J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2005 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 | |
| 32 | #include <X11/Xproto.h> |
| 33 | #include <X11/Xlib.h> |
| 34 | #include <X11/Xatom.h> |
| 35 | #include <Xm/MwmUtil.h> |
| 36 | |
| 37 | /* JNI headers */ |
| 38 | #include "java_awt_Frame.h" /* for frame state constants */ |
| 39 | |
| 40 | #include "awt_wm.h" |
| 41 | #include "awt_util.h" /* for X11 error handling macros */ |
| 42 | #include "awt_xembed.h" |
| 43 | #include "awt_MToolkit.h" |
| 44 | #include "awt_DataTransferer.h" /* for DECLARE_XXX macros */ |
| 45 | |
| 46 | #ifdef DOTRACE |
| 47 | #define MTRACE(param) fprintf(myerr, param) |
| 48 | #define MTRACEP1(format, p1) fprintf(myerr, format, p1) |
| 49 | #define MTRACEP2(format, p1, p2) fprintf(myerr, format, p1, p2) |
| 50 | #define MTRACEP3(format, p1, p2, p3) fprintf(myerr, format, p1, p2, p3) |
| 51 | #define MTRACEP4(format, p1, p2, p3, p4) fprintf(myerr, format, p1, p2, p3, p4) |
| 52 | #define MTRACEP5(format, p1, p2, p3, p4, p5) fprintf(myerr, format, p1, p2, p3, p4, p5) |
| 53 | #define MTRACEP6(format, p1, p2, p3, p4, p5, p6) fprintf(myerr, format, p1, p2, p3, p4, p5, p6) |
| 54 | #define MTRACEP7(format, p1, p2, p3, p4, p5, p6, p7) fprintf(myerr, format, p1, p2, p3, p4, p5, p6, p7) |
| 55 | #else |
| 56 | #define MTRACE(param) |
| 57 | #define MTRACEP1(format, p1) |
| 58 | #define MTRACEP2(format, p1, p2) |
| 59 | #define MTRACEP3(format, p1, p2, p3) |
| 60 | #define MTRACEP4(format, p1, p2, p3, p4) |
| 61 | #define MTRACEP5(format, p1, p2, p3, p4, p5) |
| 62 | #define MTRACEP6(format, p1, p2, p3, p4, p5, p6) |
| 63 | #define MTRACEP7(format, p1, p2, p3, p4, p5, p6, p7) |
| 64 | #endif |
| 65 | |
| 66 | #ifdef DOTRACE |
| 67 | static FILE* myerr; |
| 68 | #endif |
| 69 | |
| 70 | static Window getParent(Window window); |
| 71 | static Window getEmbedder(Window client); |
| 72 | static jmethodID handleFocusInMID; |
| 73 | |
| 74 | const char * error_msg = "UNKNOWN XEMBED MESSAGE"; |
| 75 | |
| 76 | const char * xembed_strs[] = { |
| 77 | "EMBEDDED_NOTIFY", |
| 78 | "WINDOW_ACTIVATE", |
| 79 | "WINDOW_DEACTIVATE", |
| 80 | "REQUEST_FOCUS", |
| 81 | "FOCUS_IN", |
| 82 | "FOCUS_OUT", |
| 83 | "FOCUS_NEXT", |
| 84 | "FOCUS_PREV" , |
| 85 | "GRAB_KEY", |
| 86 | "UNGRAB_KEY", |
| 87 | "MODALITY_ON" , |
| 88 | "MODALITY_OFF", |
| 89 | "REGISTER_ACCELERATOR", |
| 90 | "UNREGISTER_ACCELERATOR", |
| 91 | "ACTIVATE_ACCELERATOR" |
| 92 | }; |
| 93 | |
| 94 | const char * |
| 95 | msg_to_str(int msg) { |
| 96 | if (msg >= 0 && msg <= XEMBED_LAST_MSG) { |
| 97 | return xembed_strs[msg]; |
| 98 | } else { |
| 99 | return error_msg; |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | DECLARE_JAVA_CLASS(MEmbeddedFramePeerClass, "sun/awt/motif/MEmbeddedFramePeer"); |
| 104 | |
| 105 | typedef struct _xembed_info { |
| 106 | CARD32 version; |
| 107 | CARD32 flags; |
| 108 | } xembed_info; |
| 109 | |
| 110 | typedef struct _xembed_data { |
| 111 | struct FrameData * wdata; // pointer to EmbeddedFrame wdata |
| 112 | Window client; // pointer to plugin intermediate widget, XEmbed client |
| 113 | Boolean active; // whether xembed is active for this client |
| 114 | Boolean applicationActive; // whether the embedding application is active |
| 115 | Window embedder; // Window ID of the embedder |
| 116 | struct _xembed_data * next; |
| 117 | } xembed_data, * pxembed_data; |
| 118 | |
| 119 | static pxembed_data xembed_list = NULL; |
| 120 | |
| 121 | static pxembed_data |
| 122 | getData(Window client) { |
| 123 | pxembed_data temp = xembed_list; |
| 124 | while (temp != NULL) { |
| 125 | if (temp->client == client) { |
| 126 | return temp; |
| 127 | } |
| 128 | temp = temp->next; |
| 129 | } |
| 130 | return NULL; |
| 131 | } |
| 132 | |
| 133 | static pxembed_data |
| 134 | getDataByFrame(struct FrameData* wdata) { |
| 135 | pxembed_data temp = xembed_list; |
| 136 | while (temp != NULL) { |
| 137 | if (temp->wdata == wdata) { |
| 138 | return temp; |
| 139 | } |
| 140 | temp = temp->next; |
| 141 | } |
| 142 | return NULL; |
| 143 | } |
| 144 | |
| 145 | static pxembed_data |
| 146 | addData(Window client) { |
| 147 | xembed_data * data = malloc(sizeof(xembed_data)); |
| 148 | memset(data, 0, sizeof(xembed_data)); |
| 149 | data->client = client; |
| 150 | data->next = xembed_list; |
| 151 | xembed_list = data; |
| 152 | return data; |
| 153 | } |
| 154 | |
| 155 | static void |
| 156 | removeData(Window client) { |
| 157 | pxembed_data * temp = &xembed_list; |
| 158 | while (*temp != NULL) { |
| 159 | if ((*temp)->client == client) { |
| 160 | xembed_data * data = *temp; |
| 161 | *temp = (*temp)->next; |
| 162 | free(data); |
| 163 | return; |
| 164 | } |
| 165 | temp = &(*temp)->next; |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | static Atom XA_XEmbedInfo; |
| 170 | static Atom XA_XEmbed; |
| 171 | |
| 172 | void |
| 173 | init_xembed() { |
| 174 | XA_XEmbedInfo = XInternAtom(awt_display, "_XEMBED_INFO", False); |
| 175 | XA_XEmbed = XInternAtom(awt_display, "_XEMBED", False); |
| 176 | #ifdef DOTRACE |
| 177 | myerr = fopen("xembedclient.log","w"); |
| 178 | #endif |
| 179 | } |
| 180 | |
| 181 | static Time |
| 182 | getCurrentServerTime() { |
| 183 | return awt_util_getCurrentServerTime(); |
| 184 | } |
| 185 | |
| 186 | |
| 187 | void |
| 188 | sendMessageHelper(Window window, int message, long detail, |
| 189 | long data1, long data2) |
| 190 | { |
| 191 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); |
| 192 | XEvent ev; |
| 193 | XClientMessageEvent * req = (XClientMessageEvent*)&ev; |
| 194 | memset(&ev, 0, sizeof(ev)); |
| 195 | |
| 196 | req->type = ClientMessage; |
| 197 | req->window = window; |
| 198 | req->message_type = XA_XEmbed; |
| 199 | req->format = 32; |
| 200 | req->data.l[0] = getCurrentServerTime(); |
| 201 | req->data.l[1] = message; |
| 202 | req->data.l[2] = detail; |
| 203 | req->data.l[3] = data1; |
| 204 | req->data.l[4] = data2; |
| 205 | AWT_LOCK(); |
| 206 | XSendEvent(awt_display, window, False, NoEventMask, &ev); |
| 207 | AWT_UNLOCK(); |
| 208 | } |
| 209 | |
| 210 | void |
| 211 | sendMessage(Window window, int message) { |
| 212 | sendMessageHelper(window, message, 0, 0, 0); |
| 213 | } |
| 214 | |
| 215 | |
| 216 | static Window |
| 217 | getParent(Window window) { |
| 218 | Window root, parent = None, *children = NULL; |
| 219 | unsigned int count; |
| 220 | XQueryTree(awt_display, window, &root, &parent, &children, &count); |
| 221 | if (children != NULL) { |
| 222 | XFree(children); |
| 223 | } |
| 224 | return parent; |
| 225 | } |
| 226 | |
| 227 | static Window |
| 228 | getEmbedder(Window client) { |
| 229 | return getParent(client); |
| 230 | } |
| 231 | |
| 232 | |
| 233 | static void |
| 234 | handleFocusIn(struct FrameData* wdata, int detail) { |
| 235 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); |
| 236 | struct WidgetInfo* winfo; |
| 237 | MTRACE("HandleFocusIn\n"); |
| 238 | winfo = findWidgetInfo(wdata->winData.comp.widget); |
| 239 | if (winfo != NULL) { |
| 240 | jobject peer = winfo->peer; |
| 241 | if (handleFocusInMID == NULL) { |
| 242 | jclass clazz = (*env)->FindClass(env, "sun/awt/motif/MEmbeddedFramePeer"); |
| 243 | DASSERT(clazz != NULL); |
| 244 | handleFocusInMID = (*env)->GetMethodID(env, clazz, "handleFocusIn", "(I)V"); |
| 245 | DASSERT(handleFocusInMID != NULL); |
| 246 | if (clazz != NULL) { |
| 247 | (*env)->DeleteLocalRef(env, clazz); |
| 248 | } |
| 249 | } |
| 250 | if (handleFocusInMID != NULL) { |
| 251 | (*env)->CallVoidMethod(env, peer, handleFocusInMID, (jint)detail); |
| 252 | } |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | static void |
| 257 | genWindowFocus(struct FrameData *wdata, Boolean gain) { |
| 258 | XEvent ev; |
| 259 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); |
| 260 | memset(&ev, 0, sizeof(ev)); |
| 261 | |
| 262 | ev.type = (gain?FocusIn:FocusOut); |
| 263 | ev.xany.send_event = True; |
| 264 | ev.xany.display = awt_display; |
| 265 | ev.xfocus.mode = NotifyNormal; |
| 266 | ev.xfocus.detail = NotifyNonlinear; |
| 267 | ev.xfocus.window = XtWindow(wdata->winData.shell); |
| 268 | awt_put_back_event(env, &ev); |
| 269 | } |
| 270 | |
| 271 | extern Boolean skipNextFocusIn; |
| 272 | |
| 273 | static void |
| 274 | callNotifyStarted(JNIEnv* env, jobject peer) { |
| 275 | DECLARE_VOID_JAVA_METHOD(notifyStartedMID, MEmbeddedFramePeerClass, |
| 276 | "notifyStarted", "()V"); |
| 277 | |
| 278 | (*env)->CallVoidMethod(env, peer, notifyStartedMID); |
| 279 | } |
| 280 | |
| 281 | void |
| 282 | xembed_eventHandler(XEvent *event) |
| 283 | { |
| 284 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); |
| 285 | struct FrameData *wdata; |
| 286 | xembed_data * data; |
| 287 | |
| 288 | data = getData(event->xany.window); |
| 289 | if (data == NULL) { |
| 290 | MTRACEP1("No XEMBED client registered for this window %x\n", event->xany.window); |
| 291 | if (event->xany.type == ClientMessage) { |
| 292 | MTRACEP7("Unprocessed handleClientMessage: type=%d 0=%ld 1=%ld(%s) 2=%ld 3=%ld 4=%ld\n", |
| 293 | event->xclient.message_type, event->xclient.data.l[0], |
| 294 | event->xclient.data.l[1], msg_to_str(event->xclient.data.l[1]), |
| 295 | event->xclient.data.l[2], |
| 296 | event->xclient.data.l[3], event->xclient.data.l[4]); |
| 297 | } |
| 298 | return; |
| 299 | } |
| 300 | |
| 301 | wdata = data->wdata; |
| 302 | |
| 303 | if (event->xany.type == ClientMessage) { |
| 304 | MTRACEP6("handleClientMessage: type=%d 0=%ld 1=%ld 2=%ld 3=%ld 4=%ld\n", |
| 305 | event->xclient.message_type, event->xclient.data.l[0], |
| 306 | event->xclient.data.l[1], event->xclient.data.l[2], |
| 307 | event->xclient.data.l[3], event->xclient.data.l[4]); |
| 308 | // Probably a message from embedder |
| 309 | if (event->xclient.message_type == XA_XEmbed) { |
| 310 | // XEmbed message, data[1] contains message |
| 311 | switch ((int)event->xclient.data.l[1]) { |
| 312 | case XEMBED_EMBEDDED_NOTIFY: |
| 313 | MTRACE("EMBEDDED_NOTIFY\n"); |
| 314 | data->active = True; |
| 315 | data->embedder = getEmbedder(data->client); |
| 316 | // If Frame has not been reparented already we should "reparent" |
| 317 | // it manually |
| 318 | if (!(wdata->reparented)) { |
| 319 | wdata->reparented = True; |
| 320 | // in XAWT we also update WM_NORMAL_HINTS here. |
| 321 | } |
| 322 | { |
| 323 | struct WidgetInfo* winfo = |
| 324 | findWidgetInfo(wdata->winData.comp.widget); |
| 325 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_4); |
| 326 | if (winfo != NULL) { |
| 327 | callNotifyStarted(env, winfo->peer); |
| 328 | } |
| 329 | } |
| 330 | MTRACE("Embedded notify in client\n"); |
| 331 | break; |
| 332 | case XEMBED_WINDOW_DEACTIVATE: |
| 333 | MTRACE("DEACTIVATE\n"); |
| 334 | data->applicationActive = False; |
| 335 | break; |
| 336 | case XEMBED_WINDOW_ACTIVATE: |
| 337 | MTRACE("ACTIVATE\n"); |
| 338 | data->applicationActive = True; |
| 339 | break; |
| 340 | case XEMBED_FOCUS_IN: |
| 341 | MTRACE("FOCUS IN\n"); |
| 342 | skipNextFocusIn = False; |
| 343 | handleFocusIn(wdata, (int)(event->xclient.data.l[2])); |
| 344 | genWindowFocus(wdata, True); |
| 345 | break; |
| 346 | case XEMBED_FOCUS_OUT: |
| 347 | MTRACE("FOCUS OUT\n"); |
| 348 | genWindowFocus(wdata, False); |
| 349 | break; |
| 350 | } |
| 351 | } |
| 352 | } else if (event->xany.type == ReparentNotify) { |
| 353 | data->embedder = event->xreparent.parent; |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | void |
| 358 | notify_ready(Window client) { |
| 359 | sendMessage(getEmbedder(client), _SUN_XEMBED_START); |
| 360 | } |
| 361 | |
| 362 | void |
| 363 | install_xembed(Widget client_widget, struct FrameData* wdata) { |
| 364 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); |
| 365 | xembed_info info = {XEMBED_VERSION, XEMBED_MAPPED}; |
| 366 | Window client = XtWindow(client_widget); |
| 367 | xembed_data * data; |
| 368 | |
| 369 | AWT_LOCK(); |
| 370 | data = addData(client); |
| 371 | data->wdata = wdata; |
| 372 | |
| 373 | // Install event handler for messages from embedder |
| 374 | XSelectInput(awt_display, client, StructureNotifyMask); |
| 375 | |
| 376 | // Install XEMBED_INFO information |
| 377 | XChangeProperty(awt_display, client, XA_XEmbedInfo, |
| 378 | XA_XEmbedInfo, 32, PropModeReplace, |
| 379 | (unsigned char*)&info, 2); |
| 380 | MTRACE("Installing xembed\n"); |
| 381 | |
| 382 | notify_ready(client); |
| 383 | |
| 384 | AWT_UNLOCK(); |
| 385 | } |
| 386 | |
| 387 | void |
| 388 | deinstall_xembed(struct FrameData* wdata) { |
| 389 | xembed_data * data = getDataByFrame(wdata); |
| 390 | |
| 391 | if (data != NULL) { |
| 392 | removeData(data->client); |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | void |
| 397 | requestXEmbedFocus(struct FrameData * wdata) { |
| 398 | xembed_data * data = getDataByFrame(wdata); |
| 399 | |
| 400 | if (data != NULL) { |
| 401 | if (data->active && data->applicationActive) { |
| 402 | sendMessage(data->embedder, XEMBED_REQUEST_FOCUS); |
| 403 | } |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | Boolean |
| 408 | isXEmbedActive(struct FrameData * wdata) { |
| 409 | xembed_data * data = getDataByFrame(wdata); |
| 410 | return (data != NULL && data->active); |
| 411 | } |
| 412 | |
| 413 | Boolean |
| 414 | isXEmbedActiveByWindow(Window client) { |
| 415 | xembed_data * data = getData(client); |
| 416 | return (data != NULL && data->active); |
| 417 | } |
| 418 | |
| 419 | |
| 420 | Boolean |
| 421 | isXEmbedApplicationActive(struct FrameData * wdata) { |
| 422 | xembed_data * data = getDataByFrame(wdata); |
| 423 | return (data != NULL && data->applicationActive); |
| 424 | } |
| 425 | |
| 426 | void |
| 427 | xembed_traverse_out(struct FrameData * wdata, jboolean direction) { |
| 428 | xembed_data * data = getDataByFrame(wdata); |
| 429 | sendMessage(data->embedder, (direction == JNI_TRUE)?XEMBED_FOCUS_NEXT:XEMBED_FOCUS_PREV); |
| 430 | } |