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1 : /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 : *
3 : * ***** BEGIN LICENSE BLOCK *****
4 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 : *
6 : * The contents of this file are subject to the Mozilla Public License Version
7 : * 1.1 (the "License"); you may not use this file except in compliance with
8 : * the License. You may obtain a copy of the License at
9 : * http://www.mozilla.org/MPL/
10 : *
11 : * Software distributed under the License is distributed on an "AS IS" basis,
12 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 : * for the specific language governing rights and limitations under the
14 : * License.
15 : *
16 : * The Original Code is mozilla.org code.
17 : *
18 : * The Initial Developer of the Original Code is
19 : * Netscape Communications Corporation.
20 : * Portions created by the Initial Developer are Copyright (C) 1998
21 : * the Initial Developer. All Rights Reserved.
22 : *
23 : * Contributor(s):
24 : * Stephen Mak <smak@sun.com>
25 : *
26 : * Alternatively, the contents of this file may be used under the terms of
27 : * either of the GNU General Public License Version 2 or later (the "GPL"),
28 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
29 : * in which case the provisions of the GPL or the LGPL are applicable instead
30 : * of those above. If you wish to allow use of your version of this file only
31 : * under the terms of either the GPL or the LGPL, and not to allow others to
32 : * use your version of this file under the terms of the MPL, indicate your
33 : * decision by deleting the provisions above and replace them with the notice
34 : * and other provisions required by the GPL or the LGPL. If you do not delete
35 : * the provisions above, a recipient may use your version of this file under
36 : * the terms of any one of the MPL, the GPL or the LGPL.
37 : *
38 : * ***** END LICENSE BLOCK ***** */
39 :
40 : /*
41 : * npunix.c
42 : *
43 : * Netscape Client Plugin API
44 : * - Wrapper function to interface with the Netscape Navigator
45 : *
46 : * dp Suresh <dp@netscape.com>
47 : *
48 : *----------------------------------------------------------------------
49 : * PLUGIN DEVELOPERS:
50 : * YOU WILL NOT NEED TO EDIT THIS FILE.
51 : *----------------------------------------------------------------------
52 : */
53 :
54 : #include <sal/types.h> // just for SAL_DLLPUBLIC_EXPORT
55 :
56 : #define XP_UNIX 1
57 :
58 : #include <stdio.h>
59 : #include "npapi.h"
60 : #include "npupp.h"
61 : #include "plugin.h"
62 :
63 : /*
64 : * Define PLUGIN_TRACE to have the wrapper functions print
65 : * messages to stderr whenever they are called.
66 : */
67 :
68 : #ifdef PLUGIN_TRACE
69 : #include <stdio.h>
70 : #define PLUGINDEBUGSTR(msg) fprintf(stderr, "%s\n", msg)
71 : #else
72 : #define PLUGINDEBUGSTR(msg)
73 : #endif
74 :
75 :
76 : /***********************************************************************
77 : *
78 : * Globals
79 : *
80 : ***********************************************************************/
81 :
82 : static NPNetscapeFuncs gNetscapeFuncs; /* Netscape Function table */
83 :
84 :
85 : /***********************************************************************
86 : *
87 : * Wrapper functions : plugin calling Netscape Navigator
88 : *
89 : * These functions let the plugin developer just call the APIs
90 : * as documented and defined in npapi.h, without needing to know
91 : * about the function table and call macros in npupp.h.
92 : *
93 : ***********************************************************************/
94 :
95 : void
96 0 : NPN_Version(int* plugin_major, int* plugin_minor,
97 : int* netscape_major, int* netscape_minor)
98 : {
99 0 : *plugin_major = NP_VERSION_MAJOR;
100 0 : *plugin_minor = NP_VERSION_MINOR;
101 :
102 : /* Major version is in high byte */
103 0 : *netscape_major = gNetscapeFuncs.version >> 8;
104 : /* Minor version is in low byte */
105 0 : *netscape_minor = gNetscapeFuncs.version & 0xFF;
106 0 : }
107 :
108 : NPError
109 0 : NPN_GetValue(NPP instance, NPNVariable variable, void *r_value)
110 : {
111 0 : return CallNPN_GetValueProc(gNetscapeFuncs.getvalue,
112 : instance, variable, r_value);
113 : }
114 :
115 : NPError
116 0 : NPN_SetValue(NPP instance, NPPVariable variable, void *value)
117 : {
118 0 : return CallNPN_SetValueProc(gNetscapeFuncs.setvalue,
119 : instance, variable, value);
120 : }
121 :
122 : NPError
123 0 : NPN_GetURL(NPP instance, const char* url, const char* window)
124 : {
125 0 : return CallNPN_GetURLProc(gNetscapeFuncs.geturl, instance, url, window);
126 : }
127 :
128 : NPError
129 0 : NPN_GetURLNotify(NPP instance, const char* url, const char* window, void* notifyData)
130 : {
131 0 : return CallNPN_GetURLNotifyProc(gNetscapeFuncs.geturlnotify, instance, url, window, notifyData);
132 : }
133 :
134 : NPError
135 0 : NPN_PostURL(NPP instance, const char* url, const char* window,
136 : uint32_t len, const char* buf, NPBool file)
137 : {
138 0 : return CallNPN_PostURLProc(gNetscapeFuncs.posturl, instance,
139 : url, window, len, buf, file);
140 : }
141 :
142 : NPError
143 0 : NPN_PostURLNotify(NPP instance, const char* url, const char* window, uint32_t len,
144 : const char* buf, NPBool file, void* notifyData)
145 : {
146 0 : return CallNPN_PostURLNotifyProc(gNetscapeFuncs.posturlnotify,
147 : instance, url, window, len, buf, file, notifyData);
148 : }
149 :
150 : NPError
151 0 : NPN_RequestRead(NPStream* stream, NPByteRange* rangeList)
152 : {
153 0 : return CallNPN_RequestReadProc(gNetscapeFuncs.requestread,
154 : stream, rangeList);
155 : }
156 :
157 : NPError
158 0 : NPN_NewStream(NPP instance, NPMIMEType type, const char *window,
159 : NPStream** stream_ptr)
160 : {
161 0 : return CallNPN_NewStreamProc(gNetscapeFuncs.newstream, instance,
162 : type, window, stream_ptr);
163 : }
164 :
165 : int32_t
166 0 : NPN_Write(NPP instance, NPStream* stream, int32_t len, void* buffer)
167 : {
168 0 : return CallNPN_WriteProc(gNetscapeFuncs.write, instance,
169 : stream, len, buffer);
170 : }
171 :
172 : NPError
173 0 : NPN_DestroyStream(NPP instance, NPStream* stream, NPError reason)
174 : {
175 0 : return CallNPN_DestroyStreamProc(gNetscapeFuncs.destroystream,
176 : instance, stream, reason);
177 : }
178 :
179 : void
180 0 : NPN_Status(NPP instance, const char* message)
181 : {
182 0 : CallNPN_StatusProc(gNetscapeFuncs.status, instance, message);
183 0 : }
184 :
185 : const char*
186 0 : NPN_UserAgent(NPP instance)
187 : {
188 0 : return CallNPN_UserAgentProc(gNetscapeFuncs.uagent, instance);
189 : }
190 :
191 : void*
192 0 : NPN_MemAlloc(uint32_t size)
193 : {
194 0 : return CallNPN_MemAllocProc(gNetscapeFuncs.memalloc, size);
195 : }
196 :
197 0 : void NPN_MemFree(void* ptr)
198 : {
199 0 : CallNPN_MemFreeProc(gNetscapeFuncs.memfree, ptr);
200 0 : }
201 :
202 0 : uint32_t NPN_MemFlush(uint32_t size)
203 : {
204 0 : return CallNPN_MemFlushProc(gNetscapeFuncs.memflush, size);
205 : }
206 :
207 0 : void NPN_ReloadPlugins(NPBool reloadPages)
208 : {
209 0 : CallNPN_ReloadPluginsProc(gNetscapeFuncs.reloadplugins, reloadPages);
210 0 : }
211 :
212 : #ifdef OJI
213 : JRIEnv* NPN_GetJavaEnv()
214 : {
215 : return CallNPN_GetJavaEnvProc(gNetscapeFuncs.getJavaEnv);
216 : }
217 :
218 : jref NPN_GetJavaPeer(NPP instance)
219 : {
220 : return CallNPN_GetJavaPeerProc(gNetscapeFuncs.getJavaPeer,
221 : instance);
222 : }
223 : #endif
224 :
225 : void
226 0 : NPN_InvalidateRect(NPP instance, NPRect *invalidRect)
227 : {
228 0 : CallNPN_InvalidateRectProc(gNetscapeFuncs.invalidaterect, instance,
229 : invalidRect);
230 0 : }
231 :
232 : void
233 0 : NPN_InvalidateRegion(NPP instance, NPRegion invalidRegion)
234 : {
235 0 : CallNPN_InvalidateRegionProc(gNetscapeFuncs.invalidateregion, instance,
236 : invalidRegion);
237 0 : }
238 :
239 : void
240 0 : NPN_ForceRedraw(NPP instance)
241 : {
242 0 : CallNPN_ForceRedrawProc(gNetscapeFuncs.forceredraw, instance);
243 0 : }
244 :
245 : /***********************************************************************
246 : *
247 : * Wrapper functions : Netscape Navigator -> plugin
248 : *
249 : * These functions let the plugin developer just create the APIs
250 : * as documented and defined in npapi.h, without needing to
251 : * install those functions in the function table or worry about
252 : * setting up globals for 68K plugins.
253 : *
254 : ***********************************************************************/
255 :
256 : NPError
257 0 : Private_New(NPMIMEType pluginType, NPP instance, uint16_t mode,
258 : int16_t argc, char* argn[], char* argv[], NPSavedData* saved)
259 : {
260 : NPError ret;
261 : PLUGINDEBUGSTR("New");
262 0 : ret = NPP_New(pluginType, instance, mode, argc, argn, argv, saved);
263 0 : return ret;
264 : }
265 :
266 : NPError
267 0 : Private_Destroy(NPP instance, NPSavedData** save)
268 : {
269 : PLUGINDEBUGSTR("Destroy");
270 0 : return NPP_Destroy(instance, save);
271 : }
272 :
273 : NPError
274 0 : Private_SetWindow(NPP instance, NPWindow* window)
275 : {
276 : NPError err;
277 : PLUGINDEBUGSTR("SetWindow");
278 0 : err = NPP_SetWindow(instance, window);
279 0 : return err;
280 : }
281 :
282 : NPError
283 0 : Private_NewStream(NPP instance, NPMIMEType type, NPStream* stream,
284 : NPBool seekable, uint16_t* stype)
285 : {
286 : NPError err;
287 : PLUGINDEBUGSTR("NewStream");
288 0 : err = NPP_NewStream(instance, type, stream, seekable, stype);
289 0 : return err;
290 : }
291 :
292 : int32_t
293 0 : Private_WriteReady(NPP instance, NPStream* stream)
294 : {
295 : unsigned int result;
296 : PLUGINDEBUGSTR("WriteReady");
297 0 : result = NPP_WriteReady(instance, stream);
298 0 : return result;
299 : }
300 :
301 : int32_t
302 0 : Private_Write(NPP instance, NPStream* stream, int32_t offset, int32_t len,
303 : void* buffer)
304 : {
305 : unsigned int result;
306 : PLUGINDEBUGSTR("Write");
307 0 : result = NPP_Write(instance, stream, offset, len, buffer);
308 0 : return result;
309 : }
310 :
311 : void
312 0 : Private_StreamAsFile(NPP instance, NPStream* stream, const char* fname)
313 : {
314 : PLUGINDEBUGSTR("StreamAsFile");
315 0 : NPP_StreamAsFile(instance, stream, fname);
316 0 : }
317 :
318 :
319 : NPError
320 0 : Private_DestroyStream(NPP instance, NPStream* stream, NPError reason)
321 : {
322 : NPError err;
323 : PLUGINDEBUGSTR("DestroyStream");
324 0 : err = NPP_DestroyStream(instance, stream, reason);
325 0 : return err;
326 : }
327 :
328 : void
329 0 : Private_URLNotify(NPP instance, const char* url,
330 : NPReason reason, void* notifyData)
331 :
332 : {
333 : PLUGINDEBUGSTR("URLNotify");
334 0 : NPP_URLNotify(instance, url, reason, notifyData);
335 0 : }
336 :
337 :
338 :
339 : void
340 0 : Private_Print(NPP instance, NPPrint* platformPrint)
341 : {
342 : PLUGINDEBUGSTR("Print");
343 0 : NPP_Print(instance, platformPrint);
344 0 : }
345 :
346 : #ifdef OJI
347 : JRIGlobalRef
348 : Private_GetJavaClass(void)
349 : {
350 : jref clazz = NPP_GetJavaClass();
351 : if (clazz) {
352 : JRIEnv* env = NPN_GetJavaEnv();
353 : return JRI_NewGlobalRef(env, clazz);
354 : }
355 : return NULL;
356 : }
357 : #endif
358 :
359 : /***********************************************************************
360 : *
361 : * These functions are located automagically by netscape.
362 : *
363 : ***********************************************************************/
364 :
365 : /*
366 : * NP_GetMIMEDescription
367 : * - Netscape needs to know about this symbol
368 : * - Netscape uses the return value to identify when an object instance
369 : * of this plugin should be created.
370 : */
371 : SAL_DLLPUBLIC_EXPORT char *
372 0 : NP_GetMIMEDescription(void)
373 : {
374 0 : return (char *)NPP_GetMIMEDescription();
375 : }
376 :
377 : /*
378 : * NP_GetValue [optional]
379 : * - Netscape needs to know about this symbol.
380 : * - Interfaces with plugin to get values for predefined variables
381 : * that the navigator needs.
382 : */
383 : SAL_DLLPUBLIC_EXPORT NPError
384 0 : NP_GetValue(void* future, NPPVariable variable, void *value)
385 : {
386 0 : return NPP_GetValue(future, variable, value);
387 : }
388 :
389 : /*
390 : * NP_Initialize
391 : * - Netscape needs to know about this symbol.
392 : * - It calls this function after looking up its symbol before it
393 : * is about to create the first ever object of this kind.
394 : *
395 : * PARAMETERS
396 : * nsTable - The netscape function table. If developers just use these
397 : * wrappers, they dont need to worry about all these function
398 : * tables.
399 : * RETURN
400 : * pluginFuncs
401 : * - This functions needs to fill the plugin function table
402 : * pluginFuncs and return it. Netscape Navigator plugin
403 : * library will use this function table to call the plugin.
404 : *
405 : */
406 : SAL_DLLPUBLIC_EXPORT NPError
407 0 : NP_Initialize(NPNetscapeFuncs* nsTable, NPPluginFuncs* pluginFuncs)
408 : {
409 0 : NPError err = NPERR_NO_ERROR;
410 :
411 : PLUGINDEBUGSTR("NP_Initialize");
412 :
413 : /* validate input parameters */
414 :
415 0 : if ((nsTable == NULL) || (pluginFuncs == NULL))
416 0 : err = NPERR_INVALID_FUNCTABLE_ERROR;
417 :
418 : /*
419 : * Check the major version passed in Netscape's function table.
420 : * We won't load if the major version is newer than what we expect.
421 : * Also check that the function tables passed in are big enough for
422 : * all the functions we need (they could be bigger, if Netscape added
423 : * new APIs, but that's OK with us -- we'll just ignore them).
424 : *
425 : */
426 :
427 0 : if (err == NPERR_NO_ERROR) {
428 0 : if ((nsTable->version >> 8) > NP_VERSION_MAJOR)
429 0 : err = NPERR_INCOMPATIBLE_VERSION_ERROR;
430 0 : if (nsTable->size < sizeof(NPNetscapeFuncs))
431 0 : err = NPERR_INVALID_FUNCTABLE_ERROR;
432 0 : if (pluginFuncs->size < sizeof(NPPluginFuncs))
433 0 : err = NPERR_INVALID_FUNCTABLE_ERROR;
434 : }
435 :
436 :
437 0 : if (err == NPERR_NO_ERROR) {
438 : /*
439 : * Copy all the fields of Netscape function table into our
440 : * copy so we can call back into Netscape later. Note that
441 : * we need to copy the fields one by one, rather than assigning
442 : * the whole structure, because the Netscape function table
443 : * could actually be bigger than what we expect.
444 : */
445 0 : gNetscapeFuncs.version = nsTable->version;
446 0 : gNetscapeFuncs.size = nsTable->size;
447 0 : gNetscapeFuncs.posturl = nsTable->posturl;
448 0 : gNetscapeFuncs.geturl = nsTable->geturl;
449 0 : gNetscapeFuncs.geturlnotify = nsTable->geturlnotify;
450 0 : gNetscapeFuncs.requestread = nsTable->requestread;
451 0 : gNetscapeFuncs.newstream = nsTable->newstream;
452 0 : gNetscapeFuncs.write = nsTable->write;
453 0 : gNetscapeFuncs.destroystream = nsTable->destroystream;
454 0 : gNetscapeFuncs.status = nsTable->status;
455 0 : gNetscapeFuncs.uagent = nsTable->uagent;
456 0 : gNetscapeFuncs.memalloc = nsTable->memalloc;
457 0 : gNetscapeFuncs.memfree = nsTable->memfree;
458 0 : gNetscapeFuncs.memflush = nsTable->memflush;
459 0 : gNetscapeFuncs.reloadplugins = nsTable->reloadplugins;
460 : #ifdef OJI
461 : gNetscapeFuncs.getJavaEnv = nsTable->getJavaEnv;
462 : gNetscapeFuncs.getJavaPeer = nsTable->getJavaPeer;
463 : #endif
464 0 : gNetscapeFuncs.getvalue = nsTable->getvalue;
465 :
466 : /*
467 : * Set up the plugin function table that Netscape will use to
468 : * call us. Netscape needs to know about our version and size
469 : * and have a UniversalProcPointer for every function we
470 : * implement.
471 : */
472 0 : pluginFuncs->version = (NP_VERSION_MAJOR << 8) + NP_VERSION_MINOR;
473 0 : pluginFuncs->size = sizeof(NPPluginFuncs);
474 0 : pluginFuncs->newp = NewNPP_NewProc(Private_New);
475 0 : pluginFuncs->destroy = NewNPP_DestroyProc(Private_Destroy);
476 0 : pluginFuncs->setwindow = NewNPP_SetWindowProc(Private_SetWindow);
477 0 : pluginFuncs->newstream = NewNPP_NewStreamProc(Private_NewStream);
478 0 : pluginFuncs->destroystream = NewNPP_DestroyStreamProc(Private_DestroyStream);
479 0 : pluginFuncs->asfile = NewNPP_StreamAsFileProc(Private_StreamAsFile);
480 0 : pluginFuncs->writeready = NewNPP_WriteReadyProc(Private_WriteReady);
481 0 : pluginFuncs->write = NewNPP_WriteProc(Private_Write);
482 0 : pluginFuncs->print = NewNPP_PrintProc(Private_Print);
483 0 : pluginFuncs->urlnotify = NewNPP_URLNotifyProc(Private_URLNotify);
484 0 : pluginFuncs->event = NULL;
485 : #ifdef OJI
486 : pluginFuncs->javaClass = Private_GetJavaClass();
487 : #endif
488 :
489 0 : err = NPP_Initialize();
490 : }
491 :
492 0 : return err;
493 : }
494 :
495 : /*
496 : * NP_Shutdown [optional]
497 : * - Netscape needs to know about this symbol.
498 : * - It calls this function after looking up its symbol after
499 : * the last object of this kind has been destroyed.
500 : *
501 : */
502 : SAL_DLLPUBLIC_EXPORT void
503 0 : NP_Shutdown(void)
504 : {
505 : PLUGINDEBUGSTR("NP_Shutdown");
506 0 : NPP_Shutdown();
507 0 : }
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