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support for hints, fixing textfield implementation on iOS
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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/osx/cocoa/textctrl.mm
3 // Purpose: wxTextCtrl
4 // Author: Stefan Csomor
5 // Modified by: Ryan Norton (MLTE GetLineLength and GetLineText)
6 // Created: 1998-01-01
7 // RCS-ID: $Id: textctrl.cpp 54820 2008-07-29 20:04:11Z SC $
8 // Copyright: (c) Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #if wxUSE_TEXTCTRL
15
16 #include "wx/textctrl.h"
17
18 #ifndef WX_PRECOMP
19 #include "wx/intl.h"
20 #include "wx/app.h"
21 #include "wx/utils.h"
22 #include "wx/dc.h"
23 #include "wx/button.h"
24 #include "wx/menu.h"
25 #include "wx/settings.h"
26 #include "wx/msgdlg.h"
27 #include "wx/toplevel.h"
28 #endif
29
30 #ifdef __DARWIN__
31 #include <sys/types.h>
32 #include <sys/stat.h>
33 #else
34 #include <stat.h>
35 #endif
36
37 #if wxUSE_STD_IOSTREAM
38 #if wxUSE_IOSTREAMH
39 #include <fstream.h>
40 #else
41 #include <fstream>
42 #endif
43 #endif
44
45 #include "wx/filefn.h"
46 #include "wx/sysopt.h"
47 #include "wx/thread.h"
48
49 #include "wx/osx/private.h"
50 #include "wx/osx/cocoa/private/textimpl.h"
51
52 @interface NSView(EditableView)
53 - (BOOL)isEditable;
54 - (void)setEditable:(BOOL)flag;
55 @end
56
57 class wxMacEditHelper
58 {
59 public :
60 wxMacEditHelper( NSView* textView )
61 {
62 m_textView = textView;
63 m_formerState = YES;
64 if ( textView )
65 {
66 m_formerState = [textView isEditable];
67 [textView setEditable:YES];
68 }
69 }
70
71 ~wxMacEditHelper()
72 {
73 if ( m_textView )
74 [m_textView setEditable:m_formerState];
75 }
76
77 protected :
78 BOOL m_formerState ;
79 NSView* m_textView;
80 } ;
81
82 @implementation wxNSSecureTextField
83
84 + (void)initialize
85 {
86 static BOOL initialized = NO;
87 if (!initialized)
88 {
89 initialized = YES;
90 wxOSXCocoaClassAddWXMethods( self );
91 }
92 }
93
94 - (void)controlTextDidChange:(NSNotification *)aNotification
95 {
96 wxUnusedVar(aNotification);
97 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
98 if ( impl )
99 impl->controlTextDidChange();
100 }
101
102 - (void)controlTextDidEndEditing:(NSNotification *)aNotification
103 {
104 wxUnusedVar(aNotification);
105 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
106 if ( impl )
107 {
108 impl->DoNotifyFocusEvent( false, NULL );
109 }
110 }
111
112 @end
113
114 @interface wxNSTextScrollView : NSScrollView
115 {
116 }
117 @end
118
119 @implementation wxNSTextScrollView
120
121 + (void)initialize
122 {
123 static BOOL initialized = NO;
124 if (!initialized)
125 {
126 initialized = YES;
127 wxOSXCocoaClassAddWXMethods( self );
128 }
129 }
130
131 @end
132
133 @implementation wxNSTextFieldEditor
134
135 - (void) keyDown:(NSEvent*) event
136 {
137 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
138 lastKeyDownEvent = event;
139 if ( impl == NULL || !impl->DoHandleKeyEvent(event) )
140 [super keyDown:event];
141 lastKeyDownEvent = nil;
142 }
143
144 - (void) keyUp:(NSEvent*) event
145 {
146 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
147 if ( impl == NULL || !impl->DoHandleKeyEvent(event) )
148 [super keyUp:event];
149 }
150
151 - (void) flagsChanged:(NSEvent*) event
152 {
153 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
154 if ( impl == NULL || !impl->DoHandleKeyEvent(event) )
155 [super flagsChanged:event];
156 }
157
158 - (BOOL) performKeyEquivalent:(NSEvent*) event
159 {
160 BOOL retval = [super performKeyEquivalent:event];
161 return retval;
162 }
163
164 - (void) insertText:(id) str
165 {
166 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
167 if ( impl == NULL || lastKeyDownEvent==nil || !impl->DoHandleCharEvent(lastKeyDownEvent, str) )
168 {
169 [super insertText:str];
170 }
171 }
172
173 @end
174
175 @implementation wxNSTextView
176
177 + (void)initialize
178 {
179 static BOOL initialized = NO;
180 if (!initialized)
181 {
182 initialized = YES;
183 wxOSXCocoaClassAddWXMethods( self );
184 }
185 }
186
187 - (void)textDidChange:(NSNotification *)aNotification
188 {
189 wxUnusedVar(aNotification);
190 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
191 if ( impl )
192 impl->controlTextDidChange();
193 }
194
195 @end
196
197 @implementation wxNSTextField
198
199 + (void)initialize
200 {
201 static BOOL initialized = NO;
202 if (!initialized)
203 {
204 initialized = YES;
205 wxOSXCocoaClassAddWXMethods( self );
206 }
207 }
208
209 - (id) initWithFrame:(NSRect) frame
210 {
211 self = [super initWithFrame:frame];
212 fieldEditor = nil;
213 return self;
214 }
215
216 - (void) dealloc
217 {
218 [fieldEditor release];
219 [super dealloc];
220 }
221
222 - (void) setFieldEditor:(wxNSTextFieldEditor*) editor
223 {
224 fieldEditor = editor;
225 }
226
227 - (wxNSTextFieldEditor*) fieldEditor
228 {
229 return fieldEditor;
230 }
231
232 - (void) setEnabled:(BOOL) flag
233 {
234 [super setEnabled: flag];
235
236 if (![self drawsBackground]) {
237 // Static text is drawn incorrectly when disabled.
238 // For an explanation, see
239 // http://www.cocoabuilder.com/archive/message/cocoa/2006/7/21/168028
240 if (flag) {
241 [self setTextColor: [NSColor controlTextColor]];
242 } else {
243 [self setTextColor: [NSColor secondarySelectedControlColor]];
244 }
245 }
246 }
247
248 - (void)controlTextDidChange:(NSNotification *)aNotification
249 {
250 wxUnusedVar(aNotification);
251 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
252 if ( impl )
253 impl->controlTextDidChange();
254 }
255
256 - (BOOL)control:(NSControl*)control textView:(NSTextView*)textView doCommandBySelector:(SEL)commandSelector
257 {
258 wxUnusedVar(textView);
259 wxUnusedVar(control);
260
261 BOOL handled = NO;
262
263 // send back key events wx' common code knows how to handle
264
265 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
266 if ( impl )
267 {
268 wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
269 if ( wxpeer )
270 {
271 if (commandSelector == @selector(insertNewline:))
272 {
273 [textView insertNewlineIgnoringFieldEditor:self];
274 handled = YES;
275 }
276 else if ( commandSelector == @selector(insertTab:))
277 {
278 [textView insertTabIgnoringFieldEditor:self];
279 handled = YES;
280 }
281 else if ( commandSelector == @selector(insertBacktab:))
282 {
283 [textView insertTabIgnoringFieldEditor:self];
284 handled = YES;
285 }
286 }
287 }
288
289 return handled;
290 }
291
292 - (void)controlTextDidEndEditing:(NSNotification *)aNotification
293 {
294 wxUnusedVar(aNotification);
295 wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
296 if ( impl )
297 {
298 impl->DoNotifyFocusEvent( false, NULL );
299 }
300 }
301 @end
302
303 // wxNSTextViewControl
304
305 wxNSTextViewControl::wxNSTextViewControl( wxTextCtrl *wxPeer, WXWidget w )
306 : wxWidgetCocoaImpl(wxPeer, w),
307 wxTextWidgetImpl(wxPeer)
308 {
309 wxNSTextScrollView* sv = (wxNSTextScrollView*) w;
310 m_scrollView = sv;
311
312 [m_scrollView setHasVerticalScroller:YES];
313 [m_scrollView setHasHorizontalScroller:NO];
314 [m_scrollView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
315 NSSize contentSize = [m_scrollView contentSize];
316
317 wxNSTextView* tv = [[wxNSTextView alloc] initWithFrame: NSMakeRect(0, 0,
318 contentSize.width, contentSize.height)];
319 m_textView = tv;
320 [tv setVerticallyResizable:YES];
321 [tv setHorizontallyResizable:NO];
322 [tv setAutoresizingMask:NSViewWidthSizable];
323
324 [m_scrollView setDocumentView: tv];
325
326 [tv setDelegate: tv];
327
328 InstallEventHandler(tv);
329 }
330
331 wxNSTextViewControl::~wxNSTextViewControl()
332 {
333 if (m_textView)
334 [m_textView setDelegate: nil];
335 }
336
337 bool wxNSTextViewControl::CanFocus() const
338 {
339 // since this doesn't work (return false), we hardcode
340 // if (m_textView)
341 // return [m_textView canBecomeKeyView];
342 return true;
343 }
344
345 wxString wxNSTextViewControl::GetStringValue() const
346 {
347 if (m_textView)
348 {
349 wxString result = wxCFStringRef::AsString([m_textView string], m_wxPeer->GetFont().GetEncoding());
350 wxMacConvertNewlines13To10( &result ) ;
351 return result;
352 }
353 return wxEmptyString;
354 }
355 void wxNSTextViewControl::SetStringValue( const wxString &str)
356 {
357 wxString st = str;
358 wxMacConvertNewlines10To13( &st );
359 wxMacEditHelper helper(m_textView);
360
361 if (m_textView)
362 [m_textView setString: wxCFStringRef( st , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
363 }
364
365 void wxNSTextViewControl::Copy()
366 {
367 if (m_textView)
368 [m_textView copy:nil];
369
370 }
371
372 void wxNSTextViewControl::Cut()
373 {
374 if (m_textView)
375 [m_textView cut:nil];
376 }
377
378 void wxNSTextViewControl::Paste()
379 {
380 if (m_textView)
381 [m_textView paste:nil];
382 }
383
384 bool wxNSTextViewControl::CanPaste() const
385 {
386 return true;
387 }
388
389 void wxNSTextViewControl::SetEditable(bool editable)
390 {
391 if (m_textView)
392 [m_textView setEditable: editable];
393 }
394
395 void wxNSTextViewControl::GetSelection( long* from, long* to) const
396 {
397 if (m_textView)
398 {
399 NSRange range = [m_textView selectedRange];
400 *from = range.location;
401 *to = range.location + range.length;
402 }
403 }
404
405 void wxNSTextViewControl::SetSelection( long from , long to )
406 {
407 long textLength = [[m_textView string] length];
408 if ((from == -1) && (to == -1))
409 {
410 from = 0 ;
411 to = textLength ;
412 }
413 else
414 {
415 from = wxMin(textLength,wxMax(from,0)) ;
416 if ( to == -1 )
417 to = textLength;
418 else
419 to = wxMax(0,wxMin(textLength,to)) ;
420 }
421
422 NSRange selrange = NSMakeRange(from, to-from);
423 [m_textView setSelectedRange:selrange];
424 [m_textView scrollRangeToVisible:selrange];
425 }
426
427 void wxNSTextViewControl::WriteText(const wxString& str)
428 {
429 wxString st = str;
430 wxMacConvertNewlines10To13( &st );
431 wxMacEditHelper helper(m_textView);
432 NSEvent* formerEvent = m_lastKeyDownEvent;
433 m_lastKeyDownEvent = nil;
434 [m_textView insertText:wxCFStringRef( st , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
435 m_lastKeyDownEvent = formerEvent;
436 }
437
438 void wxNSTextViewControl::SetFont( const wxFont & font , const wxColour& WXUNUSED(foreground) , long WXUNUSED(windowStyle), bool WXUNUSED(ignoreBlack) )
439 {
440 if ([m_textView respondsToSelector:@selector(setFont:)])
441 [m_textView setFont: font.OSXGetNSFont()];
442 }
443
444 bool wxNSTextViewControl::GetStyle(long position, wxTextAttr& style)
445 {
446 if (m_textView && position >=0)
447 {
448 NSFont* font = NULL;
449 NSColor* bgcolor = NULL;
450 NSColor* fgcolor = NULL;
451 // NOTE: It appears that other platforms accept GetStyle with the position == length
452 // but that NSTextStorage does not accept length as a valid position.
453 // Therefore we return the default control style in that case.
454 if (position < [[m_textView string] length])
455 {
456 NSTextStorage* storage = [m_textView textStorage];
457 font = [[storage attribute:NSFontAttributeName atIndex:position effectiveRange:NULL] autorelease];
458 bgcolor = [[storage attribute:NSBackgroundColorAttributeName atIndex:position effectiveRange:NULL] autorelease];
459 fgcolor = [[storage attribute:NSForegroundColorAttributeName atIndex:position effectiveRange:NULL] autorelease];
460 }
461 else
462 {
463 NSDictionary* attrs = [m_textView typingAttributes];
464 font = [[attrs objectForKey:NSFontAttributeName] autorelease];
465 bgcolor = [[attrs objectForKey:NSBackgroundColorAttributeName] autorelease];
466 fgcolor = [[attrs objectForKey:NSForegroundColorAttributeName] autorelease];
467 }
468
469 if (font)
470 style.SetFont(wxFont(font));
471
472 if (bgcolor)
473 style.SetBackgroundColour(wxColour(bgcolor));
474
475 if (fgcolor)
476 style.SetTextColour(wxColour(fgcolor));
477 return true;
478 }
479
480 return false;
481 }
482
483 void wxNSTextViewControl::SetStyle(long start,
484 long end,
485 const wxTextAttr& style)
486 {
487 if (m_textView) {
488 NSRange range = NSMakeRange(start, end-start);
489 if (start == -1 && end == -1)
490 range = [m_textView selectedRange];
491
492 NSTextStorage* storage = [m_textView textStorage];
493
494 wxFont font = style.GetFont();
495 if (style.HasFont() && font.IsOk())
496 [storage addAttribute:NSFontAttributeName value:font.OSXGetNSFont() range:range];
497
498 wxColour bgcolor = style.GetBackgroundColour();
499 if (style.HasBackgroundColour() && bgcolor.IsOk())
500 [storage addAttribute:NSBackgroundColorAttributeName value:bgcolor.OSXGetNSColor() range:range];
501
502 wxColour fgcolor = style.GetTextColour();
503 if (style.HasTextColour() && fgcolor.IsOk())
504 [storage addAttribute:NSForegroundColorAttributeName value:fgcolor.OSXGetNSColor() range:range];
505 }
506 }
507
508 void wxNSTextViewControl::CheckSpelling(bool check)
509 {
510 if (m_textView)
511 [m_textView setContinuousSpellCheckingEnabled: check];
512 }
513
514 wxSize wxNSTextViewControl::GetBestSize() const
515 {
516 if (m_textView && [m_textView layoutManager])
517 {
518 NSRect rect = [[m_textView layoutManager] usedRectForTextContainer: [m_textView textContainer]];
519 return wxSize((int)(rect.size.width + [m_textView textContainerInset].width),
520 (int)(rect.size.height + [m_textView textContainerInset].height));
521 }
522 return wxSize(0,0);
523 }
524
525 // wxNSTextFieldControl
526
527 wxNSTextFieldControl::wxNSTextFieldControl( wxTextCtrl *text, WXWidget w )
528 : wxWidgetCocoaImpl(text, w),
529 wxTextWidgetImpl(text)
530 {
531 Init(w);
532 }
533
534 wxNSTextFieldControl::wxNSTextFieldControl(wxWindow *wxPeer,
535 wxTextEntry *entry,
536 WXWidget w)
537 : wxWidgetCocoaImpl(wxPeer, w),
538 wxTextWidgetImpl(entry)
539 {
540 Init(w);
541 }
542
543 void wxNSTextFieldControl::Init(WXWidget w)
544 {
545 NSTextField wxOSX_10_6_AND_LATER(<NSTextFieldDelegate>) *tf = (NSTextField*) w;
546 m_textField = tf;
547 [m_textField setDelegate: tf];
548 m_selStart = m_selEnd = 0;
549 m_hasEditor = [w isKindOfClass:[NSTextField class]];
550 }
551
552 wxNSTextFieldControl::~wxNSTextFieldControl()
553 {
554 if (m_textField)
555 [m_textField setDelegate: nil];
556 }
557
558 wxString wxNSTextFieldControl::GetStringValue() const
559 {
560 return wxCFStringRef::AsString([m_textField stringValue], m_wxPeer->GetFont().GetEncoding());
561 }
562
563 void wxNSTextFieldControl::SetStringValue( const wxString &str)
564 {
565 wxMacEditHelper helper(m_textField);
566 [m_textField setStringValue: wxCFStringRef( str , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
567 }
568
569 void wxNSTextFieldControl::Copy()
570 {
571 NSText* editor = [m_textField currentEditor];
572 if ( editor )
573 {
574 [editor copy:nil];
575 }
576 }
577
578 void wxNSTextFieldControl::Cut()
579 {
580 NSText* editor = [m_textField currentEditor];
581 if ( editor )
582 {
583 [editor cut:nil];
584 }
585 }
586
587 void wxNSTextFieldControl::Paste()
588 {
589 NSText* editor = [m_textField currentEditor];
590 if ( editor )
591 {
592 [editor paste:nil];
593 }
594 }
595
596 bool wxNSTextFieldControl::CanPaste() const
597 {
598 return true;
599 }
600
601 void wxNSTextFieldControl::SetEditable(bool editable)
602 {
603 [m_textField setEditable:editable];
604 }
605
606 void wxNSTextFieldControl::GetSelection( long* from, long* to) const
607 {
608 NSText* editor = [m_textField currentEditor];
609 if ( editor )
610 {
611 NSRange range = [editor selectedRange];
612 *from = range.location;
613 *to = range.location + range.length;
614 }
615 else
616 {
617 *from = m_selStart;
618 *to = m_selEnd;
619 }
620 }
621
622 void wxNSTextFieldControl::SetSelection( long from , long to )
623 {
624 long textLength = [[m_textField stringValue] length];
625 if ((from == -1) && (to == -1))
626 {
627 from = 0 ;
628 to = textLength ;
629 }
630 else
631 {
632 from = wxMin(textLength,wxMax(from,0)) ;
633 if ( to == -1 )
634 to = textLength;
635 else
636 to = wxMax(0,wxMin(textLength,to)) ;
637 }
638
639 NSText* editor = [m_textField currentEditor];
640 if ( editor )
641 {
642 [editor setSelectedRange:NSMakeRange(from, to-from)];
643 }
644 else
645 {
646 m_selStart = from;
647 m_selEnd = to;
648 }
649 }
650
651 void wxNSTextFieldControl::WriteText(const wxString& str)
652 {
653 NSEvent* formerEvent = m_lastKeyDownEvent;
654 m_lastKeyDownEvent = nil;
655 NSText* editor = [m_textField currentEditor];
656 if ( editor )
657 {
658 wxMacEditHelper helper(m_textField);
659 [editor insertText:wxCFStringRef( str , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
660 }
661 else
662 {
663 wxString val = GetStringValue() ;
664 long start , end ;
665 GetSelection( &start , &end ) ;
666 val.Remove( start , end - start ) ;
667 val.insert( start , str ) ;
668 SetStringValue( val ) ;
669 SetSelection( start + str.length() , start + str.length() ) ;
670 }
671 m_lastKeyDownEvent = formerEvent;
672 }
673
674 void wxNSTextFieldControl::controlAction(WXWidget WXUNUSED(slf),
675 void* WXUNUSED(_cmd), void *WXUNUSED(sender))
676 {
677 wxWindow* wxpeer = (wxWindow*) GetWXPeer();
678 if ( wxpeer && (wxpeer->GetWindowStyle() & wxTE_PROCESS_ENTER) )
679 {
680 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, wxpeer->GetId());
681 event.SetEventObject( wxpeer );
682 event.SetString( GetTextEntry()->GetValue() );
683 wxpeer->HandleWindowEvent( event );
684 }
685 }
686
687 bool wxNSTextFieldControl::SetHint(const wxString& hint)
688 {
689 wxCFStringRef hintstring(hint);
690 [[m_textField cell] setPlaceholderString:hintstring.AsNSString()];
691 return true;
692 }
693
694 //
695 //
696 //
697
698 wxWidgetImplType* wxWidgetImpl::CreateTextControl( wxTextCtrl* wxpeer,
699 wxWindowMac* WXUNUSED(parent),
700 wxWindowID WXUNUSED(id),
701 const wxString& WXUNUSED(str),
702 const wxPoint& pos,
703 const wxSize& size,
704 long style,
705 long WXUNUSED(extraStyle))
706 {
707 NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
708 wxWidgetCocoaImpl* c = NULL;
709
710 if ( style & wxTE_MULTILINE || style & wxTE_RICH || style & wxTE_RICH2 )
711 {
712 wxNSTextScrollView* v = nil;
713 v = [[wxNSTextScrollView alloc] initWithFrame:r];
714 c = new wxNSTextViewControl( wxpeer, v );
715 }
716 else
717 {
718 NSTextField* v = nil;
719 if ( style & wxTE_PASSWORD )
720 v = [[wxNSSecureTextField alloc] initWithFrame:r];
721 else
722 v = [[wxNSTextField alloc] initWithFrame:r];
723
724 if ( style & wxNO_BORDER )
725 {
726 // FIXME: How can we remove the native control's border?
727 // setBordered is separate from the text ctrl's border.
728 }
729
730 NSTextFieldCell* cell = [v cell];
731 [cell setScrollable:YES];
732 // TODO: Remove if we definitely are sure, it's not needed
733 // as setting scrolling to yes, should turn off any wrapping
734 // [cell setLineBreakMode:NSLineBreakByClipping];
735
736 [v setBezeled:NO];
737 [v setBordered:NO];
738
739 c = new wxNSTextFieldControl( wxpeer, wxpeer, v );
740 }
741
742 return c;
743 }
744
745
746 #endif // wxUSE_TEXTCTRL