Classes/NJMappingsController.m

   1 //
   2 //  NJMappingsController.m
   3 //  Enjoy
   4 //
   5 //  Created by Sam McCall on 4/05/09.
   6 //
   7
   8 #import "NJMappingsController.h"
   9
  10 #import "NJMapping.h"
  11 #import "NJMappingsController.h"
  12 #import "NJOutput.h"
  13 #import "NJEvents.h"
  14
  15 #define PB_ROW @"com.yukkurigames.Enjoyable.MappingRow"
  16
  17 @implementation NJMappingsController {
  18     NSMutableArray *_mappings;
  19     NJMapping *_manualMapping;
  20 }
  21
  22 - (id)init {
  23     if ((self = [super init])) {
  24         _mappings = [[NSMutableArray alloc] init];
  25         _currentMapping = [[NJMapping alloc] initWithName:@"(default)"];
  26         _manualMapping = _currentMapping;
  27         [_mappings addObject:_currentMapping];
  28     }
  29     return self;
  30 }
  31
  32 - (void)awakeFromNib {
  33     [tableView registerForDraggedTypes:@[PB_ROW, NSURLPboardType]];
  34     [tableView setDraggingSourceOperationMask:NSDragOperationCopy forLocal:NO];
  35 }
  36
  37 - (NJMapping *)objectForKeyedSubscript:(NSString *)name {
  38     for (NJMapping *mapping in _mappings)
  39         if ([name isEqualToString:mapping.name])
  40             return mapping;
  41     return nil;
  42 }
  43
  44 - (NJMapping *)objectAtIndexedSubscript:(NSUInteger)idx {
  45     return idx < _mappings.count ? _mappings[idx] : nil;
  46 }
  47
  48 - (void)mappingsChanged {
  49     [self save];
  50     [tableView reloadData];
  51     [self updateInterfaceForCurrentMapping];
  52     [NSNotificationCenter.defaultCenter
  53         postNotificationName:NJEventMappingListChanged
  54                       object:self
  55                     userInfo:@{ NJMappingListKey: _mappings,
  56                                 NJMappingKey: _currentMapping }];
  57 }
  58
  59 - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state
  60                                   objects:(__unsafe_unretained id [])buffer
  61                                     count:(NSUInteger)len {
  62     return [_mappings countByEnumeratingWithState:state
  63                                           objects:buffer
  64                                             count:len];
  65 }
  66
  67 - (void)activateMappingForProcess:(NSRunningApplication *)app {
  68     NJMapping *oldMapping = _manualMapping;
  69     NSArray *names = app.possibleMappingNames;
  70     BOOL found = NO;
  71     for (NSString *name in names) {
  72         NJMapping *mapping = self[name];
  73         if (mapping) {
  74             [self activateMapping:mapping];
  75             found = YES;
  76             break;
  77         }
  78     }
  79
  80     if (!found) {
  81         [self activateMapping:oldMapping];
  82         if ([oldMapping.name.lowercaseString isEqualToString:@"@application"]) {
  83             oldMapping.name = app.bestMappingName;
  84             [self mappingsChanged];
  85         }
  86     }
  87     _manualMapping = oldMapping;
  88 }
  89
  90 - (void)updateInterfaceForCurrentMapping {
  91     NSUInteger selected = [_mappings indexOfObject:_currentMapping];
  92     removeButton.enabled = selected != 0;
  93     moveUp.enabled = selected > 1;
  94     moveDown.enabled = selected && selected != _mappings.count - 1;
  95     popoverActivate.title = _currentMapping.name;
  96     [tableView selectRowIndexes:[NSIndexSet indexSetWithIndex:selected] byExtendingSelection:NO];
  97     [NSUserDefaults.standardUserDefaults setInteger:selected forKey:@"selected"];
  98 }
  99
 100 - (void)activateMapping:(NJMapping *)mapping {
 101     if (!mapping)
 102         mapping = _manualMapping;
 103     if (mapping == _currentMapping)
 104         return;
 105     NSLog(@"Switching to mapping %@.", mapping.name);
 106     _manualMapping = mapping;
 107     _currentMapping = mapping;
 108     [self updateInterfaceForCurrentMapping];
 109     [NSNotificationCenter.defaultCenter
 110          postNotificationName:NJEventMappingChanged
 111                        object:self
 112                      userInfo:@{ NJMappingKey : _currentMapping }];
 113 }
 114
 115 - (IBAction)addPressed:(id)sender {
 116     NJMapping *newMapping = [[NJMapping alloc] initWithName:@"Untitled"];
 117     [_mappings addObject:newMapping];
 118     [self activateMapping:newMapping];
 119     [self mappingsChanged];
 120     [tableView editColumn:0 row:_mappings.count - 1 withEvent:nil select:YES];
 121 }
 122
 123 - (IBAction)removePressed:(id)sender {
 124     if (tableView.selectedRow == 0)
 125         return;
 126
 127     NSInteger selectedRow = tableView.selectedRow;
 128     [_mappings removeObjectAtIndex:selectedRow];
 129     [self activateMapping:_mappings[MIN(selectedRow, _mappings.count - 1)]];
 130     [self mappingsChanged];
 131 }
 132
 133 - (void)tableViewSelectionDidChange:(NSNotification *)notify {
 134     [self activateMapping:self[tableView.selectedRow]];
 135 }
 136
 137 - (id)tableView:(NSTableView *)view objectValueForTableColumn:(NSTableColumn *)column row:(NSInteger)index {
 138     return self[index].name;
 139 }
 140
 141 - (void)tableView:(NSTableView *)view
 142    setObjectValue:(NSString *)obj
 143    forTableColumn:(NSTableColumn *)col
 144               row:(NSInteger)index {
 145     self[index].name = obj;
 146     [self mappingsChanged];
 147 }
 148
 149 - (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
 150     return _mappings.count;
 151 }
 152
 153 - (BOOL)tableView:(NSTableView *)view shouldEditTableColumn:(NSTableColumn *)column row:(NSInteger)index {
 154     return YES;
 155 }
 156
 157 - (void)save {
 158     NSLog(@"Saving mappings to defaults.");
 159     NSMutableArray *ary = [[NSMutableArray alloc] initWithCapacity:_mappings.count];
 160     for (NJMapping *mapping in _mappings)
 161         [ary addObject:[mapping serialize]];
 162     [NSUserDefaults.standardUserDefaults setObject:ary forKey:@"mappings"];
 163 }
 164
 165 - (void)load {
 166     NSUInteger selected = [NSUserDefaults.standardUserDefaults integerForKey:@"selected"];
 167     NSArray *mappings = [NSUserDefaults.standardUserDefaults arrayForKey:@"mappings"];
 168     [self loadAllFrom:mappings andActivate:selected];
 169 }
 170
 171 - (void)loadAllFrom:(NSArray *)storedMappings andActivate:(NSUInteger)selected {
 172     NSMutableArray* newMappings = [[NSMutableArray alloc] initWithCapacity:storedMappings.count];
 173
 174     // Requires two passes to deal with inter-mapping references. First make
 175     // an empty mapping for each serialized mapping. Then, deserialize the
 176     // data pointing to the empty mappings. Then merge that data back into
 177     // its equivalent empty one, which is the one we finally use.
 178     for (NSDictionary *storedMapping in storedMappings) {
 179         NJMapping *mapping = [[NJMapping alloc] initWithName:storedMapping[@"name"]];
 180         [newMappings addObject:mapping];
 181     }
 182
 183     for (unsigned i = 0; i < storedMappings.count; ++i) {
 184         NJMapping *realMapping = [[NJMapping alloc] initWithSerialization:storedMappings[i]
 185                                                                  mappings:newMappings];
 186         [newMappings[i] mergeEntriesFrom:realMapping];
 187     }
 188
 189     if (newMappings.count) {
 190         _mappings = newMappings;
 191         if (selected >= newMappings.count)
 192             selected = 0;
 193         [self activateMapping:_mappings[selected]];
 194         [self mappingsChanged];
 195     }
 196 }
 197
 198 - (void)addMappingWithContentsOfURL:(NSURL *)url {
 199     NSWindow *window = popoverActivate.window;
 200     NSError *error;
 201     NJMapping *mapping = [NJMapping mappingWithContentsOfURL:url
 202                                                     mappings:_mappings
 203                                                        error:&error];
 204
 205     if (mapping && !error) {
 206         NJMapping *mergeInto = self[mapping.name];
 207         BOOL conflict = [mergeInto hasConflictWith:mapping];
 208
 209         if (conflict) {
 210             NSAlert *conflictAlert = [[NSAlert alloc] init];
 211             conflictAlert.messageText = @"Replace existing mappings?";
 212             conflictAlert.informativeText =
 213             [NSString stringWithFormat:
 214              @"This file contains inputs you've already mapped in \"%@\". Do you "
 215              @"want to merge them and replace your existing mappings, or import this "
 216              @"as a separate mapping?", mapping.name];
 217             [conflictAlert addButtonWithTitle:@"Merge"];
 218             [conflictAlert addButtonWithTitle:@"Cancel"];
 219             [conflictAlert addButtonWithTitle:@"New Mapping"];
 220             NSInteger res = [conflictAlert runModal];
 221             if (res == NSAlertSecondButtonReturn)
 222                 return;
 223             else if (res == NSAlertThirdButtonReturn)
 224                 mergeInto = nil;
 225         }
 226
 227         if (mergeInto) {
 228             [mergeInto mergeEntriesFrom:mapping];
 229             mapping = mergeInto;
 230         } else {
 231             [_mappings addObject:mapping];
 232         }
 233
 234         [self activateMapping:mapping];
 235         [self mappingsChanged];
 236
 237         if (conflict && !mergeInto) {
 238             [tableView selectRowIndexes:[NSIndexSet indexSetWithIndex:_mappings.count - 1] byExtendingSelection:NO];
 239             [tableView editColumn:0 row:_mappings.count - 1 withEvent:nil select:YES];
 240         }
 241     }
 242
 243     if (error) {
 244         [window presentError:error
 245               modalForWindow:window
 246                     delegate:nil
 247           didPresentSelector:nil
 248                  contextInfo:nil];
 249     }
 250 }
 251
 252 - (void)importPressed:(id)sender {
 253     NSOpenPanel *panel = [NSOpenPanel openPanel];
 254     panel.allowedFileTypes = @[ @"enjoyable", @"json", @"txt" ];
 255     NSWindow *window = NSApplication.sharedApplication.keyWindow;
 256     [panel beginSheetModalForWindow:window
 257                   completionHandler:^(NSInteger result) {
 258                       if (result != NSFileHandlingPanelOKButton)
 259                           return;
 260                       [panel close];
 261                       [self addMappingWithContentsOfURL:panel.URL];
 262                   }];
 263
 264 }
 265
 266 - (void)exportPressed:(id)sender {
 267     NSSavePanel *panel = [NSSavePanel savePanel];
 268     panel.allowedFileTypes = @[ @"enjoyable" ];
 269     NJMapping *mapping = _currentMapping;
 270     panel.nameFieldStringValue = [mapping.name stringByFixingPathComponent];
 271     NSWindow *window = NSApplication.sharedApplication.keyWindow;
 272     [panel beginSheetModalForWindow:window
 273                   completionHandler:^(NSInteger result) {
 274                       if (result != NSFileHandlingPanelOKButton)
 275                           return;
 276                       [panel close];
 277                       NSError *error;
 278                       [mapping writeToURL:panel.URL error:&error];
 279                       if (error) {
 280                           [window presentError:error
 281                                 modalForWindow:window
 282                                       delegate:nil
 283                             didPresentSelector:nil
 284                                    contextInfo:nil];
 285                       }
 286                   }];
 287 }
 288
 289 - (IBAction)mappingPressed:(id)sender {
 290     [popover showRelativeToRect:popoverActivate.bounds
 291                          ofView:popoverActivate
 292                   preferredEdge:NSMinXEdge];
 293 }
 294
 295 - (void)popoverWillShow:(NSNotification *)notification {
 296     popoverActivate.state = NSOnState;
 297 }
 298
 299 - (void)popoverWillClose:(NSNotification *)notification {
 300     popoverActivate.state = NSOffState;
 301 }
 302
 303 - (IBAction)moveUpPressed:(id)sender {
 304     if ([_mappings moveFirstwards:_currentMapping upTo:1])
 305         [self mappingsChanged];
 306 }
 307
 308 - (IBAction)moveDownPressed:(id)sender {
 309     if ([_mappings moveLastwards:_currentMapping])
 310         [self mappingsChanged];
 311 }
 312
 313 - (BOOL)tableView:(NSTableView *)tableView_
 314        acceptDrop:(id <NSDraggingInfo>)info
 315               row:(NSInteger)row
 316     dropOperation:(NSTableViewDropOperation)dropOperation {
 317     NSPasteboard *pboard = [info draggingPasteboard];
 318     if ([pboard.types containsObject:PB_ROW]) {
 319         NSString *value = [pboard stringForType:PB_ROW];
 320         NSUInteger srcRow = [value intValue];
 321         [_mappings moveObjectAtIndex:srcRow toIndex:row];
 322         [self mappingsChanged];
 323         return YES;
 324     } else if ([pboard.types containsObject:NSURLPboardType]) {
 325         NSURL *url = [NSURL URLFromPasteboard:pboard];
 326         NSError *error;
 327         NJMapping *mapping = [NJMapping mappingWithContentsOfURL:url
 328                                                         mappings:_mappings
 329                                                            error:&error];
 330         if (error) {
 331             [tableView_ presentError:error];
 332             return NO;
 333         } else {
 334             [_mappings insertObject:mapping atIndex:row];
 335             [self mappingsChanged];
 336             return YES;
 337         }
 338     } else {
 339         return NO;
 340     }
 341 }
 342
 343 - (NSDragOperation)tableView:(NSTableView *)tableView_
 344                 validateDrop:(id <NSDraggingInfo>)info
 345                  proposedRow:(NSInteger)row
 346        proposedDropOperation:(NSTableViewDropOperation)dropOperation {
 347     NSPasteboard *pboard = [info draggingPasteboard];
 348     if ([pboard.types containsObject:PB_ROW]) {
 349         [tableView_ setDropRow:MAX(1, row) dropOperation:NSTableViewDropAbove];
 350         return NSDragOperationMove;
 351     } else if ([pboard.types containsObject:NSURLPboardType]) {
 352         NSURL *url = [NSURL URLFromPasteboard:pboard];
 353         if ([url.pathExtension isEqualToString:@"enjoyable"]) {
 354             [tableView_ setDropRow:MAX(1, row) dropOperation:NSTableViewDropAbove];
 355             return NSDragOperationCopy;
 356         } else {
 357             return NSDragOperationNone;
 358         }
 359     } else {
 360         return NSDragOperationNone;
 361     }
 362 }
 363
 364 - (NSArray *)tableView:(NSTableView *)tableView_
 365 namesOfPromisedFilesDroppedAtDestination:(NSURL *)dropDestination
 366 forDraggedRowsWithIndexes:(NSIndexSet *)indexSet {
 367     NJMapping *toSave = self[indexSet.firstIndex];
 368     NSString *filename = [[toSave.name stringByFixingPathComponent]
 369                           stringByAppendingPathExtension:@"enjoyable"];
 370     NSURL *dst = [dropDestination URLByAppendingPathComponent:filename];
 371     dst = [NSFileManager.defaultManager generateUniqueURLWithBase:dst];
 372     NSError *error;
 373     if (![toSave writeToURL:dst error:&error]) {
 374         [tableView_ presentError:error];
 375         return @[];
 376     } else {
 377         return @[dst.lastPathComponent];
 378     }
 379 }
 380
 381 - (BOOL)tableView:(NSTableView *)tableView_
 382 writeRowsWithIndexes:(NSIndexSet *)rowIndexes
 383      toPasteboard:(NSPasteboard *)pboard {
 384     if (rowIndexes.count == 1 && rowIndexes.firstIndex != 0) {
 385         [pboard declareTypes:@[PB_ROW, NSFilesPromisePboardType] owner:nil];
 386         [pboard setString:@(rowIndexes.firstIndex).stringValue forType:PB_ROW];
 387         [pboard setPropertyList:@[@"enjoyable"] forType:NSFilesPromisePboardType];
 388         return YES;
 389     } else if (rowIndexes.count == 1 && rowIndexes.firstIndex == 0) {
 390         [pboard declareTypes:@[NSFilesPromisePboardType] owner:nil];
 391         [pboard setPropertyList:@[@"enjoyable"] forType:NSFilesPromisePboardType];
 392         return YES;
 393     } else {
 394         return NO;
 395     }
 396 }
 397
 398 @end