VBoxClipboard.cpp@ 96663

Last change on this file since 96663 was 96407, checked in by vboxsync, 2 years ago
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1	/* $Id: VBoxClipboard.cpp 96407 2022-08-22 17:43:14Z vboxsync $ */
2	/** @file
3	* VBoxClipboard; Haiku Guest Additions, implementation.
4	*/
5
6	/*
7	* Copyright (C) 2012-2022 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	/*
29	* This code is based on:
30	*
31	* VirtualBox Guest Additions for Haiku.
32	* Copyright (c) 2011 Mike Smith <[email protected]>
33	* Fran�ois Revol <[email protected]>
34	*
35	* Permission is hereby granted, free of charge, to any person
36	* obtaining a copy of this software and associated documentation
37	* files (the "Software"), to deal in the Software without
38	* restriction, including without limitation the rights to use,
39	* copy, modify, merge, publish, distribute, sublicense, and/or sell
40	* copies of the Software, and to permit persons to whom the
41	* Software is furnished to do so, subject to the following
42	* conditions:
43	*
44	* The above copyright notice and this permission notice shall be
45	* included in all copies or substantial portions of the Software.
46	*
47	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
48	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
49	* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
50	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
51	* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
52	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
53	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
54	* OTHER DEALINGS IN THE SOFTWARE.
55	*/
56
57	#include <stdio.h>
58	#include <stdlib.h>
59	#include <new>
60	#include <Bitmap.h>
61	#include <BitmapStream.h>
62	#include <Clipboard.h>
63	#include <DataIO.h>
64	#include <Message.h>
65	#include <TranslationUtils.h>
66	#include <TranslatorFormats.h>
67	#include <TranslatorRoster.h>
68	#include <String.h>
69
70	#include "VBoxGuestApplication.h"
71	#include "VBoxClipboard.h"
72	#include <VBoxGuestInternal.h>
73
74	#include <iprt/mem.h>
75	#include <VBox/GuestHost/clipboard-helper.h>
76	#include <VBox/HostServices/VBoxClipboardSvc.h>
77	#include <VBox/log.h>
78
79	/** @todo r=ramshankar: this hack should go eventually. */
80	#ifdef DEBUG_ramshankar
81	# undef Log
82	# define Log(x) printf x
83	# undef LogRel
84	# define LogRel(x) printf x
85	# undef LogRelFlowFunc
86	# define LogRelFlowFunc(x) printf x
87	#endif
88
89
90	VBoxShClService::VBoxShClService()
91	: BHandler("VBoxShClService"),
92	fClientId(-1),
93	fServiceThreadID(-1),
94	fExiting(false)
95	{
96	}
97
98
99	VBoxShClService::~VBoxShClService()
100	{
101	}
102
103
104	status_t VBoxShClService::Connect()
105	{
106	status_t err;
107	LogFlowFunc(("Connect\n"));
108
109	int rc = VbglR3ClipboardConnect(&fClientId);
110	if (RT_SUCCESS(rc))
111	{
112	err = fServiceThreadID = spawn_thread(_ServiceThreadNub, "VBoxShClService", B_NORMAL_PRIORITY, this);
113	if (err >= B_OK)
114	{
115	resume_thread(fServiceThreadID);
116	err = be_clipboard->StartWatching(BMessenger(this));
117	LogFlow(("be_clipboard->StartWatching: %ld\n", err));
118	if (err == B_OK)
119	return B_OK;
120	else
121	LogRel(("VBoxShClService: Error watching the system clipboard: %ld\n", err));
122	}
123	else
124	LogRel(("VBoxShClService: Error starting service thread: %ld\n", err));
125
126	//rc = RTErrConvertFromErrno(err);
127	VbglR3ClipboardDisconnect(fClientId);
128	}
129	else
130	LogRel(("VBoxShClService: Error starting service thread: %d\n", rc));
131	return B_ERROR;
132	}
133
134
135	status_t VBoxShClService::Disconnect()
136	{
137	status_t status;
138
139	be_clipboard->StopWatching(BMessenger(this));
140
141	fExiting = true;
142
143	VbglR3ClipboardDisconnect(fClientId);
144
145	wait_for_thread(fServiceThreadID, &status);
146	return B_OK;
147	}
148
149
150	void VBoxShClService::MessageReceived(BMessage *message)
151	{
152	uint32_t formats = 0;
153	message->PrintToStream();
154	switch (message->what)
155	{
156	case VBOX_GUEST_CLIPBOARD_HOST_MSG_FORMATS:
157	{
158	int rc;
159	uint32_t cb;
160	void *pv;
161	bool commit = false;
162
163	if (message->FindInt32("Formats", (int32 *)&formats) != B_OK)
164	break;
165
166	if (!formats)
167	break;
168
169	if (!be_clipboard->Lock())
170	break;
171
172	be_clipboard->Clear();
173	BMessage *clip = be_clipboard->Data();
174	if (!clip)
175	{
176	be_clipboard->Unlock();
177	break;
178	}
179
180	if (formats & VBOX_SHCL_FMT_UNICODETEXT)
181	{
182	pv = _VBoxReadHostClipboard(VBOX_SHCL_FMT_UNICODETEXT, &cb);
183	if (pv)
184	{
185	char *text;
186	rc = RTUtf16ToUtf8((PCRTUTF16)pv, &text);
187	if (RT_SUCCESS(rc))
188	{
189	BString str(text);
190	/** @todo user vboxClipboardUtf16WinToLin() */
191	// convert Windows CRLF to LF
192	str.ReplaceAll("\r\n", "\n");
193	// don't include the \0
194	clip->AddData("text/plain", B_MIME_TYPE, str.String(), str.Length());
195	RTStrFree(text);
196	commit = true;
197	}
198	free(pv);
199	}
200	}
201
202	if (formats & VBOX_SHCL_FMT_BITMAP)
203	{
204	pv = _VBoxReadHostClipboard(VBOX_SHCL_FMT_BITMAP, &cb);
205	if (pv)
206	{
207	void *pBmp = NULL;
208	size_t cbBmp = 0;
209	rc = ShClDibToBmp(pv, cb, &pBmp, &cbBmp);
210	if (RT_SUCCESS(rc))
211	{
212	BMemoryIO mio(pBmp, cbBmp);
213	BBitmap *bitmap = BTranslationUtils::GetBitmap(&mio);
214	if (bitmap)
215	{
216	BMessage bitmapArchive;
217
218	/** @todo r=ramshankar: split this into functions with error checking as
219	* neccessary. */
220	if ( bitmap->IsValid()
221	&& bitmap->Archive(&bitmapArchive) == B_OK
222	&& clip->AddMessage("image/bitmap", &bitmapArchive) == B_OK)
223	{
224	commit = true;
225	}
226	delete bitmap;
227	}
228	RTMemFree(pBmp);
229	}
230	free(pv);
231	}
232	}
233
234	/*
235	* Make sure we don't bounce this data back to the host, it's impolite. It can also
236	* be used as a hint to applications probably.
237	*/
238	clip->AddBool("FromVirtualBoxHost", true);
239	if (commit)
240	be_clipboard->Commit();
241	be_clipboard->Unlock();
242	break;
243	}
244
245	case VBOX_GUEST_CLIPBOARD_HOST_MSG_READ_DATA:
246	{
247	int rc;
248
249	if (message->FindInt32("Formats", (int32 *)&formats) != B_OK)
250	break;
251
252	if (!formats)
253	break;
254	if (!be_clipboard->Lock())
255	break;
256
257	BMessage *clip = be_clipboard->Data();
258	if (!clip)
259	{
260	be_clipboard->Unlock();
261	break;
262	}
263	clip->PrintToStream();
264
265	if (formats & VBOX_SHCL_FMT_UNICODETEXT)
266	{
267	const char *text;
268	int32 textLen;
269	if (clip->FindData("text/plain", B_MIME_TYPE, (const void **)&text, &textLen) == B_OK)
270	{
271	// usually doesn't include the \0 so be safe
272	BString str(text, textLen);
273	// convert from LF to Windows CRLF
274	str.ReplaceAll("\n", "\r\n");
275	PRTUTF16 pwsz;
276	rc = RTStrToUtf16(str.String(), &pwsz);
277	if (RT_SUCCESS(rc))
278	{
279	uint32_t cb = (RTUtf16Len(pwsz) + 1) * sizeof(RTUTF16);
280
281	rc = VbglR3ClipboardWriteData(fClientId, VBOX_SHCL_FMT_UNICODETEXT, pwsz, cb);
282	//printf("VbglR3ClipboardWriteData: %d\n", rc);
283	RTUtf16Free(pwsz);
284	}
285	}
286	}
287	else if (formats & VBOX_SHCL_FMT_BITMAP)
288	{
289	BMessage archivedBitmap;
290	if (clip->FindMessage("image/bitmap", &archivedBitmap) == B_OK \|\|
291	clip->FindMessage("image/x-be-bitmap", &archivedBitmap) == B_OK)
292	{
293	BBitmap *bitmap = new(std::nothrow) BBitmap(&archivedBitmap);
294	if (bitmap)
295	{
296	// Don't delete bitmap, BBitmapStream will.
297	BBitmapStream stream(bitmap);
298	BTranslatorRoster *roster = BTranslatorRoster::Default();
299	if (roster && bitmap->IsValid())
300	{
301	BMallocIO bmpStream;
302	if (roster->Translate(&stream, NULL, NULL, &bmpStream, B_BMP_FORMAT) == B_OK)
303	{
304	const void *pDib;
305	size_t cbDibSize;
306	/* Strip out the BM header */
307	rc = ShClBmpGetDib(bmpStream.Buffer(), bmpStream.BufferLength(), &pDib, &cbDibSize);
308	if (RT_SUCCESS(rc))
309	{
310	rc = VbglR3ClipboardWriteData(fClientId, VBOX_SHCL_FMT_BITMAP, (void *)pDib,
311	cbDibSize);
312	}
313	}
314	}
315	}
316	}
317	}
318
319	be_clipboard->Unlock();
320	break;
321	}
322
323	case B_CLIPBOARD_CHANGED:
324	{
325	printf("B_CLIPBOARD_CHANGED\n");
326	const void *data;
327	int32 dataLen;
328	if (!be_clipboard->Lock())
329	break;
330
331	BMessage *clip = be_clipboard->Data();
332	if (!clip)
333	{
334	be_clipboard->Unlock();
335	break;
336	}
337
338	bool fromVBox;
339	if (clip->FindBool("FromVirtualBoxHost", &fromVBox) == B_OK && fromVBox)
340	{
341	// It already comes from the host, discard.
342	be_clipboard->Unlock();
343	break;
344	}
345
346	if (clip->FindData("text/plain", B_MIME_TYPE, &data, &dataLen) == B_OK)
347	formats \|= VBOX_SHCL_FMT_UNICODETEXT;
348
349	if ( clip->HasMessage("image/bitmap")
350	\|\| clip->HasMessage("image/x-be-bitmap"))
351	{
352	formats \|= VBOX_SHCL_FMT_BITMAP;
353	}
354
355	be_clipboard->Unlock();
356
357	VbglR3ClipboardReportFormats(fClientId, formats);
358	break;
359	}
360
361	case B_QUIT_REQUESTED:
362	fExiting = true;
363	break;
364
365	default:
366	BHandler::MessageReceived(message);
367	}
368	}
369
370
371	status_t VBoxShClService::_ServiceThreadNub(void *_this)
372	{
373	VBoxShClService service = (VBoxShClService )_this;
374	return service->_ServiceThread();
375	}
376
377
378	status_t VBoxShClService::_ServiceThread()
379	{
380	printf("VBoxShClService::%s()\n", __FUNCTION__);
381
382	/* The thread waits for incoming messages from the host. */
383	for (;;)
384	{
385	uint32_t u32Msg;
386	uint32_t u32Formats;
387	int rc = VbglR3ClipboardGetHostMsgOld(fClientId, &u32Msg, &u32Formats);
388	if (RT_SUCCESS(rc))
389	{
390	switch (u32Msg)
391	{
392	case VBOX_SHCL_HOST_MSG_FORMATS_REPORT:
393	{
394	/*
395	* The host has announced available clipboard formats. Forward
396	* the information to the handler.
397	*/
398	LogRelFlowFunc(("VBOX_SHCL_HOST_MSG_REPORT_FORMATS u32Formats=%x\n", u32Formats));
399	BMessage msg(VBOX_GUEST_CLIPBOARD_HOST_MSG_FORMATS);
400	msg.AddInt32("Formats", (uint32)u32Formats);
401	Looper()->PostMessage(&msg, this);
402	break;
403	}
404
405	case VBOX_SHCL_HOST_MSG_READ_DATA:
406	{
407	/* The host needs data in the specified format. */
408	LogRelFlowFunc(("VBOX_SHCL_HOST_MSG_READ_DATA u32Formats=%x\n", u32Formats));
409	BMessage msg(VBOX_GUEST_CLIPBOARD_HOST_MSG_READ_DATA);
410	msg.AddInt32("Formats", (uint32)u32Formats);
411	Looper()->PostMessage(&msg, this);
412	break;
413	}
414
415	case VBOX_SHCL_HOST_MSG_QUIT:
416	{
417	/* The host is terminating. */
418	LogRelFlowFunc(("VBOX_SHCL_HOST_MSG_QUIT\n"));
419	fExiting = true;
420	return VERR_INTERRUPTED;
421	}
422
423	default:
424	Log(("VBoxShClService::%s: Unsupported message from host! Message = %u\n", __FUNCTION__, u32Msg));
425	}
426	}
427	else
428	fExiting = true;
429
430	LogRelFlow(("processed host event rc = %d\n", rc));
431
432	if (fExiting)
433	break;
434	}
435	return 0;
436	}
437
438
439	void* VBoxShClService::_VBoxReadHostClipboard(uint32_t format, uint32_t *pcb)
440	{
441	uint32_t cb = 1024;
442	void *pv;
443	int rc;
444
445	pv = malloc(cb);
446	if (pv == NULL)
447	return NULL;
448
449	rc = VbglR3ClipboardReadData(fClientId, format, pv, cb, pcb);
450	if (RT_SUCCESS(rc) && (rc != VINF_BUFFER_OVERFLOW))
451	return pv;
452	if (rc == VINF_BUFFER_OVERFLOW)
453	{
454	free(pv);
455	cb = *pcb;
456	pv = malloc(cb);
457	if (pv == NULL)
458	return NULL;
459
460	rc = VbglR3ClipboardReadData(fClientId, format, pv, cb, pcb);
461	if (RT_SUCCESS(rc) && (rc != VINF_BUFFER_OVERFLOW))
462	return pv;
463
464	free(pv);
465	}
466	return NULL;
467	}
468

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source: vbox/trunk/src/VBox/Additions/haiku/VBoxTray/VBoxClipboard.cpp@ 96663

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