+ delete[] content ;
+ result = noErr ;
+ }
+ }
+ }
+ }
+ break ;
+
+ default:
+ break ;
+ }
+
+ return result ;
+}
+
+pascal OSStatus wxMacUnicodeTextEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
+{
+ OSStatus result = eventNotHandledErr ;
+ wxWindowMac* focus = (wxWindowMac*) data ;
+
+ wchar_t* uniChars = NULL ;
+ UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;
+
+ UniChar* charBuf = NULL;
+ ByteCount dataSize = 0 ;
+ int numChars = 0 ;
+ UniChar buf[2] ;
+ if ( GetEventParameter( event, kEventParamTextInputSendText, typeUnicodeText, NULL, 0 , &dataSize, NULL ) == noErr )
+ {
+ numChars = dataSize / sizeof( UniChar) + 1;
+ charBuf = buf ;
+
+ if ( (size_t) numChars * 2 > sizeof(buf) )
+ charBuf = new UniChar[ numChars ] ;
+ else
+ charBuf = buf ;
+
+ uniChars = new wchar_t[ numChars ] ;
+ GetEventParameter( event, kEventParamTextInputSendText, typeUnicodeText, NULL, dataSize , NULL , charBuf ) ;
+ charBuf[ numChars - 1 ] = 0;
+#if SIZEOF_WCHAR_T == 2
+ uniChars = (wchar_t*) charBuf ;
+/* memcpy( uniChars , charBuf , numChars * 2 ) ;*/ // is there any point in copying charBuf over itself? (in fact, memcpy isn't even guaranteed to work correctly if the source and destination ranges overlap...)
+#else
+ // the resulting string will never have more chars than the utf16 version, so this is safe
+ wxMBConvUTF16 converter ;
+ numChars = converter.MB2WC( uniChars , (const char*)charBuf , numChars ) ;
+#endif
+ }
+
+ switch ( GetEventKind( event ) )
+ {
+ case kEventTextInputUpdateActiveInputArea :
+ {
+ // An IME input event may return several characters, but we need to send one char at a time to
+ // EVT_CHAR
+ for (int pos=0 ; pos < numChars ; pos++)
+ {
+ WXEVENTREF formerEvent = wxTheApp->MacGetCurrentEvent() ;
+ WXEVENTHANDLERCALLREF formerHandler = wxTheApp->MacGetCurrentEventHandlerCallRef() ;
+ wxTheApp->MacSetCurrentEvent( event , handler ) ;
+
+ UInt32 message = uniChars[pos] < 128 ? (char)uniChars[pos] : '?';
+/*
+ NB: faking a charcode here is problematic. The kEventTextInputUpdateActiveInputArea event is sent
+ multiple times to update the active range during inline input, so this handler will often receive
+ uncommited text, which should usually not trigger side effects. It might be a good idea to check the
+ kEventParamTextInputSendFixLen parameter and verify if input is being confirmed (see CarbonEvents.h).
+ On the other hand, it can be useful for some applications to react to uncommitted text (for example,
+ to update a status display), as long as it does not disrupt the inline input session. Ideally, wx
+ should add new event types to support advanced text input. For now, I would keep things as they are.
+
+ However, the code that was being used caused additional problems:
+ UInt32 message = (0 << 8) + ((char)uniChars[pos] );
+ Since it simply truncated the unichar to the last byte, it ended up causing weird bugs with inline
+ input, such as switching to another field when one attempted to insert the character U+4E09 (the kanji
+ for "three"), because it was truncated to 09 (kTabCharCode), which was later "converted" to WXK_TAB
+ (still 09) in wxMacTranslateKey; or triggering the default button when one attempted to insert U+840D
+ (the kanji for "name"), which got truncated to 0D and interpreted as a carriage return keypress.
+ Note that even single-byte characters could have been misinterpreted, since MacRoman charcodes only
+ overlap with Unicode within the (7-bit) ASCII range.
+ But simply passing a NUL charcode would disable text updated events, because wxTextCtrl::OnChar checks
+ for codes within a specific range. Therefore I went for the solution seen above, which keeps ASCII
+ characters as they are and replaces the rest with '?', ensuring that update events are triggered.
+ It would be better to change wxTextCtrl::OnChar to look at the actual unicode character instead, but
+ I don't have time to look into that right now.
+ -- CL
+*/
+ if ( wxTheApp->MacSendCharEvent(
+ focus , message , 0 , when , 0 , 0 , uniChars[pos] ) )
+ {
+ result = noErr ;
+ }
+
+ wxTheApp->MacSetCurrentEvent( formerEvent , formerHandler ) ;
+ }
projects / wxWidgets.git / blobdiff