8264290: Create implementation for NSAccessibilityComponentGroup protocol peer

Reviewed-by: pbansal

src/java.desktop/macosx/native/libawt_lwawt/awt/a11y/CommonComponentAccessibility.m

@@ -48,7 +48,7 @@ static jobject sAccessibilityClass = NULL;
     /*
      * Here we should keep all the mapping between the accessibility roles and implementing classes
      */
-    rolesMap = [[NSMutableDictionary alloc] initWithCapacity:29];
+    rolesMap = [[NSMutableDictionary alloc] initWithCapacity:34];
 
     [rolesMap setObject:@"ButtonAccessibility" forKey:@"pushbutton"];
     [rolesMap setObject:@"ImageAccessibility" forKey:@"icon"];
@@ -61,6 +61,11 @@ static jobject sAccessibilityClass = NULL;
     [rolesMap setObject:@"SliderAccessibility" forKey:@"slider"];
     [rolesMap setObject:@"ScrollAreaAccessibility" forKey:@"scrollpane"];
     [rolesMap setObject:@"ScrollBarAccessibility" forKey:@"scrollbar"];
+    [rolesMap setObject:@"GroupAccessibility" forKey:@"awtcomponent"];
+    [rolesMap setObject:@"GroupAccessibility" forKey:@"canvas"];
+    [rolesMap setObject:@"GroupAccessibility" forKey:@"groupbox"];
+    [rolesMap setObject:@"GroupAccessibility" forKey:@"internalframe"];
+    [rolesMap setObject:@"GroupAccessibility" forKey:@"swingcomponent"];
 
     /*
      * All the components below should be ignored by the accessibility subsystem,

src/java.desktop/macosx/native/libawt_lwawt/awt/a11y/GroupAccessibility.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#import "JavaComponentAccessibility.h"
+#import "CommonComponentAccessibility.h"
+
+#import <AppKit/AppKit.h>
+
+@interface GroupAccessibility : CommonComponentAccessibility <NSAccessibilityGroup> {
+
+};
+
+- (NSArray * _Nullable)accessibilityChildren;
+@end

src/java.desktop/macosx/native/libawt_lwawt/awt/a11y/GroupAccessibility.m

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#import "GroupAccessibility.h"
+#import "JNIUtilities.h"
+#import "ThreadUtilities.h"
+/*
+ * This is the protocol for the components that contain children.
+ * Basic logic of accessibilityChildren might be overridden in the specific implementing
+ * classes reflecting the logic of the class.
+ */
+@implementation GroupAccessibility
+
+/*
+ * Return all non-ignored children.
+ */
+- (NSArray *)accessibilityChildren {
+    JNIEnv *env = [ThreadUtilities getJNIEnv];
+
+    NSArray *children = [JavaComponentAccessibility childrenOfParent:self
+                                                             withEnv:env
+                                                    withChildrenCode:JAVA_AX_ALL_CHILDREN
+                                                        allowIgnored:NO];
+
+    if ([children count] == 0) {
+        return nil;
+    } else {
+        return children;
+    }
+}
+
+@end