diff options
Diffstat (limited to 'src/widgets/platforms/mac/qclipboard_mac.cpp')
| -rw-r--r-- | src/widgets/platforms/mac/qclipboard_mac.cpp | 634 |
1 files changed, 634 insertions, 0 deletions
diff --git a/src/widgets/platforms/mac/qclipboard_mac.cpp b/src/widgets/platforms/mac/qclipboard_mac.cpp new file mode 100644 index 0000000000..4a8bc56e41 --- /dev/null +++ b/src/widgets/platforms/mac/qclipboard_mac.cpp @@ -0,0 +1,634 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qclipboard.h" +#include "qapplication.h" +#include "qbitmap.h" +#include "qdatetime.h" +#include "qdebug.h" +#include "qapplication_p.h" +#include <private/qt_mac_p.h> +#include "qevent.h" +#include "qurl.h" +#include <stdlib.h> +#include <string.h> +#include "qt_cocoa_helpers_mac_p.h" + +QT_BEGIN_NAMESPACE + +QT_USE_NAMESPACE + +/***************************************************************************** + QClipboard debug facilities + *****************************************************************************/ +//#define DEBUG_PASTEBOARD + +#ifndef QT_NO_CLIPBOARD + +/***************************************************************************** + QClipboard member functions for mac. + *****************************************************************************/ + +static QMacPasteboard *qt_mac_pasteboards[2] = {0, 0}; + +static inline QMacPasteboard *qt_mac_pasteboard(QClipboard::Mode mode) +{ + Q_ASSERT(mode == QClipboard::Clipboard || mode == QClipboard::FindBuffer); + if (mode == QClipboard::Clipboard) + return qt_mac_pasteboards[0]; + else + return qt_mac_pasteboards[1]; +} + +static void qt_mac_cleanupPasteboard() { + delete qt_mac_pasteboards[0]; + delete qt_mac_pasteboards[1]; + qt_mac_pasteboards[0] = 0; + qt_mac_pasteboards[1] = 0; +} + +static bool qt_mac_updateScrap(QClipboard::Mode mode) +{ + if(!qt_mac_pasteboards[0]) { + qt_mac_pasteboards[0] = new QMacPasteboard(kPasteboardClipboard, QMacPasteboardMime::MIME_CLIP); + qt_mac_pasteboards[1] = new QMacPasteboard(kPasteboardFind, QMacPasteboardMime::MIME_CLIP); + qAddPostRoutine(qt_mac_cleanupPasteboard); + return true; + } + return qt_mac_pasteboard(mode)->sync(); +} + +void QClipboard::clear(Mode mode) +{ + if (!supportsMode(mode)) + return; + qt_mac_updateScrap(mode); + qt_mac_pasteboard(mode)->clear(); + setMimeData(0, mode); +} + +void QClipboard::ownerDestroyed() +{ +} + + +void QClipboard::connectNotify(const char *signal) +{ + Q_UNUSED(signal); +} + +bool QClipboard::event(QEvent *e) +{ + if(e->type() != QEvent::Clipboard) + return QObject::event(e); + + if (qt_mac_updateScrap(QClipboard::Clipboard)) { + emitChanged(QClipboard::Clipboard); + } + + if (qt_mac_updateScrap(QClipboard::FindBuffer)) { + emitChanged(QClipboard::FindBuffer); + } + + return QObject::event(e); +} + +const QMimeData *QClipboard::mimeData(Mode mode) const +{ + if (!supportsMode(mode)) + return 0; + qt_mac_updateScrap(mode); + return qt_mac_pasteboard(mode)->mimeData(); +} + +void QClipboard::setMimeData(QMimeData *src, Mode mode) +{ + if (!supportsMode(mode)) + return; + qt_mac_updateScrap(mode); + qt_mac_pasteboard(mode)->setMimeData(src); + emitChanged(mode); +} + +bool QClipboard::supportsMode(Mode mode) const +{ + return (mode == Clipboard || mode == FindBuffer); +} + +bool QClipboard::ownsMode(Mode mode) const +{ + Q_UNUSED(mode); + return false; +} + +#endif // QT_NO_CLIPBOARD + +/***************************************************************************** + QMacPasteboard code +*****************************************************************************/ + +QMacPasteboard::QMacPasteboard(PasteboardRef p, uchar mt) +{ + mac_mime_source = false; + mime_type = mt ? mt : uchar(QMacPasteboardMime::MIME_ALL); + paste = p; + CFRetain(paste); +} + +QMacPasteboard::QMacPasteboard(uchar mt) +{ + mac_mime_source = false; + mime_type = mt ? mt : uchar(QMacPasteboardMime::MIME_ALL); + paste = 0; + OSStatus err = PasteboardCreate(0, &paste); + if(err == noErr) { + PasteboardSetPromiseKeeper(paste, promiseKeeper, this); + } else { + qDebug("PasteBoard: Error creating pasteboard: [%d]", (int)err); + } +} + +QMacPasteboard::QMacPasteboard(CFStringRef name, uchar mt) +{ + mac_mime_source = false; + mime_type = mt ? mt : uchar(QMacPasteboardMime::MIME_ALL); + paste = 0; + OSStatus err = PasteboardCreate(name, &paste); + if(err == noErr) { + PasteboardSetPromiseKeeper(paste, promiseKeeper, this); + } else { + qDebug("PasteBoard: Error creating pasteboard: %s [%d]", QCFString::toQString(name).toLatin1().constData(), (int)err); + } +} + +QMacPasteboard::~QMacPasteboard() +{ + // commit all promises for paste after exit close + for (int i = 0; i < promises.count(); ++i) { + const Promise &promise = promises.at(i); + QCFString flavor = QCFString(promise.convertor->flavorFor(promise.mime)); + promiseKeeper(paste, (PasteboardItemID)promise.itemId, flavor, this); + } + + if(paste) + CFRelease(paste); +} + +PasteboardRef +QMacPasteboard::pasteBoard() const +{ + return paste; +} + +OSStatus QMacPasteboard::promiseKeeper(PasteboardRef paste, PasteboardItemID id, CFStringRef flavor, void *_qpaste) +{ + QMacPasteboard *qpaste = (QMacPasteboard*)_qpaste; + const long promise_id = (long)id; + + // Find the kept promise + const QString flavorAsQString = QCFString::toQString(flavor); + QMacPasteboard::Promise promise; + for (int i = 0; i < qpaste->promises.size(); i++){ + QMacPasteboard::Promise tmp = qpaste->promises[i]; + if (tmp.itemId == promise_id && tmp.convertor->canConvert(tmp.mime, flavorAsQString)){ + promise = tmp; + break; + } + } + + if (!promise.itemId && flavorAsQString == QLatin1String("com.trolltech.qt.MimeTypeName")) { + // we have promised this data, but wont be able to convert, so return null data. + // This helps in making the application/x-qt-mime-type-name hidden from normal use. + QByteArray ba; + QCFType<CFDataRef> data = CFDataCreate(0, (UInt8*)ba.constData(), ba.size()); + PasteboardPutItemFlavor(paste, id, flavor, data, kPasteboardFlavorNoFlags); + return noErr; + } + + if (!promise.itemId) { + // There was no promise that could deliver data for the + // given id and flavor. This should not happend. + qDebug("Pasteboard: %d: Request for %ld, %s, but no promise found!", __LINE__, promise_id, qPrintable(flavorAsQString)); + return cantGetFlavorErr; + } + +#ifdef DEBUG_PASTEBOARD + qDebug("PasteBoard: Calling in promise for %s[%ld] [%s] (%s) [%d]", qPrintable(promise.mime), promise_id, + qPrintable(flavorAsQString), qPrintable(promise.convertor->convertorName()), promise.offset); +#endif + + QList<QByteArray> md = promise.convertor->convertFromMime(promise.mime, promise.data, flavorAsQString); + if (md.size() <= promise.offset) + return cantGetFlavorErr; + const QByteArray &ba = md[promise.offset]; + QCFType<CFDataRef> data = CFDataCreate(0, (UInt8*)ba.constData(), ba.size()); + PasteboardPutItemFlavor(paste, id, flavor, data, kPasteboardFlavorNoFlags); + return noErr; +} + +bool +QMacPasteboard::hasOSType(int c_flavor) const +{ + if (!paste) + return false; + + sync(); + + ItemCount cnt = 0; + if(PasteboardGetItemCount(paste, &cnt) || !cnt) + return false; + +#ifdef DEBUG_PASTEBOARD + qDebug("PasteBoard: hasOSType [%c%c%c%c]", (c_flavor>>24)&0xFF, (c_flavor>>16)&0xFF, + (c_flavor>>8)&0xFF, (c_flavor>>0)&0xFF); +#endif + for(uint index = 1; index <= cnt; ++index) { + + PasteboardItemID id; + if(PasteboardGetItemIdentifier(paste, index, &id) != noErr) + return false; + + QCFType<CFArrayRef> types; + if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr) + return false; + + const int type_count = CFArrayGetCount(types); + for(int i = 0; i < type_count; ++i) { + CFStringRef flavor = (CFStringRef)CFArrayGetValueAtIndex(types, i); + const int os_flavor = UTGetOSTypeFromString(UTTypeCopyPreferredTagWithClass(flavor, kUTTagClassOSType)); + if(os_flavor == c_flavor) { +#ifdef DEBUG_PASTEBOARD + qDebug(" - Found!"); +#endif + return true; + } + } + } +#ifdef DEBUG_PASTEBOARD + qDebug(" - NotFound!"); +#endif + return false; +} + +bool +QMacPasteboard::hasFlavor(QString c_flavor) const +{ + if (!paste) + return false; + + sync(); + + ItemCount cnt = 0; + if(PasteboardGetItemCount(paste, &cnt) || !cnt) + return false; + +#ifdef DEBUG_PASTEBOARD + qDebug("PasteBoard: hasFlavor [%s]", qPrintable(c_flavor)); +#endif + for(uint index = 1; index <= cnt; ++index) { + + PasteboardItemID id; + if(PasteboardGetItemIdentifier(paste, index, &id) != noErr) + return false; + + PasteboardFlavorFlags flags; + if(PasteboardGetItemFlavorFlags(paste, id, QCFString(c_flavor), &flags) == noErr) { +#ifdef DEBUG_PASTEBOARD + qDebug(" - Found!"); +#endif + return true; + } + } +#ifdef DEBUG_PASTEBOARD + qDebug(" - NotFound!"); +#endif + return false; +} + +class QMacPasteboardMimeSource : public QMimeData { + const QMacPasteboard *paste; +public: + QMacPasteboardMimeSource(const QMacPasteboard *p) : QMimeData(), paste(p) { } + ~QMacPasteboardMimeSource() { } + virtual QStringList formats() const { return paste->formats(); } + virtual QVariant retrieveData(const QString &format, QVariant::Type type) const { return paste->retrieveData(format, type); } +}; + +QMimeData +*QMacPasteboard::mimeData() const +{ + if(!mime) { + mac_mime_source = true; + mime = new QMacPasteboardMimeSource(this); + + } + return mime; +} + +class QMacMimeData : public QMimeData +{ +public: + QVariant variantData(const QString &mime) { return retrieveData(mime, QVariant::Invalid); } +private: + QMacMimeData(); +}; + +void +QMacPasteboard::setMimeData(QMimeData *mime_src) +{ + if (!paste) + return; + + if (mime == mime_src || (!mime_src && mime && mac_mime_source)) + return; + mac_mime_source = false; + delete mime; + mime = mime_src; + + QList<QMacPasteboardMime*> availableConverters = QMacPasteboardMime::all(mime_type); + if (mime != 0) { + clear_helper(); + QStringList formats = mime_src->formats(); + +#ifdef QT_MAC_USE_COCOA + // QMimeData sub classes reimplementing the formats() might not expose the + // temporary "application/x-qt-mime-type-name" mimetype. So check the existence + // of this mime type while doing drag and drop. + QString dummyMimeType(QLatin1String("application/x-qt-mime-type-name")); + if (!formats.contains(dummyMimeType)) { + QByteArray dummyType = mime_src->data(dummyMimeType); + if (!dummyType.isEmpty()) { + formats.append(dummyMimeType); + } + } +#endif + for(int f = 0; f < formats.size(); ++f) { + QString mimeType = formats.at(f); + for (QList<QMacPasteboardMime *>::Iterator it = availableConverters.begin(); it != availableConverters.end(); ++it) { + QMacPasteboardMime *c = (*it); + QString flavor(c->flavorFor(mimeType)); + if(!flavor.isEmpty()) { + QVariant mimeData = static_cast<QMacMimeData*>(mime_src)->variantData(mimeType); +#if 0 + //### Grrr, why didn't I put in a virtual int QMacPasteboardMime::count()? --Sam + const int numItems = c->convertFromMime(mimeType, mimeData, flavor).size(); +#else + int numItems = 1; //this is a hack but it is much faster than allowing conversion above + if(c->convertorName() == QLatin1String("FileURL")) + numItems = mime_src->urls().count(); +#endif + for(int item = 0; item < numItems; ++item) { + const int itemID = item+1; //id starts at 1 + promises.append(QMacPasteboard::Promise(itemID, c, mimeType, mimeData, item)); + PasteboardPutItemFlavor(paste, (PasteboardItemID)itemID, QCFString(flavor), 0, kPasteboardFlavorNoFlags); +#ifdef DEBUG_PASTEBOARD + qDebug(" - adding %d %s [%s] <%s> [%d]", + itemID, qPrintable(mimeType), qPrintable(flavor), qPrintable(c->convertorName()), item); +#endif + } + } + } + } + } +} + +QStringList +QMacPasteboard::formats() const +{ + if (!paste) + return QStringList(); + + sync(); + + QStringList ret; + ItemCount cnt = 0; + if(PasteboardGetItemCount(paste, &cnt) || !cnt) + return ret; + +#ifdef DEBUG_PASTEBOARD + qDebug("PasteBoard: Formats [%d]", (int)cnt); +#endif + for(uint index = 1; index <= cnt; ++index) { + + PasteboardItemID id; + if(PasteboardGetItemIdentifier(paste, index, &id) != noErr) + continue; + + QCFType<CFArrayRef> types; + if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr) + continue; + + const int type_count = CFArrayGetCount(types); + for(int i = 0; i < type_count; ++i) { + const QString flavor = QCFString::toQString((CFStringRef)CFArrayGetValueAtIndex(types, i)); +#ifdef DEBUG_PASTEBOARD + qDebug(" -%s", qPrintable(QString(flavor))); +#endif + QString mimeType = QMacPasteboardMime::flavorToMime(mime_type, flavor); + if(!mimeType.isEmpty() && !ret.contains(mimeType)) { +#ifdef DEBUG_PASTEBOARD + qDebug(" -<%d> %s [%s]", ret.size(), qPrintable(mimeType), qPrintable(QString(flavor))); +#endif + ret << mimeType; + } + } + } + return ret; +} + +bool +QMacPasteboard::hasFormat(const QString &format) const +{ + if (!paste) + return false; + + sync(); + + ItemCount cnt = 0; + if(PasteboardGetItemCount(paste, &cnt) || !cnt) + return false; + +#ifdef DEBUG_PASTEBOARD + qDebug("PasteBoard: hasFormat [%s]", qPrintable(format)); +#endif + for(uint index = 1; index <= cnt; ++index) { + + PasteboardItemID id; + if(PasteboardGetItemIdentifier(paste, index, &id) != noErr) + continue; + + QCFType<CFArrayRef> types; + if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr) + continue; + + const int type_count = CFArrayGetCount(types); + for(int i = 0; i < type_count; ++i) { + const QString flavor = QCFString::toQString((CFStringRef)CFArrayGetValueAtIndex(types, i)); +#ifdef DEBUG_PASTEBOARD + qDebug(" -%s [0x%x]", qPrintable(QString(flavor)), mime_type); +#endif + QString mimeType = QMacPasteboardMime::flavorToMime(mime_type, flavor); +#ifdef DEBUG_PASTEBOARD + if(!mimeType.isEmpty()) + qDebug(" - %s", qPrintable(mimeType)); +#endif + if(mimeType == format) + return true; + } + } + return false; +} + +QVariant +QMacPasteboard::retrieveData(const QString &format, QVariant::Type) const +{ + if (!paste) + return QVariant(); + + sync(); + + ItemCount cnt = 0; + if(PasteboardGetItemCount(paste, &cnt) || !cnt) + return QByteArray(); + +#ifdef DEBUG_PASTEBOARD + qDebug("Pasteboard: retrieveData [%s]", qPrintable(format)); +#endif + const QList<QMacPasteboardMime *> mimes = QMacPasteboardMime::all(mime_type); + for(int mime = 0; mime < mimes.size(); ++mime) { + QMacPasteboardMime *c = mimes.at(mime); + QString c_flavor = c->flavorFor(format); + if(!c_flavor.isEmpty()) { + // Handle text/plain a little differently. Try handling Unicode first. + bool checkForUtf16 = (c_flavor == QLatin1String("com.apple.traditional-mac-plain-text") + || c_flavor == QLatin1String("public.utf8-plain-text")); + if (checkForUtf16 || c_flavor == QLatin1String("public.utf16-plain-text")) { + // Try to get the NSStringPboardType from NSPasteboard, newlines are mapped + // correctly (as '\n') in this data. The 'public.utf16-plain-text' type + // usually maps newlines to '\r' instead. + QString str = qt_mac_get_pasteboardString(paste); + if (!str.isEmpty()) + return str; + } + if (checkForUtf16 && hasFlavor(QLatin1String("public.utf16-plain-text"))) + c_flavor = QLatin1String("public.utf16-plain-text"); + + QVariant ret; + QList<QByteArray> retList; + for(uint index = 1; index <= cnt; ++index) { + PasteboardItemID id; + if(PasteboardGetItemIdentifier(paste, index, &id) != noErr) + continue; + + QCFType<CFArrayRef> types; + if(PasteboardCopyItemFlavors(paste, id, &types ) != noErr) + continue; + + const int type_count = CFArrayGetCount(types); + for(int i = 0; i < type_count; ++i) { + CFStringRef flavor = static_cast<CFStringRef>(CFArrayGetValueAtIndex(types, i)); + if(c_flavor == QCFString::toQString(flavor)) { + QCFType<CFDataRef> macBuffer; + if(PasteboardCopyItemFlavorData(paste, id, flavor, &macBuffer) == noErr) { + QByteArray buffer((const char *)CFDataGetBytePtr(macBuffer), CFDataGetLength(macBuffer)); + if(!buffer.isEmpty()) { +#ifdef DEBUG_PASTEBOARD + qDebug(" - %s [%s] (%s)", qPrintable(format), qPrintable(QCFString::toQString(flavor)), qPrintable(c->convertorName())); +#endif + buffer.detach(); //detach since we release the macBuffer + retList.append(buffer); + break; //skip to next element + } + } + } else { +#ifdef DEBUG_PASTEBOARD + qDebug(" - NoMatch %s [%s] (%s)", qPrintable(c_flavor), qPrintable(QCFString::toQString(flavor)), qPrintable(c->convertorName())); +#endif + } + } + } + + if (!retList.isEmpty()) { + ret = c->convertToMime(format, retList, c_flavor); + return ret; + } + } + } + return QVariant(); +} + +void QMacPasteboard::clear_helper() +{ + if (paste) + PasteboardClear(paste); + promises.clear(); +} + +void +QMacPasteboard::clear() +{ +#ifdef DEBUG_PASTEBOARD + qDebug("PasteBoard: clear!"); +#endif + clear_helper(); +} + +bool +QMacPasteboard::sync() const +{ + if (!paste) + return false; + const bool fromGlobal = PasteboardSynchronize(paste) & kPasteboardModified; + + if (fromGlobal) + const_cast<QMacPasteboard *>(this)->setMimeData(0); + +#ifdef DEBUG_PASTEBOARD + if(fromGlobal) + qDebug("Pasteboard: Synchronize!"); +#endif + return fromGlobal; +} + + + + +QT_END_NAMESPACE |