darwin-pasteboard.cpp@ 82968

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1	/* $Id: darwin-pasteboard.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2	/** @file
3	* Shared Clipboard Service - Mac OS X host implementation.
4	*/
5
6	/*
7	* Includes contributions from François Revol
8	*
9	* Copyright (C) 2008-2020 Oracle Corporation
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	*/
19
20
21	/*********************************************************************************************************************************
22	* Header Files *
23	*********************************************************************************************************************************/
24	#define LOG_GROUP LOG_GROUP_SHARED_CLIPBOARD
25	#include <Carbon/Carbon.h>
26
27	#include <iprt/assert.h>
28	#include <iprt/mem.h>
29	#include <iprt/errcore.h>
30	#include <iprt/utf16.h>
31
32	#include "VBox/log.h"
33	#include "VBox/HostServices/VBoxClipboardSvc.h"
34	#include "VBox/GuestHost/SharedClipboard.h"
35	#include "VBox/GuestHost/clipboard-helper.h"
36
37
38	/*********************************************************************************************************************************
39	* Defined Constants And Macros *
40	*********************************************************************************************************************************/
41	/* For debugging */
42	//#define SHOW_CLIPBOARD_CONTENT
43
44
45	/**
46	* Initialize the global pasteboard and return a reference to it.
47	*
48	* @param pPasteboardRef Reference to the global pasteboard.
49	*
50	* @returns IPRT status code.
51	*/
52	int initPasteboard(PasteboardRef *pPasteboardRef)
53	{
54	int rc = VINF_SUCCESS;
55
56	if (PasteboardCreate(kPasteboardClipboard, pPasteboardRef))
57	rc = VERR_NOT_SUPPORTED;
58
59	return rc;
60	}
61
62	/**
63	* Release the reference to the global pasteboard.
64	*
65	* @param pPasteboardRef Reference to the global pasteboard.
66	*/
67	void destroyPasteboard(PasteboardRef *pPasteboardRef)
68	{
69	CFRelease(*pPasteboardRef);
70	*pPasteboardRef = NULL;
71	}
72
73	/**
74	* Inspect the global pasteboard for new content. Check if there is some type
75	* that is supported by vbox and return it.
76	*
77	* @param pPasteboard Reference to the global pasteboard.
78	* @param pfFormats Pointer for the bit combination of the
79	* supported types.
80	* @param pfChanged True if something has changed after the
81	* last call.
82	*
83	* @returns IPRT status code. (Always VINF_SUCCESS atm.)
84	*/
85	int queryNewPasteboardFormats(PasteboardRef pPasteboard, uint32_t pfFormats, bool pfChanged)
86	{
87	Log(("queryNewPasteboardFormats\n"));
88
89	OSStatus err = noErr;
90	*pfChanged = true;
91
92	PasteboardSyncFlags syncFlags;
93	/* Make sure all is in sync */
94	syncFlags = PasteboardSynchronize(pPasteboard);
95	/* If nothing changed return */
96	if (!(syncFlags & kPasteboardModified))
97	{
98	*pfChanged = false;
99	return VINF_SUCCESS;
100	}
101
102	/* Are some items in the pasteboard? */
103	ItemCount itemCount;
104	err = PasteboardGetItemCount(pPasteboard, &itemCount);
105	if (itemCount < 1)
106	return VINF_SUCCESS;
107
108	/* The id of the first element in the pasteboard */
109	int rc = VINF_SUCCESS;
110	PasteboardItemID itemID;
111	if (!(err = PasteboardGetItemIdentifier(pPasteboard, 1, &itemID)))
112	{
113	/* Retrieve all flavors in the pasteboard, maybe there
114	* is something we can use. */
115	CFArrayRef flavorTypeArray;
116	if (!(err = PasteboardCopyItemFlavors(pPasteboard, itemID, &flavorTypeArray)))
117	{
118	CFIndex flavorCount;
119	flavorCount = CFArrayGetCount(flavorTypeArray);
120	for (CFIndex flavorIndex = 0; flavorIndex < flavorCount; flavorIndex++)
121	{
122	CFStringRef flavorType;
123	flavorType = static_cast <CFStringRef>(CFArrayGetValueAtIndex(flavorTypeArray,
124	flavorIndex));
125	/* Currently only unicode supported */
126	if (UTTypeConformsTo(flavorType, kUTTypeUTF8PlainText) \|\|
127	UTTypeConformsTo(flavorType, kUTTypeUTF16PlainText))
128	{
129	Log(("Unicode flavor detected.\n"));
130	*pfFormats \|= VBOX_SHCL_FMT_UNICODETEXT;
131	}
132	else if (UTTypeConformsTo(flavorType, kUTTypeBMP))
133	{
134	Log(("BMP flavor detected.\n"));
135	*pfFormats \|= VBOX_SHCL_FMT_BITMAP;
136	}
137	}
138	CFRelease(flavorTypeArray);
139	}
140	}
141
142	Log(("queryNewPasteboardFormats: rc = %02X\n", rc));
143	return rc;
144	}
145
146	/**
147	* Read content from the host clipboard and write it to the internal clipboard
148	* structure for further processing.
149	*
150	* @param pPasteboard Reference to the global pasteboard.
151	* @param fFormat The format type which should be read.
152	* @param pv The destination buffer.
153	* @param cb The size of the destination buffer.
154	* @param pcbActual The size which is needed to transfer the content.
155	*
156	* @returns IPRT status code.
157	*/
158	int readFromPasteboard(PasteboardRef pPasteboard, uint32_t fFormat, void pv, uint32_t cb, uint32_t pcbActual)
159	{
160	Log(("readFromPasteboard: fFormat = %02X\n", fFormat));
161
162	OSStatus err = noErr;
163
164	/* Make sure all is in sync */
165	PasteboardSynchronize(pPasteboard);
166
167	/* Are some items in the pasteboard? */
168	ItemCount itemCount;
169	err = PasteboardGetItemCount(pPasteboard, &itemCount);
170	if (itemCount < 1)
171	return VINF_SUCCESS;
172
173	/* The id of the first element in the pasteboard */
174	int rc = VERR_NOT_SUPPORTED;
175	PasteboardItemID itemID;
176	if (!(err = PasteboardGetItemIdentifier(pPasteboard, 1, &itemID)))
177	{
178	/* The guest request unicode */
179	if (fFormat & VBOX_SHCL_FMT_UNICODETEXT)
180	{
181	CFDataRef outData;
182	PRTUTF16 pwszTmp = NULL;
183	/* Try utf-16 first */
184	if (!(err = PasteboardCopyItemFlavorData(pPasteboard, itemID, kUTTypeUTF16PlainText, &outData)))
185	{
186	Log(("Clipboard content is utf-16\n"));
187
188	PRTUTF16 pwszString = (PRTUTF16)CFDataGetBytePtr(outData);
189	if (pwszString)
190	rc = RTUtf16DupEx(&pwszTmp, pwszString, 0);
191	else
192	rc = VERR_INVALID_PARAMETER;
193	}
194	/* Second try is utf-8 */
195	else
196	if (!(err = PasteboardCopyItemFlavorData(pPasteboard, itemID, kUTTypeUTF8PlainText, &outData)))
197	{
198	Log(("readFromPasteboard: clipboard content is utf-8\n"));
199	const char pszString = (const char )CFDataGetBytePtr(outData);
200	if (pszString)
201	rc = RTStrToUtf16(pszString, &pwszTmp);
202	else
203	rc = VERR_INVALID_PARAMETER;
204	}
205	if (pwszTmp)
206	{
207	/* Check how much longer will the converted text will be. */
208	size_t cwSrc = RTUtf16Len(pwszTmp);
209	size_t cwDest;
210	rc = ShClUtf16GetWinSize(pwszTmp, cwSrc, &cwDest);
211	if (RT_FAILURE(rc))
212	{
213	RTUtf16Free(pwszTmp);
214	Log(("readFromPasteboard: clipboard conversion failed. vboxClipboardUtf16GetWinSize returned %Rrc. Abandoning.\n", rc));
215	AssertRCReturn(rc, rc);
216	}
217	/* Set the actually needed data size */
218	pcbActual = cwDest 2;
219	/* Return success state */
220	rc = VINF_SUCCESS;
221	/* Do not copy data if the dst buffer is not big enough. */
222	if (*pcbActual <= cb)
223	{
224	rc = ShClUtf16LinToWin(pwszTmp, RTUtf16Len(pwszTmp), static_cast <PRTUTF16>(pv), cb / 2);
225	if (RT_FAILURE(rc))
226	{
227	RTUtf16Free(pwszTmp);
228	Log(("readFromPasteboard: clipboard conversion failed. vboxClipboardUtf16LinToWin() returned %Rrc. Abandoning.\n", rc));
229	AssertRCReturn(rc, rc);
230	}
231	#ifdef SHOW_CLIPBOARD_CONTENT
232	Log(("readFromPasteboard: clipboard content: %ls\n", static_cast <PRTUTF16>(pv)));
233	#endif
234	}
235	/* Free the temp string */
236	RTUtf16Free(pwszTmp);
237	}
238	}
239	/* The guest request BITMAP */
240	else if (fFormat & VBOX_SHCL_FMT_BITMAP)
241	{
242	CFDataRef outData;
243	const void *pTmp = NULL;
244	size_t cbTmpSize;
245	/* Get the data from the pasteboard */
246	if (!(err = PasteboardCopyItemFlavorData(pPasteboard, itemID, kUTTypeBMP, &outData)))
247	{
248	Log(("Clipboard content is BMP\n"));
249	pTmp = CFDataGetBytePtr(outData);
250	cbTmpSize = CFDataGetLength(outData);
251	}
252	if (pTmp)
253	{
254	const void *pDib;
255	size_t cbDibSize;
256	rc = ShClBmpGetDib(pTmp, cbTmpSize, &pDib, &cbDibSize);
257	if (RT_FAILURE(rc))
258	{
259	rc = VERR_NOT_SUPPORTED;
260	Log(("readFromPasteboard: unknown bitmap format. vboxClipboardBmpGetDib returned %Rrc. Abandoning.\n", rc));
261	AssertRCReturn(rc, rc);
262	}
263
264	*pcbActual = cbDibSize;
265	/* Return success state */
266	rc = VINF_SUCCESS;
267	/* Do not copy data if the dst buffer is not big enough. */
268	if (*pcbActual <= cb)
269	{
270	memcpy(pv, pDib, cbDibSize);
271	#ifdef SHOW_CLIPBOARD_CONTENT
272	Log(("readFromPasteboard: clipboard content bitmap %d bytes\n", cbDibSize));
273	#endif
274	}
275	}
276	}
277	}
278
279	Log(("readFromPasteboard: rc = %02X\n", rc));
280	return rc;
281	}
282
283	/**
284	* Write clipboard content to the host clipboard from the internal clipboard
285	* structure.
286	*
287	* @param pPasteboard Reference to the global pasteboard.
288	* @param pv The source buffer.
289	* @param cb The size of the source buffer.
290	* @param fFormat The format type which should be written.
291	*
292	* @returns IPRT status code.
293	*/
294	int writeToPasteboard(PasteboardRef pPasteboard, void *pv, uint32_t cb, uint32_t fFormat)
295	{
296	Log(("writeToPasteboard: fFormat = %02X\n", fFormat));
297
298	/* Clear the pasteboard */
299	if (PasteboardClear(pPasteboard))
300	return VERR_NOT_SUPPORTED;
301
302	/* Make sure all is in sync */
303	PasteboardSynchronize(pPasteboard);
304
305	int rc = VERR_NOT_SUPPORTED;
306	/* Handle the unicode text */
307	if (fFormat & VBOX_SHCL_FMT_UNICODETEXT)
308	{
309	PRTUTF16 pwszSrcText = static_cast <PRTUTF16>(pv);
310	size_t cwSrc = cb / 2;
311	size_t cwDest = 0;
312	/* How long will the converted text be? */
313	rc = ShClUtf16GetLinSize(pwszSrcText, cwSrc, &cwDest);
314	if (RT_FAILURE(rc))
315	{
316	Log(("writeToPasteboard: clipboard conversion failed. vboxClipboardUtf16GetLinSize returned %Rrc. Abandoning.\n", rc));
317	AssertRCReturn(rc, rc);
318	}
319	/* Empty clipboard? Not critical */
320	if (cwDest == 0)
321	{
322	Log(("writeToPasteboard: received empty clipboard data from the guest, returning false.\n"));
323	return VINF_SUCCESS;
324	}
325	/* Allocate the necessary memory */
326	PRTUTF16 pwszDestText = static_cast <PRTUTF16>(RTMemAlloc(cwDest * 2));
327	if (pwszDestText == NULL)
328	{
329	Log(("writeToPasteboard: failed to allocate %d bytes\n", cwDest * 2));
330	return VERR_NO_MEMORY;
331	}
332	/* Convert the EOL */
333	rc = ShClUtf16WinToLin(pwszSrcText, cwSrc, pwszDestText, cwDest);
334	if (RT_FAILURE(rc))
335	{
336	Log(("writeToPasteboard: clipboard conversion failed. vboxClipboardUtf16WinToLin() returned %Rrc. Abandoning.\n", rc));
337	RTMemFree(pwszDestText);
338	AssertRCReturn(rc, rc);
339	}
340
341	CFDataRef textData = NULL;
342	/* Item id is 1. Nothing special here. */
343	PasteboardItemID itemId = (PasteboardItemID)1;
344	/* Create a CData object which we could pass to the pasteboard */
345	if ((textData = CFDataCreate(kCFAllocatorDefault,
346	reinterpret_cast<UInt8>(pwszDestText), cwDest 2)))
347	{
348	/* Put the Utf-16 version to the pasteboard */
349	PasteboardPutItemFlavor(pPasteboard, itemId,
350	kUTTypeUTF16PlainText,
351	textData, 0);
352	}
353	/* Create a Utf-8 version */
354	char *pszDestText;
355	rc = RTUtf16ToUtf8(pwszDestText, &pszDestText);
356	if (RT_SUCCESS(rc))
357	{
358	/* Create a CData object which we could pass to the pasteboard */
359	if ((textData = CFDataCreate(kCFAllocatorDefault,
360	reinterpret_cast<UInt8*>(pszDestText), strlen(pszDestText))))
361	{
362	/* Put the Utf-8 version to the pasteboard */
363	PasteboardPutItemFlavor(pPasteboard, itemId,
364	kUTTypeUTF8PlainText,
365	textData, 0);
366	}
367	RTStrFree(pszDestText);
368	}
369
370	RTMemFree(pwszDestText);
371	rc = VINF_SUCCESS;
372	}
373	/* Handle the bitmap */
374	else if (fFormat & VBOX_SHCL_FMT_BITMAP)
375	{
376	/* Create a full BMP from it */
377	void *pBmp;
378	size_t cbBmpSize;
379	CFDataRef bmpData = NULL;
380	/* Item id is 1. Nothing special here. */
381	PasteboardItemID itemId = (PasteboardItemID)1;
382
383	rc = ShClDibToBmp(pv, cb, &pBmp, &cbBmpSize);
384	if (RT_SUCCESS(rc))
385	{
386	/* Create a CData object which we could pass to the pasteboard */
387	if ((bmpData = CFDataCreate(kCFAllocatorDefault,
388	reinterpret_cast<UInt8*>(pBmp), cbBmpSize)))
389	{
390	/* Put the Utf-8 version to the pasteboard */
391	PasteboardPutItemFlavor(pPasteboard, itemId,
392	kUTTypeBMP,
393	bmpData, 0);
394	}
395	RTMemFree(pBmp);
396	}
397	rc = VINF_SUCCESS;
398	}
399	else
400	rc = VERR_NOT_IMPLEMENTED;
401
402	Log(("writeToPasteboard: rc = %02X\n", rc));
403	return rc;
404	}
405

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source: vbox/trunk/src/VBox/HostServices/SharedClipboard/darwin-pasteboard.cpp@ 82968

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