J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2004 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #ifdef HEADLESS |
| 27 | #error This file should not be included in headless library |
| 28 | #endif |
| 29 | |
| 30 | #include "awt_p.h" |
| 31 | #include "color.h" |
| 32 | #include "java_awt_Menu.h" |
| 33 | #include "sun_awt_motif_MMenuPeer.h" |
| 34 | #include "java_awt_MenuBar.h" |
| 35 | #include "sun_awt_motif_MMenuBarPeer.h" |
| 36 | |
| 37 | #include "awt_MenuBar.h" |
| 38 | #include "awt_MenuComponent.h" |
| 39 | #include "awt_MenuItem.h" |
| 40 | #include "awt_Menu.h" |
| 41 | |
| 42 | #include "multi_font.h" |
| 43 | #include <jni.h> |
| 44 | #include <jni_util.h> |
| 45 | #include <Xm/CascadeBP.h> |
| 46 | |
| 47 | extern struct MenuComponentIDs menuComponentIDs; |
| 48 | extern struct MenuItemIDs menuItemIDs; |
| 49 | extern struct MMenuItemPeerIDs mMenuItemPeerIDs; |
| 50 | extern struct MMenuBarPeerIDs mMenuBarPeerIDs; |
| 51 | |
| 52 | struct MenuIDs menuIDs; |
| 53 | |
| 54 | /* |
| 55 | * Class: java_awt_Menu |
| 56 | * Method: initIDs |
| 57 | * Signature: ()V |
| 58 | */ |
| 59 | |
| 60 | /* This function gets called from the static initializer for |
| 61 | Menu.java to initialize the fieldIDs for fields that may |
| 62 | be accessed from C */ |
| 63 | |
| 64 | JNIEXPORT void JNICALL Java_java_awt_Menu_initIDs |
| 65 | (JNIEnv *env, jclass cls) |
| 66 | { |
| 67 | menuIDs.tearOff = (*env)->GetFieldID(env, cls, "tearOff", "Z"); |
| 68 | menuIDs.isHelpMenu = (*env)->GetFieldID(env, cls, "isHelpMenu", "Z"); |
| 69 | } |
| 70 | |
| 71 | /* |
| 72 | * Fix for Bug Traq 4251941 - segfault after double tear-off and close |
| 73 | * Removes the lost callback from menu item on tear-off control re-creation. |
| 74 | * Only for internal use, to be used from awtTearOffActivatedCallback |
| 75 | */ |
| 76 | static void awtTearOffShellDestroy(Widget widget, XtPointer closure, XtPointer data) { |
| 77 | if (widget != NULL ) { |
| 78 | XtSetKeyboardFocus(widget, NULL); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /* |
| 83 | * Fix for Bug Traq 4251941 - segfault after double tear-off and close |
| 84 | * This callback is added to menu after the creation. |
| 85 | * It adds the destroy callback awtTearOffShellDestroy to remove the lost focus callback on destroy |
| 86 | */ |
| 87 | static void awtTearOffActivatedCallback(Widget widget, XtPointer closure, XtPointer data) { |
| 88 | Widget shell; |
| 89 | shell = XtParent(widget); |
| 90 | if (shell != NULL && XtClass(shell) == transientShellWidgetClass) { |
| 91 | XtAddCallback(shell, XtNdestroyCallback, awtTearOffShellDestroy, widget); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | extern Boolean skipNextNotifyWhileGrabbed; |
| 96 | |
| 97 | static void |
| 98 | Menu_popDownCB(Widget w, XtPointer client_data, XtPointer calldata) |
| 99 | { |
| 100 | skipNextNotifyWhileGrabbed = True; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | |
| 105 | /* |
| 106 | * this is a MMenuPeer instance |
| 107 | */ |
| 108 | static void |
| 109 | awtJNI_CreateMenu(JNIEnv * env, jobject this, Widget menuParent) |
| 110 | { |
| 111 | int32_t argc; |
| 112 | #define MAX_ARGC 10 |
| 113 | Arg args[MAX_ARGC]; |
| 114 | char *ctitle = NULL; |
| 115 | struct MenuData *mdata; |
| 116 | struct FontData *fdata; |
| 117 | Pixel bg; |
| 118 | Pixel fg; |
| 119 | XmFontList fontlist = NULL; |
| 120 | Widget tearOff; |
| 121 | XmString mfstr = NULL; |
| 122 | XmString str = NULL; |
| 123 | jobject target; |
| 124 | jobject targetFont; |
| 125 | jobject label; |
| 126 | jobject font; |
| 127 | jboolean IsMultiFont; |
| 128 | jboolean isTearOff; |
| 129 | |
| 130 | /* perhaps this is unncessary, if awtJNI_CreateMenu is only called |
| 131 | * from a native method. |
| 132 | */ |
| 133 | if ((*env)->PushLocalFrame(env, (jint)16) < (jint)0) { |
| 134 | return; |
| 135 | } |
| 136 | |
| 137 | fdata = NULL; |
| 138 | |
| 139 | target = (*env)->GetObjectField(env, this, mMenuItemPeerIDs.target); |
| 140 | if (JNU_IsNull(env, target)) { |
| 141 | JNU_ThrowNullPointerException(env, "NullPointerException"); |
| 142 | (*env)->PopLocalFrame(env, NULL); |
| 143 | return; |
| 144 | } |
| 145 | font = JNU_CallMethodByName(env, NULL, target, "getFont_NoClientCode", |
| 146 | "()Ljava/awt/Font;").l; |
| 147 | |
| 148 | mdata = ZALLOC(MenuData); |
| 149 | JNU_SetLongFieldFromPtr(env, this, mMenuItemPeerIDs.pData, mdata); |
| 150 | if (mdata == NULL) { |
| 151 | JNU_ThrowOutOfMemoryError(env, "OutOfMemoryError"); |
| 152 | (*env)->PopLocalFrame(env, NULL); |
| 153 | return; |
| 154 | } |
| 155 | targetFont = (*env)->GetObjectField(env, target, menuComponentIDs.font); |
| 156 | if (!JNU_IsNull(env, targetFont) && |
| 157 | (fdata = awtJNI_GetFontData(env, targetFont, NULL)) != NULL) { |
| 158 | IsMultiFont = awtJNI_IsMultiFont(env, targetFont); |
| 159 | } else { |
| 160 | IsMultiFont = awtJNI_IsMultiFont(env, font); |
| 161 | } |
| 162 | |
| 163 | label = (*env)->GetObjectField(env, target, menuItemIDs.label); |
| 164 | if (JNU_IsNull(env, label)) { |
| 165 | mfstr = XmStringCreateLocalized(""); |
| 166 | ctitle = ""; |
| 167 | } else { |
| 168 | if (IsMultiFont) { |
| 169 | mfstr = awtJNI_MakeMultiFontString(env, label, font); |
| 170 | } else { |
| 171 | ctitle = (char *) JNU_GetStringPlatformChars(env, label, NULL); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | XtVaGetValues(menuParent, XmNbackground, &bg, NULL); |
| 176 | XtVaGetValues(menuParent, XmNforeground, &fg, NULL); |
| 177 | |
| 178 | argc = 0; |
| 179 | XtSetArg(args[argc], XmNbackground, bg); |
| 180 | argc++; |
| 181 | XtSetArg(args[argc], XmNforeground, fg); |
| 182 | argc++; |
| 183 | |
| 184 | XtSetArg(args[argc], XmNlabelFontList, getMotifFontList()); |
| 185 | argc++; |
| 186 | XtSetArg(args[argc], XmNbuttonFontList, getMotifFontList()); |
| 187 | argc++; |
| 188 | |
| 189 | isTearOff = (*env)->GetBooleanField(env, target, menuIDs.tearOff); |
| 190 | |
| 191 | if (isTearOff) { |
| 192 | XtSetArg(args[argc], XmNtearOffModel, XmTEAR_OFF_ENABLED); |
| 193 | argc++; |
| 194 | } |
| 195 | |
| 196 | if (IsMultiFont) { |
| 197 | DASSERT(!(argc > MAX_ARGC)); |
| 198 | mdata->itemData.comp.widget = XmCreatePulldownMenu(menuParent, |
| 199 | "", |
| 200 | args, |
| 201 | argc); |
| 202 | } else { |
| 203 | DASSERT(!(argc > MAX_ARGC)); |
| 204 | mdata->itemData.comp.widget = XmCreatePulldownMenu(menuParent, |
| 205 | ctitle, |
| 206 | args, |
| 207 | argc); |
| 208 | } |
| 209 | awt_addMenuWidget(mdata->itemData.comp.widget); |
| 210 | |
| 211 | if (isTearOff) { |
| 212 | tearOff = XmGetTearOffControl(mdata->itemData.comp.widget); |
| 213 | XtVaSetValues(tearOff, |
| 214 | XmNbackground, bg, |
| 215 | XmNforeground, fg, |
| 216 | XmNhighlightColor, fg, |
| 217 | NULL); |
| 218 | XtAddCallback(mdata->itemData.comp.widget, XmNtearOffMenuActivateCallback, |
| 219 | awtTearOffActivatedCallback, NULL); |
| 220 | } |
| 221 | argc = 0; |
| 222 | XtSetArg(args[argc], XmNsubMenuId, mdata->itemData.comp.widget); |
| 223 | argc++; |
| 224 | |
| 225 | if (IsMultiFont) { |
| 226 | XtSetArg(args[argc], XmNlabelString, mfstr); |
| 227 | } else { |
| 228 | str = XmStringCreate(ctitle, XmSTRING_DEFAULT_CHARSET); |
| 229 | XtSetArg(args[argc], XmNlabelString, str); |
| 230 | } |
| 231 | argc++; |
| 232 | XtSetArg(args[argc], XmNbackground, bg); |
| 233 | argc++; |
| 234 | XtSetArg(args[argc], XmNforeground, fg); |
| 235 | argc++; |
| 236 | |
| 237 | if (!JNU_IsNull(env, targetFont) && (fdata != NULL)) { |
| 238 | if (IsMultiFont) { |
| 239 | fontlist = awtJNI_GetFontList(env, targetFont); |
| 240 | } else { |
| 241 | fontlist = XmFontListCreate(fdata->xfont, "labelFont"); |
| 242 | } |
| 243 | XtSetArg(args[argc], XmNfontList, fontlist); |
| 244 | argc++; |
| 245 | } else { |
| 246 | if (IsMultiFont) { |
| 247 | fontlist = awtJNI_GetFontList(env, font); |
| 248 | XtSetArg(args[argc], XmNfontList, fontlist); |
| 249 | argc++; |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | if (IsMultiFont) { |
| 254 | DASSERT(!(argc > MAX_ARGC)); |
| 255 | mdata->comp.widget = XmCreateCascadeButton(menuParent, "", args, argc); |
| 256 | } else { |
| 257 | DASSERT(!(argc > MAX_ARGC)); |
| 258 | mdata->comp.widget = XmCreateCascadeButton(menuParent, ctitle, args, argc); |
| 259 | } |
| 260 | |
| 261 | if ((*env)->GetBooleanField(env, target, menuIDs.isHelpMenu)) { |
| 262 | XtVaSetValues(menuParent, |
| 263 | XmNmenuHelpWidget, mdata->comp.widget, |
| 264 | NULL); |
| 265 | } |
| 266 | |
| 267 | /** |
| 268 | * Add callback to MenuShell of the menu so we know when |
| 269 | * menu pops down. mdata->itemData.comp.widget is RowColumn, |
| 270 | * its parent - MenuShell. |
| 271 | */ |
| 272 | XtAddCallback(XtParent(mdata->itemData.comp.widget), XtNpopdownCallback, |
| 273 | Menu_popDownCB, |
| 274 | (XtPointer) |
| 275 | JNU_GetLongFieldAsPtr(env, this, |
| 276 | mMenuItemPeerIDs.jniGlobalRef)); |
| 277 | |
| 278 | /* |
| 279 | * Free resources |
| 280 | */ |
| 281 | if (!JNU_IsNull(env, targetFont)) { |
| 282 | XmFontListFree(fontlist); |
| 283 | } |
| 284 | |
| 285 | if (mfstr != NULL) { |
| 286 | XmStringFree(mfstr); |
| 287 | mfstr = NULL; |
| 288 | } |
| 289 | |
| 290 | if (str) { |
| 291 | XmStringFree(str); |
| 292 | str = NULL; |
| 293 | } |
| 294 | |
| 295 | XtManageChild(mdata->comp.widget); |
| 296 | XtSetSensitive(mdata->comp.widget, |
| 297 | (*env)->GetBooleanField(env, target, menuItemIDs.enabled) ? |
| 298 | True : False); |
| 299 | |
| 300 | if (ctitle != NULL && ctitle != "") { |
| 301 | JNU_ReleaseStringPlatformChars(env, label, (const char *) ctitle); |
| 302 | } |
| 303 | (*env)->PopLocalFrame(env, NULL); |
| 304 | } |
| 305 | |
| 306 | |
| 307 | /* |
| 308 | * Class: sun_awt_motif_MMenuPeer |
| 309 | * Method: createMenu |
| 310 | * Signature: (Lsun/awt/motif/MMenuBarPeer;)V |
| 311 | */ |
| 312 | JNIEXPORT void JNICALL Java_sun_awt_motif_MMenuPeer_createMenu |
| 313 | (JNIEnv *env, jobject this, jobject parent) |
| 314 | { |
| 315 | struct ComponentData *mbdata; |
| 316 | AwtGraphicsConfigDataPtr adata; |
| 317 | |
| 318 | AWT_LOCK(); |
| 319 | if (JNU_IsNull(env, parent)) { |
| 320 | JNU_ThrowNullPointerException(env, "NullPointerException"); |
| 321 | AWT_UNLOCK(); |
| 322 | return; |
| 323 | } |
| 324 | mbdata = (struct ComponentData *) |
| 325 | JNU_GetLongFieldAsPtr(env, parent, mMenuBarPeerIDs.pData); |
| 326 | if (mbdata == NULL) { |
| 327 | JNU_ThrowNullPointerException(env, "NullPointerException"); |
| 328 | AWT_UNLOCK(); |
| 329 | return; |
| 330 | } |
| 331 | |
| 332 | awtJNI_CreateMenu(env, this, mbdata->widget); |
| 333 | |
| 334 | AWT_UNLOCK(); |
| 335 | } |
| 336 | |
| 337 | /* |
| 338 | * Class: sun_awt_motif_MMenuPeer |
| 339 | * Method: createSubMenu |
| 340 | * Signature: (Lsun/awt/motif/MMenuPeer;)V |
| 341 | */ |
| 342 | JNIEXPORT void JNICALL Java_sun_awt_motif_MMenuPeer_createSubMenu |
| 343 | (JNIEnv *env, jobject this, jobject parent) |
| 344 | { |
| 345 | struct MenuData *mpdata; |
| 346 | AwtGraphicsConfigDataPtr adata; |
| 347 | |
| 348 | AWT_LOCK(); |
| 349 | if (JNU_IsNull(env, parent)) { |
| 350 | JNU_ThrowNullPointerException(env, "NullPointerException"); |
| 351 | AWT_UNLOCK(); |
| 352 | return; |
| 353 | } |
| 354 | mpdata = (struct MenuData *) |
| 355 | JNU_GetLongFieldAsPtr(env, parent, mMenuItemPeerIDs.pData); |
| 356 | if (mpdata == NULL) { |
| 357 | JNU_ThrowNullPointerException(env, "NullPointerException"); |
| 358 | AWT_UNLOCK(); |
| 359 | return; |
| 360 | } |
| 361 | |
| 362 | awtJNI_CreateMenu(env, this, mpdata->itemData.comp.widget); |
| 363 | |
| 364 | AWT_UNLOCK(); |
| 365 | } |
| 366 | |
| 367 | /* |
| 368 | * Class: sun_awt_motif_MMenuPeer |
| 369 | * Method: pDispose |
| 370 | * Signature: ()V |
| 371 | */ |
| 372 | JNIEXPORT void JNICALL Java_sun_awt_motif_MMenuPeer_pDispose |
| 373 | (JNIEnv *env, jobject this) |
| 374 | { |
| 375 | struct MenuData *mdata; |
| 376 | Widget parent; |
| 377 | Boolean isParentManaged = False; |
| 378 | |
| 379 | AWT_LOCK(); |
| 380 | |
| 381 | mdata = (struct MenuData *) |
| 382 | JNU_GetLongFieldAsPtr(env, this, mMenuItemPeerIDs.pData); |
| 383 | if (mdata == NULL) { |
| 384 | AWT_UNLOCK(); |
| 385 | return; |
| 386 | } |
| 387 | awt_delMenuWidget(mdata->itemData.comp.widget); |
| 388 | XtUnmanageChild(mdata->comp.widget); |
| 389 | awt_util_consumeAllXEvents(mdata->itemData.comp.widget); |
| 390 | awt_util_consumeAllXEvents(mdata->comp.widget); |
| 391 | |
| 392 | parent = XtParent(mdata->itemData.comp.widget); |
| 393 | if (parent != NULL && XtIsManaged(parent)) { |
| 394 | isParentManaged = True; |
| 395 | XtUnmanageChild(parent); |
| 396 | } |
| 397 | |
| 398 | XtDestroyWidget(mdata->itemData.comp.widget); |
| 399 | |
| 400 | if (isParentManaged) { |
| 401 | XtManageChild(parent); |
| 402 | } |
| 403 | |
| 404 | XtDestroyWidget(mdata->comp.widget); |
| 405 | free((void *) mdata); |
| 406 | AWT_UNLOCK(); |
| 407 | } |