-
-
Notifications
You must be signed in to change notification settings - Fork 892
/
TerminalView.m
611 lines (532 loc) · 23.3 KB
/
TerminalView.m
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
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
//
// TerminalView.m
// iSH
//
// Created by Theodore Dubois on 11/3/17.
//
#import "ScrollbarView.h"
#import "TerminalView.h"
#import "UserPreferences.h"
#import "UIApplication+OpenURL.h"
#import "NSObject+SaneKVO.h"
struct rowcol {
int row;
int col;
};
@interface WeakScriptMessageHandler : NSObject <WKScriptMessageHandler>
@property (weak) id <WKScriptMessageHandler> handler;
@end
@implementation WeakScriptMessageHandler
- (instancetype)initWithHandler:(id <WKScriptMessageHandler>)handler {
if (self = [super init]) {
self.handler = handler;
}
return self;
}
- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
[self.handler userContentController:userContentController didReceiveScriptMessage:message];
}
@end
@interface TerminalView ()
@property (nonatomic) NSMutableArray<UIKeyCommand *> *keyCommands;
@property ScrollbarView *scrollbarView;
@property (nonatomic) BOOL terminalFocused;
@property (nullable) NSString *markedText;
@property (nullable) NSString *selectedText;
@property UITextRange *markedRange;
@property UITextRange *selectedRange;
@property struct rowcol floatingCursor;
@property CGSize floatingCursorSensitivity;
@property CGSize actualFloatingCursorSensitivity;
@end
@implementation TerminalView
@synthesize inputDelegate;
@synthesize tokenizer;
@synthesize canBecomeFirstResponder;
- (void)awakeFromNib {
[super awakeFromNib];
self.inputAssistantItem.leadingBarButtonGroups = @[];
self.inputAssistantItem.trailingBarButtonGroups = @[];
ScrollbarView *scrollbarView = self.scrollbarView = [[ScrollbarView alloc] initWithFrame:self.bounds];
scrollbarView.delegate = self;
scrollbarView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
scrollbarView.bounces = NO;
[self addSubview:scrollbarView];
UserPreferences *prefs = UserPreferences.shared;
[prefs observe:@[@"capsLockMapping", @"optionMapping", @"backtickMapEscape", @"overrideControlSpace"]
options:0 owner:self usingBlock:^(typeof(self) self) {
dispatch_async(dispatch_get_main_queue(), ^{
self->_keyCommands = nil;
});
}];
[prefs observe:@[@"colorScheme", @"fontFamily", @"fontSize", @"theme", @"cursorStyle", @"blinkCursor"]
options:0 owner:self usingBlock:^(typeof(self) self) {
dispatch_async(dispatch_get_main_queue(), ^{
[self _updateStyle];
});
}];
self.markedRange = [UITextRange new];
self.selectedRange = [UITextRange new];
}
- (void)dealloc {
self.terminal = nil;
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context {
if (object == _terminal) {
if (_terminal.loaded) {
[self installTerminalView];
[self _updateStyle];
}
}
}
static NSString *const HANDLERS[] = {@"syncFocus", @"focus", @"newScrollHeight", @"newScrollTop", @"openLink"};
- (void)setTerminal:(Terminal *)terminal {
if (_terminal) {
[_terminal removeObserver:self forKeyPath:@"loaded"];
[self uninstallTerminalView];
}
_terminal = terminal;
[_terminal addObserver:self forKeyPath:@"loaded" options:NSKeyValueObservingOptionInitial context:nil];
if (_terminal.loaded)
[self installTerminalView];
}
- (void)installTerminalView {
NSAssert(_terminal.loaded, @"should probably not be installing a non-loaded terminal");
UIView *superview = self.terminal.webView.superview;
if (superview != nil) {
NSAssert(superview == self.scrollbarView, @"installing terminal that is already installed elsewhere");
return;
}
WKWebView *webView = _terminal.webView;
_terminal.enableVoiceOverAnnounce = YES;
webView.scrollView.scrollEnabled = NO;
webView.scrollView.delaysContentTouches = NO;
webView.scrollView.canCancelContentTouches = NO;
webView.scrollView.panGestureRecognizer.enabled = NO;
id <WKScriptMessageHandler> handler = [[WeakScriptMessageHandler alloc] initWithHandler:self];
for (int i = 0; i < sizeof(HANDLERS)/sizeof(HANDLERS[0]); i++) {
[webView.configuration.userContentController addScriptMessageHandler:handler name:HANDLERS[i]];
}
webView.frame = self.bounds;
self.opaque = webView.opaque = NO;
webView.backgroundColor = UIColor.clearColor;
webView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.scrollbarView.contentView = webView;
[self.scrollbarView addSubview:webView];
}
- (void)uninstallTerminalView {
// remove old terminal
UIView *superview = _terminal.webView.superview;
if (superview != self.scrollbarView) {
NSAssert(superview == nil, @"uninstalling terminal that is installed elsewhere");
return;
}
[_terminal.webView removeFromSuperview];
self.scrollbarView.contentView = nil;
for (int i = 0; i < sizeof(HANDLERS)/sizeof(HANDLERS[0]); i++) {
[_terminal.webView.configuration.userContentController removeScriptMessageHandlerForName:HANDLERS[i]];
}
_terminal.enableVoiceOverAnnounce = NO;
}
#pragma mark Styling
- (void)_updateStyle {
NSAssert(NSThread.isMainThread, @"This method needs to be called on the main thread");
if (!self.terminal.loaded)
return;
UserPreferences *prefs = [UserPreferences shared];
if (_overrideFontSize == prefs.fontSize.doubleValue)
_overrideFontSize = 0;
Palette *palette = prefs.palette;
if (self.overrideAppearance != OverrideAppearanceNone) {
palette = self.overrideAppearance == OverrideAppearanceLight ? prefs.theme.lightPalette : prefs.theme.darkPalette;
}
NSMutableDictionary<NSString *, id> *themeInfo = [@{
@"fontFamily": prefs.fontFamily,
@"fontSize": @(self.effectiveFontSize),
@"foregroundColor": palette.foregroundColor,
@"backgroundColor": palette.backgroundColor,
@"blinkCursor": @(prefs.blinkCursor),
@"cursorShape": prefs.htermCursorShape,
} mutableCopy];
if (prefs.palette.colorPaletteOverrides) {
themeInfo[@"colorPaletteOverrides"] = palette.colorPaletteOverrides;
}
NSString *json = [[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:themeInfo options:0 error:nil] encoding:NSUTF8StringEncoding];
[self.terminal.webView evaluateJavaScript:[NSString stringWithFormat:@"exports.updateStyle(%@)", json] completionHandler:^(id result, NSError *error){
[self updateFloatingCursorSensitivity];
}];
}
- (void)setOverrideFontSize:(CGFloat)overrideFontSize {
_overrideFontSize = overrideFontSize;
[self _updateStyle];
}
- (void)setOverrideAppearance:(enum OverrideAppearance)overrideAppearance {
_overrideAppearance = overrideAppearance;
[self _updateStyle];
}
- (CGFloat)effectiveFontSize {
if (self.overrideFontSize != 0)
return self.overrideFontSize;
return UserPreferences.shared.fontSize.doubleValue;
}
#pragma mark Focus and scrolling
- (void)setTerminalFocused:(BOOL)terminalFocused {
_terminalFocused = terminalFocused;
NSString *script = terminalFocused ? @"exports.setFocused(true)" : @"exports.setFocused(false)";
[self.terminal.webView evaluateJavaScript:script completionHandler:nil];
}
- (BOOL)becomeFirstResponder {
self.terminalFocused = YES;
[self reloadInputViews];
return [super becomeFirstResponder];
}
- (BOOL)resignFirstResponder {
self.terminalFocused = NO;
return [super resignFirstResponder];
}
- (void)windowDidBecomeKey:(NSNotification *)notif {
self.terminalFocused = YES;
}
- (void)windowDidResignKey:(NSNotification *)notif {
self.terminalFocused = NO;
}
- (IBAction)loseFocus:(id)sender {
[self resignFirstResponder];
}
- (void)willMoveToWindow:(UIWindow *)newWindow {
NSNotificationCenter *center = NSNotificationCenter.defaultCenter;
if (self.window != nil) {
[center removeObserver:self
name:UIWindowDidBecomeKeyNotification
object:self.window];
[center removeObserver:self
name:UIWindowDidResignKeyNotification
object:self.window];
}
if (newWindow != nil) {
[center addObserver:self
selector:@selector(windowDidBecomeKey:)
name:UIWindowDidBecomeKeyNotification
object:newWindow];
[center addObserver:self
selector:@selector(windowDidResignKey:)
name:UIWindowDidResignKeyNotification
object:newWindow];
}
}
- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
if ([message.name isEqualToString:@"syncFocus"]) {
self.terminalFocused = self.terminalFocused;
} else if ([message.name isEqualToString:@"focus"]) {
if (!self.isFirstResponder) {
[self becomeFirstResponder];
}
} else if ([message.name isEqualToString:@"newScrollHeight"]) {
self.scrollbarView.contentSize = CGSizeMake(0, [message.body doubleValue]);
} else if ([message.name isEqualToString:@"newScrollTop"]) {
CGFloat newOffset = [message.body doubleValue];
if (self.scrollbarView.contentOffset.y == newOffset)
return;
[self.scrollbarView setContentOffset:CGPointMake(0, newOffset) animated:NO];
} else if ([message.name isEqualToString:@"openLink"]) {
[UIApplication openURL:message.body];
}
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
[self.terminal.webView evaluateJavaScript:[NSString stringWithFormat:@"exports.newScrollTop(%f)", scrollView.contentOffset.y] completionHandler:nil];
}
- (void)setKeyboardAppearance:(UIKeyboardAppearance)keyboardAppearance {
BOOL needsFirstResponderDance = self.isFirstResponder && _keyboardAppearance != keyboardAppearance;
if (needsFirstResponderDance) {
[self resignFirstResponder];
}
_keyboardAppearance = keyboardAppearance;
if (needsFirstResponderDance) {
[self becomeFirstResponder];
}
if (keyboardAppearance == UIKeyboardAppearanceLight) {
self.scrollbarView.indicatorStyle = UIScrollViewIndicatorStyleBlack;
} else {
self.scrollbarView.indicatorStyle = UIScrollViewIndicatorStyleWhite;
}
}
#pragma mark Keyboard Input
// implementing these makes a keyboard pop up when this view is first responder
- (void)insertText:(NSString *)text {
self.markedText = nil;
if (self.controlKey.highlighted)
self.controlKey.selected = YES;
if (self.controlKey.selected) {
if (!self.controlKey.highlighted)
self.controlKey.selected = NO;
if (text.length == 1)
return [self insertControlChar:[text characterAtIndex:0]];
}
text = [text stringByReplacingOccurrencesOfString:@"\n" withString:@"\r"];
NSData *data = [text dataUsingEncoding:NSUTF8StringEncoding];
[self.terminal sendInput:data];
}
- (void)insertControlChar:(char)ch {
if (strchr(controlKeys, ch) != NULL) {
if (ch == ' ') ch = '\0';
if (ch == '2') ch = '@';
if (ch == '6') ch = '^';
if (ch != '\0')
ch = toupper(ch) ^ 0x40;
[self.terminal sendInput:[NSData dataWithBytes:&ch length:1]];
}
}
- (void)deleteBackward {
[self insertText:@"\x7f"];
}
- (BOOL)hasText {
return YES; // it's always ok to send a "delete"
}
#pragma mark IME Input and Selection
- (void)setMarkedText:(nullable NSString *)markedText selectedRange:(NSRange)selectedRange {
self.markedText = markedText;
}
- (void)unmarkText {
[self insertText:self.markedText];
}
- (UITextRange *)markedTextRange {
if (self.markedText != nil)
return self.markedRange;
return nil;
}
// The only reason to have this selected range is to prevent the "speak selection" context action from failing to get the current selection and falling back on calling copy:. It doesn't even have to work, it seems...
- (UITextRange *)selectedTextRange {
return self.selectedRange;
}
- (NSString *)textInRange:(UITextRange *)range {
if (range == self.markedRange)
return self.markedText;
if (range == self.selectedRange)
return @"";
return nil;
}
- (id)insertDictationResultPlaceholder {
return @"";
}
- (void)removeDictationResultPlaceholder:(id)placeholder willInsertResult:(BOOL)willInsertResult {
}
#pragma mark Keyboard Actions
- (void)paste:(id)sender {
NSString *string = UIPasteboard.generalPasteboard.string;
if (string) {
[self insertText:string];
}
}
- (void)copy:(id)sender {
[self.terminal.webView evaluateJavaScript:@"exports.copy()" completionHandler:nil];
}
- (void)clearScrollback:(UIKeyCommand *)command {
[self.terminal.webView evaluateJavaScript:@"exports.clearScrollback()" completionHandler:nil];
}
#pragma mark Floating cursor
- (void)updateFloatingCursorSensitivity {
[self.terminal.webView evaluateJavaScript:@"exports.getCharacterSize()" completionHandler:^(NSArray *charSizeRaw, NSError *error) {
if (error != nil) {
NSLog(@"error getting character size: %@", error);
return;
}
CGSize charSize = CGSizeMake([charSizeRaw[0] doubleValue], [charSizeRaw[1] doubleValue]);
double sensitivity = 0.5;
self.floatingCursorSensitivity = CGSizeMake(charSize.width / sensitivity, charSize.height / sensitivity);
}];
}
- (struct rowcol)rowcolFromPoint:(CGPoint)point {
CGSize sensitivity = self.actualFloatingCursorSensitivity;
return (struct rowcol) {
.row = (int) (-point.y / sensitivity.height),
.col = (int) (point.x / sensitivity.width),
};
}
- (void)beginFloatingCursorAtPoint:(CGPoint)point {
self.actualFloatingCursorSensitivity = self.floatingCursorSensitivity;
self.floatingCursor = [self rowcolFromPoint:point];
}
- (void)updateFloatingCursorAtPoint:(CGPoint)point {
struct rowcol newPos = [self rowcolFromPoint:point];
int rowDiff = newPos.row - self.floatingCursor.row;
int colDiff = newPos.col - self.floatingCursor.col;
NSMutableString *arrows = [NSMutableString string];
for (int i = 0; i < abs(rowDiff); i++) {
[arrows appendString:[self.terminal arrow:rowDiff > 0 ? 'A': 'B']];
}
for (int i = 0; i < abs(colDiff); i++) {
[arrows appendString:[self.terminal arrow:colDiff > 0 ? 'C': 'D']];
}
[self insertText:arrows];
self.floatingCursor = newPos;
}
- (void)endFloatingCursor {
self.floatingCursor = (struct rowcol) {};
}
#pragma mark Keyboard Traits
- (UITextSmartDashesType)smartDashesType API_AVAILABLE(ios(11)) {
return UITextSmartDashesTypeNo;
}
- (UITextSmartQuotesType)smartQuotesType API_AVAILABLE(ios(11)) {
return UITextSmartQuotesTypeNo;
}
- (UITextSmartInsertDeleteType)smartInsertDeleteType API_AVAILABLE(ios(11)) {
return UITextSmartInsertDeleteTypeNo;
}
- (UITextAutocapitalizationType)autocapitalizationType {
return UITextAutocapitalizationTypeNone;
}
- (UITextAutocorrectionType)autocorrectionType {
return UITextAutocorrectionTypeNo;
}
// Apparently required on iOS 15+: https://stackoverflow.com/a/72359764
- (UITextSpellCheckingType)spellCheckingType {
return UITextSpellCheckingTypeNo;
}
#pragma mark Hardware Keyboard
- (void)handleKeyCommand:(UIKeyCommand *)command {
NSString *key = command.input;
if (command.modifierFlags == 0) {
if ([key isEqualToString:@"`"] && UserPreferences.shared.backtickMapEscape)
key = UIKeyInputEscape;
if ([key isEqualToString:UIKeyInputEscape])
key = @"\x1b";
else if ([key isEqualToString:UIKeyInputUpArrow])
key = [self.terminal arrow:'A'];
else if ([key isEqualToString:UIKeyInputDownArrow])
key = [self.terminal arrow:'B'];
else if ([key isEqualToString:UIKeyInputLeftArrow])
key = [self.terminal arrow:'D'];
else if ([key isEqualToString:UIKeyInputRightArrow])
key = [self.terminal arrow:'C'];
[self insertText:key];
} else if (command.modifierFlags & UIKeyModifierShift) {
[self insertText:[key uppercaseString]];
} else if (command.modifierFlags & UIKeyModifierAlternate) {
[self insertText:[@"\x1b" stringByAppendingString:key]];
} else if (command.modifierFlags & UIKeyModifierAlphaShift) {
[self handleCapsLockWithCommand:command];
} else if (command.modifierFlags & UIKeyModifierControl || command.modifierFlags & UIKeyModifierAlphaShift) {
if (key.length == 0)
return;
if ([key isEqualToString:@"2"])
key = @"@";
else if ([key isEqualToString:@"6"])
key = @"^";
else if ([key isEqualToString:@"-"])
key = @"_";
[self insertControlChar:[key characterAtIndex:0]];
}
}
static const char *alphabet = "abcdefghijklmnopqrstuvwxyz";
static const char *controlKeys = "abcdefghijklmnopqrstuvwxyz@^26-=[]\\ ";
static const char *metaKeys = "abcdefghijklmnopqrstuvwxyz0123456789-=[]\\;',./";
- (NSArray<UIKeyCommand *> *)keyCommands {
if (_keyCommands != nil)
return _keyCommands;
_keyCommands = [NSMutableArray new];
[self addKeys:controlKeys withModifiers:UIKeyModifierControl];
for (NSString *specialKey in @[UIKeyInputEscape, UIKeyInputUpArrow, UIKeyInputDownArrow,
UIKeyInputLeftArrow, UIKeyInputRightArrow, @"\t"]) {
[self addKey:specialKey withModifiers:0];
}
if (UserPreferences.shared.capsLockMapping != CapsLockMapNone) {
if (@available(iOS 13, *)); else {
[self addKeys:controlKeys withModifiers:UIKeyModifierAlphaShift];
[self addKeys:alphabet withModifiers:0];
[self addKeys:alphabet withModifiers:UIKeyModifierShift];
[self addKey:@"" withModifiers:UIKeyModifierAlphaShift]; // otherwise tap of caps lock can switch layouts
}
}
if (UserPreferences.shared.optionMapping == OptionMapEsc) {
[self addKeys:metaKeys withModifiers:UIKeyModifierAlternate];
}
if (UserPreferences.shared.backtickMapEscape) {
[self addKey:@"`" withModifiers:0];
}
[_keyCommands addObject:[UIKeyCommand keyCommandWithInput:@"k"
modifierFlags:UIKeyModifierCommand|UIKeyModifierShift
action:@selector(clearScrollback:)
discoverabilityTitle:@"Clear Scrollback"]];
return _keyCommands;
}
- (void)addKeys:(const char *)keys withModifiers:(UIKeyModifierFlags)modifiers {
for (size_t i = 0; keys[i] != '\0'; i++) {
[self addKey:[NSString stringWithFormat:@"%c", keys[i]] withModifiers:modifiers];
}
}
- (void)addKey:(NSString *)key withModifiers:(UIKeyModifierFlags)modifiers {
UIKeyCommand *command = [UIKeyCommand keyCommandWithInput:key
modifierFlags:modifiers
action:@selector(handleKeyCommand:)];
if (@available(iOS 15, *)) {
command.wantsPriorityOverSystemBehavior = YES;
}
[_keyCommands addObject:command];
}
- (void)keyCommandTriggered:(UIKeyCommand *)sender {
dispatch_async(dispatch_get_main_queue(), ^{
[self handleKeyCommand:sender];
});
}
- (void)handleCapsLockWithCommand:(UIKeyCommand *)command {
CapsLockMapping target = UserPreferences.shared.capsLockMapping;
NSString *newInput = command.input ? command.input : @"";
UIKeyModifierFlags flags = command.modifierFlags;
flags ^= UIKeyModifierAlphaShift;
if(target == CapsLockMapEscape) {
newInput = UIKeyInputEscape;
} else if(target == CapsLockMapControl) {
if([newInput length] == 0) {
return;
}
flags |= UIKeyModifierControl;
} else {
return;
}
UIKeyCommand *newCommand = [UIKeyCommand keyCommandWithInput:newInput
modifierFlags:flags
action:@selector(keyCommandTriggered:)];
[self handleKeyCommand:newCommand];
}
- (void)pressesBegan:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event {
if (@available(iOS 13.4, *)) {
UIKey *key = presses.anyObject.key;
if (UserPreferences.shared.overrideControlSpace &&
key.keyCode == UIKeyboardHIDUsageKeyboardSpacebar &&
key.modifierFlags & UIKeyModifierControl) {
return [self insertControlChar:' '];
}
}
return [super pressesBegan:presses withEvent:event];
}
#pragma mark UITextInput stubs
#if 0
#define LogStub() NSLog(@"%s", __func__)
#else
#define LogStub()
#endif
- (NSWritingDirection)baseWritingDirectionForPosition:(nonnull UITextPosition *)position inDirection:(UITextStorageDirection)direction { LogStub(); return NSWritingDirectionLeftToRight; }
- (void)setBaseWritingDirection:(NSWritingDirection)writingDirection forRange:(nonnull UITextRange *)range { LogStub(); }
- (UITextPosition *)beginningOfDocument { LogStub(); return nil; }
- (CGRect)caretRectForPosition:(nonnull UITextPosition *)position { LogStub(); return CGRectZero; }
- (nullable UITextRange *)characterRangeAtPoint:(CGPoint)point { LogStub(); return nil; }
- (nullable UITextRange *)characterRangeByExtendingPosition:(nonnull UITextPosition *)position inDirection:(UITextLayoutDirection)direction { LogStub(); return nil; }
- (nullable UITextPosition *)closestPositionToPoint:(CGPoint)point { LogStub(); return nil; }
- (nullable UITextPosition *)closestPositionToPoint:(CGPoint)point withinRange:(nonnull UITextRange *)range { LogStub(); return nil; }
- (NSComparisonResult)comparePosition:(nonnull UITextPosition *)position toPosition:(nonnull UITextPosition *)other { LogStub(); return NSOrderedSame; }
- (UITextPosition *)endOfDocument { LogStub(); return nil; }
- (CGRect)firstRectForRange:(nonnull UITextRange *)range { LogStub(); return CGRectZero; }
- (NSDictionary<NSAttributedStringKey,id> *)markedTextStyle { LogStub(); return nil; }
- (void)setMarkedTextStyle:(NSDictionary<NSAttributedStringKey,id> *)markedTextStyle { LogStub(); }
- (NSInteger)offsetFromPosition:(nonnull UITextPosition *)from toPosition:(nonnull UITextPosition *)toPosition { LogStub(); return 0; }
- (nullable UITextPosition *)positionFromPosition:(nonnull UITextPosition *)position inDirection:(UITextLayoutDirection)direction offset:(NSInteger)offset { LogStub(); return nil; }
- (nullable UITextPosition *)positionFromPosition:(nonnull UITextPosition *)position offset:(NSInteger)offset { LogStub(); return nil; }
- (nullable UITextPosition *)positionWithinRange:(nonnull UITextRange *)range farthestInDirection:(UITextLayoutDirection)direction { LogStub(); return nil; }
- (void)replaceRange:(nonnull UITextRange *)range withText:(nonnull NSString *)text { LogStub(); }
- (void)setSelectedTextRange:(UITextRange *)selectedTextRange { LogStub(); }
- (nonnull NSArray<UITextSelectionRect *> *)selectionRectsForRange:(nonnull UITextRange *)range { LogStub(); return @[]; }
- (nullable UITextRange *)textRangeFromPosition:(nonnull UITextPosition *)fromPosition toPosition:(nonnull UITextPosition *)toPosition { LogStub(); return nil; }
// conforming to UITextInput makes this view default to being an accessibility element, which blocks selecting anything in it
- (BOOL)isAccessibilityElement { return NO; }
@end