1 /*
   2  * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #import <JavaRuntimeSupport/JavaRuntimeSupport.h>
  27 
  28 
  29 #import "CMenu.h"
  30 #import "CMenuBar.h"
  31 #import "ThreadUtilities.h"
  32 #import "JNIUtilities.h"
  33 
  34 #import "sun_lwawt_macosx_CMenu.h"
  35 
  36 @implementation CMenu
  37 
  38 - (id)initWithPeer:(jobject)peer {
  39 AWT_ASSERT_APPKIT_THREAD;
  40     // Create the new NSMenu
  41     self = [super initWithPeer:peer asSeparator:NO];
  42     if (self) {
  43         fMenu = [NSMenu javaMenuWithTitle:@""];
  44         [fMenu retain];
  45         [fMenu setAutoenablesItems:NO];
  46     }
  47     return self;
  48 }
  49 
  50 - (void)dealloc {
  51     [fMenu release];
  52     fMenu = nil;
  53     [super dealloc];
  54 }
  55 
  56 - (void)addJavaSubmenu:(CMenu *)submenu {
  57     [ThreadUtilities performOnMainThread:@selector(addNativeItem_OnAppKitThread:) on:self withObject:submenu waitUntilDone:YES];
  58 }
  59 
  60 - (void)addJavaMenuItem:(CMenuItem *)theMenuItem {
  61     [ThreadUtilities performOnMainThread:@selector(addNativeItem_OnAppKitThread:) on:self withObject:theMenuItem waitUntilDone:YES];
  62 }
  63 
  64 - (void)addNativeItem_OnAppKitThread:(CMenuItem *)itemModified {
  65 AWT_ASSERT_APPKIT_THREAD;
  66     [itemModified addNSMenuItemToMenu:[self menu]];
  67 }
  68 
  69 - (void)setJavaMenuTitle:(NSString *)title {
  70 
  71     if (title) {
  72         [ThreadUtilities performOnMainThread:@selector(setNativeMenuTitle_OnAppKitThread:) on:self withObject:title waitUntilDone:YES];
  73     }
  74 }
  75 
  76 - (void)setNativeMenuTitle_OnAppKitThread:(NSString *)title {
  77 AWT_ASSERT_APPKIT_THREAD;
  78 
  79     [fMenu setTitle:title];
  80     // If we are a submenu we need to set our name in the parent menu's menu item.
  81     NSMenu *parent = [fMenu supermenu];
  82     if (parent) {
  83         NSInteger index = [parent indexOfItemWithSubmenu:fMenu];
  84         NSMenuItem *menuItem = [parent itemAtIndex:index];
  85         [menuItem setTitle:title];
  86     }
  87 }
  88 
  89 - (void)addSeparator {
  90     // Nothing calls this, which is good because we need a CMenuItem here.
  91 }
  92 
  93 - (void)deleteJavaItem:(jint)index {
  94 
  95     [ThreadUtilities performOnMainThread:@selector(deleteNativeJavaItem_OnAppKitThread:) on:self withObject:[NSNumber numberWithInt:index] waitUntilDone:YES];
  96 }
  97 
  98 - (void)deleteNativeJavaItem_OnAppKitThread:(NSNumber *)number {
  99 AWT_ASSERT_APPKIT_THREAD;
 100 
 101     int n = [number intValue];
 102     if (n < [[self menu] numberOfItems]) {
 103         [[self menu] removeItemAtIndex:n];
 104     }
 105 }
 106 
 107 - (void)addNSMenuItemToMenu:(NSMenu *)inMenu {
 108     if (fMenuItem == nil) return;
 109     [fMenuItem setSubmenu:fMenu];
 110     [inMenu addItem:fMenuItem];
 111 }
 112 
 113 - (NSMenu *)menu {
 114     return [[fMenu retain] autorelease];
 115 }
 116 
 117 - (void)setNativeEnabled_OnAppKitThread:(NSNumber *)boolNumber {
 118 AWT_ASSERT_APPKIT_THREAD;
 119 
 120     @synchronized(self) {
 121         fIsEnabled = [boolNumber boolValue];
 122 
 123         NSMenu* supermenu = [fMenu supermenu];
 124         [[supermenu itemAtIndex:[supermenu indexOfItemWithSubmenu:fMenu]] setEnabled:fIsEnabled];
 125     }
 126 }
 127 
 128 - (NSString *)description {
 129     return [NSString stringWithFormat:@"CMenu[ %@ ]", fMenu];
 130 }
 131 
 132 @end
 133 
 134 CMenu * createCMenu (jobject cPeerObjGlobal) {
 135 
 136     __block CMenu *aCMenu = nil;
 137 
 138     [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
 139 
 140         aCMenu = [[CMenu alloc] initWithPeer:cPeerObjGlobal];
 141         // the aCMenu is released in CMenuComponent.dispose()
 142     }];
 143 
 144     if (aCMenu == nil) {
 145         return 0L;
 146     }
 147 
 148     return aCMenu;
 149 
 150 }
 151 
 152 /*
 153  * Class:     sun_lwawt_macosx_CMenu
 154  * Method:    nativeCreateSubMenu
 155  * Signature: (J)J
 156  */
 157 JNIEXPORT jlong JNICALL
 158 Java_sun_lwawt_macosx_CMenu_nativeCreateSubMenu
 159 (JNIEnv *env, jobject peer, jlong parentMenu)
 160 {
 161     CMenu *aCMenu = nil;
 162 JNI_COCOA_ENTER(env);
 163 
 164     jobject cPeerObjGlobal = (*env)->NewGlobalRef(env, peer);
 165 
 166     aCMenu = createCMenu (cPeerObjGlobal);
 167 
 168     // Add it to the parent menu
 169     [((CMenu *)jlong_to_ptr(parentMenu)) addJavaSubmenu: aCMenu];
 170 
 171 JNI_COCOA_EXIT(env);
 172 
 173     return ptr_to_jlong(aCMenu);
 174 }
 175 
 176 
 177 
 178 /*
 179  * Class:     sun_lwawt_macosx_CMenu
 180  * Method:    nativeCreateMenu
 181  * Signature: (JZ)J
 182  */
 183 JNIEXPORT jlong JNICALL
 184 Java_sun_lwawt_macosx_CMenu_nativeCreateMenu
 185 (JNIEnv *env, jobject peer,
 186         jlong parentMenuBar, jboolean isHelpMenu, jint insertLocation)
 187 {
 188     CMenu *aCMenu = nil;
 189     CMenuBar *parent = (CMenuBar *)jlong_to_ptr(parentMenuBar);
 190 JNI_COCOA_ENTER(env);
 191 
 192     jobject cPeerObjGlobal = (*env)->NewGlobalRef(env, peer);
 193 
 194     aCMenu = createCMenu (cPeerObjGlobal);
 195 
 196     // Add it to the menu bar.
 197     [parent javaAddMenu:aCMenu atIndex:insertLocation];
 198 
 199     // If the menu is already the help menu (because we are creating an entire
 200     // menu bar) we need to note that now, because we can't rely on
 201     // setHelpMenu() being called again.
 202     if (isHelpMenu == JNI_TRUE) {
 203         [parent javaSetHelpMenu: aCMenu];
 204     }
 205 
 206 JNI_COCOA_EXIT(env);
 207     return ptr_to_jlong(aCMenu);
 208 }
 209 
 210 
 211 /*
 212  * Class:     sun_lwawt_macosx_CMenu
 213  * Method:    nativeSetMenuTitle
 214  * Signature: (JLjava/lang/String;)V
 215  */
 216 JNIEXPORT void JNICALL
 217 Java_sun_lwawt_macosx_CMenu_nativeSetMenuTitle
 218 (JNIEnv *env, jobject peer, jlong menuObject, jstring label)
 219 {
 220 JNI_COCOA_ENTER(env);
 221     // Set the menu's title.
 222     [((CMenu *)jlong_to_ptr(menuObject)) setJavaMenuTitle:JavaStringToNSString(env, label)];
 223 JNI_COCOA_EXIT(env);
 224 }
 225 
 226 /*
 227  * Class:     sun_lwawt_macosx_CMenu
 228  * Method:    nativeAddSeparator
 229  * Signature: (J)V
 230  */
 231 JNIEXPORT void JNICALL
 232 Java_sun_lwawt_macosx_CMenu_nativeAddSeparator
 233 (JNIEnv *env, jobject peer, jlong menuObject)
 234 {
 235 JNI_COCOA_ENTER(env);
 236     // Add a separator item.
 237     [((CMenu *)jlong_to_ptr(menuObject))addSeparator];
 238 JNI_COCOA_EXIT(env);
 239 }
 240 
 241 /*
 242  * Class:     sun_lwawt_macosx_CMenu
 243  * Method:    nativeDeleteItem
 244  * Signature: (JI)V
 245  */
 246 JNIEXPORT void JNICALL
 247 Java_sun_lwawt_macosx_CMenu_nativeDeleteItem
 248 (JNIEnv *env, jobject peer, jlong menuObject, jint index)
 249 {
 250 JNI_COCOA_ENTER(env);
 251     // Remove the specified item.
 252     [((CMenu *)jlong_to_ptr(menuObject)) deleteJavaItem: index];
 253 JNI_COCOA_EXIT(env);
 254 }
 255 
 256 /*
 257  * Class:     sun_lwawt_macosx_CMenu
 258  * Method:    nativeGetNSMenu
 259  * Signature: (J)J
 260  */
 261 JNIEXPORT jlong JNICALL
 262 Java_sun_lwawt_macosx_CMenu_nativeGetNSMenu
 263 (JNIEnv *env, jobject peer, jlong menuObject)
 264 {
 265     NSMenu* nsMenu = NULL;
 266 
 267 JNI_COCOA_ENTER(env);
 268     // Strong retain this menu; it'll get released in Java_apple_laf_ScreenMenu_addMenuListeners
 269     nsMenu = [[((CMenu *)jlong_to_ptr(menuObject)) menu] retain];
 270 JNI_COCOA_EXIT(env);
 271 
 272     return ptr_to_jlong(nsMenu);
 273 }