1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
3 * The contents of this file are subject to the Mozilla Public
4 * License Version 1.1 (the "License"); you may not use this file
5 * except in compliance with the License. You may obtain a copy of
6 * the License at http://www.mozilla.org/MPL/
8 * Software distributed under the License is distributed on an "AS
9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
10 * implied. See the License for the specific language governing
11 * rights and limitations under the License.
13 * The Original Code is mozilla.org code.
15 * The Initial Developer of the Original Code is Netscape
16 * Communications Corporation. Portions created by Netscape are
17 * Copyright (C) 1998 Netscape Communications Corporation. All
21 * Stephen Mak <smak@sun.com>
27 * Netscape Client Plugin API
28 * - Wrapper function to interface with the Netscape Navigator
30 * dp Suresh <dp@netscape.com>
32 *----------------------------------------------------------------------
34 * YOU WILL NOT NEED TO EDIT THIS FILE.
35 * TO NETSCAPE DEVELOPERS:
36 * OF COURSE I WILL NEED TO EDIT THIS FILE, YOU BORKED IT ALL AROUND YOU
37 * IGNORANT FOOLS -- sam
38 *----------------------------------------------------------------------
50 * Define PLUGIN_TRACE to have the wrapper functions print
51 * messages to stderr whenever they are called.
56 #define PLUGINDEBUGSTR(msg) fprintf(stderr, "%s\n", msg)
58 #define PLUGINDEBUGSTR(msg)
62 /***********************************************************************
66 ***********************************************************************/
68 static NPNetscapeFuncs gNetscapeFuncs; /* Netscape Function table */
71 /***********************************************************************
73 * Wrapper functions : plugin calling Netscape Navigator
75 * These functions let the plugin developer just call the APIs
76 * as documented and defined in npapi.h, without needing to know
77 * about the function table and call macros in npupp.h.
79 ***********************************************************************/
82 NPN_Version(int* plugin_major, int* plugin_minor,
83 int* netscape_major, int* netscape_minor)
85 *plugin_major = NP_VERSION_MAJOR;
86 *plugin_minor = NP_VERSION_MINOR;
88 /* Major version is in high byte */
89 *netscape_major = gNetscapeFuncs.version >> 8;
90 /* Minor version is in low byte */
91 *netscape_minor = gNetscapeFuncs.version & 0xFF;
95 NPN_GetValue(NPP instance, NPNVariable variable, void *r_value)
97 return CallNPN_GetValueProc(gNetscapeFuncs.getvalue,
98 instance, variable, r_value);
102 NPN_SetValue(NPP instance, NPPVariable variable, void *value)
104 return CallNPN_SetValueProc(gNetscapeFuncs.setvalue,
105 instance, variable, value);
109 NPN_GetURL(NPP instance, const char* url, const char* window)
111 return CallNPN_GetURLProc(gNetscapeFuncs.geturl, instance, url, window);
115 NPN_GetURLNotify(NPP instance, const char* url, const char* window, void* notifyData)
117 return CallNPN_GetURLNotifyProc(gNetscapeFuncs.geturlnotify, instance, url, window, notifyData);
121 NPN_PostURL(NPP instance, const char* url, const char* window,
122 uint32 len, const char* buf, NPBool file)
124 return CallNPN_PostURLProc(gNetscapeFuncs.posturl, instance,
125 url, window, len, buf, file);
129 NPN_PostURLNotify(NPP instance, const char* url, const char* window, uint32 len,
130 const char* buf, NPBool file, void* notifyData)
132 return CallNPN_PostURLNotifyProc(gNetscapeFuncs.posturlnotify,
133 instance, url, window, len, buf, file, notifyData);
137 NPN_RequestRead(NPStream* stream, NPByteRange* rangeList)
139 return CallNPN_RequestReadProc(gNetscapeFuncs.requestread,
144 NPN_NewStream(NPP instance, NPMIMEType type, const char *window,
145 NPStream** stream_ptr)
147 return CallNPN_NewStreamProc(gNetscapeFuncs.newstream, instance,
148 type, window, stream_ptr);
152 NPN_Write(NPP instance, NPStream* stream, int32 len, void* buffer)
154 return CallNPN_WriteProc(gNetscapeFuncs.write, instance,
155 stream, len, buffer);
159 NPN_DestroyStream(NPP instance, NPStream* stream, NPError reason)
161 return CallNPN_DestroyStreamProc(gNetscapeFuncs.destroystream,
162 instance, stream, reason);
166 NPN_Status(NPP instance, const char* message)
168 CallNPN_StatusProc(gNetscapeFuncs.status, instance, message);
172 NPN_UserAgent(NPP instance)
174 return CallNPN_UserAgentProc(gNetscapeFuncs.uagent, instance);
178 NPN_MemAlloc(uint32 size)
180 return CallNPN_MemAllocProc(gNetscapeFuncs.memalloc, size);
183 void NPN_MemFree(void* ptr)
185 CallNPN_MemFreeProc(gNetscapeFuncs.memfree, ptr);
188 uint32 NPN_MemFlush(uint32 size)
190 return CallNPN_MemFlushProc(gNetscapeFuncs.memflush, size);
193 void NPN_ReloadPlugins(NPBool reloadPages)
195 CallNPN_ReloadPluginsProc(gNetscapeFuncs.reloadplugins, reloadPages);
198 JRIEnv* NPN_GetJavaEnv()
200 return CallNPN_GetJavaEnvProc(gNetscapeFuncs.getJavaEnv);
203 jref NPN_GetJavaPeer(NPP instance)
205 return CallNPN_GetJavaPeerProc(gNetscapeFuncs.getJavaPeer,
210 NPN_InvalidateRect(NPP instance, NPRect *invalidRect)
212 CallNPN_InvalidateRectProc(gNetscapeFuncs.invalidaterect, instance,
217 NPN_InvalidateRegion(NPP instance, NPRegion invalidRegion)
219 CallNPN_InvalidateRegionProc(gNetscapeFuncs.invalidateregion, instance,
224 NPN_ForceRedraw(NPP instance)
226 CallNPN_ForceRedrawProc(gNetscapeFuncs.forceredraw, instance);
231 /***********************************************************************
233 * Wrapper functions : Netscape Navigator -> plugin
235 * These functions let the plugin developer just create the APIs
236 * as documented and defined in npapi.h, without needing to
237 * install those functions in the function table or worry about
238 * setting up globals for 68K plugins.
240 ***********************************************************************/
243 Private_New(NPMIMEType pluginType, NPP instance, uint16 mode,
244 int16 argc, char* argn[], char* argv[], NPSavedData* saved)
247 PLUGINDEBUGSTR("New");
248 ret = NPP_New(pluginType, instance, mode, argc, argn, argv, saved);
253 Private_Destroy(NPP instance, NPSavedData** save)
255 PLUGINDEBUGSTR("Destroy");
256 return NPP_Destroy(instance, save);
260 Private_SetWindow(NPP instance, NPWindow* window)
263 PLUGINDEBUGSTR("SetWindow");
264 err = NPP_SetWindow(instance, window);
269 Private_NewStream(NPP instance, NPMIMEType type, NPStream* stream,
270 NPBool seekable, uint16* stype)
273 PLUGINDEBUGSTR("NewStream");
274 err = NPP_NewStream(instance, type, stream, seekable, stype);
279 Private_WriteReady(NPP instance, NPStream* stream)
282 PLUGINDEBUGSTR("WriteReady");
283 result = NPP_WriteReady(instance, stream);
288 Private_Write(NPP instance, NPStream* stream, int32 offset, int32 len,
292 PLUGINDEBUGSTR("Write");
293 result = NPP_Write(instance, stream, offset, len, buffer);
298 Private_StreamAsFile(NPP instance, NPStream* stream, const char* fname)
300 PLUGINDEBUGSTR("StreamAsFile");
301 NPP_StreamAsFile(instance, stream, fname);
306 Private_DestroyStream(NPP instance, NPStream* stream, NPError reason)
309 PLUGINDEBUGSTR("DestroyStream");
310 err = NPP_DestroyStream(instance, stream, reason);
315 Private_URLNotify(NPP instance, const char* url,
316 NPReason reason, void* notifyData)
319 PLUGINDEBUGSTR("URLNotify");
320 NPP_URLNotify(instance, url, reason, notifyData);
326 Private_Print(NPP instance, NPPrint* platformPrint)
328 PLUGINDEBUGSTR("Print");
329 NPP_Print(instance, platformPrint);
333 Private_GetValue(NPP instance, NPPVariable variable, void *r_value)
335 PLUGINDEBUGSTR("GetValue");
336 return NPP_GetValue(instance, variable, r_value);
340 Private_GetJavaClass(void)
342 jref clazz = NPP_GetJavaClass();
344 JRIEnv* env = NPN_GetJavaEnv();
345 return JRI_NewGlobalRef(env, clazz);
350 /***********************************************************************
352 * These functions are located automagically by netscape.
354 ***********************************************************************/
357 * NP_GetMIMEDescription
358 * - Netscape needs to know about this symbol
359 * - Netscape uses the return value to identify when an object instance
360 * of this plugin should be created.
363 NP_GetMIMEDescription(void)
365 return NPP_GetMIMEDescription();
369 * NP_GetValue [optional]
370 * - Netscape needs to know about this symbol.
371 * - Interfaces with plugin to get values for predefined variables
372 * that the navigator needs.
375 NP_GetValue(void *future, NPPVariable variable, void *value)
377 return NPP_GetValue(future, variable, value);
382 * - Netscape needs to know about this symbol.
383 * - It calls this function after looking up its symbol before it
384 * is about to create the first ever object of this kind.
387 * nsTable - The netscape function table. If developers just use these
388 * wrappers, they dont need to worry about all these function
392 * - This functions needs to fill the plugin function table
393 * pluginFuncs and return it. Netscape Navigator plugin
394 * library will use this function table to call the plugin.
398 NP_Initialize(NPNetscapeFuncs* nsTable, NPPluginFuncs* pluginFuncs)
400 NPError err = NPERR_NO_ERROR;
402 PLUGINDEBUGSTR("NP_Initialize");
404 /* validate input parameters */
406 if ((nsTable == NULL) || (pluginFuncs == NULL))
407 err = NPERR_INVALID_FUNCTABLE_ERROR;
410 * Check the major version passed in Netscape's function table.
411 * We won't load if the major version is newer than what we expect.
412 * Also check that the function tables passed in are big enough for
413 * all the functions we need (they could be bigger, if Netscape added
414 * new APIs, but that's OK with us -- we'll just ignore them).
418 if (err == NPERR_NO_ERROR) {
419 if ((nsTable->version >> 8) > NP_VERSION_MAJOR)
420 err = NPERR_INCOMPATIBLE_VERSION_ERROR;
421 if (nsTable->size < sizeof(NPNetscapeFuncs))
422 err = NPERR_INVALID_FUNCTABLE_ERROR;
423 if (pluginFuncs->size < sizeof(NPPluginFuncs))
424 err = NPERR_INVALID_FUNCTABLE_ERROR;
428 if (err == NPERR_NO_ERROR) {
430 * Copy all the fields of Netscape function table into our
431 * copy so we can call back into Netscape later. Note that
432 * we need to copy the fields one by one, rather than assigning
433 * the whole structure, because the Netscape function table
434 * could actually be bigger than what we expect.
436 gNetscapeFuncs.version = nsTable->version;
437 gNetscapeFuncs.size = nsTable->size;
438 gNetscapeFuncs.posturl = nsTable->posturl;
439 gNetscapeFuncs.geturl = nsTable->geturl;
440 gNetscapeFuncs.geturlnotify = nsTable->geturlnotify;
441 gNetscapeFuncs.requestread = nsTable->requestread;
442 gNetscapeFuncs.newstream = nsTable->newstream;
443 gNetscapeFuncs.write = nsTable->write;
444 gNetscapeFuncs.destroystream = nsTable->destroystream;
445 gNetscapeFuncs.status = nsTable->status;
446 gNetscapeFuncs.uagent = nsTable->uagent;
447 gNetscapeFuncs.memalloc = nsTable->memalloc;
448 gNetscapeFuncs.memfree = nsTable->memfree;
449 gNetscapeFuncs.memflush = nsTable->memflush;
450 gNetscapeFuncs.reloadplugins = nsTable->reloadplugins;
451 gNetscapeFuncs.getJavaEnv = nsTable->getJavaEnv;
452 gNetscapeFuncs.getJavaPeer = nsTable->getJavaPeer;
453 gNetscapeFuncs.getvalue = nsTable->getvalue;
456 * Set up the plugin function table that Netscape will use to
457 * call us. Netscape needs to know about our version and size
458 * and have a UniversalProcPointer for every function we
461 pluginFuncs->version = (NP_VERSION_MAJOR << 8) + NP_VERSION_MINOR;
462 pluginFuncs->size = sizeof(NPPluginFuncs);
463 pluginFuncs->newp = NewNPP_NewProc(Private_New);
464 pluginFuncs->destroy = NewNPP_DestroyProc(Private_Destroy);
465 pluginFuncs->setwindow = NewNPP_SetWindowProc(Private_SetWindow);
466 pluginFuncs->newstream = NewNPP_NewStreamProc(Private_NewStream);
467 pluginFuncs->destroystream = NewNPP_DestroyStreamProc(Private_DestroyStream);
468 pluginFuncs->asfile = NewNPP_StreamAsFileProc(Private_StreamAsFile);
469 pluginFuncs->writeready = NewNPP_WriteReadyProc(Private_WriteReady);
470 pluginFuncs->write = NewNPP_WriteProc(Private_Write);
471 pluginFuncs->print = NewNPP_PrintProc(Private_Print);
472 pluginFuncs->urlnotify = NewNPP_URLNotifyProc(Private_URLNotify);
473 pluginFuncs->event = NULL;
474 pluginFuncs->javaClass = Private_GetJavaClass();
475 pluginFuncs->getvalue = NewNPP_GetValueProc(Private_GetValue);
477 err = NPP_Initialize();
484 * NP_Shutdown [optional]
485 * - Netscape needs to know about this symbol.
486 * - It calls this function after looking up its symbol after
487 * the last object of this kind has been destroyed.
493 PLUGINDEBUGSTR("NP_Shutdown");
495 return NPERR_NO_ERROR;