source: branches/4.5.1/src/gui/kernel/qclipboard_mac.cpp

Last change on this file was 2, checked in by Dmitry A. Kuminov, 17 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 19.0 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the QtGui module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at qt-sales@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qclipboard.h"
43#include "qapplication.h"
44#include "qbitmap.h"
45#include "qdatetime.h"
46#include "qdebug.h"
47#include "qapplication_p.h"
48#include <private/qt_mac_p.h>
49#include "qevent.h"
50#include "qurl.h"
51#include <stdlib.h>
52#include <string.h>
53
54QT_BEGIN_NAMESPACE
55
56QT_USE_NAMESPACE
57
58/*****************************************************************************
59 QClipboard debug facilities
60 *****************************************************************************/
61//#define DEBUG_PASTEBOARD
62
63#ifndef QT_NO_CLIPBOARD
64
65/*****************************************************************************
66 QClipboard member functions for mac.
67 *****************************************************************************/
68
69static QMacPasteboard *qt_mac_pasteboards[2] = {0, 0};
70
71static inline QMacPasteboard *qt_mac_pasteboard(QClipboard::Mode mode)
72{
73 Q_ASSERT(mode == QClipboard::Clipboard || mode == QClipboard::FindBuffer);
74 if (mode == QClipboard::Clipboard)
75 return qt_mac_pasteboards[0];
76 else
77 return qt_mac_pasteboards[1];
78}
79
80static void qt_mac_cleanupPasteboard() {
81 delete qt_mac_pasteboards[0];
82 delete qt_mac_pasteboards[1];
83 qt_mac_pasteboards[0] = 0;
84 qt_mac_pasteboards[1] = 0;
85}
86
87static bool qt_mac_updateScrap(QClipboard::Mode mode)
88{
89 if(!qt_mac_pasteboards[0]) {
90 qt_mac_pasteboards[0] = new QMacPasteboard(kPasteboardClipboard, QMacPasteboardMime::MIME_CLIP);
91 qt_mac_pasteboards[1] = new QMacPasteboard(kPasteboardFind, QMacPasteboardMime::MIME_CLIP);
92 qAddPostRoutine(qt_mac_cleanupPasteboard);
93 return true;
94 }
95 return qt_mac_pasteboard(mode)->sync();
96}
97
98void QClipboard::clear(Mode mode)
99{
100 if (!supportsMode(mode))
101 return;
102 qt_mac_updateScrap(mode);
103 qt_mac_pasteboard(mode)->clear();
104 setMimeData(0, mode);
105}
106
107void QClipboard::ownerDestroyed()
108{
109}
110
111
112void QClipboard::connectNotify(const char *signal)
113{
114 Q_UNUSED(signal);
115}
116
117bool QClipboard::event(QEvent *e)
118{
119 if(e->type() != QEvent::Clipboard)
120 return QObject::event(e);
121
122 if (qt_mac_updateScrap(QClipboard::Clipboard)) {
123 emitChanged(QClipboard::Clipboard);
124 }
125
126 if (qt_mac_updateScrap(QClipboard::FindBuffer)) {
127 emitChanged(QClipboard::FindBuffer);
128 }
129
130 return QObject::event(e);
131}
132
133const QMimeData *QClipboard::mimeData(Mode mode) const
134{
135 if (!supportsMode(mode))
136 return 0;
137 qt_mac_updateScrap(mode);
138 return qt_mac_pasteboard(mode)->mimeData();
139}
140
141void QClipboard::setMimeData(QMimeData *src, Mode mode)
142{
143 if (!supportsMode(mode))
144 return;
145 qt_mac_updateScrap(mode);
146 qt_mac_pasteboard(mode)->setMimeData(src);
147 emitChanged(mode);
148}
149
150bool QClipboard::supportsMode(Mode mode) const
151{
152 return (mode == Clipboard || mode == FindBuffer);
153}
154
155bool QClipboard::ownsMode(Mode mode) const
156{
157 Q_UNUSED(mode);
158 return false;
159}
160
161#endif // QT_NO_CLIPBOARD
162
163/*****************************************************************************
164 QMacPasteboard code
165*****************************************************************************/
166
167QMacPasteboard::QMacPasteboard(PasteboardRef p, uchar mt)
168{
169 mac_mime_source = false;
170 mime_type = mt ? mt : uchar(QMacPasteboardMime::MIME_ALL);
171 paste = p;
172 CFRetain(paste);
173}
174
175QMacPasteboard::QMacPasteboard(uchar mt)
176{
177 mac_mime_source = false;
178 mime_type = mt ? mt : uchar(QMacPasteboardMime::MIME_ALL);
179 paste = 0;
180 OSStatus err = PasteboardCreate(0, &paste);
181 if(err == noErr) {
182 PasteboardSetPromiseKeeper(paste, promiseKeeper, this);
183 } else {
184 qDebug("PasteBoard: Error creating pasteboard: [%d]", (int)err);
185 }
186}
187
188QMacPasteboard::QMacPasteboard(CFStringRef name, uchar mt)
189{
190 mac_mime_source = false;
191 mime_type = mt ? mt : uchar(QMacPasteboardMime::MIME_ALL);
192 paste = 0;
193 OSStatus err = PasteboardCreate(name, &paste);
194 if(err == noErr) {
195 PasteboardSetPromiseKeeper(paste, promiseKeeper, this);
196 } else {
197 qDebug("PasteBoard: Error creating pasteboard: %s [%d]", QCFString::toQString(name).toLatin1().constData(), (int)err);
198 }
199}
200
201QMacPasteboard::~QMacPasteboard()
202{
203 // commit all promises for paste after exit close
204 for (int i = 0; i < promises.count(); ++i) {
205 const Promise &promise = promises.at(i);
206 QCFString flavor = QCFString(promise.convertor->flavorFor(promise.mime));
207 promiseKeeper(paste, (PasteboardItemID)promise.itemId, flavor, this);
208 }
209
210 if(paste)
211 CFRelease(paste);
212}
213
214PasteboardRef
215QMacPasteboard::pasteBoard() const
216{
217 return paste;
218}
219
220OSStatus QMacPasteboard::promiseKeeper(PasteboardRef paste, PasteboardItemID id, CFStringRef flavor, void *_qpaste)
221{
222 QMacPasteboard *qpaste = (QMacPasteboard*)_qpaste;
223 const long promise_id = (long)id;
224
225 // Find the kept promise
226 const QString flavorAsQString = QCFString::toQString(flavor);
227 QMacPasteboard::Promise promise;
228 for (int i = 0; i < qpaste->promises.size(); i++){
229 QMacPasteboard::Promise tmp = qpaste->promises[i];
230 if (tmp.itemId == promise_id && tmp.convertor->canConvert(tmp.mime, flavorAsQString)){
231 promise = tmp;
232 break;
233 }
234 }
235
236 if (!promise.itemId && flavorAsQString == QLatin1String("com.trolltech.qt.MimeTypeName")) {
237 // we have promised this data, but wont be able to convert, so return null data.
238 // This helps in making the application/x-qt-mime-type-name hidden from normal use.
239 QByteArray ba;
240 QCFType<CFDataRef> data = CFDataCreate(0, (UInt8*)ba.constData(), ba.size());
241 PasteboardPutItemFlavor(paste, id, flavor, data, kPasteboardFlavorNoFlags);
242 return noErr;
243 }
244
245 if (!promise.itemId) {
246 // There was no promise that could deliver data for the
247 // given id and flavor. This should not happend.
248 qDebug("Pasteboard: %d: Request for %ld, %s, but no promise found!", __LINE__, promise_id, qPrintable(flavorAsQString));
249 return cantGetFlavorErr;
250 }
251
252#ifdef DEBUG_PASTEBOARD
253 qDebug("PasteBoard: Calling in promise for %s[%ld] [%s] (%s) [%d]", qPrintable(promise.mime), promise_id,
254 qPrintable(flavorAsQString), qPrintable(promise.convertor->convertorName()), promise.offset);
255#endif
256
257 QList<QByteArray> md = promise.convertor->convertFromMime(promise.mime, promise.data, flavorAsQString);
258 if (md.size() <= promise.offset)
259 return cantGetFlavorErr;
260 const QByteArray &ba = md[promise.offset];
261 QCFType<CFDataRef> data = CFDataCreate(0, (UInt8*)ba.constData(), ba.size());
262 PasteboardPutItemFlavor(paste, id, flavor, data, kPasteboardFlavorNoFlags);
263 return noErr;
264}
265
266bool
267QMacPasteboard::hasOSType(int c_flavor) const
268{
269 if (!paste)
270 return false;
271
272 sync();
273
274 ItemCount cnt = 0;
275 if(PasteboardGetItemCount(paste, &cnt) || !cnt)
276 return false;
277
278#ifdef DEBUG_PASTEBOARD
279 qDebug("PasteBoard: hasOSType [%c%c%c%c]", (c_flavor>>24)&0xFF, (c_flavor>>16)&0xFF,
280 (c_flavor>>8)&0xFF, (c_flavor>>0)&0xFF);
281#endif
282 for(uint index = 1; index <= cnt; ++index) {
283
284 PasteboardItemID id;
285 if(PasteboardGetItemIdentifier(paste, index, &id) != noErr)
286 return false;
287
288 QCFType<CFArrayRef> types;
289 if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr)
290 return false;
291
292 const int type_count = CFArrayGetCount(types);
293 for(int i = 0; i < type_count; ++i) {
294 CFStringRef flavor = (CFStringRef)CFArrayGetValueAtIndex(types, i);
295 const int os_flavor = UTGetOSTypeFromString(UTTypeCopyPreferredTagWithClass(flavor, kUTTagClassOSType));
296 if(os_flavor == c_flavor) {
297#ifdef DEBUG_PASTEBOARD
298 qDebug(" - Found!");
299#endif
300 return true;
301 }
302 }
303 }
304#ifdef DEBUG_PASTEBOARD
305 qDebug(" - NotFound!");
306#endif
307 return false;
308}
309
310bool
311QMacPasteboard::hasFlavor(QString c_flavor) const
312{
313 if (!paste)
314 return false;
315
316 sync();
317
318 ItemCount cnt = 0;
319 if(PasteboardGetItemCount(paste, &cnt) || !cnt)
320 return false;
321
322#ifdef DEBUG_PASTEBOARD
323 qDebug("PasteBoard: hasFlavor [%s]", qPrintable(c_flavor));
324#endif
325 for(uint index = 1; index <= cnt; ++index) {
326
327 PasteboardItemID id;
328 if(PasteboardGetItemIdentifier(paste, index, &id) != noErr)
329 return false;
330
331 PasteboardFlavorFlags flags;
332 if(PasteboardGetItemFlavorFlags(paste, id, QCFString(c_flavor), &flags) == noErr) {
333#ifdef DEBUG_PASTEBOARD
334 qDebug(" - Found!");
335#endif
336 return true;
337 }
338 }
339#ifdef DEBUG_PASTEBOARD
340 qDebug(" - NotFound!");
341#endif
342 return false;
343}
344
345class QMacPasteboardMimeSource : public QMimeData {
346 const QMacPasteboard *paste;
347public:
348 QMacPasteboardMimeSource(const QMacPasteboard *p) : QMimeData(), paste(p) { }
349 ~QMacPasteboardMimeSource() { }
350 virtual QStringList formats() const { return paste->formats(); }
351 virtual QVariant retrieveData(const QString &format, QVariant::Type type) const { return paste->retrieveData(format, type); }
352};
353
354QMimeData
355*QMacPasteboard::mimeData() const
356{
357 if(!mime) {
358 mac_mime_source = true;
359 mime = new QMacPasteboardMimeSource(this);
360
361 }
362 return mime;
363}
364
365class QMacMimeData : public QMimeData
366{
367public:
368 QVariant variantData(const QString &mime) { return retrieveData(mime, QVariant::Invalid); }
369private:
370 QMacMimeData();
371};
372
373void
374QMacPasteboard::setMimeData(QMimeData *mime_src)
375{
376 if (!paste)
377 return;
378
379 if (mime == mime_src || (!mime_src && mime && mac_mime_source))
380 return;
381 mac_mime_source = false;
382 delete mime;
383 mime = mime_src;
384
385 QList<QMacPasteboardMime*> availableConverters = QMacPasteboardMime::all(mime_type);
386 if (mime != 0) {
387 clear_helper();
388 QStringList formats = mime_src->formats();
389
390 for(int f = 0; f < formats.size(); ++f) {
391 QString mimeType = formats.at(f);
392 for (QList<QMacPasteboardMime *>::Iterator it = availableConverters.begin(); it != availableConverters.end(); ++it) {
393 QMacPasteboardMime *c = (*it);
394 QString flavor(c->flavorFor(mimeType));
395 if(!flavor.isEmpty()) {
396 QVariant mimeData = static_cast<QMacMimeData*>(mime_src)->variantData(mimeType);
397#if 0
398 //### Grrr, why didn't I put in a virtual int QMacPasteboardMime::count()? --Sam
399 const int numItems = c->convertFromMime(mimeType, mimeData, flavor).size();
400#else
401 int numItems = 1; //this is a hack but it is much faster than allowing conversion above
402 if(c->convertorName() == QLatin1String("FileURL"))
403 numItems = mime_src->urls().count();
404#endif
405 for(int item = 0; item < numItems; ++item) {
406 const int itemID = item+1; //id starts at 1
407 promises.append(QMacPasteboard::Promise(itemID, c, mimeType, mimeData, item));
408 PasteboardPutItemFlavor(paste, (PasteboardItemID)itemID, QCFString(flavor), 0, kPasteboardFlavorNoFlags);
409#ifdef DEBUG_PASTEBOARD
410 qDebug(" - adding %d %s [%s] <%s> [%d]",
411 itemID, qPrintable(mimeType), qPrintable(flavor), qPrintable(c->convertorName()), item);
412#endif
413 }
414 }
415 }
416 }
417 }
418}
419
420QStringList
421QMacPasteboard::formats() const
422{
423 if (!paste)
424 return QStringList();
425
426 sync();
427
428 QStringList ret;
429 ItemCount cnt = 0;
430 if(PasteboardGetItemCount(paste, &cnt) || !cnt)
431 return ret;
432
433#ifdef DEBUG_PASTEBOARD
434 qDebug("PasteBoard: Formats [%d]", (int)cnt);
435#endif
436 for(uint index = 1; index <= cnt; ++index) {
437
438 PasteboardItemID id;
439 if(PasteboardGetItemIdentifier(paste, index, &id) != noErr)
440 continue;
441
442 QCFType<CFArrayRef> types;
443 if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr)
444 continue;
445
446 const int type_count = CFArrayGetCount(types);
447 for(int i = 0; i < type_count; ++i) {
448 const QString flavor = QCFString::toQString((CFStringRef)CFArrayGetValueAtIndex(types, i));
449#ifdef DEBUG_PASTEBOARD
450 qDebug(" -%s", qPrintable(QString(flavor)));
451#endif
452 QString mimeType = QMacPasteboardMime::flavorToMime(mime_type, flavor);
453 if(!mimeType.isEmpty() && !ret.contains(mimeType)) {
454#ifdef DEBUG_PASTEBOARD
455 qDebug(" -<%d> %s [%s]", ret.size(), qPrintable(mimeType), qPrintable(QString(flavor)));
456#endif
457 ret << mimeType;
458 }
459 }
460 }
461 return ret;
462}
463
464bool
465QMacPasteboard::hasFormat(const QString &format) const
466{
467 if (!paste)
468 return false;
469
470 sync();
471
472 ItemCount cnt = 0;
473 if(PasteboardGetItemCount(paste, &cnt) || !cnt)
474 return false;
475
476#ifdef DEBUG_PASTEBOARD
477 qDebug("PasteBoard: hasFormat [%s]", qPrintable(format));
478#endif
479 for(uint index = 1; index <= cnt; ++index) {
480
481 PasteboardItemID id;
482 if(PasteboardGetItemIdentifier(paste, index, &id) != noErr)
483 continue;
484
485 QCFType<CFArrayRef> types;
486 if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr)
487 continue;
488
489 const int type_count = CFArrayGetCount(types);
490 for(int i = 0; i < type_count; ++i) {
491 const QString flavor = QCFString::toQString((CFStringRef)CFArrayGetValueAtIndex(types, i));
492#ifdef DEBUG_PASTEBOARD
493 qDebug(" -%s [0x%x]", qPrintable(QString(flavor)), mime_type);
494#endif
495 QString mimeType = QMacPasteboardMime::flavorToMime(mime_type, flavor);
496#ifdef DEBUG_PASTEBOARD
497 if(!mimeType.isEmpty())
498 qDebug(" - %s", qPrintable(mimeType));
499#endif
500 if(mimeType == format)
501 return true;
502 }
503 }
504 return false;
505}
506
507QVariant
508QMacPasteboard::retrieveData(const QString &format, QVariant::Type) const
509{
510 if (!paste)
511 return QVariant();
512
513 sync();
514
515 ItemCount cnt = 0;
516 if(PasteboardGetItemCount(paste, &cnt) || !cnt)
517 return QByteArray();
518
519#ifdef DEBUG_PASTEBOARD
520 qDebug("Pasteboard: retrieveData [%s]", qPrintable(format));
521#endif
522 const QList<QMacPasteboardMime *> mimes = QMacPasteboardMime::all(mime_type);
523 for(int mime = 0; mime < mimes.size(); ++mime) {
524 QMacPasteboardMime *c = mimes.at(mime);
525 QString c_flavor = c->flavorFor(format);
526 if(!c_flavor.isEmpty()) {
527 // Handle text/plain a little differently. Try handling Unicode first.
528 if((c_flavor == QLatin1String("com.apple.traditional-mac-plain-text") || c_flavor == QLatin1String("public.utf8-plain-text")) &&
529 hasFlavor(QLatin1String("public.utf16-plain-text")))
530 c_flavor = QLatin1String("public.utf16-plain-text");
531
532 QVariant ret;
533 QList<QByteArray> retList;
534 for(uint index = 1; index <= cnt; ++index) {
535 PasteboardItemID id;
536 if(PasteboardGetItemIdentifier(paste, index, &id) != noErr)
537 continue;
538
539 QCFType<CFArrayRef> types;
540 if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr)
541 continue;
542
543 const int type_count = CFArrayGetCount(types);
544 for(int i = 0; i < type_count; ++i) {
545 CFStringRef flavor = static_cast<CFStringRef>(CFArrayGetValueAtIndex(types, i));
546 if(c_flavor == QCFString::toQString(flavor)) {
547 QCFType<CFDataRef> macBuffer;
548 if(PasteboardCopyItemFlavorData(paste, id, flavor, &macBuffer) == noErr) {
549 QByteArray buffer((const char *)CFDataGetBytePtr(macBuffer), CFDataGetLength(macBuffer));
550 if(!buffer.isEmpty()) {
551#ifdef DEBUG_PASTEBOARD
552 qDebug(" - %s [%s] (%s)", qPrintable(format), qPrintable(QCFString::toQString(flavor)), qPrintable(c->convertorName()));
553#endif
554 buffer.detach(); //detach since we release the macBuffer
555 retList.append(buffer);
556 break; //skip to next element
557 }
558 }
559 } else {
560#ifdef DEBUG_PASTEBOARD
561 qDebug(" - NoMatch %s [%s] (%s)", qPrintable(c_flavor), qPrintable(QCFString::toQString(flavor)), qPrintable(c->convertorName()));
562#endif
563 }
564 }
565 }
566
567 if (!retList.isEmpty()) {
568 ret = c->convertToMime(format, retList, c_flavor);
569 return ret;
570 }
571 }
572 }
573 return QVariant();
574}
575
576void QMacPasteboard::clear_helper()
577{
578 if (paste)
579 PasteboardClear(paste);
580 promises.clear();
581}
582
583void
584QMacPasteboard::clear()
585{
586#ifdef DEBUG_PASTEBOARD
587 qDebug("PasteBoard: clear!");
588#endif
589 clear_helper();
590}
591
592bool
593QMacPasteboard::sync() const
594{
595 if (!paste)
596 return false;
597 const bool fromGlobal = PasteboardSynchronize(paste) & kPasteboardModified;
598
599 if (fromGlobal)
600 const_cast<QMacPasteboard *>(this)->setMimeData(0);
601
602#ifdef DEBUG_PASTEBOARD
603 if(fromGlobal)
604 qDebug("Pasteboard: Syncronize!");
605#endif
606 return fromGlobal;
607}
608
609
610
611
612QT_END_NAMESPACE
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