8195675: Call to insertText with single character from custom Input Method ignored

Reviewed-by: prr

src/java.desktop/macosx/native/libawt_lwawt/awt/AWTView.m

@@ -38,6 +38,9 @@
 // keyboard layout
 static NSString *kbdLayout;
 
+// Constant for keyman layouts
+#define KEYMAN_LAYOUT "keyman"
+
 @interface AWTView()
 @property (retain) CDropTarget *_dropTarget;
 @property (retain) CDragSource *_dragSource;
@@ -259,7 +262,7 @@ static BOOL shouldUsePressAndHold() {
 
 - (void) keyDown: (NSEvent *)event {
     fProcessingKeystroke = YES;
-    fKeyEventsNeeded = YES;
+    fKeyEventsNeeded = ![(NSString *)kbdLayout containsString:@KEYMAN_LAYOUT];
 
     // Allow TSM to look at the event and potentially send back NSTextInputClient messages.
     [self interpretKeyEvents:[NSArray arrayWithObject:event]];
@@ -965,7 +968,7 @@ static jclass jc_CInputMethod = NULL;
 
     if ((utf16Length > 2) ||
         ((utf8Length > 1) && [self isCodePointInUnicodeBlockNeedingIMEvent:codePoint]) ||
-        ((codePoint == 0x5c) && ([(NSString *)kbdLayout containsString:@"Kotoeri"]))) {
+        [(NSString *)kbdLayout containsString:@KEYMAN_LAYOUT]) {
 #ifdef IM_DEBUG
         NSLog(@"string complex ");
 #endif