source: trunk/Cocoa/Pester/Source/NJRQTMediaPopUpButton.m@ 355

Last change on this file since 355 was 355, checked in by Nicholas Riley, 15 years ago

English.lproj/MainMenu.nib: Modernize menu and alarm set dialog
layout. Use keyed archiving (10.2+) nib format.

Info-Pester.plist: Moved from old PBX project.

NJRFSObjectSelector.m: Bug fixes from code sent to Joey: remove
incorrect usage of tryToPerform:with:; fix logic error in menu
construction. Work around Cocoa's deciding that the menu font size
needs adjustment when it doesn't - so the menu font size now matches
the button font size, though the position is still off. Don't pop up
a menu if we're disabled. Use IconRefs for menu icons, though not
(yet) for the button icon.

NJRHistoryTrackingComboBox.m: Remove item height adjustment
workaround; it now makes the items too tall.

NJRHotKey.m: Add a missing [super dealloc] caught by current GCC.

NJRHotKeyField.m: Add a missing [super dealloc] caught by current GCC.

NJRHotKeyManager.m: Add a missing [super dealloc] caught by current
GCC.

NJRIntervalField.m: Fix some type errors.

NJRQTMediaPopUpButton.m: Replace SoundFileManager SPI usage, which
doesn't work in Leopard anyway, with manual enumeration of system
sounds. Start migration to QTKit. Use IconRefs for menu icons.

NJRReadMeController.m: Change source encoding to UTF-8.

NJRSoundManager.m: Fix a type error.

NJRVoicePopUpButton.m: Change source encoding to UTF-8.

NSMenuItem-NJRExtensions.[hm]: Code from ICeCoffEE to use IconRefs for
menu item icons.

PSAlarm.m: Change source encoding to UTF-8.

PSAlarms.m: Fix a signedness mismatch.

PSAlarmsController.m: Change source encoding to UTF-8.

PSAlarmSetController.m: Set keyboard focus after unchecking "Do
script:" and "Play" checkboxes.

PSAlerts.m: Add a missing [super dealloc] caught by current GCC. Fix
a memory leak in property list serialization.

PSPowerManager.[hm]: There's now API for scheduling wakeups; use it
(the old code asserted on startup). To fix: removing scheduled
wakeup. Fix a small type-checking error.

PSPreferencesController.m: Add a missing [super dealloc] caught by
current GCC.

PSScriptAlert.m: Change source encoding to UTF-8.

PSTimeDateEditor.m: Fix a tiny, and one-time, memory leak.

PSTimer.m: Update for new PSPowerManager API.

Pester.pbproj: Deleted; now supporting OS X 10.4+ (up from 10.1,
aiee.)

Pester.xcodeproj: Xcode 2.4+ project, upgraded targets, etc.

SoundFileManager.h: Deleted; this SPI no longer exists in Leopard and
possibly earlier.

File size: 21.6 KB
Line 
1//
2// NJRQTMediaPopUpButton.m
3// Pester
4//
5// Created by Nicholas Riley on Sat Oct 26 2002.
6// Copyright (c) 2002 Nicholas Riley. All rights reserved.
7//
8
9#import "NJRQTMediaPopUpButton.h"
10#import "NJRSoundManager.h"
11#import "NSMovie-NJRExtensions.h"
12#import "NSMenuItem-NJRExtensions.h"
13
14#import <QTKit/QTKit.h>
15
16#include <QuickTime/Movies.h>
17#include <limits.h>
18
19static const int NJRQTMediaPopUpButtonMaxRecentItems = 10;
20
21NSString * const NJRQTMediaPopUpButtonMovieChangedNotification = @"NJRQTMediaPopUpButtonMovieChangedNotification";
22
23@interface NJRQTMediaPopUpButton (Private)
24- (void)_setPath:(NSString *)path;
25- (NSMenuItem *)_itemForAlias:(BDAlias *)alias;
26- (BOOL)_validateWithPreview:(BOOL)doPreview;
27- (void)_updateOutputVolume;
28- (void)_startSoundPreview;
29@end
30
31@implementation NJRQTMediaPopUpButton
32
33// XXX handle refreshing sound list on resume
34// XXX don't add icons on Puma, they look like ass
35// XXX launch preview on a separate thread (if movies take too long to load, they inhibit the interface responsiveness)
36
37// Recent media layout:
38// Most recent media are at TOP of menu (smaller item numbers, starting at [self indexOfItem: otherItem] + 1)
39// Most recent media are at END of array (larger indices)
40
41#pragma mark recently selected media tracking
42
43- (NSString *)_defaultKey;
44{
45 NSAssert([self tag] != 0, NSLocalizedString(@"Can't track recently selected media for popup with tag 0: please set a tag", "Assertion for QuickTime media popup button if tag is 0"));
46 return [NSString stringWithFormat: @"NJRQTMediaPopUpButtonMaxRecentItems tag %d", [self tag]];
47}
48
49- (void)_writeRecentMedia;
50{
51 NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
52 [defaults setObject: recentMediaAliasData forKey: [self _defaultKey]];
53 [defaults synchronize];
54}
55
56- (NSMenuItem *)_addRecentMediaAtPath:(NSString *)path withAlias:(BDAlias *)alias;
57{
58 NSString *title = [[NSFileManager defaultManager] displayNameAtPath: path];
59 NSMenu *menu = [self menu];
60 NSMenuItem *item;
61 if (title == nil || path == nil) return nil;
62 item = [menu insertItemWithTitle: title action: @selector(_aliasSelected:) keyEquivalent: @"" atIndex: [menu indexOfItem: otherItem] + 1];
63 [item setTarget: self];
64 [item setRepresentedObject: alias];
65 [item setImageFromPath: path];
66 [recentMediaAliasData addObject: [alias aliasData]];
67 if ([recentMediaAliasData count] > NJRQTMediaPopUpButtonMaxRecentItems) {
68 [menu removeItemAtIndex: [menu numberOfItems] - 1];
69 [recentMediaAliasData removeObjectAtIndex: 0];
70 }
71 return item;
72}
73
74- (void)_addRecentMediaFromAliasesData:(NSArray *)aliasesData;
75{
76 NSEnumerator *e = [aliasesData objectEnumerator];
77 NSData *aliasData;
78 BDAlias *alias;
79 while ( (aliasData = [e nextObject]) != nil) {
80 if ( (alias = [[BDAlias alloc] initWithData: aliasData]) != nil) {
81 [self _addRecentMediaAtPath: [alias fullPath] withAlias: alias];
82 [alias release];
83 }
84 }
85}
86
87- (void)_validateRecentMedia;
88{
89 NSEnumerator *e = [recentMediaAliasData reverseObjectEnumerator];
90 NSData *aliasData;
91 NSMenuItem *item;
92 BDAlias *itemAlias;
93 int otherIndex = [self indexOfItem: otherItem];
94 int aliasDataCount = [recentMediaAliasData count];
95 int lastItemIndex = [self numberOfItems] - 1;
96 int recentItemCount = lastItemIndex - otherIndex;
97 int recentItemIndex = otherIndex;
98 NSAssert2(recentItemCount == aliasDataCount, @"Counted %d recent menu items, %d of alias data", recentItemCount, aliasDataCount);
99 while ( (aliasData = [e nextObject]) != nil) { // go BACKWARD through array while going DOWN menu
100 recentItemIndex++;
101 item = [self itemAtIndex: recentItemIndex];
102 itemAlias = [item representedObject];
103 if ([itemAlias aliasDataIsEqual: aliasData])
104 NSLog(@"item %d %@: %@", recentItemIndex, [item title], [itemAlias fullPath]);
105 else
106 NSLog(@"ITEM %d %@: %@ != aliasData %@", recentItemIndex, [item title], [itemAlias fullPath], [[BDAlias aliasWithData: aliasData] fullPath]);
107 }
108}
109
110#pragma mark initialize-release
111
112- (void)_setUp;
113{
114 NSMenu *menu = [self menu];
115 [self removeAllItems];
116 [menu setAutoenablesItems: NO];
117
118 NSMenuItem *item = [menu addItemWithTitle: @"Alert sound" action: @selector(_beepSelected:) keyEquivalent: @""];
119 [item setTarget: self];
120 [menu addItem: [NSMenuItem separatorItem]];
121
122 NSMutableArray *soundFolderPaths = [[NSMutableArray alloc] initWithCapacity: kLastDomainConstant - kSystemDomain + 1];
123 for (FSVolumeRefNum domain = kSystemDomain ; domain <= kLastDomainConstant ; domain++) {
124 OSStatus err;
125 FSRef fsr;
126 err = FSFindFolder(domain, kSystemSoundsFolderType, false, &fsr);
127 if (err != noErr) continue;
128
129 UInt8 path[PATH_MAX];
130 err = FSRefMakePath(&fsr, path, PATH_MAX);
131 if (err != noErr) continue;
132
133 CFStringRef pathString = CFStringCreateWithFileSystemRepresentation(NULL, (const char *)path);
134 if (pathString == NULL) continue;
135
136 [soundFolderPaths addObject: (NSString *)pathString];
137 CFRelease(pathString);
138 }
139 NSFileManager *fm = [NSFileManager defaultManager];
140 NSEnumerator *e = [soundFolderPaths objectEnumerator];
141 NSString *folderPath;
142 while ( (folderPath = [e nextObject]) != nil) {
143 if (![fm changeCurrentDirectoryPath: folderPath]) continue;
144
145 NSDirectoryEnumerator *de = [fm enumeratorAtPath: folderPath];
146 NSString *path;
147 while ( (path = [de nextObject]) != nil) {
148 BOOL isDir;
149 if (![fm fileExistsAtPath: path isDirectory: &isDir] || isDir) {
150 [de skipDescendents];
151 continue;
152 }
153
154 if (![QTMovie canInitWithFile: path]) continue;
155
156 item = [menu addItemWithTitle: [fm displayNameAtPath: path]
157 action: @selector(_systemSoundSelected:)
158 keyEquivalent: @""];
159 [item setTarget: self];
160 [item setImageFromPath: path];
161 path = [folderPath stringByAppendingPathComponent: path];
162 [item setRepresentedObject: path];
163 [item setToolTip: path];
164 }
165 }
166 [soundFolderPaths release];
167
168 if ([menu numberOfItems] == 2) {
169 item = [menu addItemWithTitle: NSLocalizedString(@"Can't locate alert sounds", "QuickTime media popup menu item surrogate for alert sound list if no sounds are found") action: nil keyEquivalent: @""];
170 [item setEnabled: NO];
171 }
172
173 [menu addItem: [NSMenuItem separatorItem]];
174 item = [menu addItemWithTitle: NSLocalizedString(@"Other...", "Media popup item to select another sound/movie/image") action: @selector(select:) keyEquivalent: @""];
175 [item setTarget: self];
176 otherItem = [item retain];
177
178 [self _validateWithPreview: NO];
179
180 recentMediaAliasData = [[NSMutableArray alloc] initWithCapacity: NJRQTMediaPopUpButtonMaxRecentItems + 1];
181 [self _addRecentMediaFromAliasesData: [[NSUserDefaults standardUserDefaults] arrayForKey: [self _defaultKey]]];
182 // [self _validateRecentMedia];
183
184 [self registerForDraggedTypes:
185 [NSArray arrayWithObjects: NSFilenamesPboardType, NSURLPboardType, nil]];
186}
187
188- (id)initWithFrame:(NSRect)frame;
189{
190 if ( (self = [super initWithFrame: frame]) != nil) {
191 [self _setUp];
192 }
193 return self;
194}
195
196- (id)initWithCoder:(NSCoder *)coder;
197{
198 if ( (self = [super initWithCoder: coder]) != nil) {
199 [self _setUp];
200 }
201 return self;
202}
203
204- (void)dealloc;
205{
206 [recentMediaAliasData release]; recentMediaAliasData = nil;
207 [otherItem release];
208 [selectedAlias release]; [previousAlias release];
209 [super dealloc];
210}
211
212#pragma mark accessing
213
214- (BDAlias *)selectedAlias;
215{
216 return selectedAlias;
217}
218
219- (void)_setAlias:(BDAlias *)alias;
220{
221 BDAlias *oldAlias = [selectedAlias retain];
222 [previousAlias release];
223 previousAlias = oldAlias;
224 if (selectedAlias != alias) {
225 [selectedAlias release];
226 selectedAlias = [alias retain];
227 }
228}
229
230- (void)setAlias:(BDAlias *)alias;
231{
232 [self _setAlias: alias];
233 if ([self _validateWithPreview: NO]) {
234 [self selectItem: [self _itemForAlias: selectedAlias]];
235 }
236}
237
238- (void)_setPath:(NSString *)path;
239{
240 [self _setAlias: [BDAlias aliasWithPath: path]];
241}
242
243- (NSMenuItem *)_itemForAlias:(BDAlias *)alias;
244{
245 if (alias == nil) return [self itemAtIndex: 0];
246
247 // [self _validateRecentMedia];
248 NSString *path = [alias fullPath];
249
250 // selected a system sound?
251 int itemIndex = [[self menu] indexOfItemWithRepresentedObject: path];
252 if (itemIndex != -1) {
253 // NSLog(@"_itemForAlias: selected system sound");
254 return [self itemAtIndex: itemIndex];
255 } else {
256 NSEnumerator *e = [recentMediaAliasData reverseObjectEnumerator];
257 NSData *aliasData;
258 NSMenuItem *item;
259 int recentIndex = 1;
260
261 while ( (aliasData = [e nextObject]) != nil) {
262 // selected a recently selected, non-system sound?
263 if ([alias aliasDataIsEqual: aliasData]) {
264 int otherIndex = [self indexOfItem: otherItem];
265 int menuIndex = recentIndex + otherIndex;
266 if (menuIndex == otherIndex + 1) return [self itemAtIndex: menuIndex]; // already at top
267 // remove item, add (at top) later
268 // NSLog(@"_itemForAlias removing item: idx %d + otherItemIdx %d + 1 = %d [%@]", recentIndex, otherIndex, menuIndex, [self itemAtIndex: menuIndex]);
269 [self removeItemAtIndex: menuIndex];
270 [recentMediaAliasData removeObjectAtIndex: [recentMediaAliasData count] - recentIndex];
271 break;
272 }
273 recentIndex++;
274 }
275
276 // create the item
277 item = [self _addRecentMediaAtPath: path withAlias: alias];
278 [self _writeRecentMedia];
279 return item;
280 }
281}
282
283- (BOOL)canRepeat;
284{
285 return movieCanRepeat;
286}
287
288- (BOOL)hasAudio;
289{
290 return movieHasAudio;
291}
292
293- (float)outputVolume;
294{
295 return outputVolume;
296}
297
298- (void)setOutputVolume:(float)volume withPreview:(BOOL)doPreview;
299{
300 if (![NJRSoundManager volumeIsNotMutedOrInvalid: volume]) return;
301 outputVolume = volume;
302 if (!doPreview) return;
303 // NSLog(@"setting volume to %f, preview movie %@", volume, [preview movie]);
304 if ([preview movie] == nil) {
305 [self _validateWithPreview: YES];
306 } else { // don't restart preview if already playing
307 [self _updateOutputVolume];
308 }
309}
310
311#pragma mark selected media validation
312
313- (void)_invalidateSelection;
314{
315 [self _setAlias: previousAlias];
316 [self selectItem: [self _itemForAlias: [self selectedAlias]]];
317 [[NSNotificationCenter defaultCenter] postNotificationName: NJRQTMediaPopUpButtonMovieChangedNotification object: self];
318}
319
320- (void)_updateOutputVolume;
321{
322 if ([preview movie] != nil && outputVolume != kNoVolume) {
323 if (!savedVolume && ![NJRSoundManager saveDefaultOutputVolume])
324 return;
325 savedVolume = YES;
326 [NJRSoundManager setDefaultOutputVolume: outputVolume];
327 if (![preview isPlaying]) [self _startSoundPreview];
328 }
329}
330
331- (void)_resetOutputVolume;
332{
333 [NJRSoundManager restoreSavedDefaultOutputVolumeIfCurrently: outputVolume];
334 savedVolume = NO;
335}
336
337- (void)_resetPreview;
338{
339 // if we donÕt do this after the runloop has finished, then we crash in MCIdle because itÕs expecting a movie and doesnÕt have one any more
340 [preview setMovie: nil]; // otherwise we get an extra runloop timer which uses a lot of CPU from +[NSMovieView _idleMovies]
341 // need to wait for runloop to stop movie, otherwise we're still playing at the time the volume changes
342 [self performSelector: @selector(_resetOutputVolume) withObject: nil afterDelay: 0];
343}
344
345void
346MovieStoppedCB(QTCallBack cb, long refCon)
347{
348 NJRQTMediaPopUpButton *self = (NJRQTMediaPopUpButton *)refCon;
349 // avoid multiple messages from multiple movie playback cycles in the same runloop
350 [NSObject cancelPreviousPerformRequestsWithTarget: self selector: @selector(_resetPreview) object: nil];
351 [self performSelector: @selector(_resetPreview) withObject: nil afterDelay: 0];
352 DisposeCallBack(cb);
353}
354
355- (void)_startSoundPreview;
356{
357 Movie qtMovie = [[preview movie] QTMovie];
358 QTCallBack cbStop = NewCallBack(GetMovieTimeBase(qtMovie), callBackAtExtremes);
359 QTCallBackUPP cbStopUPP = NewQTCallBackUPP(MovieStoppedCB);
360 OSErr err = CallMeWhen(cbStop, cbStopUPP, (long)self, triggerAtStop, 0, 0);
361 if (err != noErr) {
362 NSLog(@"Can't register QuickTime stop timebase callback for preview: %ld", err);
363 DisposeCallBack(cbStop);
364 }
365 [preview start: self];
366}
367
368- (BOOL)_validateWithPreview:(BOOL)doPreview;
369{
370 [preview stop: self];
371 if (selectedAlias == nil) {
372 [preview setMovie: nil];
373 movieCanRepeat = YES;
374 movieHasAudio = NO; // XXX should be YES - this is broken, NSBeep() is asynchronous
375 if (doPreview) {
376 // XXX [self _updateOutputVolume];
377 NSBeep();
378 // XXX [self _resetOutputVolume];
379 }
380 } else {
381 NSMovie *movie = [[NSMovie alloc] initWithURL: [NSURL fileURLWithPath: [selectedAlias fullPath]] byReference: YES];
382 movieCanRepeat = ![movie isStatic];
383 if (movieHasAudio = [movie hasAudio]) {
384 [preview setMovie: doPreview ? movie : nil];
385 [self _updateOutputVolume];
386 } else {
387 [self _resetPreview];
388 doPreview = NO;
389 if (movie == nil) {
390 NSBeginAlertSheet(@"Format not recognized", nil, nil, nil, [self window], nil, nil, nil, nil, NSLocalizedString(@"The item you selected isn't a sound or movie recognized by QuickTime. Please select a different item.", "Message displayed in alert sheet when media document is not recognized by QuickTime"));
391 [self _invalidateSelection];
392 return NO;
393 }
394 if (![movie hasAudio] && ![movie hasVideo]) {
395 NSBeginAlertSheet(@"No video or audio", nil, nil, nil, [self window], nil, nil, nil, nil, NSLocalizedString(@"'%@' contains neither audio nor video content playable by QuickTime. Please select a different item.", "Message displayed in alert sheet when media document is readable, but has neither audio nor video tracks"), [[NSFileManager defaultManager] displayNameAtPath: [selectedAlias fullPath]]);
396 [self _invalidateSelection];
397 [movie release];
398 return NO;
399 }
400 }
401 if (doPreview) {
402 [self _startSoundPreview];
403 }
404 [movie release];
405 }
406 [[NSNotificationCenter defaultCenter] postNotificationName: NJRQTMediaPopUpButtonMovieChangedNotification object: self];
407 return YES;
408}
409
410#pragma mark actions
411
412- (IBAction)stopSoundPreview:(id)sender;
413{
414 [preview stop: self];
415 [self _resetPreview];
416}
417
418- (void)_beepSelected:(NSMenuItem *)sender;
419{
420 [self _setAlias: nil];
421 [self _validateWithPreview: YES];
422}
423
424- (void)_systemSoundSelected:(NSMenuItem *)sender;
425{
426 [self _setPath: [sender representedObject]];
427 if (![self _validateWithPreview: YES]) {
428 [[self menu] removeItem: sender];
429 }
430}
431
432- (void)_aliasSelected:(NSMenuItem *)sender;
433{
434 BDAlias *alias = [sender representedObject];
435 int index = [self indexOfItem: sender], otherIndex = [self indexOfItem: otherItem];
436 [self _setAlias: alias];
437 if (![self _validateWithPreview: YES]) {
438 [[self menu] removeItem: sender];
439 } else if (index > otherIndex + 1) { // move "other" item to top of list
440 int recentIndex = [recentMediaAliasData count] - index + otherIndex;
441 NSMenuItem *item = [[self itemAtIndex: index] retain];
442 NSData *data = [[recentMediaAliasData objectAtIndex: recentIndex] retain];
443 // [self _validateRecentMedia];
444 [self removeItemAtIndex: index];
445 [[self menu] insertItem: item atIndex: otherIndex + 1];
446 [self selectItem: item];
447 [item release];
448 NSAssert(recentIndex >= 0, @"Recent media index invalid");
449 // NSLog(@"_aliasSelected removing item %d - %d + %d = %d of recentMediaAliasData", [recentMediaAliasData count], index, otherIndex, recentIndex);
450 [recentMediaAliasData removeObjectAtIndex: recentIndex];
451 [recentMediaAliasData addObject: data];
452 [self _validateRecentMedia];
453 [data release];
454 } // else NSLog(@"_aliasSelected ...already at top");
455}
456
457- (IBAction)select:(id)sender;
458{
459 NSOpenPanel *openPanel = [NSOpenPanel openPanel];
460 NSString *path = [selectedAlias fullPath];
461 [openPanel setAllowsMultipleSelection: NO];
462 [openPanel setCanChooseDirectories: NO];
463 [openPanel setCanChooseFiles: YES];
464 [openPanel beginSheetForDirectory: [path stringByDeletingLastPathComponent]
465 file: [path lastPathComponent]
466 types: nil // XXX fix for QuickTime!
467 modalForWindow: [self window]
468 modalDelegate: self
469 didEndSelector: @selector(openPanelDidEnd:returnCode:contextInfo:)
470 contextInfo: nil];
471}
472
473- (void)openPanelDidEnd:(NSOpenPanel *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo;
474{
475 [sheet close];
476
477 if (returnCode == NSOKButton) {
478 NSArray *files = [sheet filenames];
479 NSAssert1([files count] == 1, @"%d items returned, only one expected", [files count]);
480 [self _setPath: [files objectAtIndex: 0]];
481 if ([self _validateWithPreview: YES]) {
482 [self selectItem: [self _itemForAlias: selectedAlias]];
483 }
484 } else {
485 // "Other..." item is still selected, revert to previously selected item
486 // XXX issue with cancelling, top item in recent menu is sometimes duplicated!?
487 [self selectItem: [self _itemForAlias: selectedAlias]];
488 }
489 // [self _validateRecentMedia];
490}
491
492- (void)setEnabled:(BOOL)flag;
493{
494 [super setEnabled: flag];
495 if (flag) ; // XXX [self startSoundPreview: self]; // need to prohibit at startup
496 else [self stopSoundPreview: self];
497}
498
499#pragma mark drag feedback
500
501- (void)drawRect:(NSRect)rect;
502{
503 if (dragAccepted) {
504 NSWindow *window = [self window];
505 NSRect boundsRect = [self bounds];
506 BOOL isFirstResponder = ([window firstResponder] == self);
507 // focus ring and drag feedback interfere with one another
508 if (isFirstResponder) [window makeFirstResponder: window];
509 [super drawRect: rect];
510 [[NSColor selectedControlColor] set];
511 NSFrameRectWithWidthUsingOperation(NSInsetRect(boundsRect, 2, 2), 3, NSCompositeSourceIn);
512 if (isFirstResponder) [window makeFirstResponder: self];
513 } else {
514 [super drawRect: rect];
515 }
516}
517
518@end
519
520@implementation NJRQTMediaPopUpButton (NSDraggingDestination)
521
522- (BOOL)acceptsDragFrom:(id <NSDraggingInfo>)sender;
523{
524 NSURL *url = [NSURL URLFromPasteboard: [sender draggingPasteboard]];
525 NSFileManager *fm = [NSFileManager defaultManager];
526 BOOL isDir;
527
528 if (url == nil || ![url isFileURL]) return NO;
529
530 if (![fm fileExistsAtPath: [url path] isDirectory: &isDir]) return NO;
531
532 if (isDir) return NO;
533
534 return YES;
535}
536
537- (NSString *)_descriptionForDraggingInfo:(id <NSDraggingInfo>)sender;
538{
539 NSDragOperation mask = [sender draggingSourceOperationMask];
540 NSMutableString *s = [NSMutableString stringWithFormat: @"Drag seq %d source: %@",
541 [sender draggingSequenceNumber], [sender draggingSource]];
542 NSPasteboard *draggingPasteboard = [sender draggingPasteboard];
543 NSArray *types = [draggingPasteboard types];
544 NSEnumerator *e = [types objectEnumerator];
545 NSString *type;
546 [s appendString: @"\nDrag operations:"];
547 if (mask & NSDragOperationCopy) [s appendString: @" copy"];
548 if (mask & NSDragOperationLink) [s appendString: @" link"];
549 if (mask & NSDragOperationGeneric) [s appendString: @" generic"];
550 if (mask & NSDragOperationPrivate) [s appendString: @" private"];
551 if (mask & NSDragOperationMove) [s appendString: @" move"];
552 if (mask & NSDragOperationDelete) [s appendString: @" delete"];
553 if (mask & NSDragOperationEvery) [s appendString: @" every"];
554 if (mask & NSDragOperationNone) [s appendString: @" none"];
555 [s appendFormat: @"\nImage: %@ at %@", [sender draggedImage],
556 NSStringFromPoint([sender draggedImageLocation])];
557 [s appendFormat: @"\nDestination: %@ at %@", [sender draggingDestinationWindow],
558 NSStringFromPoint([sender draggingLocation])];
559 [s appendFormat: @"\nPasteboard: %@ types:", draggingPasteboard];
560 while ( (type = [e nextObject]) != nil) {
561 if ([type hasPrefix: @"CorePasteboardFlavorType 0x"]) {
562 const char *osTypeHex = [[type substringFromIndex: [type rangeOfString: @"0x" options: NSBackwardsSearch].location] lossyCString];
563 OSType osType;
564 sscanf(osTypeHex, "%lx", &osType);
565 [s appendFormat: @" '%4s'", &osType];
566 } else {
567 [s appendFormat: @" '%@'", type];
568 }
569 }
570 return s;
571}
572
573- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender;
574{
575 if ([self acceptsDragFrom: sender] && [sender draggingSourceOperationMask] &
576 (NSDragOperationCopy | NSDragOperationLink)) {
577 dragAccepted = YES;
578 [self setNeedsDisplay: YES];
579 // NSLog(@"draggingEntered accept:\n%@", [self _descriptionForDraggingInfo: sender]);
580 return NSDragOperationLink;
581 }
582 return NSDragOperationNone;
583}
584
585- (void)draggingExited:(id <NSDraggingInfo>)sender;
586{
587 dragAccepted = NO;
588 [self setNeedsDisplay: YES];
589}
590
591- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender;
592{
593 dragAccepted = NO;
594 [self setNeedsDisplay: YES];
595 return [self acceptsDragFrom: sender];
596}
597
598- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender;
599{
600 if ([sender draggingSource] != self) {
601 NSURL *url = [NSURL URLFromPasteboard: [sender draggingPasteboard]];
602 if (url == nil) return NO;
603 [self _setPath: [url path]];
604 if ([self _validateWithPreview: YES]) {
605 [self selectItem: [self _itemForAlias: selectedAlias]];
606 }
607 }
608 return YES;
609}
610
611@end
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