@Override
public void onClick(ClickEvent event)
{
overrideSizeWarning_ = true;
updateDiff();
}
});
}
private void applyPatch(ArrayList<DiffChunk> chunks,
ArrayList<Line> lines,
boolean reverse)
{
chunks = new ArrayList<DiffChunk>(chunks);
if (reverse)
{
for (int i = 0; i < chunks.size(); i++)
chunks.set(i, chunks.get(i).reverse());
lines = Line.reverseLines(lines);
}
String path = view_.getChangelistTable().getSelectedPaths().get(0);
// TODO: Verify that this is not possible in SVN, and remove
if (path.indexOf(" -> ") >= 0)
path = path.substring(path.indexOf(" -> ") + " -> ".length());
UnifiedEmitter emitter = new UnifiedEmitter(path);
for (DiffChunk chunk : chunks)
emitter.addContext(chunk);
emitter.addDiffs(lines);
String patch = emitter.createPatch(false);
server_.svnApplyPatch(path, patch, new SimpleRequestCallback<Void>());
}
private void updateDiff()
{
view_.hideSizeWarning();
final ArrayList<StatusAndPath> paths = view_.getChangelistTable().getSelectedItems();
if (paths.size() != 1)
{
clearDiff();
return;
}
final StatusAndPath item = paths.get(0);
if (!item.getPath().equals(currentFilename_))
{
clearDiff();
currentFilename_ = item.getPath();
}
diffInvalidation_.invalidate();
final Token token = diffInvalidation_.getInvalidationToken();
server_.svnDiffFile(
item.getPath(),
view_.getContextLines().getValue(),
overrideSizeWarning_,
new SimpleRequestCallback<String>("Diff Error")
{
@Override
public void onResponseReceived(String response)
{
if (token.isInvalid())
return;
// Use lastResponse_ to prevent unnecessary flicker
if (response.equals(currentResponse_))
return;
currentResponse_ = response;
UnifiedParser parser = new UnifiedParser(response);
parser.nextFilePair();
ArrayList<ChunkOrLine> allLines = new ArrayList<ChunkOrLine>();
activeChunks_.clear();
for (DiffChunk chunk;
null != (chunk = parser.nextChunk());)
{
activeChunks_.add(chunk);
allLines.add(new ChunkOrLine(chunk));
for (Line line : chunk.getLines())
allLines.add(new ChunkOrLine(line));
}
view_.getLineTableDisplay().setShowActions(
item.isFineGrainedActionable());
view_.setData(allLines);
}
@Override
public void onError(ServerError error)
{
JSONNumber size = error.getClientInfo().isNumber();
if (size != null)
view_.showSizeWarning((long) size.doubleValue());
else
super.onError(error);
}
});
}
private void clearDiff()
{
currentResponse_ = null;
currentFilename_ = null;
view_.getLineTableDisplay().clear();
}
@Override
public Widget asWidget()
{
return view_.asWidget();
}
@Override
public HandlerRegistration addSwitchViewHandler(
final SwitchViewEvent.Handler h)
{
return view_.getSwitchViewButton().addClickHandler(new ClickHandler()
{
@Override
public void onClick(ClickEvent event)
{
h.onSwitchView(new SwitchViewEvent());
}
});
}
@Override
public void setSelectedPaths(ArrayList<StatusAndPath> selectedPaths)
{
view_.setSelectedStatusAndPaths(selectedPaths);
}
public void onShow()
{
// Ensure that we're fresh
svnState_.refresh();
view_.onShow();
}
private final Invalidation diffInvalidation_ = new Invalidation();
private final SVNServerOperations server_;
private final Display view_;
private final GlobalDisplay globalDisplay_;
private ArrayList<DiffChunk> activeChunks_ = new ArrayList<DiffChunk>();
private String currentResponse_;
private String currentFilename_;
private SVNState svnState_;
private boolean initialized_;
private static final String MODULE_SVN = "vcs_svn";
private static final String KEY_CONTEXT_LINES = "context_lines";
private boolean overrideSizeWarning_ = false;
}