xref: /haiku/src/apps/text_search/GrepWindow.cpp (revision 8c78892580f132d10e624aef96f835df8d94bf19)
1 /*
2  * Copyright (c) 1998-2007 Matthijs Hollemans
3  * All rights reserved. Distributed under the terms of the MIT License.
4  */
5 #include "GrepWindow.h"
6 
7 #include <ctype.h>
8 #include <errno.h>
9 #include <new>
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include <unistd.h>
14 
15 #include <Application.h>
16 #include <AppFileInfo.h>
17 #include <Alert.h>
18 #include <Clipboard.h>
19 #include <LayoutBuilder.h>
20 #include <MessageRunner.h>
21 #include <MimeType.h>
22 #include <Path.h>
23 #include <PathMonitor.h>
24 #include <Roster.h>
25 #include <SpaceLayoutItem.h>
26 #include <String.h>
27 #include <UTF8.h>
28 
29 #include "ChangesIterator.h"
30 #include "GlobalDefs.h"
31 #include "Grepper.h"
32 #include "InitialIterator.h"
33 
34 #undef B_TRANSLATION_CONTEXT
35 #define B_TRANSLATION_CONTEXT "GrepWindow"
36 
37 
38 const char* kAppName = B_TRANSLATE_MARK_SYSTEM_NAME("TextSearch");
39 
40 
41 using std::nothrow;
42 
43 static const bigtime_t kChangesPulseInterval = 150000;
44 
45 #define TRACE_NODE_MONITORING
46 #ifdef TRACE_NODE_MONITORING
47 # define TRACE_NM(x...) printf(x)
48 #else
49 # define TRACE_NM(x...)
50 #endif
51 
52 //#define TRACE_FUNCTIONS
53 #ifdef TRACE_FUNCTIONS
54 	class FunctionTracer {
55 	public:
56 		FunctionTracer(const char* functionName)
57 			: fName(functionName)
58 		{
59 			printf("%s - enter\n", fName.String());
60 		}
61 		~FunctionTracer()
62 		{
63 			printf("%s - exit\n", fName.String());
64 		}
65 	private:
66 		BString	fName;
67 	};
68 # define CALLED()	FunctionTracer functionTracer(__PRETTY_FUNCTION__)
69 #else
70 # define CALLED()
71 #endif // TRACE_FUNCTIONS
72 
73 
74 GrepWindow::GrepWindow(BMessage* message)
75 	: BWindow(BRect(0, 0, 525, 430), NULL, B_DOCUMENT_WINDOW,
76 		B_AUTO_UPDATE_SIZE_LIMITS),
77 	fSearchText(NULL),
78 	fSearchResults(NULL),
79 	fMenuBar(NULL),
80 	fFileMenu(NULL),
81 	fNew(NULL),
82 	fOpen(NULL),
83 	fClose(NULL),
84 	fQuit(NULL),
85 	fActionMenu(NULL),
86 	fSelectAll(NULL),
87 	fSearch(NULL),
88 	fTrimSelection(NULL),
89 	fCopyText(NULL),
90 	fSelectInTracker(NULL),
91 	fOpenSelection(NULL),
92 	fPreferencesMenu(NULL),
93 	fRecurseLinks(NULL),
94 	fRecurseDirs(NULL),
95 	fSkipDotDirs(NULL),
96 	fCaseSensitive(NULL),
97 	fRegularExpression(NULL),
98 	fTextOnly(NULL),
99 	fInvokeEditor(NULL),
100 	fHistoryMenu(NULL),
101 	fEncodingMenu(NULL),
102 	fUTF8(NULL),
103 	fShiftJIS(NULL),
104 	fEUC(NULL),
105 	fJIS(NULL),
106 
107 	fShowLinesCheckbox(NULL),
108 	fButton(NULL),
109 
110 	fGrepper(NULL),
111 	fOldPattern(""),
112 	fModel(new (nothrow) Model()),
113 	fLastNodeMonitorEvent(system_time()),
114 	fChangesIterator(NULL),
115 	fChangesPulse(NULL),
116 
117 	fFilePanel(NULL)
118 {
119 	if (fModel == NULL)
120 		return;
121 
122 	entry_ref directory;
123 	_InitRefsReceived(&directory, message);
124 
125 	fModel->fDirectory = directory;
126 	fModel->fSelectedFiles = *message;
127 
128 	_SetWindowTitle();
129 	_CreateMenus();
130 	_UpdateMenus();
131 	_CreateViews();
132 	_LayoutViews();
133 	_LoadPrefs();
134 	_TileIfMultipleWindows();
135 
136 	Show();
137 }
138 
139 
140 GrepWindow::~GrepWindow()
141 {
142 	delete fGrepper;
143 	delete fModel;
144 }
145 
146 
147 void GrepWindow::FrameResized(float width, float height)
148 {
149 	BWindow::FrameResized(width, height);
150 	fModel->fFrame = Frame();
151 	_SavePrefs();
152 }
153 
154 
155 void GrepWindow::FrameMoved(BPoint origin)
156 {
157 	BWindow::FrameMoved(origin);
158 	fModel->fFrame = Frame();
159 	_SavePrefs();
160 }
161 
162 
163 void GrepWindow::MenusBeginning()
164 {
165 	fModel->FillHistoryMenu(fHistoryMenu);
166 	BWindow::MenusBeginning();
167 }
168 
169 
170 void GrepWindow::MenusEnded()
171 {
172 	for (int32 t = fHistoryMenu->CountItems(); t > 0; --t)
173 		delete fHistoryMenu->RemoveItem(t - 1);
174 
175 	BWindow::MenusEnded();
176 }
177 
178 
179 void GrepWindow::MessageReceived(BMessage* message)
180 {
181 	switch (message->what) {
182 		case MSG_NEW_WINDOW:
183 			_OnNewWindow();
184 			break;
185 
186 		case B_SIMPLE_DATA:
187 			_OnFileDrop(message);
188 			break;
189 
190 		case MSG_OPEN_PANEL:
191 			_OnOpenPanel();
192 			break;
193 
194 		case MSG_REFS_RECEIVED:
195 			_OnRefsReceived(message);
196 			break;
197 
198 		case MSG_SET_TARGET_TO_PARENT:
199 			_OnSetTargetToParent();
200 			break;
201 
202 		case B_CANCEL:
203 			_OnOpenPanelCancel();
204 			break;
205 
206 		case MSG_RECURSE_LINKS:
207 			_OnRecurseLinks();
208 			break;
209 
210 		case MSG_RECURSE_DIRS:
211 			_OnRecurseDirs();
212 			break;
213 
214 		case MSG_SKIP_DOT_DIRS:
215 			_OnSkipDotDirs();
216 			break;
217 
218 		case MSG_CASE_SENSITIVE:
219 			_OnCaseSensitive();
220 			break;
221 
222 		case MSG_REGULAR_EXPRESSION:
223 			_OnRegularExpression();
224 			break;
225 
226 		case MSG_TEXT_ONLY:
227 			_OnTextOnly();
228 			break;
229 
230 		case MSG_INVOKE_EDITOR:
231 			_OnInvokeEditor();
232 			break;
233 
234 		case MSG_SEARCH_TEXT:
235 			_OnSearchText();
236 			break;
237 
238 		case MSG_SELECT_HISTORY:
239 			_OnHistoryItem(message);
240 			break;
241 
242 		case MSG_START_CANCEL:
243 			_OnStartCancel();
244 			break;
245 
246 		case MSG_SEARCH_FINISHED:
247 			_OnSearchFinished();
248 			break;
249 
250 		case MSG_START_NODE_MONITORING:
251 			_StartNodeMonitoring();
252 			break;
253 
254 		case B_PATH_MONITOR:
255 			_OnNodeMonitorEvent(message);
256 			break;
257 
258 		case MSG_NODE_MONITOR_PULSE:
259 			_OnNodeMonitorPulse();
260 			break;
261 
262 		case MSG_REPORT_FILE_NAME:
263 			_OnReportFileName(message);
264 			break;
265 
266 		case MSG_REPORT_RESULT:
267 			_OnReportResult(message);
268 			break;
269 
270 		case MSG_REPORT_ERROR:
271 			_OnReportError(message);
272 			break;
273 
274 		case MSG_SELECT_ALL:
275 			_OnSelectAll(message);
276 			break;
277 
278 		case MSG_TRIM_SELECTION:
279 			_OnTrimSelection();
280 			break;
281 
282 		case MSG_COPY_TEXT:
283 			_OnCopyText();
284 			break;
285 
286 		case MSG_SELECT_IN_TRACKER:
287 			_OnSelectInTracker();
288 			break;
289 
290 		case MSG_CHECKBOX_SHOW_LINES:
291 			_OnCheckboxShowLines();
292 			break;
293 
294 		case MSG_OPEN_SELECTION:
295 			// fall through
296 		case MSG_INVOKE_ITEM:
297 			_OnInvokeItem();
298 			break;
299 
300 		case MSG_QUIT_NOW:
301 			_OnQuitNow();
302 			break;
303 
304 		case 'utf8':
305 			fModel->fEncoding = 0;
306 			break;
307 
308 		case B_SJIS_CONVERSION:
309 			fModel->fEncoding = B_SJIS_CONVERSION;
310 			break;
311 
312 		case B_EUC_CONVERSION:
313 			fModel->fEncoding = B_EUC_CONVERSION;
314 			break;
315 
316 		case B_JIS_CONVERSION:
317 			fModel->fEncoding = B_JIS_CONVERSION;
318 			break;
319 
320 		default:
321 			BWindow::MessageReceived(message);
322 			break;
323 	}
324 }
325 
326 
327 void
328 GrepWindow::Quit()
329 {
330 	CALLED();
331 
332 	_StopNodeMonitoring();
333 	_SavePrefs();
334 
335 	// TODO: stippi: Looks like this could be done
336 	// by maintaining a counter in GrepApp with the number of open
337 	// grep windows... and just quit when it goes zero
338 	if (be_app->Lock()) {
339 		be_app->PostMessage(MSG_TRY_QUIT);
340 		be_app->Unlock();
341 		BWindow::Quit();
342 	}
343 }
344 
345 
346 // #pragma mark -
347 
348 
349 void
350 GrepWindow::_InitRefsReceived(entry_ref* directory, BMessage* message)
351 {
352 	// HACK-HACK-HACK:
353 	// If the user selected a single folder and invoked TextSearch on it,
354 	// but recurse directories is switched off, TextSearch would do nothing.
355 	// In that special case, we'd like it to recurse into that folder (but
356 	// not go any deeper after that).
357 
358 	type_code code;
359 	int32 count;
360 	message->GetInfo("refs", &code, &count);
361 
362 	if (count == 0) {
363 		if (message->FindRef("dir_ref", 0, directory) == B_OK)
364 			message->MakeEmpty();
365 	}
366 
367 	if (count == 1) {
368 		entry_ref ref;
369 		if (message->FindRef("refs", 0, &ref) == B_OK) {
370 			BEntry entry(&ref, true);
371 			if (entry.IsDirectory()) {
372 				// ok, special case, we use this folder as base directory
373 				// and pretend nothing had been selected:
374 				*directory = ref;
375 				message->MakeEmpty();
376 			}
377 		}
378 	}
379 }
380 
381 
382 void
383 GrepWindow::_SetWindowTitle()
384 {
385 	BEntry entry(&fModel->fDirectory, true);
386 	BString title;
387 	if (entry.InitCheck() == B_OK) {
388 		BPath path;
389 		if (entry.GetPath(&path) == B_OK) {
390 			if (fOldPattern.Length()) {
391 				title = B_TRANSLATE("%appname% : %path% : %searchtext%");
392 				title.ReplaceAll("%searchtext%", fOldPattern.String());
393 			} else
394 				title = B_TRANSLATE("%appname% : %path%");
395 
396 			title.ReplaceAll("%appname%", B_TRANSLATE_NOCOLLECT(kAppName));
397 			title.ReplaceAll("%path%", path.Path());
398 		}
399 	}
400 
401 	if (!title.Length())
402 		title = B_TRANSLATE_NOCOLLECT(kAppName);
403 
404 	SetTitle(title.String());
405 }
406 
407 
408 void
409 GrepWindow::_CreateMenus()
410 {
411 	fMenuBar = new BMenuBar("menubar");
412 
413 	fFileMenu = new BMenu(B_TRANSLATE("File"));
414 	fActionMenu = new BMenu(B_TRANSLATE("Actions"));
415 	fPreferencesMenu = new BMenu(B_TRANSLATE("Settings"));
416 	fHistoryMenu = new BMenu(B_TRANSLATE("History"));
417 	fEncodingMenu = new BMenu(B_TRANSLATE("Encoding"));
418 
419 	fNew = new BMenuItem(
420 		B_TRANSLATE("New window"), new BMessage(MSG_NEW_WINDOW), 'N');
421 
422 	fOpen = new BMenuItem(
423 		B_TRANSLATE("Set target" B_UTF8_ELLIPSIS), new BMessage(MSG_OPEN_PANEL), 'F');
424 
425 	fSetTargetToParent = new BMenuItem(
426 		B_TRANSLATE("Set target to parent folder"),
427 		new BMessage(MSG_SET_TARGET_TO_PARENT), B_UP_ARROW);
428 
429 	fClose = new BMenuItem(
430 		B_TRANSLATE("Close"), new BMessage(B_QUIT_REQUESTED), 'W');
431 
432 	fQuit = new BMenuItem(
433 		B_TRANSLATE("Quit"), new BMessage(MSG_QUIT_NOW), 'Q');
434 
435 	fSearch = new BMenuItem(
436 		B_TRANSLATE("Search"), new BMessage(MSG_START_CANCEL), 'S');
437 
438 	fSelectAll = new BMenuItem(
439 		B_TRANSLATE("Select all"), new BMessage(MSG_SELECT_ALL),
440 		'A', B_SHIFT_KEY);
441 
442 	fTrimSelection = new BMenuItem(
443 		B_TRANSLATE("Trim to selection"), new BMessage(MSG_TRIM_SELECTION), 'T');
444 
445 	fOpenSelection = new BMenuItem(
446 		B_TRANSLATE("Open selection"), new BMessage(MSG_OPEN_SELECTION), 'O');
447 
448 	fSelectInTracker = new BMenuItem(
449 		B_TRANSLATE("Show files in Tracker"),
450 			new BMessage(MSG_SELECT_IN_TRACKER), 'K');
451 
452 	fCopyText = new BMenuItem(
453 		B_TRANSLATE("Copy text to clipboard"), new BMessage(MSG_COPY_TEXT), 'B');
454 
455 	fRecurseLinks = new BMenuItem(
456 		B_TRANSLATE("Follow symbolic links"), new BMessage(MSG_RECURSE_LINKS));
457 
458 	fRecurseDirs = new BMenuItem(
459 		B_TRANSLATE("Look in sub-folders"), new BMessage(MSG_RECURSE_DIRS));
460 
461 	fSkipDotDirs = new BMenuItem(
462 		B_TRANSLATE("Skip folders starting with a dot"),
463 			new BMessage(MSG_SKIP_DOT_DIRS));
464 
465 	fCaseSensitive = new BMenuItem(
466 		B_TRANSLATE("Case-sensitive"), new BMessage(MSG_CASE_SENSITIVE));
467 
468 	fRegularExpression = new BMenuItem(
469 		B_TRANSLATE("Regular expression"), new BMessage(MSG_REGULAR_EXPRESSION));
470 
471 	fTextOnly = new BMenuItem(
472 		B_TRANSLATE("Text files only"), new BMessage(MSG_TEXT_ONLY));
473 
474 	fInvokeEditor = new BMenuItem(
475 		B_TRANSLATE("Open files in code editor"), new BMessage(MSG_INVOKE_EDITOR));
476 
477 	fUTF8 = new BMenuItem("UTF8", new BMessage('utf8'));
478 	fShiftJIS = new BMenuItem("ShiftJIS", new BMessage(B_SJIS_CONVERSION));
479 	fEUC = new BMenuItem("EUC", new BMessage(B_EUC_CONVERSION));
480 	fJIS = new BMenuItem("JIS", new BMessage(B_JIS_CONVERSION));
481 
482 	fFileMenu->AddItem(fNew);
483 	fFileMenu->AddSeparatorItem();
484 	fFileMenu->AddItem(fOpen);
485 	fFileMenu->AddItem(fSetTargetToParent);
486 	fFileMenu->AddItem(fClose);
487 	fFileMenu->AddSeparatorItem();
488 	fFileMenu->AddItem(fQuit);
489 
490 	fActionMenu->AddItem(fSearch);
491 	fActionMenu->AddSeparatorItem();
492 	fActionMenu->AddItem(fSelectAll);
493 	fActionMenu->AddItem(fTrimSelection);
494 	fActionMenu->AddSeparatorItem();
495 	fActionMenu->AddItem(fOpenSelection);
496 	fActionMenu->AddItem(fSelectInTracker);
497 	fActionMenu->AddItem(fCopyText);
498 
499 	fPreferencesMenu->AddItem(fRecurseLinks);
500 	fPreferencesMenu->AddItem(fRecurseDirs);
501 	fPreferencesMenu->AddItem(fSkipDotDirs);
502 	fPreferencesMenu->AddItem(fCaseSensitive);
503 	fPreferencesMenu->AddItem(fRegularExpression);
504 	fPreferencesMenu->AddItem(fTextOnly);
505 	fPreferencesMenu->AddItem(fInvokeEditor);
506 
507 	fEncodingMenu->AddItem(fUTF8);
508 	fEncodingMenu->AddItem(fShiftJIS);
509 	fEncodingMenu->AddItem(fEUC);
510 	fEncodingMenu->AddItem(fJIS);
511 
512 //	fEncodingMenu->SetLabelFromMarked(true);
513 		// Do we really want this ?
514 	fEncodingMenu->SetRadioMode(true);
515 	fEncodingMenu->ItemAt(0)->SetMarked(true);
516 
517 	fMenuBar->AddItem(fFileMenu);
518 	fMenuBar->AddItem(fActionMenu);
519 	fMenuBar->AddItem(fPreferencesMenu);
520 	fMenuBar->AddItem(fHistoryMenu);
521 	fMenuBar->AddItem(fEncodingMenu);
522 
523 	fSearch->SetEnabled(false);
524 }
525 
526 
527 void
528 GrepWindow::_UpdateMenus()
529 {
530 	bool targetIsSingleDirectory =
531 		BEntry(&(fModel->fDirectory)).InitCheck() == B_OK;
532 	fSetTargetToParent->SetEnabled(targetIsSingleDirectory);
533 }
534 
535 
536 void
537 GrepWindow::_CreateViews()
538 {
539 	// The search pattern entry field does not send a message when
540 	// <Enter> is pressed, because the "Search/Cancel" button already
541 	// does this and we don't want to send the same message twice.
542 
543 	fSearchText = new BTextControl(
544 		"SearchText", NULL, NULL, NULL,
545 		B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE | B_NAVIGABLE);
546 
547 	fSearchText->TextView()->SetMaxBytes(1000);
548 	fSearchText->SetModificationMessage(new BMessage(MSG_SEARCH_TEXT));
549 
550 	fButton = new BButton(
551 		"Button", B_TRANSLATE("Search"),
552 		new BMessage(MSG_START_CANCEL));
553 	fButton->MakeDefault(true);
554 	fButton->SetEnabled(false);
555 
556 	fShowLinesCheckbox = new BCheckBox(
557 		"ShowLines", B_TRANSLATE("Show lines"),
558 		new BMessage(MSG_CHECKBOX_SHOW_LINES));
559 	fShowLinesCheckbox->SetValue(B_CONTROL_ON);
560 
561 	fSearchResults = new GrepListView();
562 	fSearchResults->SetInvocationMessage(new BMessage(MSG_INVOKE_ITEM));
563 }
564 
565 
566 void
567 GrepWindow::_LayoutViews()
568 {
569 	BScrollView* scroller = new BScrollView(
570 		"ScrollSearchResults", fSearchResults,
571 		B_FULL_UPDATE_ON_RESIZE, true, true);
572 
573 	BLayoutBuilder::Group<>(this, B_VERTICAL, 0)
574 		.SetInsets(0, 0, -1, -1)
575 		.Add(fMenuBar)
576 		.AddGrid(B_USE_HALF_ITEM_INSETS)
577 			.SetInsets(B_USE_WINDOW_SPACING, B_USE_WINDOW_SPACING,
578 				B_USE_WINDOW_SPACING, B_USE_DEFAULT_SPACING)
579 			.Add(fSearchText, 0, 0, 3)
580 			.Add(fShowLinesCheckbox, 0, 1)
581 			.Add(BSpaceLayoutItem::CreateGlue(), 1, 1)
582 			.Add(fButton, 2, 1)
583 		.End()
584 		.AddGroup(B_VERTICAL, 0)
585 			.SetInsets(-2, 0, -1, -1)
586 			.Add(scroller)
587 		.End()
588 	.End();
589 
590 	fSearchText->MakeFocus(true);
591 
592 	SetKeyMenuBar(fMenuBar);
593 }
594 
595 
596 void
597 GrepWindow::_TileIfMultipleWindows()
598 {
599 	if (be_app->Lock()) {
600 		int32 windowCount = be_app->CountWindows();
601 		be_app->Unlock();
602 
603 		if (windowCount > 1)
604 			MoveBy(20, 20);
605 	}
606 
607 	BScreen screen(this);
608 	BRect screenFrame = screen.Frame();
609 	BRect windowFrame = Frame();
610 
611 	if (windowFrame.left > screenFrame.right
612 		|| windowFrame.top > screenFrame.bottom
613 		|| windowFrame.right < screenFrame.left
614 		|| windowFrame.bottom < screenFrame.top)
615 		MoveTo(50, 50);
616 }
617 
618 
619 // #pragma mark -
620 
621 
622 void
623 GrepWindow::_LoadPrefs()
624 {
625 	Lock();
626 
627 	fModel->LoadPrefs();
628 
629 	fRecurseDirs->SetMarked(fModel->fRecurseDirs);
630 	fRecurseLinks->SetMarked(fModel->fRecurseLinks);
631 	fSkipDotDirs->SetMarked(fModel->fSkipDotDirs);
632 	fCaseSensitive->SetMarked(fModel->fCaseSensitive);
633 	fRegularExpression->SetMarked(fModel->fRegularExpression);
634 	fTextOnly->SetMarked(fModel->fTextOnly);
635 	fInvokeEditor->SetMarked(fModel->fInvokeEditor);
636 
637 	fShowLinesCheckbox->SetValue(fModel->fShowLines);
638 
639 	switch (fModel->fEncoding) {
640 		case 0:
641 			fUTF8->SetMarked(true);
642 			break;
643 		case B_SJIS_CONVERSION:
644 			fShiftJIS->SetMarked(true);
645 			break;
646 		case B_EUC_CONVERSION:
647 			fEUC->SetMarked(true);
648 			break;
649 		case B_JIS_CONVERSION:
650 			fJIS->SetMarked(true);
651 			break;
652 		default:
653 			printf("Woops. Bad fModel->fEncoding value.\n");
654 			break;
655 	}
656 
657 	MoveTo(fModel->fFrame.left, fModel->fFrame.top);
658 	ResizeTo(fModel->fFrame.Width(), fModel->fFrame.Height());
659 
660 	Unlock();
661 }
662 
663 
664 void
665 GrepWindow::_SavePrefs()
666 {
667 	fModel->SavePrefs();
668 }
669 
670 
671 void
672 GrepWindow::_StartNodeMonitoring()
673 {
674 	CALLED();
675 
676 	_StopNodeMonitoring();
677 
678 	BMessenger messenger(this);
679 	uint32 fileFlags = B_WATCH_NAME | B_WATCH_STAT | B_WATCH_ATTR;
680 
681 
682 	// watch the top level folder only, rest should be done through filtering
683 	// the node monitor notifications
684 	BPath path(&fModel->fDirectory);
685 	if (path.InitCheck() == B_OK) {
686 		TRACE_NM("start monitoring root folder: %s\n", path.Path());
687 		BPrivate::BPathMonitor::StartWatching(path.Path(),
688 			fileFlags | B_WATCH_RECURSIVELY | B_WATCH_FILES_ONLY, messenger);
689 	}
690 
691 	if (fChangesPulse == NULL) {
692 		BMessage message(MSG_NODE_MONITOR_PULSE);
693 		fChangesPulse = new BMessageRunner(BMessenger(this), &message,
694 			kChangesPulseInterval);
695 	}
696 }
697 
698 
699 void
700 GrepWindow::_StopNodeMonitoring()
701 {
702 	if (fChangesPulse == NULL)
703 		return;
704 
705 	CALLED();
706 
707 	BPrivate::BPathMonitor::StopWatching(BMessenger(this));
708 	delete fChangesIterator;
709 	fChangesIterator = NULL;
710 	delete fChangesPulse;
711 	fChangesPulse = NULL;
712 }
713 
714 
715 // #pragma mark - events
716 
717 
718 void
719 GrepWindow::_OnStartCancel()
720 {
721 	CALLED();
722 
723 	_StopNodeMonitoring();
724 
725 	if (fModel->fState == STATE_IDLE) {
726 		fSearchResults->MakeEmpty();
727 
728 		if (fSearchText->TextView()->TextLength() == 0)
729 			return;
730 
731 		fModel->fState = STATE_SEARCH;
732 
733 		fModel->AddToHistory(fSearchText->Text());
734 
735 		// From now on, we don't want to be notified when the
736 		// search pattern changes, because the control will be
737 		// displaying the names of the files we are grepping.
738 
739 		fSearchText->SetModificationMessage(NULL);
740 
741 		fFileMenu->SetEnabled(false);
742 		fActionMenu->SetEnabled(false);
743 		fPreferencesMenu->SetEnabled(false);
744 		fHistoryMenu->SetEnabled(false);
745 		fEncodingMenu->SetEnabled(false);
746 
747 		fSearchText->SetEnabled(false);
748 
749 		fButton->MakeFocus(true);
750 		fButton->SetLabel(B_TRANSLATE("Cancel"));
751 
752 		fSearch->SetEnabled(false);
753 
754 		// We need to remember the search pattern, because during
755 		// the grepping, the text control's text will be replaced
756 		// by the name of the file that's currently being grepped.
757 		// When the grepping finishes, we need to restore the old
758 		// search pattern.
759 
760 		fOldPattern = fSearchText->Text();
761 
762 		_SetWindowTitle();
763 
764 		FileIterator* iterator = new (nothrow) InitialIterator(fModel);
765 		fGrepper = new (nothrow) Grepper(fOldPattern.String(), fModel,
766 			this, iterator);
767 		if (fGrepper != NULL && fGrepper->IsValid())
768 			fGrepper->Start();
769 		else {
770 			// roll back in case of problems
771 			if (fGrepper == NULL)
772 				delete iterator;
773 			else {
774 				// Grepper owns iterator
775 				delete fGrepper;
776 				fGrepper = NULL;
777 			}
778 			fModel->fState = STATE_IDLE;
779 			// TODO: better notification to user
780 			fprintf(stderr, "Out of memory.\n");
781 		}
782 	} else if (fModel->fState == STATE_SEARCH) {
783 		fModel->fState = STATE_CANCEL;
784 		fGrepper->Cancel();
785 	}
786 }
787 
788 
789 void
790 GrepWindow::_OnSearchFinished()
791 {
792 	fModel->fState = STATE_IDLE;
793 
794 	delete fGrepper;
795 	fGrepper = NULL;
796 
797 	fFileMenu->SetEnabled(true);
798 	fActionMenu->SetEnabled(true);
799 	fPreferencesMenu->SetEnabled(true);
800 	fHistoryMenu->SetEnabled(true);
801 	fEncodingMenu->SetEnabled(true);
802 
803 	fButton->SetLabel(B_TRANSLATE("Search"));
804 
805 	fButton->SetEnabled(true);
806 	fSearch->SetEnabled(true);
807 
808 	fSearchText->SetEnabled(true);
809 	fSearchText->MakeFocus(true);
810 	fSearchText->SetText(fOldPattern.String());
811 	fSearchText->TextView()->SelectAll();
812 	fSearchText->SetModificationMessage(new BMessage(MSG_SEARCH_TEXT));
813 
814 	PostMessage(MSG_START_NODE_MONITORING);
815 }
816 
817 
818 void
819 GrepWindow::_OnNodeMonitorEvent(BMessage* message)
820 {
821 	int32 opCode;
822 	if (message->FindInt32("opcode", &opCode) != B_OK)
823 		return;
824 
825 	if (fChangesIterator == NULL) {
826 		fChangesIterator = new (nothrow) ChangesIterator(fModel);
827 		if (fChangesIterator == NULL || !fChangesIterator->IsValid()) {
828 			delete fChangesIterator;
829 			fChangesIterator = NULL;
830 		}
831 	}
832 
833 	switch (opCode) {
834 		case B_ENTRY_CREATED:
835 		case B_ENTRY_REMOVED:
836 		{
837 			TRACE_NM("%s\n", opCode == B_ENTRY_CREATED ? "B_ENTRY_CREATED"
838 				: "B_ENTRY_REMOVED");
839 			BString path;
840 			if (message->FindString("path", &path) == B_OK) {
841 				if (opCode == B_ENTRY_CREATED) {
842 					if (fChangesIterator != NULL)
843 						fChangesIterator->EntryAdded(path.String());
844 				} else {
845 					// in order to remove temporary files
846 					if (fChangesIterator != NULL)
847 						fChangesIterator->EntryRemoved(path.String());
848 					// remove from the list view already
849 					BEntry entry(path.String());
850 					entry_ref ref;
851 					if (entry.GetRef(&ref) == B_OK)
852 						fSearchResults->RemoveResults(ref, true);
853 				}
854 			} else {
855 				#ifdef TRACE_NODE_MONITORING
856 					printf("incompatible message:\n");
857 					message->PrintToStream();
858 				#endif
859 			}
860 			TRACE_NM("path: %s\n", path.String());
861 			break;
862 		}
863 		case B_ENTRY_MOVED:
864 		{
865 			TRACE_NM("B_ENTRY_MOVED\n");
866 
867 			BString path;
868 			if (message->FindString("path", &path) != B_OK) {
869 				#ifdef TRACE_NODE_MONITORING
870 					printf("incompatible message:\n");
871 					message->PrintToStream();
872 				#endif
873 				break;
874 			}
875 
876 			bool added;
877 			if (message->FindBool("added", &added) != B_OK)
878 				added = false;
879 			bool removed;
880 			if (message->FindBool("removed", &removed) != B_OK)
881 				removed = false;
882 
883 			if (added) {
884 				// new files
885 			} else if (removed) {
886 				// remove files
887 			} else {
888 				// files changed location, but are still within the search
889 				// path!
890 				BEntry entry(path.String());
891 				entry_ref ref;
892 				if (entry.GetRef(&ref) == B_OK) {
893 					int32 index;
894 					ResultItem* item = fSearchResults->FindItem(ref, &index);
895 					if (item != NULL) {
896 						item->SetText(path.String());
897 						// take care of invalidation, the index is currently
898 						// the full list index, but needs to be the visible
899 						// items index for this
900 						index = fSearchResults->IndexOf(item);
901 						fSearchResults->InvalidateItem(index);
902 					}
903 				}
904 			}
905 			break;
906 		}
907 		case B_STAT_CHANGED:
908 		case B_ATTR_CHANGED:
909 		{
910 			TRACE_NM("%s\n", opCode == B_STAT_CHANGED ? "B_STAT_CHANGED"
911 				: "B_ATTR_CHANGED");
912 			// For directly watched files, the path will include the
913 			// name. When the event occurs for a file in a watched directory,
914 			// the message will have an extra name field for the respective
915 			// file.
916 			BString path;
917 			if (message->FindString("path", &path) == B_OK) {
918 				if (fChangesIterator != NULL)
919 					fChangesIterator->EntryChanged(path.String());
920 			} else {
921 				#ifdef TRACE_NODE_MONITORING
922 					printf("incompatible message:\n");
923 					message->PrintToStream();
924 				#endif
925 			}
926 			TRACE_NM("path: %s\n", path.String());
927 // message->PrintToStream();
928 			break;
929 		}
930 
931 		default:
932 			TRACE_NM("unkown op code\n");
933 			break;
934 	}
935 
936 	fLastNodeMonitorEvent = system_time();
937 }
938 
939 
940 void
941 GrepWindow::_OnNodeMonitorPulse()
942 {
943 	if (fChangesIterator == NULL || fChangesIterator->IsEmpty())
944 		return;
945 
946 	if (system_time() - fLastNodeMonitorEvent < kChangesPulseInterval) {
947 		// wait for things to settle down before running the search for changes
948 		return;
949 	}
950 
951 	if (fModel->fState != STATE_IDLE) {
952 		// An update or search is still in progress. New node monitor messages
953 		// may arrive while an update is still running. They should not arrive
954 		// during a regular search, but we want to be prepared for that anyways
955 		// and check != STATE_IDLE.
956 		return;
957 	}
958 
959 	fOldPattern = fSearchText->Text();
960 
961 #ifdef TRACE_NODE_MONITORING
962 	fChangesIterator->PrintToStream();
963 #endif
964 
965 	fGrepper = new (nothrow) Grepper(fOldPattern.String(), fModel,
966 		this, fChangesIterator);
967 	if (fGrepper != NULL && fGrepper->IsValid()) {
968 		fGrepper->Start();
969 		fChangesIterator = NULL;
970 		fModel->fState = STATE_UPDATE;
971 	} else {
972 		// roll back in case of problems
973 		if (fGrepper == NULL)
974 			delete fChangesIterator;
975 		else {
976 			// Grepper owns iterator
977 			delete fGrepper;
978 			fGrepper = NULL;
979 		}
980 		fprintf(stderr, "Out of memory.\n");
981 	}
982 }
983 
984 
985 void
986 GrepWindow::_OnReportFileName(BMessage* message)
987 {
988 	if (fModel->fState != STATE_UPDATE) {
989 		BString name = message->FindString("filename");
990 		fSearchText->TruncateString(&name, B_TRUNCATE_MIDDLE,
991 			fSearchText->Bounds().Width() - 10);
992 
993 		fSearchText->SetText(name);
994 	}
995 }
996 
997 
998 void
999 GrepWindow::_OnReportResult(BMessage* message)
1000 {
1001 	CALLED();
1002 	entry_ref ref;
1003 	if (message->FindRef("ref", &ref) != B_OK)
1004 		return;
1005 
1006 	type_code type;
1007 	int32 count;
1008 	message->GetInfo("text", &type, &count);
1009 
1010 	BStringItem* item = NULL;
1011 	if (fModel->fState == STATE_UPDATE) {
1012 		// During updates because of node monitor events, negatives are
1013 		// also reported (count == 0).
1014 		item = fSearchResults->RemoveResults(ref, count == 0);
1015 	}
1016 
1017 	if (count == 0)
1018 		return;
1019 
1020 	if (item == NULL) {
1021 		item = new ResultItem(ref);
1022 		fSearchResults->AddItem(item);
1023 		item->SetExpanded(fShowLinesCheckbox->Value() == 1);
1024 	}
1025 
1026 	const char* buf;
1027 	while (message->FindString("text", --count, &buf) == B_OK) {
1028 		uchar* temp = (uchar*)strdup(buf);
1029 		uchar* ptr = temp;
1030 
1031 		while (true) {
1032 			// replace all non-printable characters by spaces
1033 			uchar c = *ptr;
1034 
1035 			if (c == '\0')
1036 				break;
1037 
1038 			if (!(c & 0x80) && iscntrl(c))
1039 				*ptr = ' ';
1040 
1041 			++ptr;
1042 		}
1043 
1044 		fSearchResults->AddUnder(new BStringItem((const char*)temp), item);
1045 
1046 		free(temp);
1047 	}
1048 }
1049 
1050 
1051 void
1052 GrepWindow::_OnReportError(BMessage* message)
1053 {
1054 	const char* buf;
1055 	if (message->FindString("error", &buf) == B_OK)
1056 		fSearchResults->AddItem(new BStringItem(buf));
1057 }
1058 
1059 
1060 void
1061 GrepWindow::_OnRecurseLinks()
1062 {
1063 	fModel->fRecurseLinks = !fModel->fRecurseLinks;
1064 	fRecurseLinks->SetMarked(fModel->fRecurseLinks);
1065 	_ModelChanged();
1066 }
1067 
1068 
1069 void
1070 GrepWindow::_OnRecurseDirs()
1071 {
1072 	fModel->fRecurseDirs = !fModel->fRecurseDirs;
1073 	fRecurseDirs->SetMarked(fModel->fRecurseDirs);
1074 	_ModelChanged();
1075 }
1076 
1077 
1078 void
1079 GrepWindow::_OnSkipDotDirs()
1080 {
1081 	fModel->fSkipDotDirs = !fModel->fSkipDotDirs;
1082 	fSkipDotDirs->SetMarked(fModel->fSkipDotDirs);
1083 	_ModelChanged();
1084 }
1085 
1086 
1087 void
1088 GrepWindow::_OnRegularExpression()
1089 {
1090 	fModel->fRegularExpression = !fModel->fRegularExpression;
1091 	fRegularExpression->SetMarked(fModel->fRegularExpression);
1092 	_ModelChanged();
1093 }
1094 
1095 
1096 void
1097 GrepWindow::_OnCaseSensitive()
1098 {
1099 	fModel->fCaseSensitive = !fModel->fCaseSensitive;
1100 	fCaseSensitive->SetMarked(fModel->fCaseSensitive);
1101 	_ModelChanged();
1102 }
1103 
1104 
1105 void
1106 GrepWindow::_OnTextOnly()
1107 {
1108 	fModel->fTextOnly = !fModel->fTextOnly;
1109 	fTextOnly->SetMarked(fModel->fTextOnly);
1110 	_ModelChanged();
1111 }
1112 
1113 
1114 void
1115 GrepWindow::_OnInvokeEditor()
1116 {
1117 	fModel->fInvokeEditor = !fModel->fInvokeEditor;
1118 	fInvokeEditor->SetMarked(fModel->fInvokeEditor);
1119 	_SavePrefs();
1120 }
1121 
1122 
1123 void
1124 GrepWindow::_OnCheckboxShowLines()
1125 {
1126 	// Selection in BOutlineListView in multiple selection mode
1127 	// gets weird when collapsing. I've tried all sorts of things.
1128 	// It seems impossible to make it behave just right.
1129 
1130 	// Going from collapsed to expande mode, the superitems
1131 	// keep their selection, the subitems don't (yet) have
1132 	// a selection. This works as expected, AFAIK.
1133 
1134 	// Going from expanded to collapsed mode, I would like
1135 	// for a selected subitem (line) to select its superitem,
1136 	// (its file) and the subitem be unselected.
1137 
1138 	// I've successfully tried code patches that apply the
1139 	// selection pattern that I want, but with weird effects
1140 	// on subsequent manual selection.
1141 	// Lines stay selected while the user tries to select
1142 	// some other line. It just gets weird.
1143 
1144 	// It's as though listItem->Select() and Deselect()
1145 	// put the items in some semi-selected state.
1146 	// Or maybe I've got it all wrong.
1147 
1148 	// So, here's the plain basic collapse/expand.
1149 	// I think it's the least bad of what's possible on BeOS R5,
1150 	// but perhaps someone comes along with a patch of magic.
1151 
1152 	fModel->fShowLines = (fShowLinesCheckbox->Value() == 1);
1153 
1154 	int32 numItems = fSearchResults->FullListCountItems();
1155 	for (int32 x = 0; x < numItems; ++x) {
1156 		BListItem* listItem = fSearchResults->FullListItemAt(x);
1157 		if (listItem->OutlineLevel() == 0) {
1158 			if (fModel->fShowLines) {
1159 				if (!fSearchResults->IsExpanded(x))
1160 					fSearchResults->Expand(listItem);
1161 			} else {
1162 				if (fSearchResults->IsExpanded(x))
1163 					fSearchResults->Collapse(listItem);
1164 			}
1165 		}
1166 	}
1167 
1168 	fSearchResults->Invalidate();
1169 
1170 	_SavePrefs();
1171 }
1172 
1173 
1174 void
1175 GrepWindow::_OnInvokeItem()
1176 {
1177 	for (int32 selectionIndex = 0; ; selectionIndex++) {
1178 		int32 itemIndex = fSearchResults->CurrentSelection(selectionIndex);
1179 		BListItem* item = fSearchResults->ItemAt(itemIndex);
1180 		if (item == NULL)
1181 			break;
1182 
1183 		int32 level = item->OutlineLevel();
1184 		int32 lineNum = -1;
1185 
1186 		// Get the line number.
1187 		// only this level has line numbers
1188 		if (level == 1) {
1189 			BStringItem* str = dynamic_cast<BStringItem*>(item);
1190 			if (str != NULL) {
1191 				lineNum = atol(str->Text());
1192 					// fortunately, atol knows when to stop the conversion
1193 			}
1194 		}
1195 
1196 		// Get the top-most item and launch its entry_ref.
1197 		while (level != 0) {
1198 			item = fSearchResults->Superitem(item);
1199 			if (item == NULL)
1200 				break;
1201 			level = item->OutlineLevel();
1202 		}
1203 
1204 		ResultItem* entry = dynamic_cast<ResultItem*>(item);
1205 		if (entry != NULL) {
1206 			if (fModel->fInvokeEditor && _OpenInEditor(entry->ref, lineNum))
1207 				return;
1208 
1209 			// ask tracker to open it for us
1210 			BMessenger target(TRACKER_SIGNATURE);
1211 			BMessage message(B_REFS_RECEIVED);
1212 			message.AddRef("refs", &entry->ref);
1213 			if (lineNum > -1) {
1214 				message.AddInt32("be:line", lineNum);
1215 			}
1216 			target.SendMessage(&message);
1217 		}
1218 	}
1219 }
1220 
1221 
1222 void
1223 GrepWindow::_OnSearchText()
1224 {
1225 	CALLED();
1226 
1227 	bool enabled = fSearchText->TextView()->TextLength() != 0;
1228 	fButton->SetEnabled(enabled);
1229 	fSearch->SetEnabled(enabled);
1230 	_StopNodeMonitoring();
1231 }
1232 
1233 
1234 void
1235 GrepWindow::_OnHistoryItem(BMessage* message)
1236 {
1237 	const char* buf;
1238 	if (message->FindString("text", &buf) == B_OK)
1239 		fSearchText->SetText(buf);
1240 }
1241 
1242 
1243 void
1244 GrepWindow::_OnTrimSelection()
1245 {
1246 	if (fSearchResults->CurrentSelection() < 0) {
1247 		BString text;
1248 		text << B_TRANSLATE("Please select the files you wish to keep searching.");
1249 		text << "\n";
1250 		text << B_TRANSLATE("The unselected files will be removed from the list.");
1251 		text << "\n";
1252 		BAlert* alert = new BAlert(NULL, text.String(), B_TRANSLATE("OK"), NULL, NULL,
1253 			B_WIDTH_AS_USUAL, B_WARNING_ALERT);
1254 		alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
1255 		alert->Go(NULL);
1256 		return;
1257 	}
1258 
1259 	BMessage message;
1260 	BString path;
1261 
1262 	for (int32 index = 0; ; index++) {
1263 		BStringItem* item = dynamic_cast<BStringItem*>(
1264 			fSearchResults->ItemAt(index));
1265 		if (item == NULL)
1266 			break;
1267 
1268 		if (!item->IsSelected() || item->OutlineLevel() != 0)
1269 			continue;
1270 
1271 		if (path == item->Text())
1272 			continue;
1273 
1274 		path = item->Text();
1275 		entry_ref ref;
1276 		if (get_ref_for_path(path.String(), &ref) == B_OK)
1277 			message.AddRef("refs", &ref);
1278 	}
1279 
1280 	fModel->fDirectory = entry_ref();
1281 		// invalidated on purpose
1282 
1283 	fModel->fSelectedFiles.MakeEmpty();
1284 	fModel->fSelectedFiles = message;
1285 
1286 	PostMessage(MSG_START_CANCEL);
1287 
1288 	_SetWindowTitle();
1289 }
1290 
1291 
1292 void
1293 GrepWindow::_OnCopyText()
1294 {
1295 	bool onlyCopySelection = true;
1296 
1297 	if (fSearchResults->CurrentSelection() < 0)
1298 		onlyCopySelection = false;
1299 
1300 	BString buffer;
1301 
1302 	for (int32 index = 0; ; index++) {
1303 		BStringItem* item = dynamic_cast<BStringItem*>(
1304 			fSearchResults->ItemAt(index));
1305 		if (item == NULL)
1306 			break;
1307 
1308 		if (onlyCopySelection) {
1309 			if (item->IsSelected())
1310 				buffer << item->Text() << "\n";
1311 		} else
1312 			buffer << item->Text() << "\n";
1313 	}
1314 
1315 	status_t status = B_OK;
1316 
1317 	BMessage* clip = NULL;
1318 
1319 	if (be_clipboard->Lock()) {
1320 		be_clipboard->Clear();
1321 
1322 		clip = be_clipboard->Data();
1323 
1324 		clip->AddData("text/plain", B_MIME_TYPE, buffer.String(),
1325 			buffer.Length());
1326 
1327 		status = be_clipboard->Commit();
1328 
1329 		if (status != B_OK) {
1330 			be_clipboard->Unlock();
1331 			return;
1332 		}
1333 
1334 		be_clipboard->Unlock();
1335 	}
1336 }
1337 
1338 
1339 void
1340 GrepWindow::_OnSelectInTracker()
1341 {
1342 	if (fSearchResults->CurrentSelection() < 0) {
1343 		BAlert* alert = new BAlert("Info",
1344 			B_TRANSLATE("Please select the files you wish to have selected for you in "
1345 				"Tracker."),
1346 			B_TRANSLATE("OK"), NULL, NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT);
1347 		alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
1348 		alert->Go(NULL);
1349 		return;
1350 	}
1351 
1352 	BMessage message;
1353 	BString filePath;
1354 	BPath folderPath;
1355 	BList folderList;
1356 	BString lastFolderAddedToList;
1357 
1358 	for (int32 index = 0; ; index++) {
1359 		BStringItem* item = dynamic_cast<BStringItem*>(
1360 			fSearchResults->ItemAt(index));
1361 		if (item == NULL)
1362 			break;
1363 
1364 		// only open selected and top level (file) items
1365 		if (!item->IsSelected() || item->OutlineLevel() > 0)
1366 			continue;
1367 
1368 		// check if this was previously opened
1369 		if (filePath == item->Text())
1370 			continue;
1371 
1372 		filePath = item->Text();
1373 		entry_ref file_ref;
1374 		if (get_ref_for_path(filePath.String(), &file_ref) != B_OK)
1375 			continue;
1376 
1377 		message.AddRef("refs", &file_ref);
1378 
1379 		// add parent folder to list of folders to open
1380 		folderPath.SetTo(filePath.String());
1381 		if (folderPath.GetParent(&folderPath) == B_OK) {
1382 			BPath* path = new BPath(folderPath);
1383 			if (path->Path() != lastFolderAddedToList) {
1384 				// catches some duplicates
1385 				folderList.AddItem(path);
1386 				lastFolderAddedToList = path->Path();
1387 			} else
1388 				delete path;
1389 		}
1390 	}
1391 
1392 	_RemoveFolderListDuplicates(&folderList);
1393 	_OpenFoldersInTracker(&folderList);
1394 
1395 	int32 aShortWhile = 100000;
1396 	snooze(aShortWhile);
1397 
1398 	if (!_AreAllFoldersOpenInTracker(&folderList)) {
1399 		for (int32 x = 0; x < 5; x++) {
1400 			aShortWhile += 100000;
1401 			snooze(aShortWhile);
1402 			_OpenFoldersInTracker(&folderList);
1403 		}
1404 	}
1405 
1406 	if (!_AreAllFoldersOpenInTracker(&folderList)) {
1407 		BString str1;
1408 		str1 << B_TRANSLATE("%APP_NAME couldn't open one or more folders.");
1409 		str1.ReplaceFirst("%APP_NAME", B_TRANSLATE_NOCOLLECT(kAppName));
1410 		BAlert* alert = new BAlert(NULL, str1.String(), B_TRANSLATE("OK"),
1411 			NULL, NULL, B_WIDTH_AS_USUAL, B_STOP_ALERT);
1412 		alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
1413 		alert->Go(NULL);
1414 		goto out;
1415 	}
1416 
1417 	_SelectFilesInTracker(&folderList, &message);
1418 
1419 out:
1420 	// delete folderList contents
1421 	int32 folderCount = folderList.CountItems();
1422 	for (int32 x = 0; x < folderCount; x++)
1423 		delete static_cast<BPath*>(folderList.ItemAt(x));
1424 }
1425 
1426 
1427 void
1428 GrepWindow::_OnQuitNow()
1429 {
1430 	if (be_app->Lock()) {
1431 		be_app->PostMessage(B_QUIT_REQUESTED);
1432 		be_app->Unlock();
1433 	}
1434 }
1435 
1436 
1437 void
1438 GrepWindow::_OnFileDrop(BMessage* message)
1439 {
1440 	if (fModel->fState != STATE_IDLE)
1441 		return;
1442 
1443 	entry_ref directory;
1444 	_InitRefsReceived(&directory, message);
1445 
1446 	fModel->fDirectory = directory;
1447 	fModel->fSelectedFiles.MakeEmpty();
1448 	fModel->fSelectedFiles = *message;
1449 
1450 	fSearchResults->MakeEmpty();
1451 	fOldPattern = "";
1452 
1453 	_UpdateMenus();
1454 	_SetWindowTitle();
1455 }
1456 
1457 
1458 void
1459 GrepWindow::_OnRefsReceived(BMessage* message)
1460 {
1461 	_OnFileDrop(message);
1462 	fOldPattern = "";
1463 	// It seems a B_CANCEL always follows a B_REFS_RECEIVED
1464 	// from a BFilePanel in Open mode.
1465 	//
1466 	// _OnOpenPanelCancel() is called on B_CANCEL.
1467 	// That's where saving the current dir of the file panel occurs, for now,
1468 	// and also the neccesary deletion of the file panel object.
1469 	// A hidden file panel would otherwise jam the shutdown process.
1470 }
1471 
1472 
1473 void
1474 GrepWindow::_OnOpenPanel()
1475 {
1476 	if (fFilePanel != NULL)
1477 		return;
1478 
1479 	entry_ref path;
1480 	if (get_ref_for_path(fModel->fFilePanelPath.String(), &path) != B_OK)
1481 		return;
1482 
1483 	BMessenger messenger(this);
1484 	BMessage message(MSG_REFS_RECEIVED);
1485 	fFilePanel = new BFilePanel(B_OPEN_PANEL, &messenger, &path,
1486 		B_FILE_NODE | B_DIRECTORY_NODE | B_SYMLINK_NODE, true,
1487 		&message, NULL, true, true);
1488 
1489 	fFilePanel->Show();
1490 }
1491 
1492 
1493 void
1494 GrepWindow::_OnOpenPanelCancel()
1495 {
1496 	entry_ref panelDirRef;
1497 	fFilePanel->GetPanelDirectory(&panelDirRef);
1498 	BPath path(&panelDirRef);
1499 	fModel->fFilePanelPath = path.Path();
1500 	delete fFilePanel;
1501 	fFilePanel = NULL;
1502 }
1503 
1504 
1505 void
1506 GrepWindow::_OnSelectAll(BMessage* message)
1507 {
1508 	BMessenger messenger(fSearchResults);
1509 	messenger.SendMessage(B_SELECT_ALL);
1510 }
1511 
1512 
1513 void
1514 GrepWindow::_OnNewWindow()
1515 {
1516 	BMessage cloneRefs;
1517 		// we don't want GrepWindow::InitRefsReceived()
1518 		// to mess with the refs of the current window
1519 
1520 	cloneRefs = fModel->fSelectedFiles;
1521 	cloneRefs.AddRef("dir_ref", &(fModel->fDirectory));
1522 
1523 	new GrepWindow(&cloneRefs);
1524 }
1525 
1526 
1527 void
1528 GrepWindow::_OnSetTargetToParent()
1529 {
1530 	BEntry entry(&(fModel->fDirectory));
1531 	BEntry parent;
1532 
1533 	if (entry.GetParent(&parent) == B_OK) {
1534 		entry_ref parent_ref;
1535 		parent.GetRef(&parent_ref);
1536 
1537 		BMessage parentRefs;
1538 		parentRefs.AddRef("dir_ref", &parent_ref);
1539 		_OnFileDrop(&parentRefs);
1540 	}
1541 }
1542 
1543 
1544 // #pragma mark -
1545 
1546 
1547 void
1548 GrepWindow::_ModelChanged()
1549 {
1550 	CALLED();
1551 
1552 	_StopNodeMonitoring();
1553 	_SavePrefs();
1554 }
1555 
1556 bool
1557 GrepWindow::_OpenInEditor(const entry_ref &ref, int32 lineNum)
1558 {
1559 	BMessage message(B_REFS_RECEIVED);
1560 	message.AddRef("refs", &ref);
1561 
1562 	if (lineNum != -1) {
1563 		message.AddInt32("line", lineNum);	// for Pe
1564 		message.AddInt32("be:line", lineNum);
1565 	}
1566 
1567 	// Find the preferred code editor
1568 	char editorSig[B_MIME_TYPE_LENGTH];
1569 	BMimeType mimeType("text/x-source-code");
1570 	mimeType.GetPreferredApp(editorSig);
1571 
1572 	entry_ref editor;
1573 	if (be_roster->FindApp(editorSig, &editor) != B_OK)
1574 		return false;
1575 
1576 	if (be_roster->IsRunning(&editor)) {
1577 		BMessenger msngr(NULL, be_roster->TeamFor(&editor));
1578 		if (msngr.SendMessage(&message) != B_OK)
1579 			return false;
1580 	} else {
1581 		if (be_roster->Launch(&editor, &message) != B_OK)
1582 			return false;
1583 	}
1584 
1585 	return true;
1586 }
1587 
1588 
1589 void
1590 GrepWindow::_RemoveFolderListDuplicates(BList* folderList)
1591 {
1592 	if (folderList == NULL)
1593 		return;
1594 
1595 	int32 folderCount = folderList->CountItems();
1596 	BString folderX;
1597 	BString folderY;
1598 
1599 	for (int32 x = 0; x < folderCount; x++) {
1600 		BPath* path = static_cast<BPath*>(folderList->ItemAt(x));
1601 		folderX = path->Path();
1602 
1603 		for (int32 y = x + 1; y < folderCount; y++) {
1604 			path = static_cast<BPath*>(folderList->ItemAt(y));
1605 			folderY = path->Path();
1606 			if (folderX == folderY) {
1607 				delete static_cast<BPath*>(folderList->RemoveItem(y));
1608 				folderCount--;
1609 				y--;
1610 			}
1611 		}
1612 	}
1613 }
1614 
1615 
1616 status_t
1617 GrepWindow::_OpenFoldersInTracker(BList* folderList)
1618 {
1619 	status_t status = B_OK;
1620 	BMessage refsMsg(B_REFS_RECEIVED);
1621 
1622 	int32 folderCount = folderList->CountItems();
1623 	for (int32 index = 0; index < folderCount; index++) {
1624 		BPath* path = static_cast<BPath*>(folderList->ItemAt(index));
1625 
1626 		entry_ref folderRef;
1627 		status = get_ref_for_path(path->Path(), &folderRef);
1628 		if (status != B_OK)
1629 			return status;
1630 
1631 		status = refsMsg.AddRef("refs", &folderRef);
1632 		if (status != B_OK)
1633 			return status;
1634 	}
1635 
1636 	status = be_roster->Launch(TRACKER_SIGNATURE, &refsMsg);
1637 	if (status != B_OK && status != B_ALREADY_RUNNING)
1638 		return status;
1639 
1640 	return B_OK;
1641 }
1642 
1643 
1644 bool
1645 GrepWindow::_AreAllFoldersOpenInTracker(BList* folderList)
1646 {
1647 	// Compare the folders we want open in Tracker to
1648 	// the actual Tracker windows currently open.
1649 
1650 	// We build a list of open Tracker windows, and compare
1651 	// it to the list of folders we want open in Tracker.
1652 
1653 	// If all folders exists in the list of Tracker windows
1654 	// return true
1655 
1656 	status_t status = B_OK;
1657 	BMessenger trackerMessenger(TRACKER_SIGNATURE);
1658 	BMessage sendMessage;
1659 	BMessage replyMessage;
1660 	BList windowList;
1661 
1662 	if (!trackerMessenger.IsValid())
1663 		return false;
1664 
1665 	for (int32 count = 1; ; count++) {
1666 		sendMessage.MakeEmpty();
1667 		replyMessage.MakeEmpty();
1668 
1669 		sendMessage.what = B_GET_PROPERTY;
1670 		sendMessage.AddSpecifier("Path");
1671 		sendMessage.AddSpecifier("Poses");
1672 		sendMessage.AddSpecifier("Window", count);
1673 
1674 		status = trackerMessenger.SendMessage(&sendMessage, &replyMessage);
1675 		if (status != B_OK)
1676 			return false;
1677 
1678 		entry_ref* trackerRef = new (nothrow) entry_ref;
1679 		status = replyMessage.FindRef("result", trackerRef);
1680 		if (status != B_OK || !windowList.AddItem(trackerRef)) {
1681 			delete trackerRef;
1682 			break;
1683 		}
1684 	}
1685 
1686 	int32 folderCount = folderList->CountItems();
1687 	int32 windowCount = windowList.CountItems();
1688 
1689 	int32 found = 0;
1690 	BPath* folderPath;
1691 	entry_ref* windowRef;
1692 	BString folderString;
1693 	BString windowString;
1694 	bool result = false;
1695 
1696 	if (folderCount > windowCount) {
1697 		// at least one folder is not open in Tracker
1698 		goto out;
1699 	}
1700 
1701 	// Loop over the two lists and see if all folders exist as window
1702 	for (int32 x = 0; x < folderCount; x++) {
1703 		for (int32 y = 0; y < windowCount; y++) {
1704 
1705 			folderPath = static_cast<BPath*>(folderList->ItemAt(x));
1706 			windowRef = static_cast<entry_ref*>(windowList.ItemAt(y));
1707 
1708 			if (folderPath == NULL)
1709 				break;
1710 
1711 			if (windowRef == NULL)
1712 				break;
1713 
1714 			folderString = folderPath->Path();
1715 
1716 			BEntry entry;
1717 			BPath path;
1718 
1719 			if (entry.SetTo(windowRef) == B_OK && path.SetTo(&entry) == B_OK) {
1720 
1721 				windowString = path.Path();
1722 
1723 				if (folderString == windowString) {
1724 					found++;
1725 					break;
1726 				}
1727 			}
1728 		}
1729 	}
1730 
1731 	result = found == folderCount;
1732 
1733 out:
1734 	// delete list of window entry_refs
1735 	for (int32 x = 0; x < windowCount; x++)
1736 		delete static_cast<entry_ref*>(windowList.ItemAt(x));
1737 
1738 	return result;
1739 }
1740 
1741 
1742 status_t
1743 GrepWindow::_SelectFilesInTracker(BList* folderList, BMessage* refsMessage)
1744 {
1745 	// loops over Tracker windows, find each windowRef,
1746 	// extract the refs that are children of windowRef,
1747 	// add refs to selection-message
1748 
1749 	status_t status = B_OK;
1750 	BMessenger trackerMessenger(TRACKER_SIGNATURE);
1751 	BMessage windowSendMessage;
1752 	BMessage windowReplyMessage;
1753 	BMessage selectionSendMessage;
1754 	BMessage selectionReplyMessage;
1755 
1756 	if (!trackerMessenger.IsValid())
1757 		return status;
1758 
1759 	// loop over Tracker windows
1760 	for (int32 windowCount = 1; ; windowCount++) {
1761 
1762 		windowSendMessage.MakeEmpty();
1763 		windowReplyMessage.MakeEmpty();
1764 
1765 		windowSendMessage.what = B_GET_PROPERTY;
1766 		windowSendMessage.AddSpecifier("Path");
1767 		windowSendMessage.AddSpecifier("Poses");
1768 		windowSendMessage.AddSpecifier("Window", windowCount);
1769 
1770 		status = trackerMessenger.SendMessage(&windowSendMessage,
1771 			&windowReplyMessage);
1772 
1773 		if (status != B_OK)
1774 			return status;
1775 
1776 		entry_ref windowRef;
1777 		status = windowReplyMessage.FindRef("result", &windowRef);
1778 		if (status != B_OK)
1779 			break;
1780 
1781 		int32 folderCount = folderList->CountItems();
1782 
1783 		// loop over folders in folderList
1784 		for (int32 x = 0; x < folderCount; x++) {
1785 			BPath* folderPath = static_cast<BPath*>(folderList->ItemAt(x));
1786 			if (folderPath == NULL)
1787 				break;
1788 
1789 			BString folderString = folderPath->Path();
1790 
1791 			BEntry windowEntry;
1792 			BPath windowPath;
1793 			BString windowString;
1794 
1795 			status = windowEntry.SetTo(&windowRef);
1796 			if (status != B_OK)
1797 				break;
1798 
1799 			status = windowPath.SetTo(&windowEntry);
1800 			if (status != B_OK)
1801 				break;
1802 
1803 			windowString = windowPath.Path();
1804 
1805 			// if match, loop over items in refsMessage
1806 			// and add those that live in window/folder
1807 			// to a selection message
1808 
1809 			if (windowString == folderString) {
1810 				selectionSendMessage.MakeEmpty();
1811 				selectionSendMessage.what = B_SET_PROPERTY;
1812 				selectionReplyMessage.MakeEmpty();
1813 
1814 				// loop over refs and add to message
1815 				entry_ref ref;
1816 				for (int32 index = 0; ; index++) {
1817 					status = refsMessage->FindRef("refs", index, &ref);
1818 					if (status != B_OK)
1819 						break;
1820 
1821 					BDirectory directory(&windowRef);
1822 					BEntry entry(&ref);
1823 					if (directory.Contains(&entry))
1824 						selectionSendMessage.AddRef("data", &ref);
1825 				}
1826 
1827 				// finish selection message
1828 				selectionSendMessage.AddSpecifier("Selection");
1829 				selectionSendMessage.AddSpecifier("Poses");
1830 				selectionSendMessage.AddSpecifier("Window", windowCount);
1831 
1832 				trackerMessenger.SendMessage(&selectionSendMessage,
1833 					&selectionReplyMessage);
1834 			}
1835 		}
1836 	}
1837 
1838 	return B_OK;
1839 }
1840