1 /* vi:set ts=8 sts=4 sw=4 ft=objc:
3 * VIM - Vi IMproved by Bram Moolenaar
4 * MacVim GUI port by Bjorn Winckler
6 * Do ":help uganda" in Vim to read copying and usage conditions.
7 * Do ":help credits" in Vim to see a list of people who contributed.
8 * See README.txt for an overview of the Vim source code.
13 * Contains code shared between the different text renderers. Unfortunately it
14 * is not possible to let the text renderers inherit from this class since
15 * MMTextView needs to inherit from NSTextView whereas MMAtsuiTextView needs to
16 * inherit from NSView.
19 #import "MMTextView.h"
20 #import "MMTextViewHelper.h"
21 #import "MMVimController.h"
22 #import "MMWindowController.h"
23 #import "Miscellaneous.h"
26 static char MMKeypadEnter[2] = { 'K', 'A' };
27 static NSString *MMKeypadEnterString = @"KA";
29 // The max/min drag timer interval in seconds
30 static NSTimeInterval MMDragTimerMaxInterval = 0.3;
31 static NSTimeInterval MMDragTimerMinInterval = 0.01;
33 // The number of pixels in which the drag timer interval changes
34 static float MMDragAreaSize = 73.0f;
37 @interface MMTextViewHelper (Private)
38 - (MMWindowController *)windowController;
39 - (MMVimController *)vimController;
40 - (void)dispatchKeyEvent:(NSEvent *)event;
41 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags
42 isARepeat:(BOOL)isARepeat;
44 - (void)hideMouseCursor;
45 - (void)startDragTimerWithInterval:(NSTimeInterval)t;
46 - (void)dragTimerFired:(NSTimer *)timer;
48 - (NSRect)trackingRect;
52 @implementation MMTextViewHelper
58 [insertionPointColor release]; insertionPointColor = nil;
59 [markedText release]; markedText = nil;
60 [markedTextAttributes release]; markedTextAttributes = nil;
65 - (void)setTextView:(id)view
67 // Only keep a weak reference to owning text view.
71 - (void)setInsertionPointColor:(NSColor *)color
73 if (color != insertionPointColor) {
74 [insertionPointColor release];
75 insertionPointColor = [color retain];
79 - (NSColor *)insertionPointColor
81 return insertionPointColor;
84 - (void)keyDown:(NSEvent *)event
86 //ASLogDebug(@"%@", event);
87 // HACK! If control modifier is held, don't pass the event along to
88 // interpretKeyEvents: since some keys are bound to multiple commands which
89 // means doCommandBySelector: is called several times. Do the same for
90 // Alt+Function key presses (Alt+Up and Alt+Down are bound to two
91 // commands). This hack may break input management, but unless we can
92 // figure out a way to disable key bindings there seems little else to do.
94 // TODO: Figure out a way to disable Cocoa key bindings entirely, without
95 // affecting input management.
100 // When the Input Method is activated, some special key inputs
101 // should be treated as key inputs for Input Method.
102 if ([textView hasMarkedText]) {
103 [textView interpretKeyEvents:[NSArray arrayWithObject:event]];
104 [textView setNeedsDisplay:YES];
108 int flags = [event modifierFlags];
109 if ((flags & NSControlKeyMask) ||
110 ((flags & NSAlternateKeyMask) && (flags & NSFunctionKeyMask))) {
111 BOOL unmodIsPrintable = YES;
112 NSString *unmod = [event charactersIgnoringModifiers];
113 if (unmod && [unmod length] > 0 && [unmod characterAtIndex:0] < 0x20)
114 unmodIsPrintable = NO;
116 NSString *chars = [event characters];
117 if ([chars length] == 1 && [chars characterAtIndex:0] < 0x20
118 && unmodIsPrintable) {
119 // HACK! Send unprintable characters (such as C-@, C-[, C-\, C-],
120 // C-^, C-_) as normal text to be added to the Vim input buffer.
121 // This must be done in order for the backend to be able to
122 // separate e.g. Ctrl-i and Ctrl-tab.
123 [self insertText:chars];
125 [self dispatchKeyEvent:event];
127 } else if ((flags & NSAlternateKeyMask) &&
128 [[[[self vimController] vimState] objectForKey:@"p_mmta"]
130 // If the 'macmeta' option is set, then send Alt+key presses directly
131 // to Vim without interpreting the key press.
132 NSString *unmod = [event charactersIgnoringModifiers];
133 int len = [unmod lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
134 const char *bytes = [unmod UTF8String];
136 [self sendKeyDown:bytes length:len modifiers:flags
137 isARepeat:[event isARepeat]];
139 [textView interpretKeyEvents:[NSArray arrayWithObject:event]];
143 - (void)insertText:(id)string
145 //ASLogDebug(@"%@", string);
146 // NOTE! This method is called for normal key presses but also for
147 // Option-key presses --- even when Ctrl is held as well as Option. When
148 // Ctrl is held, the AppKit translates the character to a Ctrl+key stroke,
149 // so 'string' need not be a printable character! In this case it still
150 // works to pass 'string' on to Vim as a printable character (since
151 // modifiers are already included and should not be added to the input
152 // buffer using CSI, K_MODIFIER).
154 if ([textView hasMarkedText]) {
155 [textView unmarkText];
158 NSEvent *event = [NSApp currentEvent];
160 // HACK! In order to be able to bind to <S-Space>, <S-M-Tab>, etc. we have
161 // to watch for them here.
162 if ([event type] == NSKeyDown
163 && [[event charactersIgnoringModifiers] length] > 0
164 && [event modifierFlags]
165 & (NSShiftKeyMask|NSControlKeyMask|NSAlternateKeyMask)) {
166 unichar c = [[event charactersIgnoringModifiers] characterAtIndex:0];
168 // <S-M-Tab> translates to 0x19
169 if (' ' == c || 0x19 == c) {
170 [self dispatchKeyEvent:event];
175 [self hideMouseCursor];
177 // NOTE: 'string' is either an NSString or an NSAttributedString. Since we
178 // do not support attributes, simply pass the corresponding NSString in the
180 if ([string isKindOfClass:[NSAttributedString class]])
181 string = [string string];
183 NSMutableData *data = [NSMutableData data];
184 int len = [string lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
185 int flags = [event modifierFlags] & 0xffff0000U;
186 if ([event type] == NSKeyDown && [event isARepeat])
189 [data appendBytes:&flags length:sizeof(int)];
190 [data appendBytes:&len length:sizeof(int)];
191 [data appendBytes:[string UTF8String] length:len];
193 [[self vimController] sendMessage:InsertTextMsgID data:data];
196 - (void)doCommandBySelector:(SEL)selector
198 //ASLogDebug(@"%@", NSStringFromSelector(selector));
199 // By ignoring the selector we effectively disable the key binding
200 // mechanism of Cocoa. Hopefully this is what the user will expect
201 // (pressing Ctrl+P would otherwise result in moveUp: instead of previous
204 // We usually end up here if the user pressed Ctrl+key (but not
207 NSEvent *event = [NSApp currentEvent];
209 if (selector == @selector(cancelOperation:)
210 || selector == @selector(insertNewline:)) {
211 // HACK! If there was marked text which got abandoned as a result of
212 // hitting escape or enter, then 'insertText:' is called with the
213 // abandoned text but '[event characters]' includes the abandoned text
214 // as well. Since 'dispatchKeyEvent:' looks at '[event characters]' we
215 // must intercept these keys here or the abandonded text gets inserted
217 NSString *key = [event charactersIgnoringModifiers];
218 const char *chars = [key UTF8String];
219 int len = [key lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
221 if (0x3 == chars[0]) {
222 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
223 // handle it separately (else Ctrl-C doesn't work).
224 len = sizeof(MMKeypadEnter)/sizeof(MMKeypadEnter[0]);
225 chars = MMKeypadEnter;
228 [self sendKeyDown:chars length:len modifiers:[event modifierFlags]
229 isARepeat:[event isARepeat]];
231 [self dispatchKeyEvent:event];
235 - (BOOL)performKeyEquivalent:(NSEvent *)event
237 //ASLogDebug(@"%@", event);
238 // Called for Cmd+key keystrokes, function keys, arrow keys, page
239 // up/down, home, end.
241 // NOTE: This message cannot be ignored since Cmd+letter keys never are
242 // passed to keyDown:. It seems as if the main menu consumes Cmd-key
243 // strokes, unless the key is a function key.
248 // NOTE: If the event that triggered this method represents a function key
249 // down then we do nothing, otherwise the input method never gets the key
250 // stroke (some input methods use e.g. arrow keys). The function key down
251 // event will still reach Vim though (via keyDown:). The exceptions to
252 // this rule are: PageUp/PageDown (keycode 116/121).
253 int flags = [event modifierFlags] & 0xffff0000U;
254 if ([event type] != NSKeyDown || flags & NSFunctionKeyMask
255 && !(116 == [event keyCode] || 121 == [event keyCode]))
258 // HACK! KeyCode 50 represent the key which switches between windows
259 // within an application (like Cmd+Tab is used to switch between
260 // applications). Return NO here, else the window switching does not work.
261 if ([event keyCode] == 50)
264 // HACK! Let the main menu try to handle any key down event, before
265 // passing it on to vim, otherwise key equivalents for menus will
266 // effectively be disabled.
267 if ([[NSApp mainMenu] performKeyEquivalent:event])
270 // HACK! On Leopard Ctrl-key events end up here instead of keyDown:.
271 if (flags & NSControlKeyMask) {
272 [self keyDown:event];
276 // HACK! Don't handle Cmd-? or the "Help" menu does not work on Leopard.
277 NSString *unmodchars = [event charactersIgnoringModifiers];
278 if ([unmodchars isEqual:@"?"])
281 // Cmd-. is hard-wired to send SIGINT unlike Ctrl-C which is just another
282 // key press which Vim has to interpret. This means that Cmd-. always
283 // works to interrupt a Vim process whereas Ctrl-C can suffer from problems
284 // such as dropped DO messages (or if Vim is stuck in a loop without
285 // checking for keyboard input).
286 if ((flags & NSDeviceIndependentModifierFlagsMask) == NSCommandKeyMask &&
287 [unmodchars isEqual:@"."]) {
288 kill([[self vimController] pid], SIGINT);
292 NSString *chars = [event characters];
293 int len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
294 NSMutableData *data = [NSMutableData data];
299 // If 'chars' and 'unmodchars' differs when shift flag is present, then we
300 // can clear the shift flag as it is already included in 'unmodchars'.
301 // Failing to clear the shift flag means <D-Bar> turns into <S-D-Bar> (on
302 // an English keyboard).
303 if (flags & NSShiftKeyMask && ![chars isEqual:unmodchars])
304 flags &= ~NSShiftKeyMask;
306 if (0x3 == [unmodchars characterAtIndex:0]) {
307 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
308 // handle it separately (else Cmd-enter turns into Ctrl-C).
309 unmodchars = MMKeypadEnterString;
310 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
313 if ([event isARepeat])
316 [data appendBytes:&flags length:sizeof(int)];
317 [data appendBytes:&len length:sizeof(int)];
318 [data appendBytes:[unmodchars UTF8String] length:len];
320 [[self vimController] sendMessage:CmdKeyMsgID data:data];
325 - (void)scrollWheel:(NSEvent *)event
327 if ([event deltaY] == 0)
331 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
332 if ([textView convertPoint:pt toRow:&row column:&col]) {
333 int flags = [event modifierFlags];
334 float dy = [event deltaY];
335 NSMutableData *data = [NSMutableData data];
337 [data appendBytes:&row length:sizeof(int)];
338 [data appendBytes:&col length:sizeof(int)];
339 [data appendBytes:&flags length:sizeof(int)];
340 [data appendBytes:&dy length:sizeof(float)];
342 [[self vimController] sendMessage:ScrollWheelMsgID data:data];
346 - (void)mouseDown:(NSEvent *)event
349 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
350 if (![textView convertPoint:pt toRow:&row column:&col])
353 int button = [event buttonNumber];
354 int flags = [event modifierFlags];
355 int count = [event clickCount];
356 NSMutableData *data = [NSMutableData data];
358 // If desired, intepret Ctrl-Click as a right mouse click.
359 BOOL translateCtrlClick = [[NSUserDefaults standardUserDefaults]
360 boolForKey:MMTranslateCtrlClickKey];
361 flags = flags & NSDeviceIndependentModifierFlagsMask;
362 if (translateCtrlClick && button == 0 &&
363 (flags == NSControlKeyMask ||
364 flags == (NSControlKeyMask|NSAlphaShiftKeyMask))) {
366 flags &= ~NSControlKeyMask;
369 [data appendBytes:&row length:sizeof(int)];
370 [data appendBytes:&col length:sizeof(int)];
371 [data appendBytes:&button length:sizeof(int)];
372 [data appendBytes:&flags length:sizeof(int)];
373 [data appendBytes:&count length:sizeof(int)];
375 [[self vimController] sendMessage:MouseDownMsgID data:data];
378 - (void)mouseUp:(NSEvent *)event
381 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
382 if (![textView convertPoint:pt toRow:&row column:&col])
385 int flags = [event modifierFlags];
386 NSMutableData *data = [NSMutableData data];
388 [data appendBytes:&row length:sizeof(int)];
389 [data appendBytes:&col length:sizeof(int)];
390 [data appendBytes:&flags length:sizeof(int)];
392 [[self vimController] sendMessage:MouseUpMsgID data:data];
397 - (void)mouseDragged:(NSEvent *)event
399 int flags = [event modifierFlags];
401 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
402 if (![textView convertPoint:pt toRow:&row column:&col])
405 // Autoscrolling is done in dragTimerFired:
406 if (!isAutoscrolling) {
407 NSMutableData *data = [NSMutableData data];
409 [data appendBytes:&row length:sizeof(int)];
410 [data appendBytes:&col length:sizeof(int)];
411 [data appendBytes:&flags length:sizeof(int)];
413 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
422 [self startDragTimerWithInterval:.5];
427 - (void)mouseMoved:(NSEvent *)event
429 // HACK! NSTextView has a nasty habit of resetting the cursor to the
430 // default I-beam cursor at random moments. The only reliable way we know
431 // of to work around this is to set the cursor each time the mouse moves.
434 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
436 if (![textView convertPoint:pt toRow:&row column:&col])
439 // HACK! It seems impossible to get the tracking rects set up before the
440 // view is visible, which means that the first mouseEntered: or
441 // mouseExited: events are never received. This forces us to check if the
442 // mouseMoved: event really happened over the text.
444 [textView getMaxRows:&rows columns:&cols];
445 if (row >= 0 && row < rows && col >= 0 && col < cols) {
446 NSMutableData *data = [NSMutableData data];
448 [data appendBytes:&row length:sizeof(int)];
449 [data appendBytes:&col length:sizeof(int)];
451 [[self vimController] sendMessage:MouseMovedMsgID data:data];
455 - (void)mouseEntered:(NSEvent *)event
457 // NOTE: This event is received even when the window is not key; thus we
458 // have to take care not to enable mouse moved events unless our window is
460 if ([[textView window] isKeyWindow]) {
461 [[textView window] setAcceptsMouseMovedEvents:YES];
465 - (void)mouseExited:(NSEvent *)event
467 [[textView window] setAcceptsMouseMovedEvents:NO];
469 // NOTE: This event is received even when the window is not key; if the
470 // mouse shape is set when our window is not key, the hollow (unfocused)
471 // cursor will become a block (focused) cursor.
472 if ([[textView window] isKeyWindow]) {
474 NSMutableData *data = [NSMutableData data];
475 [data appendBytes:&shape length:sizeof(int)];
476 [[self vimController] sendMessage:SetMouseShapeMsgID data:data];
480 - (void)setFrame:(NSRect)frame
482 // When the frame changes we also need to update the tracking rect.
483 [textView removeTrackingRect:trackingRectTag];
484 trackingRectTag = [textView addTrackingRect:[self trackingRect]
490 - (void)viewDidMoveToWindow
492 // Set a tracking rect which covers the text.
493 // NOTE: While the mouse cursor is in this rect the view will receive
494 // 'mouseMoved:' events so that Vim can take care of updating the mouse
496 if ([textView window]) {
497 [[textView window] setAcceptsMouseMovedEvents:YES];
498 trackingRectTag = [textView addTrackingRect:[self trackingRect]
505 - (void)viewWillMoveToWindow:(NSWindow *)newWindow
507 // Remove tracking rect if view moves or is removed.
508 if ([textView window] && trackingRectTag) {
509 [textView removeTrackingRect:trackingRectTag];
514 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
516 NSPasteboard *pboard = [sender draggingPasteboard];
518 if ([[pboard types] containsObject:NSStringPboardType]) {
519 NSString *string = [pboard stringForType:NSStringPboardType];
520 [[self vimController] dropString:string];
522 } else if ([[pboard types] containsObject:NSFilenamesPboardType]) {
523 NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
524 [[self vimController] dropFiles:files forceOpen:NO];
531 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
533 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
534 NSPasteboard *pboard = [sender draggingPasteboard];
536 if ( [[pboard types] containsObject:NSFilenamesPboardType]
537 && (sourceDragMask & NSDragOperationCopy) )
538 return NSDragOperationCopy;
539 if ( [[pboard types] containsObject:NSStringPboardType]
540 && (sourceDragMask & NSDragOperationCopy) )
541 return NSDragOperationCopy;
543 return NSDragOperationNone;
546 - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
548 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
549 NSPasteboard *pboard = [sender draggingPasteboard];
551 if ( [[pboard types] containsObject:NSFilenamesPboardType]
552 && (sourceDragMask & NSDragOperationCopy) )
553 return NSDragOperationCopy;
554 if ( [[pboard types] containsObject:NSStringPboardType]
555 && (sourceDragMask & NSDragOperationCopy) )
556 return NSDragOperationCopy;
558 return NSDragOperationNone;
561 - (void)setMouseShape:(int)shape
567 - (void)changeFont:(id)sender
569 NSFont *newFont = [sender convertFont:[textView font]];
570 NSFont *newFontWide = [sender convertFont:[textView fontWide]];
573 NSString *name = [newFont displayName];
574 NSString *wideName = [newFontWide displayName];
575 unsigned len = [name lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
576 unsigned wideLen = [wideName lengthOfBytesUsingEncoding:
577 NSUTF8StringEncoding];
579 NSMutableData *data = [NSMutableData data];
580 float pointSize = [newFont pointSize];
582 [data appendBytes:&pointSize length:sizeof(float)];
584 ++len; // include NUL byte
585 [data appendBytes:&len length:sizeof(unsigned)];
586 [data appendBytes:[name UTF8String] length:len];
589 ++wideLen; // include NUL byte
590 [data appendBytes:&wideLen length:sizeof(unsigned)];
591 [data appendBytes:[wideName UTF8String] length:wideLen];
593 [data appendBytes:&wideLen length:sizeof(unsigned)];
596 [[self vimController] sendMessage:SetFontMsgID data:data];
601 - (BOOL)hasMarkedText
603 return markedRange.length > 0 ? YES : NO;
606 - (NSRange)markedRange
608 if ([self hasMarkedText])
611 return NSMakeRange(NSNotFound, 0);
614 - (NSDictionary *)markedTextAttributes
616 return markedTextAttributes;
619 - (void)setMarkedTextAttributes:(NSDictionary *)attr
621 if (attr != markedTextAttributes) {
622 [markedTextAttributes release];
623 markedTextAttributes = [attr retain];
627 - (void)setMarkedText:(id)text selectedRange:(NSRange)range
631 if (!(text && [text length] > 0))
634 // HACK! Determine if the marked text is wide or normal width. This seems
635 // to always use 'wide' when there are both wide and normal width
637 NSString *string = text;
638 NSFont *theFont = [textView font];
639 if ([text isKindOfClass:[NSAttributedString class]]) {
640 theFont = [textView fontWide];
641 string = [text string];
644 // TODO: Use special colors for marked text.
645 [self setMarkedTextAttributes:
646 [NSDictionary dictionaryWithObjectsAndKeys:
647 theFont, NSFontAttributeName,
648 [textView defaultBackgroundColor], NSBackgroundColorAttributeName,
649 [textView defaultForegroundColor], NSForegroundColorAttributeName,
652 markedText = [[NSMutableAttributedString alloc]
653 initWithString:string
654 attributes:[self markedTextAttributes]];
656 markedRange = NSMakeRange(0, [markedText length]);
657 if (markedRange.length) {
658 [markedText addAttribute:NSUnderlineStyleAttributeName
659 value:[NSNumber numberWithInt:1]
664 [markedText addAttribute:NSUnderlineStyleAttributeName
665 value:[NSNumber numberWithInt:2]
669 [textView setNeedsDisplay:YES];
674 imRange = NSMakeRange(0, 0);
675 markedRange = NSMakeRange(NSNotFound, 0);
676 [markedText release];
680 - (NSMutableAttributedString *)markedText
685 - (void)setPreEditRow:(int)row column:(int)col
698 return preEditColumn;
701 - (void)setImRange:(NSRange)range
711 - (void)setMarkedRange:(NSRange)range
716 - (NSRect)firstRectForCharacterRange:(NSRange)range
718 // This method is called when the input manager wants to pop up an
719 // auxiliary window. The position where this should be is controlled by
720 // Vim by sending SetPreEditPositionMsgID so compute a position based on
721 // the pre-edit (row,column) pair.
722 int col = preEditColumn;
723 int row = preEditRow + 1;
725 NSFont *theFont = [[textView markedTextAttributes]
726 valueForKey:NSFontAttributeName];
727 if (theFont == [textView fontWide]) {
728 col += imRange.location * 2;
729 if (col >= [textView maxColumns] - 1) {
730 row += (col / [textView maxColumns]);
731 col = col % 2 ? col % [textView maxColumns] + 1 :
732 col % [textView maxColumns];
735 col += imRange.location;
736 if (col >= [textView maxColumns]) {
737 row += (col / [textView maxColumns]);
738 col = col % [textView maxColumns];
742 NSRect rect = [textView rectForRow:row
745 numColumns:range.length];
747 rect.origin = [textView convertPoint:rect.origin toView:nil];
748 rect.origin = [[textView window] convertBaseToScreen:rect.origin];
753 - (void)setImControl:(BOOL)enable
755 // This flag corresponds to the (negation of the) 'imd' option. When
756 // enabled changes to the input method are detected and forwarded to the
761 @end // MMTextViewHelper
766 @implementation MMTextViewHelper (Private)
768 - (MMWindowController *)windowController
770 id windowController = [[textView window] windowController];
771 if ([windowController isKindOfClass:[MMWindowController class]])
772 return (MMWindowController*)windowController;
776 - (MMVimController *)vimController
778 return [[self windowController] vimController];
781 - (void)dispatchKeyEvent:(NSEvent *)event
783 // Only handle the command if it came from a keyDown event
784 if ([event type] != NSKeyDown)
787 NSString *chars = [event characters];
788 NSString *unmodchars = [event charactersIgnoringModifiers];
789 unichar c = [chars characterAtIndex:0];
790 unichar imc = [unmodchars length] > 0 ? [unmodchars characterAtIndex:0] : 0;
792 const char *bytes = 0;
793 int mods = [event modifierFlags];
795 //ASLogDebug(@"chars[0]=0x%x unmodchars[0]=0x%x (chars=%@ unmodchars=%@)",
796 // c, imc, chars, unmodchars);
798 if (' ' == imc && 0xa0 != c) {
799 // HACK! The AppKit turns <C-Space> into <C-@> which is not standard
800 // Vim behaviour, so bypass this problem. (0xa0 is <M-Space>, which
801 // should be passed on as is.)
802 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
803 bytes = [unmodchars UTF8String];
804 } else if (imc == c && '2' == c) {
805 // HACK! Translate Ctrl+2 to <C-@>.
806 static char ctrl_at = 0;
807 len = 1; bytes = &ctrl_at;
808 } else if (imc == c && '6' == c) {
809 // HACK! Translate Ctrl+6 to <C-^>.
810 static char ctrl_hat = 0x1e;
811 len = 1; bytes = &ctrl_hat;
812 } else if (c == 0x19 && imc == 0x19) {
813 // HACK! AppKit turns back tab into Ctrl-Y, so we need to handle it
814 // separately (else Ctrl-Y doesn't work).
815 static char tab = 0x9;
816 len = 1; bytes = &tab; mods |= NSShiftKeyMask;
818 len = [chars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
819 bytes = [chars UTF8String];
822 [self sendKeyDown:bytes length:len modifiers:mods
823 isARepeat:[event isARepeat]];
826 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags
827 isARepeat:(BOOL)isARepeat
829 if (chars && len > 0) {
830 NSMutableData *data = [NSMutableData data];
832 // The low 16 bits are not used for modifier flags by NSEvent. Use
833 // these bits for custom flags.
838 [data appendBytes:&flags length:sizeof(int)];
839 [data appendBytes:&len length:sizeof(int)];
840 [data appendBytes:chars length:len];
842 [self hideMouseCursor];
844 //ASLogDebug(@"len=%d chars=0x%x", len, chars[0]);
845 [[self vimController] sendMessage:KeyDownMsgID data:data];
851 // IM is active whenever the current script is the system script and the
852 // system script isn't roman. (Hence IM can only be active when using
853 // non-roman scripts.)
855 // NOTE: The IM code is delegated to the frontend since calling it in the
856 // backend caused weird bugs (second dock icon appearing etc.).
857 SInt32 currentScript = GetScriptManagerVariable(smKeyScript);
858 SInt32 systemScript = GetScriptManagerVariable(smSysScript);
859 BOOL state = currentScript != smRoman && currentScript == systemScript;
860 if (imState != state) {
862 int msgid = state ? ActivatedImMsgID : DeactivatedImMsgID;
863 [[self vimController] sendMessage:msgid data:nil];
867 - (void)hideMouseCursor
869 // Check 'mousehide' option
870 id mh = [[[self vimController] vimState] objectForKey:@"p_mh"];
871 if (mh && ![mh boolValue])
872 [NSCursor setHiddenUntilMouseMoves:NO];
874 [NSCursor setHiddenUntilMouseMoves:YES];
877 - (void)startDragTimerWithInterval:(NSTimeInterval)t
879 [NSTimer scheduledTimerWithTimeInterval:t target:self
880 selector:@selector(dragTimerFired:)
881 userInfo:nil repeats:NO];
884 - (void)dragTimerFired:(NSTimer *)timer
886 // TODO: Autoscroll in horizontal direction?
887 static unsigned tick = 1;
889 isAutoscrolling = NO;
891 if (isDragging && (dragRow < 0 || dragRow >= [textView maxRows])) {
892 // HACK! If the mouse cursor is outside the text area, then send a
893 // dragged event. However, if row&col hasn't changed since the last
894 // dragged event, Vim won't do anything (see gui_send_mouse_event()).
895 // Thus we fiddle with the column to make sure something happens.
896 int col = dragColumn + (dragRow < 0 ? -(tick % 2) : +(tick % 2));
897 NSMutableData *data = [NSMutableData data];
899 [data appendBytes:&dragRow length:sizeof(int)];
900 [data appendBytes:&col length:sizeof(int)];
901 [data appendBytes:&dragFlags length:sizeof(int)];
903 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
905 isAutoscrolling = YES;
909 // Compute timer interval depending on how far away the mouse cursor is
910 // from the text view.
911 NSRect rect = [self trackingRect];
913 if (dragPoint.y < rect.origin.y) dy = rect.origin.y - dragPoint.y;
914 else if (dragPoint.y > NSMaxY(rect)) dy = dragPoint.y - NSMaxY(rect);
915 if (dy > MMDragAreaSize) dy = MMDragAreaSize;
917 NSTimeInterval t = MMDragTimerMaxInterval -
918 dy*(MMDragTimerMaxInterval-MMDragTimerMinInterval)/MMDragAreaSize;
920 [self startDragTimerWithInterval:t];
928 static NSCursor *customIbeamCursor = nil;
930 if (!customIbeamCursor) {
931 // Use a custom Ibeam cursor that has better contrast against dark
933 // TODO: Is the hotspot ok?
934 NSImage *ibeamImage = [NSImage imageNamed:@"ibeam"];
936 NSSize size = [ibeamImage size];
937 NSPoint hotSpot = { size.width*.5f, size.height*.5f };
939 customIbeamCursor = [[NSCursor alloc]
940 initWithImage:ibeamImage hotSpot:hotSpot];
942 if (!customIbeamCursor) {
943 ASLogWarn(@"Failed to load custom Ibeam cursor");
944 customIbeamCursor = [NSCursor IBeamCursor];
948 // This switch should match mshape_names[] in misc2.c.
950 // TODO: Add missing cursor shapes.
951 switch (mouseShape) {
952 case 2: [customIbeamCursor set]; break;
953 case 3: case 4: [[NSCursor resizeUpDownCursor] set]; break;
954 case 5: case 6: [[NSCursor resizeLeftRightCursor] set]; break;
955 case 9: [[NSCursor crosshairCursor] set]; break;
956 case 10: [[NSCursor pointingHandCursor] set]; break;
957 case 11: [[NSCursor openHandCursor] set]; break;
959 [[NSCursor arrowCursor] set]; break;
962 // Shape 1 indicates that the mouse cursor should be hidden.
964 [NSCursor setHiddenUntilMouseMoves:YES];
967 - (NSRect)trackingRect
969 NSRect rect = [textView frame];
970 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
971 int left = [ud integerForKey:MMTextInsetLeftKey];
972 int top = [ud integerForKey:MMTextInsetTopKey];
973 int right = [ud integerForKey:MMTextInsetRightKey];
974 int bot = [ud integerForKey:MMTextInsetBottomKey];
976 rect.origin.x = left;
978 rect.size.width -= left + right - 1;
979 rect.size.height -= top + bot - 1;
984 @end // MMTextViewHelper (Private)