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;
36 // Number of seconds to delay before sending scroll wheel events. (A delay of
37 // 0.05 seconds equals an update frequency of 20 Hz.)
38 static NSTimeInterval MMScrollWheelDelay = 0.05;
41 @interface MMTextViewHelper (Private)
42 - (MMWindowController *)windowController;
43 - (MMVimController *)vimController;
44 - (void)dispatchKeyEvent:(NSEvent *)event;
45 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags;
46 - (void)hideMouseCursor;
47 - (void)startDragTimerWithInterval:(NSTimeInterval)t;
48 - (void)dragTimerFired:(NSTimer *)timer;
50 - (NSRect)trackingRect;
51 - (void)handleScrollWheelEvent:(id)event;
55 @implementation MMTextViewHelper
57 - (void)setTextView:(id)view
59 // Only keep a weak reference to owning text view.
63 - (void)keyDown:(NSEvent *)event
65 //NSLog(@"%s %@", _cmd, event);
66 // HACK! If control modifier is held, don't pass the event along to
67 // interpretKeyEvents: since some keys are bound to multiple commands which
68 // means doCommandBySelector: is called several times. Do the same for
69 // Alt+Function key presses (Alt+Up and Alt+Down are bound to two
70 // commands). This hack may break input management, but unless we can
71 // figure out a way to disable key bindings there seems little else to do.
73 // TODO: Figure out a way to disable Cocoa key bindings entirely, without
74 // affecting input management.
76 // When the Input Method is activated, some special key inputs
77 // should be treated as key inputs for Input Method.
78 if ([textView hasMarkedText]) {
79 [textView interpretKeyEvents:[NSArray arrayWithObject:event]];
80 [textView setNeedsDisplay:YES];
84 int flags = [event modifierFlags];
85 if ((flags & NSControlKeyMask) ||
86 ((flags & NSAlternateKeyMask) && (flags & NSFunctionKeyMask))) {
87 NSString *unmod = [event charactersIgnoringModifiers];
88 if ([unmod length] == 1 && [unmod characterAtIndex:0] <= 0x7f
89 && [unmod characterAtIndex:0] >= 0x60) {
90 // HACK! Send Ctrl-letter keys (and C-@, C-[, C-\, C-], C-^, C-_)
91 // as normal text to be added to the Vim input buffer. This must
92 // be done in order for the backend to be able to separate e.g.
93 // Ctrl-i and Ctrl-tab.
94 [self insertText:[event characters]];
96 [self dispatchKeyEvent:event];
99 [textView interpretKeyEvents:[NSArray arrayWithObject:event]];
103 - (void)insertText:(id)string
105 //NSLog(@"%s %@", _cmd, string);
106 // NOTE! This method is called for normal key presses but also for
107 // Option-key presses --- even when Ctrl is held as well as Option. When
108 // Ctrl is held, the AppKit translates the character to a Ctrl+key stroke,
109 // so 'string' need not be a printable character! In this case it still
110 // works to pass 'string' on to Vim as a printable character (since
111 // modifiers are already included and should not be added to the input
112 // buffer using CSI, K_MODIFIER).
114 if ([textView hasMarkedText]) {
115 [textView unmarkText];
118 NSEvent *event = [NSApp currentEvent];
120 // HACK! In order to be able to bind to <S-Space>, <S-M-Tab>, etc. we have
121 // to watch for them here.
122 if ([event type] == NSKeyDown
123 && [[event charactersIgnoringModifiers] length] > 0
124 && [event modifierFlags]
125 & (NSShiftKeyMask|NSControlKeyMask|NSAlternateKeyMask)) {
126 unichar c = [[event charactersIgnoringModifiers] characterAtIndex:0];
128 // <S-M-Tab> translates to 0x19
129 if (' ' == c || 0x19 == c) {
130 [self dispatchKeyEvent:event];
135 [self hideMouseCursor];
137 // NOTE: 'string' is either an NSString or an NSAttributedString. Since we
138 // do not support attributes, simply pass the corresponding NSString in the
140 if ([string isKindOfClass:[NSAttributedString class]])
141 string = [string string];
143 //NSLog(@"send InsertTextMsgID: %@", string);
145 [[self vimController] sendMessage:InsertTextMsgID
146 data:[string dataUsingEncoding:NSUTF8StringEncoding]];
149 - (void)doCommandBySelector:(SEL)selector
151 //NSLog(@"%s %@", _cmd, NSStringFromSelector(selector));
152 // By ignoring the selector we effectively disable the key binding
153 // mechanism of Cocoa. Hopefully this is what the user will expect
154 // (pressing Ctrl+P would otherwise result in moveUp: instead of previous
157 // We usually end up here if the user pressed Ctrl+key (but not
160 NSEvent *event = [NSApp currentEvent];
162 if (selector == @selector(cancelOperation:)
163 || selector == @selector(insertNewline:)) {
164 // HACK! If there was marked text which got abandoned as a result of
165 // hitting escape or enter, then 'insertText:' is called with the
166 // abandoned text but '[event characters]' includes the abandoned text
167 // as well. Since 'dispatchKeyEvent:' looks at '[event characters]' we
168 // must intercept these keys here or the abandonded text gets inserted
170 NSString *key = [event charactersIgnoringModifiers];
171 const char *chars = [key UTF8String];
172 int len = [key lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
174 if (0x3 == chars[0]) {
175 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
176 // handle it separately (else Ctrl-C doesn't work).
177 len = sizeof(MMKeypadEnter)/sizeof(MMKeypadEnter[0]);
178 chars = MMKeypadEnter;
181 [self sendKeyDown:chars length:len modifiers:[event modifierFlags]];
183 [self dispatchKeyEvent:event];
187 - (BOOL)performKeyEquivalent:(NSEvent *)event
189 //NSLog(@"%s %@", _cmd, event);
190 // Called for Cmd+key keystrokes, function keys, arrow keys, page
191 // up/down, home, end.
193 // NOTE: This message cannot be ignored since Cmd+letter keys never are
194 // passed to keyDown:. It seems as if the main menu consumes Cmd-key
195 // strokes, unless the key is a function key.
197 // NOTE: If the event that triggered this method represents a function key
198 // down then we do nothing, otherwise the input method never gets the key
199 // stroke (some input methods use e.g. arrow keys). The function key down
200 // event will still reach Vim though (via keyDown:). The exceptions to
201 // this rule are: PageUp/PageDown (keycode 116/121).
202 int flags = [event modifierFlags];
203 if ([event type] != NSKeyDown || flags & NSFunctionKeyMask
204 && !(116 == [event keyCode] || 121 == [event keyCode]))
207 // HACK! KeyCode 50 represent the key which switches between windows
208 // within an application (like Cmd+Tab is used to switch between
209 // applications). Return NO here, else the window switching does not work.
210 if ([event keyCode] == 50)
213 // HACK! Let the main menu try to handle any key down event, before
214 // passing it on to vim, otherwise key equivalents for menus will
215 // effectively be disabled.
216 if ([[NSApp mainMenu] performKeyEquivalent:event])
219 // HACK! On Leopard Ctrl-key events end up here instead of keyDown:.
220 if (flags & NSControlKeyMask) {
221 [self keyDown:event];
225 // HACK! Don't handle Cmd-? or the "Help" menu does not work on Leopard.
226 NSString *unmodchars = [event charactersIgnoringModifiers];
227 if ([unmodchars isEqual:@"?"])
230 // Cmd-. is hard-wired to send an interrupt (like Ctrl-C).
231 if ((flags & NSDeviceIndependentModifierFlagsMask) == NSCommandKeyMask &&
232 [unmodchars isEqual:@"."]) {
233 [[self vimController] sendMessage:InterruptMsgID data:nil];
237 //NSLog(@"%s%@", _cmd, event);
239 NSString *chars = [event characters];
240 int len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
241 NSMutableData *data = [NSMutableData data];
246 // If 'chars' and 'unmodchars' differs when shift flag is present, then we
247 // can clear the shift flag as it is already included in 'unmodchars'.
248 // Failing to clear the shift flag means <D-Bar> turns into <S-D-Bar> (on
249 // an English keyboard).
250 if (flags & NSShiftKeyMask && ![chars isEqual:unmodchars])
251 flags &= ~NSShiftKeyMask;
253 if (0x3 == [unmodchars characterAtIndex:0]) {
254 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
255 // handle it separately (else Cmd-enter turns into Ctrl-C).
256 unmodchars = MMKeypadEnterString;
257 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
260 [data appendBytes:&flags length:sizeof(int)];
261 [data appendBytes:&len length:sizeof(int)];
262 [data appendBytes:[unmodchars UTF8String] length:len];
264 [[self vimController] sendMessage:CmdKeyMsgID data:data];
269 - (void)scrollWheel:(NSEvent *)event
271 if ([event deltaY] == 0)
274 // Don't send the event straight away because lots of these events may be
275 // received in rapid succession. Instead, accumulate the events and send
276 // off the scroll total at a predetermined maximum rate. This avoids
277 // clogging up the DO messaging system on faster machines.
278 if (0 == scrollWheelAccumulator)
279 [self performSelector:@selector(handleScrollWheelEvent:)
281 afterDelay:MMScrollWheelDelay];
283 scrollWheelAccumulator += [event deltaY];
286 - (void)mouseDown:(NSEvent *)event
289 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
290 if (![textView convertPoint:pt toRow:&row column:&col])
293 int button = [event buttonNumber];
294 int flags = [event modifierFlags];
295 int count = [event clickCount];
296 NSMutableData *data = [NSMutableData data];
298 // If desired, intepret Ctrl-Click as a right mouse click.
299 BOOL translateCtrlClick = [[NSUserDefaults standardUserDefaults]
300 boolForKey:MMTranslateCtrlClickKey];
301 flags = flags & NSDeviceIndependentModifierFlagsMask;
302 if (translateCtrlClick && button == 0 &&
303 (flags == NSControlKeyMask ||
304 flags == (NSControlKeyMask|NSAlphaShiftKeyMask))) {
306 flags &= ~NSControlKeyMask;
309 [data appendBytes:&row length:sizeof(int)];
310 [data appendBytes:&col length:sizeof(int)];
311 [data appendBytes:&button length:sizeof(int)];
312 [data appendBytes:&flags length:sizeof(int)];
313 [data appendBytes:&count length:sizeof(int)];
315 [[self vimController] sendMessage:MouseDownMsgID data:data];
318 - (void)mouseUp:(NSEvent *)event
321 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
322 if (![textView convertPoint:pt toRow:&row column:&col])
325 int flags = [event modifierFlags];
326 NSMutableData *data = [NSMutableData data];
328 [data appendBytes:&row length:sizeof(int)];
329 [data appendBytes:&col length:sizeof(int)];
330 [data appendBytes:&flags length:sizeof(int)];
332 [[self vimController] sendMessage:MouseUpMsgID data:data];
337 - (void)mouseDragged:(NSEvent *)event
339 int flags = [event modifierFlags];
341 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
342 if (![textView convertPoint:pt toRow:&row column:&col])
345 // Autoscrolling is done in dragTimerFired:
346 if (!isAutoscrolling) {
347 NSMutableData *data = [NSMutableData data];
349 [data appendBytes:&row length:sizeof(int)];
350 [data appendBytes:&col length:sizeof(int)];
351 [data appendBytes:&flags length:sizeof(int)];
353 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
362 [self startDragTimerWithInterval:.5];
367 - (void)mouseMoved:(NSEvent *)event
369 // HACK! NSTextView has a nasty habit of resetting the cursor to the
370 // default I-beam cursor at random moments. The only reliable way we know
371 // of to work around this is to set the cursor each time the mouse moves.
374 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
376 if (![textView convertPoint:pt toRow:&row column:&col])
379 // HACK! It seems impossible to get the tracking rects set up before the
380 // view is visible, which means that the first mouseEntered: or
381 // mouseExited: events are never received. This forces us to check if the
382 // mouseMoved: event really happened over the text.
384 [textView getMaxRows:&rows columns:&cols];
385 if (row >= 0 && row < rows && col >= 0 && col < cols) {
386 NSMutableData *data = [NSMutableData data];
388 [data appendBytes:&row length:sizeof(int)];
389 [data appendBytes:&col length:sizeof(int)];
391 [[self vimController] sendMessage:MouseMovedMsgID data:data];
393 //NSLog(@"Moved %d %d\n", col, row);
397 - (void)mouseEntered:(NSEvent *)event
399 //NSLog(@"%s", _cmd);
401 // NOTE: This event is received even when the window is not key; thus we
402 // have to take care not to enable mouse moved events unless our window is
404 if ([[textView window] isKeyWindow]) {
405 [[textView window] setAcceptsMouseMovedEvents:YES];
409 - (void)mouseExited:(NSEvent *)event
411 //NSLog(@"%s", _cmd);
413 [[textView window] setAcceptsMouseMovedEvents:NO];
415 // NOTE: This event is received even when the window is not key; if the
416 // mouse shape is set when our window is not key, the hollow (unfocused)
417 // cursor will become a block (focused) cursor.
418 if ([[textView window] isKeyWindow]) {
420 NSMutableData *data = [NSMutableData data];
421 [data appendBytes:&shape length:sizeof(int)];
422 [[self vimController] sendMessage:SetMouseShapeMsgID data:data];
426 - (void)setFrame:(NSRect)frame
428 //NSLog(@"%s", _cmd);
430 // When the frame changes we also need to update the tracking rect.
431 [textView removeTrackingRect:trackingRectTag];
432 trackingRectTag = [textView addTrackingRect:[self trackingRect]
438 - (void)viewDidMoveToWindow
440 //NSLog(@"%s (window=%@)", _cmd, [self window]);
442 // Set a tracking rect which covers the text.
443 // NOTE: While the mouse cursor is in this rect the view will receive
444 // 'mouseMoved:' events so that Vim can take care of updating the mouse
446 if ([textView window]) {
447 [[textView window] setAcceptsMouseMovedEvents:YES];
448 trackingRectTag = [textView addTrackingRect:[self trackingRect]
455 - (void)viewWillMoveToWindow:(NSWindow *)newWindow
457 //NSLog(@"%s%@", _cmd, newWindow);
459 // Remove tracking rect if view moves or is removed.
460 if ([textView window] && trackingRectTag) {
461 [textView removeTrackingRect:trackingRectTag];
466 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
468 NSPasteboard *pboard = [sender draggingPasteboard];
470 if ([[pboard types] containsObject:NSStringPboardType]) {
471 NSString *string = [pboard stringForType:NSStringPboardType];
472 [[self vimController] dropString:string];
474 } else if ([[pboard types] containsObject:NSFilenamesPboardType]) {
475 NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
476 [[self vimController] dropFiles:files forceOpen:NO];
483 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
485 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
486 NSPasteboard *pboard = [sender draggingPasteboard];
488 if ( [[pboard types] containsObject:NSFilenamesPboardType]
489 && (sourceDragMask & NSDragOperationCopy) )
490 return NSDragOperationCopy;
491 if ( [[pboard types] containsObject:NSStringPboardType]
492 && (sourceDragMask & NSDragOperationCopy) )
493 return NSDragOperationCopy;
495 return NSDragOperationNone;
498 - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
500 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
501 NSPasteboard *pboard = [sender draggingPasteboard];
503 if ( [[pboard types] containsObject:NSFilenamesPboardType]
504 && (sourceDragMask & NSDragOperationCopy) )
505 return NSDragOperationCopy;
506 if ( [[pboard types] containsObject:NSStringPboardType]
507 && (sourceDragMask & NSDragOperationCopy) )
508 return NSDragOperationCopy;
510 return NSDragOperationNone;
513 - (void)setMouseShape:(int)shape
519 @end // MMTextViewHelper
524 @implementation MMTextViewHelper (Private)
526 - (MMWindowController *)windowController
528 id windowController = [[textView window] windowController];
529 if ([windowController isKindOfClass:[MMWindowController class]])
530 return (MMWindowController*)windowController;
534 - (MMVimController *)vimController
536 return [[self windowController] vimController];
539 - (void)dispatchKeyEvent:(NSEvent *)event
541 // Only handle the command if it came from a keyDown event
542 if ([event type] != NSKeyDown)
545 NSString *chars = [event characters];
546 NSString *unmodchars = [event charactersIgnoringModifiers];
547 unichar c = [chars characterAtIndex:0];
548 unichar imc = [unmodchars characterAtIndex:0];
550 const char *bytes = 0;
551 int mods = [event modifierFlags];
553 //NSLog(@"%s chars[0]=0x%x unmodchars[0]=0x%x (chars=%@ unmodchars=%@)",
554 // _cmd, c, imc, chars, unmodchars);
556 if (' ' == imc && 0xa0 != c) {
557 // HACK! The AppKit turns <C-Space> into <C-@> which is not standard
558 // Vim behaviour, so bypass this problem. (0xa0 is <M-Space>, which
559 // should be passed on as is.)
560 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
561 bytes = [unmodchars UTF8String];
562 } else if (imc == c && '2' == c) {
563 // HACK! Translate Ctrl+2 to <C-@>.
564 static char ctrl_at = 0;
565 len = 1; bytes = &ctrl_at;
566 } else if (imc == c && '6' == c) {
567 // HACK! Translate Ctrl+6 to <C-^>.
568 static char ctrl_hat = 0x1e;
569 len = 1; bytes = &ctrl_hat;
570 } else if (c == 0x19 && imc == 0x19) {
571 // HACK! AppKit turns back tab into Ctrl-Y, so we need to handle it
572 // separately (else Ctrl-Y doesn't work).
573 static char tab = 0x9;
574 len = 1; bytes = &tab; mods |= NSShiftKeyMask;
576 len = [chars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
577 bytes = [chars UTF8String];
580 [self sendKeyDown:bytes length:len modifiers:mods];
583 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags
585 if (chars && len > 0) {
586 NSMutableData *data = [NSMutableData data];
588 [data appendBytes:&flags length:sizeof(int)];
589 [data appendBytes:&len length:sizeof(int)];
590 [data appendBytes:chars length:len];
592 [self hideMouseCursor];
594 //NSLog(@"%s len=%d chars=0x%x", _cmd, len, chars[0]);
595 [[self vimController] sendMessage:KeyDownMsgID data:data];
599 - (void)hideMouseCursor
601 // Check 'mousehide' option
602 id mh = [[[self vimController] vimState] objectForKey:@"p_mh"];
603 if (mh && ![mh boolValue])
604 [NSCursor setHiddenUntilMouseMoves:NO];
606 [NSCursor setHiddenUntilMouseMoves:YES];
609 - (void)startDragTimerWithInterval:(NSTimeInterval)t
611 [NSTimer scheduledTimerWithTimeInterval:t target:self
612 selector:@selector(dragTimerFired:)
613 userInfo:nil repeats:NO];
616 - (void)dragTimerFired:(NSTimer *)timer
618 // TODO: Autoscroll in horizontal direction?
619 static unsigned tick = 1;
621 isAutoscrolling = NO;
623 if (isDragging && (dragRow < 0 || dragRow >= [textView maxRows])) {
624 // HACK! If the mouse cursor is outside the text area, then send a
625 // dragged event. However, if row&col hasn't changed since the last
626 // dragged event, Vim won't do anything (see gui_send_mouse_event()).
627 // Thus we fiddle with the column to make sure something happens.
628 int col = dragColumn + (dragRow < 0 ? -(tick % 2) : +(tick % 2));
629 NSMutableData *data = [NSMutableData data];
631 [data appendBytes:&dragRow length:sizeof(int)];
632 [data appendBytes:&col length:sizeof(int)];
633 [data appendBytes:&dragFlags length:sizeof(int)];
635 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
637 isAutoscrolling = YES;
641 // Compute timer interval depending on how far away the mouse cursor is
642 // from the text view.
643 NSRect rect = [self trackingRect];
645 if (dragPoint.y < rect.origin.y) dy = rect.origin.y - dragPoint.y;
646 else if (dragPoint.y > NSMaxY(rect)) dy = dragPoint.y - NSMaxY(rect);
647 if (dy > MMDragAreaSize) dy = MMDragAreaSize;
649 NSTimeInterval t = MMDragTimerMaxInterval -
650 dy*(MMDragTimerMaxInterval-MMDragTimerMinInterval)/MMDragAreaSize;
652 [self startDragTimerWithInterval:t];
660 static NSCursor *customIbeamCursor = nil;
662 if (!customIbeamCursor) {
663 // Use a custom Ibeam cursor that has better contrast against dark
665 // TODO: Is the hotspot ok?
666 NSImage *ibeamImage = [NSImage imageNamed:@"ibeam"];
668 NSSize size = [ibeamImage size];
669 NSPoint hotSpot = { size.width*.5f, size.height*.5f };
671 customIbeamCursor = [[NSCursor alloc]
672 initWithImage:ibeamImage hotSpot:hotSpot];
674 if (!customIbeamCursor) {
675 NSLog(@"WARNING: Failed to load custom Ibeam cursor");
676 customIbeamCursor = [NSCursor IBeamCursor];
680 // This switch should match mshape_names[] in misc2.c.
682 // TODO: Add missing cursor shapes.
683 switch (mouseShape) {
684 case 2: [customIbeamCursor set]; break;
685 case 3: case 4: [[NSCursor resizeUpDownCursor] set]; break;
686 case 5: case 6: [[NSCursor resizeLeftRightCursor] set]; break;
687 case 9: [[NSCursor crosshairCursor] set]; break;
688 case 10: [[NSCursor pointingHandCursor] set]; break;
689 case 11: [[NSCursor openHandCursor] set]; break;
691 [[NSCursor arrowCursor] set]; break;
694 // Shape 1 indicates that the mouse cursor should be hidden.
696 [NSCursor setHiddenUntilMouseMoves:YES];
699 - (NSRect)trackingRect
701 NSRect rect = [textView frame];
702 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
703 int left = [ud integerForKey:MMTextInsetLeftKey];
704 int top = [ud integerForKey:MMTextInsetTopKey];
705 int right = [ud integerForKey:MMTextInsetRightKey];
706 int bot = [ud integerForKey:MMTextInsetBottomKey];
708 rect.origin.x = left;
710 rect.size.width -= left + right - 1;
711 rect.size.height -= top + bot - 1;
716 - (void)handleScrollWheelEvent:(id)event
718 if (0 == scrollWheelAccumulator)
722 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
723 if ([textView convertPoint:pt toRow:&row column:&col]) {
724 int flags = [event modifierFlags];
725 NSMutableData *data = [NSMutableData data];
727 [data appendBytes:&row length:sizeof(int)];
728 [data appendBytes:&col length:sizeof(int)];
729 [data appendBytes:&flags length:sizeof(int)];
730 [data appendBytes:&scrollWheelAccumulator length:sizeof(float)];
732 [[self vimController] sendMessage:ScrollWheelMsgID data:data];
735 scrollWheelAccumulator = 0;
738 @end // MMTextViewHelper (Private)