VBoxClipboard.cpp@ 78403

Last change on this file since 78403 was 78346, checked in by vboxsync, 6 years ago
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1	/* $Id: VBoxClipboard.cpp 78346 2019-04-29 11:07:26Z vboxsync $ */
2	/** @file
3	* VBoxClipboard; Haiku Guest Additions, implementation.
4	*/
5
6	/*
7	* Copyright (C) 2012-2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*
19	* This code is based on:
20	*
21	* VirtualBox Guest Additions for Haiku.
22	* Copyright (c) 2011 Mike Smith <[email protected]>
23	* François Revol <[email protected]>
24	*
25	* Permission is hereby granted, free of charge, to any person
26	* obtaining a copy of this software and associated documentation
27	* files (the "Software"), to deal in the Software without
28	* restriction, including without limitation the rights to use,
29	* copy, modify, merge, publish, distribute, sublicense, and/or sell
30	* copies of the Software, and to permit persons to whom the
31	* Software is furnished to do so, subject to the following
32	* conditions:
33	*
34	* The above copyright notice and this permission notice shall be
35	* included in all copies or substantial portions of the Software.
36	*
37	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
38	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
39	* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
40	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
41	* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
42	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
43	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
44	* OTHER DEALINGS IN THE SOFTWARE.
45	*/
46
47	#include <stdio.h>
48	#include <stdlib.h>
49	#include <new>
50	#include <Bitmap.h>
51	#include <BitmapStream.h>
52	#include <Clipboard.h>
53	#include <DataIO.h>
54	#include <Message.h>
55	#include <TranslationUtils.h>
56	#include <TranslatorFormats.h>
57	#include <TranslatorRoster.h>
58	#include <String.h>
59
60	#include "VBoxGuestApplication.h"
61	#include "VBoxClipboard.h"
62	#include <VBoxGuestInternal.h>
63
64	#include <iprt/mem.h>
65	#include <VBox/GuestHost/clipboard-helper.h>
66	#include <VBox/HostServices/VBoxClipboardSvc.h>
67	#include <VBox/log.h>
68
69	/** @todo r=ramshankar: this hack should go eventually. */
70	#ifdef DEBUG_ramshankar
71	# undef Log
72	# define Log(x) printf x
73	# undef LogRel
74	# define LogRel(x) printf x
75	# undef LogRelFlowFunc
76	# define LogRelFlowFunc(x) printf x
77	#endif
78
79
80	VBoxClipboardService::VBoxClipboardService()
81	: BHandler("VBoxClipboardService"),
82	fClientId(-1),
83	fServiceThreadID(-1),
84	fExiting(false)
85	{
86	}
87
88
89	VBoxClipboardService::~VBoxClipboardService()
90	{
91	}
92
93
94	status_t VBoxClipboardService::Connect()
95	{
96	status_t err;
97	LogFlowFunc(("Connect\n"));
98
99	int rc = VbglR3ClipboardConnect(&fClientId);
100	if (RT_SUCCESS(rc))
101	{
102	err = fServiceThreadID = spawn_thread(_ServiceThreadNub, "VBoxClipboardService", B_NORMAL_PRIORITY, this);
103	if (err >= B_OK)
104	{
105	resume_thread(fServiceThreadID);
106	err = be_clipboard->StartWatching(BMessenger(this));
107	LogFlow(("be_clipboard->StartWatching: %ld\n", err));
108	if (err == B_OK)
109	return B_OK;
110	else
111	LogRel(("VBoxClipboardService: Error watching the system clipboard: %ld\n", err));
112	}
113	else
114	LogRel(("VBoxClipboardService: Error starting service thread: %ld\n", err));
115
116	//rc = RTErrConvertFromErrno(err);
117	VbglR3ClipboardDisconnect(fClientId);
118	}
119	else
120	LogRel(("VBoxClipboardService: Error starting service thread: %d\n", rc));
121	return B_ERROR;
122	}
123
124
125	status_t VBoxClipboardService::Disconnect()
126	{
127	status_t status;
128
129	be_clipboard->StopWatching(BMessenger(this));
130
131	fExiting = true;
132
133	VbglR3ClipboardDisconnect(fClientId);
134
135	wait_for_thread(fServiceThreadID, &status);
136	return B_OK;
137	}
138
139
140	void VBoxClipboardService::MessageReceived(BMessage *message)
141	{
142	uint32_t formats = 0;
143	message->PrintToStream();
144	switch (message->what)
145	{
146	case VBOX_GUEST_CLIPBOARD_HOST_MSG_FORMATS:
147	{
148	int rc;
149	uint32_t cb;
150	void *pv;
151	bool commit = false;
152
153	if (message->FindInt32("Formats", (int32 *)&formats) != B_OK)
154	break;
155
156	if (!formats)
157	break;
158
159	if (!be_clipboard->Lock())
160	break;
161
162	be_clipboard->Clear();
163	BMessage *clip = be_clipboard->Data();
164	if (!clip)
165	{
166	be_clipboard->Unlock();
167	break;
168	}
169
170	if (formats & VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT)
171	{
172	pv = _VBoxReadHostClipboard(VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT, &cb);
173	if (pv)
174	{
175	char *text;
176	rc = RTUtf16ToUtf8((PCRTUTF16)pv, &text);
177	if (RT_SUCCESS(rc))
178	{
179	BString str(text);
180	/** @todo user vboxClipboardUtf16WinToLin() */
181	// convert Windows CRLF to LF
182	str.ReplaceAll("\r\n", "\n");
183	// don't include the \0
184	clip->AddData("text/plain", B_MIME_TYPE, str.String(), str.Length());
185	RTStrFree(text);
186	commit = true;
187	}
188	free(pv);
189	}
190	}
191
192	if (formats & VBOX_SHARED_CLIPBOARD_FMT_BITMAP)
193	{
194	pv = _VBoxReadHostClipboard(VBOX_SHARED_CLIPBOARD_FMT_BITMAP, &cb);
195	if (pv)
196	{
197	void *pBmp = NULL;
198	size_t cbBmp = 0;
199	rc = vboxClipboardDibToBmp(pv, cb, &pBmp, &cbBmp);
200	if (RT_SUCCESS(rc))
201	{
202	BMemoryIO mio(pBmp, cbBmp);
203	BBitmap *bitmap = BTranslationUtils::GetBitmap(&mio);
204	if (bitmap)
205	{
206	BMessage bitmapArchive;
207
208	/** @todo r=ramshankar: split this into functions with error checking as
209	* neccessary. */
210	if ( bitmap->IsValid()
211	&& bitmap->Archive(&bitmapArchive) == B_OK
212	&& clip->AddMessage("image/bitmap", &bitmapArchive) == B_OK)
213	{
214	commit = true;
215	}
216	delete bitmap;
217	}
218	RTMemFree(pBmp);
219	}
220	free(pv);
221	}
222	}
223
224	/*
225	* Make sure we don't bounce this data back to the host, it's impolite. It can also
226	* be used as a hint to applications probably.
227	*/
228	clip->AddBool("FromVirtualBoxHost", true);
229	if (commit)
230	be_clipboard->Commit();
231	be_clipboard->Unlock();
232	break;
233	}
234
235	case VBOX_GUEST_CLIPBOARD_HOST_MSG_READ_DATA:
236	{
237	int rc;
238
239	if (message->FindInt32("Formats", (int32 *)&formats) != B_OK)
240	break;
241
242	if (!formats)
243	break;
244	if (!be_clipboard->Lock())
245	break;
246
247	BMessage *clip = be_clipboard->Data();
248	if (!clip)
249	{
250	be_clipboard->Unlock();
251	break;
252	}
253	clip->PrintToStream();
254
255	if (formats & VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT)
256	{
257	const char *text;
258	int32 textLen;
259	if (clip->FindData("text/plain", B_MIME_TYPE, (const void **)&text, &textLen) == B_OK)
260	{
261	// usually doesn't include the \0 so be safe
262	BString str(text, textLen);
263	// convert from LF to Windows CRLF
264	str.ReplaceAll("\n", "\r\n");
265	PRTUTF16 pwsz;
266	rc = RTStrToUtf16(str.String(), &pwsz);
267	if (RT_SUCCESS(rc))
268	{
269	uint32_t cb = (RTUtf16Len(pwsz) + 1) * sizeof(RTUTF16);
270
271	rc = VbglR3ClipboardWriteData(fClientId, VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT, pwsz, cb);
272	//printf("VbglR3ClipboardWriteData: %d\n", rc);
273	RTUtf16Free(pwsz);
274	}
275	}
276	}
277	else if (formats & VBOX_SHARED_CLIPBOARD_FMT_BITMAP)
278	{
279	BMessage archivedBitmap;
280	if (clip->FindMessage("image/bitmap", &archivedBitmap) == B_OK \|\|
281	clip->FindMessage("image/x-be-bitmap", &archivedBitmap) == B_OK)
282	{
283	BBitmap *bitmap = new(std::nothrow) BBitmap(&archivedBitmap);
284	if (bitmap)
285	{
286	// Don't delete bitmap, BBitmapStream will.
287	BBitmapStream stream(bitmap);
288	BTranslatorRoster *roster = BTranslatorRoster::Default();
289	if (roster && bitmap->IsValid())
290	{
291	BMallocIO bmpStream;
292	if (roster->Translate(&stream, NULL, NULL, &bmpStream, B_BMP_FORMAT) == B_OK)
293	{
294	const void *pDib;
295	size_t cbDibSize;
296	/* Strip out the BM header */
297	rc = vboxClipboardBmpGetDib(bmpStream.Buffer(), bmpStream.BufferLength(), &pDib, &cbDibSize);
298	if (RT_SUCCESS(rc))
299	{
300	rc = VbglR3ClipboardWriteData(fClientId, VBOX_SHARED_CLIPBOARD_FMT_BITMAP, (void *)pDib,
301	cbDibSize);
302	}
303	}
304	}
305	}
306	}
307	}
308
309	be_clipboard->Unlock();
310	break;
311	}
312
313	case B_CLIPBOARD_CHANGED:
314	{
315	printf("B_CLIPBOARD_CHANGED\n");
316	const void *data;
317	int32 dataLen;
318	if (!be_clipboard->Lock())
319	break;
320
321	BMessage *clip = be_clipboard->Data();
322	if (!clip)
323	{
324	be_clipboard->Unlock();
325	break;
326	}
327
328	bool fromVBox;
329	if (clip->FindBool("FromVirtualBoxHost", &fromVBox) == B_OK && fromVBox)
330	{
331	// It already comes from the host, discard.
332	be_clipboard->Unlock();
333	break;
334	}
335
336	if (clip->FindData("text/plain", B_MIME_TYPE, &data, &dataLen) == B_OK)
337	formats \|= VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT;
338
339	if ( clip->HasMessage("image/bitmap")
340	\|\| clip->HasMessage("image/x-be-bitmap"))
341	{
342	formats \|= VBOX_SHARED_CLIPBOARD_FMT_BITMAP;
343	}
344
345	be_clipboard->Unlock();
346
347	VbglR3ClipboardReportFormats(fClientId, formats);
348	break;
349	}
350
351	case B_QUIT_REQUESTED:
352	fExiting = true;
353	break;
354
355	default:
356	BHandler::MessageReceived(message);
357	}
358	}
359
360
361	status_t VBoxClipboardService::_ServiceThreadNub(void *_this)
362	{
363	VBoxClipboardService service = (VBoxClipboardService )_this;
364	return service->_ServiceThread();
365	}
366
367
368	status_t VBoxClipboardService::_ServiceThread()
369	{
370	printf("VBoxClipboardService::%s()\n", __FUNCTION__);
371
372	/* The thread waits for incoming messages from the host. */
373	for (;;)
374	{
375	uint32_t u32Msg;
376	uint32_t u32Formats;
377	int rc = VbglR3ClipboardGetHostMsg(fClientId, &u32Msg, &u32Formats);
378	if (RT_SUCCESS(rc))
379	{
380	switch (u32Msg)
381	{
382	case VBOX_SHARED_CLIPBOARD_HOST_MSG_REPORT_FORMATS:
383	{
384	/*
385	* The host has announced available clipboard formats. Forward
386	* the information to the handler.
387	*/
388	LogRelFlowFunc(("VBOX_SHARED_CLIPBOARD_HOST_MSG_REPORT_FORMATS u32Formats=%x\n", u32Formats));
389	BMessage msg(VBOX_GUEST_CLIPBOARD_HOST_MSG_FORMATS);
390	msg.AddInt32("Formats", (uint32)u32Formats);
391	Looper()->PostMessage(&msg, this);
392	break;
393	}
394
395	case VBOX_SHARED_CLIPBOARD_HOST_MSG_READ_DATA:
396	{
397	/* The host needs data in the specified format. */
398	LogRelFlowFunc(("VBOX_SHARED_CLIPBOARD_HOST_MSG_READ_DATA u32Formats=%x\n", u32Formats));
399	BMessage msg(VBOX_GUEST_CLIPBOARD_HOST_MSG_READ_DATA);
400	msg.AddInt32("Formats", (uint32)u32Formats);
401	Looper()->PostMessage(&msg, this);
402	break;
403	}
404
405	case VBOX_SHARED_CLIPBOARD_HOST_MSG_QUIT:
406	{
407	/* The host is terminating. */
408	LogRelFlowFunc(("VBOX_SHARED_CLIPBOARD_HOST_MSG_QUIT\n"));
409	fExiting = true;
410	return VERR_INTERRUPTED;
411	}
412
413	default:
414	Log(("VBoxClipboardService::%s: Unsupported message from host! Message = %u\n", __FUNCTION__, u32Msg));
415	}
416	}
417	else
418	fExiting = true;
419
420	LogRelFlow(("processed host event rc = %d\n", rc));
421
422	if (fExiting)
423	break;
424	}
425	return 0;
426	}
427
428
429	void* VBoxClipboardService::_VBoxReadHostClipboard(uint32_t format, uint32_t *pcb)
430	{
431	uint32_t cb = 1024;
432	void *pv;
433	int rc;
434
435	pv = malloc(cb);
436	if (pv == NULL)
437	return NULL;
438
439	rc = VbglR3ClipboardReadData(fClientId, format, pv, cb, pcb);
440	if (RT_SUCCESS(rc) && (rc != VINF_BUFFER_OVERFLOW))
441	return pv;
442	if (rc == VINF_BUFFER_OVERFLOW)
443	{
444	free(pv);
445	cb = *pcb;
446	pv = malloc(cb);
447	if (pv == NULL)
448	return NULL;
449
450	rc = VbglR3ClipboardReadData(fClientId, format, pv, cb, pcb);
451	if (RT_SUCCESS(rc) && (rc != VINF_BUFFER_OVERFLOW))
452	return pv;
453
454	free(pv);
455	}
456	return NULL;
457	}
458

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source: vbox/trunk/src/VBox/Additions/haiku/VBoxTray/VBoxClipboard.cpp@ 78403

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