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
56 [insertionPointColor release]; insertionPointColor = nil;
57 [markedText release]; markedText = nil;
58 [markedTextAttributes release]; markedTextAttributes = nil;
63 - (void)setTextView:(id)view
65 // Only keep a weak reference to owning text view.
69 - (void)setInsertionPointColor:(NSColor *)color
71 if (color != insertionPointColor) {
72 [insertionPointColor release];
73 insertionPointColor = [color retain];
77 - (NSColor *)insertionPointColor
79 return insertionPointColor;
82 - (void)keyDown:(NSEvent *)event
84 //NSLog(@"%s %@", _cmd, event);
85 // HACK! If control modifier is held, don't pass the event along to
86 // interpretKeyEvents: since some keys are bound to multiple commands which
87 // means doCommandBySelector: is called several times. Do the same for
88 // Alt+Function key presses (Alt+Up and Alt+Down are bound to two
89 // commands). This hack may break input management, but unless we can
90 // figure out a way to disable key bindings there seems little else to do.
92 // TODO: Figure out a way to disable Cocoa key bindings entirely, without
93 // affecting input management.
98 // When the Input Method is activated, some special key inputs
99 // should be treated as key inputs for Input Method.
100 if ([textView hasMarkedText]) {
101 [textView interpretKeyEvents:[NSArray arrayWithObject:event]];
102 [textView setNeedsDisplay:YES];
106 int flags = [event modifierFlags];
107 if ((flags & NSControlKeyMask) ||
108 ((flags & NSAlternateKeyMask) && (flags & NSFunctionKeyMask))) {
109 BOOL unmodIsPrintable = YES;
110 NSString *unmod = [event charactersIgnoringModifiers];
111 if (unmod && [unmod length] > 0 && [unmod characterAtIndex:0] < 0x20)
112 unmodIsPrintable = NO;
114 NSString *chars = [event characters];
115 if ([chars length] == 1 && [chars characterAtIndex:0] < 0x20
116 && unmodIsPrintable) {
117 // HACK! Send unprintable characters (such as C-@, C-[, C-\, C-],
118 // C-^, C-_) as normal text to be added to the Vim input buffer.
119 // This must be done in order for the backend to be able to
120 // separate e.g. Ctrl-i and Ctrl-tab.
121 [self insertText:chars];
123 [self dispatchKeyEvent:event];
125 } else if ((flags & NSAlternateKeyMask) &&
126 [[[[self vimController] vimState] objectForKey:@"p_mmta"]
128 // If the 'macmeta' option is set, then send Alt+key presses directly
129 // to Vim without interpreting the key press.
130 NSString *unmod = [event charactersIgnoringModifiers];
131 int len = [unmod lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
132 const char *bytes = [unmod UTF8String];
134 [self sendKeyDown:bytes length:len modifiers:flags
135 isARepeat:[event isARepeat]];
137 [textView interpretKeyEvents:[NSArray arrayWithObject:event]];
141 - (void)insertText:(id)string
143 //NSLog(@"%s %@", _cmd, string);
144 // NOTE! This method is called for normal key presses but also for
145 // Option-key presses --- even when Ctrl is held as well as Option. When
146 // Ctrl is held, the AppKit translates the character to a Ctrl+key stroke,
147 // so 'string' need not be a printable character! In this case it still
148 // works to pass 'string' on to Vim as a printable character (since
149 // modifiers are already included and should not be added to the input
150 // buffer using CSI, K_MODIFIER).
152 if ([textView hasMarkedText]) {
153 [textView unmarkText];
156 NSEvent *event = [NSApp currentEvent];
161 // HACK! In order to be able to bind to <S-Space>, <S-M-Tab>, etc. we have
162 // to watch for them here.
163 if ([event type] == NSKeyDown
164 && [[event charactersIgnoringModifiers] length] > 0
165 && [event modifierFlags]
166 & (NSShiftKeyMask|NSControlKeyMask|NSAlternateKeyMask)) {
167 unichar c = [[event charactersIgnoringModifiers] characterAtIndex:0];
169 // <S-M-Tab> translates to 0x19
170 if (' ' == c || 0x19 == c) {
171 [self dispatchKeyEvent:event];
176 [self hideMouseCursor];
178 // NOTE: 'string' is either an NSString or an NSAttributedString. Since we
179 // do not support attributes, simply pass the corresponding NSString in the
181 if ([string isKindOfClass:[NSAttributedString class]])
182 string = [string string];
184 //NSLog(@"send InsertTextMsgID: %@", string);
186 NSMutableData *data = [NSMutableData data];
187 int len = [string lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
188 int flags = [event modifierFlags] & 0xffff0000U;
189 if ([event type] == NSKeyDown && [event isARepeat])
192 [data appendBytes:&flags length:sizeof(int)];
193 [data appendBytes:&len length:sizeof(int)];
194 [data appendBytes:[string UTF8String] length:len];
196 [[self vimController] sendMessage:InsertTextMsgID data:data];
199 - (void)doCommandBySelector:(SEL)selector
201 //NSLog(@"%s %@", _cmd, NSStringFromSelector(selector));
202 // By ignoring the selector we effectively disable the key binding
203 // mechanism of Cocoa. Hopefully this is what the user will expect
204 // (pressing Ctrl+P would otherwise result in moveUp: instead of previous
207 // We usually end up here if the user pressed Ctrl+key (but not
210 NSEvent *event = [NSApp currentEvent];
215 if (selector == @selector(cancelOperation:)
216 || selector == @selector(insertNewline:)) {
217 // HACK! If there was marked text which got abandoned as a result of
218 // hitting escape or enter, then 'insertText:' is called with the
219 // abandoned text but '[event characters]' includes the abandoned text
220 // as well. Since 'dispatchKeyEvent:' looks at '[event characters]' we
221 // must intercept these keys here or the abandonded text gets inserted
223 NSString *key = [event charactersIgnoringModifiers];
224 const char *chars = [key UTF8String];
225 int len = [key lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
227 if (0x3 == chars[0]) {
228 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
229 // handle it separately (else Ctrl-C doesn't work).
230 len = sizeof(MMKeypadEnter)/sizeof(MMKeypadEnter[0]);
231 chars = MMKeypadEnter;
234 [self sendKeyDown:chars length:len modifiers:[event modifierFlags]
235 isARepeat:[event isARepeat]];
237 [self dispatchKeyEvent:event];
241 - (BOOL)performKeyEquivalent:(NSEvent *)event
243 //NSLog(@"%s %@", _cmd, event);
244 // Called for Cmd+key keystrokes, function keys, arrow keys, page
245 // up/down, home, end.
247 // NOTE: This message cannot be ignored since Cmd+letter keys never are
248 // passed to keyDown:. It seems as if the main menu consumes Cmd-key
249 // strokes, unless the key is a function key.
254 // NOTE: If the event that triggered this method represents a function key
255 // down then we do nothing, otherwise the input method never gets the key
256 // stroke (some input methods use e.g. arrow keys). The function key down
257 // event will still reach Vim though (via keyDown:). The exceptions to
258 // this rule are: PageUp/PageDown (keycode 116/121).
259 int flags = [event modifierFlags] & 0xffff0000U;
260 if ([event type] != NSKeyDown || flags & NSFunctionKeyMask
261 && !(116 == [event keyCode] || 121 == [event keyCode]))
264 // HACK! KeyCode 50 represent the key which switches between windows
265 // within an application (like Cmd+Tab is used to switch between
266 // applications). Return NO here, else the window switching does not work.
267 if ([event keyCode] == 50)
270 // HACK! Let the main menu try to handle any key down event, before
271 // passing it on to vim, otherwise key equivalents for menus will
272 // effectively be disabled.
273 if ([[NSApp mainMenu] performKeyEquivalent:event])
276 // HACK! On Leopard Ctrl-key events end up here instead of keyDown:.
277 if (flags & NSControlKeyMask) {
278 [self keyDown:event];
282 // HACK! Don't handle Cmd-? or the "Help" menu does not work on Leopard.
283 NSString *unmodchars = [event charactersIgnoringModifiers];
284 if ([unmodchars isEqual:@"?"])
287 // Cmd-. is hard-wired to send SIGINT unlike Ctrl-C which is just another
288 // key press which Vim has to interpret. This means that Cmd-. always
289 // works to interrupt a Vim process whereas Ctrl-C can suffer from problems
290 // such as dropped DO messages (or if Vim is stuck in a loop without
291 // checking for keyboard input).
292 if ((flags & NSDeviceIndependentModifierFlagsMask) == NSCommandKeyMask &&
293 [unmodchars isEqual:@"."]) {
294 kill([[self vimController] pid], SIGINT);
298 //NSLog(@"%s%@", _cmd, event);
300 NSString *chars = [event characters];
301 int len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
302 NSMutableData *data = [NSMutableData data];
307 // If 'chars' and 'unmodchars' differs when shift flag is present, then we
308 // can clear the shift flag as it is already included in 'unmodchars'.
309 // Failing to clear the shift flag means <D-Bar> turns into <S-D-Bar> (on
310 // an English keyboard).
311 if (flags & NSShiftKeyMask && ![chars isEqual:unmodchars])
312 flags &= ~NSShiftKeyMask;
314 if (0x3 == [unmodchars characterAtIndex:0]) {
315 // HACK! AppKit turns enter (not return) into Ctrl-C, so we need to
316 // handle it separately (else Cmd-enter turns into Ctrl-C).
317 unmodchars = MMKeypadEnterString;
318 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
321 if ([event isARepeat])
324 [data appendBytes:&flags length:sizeof(int)];
325 [data appendBytes:&len length:sizeof(int)];
326 [data appendBytes:[unmodchars UTF8String] length:len];
328 [[self vimController] sendMessage:CmdKeyMsgID data:data];
333 - (void)scrollWheel:(NSEvent *)event
335 if ([event deltaY] == 0)
339 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
340 if ([textView convertPoint:pt toRow:&row column:&col]) {
341 int flags = [event modifierFlags];
342 float dy = [event deltaY];
343 NSMutableData *data = [NSMutableData data];
345 [data appendBytes:&row length:sizeof(int)];
346 [data appendBytes:&col length:sizeof(int)];
347 [data appendBytes:&flags length:sizeof(int)];
348 [data appendBytes:&dy length:sizeof(float)];
350 [[self vimController] sendMessage:ScrollWheelMsgID data:data];
354 - (void)mouseDown:(NSEvent *)event
357 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
358 if (![textView convertPoint:pt toRow:&row column:&col])
361 int button = [event buttonNumber];
362 int flags = [event modifierFlags];
363 int count = [event clickCount];
364 NSMutableData *data = [NSMutableData data];
366 // If desired, intepret Ctrl-Click as a right mouse click.
367 BOOL translateCtrlClick = [[NSUserDefaults standardUserDefaults]
368 boolForKey:MMTranslateCtrlClickKey];
369 flags = flags & NSDeviceIndependentModifierFlagsMask;
370 if (translateCtrlClick && button == 0 &&
371 (flags == NSControlKeyMask ||
372 flags == (NSControlKeyMask|NSAlphaShiftKeyMask))) {
374 flags &= ~NSControlKeyMask;
377 [data appendBytes:&row length:sizeof(int)];
378 [data appendBytes:&col length:sizeof(int)];
379 [data appendBytes:&button length:sizeof(int)];
380 [data appendBytes:&flags length:sizeof(int)];
381 [data appendBytes:&count length:sizeof(int)];
383 [[self vimController] sendMessage:MouseDownMsgID data:data];
386 - (void)mouseUp:(NSEvent *)event
389 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
390 if (![textView convertPoint:pt toRow:&row column:&col])
393 int flags = [event modifierFlags];
394 NSMutableData *data = [NSMutableData data];
396 [data appendBytes:&row length:sizeof(int)];
397 [data appendBytes:&col length:sizeof(int)];
398 [data appendBytes:&flags length:sizeof(int)];
400 [[self vimController] sendMessage:MouseUpMsgID data:data];
405 - (void)mouseDragged:(NSEvent *)event
407 int flags = [event modifierFlags];
409 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
410 if (![textView convertPoint:pt toRow:&row column:&col])
413 // Autoscrolling is done in dragTimerFired:
414 if (!isAutoscrolling) {
415 NSMutableData *data = [NSMutableData data];
417 [data appendBytes:&row length:sizeof(int)];
418 [data appendBytes:&col length:sizeof(int)];
419 [data appendBytes:&flags length:sizeof(int)];
421 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
430 [self startDragTimerWithInterval:.5];
435 - (void)mouseMoved:(NSEvent *)event
437 // HACK! NSTextView has a nasty habit of resetting the cursor to the
438 // default I-beam cursor at random moments. The only reliable way we know
439 // of to work around this is to set the cursor each time the mouse moves.
442 NSPoint pt = [textView convertPoint:[event locationInWindow] fromView:nil];
444 if (![textView convertPoint:pt toRow:&row column:&col])
447 // HACK! It seems impossible to get the tracking rects set up before the
448 // view is visible, which means that the first mouseEntered: or
449 // mouseExited: events are never received. This forces us to check if the
450 // mouseMoved: event really happened over the text.
452 [textView getMaxRows:&rows columns:&cols];
453 if (row >= 0 && row < rows && col >= 0 && col < cols) {
454 NSMutableData *data = [NSMutableData data];
456 [data appendBytes:&row length:sizeof(int)];
457 [data appendBytes:&col length:sizeof(int)];
459 [[self vimController] sendMessage:MouseMovedMsgID data:data];
461 //NSLog(@"Moved %d %d\n", col, row);
465 - (void)mouseEntered:(NSEvent *)event
467 //NSLog(@"%s", _cmd);
469 // NOTE: This event is received even when the window is not key; thus we
470 // have to take care not to enable mouse moved events unless our window is
472 if ([[textView window] isKeyWindow]) {
473 [[textView window] setAcceptsMouseMovedEvents:YES];
477 - (void)mouseExited:(NSEvent *)event
479 //NSLog(@"%s", _cmd);
481 [[textView window] setAcceptsMouseMovedEvents:NO];
483 // NOTE: This event is received even when the window is not key; if the
484 // mouse shape is set when our window is not key, the hollow (unfocused)
485 // cursor will become a block (focused) cursor.
486 if ([[textView window] isKeyWindow]) {
488 NSMutableData *data = [NSMutableData data];
489 [data appendBytes:&shape length:sizeof(int)];
490 [[self vimController] sendMessage:SetMouseShapeMsgID data:data];
494 - (void)setFrame:(NSRect)frame
496 //NSLog(@"%s", _cmd);
498 // When the frame changes we also need to update the tracking rect.
499 [textView removeTrackingRect:trackingRectTag];
500 trackingRectTag = [textView addTrackingRect:[self trackingRect]
506 - (void)viewDidMoveToWindow
508 //NSLog(@"%s (window=%@)", _cmd, [self window]);
510 // Set a tracking rect which covers the text.
511 // NOTE: While the mouse cursor is in this rect the view will receive
512 // 'mouseMoved:' events so that Vim can take care of updating the mouse
514 if ([textView window]) {
515 [[textView window] setAcceptsMouseMovedEvents:YES];
516 trackingRectTag = [textView addTrackingRect:[self trackingRect]
523 - (void)viewWillMoveToWindow:(NSWindow *)newWindow
525 //NSLog(@"%s%@", _cmd, newWindow);
527 // Remove tracking rect if view moves or is removed.
528 if ([textView window] && trackingRectTag) {
529 [textView removeTrackingRect:trackingRectTag];
534 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
536 NSPasteboard *pboard = [sender draggingPasteboard];
538 if ([[pboard types] containsObject:NSStringPboardType]) {
539 NSString *string = [pboard stringForType:NSStringPboardType];
540 [[self vimController] dropString:string];
542 } else if ([[pboard types] containsObject:NSFilenamesPboardType]) {
543 NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
544 [[self vimController] dropFiles:files forceOpen:NO];
551 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
553 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
554 NSPasteboard *pboard = [sender draggingPasteboard];
556 if ( [[pboard types] containsObject:NSFilenamesPboardType]
557 && (sourceDragMask & NSDragOperationCopy) )
558 return NSDragOperationCopy;
559 if ( [[pboard types] containsObject:NSStringPboardType]
560 && (sourceDragMask & NSDragOperationCopy) )
561 return NSDragOperationCopy;
563 return NSDragOperationNone;
566 - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
568 NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
569 NSPasteboard *pboard = [sender draggingPasteboard];
571 if ( [[pboard types] containsObject:NSFilenamesPboardType]
572 && (sourceDragMask & NSDragOperationCopy) )
573 return NSDragOperationCopy;
574 if ( [[pboard types] containsObject:NSStringPboardType]
575 && (sourceDragMask & NSDragOperationCopy) )
576 return NSDragOperationCopy;
578 return NSDragOperationNone;
581 - (void)setMouseShape:(int)shape
587 - (BOOL)hasMarkedText
589 return markedRange.length > 0 ? YES : NO;
592 - (NSRange)markedRange
594 if ([self hasMarkedText])
597 return NSMakeRange(NSNotFound, 0);
600 - (NSDictionary *)markedTextAttributes
602 return markedTextAttributes;
605 - (void)setMarkedTextAttributes:(NSDictionary *)attr
607 if (attr != markedTextAttributes) {
608 [markedTextAttributes release];
609 markedTextAttributes = [attr retain];
613 - (void)setMarkedText:(id)text selectedRange:(NSRange)range
617 if (!(text && [text length] > 0))
620 // HACK! Determine if the marked text is wide or normal width. This seems
621 // to always use 'wide' when there are both wide and normal width
623 NSString *string = text;
624 NSFont *theFont = [textView font];
625 if ([text isKindOfClass:[NSAttributedString class]]) {
626 theFont = [textView fontWide];
627 string = [text string];
630 // TODO: Use special colors for marked text.
631 [self setMarkedTextAttributes:
632 [NSDictionary dictionaryWithObjectsAndKeys:
633 theFont, NSFontAttributeName,
634 [textView defaultBackgroundColor], NSBackgroundColorAttributeName,
635 [textView defaultForegroundColor], NSForegroundColorAttributeName,
638 markedText = [[NSMutableAttributedString alloc]
639 initWithString:string
640 attributes:[self markedTextAttributes]];
642 markedRange = NSMakeRange(0, [markedText length]);
643 if (markedRange.length) {
644 [markedText addAttribute:NSUnderlineStyleAttributeName
645 value:[NSNumber numberWithInt:1]
650 [markedText addAttribute:NSUnderlineStyleAttributeName
651 value:[NSNumber numberWithInt:2]
655 [textView setNeedsDisplay:YES];
660 imRange = NSMakeRange(0, 0);
661 markedRange = NSMakeRange(NSNotFound, 0);
662 [markedText release];
666 - (NSMutableAttributedString *)markedText
671 - (void)setPreEditRow:(int)row column:(int)col
684 return preEditColumn;
687 - (void)setImRange:(NSRange)range
697 - (void)setMarkedRange:(NSRange)range
702 - (NSRect)firstRectForCharacterRange:(NSRange)range
704 // This method is called when the input manager wants to pop up an
705 // auxiliary window. The position where this should be is controlled by
706 // Vim by sending SetPreEditPositionMsgID so compute a position based on
707 // the pre-edit (row,column) pair.
708 int col = preEditColumn;
709 int row = preEditRow + 1;
711 NSFont *theFont = [[textView markedTextAttributes]
712 valueForKey:NSFontAttributeName];
713 if (theFont == [textView fontWide]) {
714 col += imRange.location * 2;
715 if (col >= [textView maxColumns] - 1) {
716 row += (col / [textView maxColumns]);
717 col = col % 2 ? col % [textView maxColumns] + 1 :
718 col % [textView maxColumns];
721 col += imRange.location;
722 if (col >= [textView maxColumns]) {
723 row += (col / [textView maxColumns]);
724 col = col % [textView maxColumns];
728 NSRect rect = [textView rectForRow:row
731 numColumns:range.length];
733 rect.origin = [textView convertPoint:rect.origin toView:nil];
734 rect.origin = [[textView window] convertBaseToScreen:rect.origin];
739 - (void)setImControl:(BOOL)enable
746 // IM is active whenever the current script is the system script and the
747 // system script isn't roman. (Hence IM can only be active when using
748 // non-roman scripts.)
749 SInt32 currentScript = GetScriptManagerVariable(smKeyScript);
750 SInt32 systemScript = GetScriptManagerVariable(smSysScript);
751 BOOL state = currentScript != smRoman && currentScript == systemScript;
752 int msgid = state ? ActivatedImMsgID : DeactivatedImMsgID;
753 [[self vimController] sendMessage:msgid data:nil];
756 @end // MMTextViewHelper
761 @implementation MMTextViewHelper (Private)
763 - (MMWindowController *)windowController
765 id windowController = [[textView window] windowController];
766 if ([windowController isKindOfClass:[MMWindowController class]])
767 return (MMWindowController*)windowController;
771 - (MMVimController *)vimController
773 return [[self windowController] vimController];
776 - (void)dispatchKeyEvent:(NSEvent *)event
778 // Only handle the command if it came from a keyDown event
779 if ([event type] != NSKeyDown)
782 NSString *chars = [event characters];
783 NSString *unmodchars = [event charactersIgnoringModifiers];
784 unichar c = [chars characterAtIndex:0];
785 unichar imc = [unmodchars length] > 0 ? [unmodchars characterAtIndex:0] : 0;
787 const char *bytes = 0;
788 int mods = [event modifierFlags];
790 //NSLog(@"%s chars[0]=0x%x unmodchars[0]=0x%x (chars=%@ unmodchars=%@)",
791 // _cmd, c, imc, chars, unmodchars);
793 if (' ' == imc && 0xa0 != c) {
794 // HACK! The AppKit turns <C-Space> into <C-@> which is not standard
795 // Vim behaviour, so bypass this problem. (0xa0 is <M-Space>, which
796 // should be passed on as is.)
797 len = [unmodchars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
798 bytes = [unmodchars UTF8String];
799 } else if (imc == c && '2' == c) {
800 // HACK! Translate Ctrl+2 to <C-@>.
801 static char ctrl_at = 0;
802 len = 1; bytes = &ctrl_at;
803 } else if (imc == c && '6' == c) {
804 // HACK! Translate Ctrl+6 to <C-^>.
805 static char ctrl_hat = 0x1e;
806 len = 1; bytes = &ctrl_hat;
807 } else if (c == 0x19 && imc == 0x19) {
808 // HACK! AppKit turns back tab into Ctrl-Y, so we need to handle it
809 // separately (else Ctrl-Y doesn't work).
810 static char tab = 0x9;
811 len = 1; bytes = &tab; mods |= NSShiftKeyMask;
813 len = [chars lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
814 bytes = [chars UTF8String];
817 [self sendKeyDown:bytes length:len modifiers:mods
818 isARepeat:[event isARepeat]];
821 - (void)sendKeyDown:(const char *)chars length:(int)len modifiers:(int)flags
822 isARepeat:(BOOL)isARepeat
824 if (chars && len > 0) {
825 NSMutableData *data = [NSMutableData data];
827 // The low 16 bits are not used for modifier flags by NSEvent. Use
828 // these bits for custom flags.
833 [data appendBytes:&flags length:sizeof(int)];
834 [data appendBytes:&len length:sizeof(int)];
835 [data appendBytes:chars length:len];
837 [self hideMouseCursor];
839 //NSLog(@"%s len=%d chars=0x%x", _cmd, len, chars[0]);
840 [[self vimController] sendMessage:KeyDownMsgID data:data];
844 - (void)hideMouseCursor
846 // Check 'mousehide' option
847 id mh = [[[self vimController] vimState] objectForKey:@"p_mh"];
848 if (mh && ![mh boolValue])
849 [NSCursor setHiddenUntilMouseMoves:NO];
851 [NSCursor setHiddenUntilMouseMoves:YES];
854 - (void)startDragTimerWithInterval:(NSTimeInterval)t
856 [NSTimer scheduledTimerWithTimeInterval:t target:self
857 selector:@selector(dragTimerFired:)
858 userInfo:nil repeats:NO];
861 - (void)dragTimerFired:(NSTimer *)timer
863 // TODO: Autoscroll in horizontal direction?
864 static unsigned tick = 1;
866 isAutoscrolling = NO;
868 if (isDragging && (dragRow < 0 || dragRow >= [textView maxRows])) {
869 // HACK! If the mouse cursor is outside the text area, then send a
870 // dragged event. However, if row&col hasn't changed since the last
871 // dragged event, Vim won't do anything (see gui_send_mouse_event()).
872 // Thus we fiddle with the column to make sure something happens.
873 int col = dragColumn + (dragRow < 0 ? -(tick % 2) : +(tick % 2));
874 NSMutableData *data = [NSMutableData data];
876 [data appendBytes:&dragRow length:sizeof(int)];
877 [data appendBytes:&col length:sizeof(int)];
878 [data appendBytes:&dragFlags length:sizeof(int)];
880 [[self vimController] sendMessage:MouseDraggedMsgID data:data];
882 isAutoscrolling = YES;
886 // Compute timer interval depending on how far away the mouse cursor is
887 // from the text view.
888 NSRect rect = [self trackingRect];
890 if (dragPoint.y < rect.origin.y) dy = rect.origin.y - dragPoint.y;
891 else if (dragPoint.y > NSMaxY(rect)) dy = dragPoint.y - NSMaxY(rect);
892 if (dy > MMDragAreaSize) dy = MMDragAreaSize;
894 NSTimeInterval t = MMDragTimerMaxInterval -
895 dy*(MMDragTimerMaxInterval-MMDragTimerMinInterval)/MMDragAreaSize;
897 [self startDragTimerWithInterval:t];
905 static NSCursor *customIbeamCursor = nil;
907 if (!customIbeamCursor) {
908 // Use a custom Ibeam cursor that has better contrast against dark
910 // TODO: Is the hotspot ok?
911 NSImage *ibeamImage = [NSImage imageNamed:@"ibeam"];
913 NSSize size = [ibeamImage size];
914 NSPoint hotSpot = { size.width*.5f, size.height*.5f };
916 customIbeamCursor = [[NSCursor alloc]
917 initWithImage:ibeamImage hotSpot:hotSpot];
919 if (!customIbeamCursor) {
920 NSLog(@"WARNING: Failed to load custom Ibeam cursor");
921 customIbeamCursor = [NSCursor IBeamCursor];
925 // This switch should match mshape_names[] in misc2.c.
927 // TODO: Add missing cursor shapes.
928 switch (mouseShape) {
929 case 2: [customIbeamCursor set]; break;
930 case 3: case 4: [[NSCursor resizeUpDownCursor] set]; break;
931 case 5: case 6: [[NSCursor resizeLeftRightCursor] set]; break;
932 case 9: [[NSCursor crosshairCursor] set]; break;
933 case 10: [[NSCursor pointingHandCursor] set]; break;
934 case 11: [[NSCursor openHandCursor] set]; break;
936 [[NSCursor arrowCursor] set]; break;
939 // Shape 1 indicates that the mouse cursor should be hidden.
941 [NSCursor setHiddenUntilMouseMoves:YES];
944 - (NSRect)trackingRect
946 NSRect rect = [textView frame];
947 NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
948 int left = [ud integerForKey:MMTextInsetLeftKey];
949 int top = [ud integerForKey:MMTextInsetTopKey];
950 int right = [ud integerForKey:MMTextInsetRightKey];
951 int bot = [ud integerForKey:MMTextInsetBottomKey];
953 rect.origin.x = left;
955 rect.size.width -= left + right - 1;
956 rect.size.height -= top + bot - 1;
961 @end // MMTextViewHelper (Private)