Cocoa: Implement Drag-and-Drop.

Implement drag and drop support for drags originating
from outside Qt. Port mime and pasteboard code from
Qt 4. Use QSimpleDrag from from platform support to
implement internal Qt drags.

Change-Id: I5b664a95ebb00f48de2bd21c24dfb579af16123e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

14 files changed, 2094 insertions, 39 deletions

diff --git a/src/plugins/platforms/cocoa/cocoa.pro b/src/plugins/platforms/cocoa/cocoa.pro
index ce87de2574..b953210720 100644
--- a/src/plugins/platforms/cocoa/cocoa.pro
+++ b/src/plugins/platforms/cocoa/cocoa.pro
@@ -27,6 +27,9 @@ OBJECTIVE_SOURCES += main.mm \
     qcocoafiledialoghelper.mm \
     qcocoafontdialoghelper.mm \
     qcocoacursor.mm \
+    qcocoadrag.mm \
+    qmacclipboard.mm \
+    qmacmime.mm \
     qcocoasystemsettings.mm \
 
 HEADERS += qcocoaintegration.h \
@@ -52,6 +55,9 @@ HEADERS += qcocoaintegration.h \
     qcocoafiledialoghelper.h \
     qcocoafontdialoghelper.h \
     qcocoacursor.h \
+    qcocoadrag.h \
+    qmacclipboard.h \
+    qmacmime.h \
     qcocoasystemsettings.h \
 
 FORMS += $$PWD/../../../widgets/dialogs/qfiledialog.ui
diff --git a/src/plugins/platforms/cocoa/qcocoadrag.h b/src/plugins/platforms/cocoa/qcocoadrag.h
new file mode 100644
index 0000000000..17df54f748
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qcocoadrag.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCOCOADRAG_H
+#define QCOCOADRAG_H
+
+#include <Cocoa/Cocoa.h>
+#include <QtGui>
+#include <qplatformdrag_qpa.h>
+#include <QtPlatformSupport/private/qsimpledrag_p.h>
+
+#include <QtGui/private/qdnd_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QCocoaDrag : public QSimpleDrag
+{
+public:
+private:
+};
+
+class QCocoaDropData : public QInternalMimeData
+{
+public:
+    QCocoaDropData(NSPasteboard *pasteboard);
+    ~QCocoaDropData();
+protected:
+    bool hasFormat_sys(const QString &mimeType) const;
+    QStringList formats_sys() const;
+    QVariant retrieveData_sys(const QString &mimeType, QVariant::Type type) const;
+public:
+    CFStringRef dropPasteboard;
+};
+
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
new file mode 100644
index 0000000000..c596e3fdbb
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcocoadrag.h"
+#include "qmacmime.h"
+#include "qmacclipboard.h"
+
+QT_BEGIN_NAMESPACE
+
+QCocoaDropData::QCocoaDropData(NSPasteboard *pasteboard)
+{
+    dropPasteboard = reinterpret_cast<CFStringRef>(const_cast<const NSString *>([pasteboard name]));
+    CFRetain(dropPasteboard);
+}
+
+QCocoaDropData::~QCocoaDropData()
+{
+    CFRelease(dropPasteboard);
+}
+
+QStringList QCocoaDropData::formats_sys() const
+{
+    QStringList formats;
+    PasteboardRef board;
+    if (PasteboardCreate(dropPasteboard, &board) != noErr) {
+        qDebug("DnD: Cannot get PasteBoard!");
+        return formats;
+    }
+    formats = QMacPasteboard(board, QMacPasteboardMime::MIME_DND).formats();
+    return formats;
+}
+
+QVariant QCocoaDropData::retrieveData_sys(const QString &mimeType, QVariant::Type type) const
+{
+    QVariant data;
+    PasteboardRef board;
+    if (PasteboardCreate(dropPasteboard, &board) != noErr) {
+        qDebug("DnD: Cannot get PasteBoard!");
+        return data;
+    }
+    data = QMacPasteboard(board, QMacPasteboardMime::MIME_DND).retrieveData(mimeType, type);
+    CFRelease(board);
+    return data;
+}
+
+bool QCocoaDropData::hasFormat_sys(const QString &mimeType) const
+{
+    bool has = false;
+    PasteboardRef board;
+    if (PasteboardCreate(dropPasteboard, &board) != noErr) {
+        qDebug("DnD: Cannot get PasteBoard!");
+        return has;
+    }
+    has = QMacPasteboard(board, QMacPasteboardMime::MIME_DND).hasFormat(mimeType);
+    CFRelease(board);
+    return has;
+}
+
+
+QT_END_NAMESPACE
+
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.h b/src/plugins/platforms/cocoa/qcocoahelpers.h
index 7b1247b739..3e3e8fa507 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.h
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.h
@@ -77,6 +77,11 @@ NSSize qt_mac_toNSSize(const QSize &qtSize);
 QChar qt_mac_qtKey2CocoaKey(Qt::Key key);
 Qt::Key qt_mac_cocoaKey2QtKey(QChar keyCode);
 
+NSDragOperation qt_mac_mapDropAction(Qt::DropAction action);
+NSDragOperation qt_mac_mapDropActions(Qt::DropActions actions);
+Qt::DropAction qt_mac_mapNSDragOperation(NSDragOperation nsActions);
+Qt::DropActions qt_mac_mapNSDragOperations(NSDragOperation nsActions);
+
 // Misc
 void qt_mac_transformProccessToForegroundApplication();
 QString qt_mac_removeMnemonics(const QString &original);
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.mm b/src/plugins/platforms/cocoa/qcocoahelpers.mm
index 29c505e1ab..ec4399b66c 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.mm
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.mm
@@ -270,6 +270,64 @@ Qt::Key qt_mac_cocoaKey2QtKey(QChar keyCode)
     return i->qtKey;
 }
 
+struct dndenum_mapper
+{
+    NSDragOperation mac_code;
+    Qt::DropAction qt_code;
+    bool Qt2Mac;
+};
+
+static dndenum_mapper dnd_enums[] = {
+    { NSDragOperationLink,  Qt::LinkAction, true },
+    { NSDragOperationMove,  Qt::MoveAction, true },
+    { NSDragOperationCopy,  Qt::CopyAction, true },
+    { NSDragOperationGeneric,  Qt::CopyAction, false },
+    { NSDragOperationEvery, Qt::ActionMask, false },
+    { NSDragOperationNone, Qt::IgnoreAction, false }
+};
+
+NSDragOperation qt_mac_mapDropAction(Qt::DropAction action)
+{
+    for (int i=0; dnd_enums[i].qt_code; i++) {
+        if (dnd_enums[i].Qt2Mac && (action & dnd_enums[i].qt_code)) {
+            return dnd_enums[i].mac_code;
+        }
+    }
+    return NSDragOperationNone;
+}
+
+NSDragOperation qt_mac_mapDropActions(Qt::DropActions actions)
+{
+    NSDragOperation nsActions = NSDragOperationNone;
+    for (int i=0; dnd_enums[i].qt_code; i++) {
+        if (dnd_enums[i].Qt2Mac && (actions & dnd_enums[i].qt_code))
+            nsActions |= dnd_enums[i].mac_code;
+    }
+    return nsActions;
+}
+
+Qt::DropAction qt_mac_mapNSDragOperation(NSDragOperation nsActions)
+{
+    Qt::DropAction action = Qt::IgnoreAction;
+    for (int i=0; dnd_enums[i].mac_code; i++) {
+        if (nsActions & dnd_enums[i].mac_code)
+            return dnd_enums[i].qt_code;
+    }
+    return action;
+}
+
+Qt::DropActions qt_mac_mapNSDragOperations(NSDragOperation nsActions)
+{
+    Qt::DropActions actions = Qt::IgnoreAction;
+    for (int i=0; dnd_enums[i].mac_code; i++) {
+        if (nsActions & dnd_enums[i].mac_code)
+            actions |= dnd_enums[i].qt_code;
+    }
+    return actions;
+}
+
+
+
 //
 // Misc
 //
diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.h b/src/plugins/platforms/cocoa/qcocoaintegration.h
index 5493b21c34..aa0c933fab 100644
--- a/src/plugins/platforms/cocoa/qcocoaintegration.h
+++ b/src/plugins/platforms/cocoa/qcocoaintegration.h
@@ -46,6 +46,7 @@
 
 #include "qcocoaautoreleasepool.h"
 #include "qcocoacursor.h"
+#include "qcocoadrag.h"
 
 #include <QtCore/QScopedPointer>
 #include <QtGui/QPlatformIntegration>
@@ -88,6 +89,7 @@ public:
 
     QPlatformNativeInterface *nativeInterface() const;
     QPlatformAccessibility *accessibility() const;
+    QPlatformDrag *drag() const;
 
     QPlatformTheme *platformTheme() const;
 private:
@@ -98,6 +100,7 @@ private:
     QScopedPointer<QPlatformAccessibility> mAccessibility;
     QScopedPointer<QPlatformTheme> mPlatformTheme;
     QList<QCocoaScreen *> mScreens;
+    QScopedPointer<QCocoaDrag> mCocoaDrag;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.mm b/src/plugins/platforms/cocoa/qcocoaintegration.mm
index 626a7fe0f9..7921cc6ae7 100644
--- a/src/plugins/platforms/cocoa/qcocoaintegration.mm
+++ b/src/plugins/platforms/cocoa/qcocoaintegration.mm
@@ -52,6 +52,7 @@
 #include "qmenu_mac.h"
 #include "qcocoafiledialoghelper.h"
 #include "qcocoatheme.h"
+#include "qmacmime.h"
 
 #include <QtGui/qplatformaccessibility_qpa.h>
 #include <QtCore/qcoreapplication.h>
@@ -91,7 +92,7 @@ QCocoaIntegration::QCocoaIntegration()
     , mEventDispatcher(new QCocoaEventDispatcher())
     , mAccessibility(new QPlatformAccessibility)
     , mPlatformTheme(new QCocoaTheme)
-
+    , mCocoaDrag(new QCocoaDrag)
 {
     QCocoaAutoReleasePool pool;
 
@@ -138,6 +139,7 @@ QCocoaIntegration::QCocoaIntegration()
         screenAdded(screen);
     }
 
+    QMacPasteboardMime::initialize();
 }
 
 QCocoaIntegration::~QCocoaIntegration()
@@ -198,6 +200,11 @@ QPlatformAccessibility *QCocoaIntegration::accessibility() const
     return mAccessibility.data();
 }
 
+QPlatformDrag *QCocoaIntegration::drag() const
+{
+    return mCocoaDrag.data();
+}
+
 QPlatformTheme *QCocoaIntegration::platformTheme() const
 {
     return mPlatformTheme.data();
diff --git a/src/plugins/platforms/cocoa/qmacclipboard.h b/src/plugins/platforms/cocoa/qmacclipboard.h
new file mode 100644
index 0000000000..9371aca459
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qmacclipboard.h
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMACCLIPBOARD_H
+#define QMACCLIPBOARD_H
+
+#include <QtGui>
+#include "qmacmime.h"
+
+#undef slots
+
+#import <Cocoa/Cocoa.h>
+
+class QMacPasteboard
+{
+    struct Promise {
+        Promise() : itemId(0), convertor(0) { }
+        Promise(int itemId, QMacPasteboardMime *c, QString m, QVariant d, int o=0) : itemId(itemId), offset(o), convertor(c), mime(m), data(d) { }
+        int itemId, offset;
+        QMacPasteboardMime *convertor;
+        QString mime;
+        QVariant data;
+    };
+    QList<Promise> promises;
+
+    PasteboardRef paste;
+    uchar mime_type;
+    mutable QPointer<QMimeData> mime;
+    mutable bool mac_mime_source;
+    static OSStatus promiseKeeper(PasteboardRef, PasteboardItemID, CFStringRef, void *);
+    void clear_helper();
+public:
+    QMacPasteboard(PasteboardRef p, uchar mime_type=0);
+    QMacPasteboard(uchar mime_type);
+    QMacPasteboard(CFStringRef name=0, uchar mime_type=0);
+    ~QMacPasteboard();
+
+    bool hasFlavor(QString flavor) const;
+    bool hasOSType(int c_flavor) const;
+
+    PasteboardRef pasteBoard() const;
+    QMimeData *mimeData() const;
+    void setMimeData(QMimeData *mime);
+
+    QStringList formats() const;
+    bool hasFormat(const QString &format) const;
+    QVariant retrieveData(const QString &format, QVariant::Type) const;
+
+    void clear();
+    bool sync() const;
+};
+
+QString qt_mac_get_pasteboardString(PasteboardRef paste);
+
+#endif
diff --git a/src/plugins/platforms/cocoa/qmacclipboard.mm b/src/plugins/platforms/cocoa/qmacclipboard.mm
new file mode 100644
index 0000000000..d5af6de69c
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qmacclipboard.mm
@@ -0,0 +1,653 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmacclipboard.h"
+#include "qclipboard.h"
+#include "qapplication.h"
+#include "qbitmap.h"
+#include "qdatetime.h"
+#include "qdebug.h"
+#include "qguiapplication.h"
+#include "qevent.h"
+#include "qurl.h"
+#include <stdlib.h>
+#include <string.h>
+#include "qcocoahelpers.h"
+#include "qmacmime.h"
+#include "qcocoaautoreleasepool.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();
+
+        // 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);
+            }
+        }
+        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;
+}
+
+
+QString qt_mac_get_pasteboardString(PasteboardRef paste)
+{
+    QCocoaAutoReleasePool pool;
+    NSPasteboard *pb = nil;
+    CFStringRef pbname;
+    if (PasteboardCopyName(paste, &pbname) == noErr) {
+        pb = [NSPasteboard pasteboardWithName:const_cast<NSString *>(reinterpret_cast<const NSString *>(pbname))];
+        CFRelease(pbname);
+    } else {
+        pb = [NSPasteboard generalPasteboard];
+    }
+    if (pb) {
+        NSString *text = [pb stringForType:NSStringPboardType];
+        if (text)
+            return QCFString::toQString(text);
+    }
+    return QString();
+}
+
+
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/qmacmime.h b/src/plugins/platforms/cocoa/qmacmime.h
new file mode 100644
index 0000000000..842caa5f2f
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qmacmime.h
@@ -0,0 +1,77 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMACMIME_H
+#define QMACMIME_H
+
+#include <QtCore>
+
+#include <CoreFoundation/CoreFoundation.h>
+
+class Q_GUI_EXPORT QMacPasteboardMime {
+    char type;
+public:
+    enum QMacPasteboardMimeType { MIME_DND=0x01,
+        MIME_CLIP=0x02,
+        MIME_QT_CONVERTOR=0x04,
+        MIME_QT3_CONVERTOR=0x08,
+        MIME_ALL=MIME_DND|MIME_CLIP
+    };
+    explicit QMacPasteboardMime(char);
+    virtual ~QMacPasteboardMime();
+
+    static void initialize();
+
+    static QList<QMacPasteboardMime*> all(uchar);
+    static QMacPasteboardMime *convertor(uchar, const QString &mime, QString flav);
+    static QString flavorToMime(uchar, QString flav);
+
+    virtual QString convertorName() = 0;
+
+    virtual bool canConvert(const QString &mime, QString flav) = 0;
+    virtual QString mimeFor(QString flav) = 0;
+    virtual QString flavorFor(const QString &mime) = 0;
+    virtual QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav) = 0;
+    virtual QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav) = 0;
+};
+
+#endif
+
diff --git a/src/plugins/platforms/cocoa/qmacmime.mm b/src/plugins/platforms/cocoa/qmacmime.mm
new file mode 100644
index 0000000000..db86deb91c
--- /dev/null
+++ b/src/plugins/platforms/cocoa/qmacmime.mm
@@ -0,0 +1,938 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmacmime.h"
+#include "qcocoahelpers.h"
+#include "qmacclipboard.h"
+
+#include "qdebug.h"
+#include "qpixmap.h"
+#include "qimagewriter.h"
+#include "qimagereader.h"
+#include "qdatastream.h"
+#include "qbuffer.h"
+#include "qdatetime.h"
+#include "qguiapplication.h"
+#include "qtextcodec.h"
+#include "qregexp.h"
+#include "qurl.h"
+#include "qmap.h"
+
+#include <Cocoa/Cocoa.h>
+
+QT_BEGIN_NAMESPACE
+
+extern CGImageRef qt_mac_createCGImageFromQImage(const QImage &img, const QImage **imagePtr = 0); // qpaintengine_mac.cpp
+
+typedef QList<QMacPasteboardMime*> MimeList;
+Q_GLOBAL_STATIC(MimeList, globalMimeList)
+
+static void cleanup_mimes()
+{
+    MimeList *mimes = globalMimeList();
+    while (!mimes->isEmpty())
+        delete mimes->takeFirst();
+}
+
+Q_GLOBAL_STATIC(QStringList, globalDraggedTypesList)
+
+/*!
+    \fn void qRegisterDraggedTypes(const QStringList &types)
+    \relates QMacPasteboardMime
+
+    Registers the given \a types as custom pasteboard types.
+
+    This function should be called to enable the Drag and Drop events
+    for custom pasteboard types on Cocoa implementations. This is required
+    in addition to a QMacPasteboardMime subclass implementation. By default
+    drag and drop is enabled for all standard pasteboard types.
+
+   \sa QMacPasteboardMime
+*/
+Q_WIDGETS_EXPORT void qRegisterDraggedTypes(const QStringList &types)
+{
+    (*globalDraggedTypesList()) += types;
+}
+
+const QStringList& qEnabledDraggedTypes()
+{
+    return (*globalDraggedTypesList());
+}
+
+
+/*****************************************************************************
+  QDnD debug facilities
+ *****************************************************************************/
+//#define DEBUG_MIME_MAPS
+
+//functions
+extern QString qt_mac_from_pascal_string(const Str255);  //qglobal.cpp
+extern void qt_mac_from_pascal_string(QString, Str255, TextEncoding encoding=0, int len=-1);  //qglobal.cpp
+
+ScrapFlavorType qt_mac_mime_type = 'CUTE';
+CFStringRef qt_mac_mime_typeUTI = CFSTR("com.pasteboard.trolltech.marker");
+
+/*!
+  \class QMacPasteboardMime
+  \brief The QMacPasteboardMime class converts between a MIME type and a
+  \l{http://developer.apple.com/macosx/uniformtypeidentifiers.html}{Uniform
+  Type Identifier (UTI)} format.
+  \since 4.2
+
+  \ingroup draganddrop
+  \inmodule QtWidgets
+
+  Qt's drag and drop and clipboard facilities use the MIME
+  standard. On X11, this maps trivially to the Xdnd protocol. On
+  Mac, although some applications use MIME to describe clipboard
+  contents, it is more common to use Apple's UTI format.
+
+  QMacPasteboardMime's role is to bridge the gap between MIME and UTI;
+  By subclasses this class, one can extend Qt's drag and drop
+  and clipboard handling to convert to and from unsupported, or proprietary, UTI formats.
+
+  A subclass of QMacPasteboardMime will automatically be registered, and active, upon instantiation.
+
+  Qt has predefined support for the following UTIs:
+  \list
+    \i public.utf8-plain-text - converts to "text/plain"
+    \i public.utf16-plain-text - converts to "text/plain"
+    \i public.html - converts to "text/html"
+    \i public.url - converts to "text/uri-list"
+    \i public.file-url - converts to "text/uri-list"
+    \i public.tiff - converts to "application/x-qt-image"
+    \i public.vcard - converts to "text/plain"
+    \i com.apple.traditional-mac-plain-text - converts to "text/plain"
+    \i com.apple.pict - converts to "application/x-qt-image"
+  \endlist
+
+  When working with MIME data, Qt will interate through all instances of QMacPasteboardMime to
+  find an instance that can convert to, or from, a specific MIME type. It will do this by calling
+  canConvert() on each instance, starting with (and choosing) the last created instance first.
+  The actual conversions will be done by using convertToMime() and convertFromMime().
+
+  \note The API uses the term "flavor" in some cases. This is for backwards
+  compatibility reasons, and should now be understood as UTIs.
+*/
+
+/*! \enum QMacPasteboardMime::QMacPasteboardMimeType
+    \internal
+*/
+
+/*!
+  Constructs a new conversion object of type \a t, adding it to the
+  globally accessed list of available convertors.
+*/
+QMacPasteboardMime::QMacPasteboardMime(char t) : type(t)
+{
+    globalMimeList()->append(this);
+}
+
+/*!
+  Destroys a conversion object, removing it from the global
+  list of available convertors.
+*/
+QMacPasteboardMime::~QMacPasteboardMime()
+{
+    if (!QGuiApplication::closingDown())
+        globalMimeList()->removeAll(this);
+}
+
+class QMacPasteboardMimeAny : public QMacPasteboardMime {
+private:
+
+public:
+    QMacPasteboardMimeAny() : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) {
+    }
+    ~QMacPasteboardMimeAny() {
+    }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeAny::convertorName()
+{
+    return QLatin1String("Any-Mime");
+}
+
+QString QMacPasteboardMimeAny::flavorFor(const QString &mime)
+{
+    // do not handle the mime type name in the drag pasteboard
+    if (mime == QLatin1String("application/x-qt-mime-type-name"))
+        return QString();
+    QString ret = QLatin1String("com.trolltech.anymime.") + mime;
+    return ret.replace(QLatin1Char('/'), QLatin1String("--"));
+}
+
+QString QMacPasteboardMimeAny::mimeFor(QString flav)
+{
+    const QString any_prefix = QLatin1String("com.trolltech.anymime.");
+    if (flav.size() > any_prefix.length() && flav.startsWith(any_prefix))
+        return flav.mid(any_prefix.length()).replace(QLatin1String("--"), QLatin1String("/"));
+    return QString();
+}
+
+bool QMacPasteboardMimeAny::canConvert(const QString &mime, QString flav)
+{
+    return mimeFor(flav) == mime;
+}
+
+QVariant QMacPasteboardMimeAny::convertToMime(const QString &mime, QList<QByteArray> data, QString)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeAny: Cannot handle multiple member data");
+    QVariant ret;
+    if (mime == QLatin1String("text/plain"))
+        ret = QString::fromUtf8(data.first());
+    else
+        ret = data.first();
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeAny::convertFromMime(const QString &mime, QVariant data, QString)
+{
+    QList<QByteArray> ret;
+    if (mime == QLatin1String("text/plain"))
+        ret.append(data.toString().toUtf8());
+    else
+        ret.append(data.toByteArray());
+    return ret;
+}
+
+class QMacPasteboardMimeTypeName : public QMacPasteboardMime {
+private:
+
+public:
+    QMacPasteboardMimeTypeName() : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) {
+    }
+    ~QMacPasteboardMimeTypeName() {
+    }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeTypeName::convertorName()
+{
+    return QLatin1String("Qt-Mime-Type");
+}
+
+QString QMacPasteboardMimeTypeName::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("application/x-qt-mime-type-name"))
+        return QLatin1String("com.trolltech.qt.MimeTypeName");
+    return QString();
+}
+
+QString QMacPasteboardMimeTypeName::mimeFor(QString)
+{
+    return QString();
+}
+
+bool QMacPasteboardMimeTypeName::canConvert(const QString &, QString)
+{
+    return false;
+}
+
+QVariant QMacPasteboardMimeTypeName::convertToMime(const QString &, QList<QByteArray>, QString)
+{
+    QVariant ret;
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeTypeName::convertFromMime(const QString &, QVariant, QString)
+{
+    QList<QByteArray> ret;
+    ret.append(QString("x-qt-mime-type-name").toUtf8());
+    return ret;
+}
+
+class QMacPasteboardMimePlainText : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimePlainText() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimePlainText::convertorName()
+{
+    return QLatin1String("PlainText");
+}
+
+QString QMacPasteboardMimePlainText::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/plain"))
+        return QLatin1String("com.apple.traditional-mac-plain-text");
+    return QString();
+}
+
+QString QMacPasteboardMimePlainText::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("com.apple.traditional-mac-plain-text"))
+        return QLatin1String("text/plain");
+    return QString();
+}
+
+bool QMacPasteboardMimePlainText::canConvert(const QString &mime, QString flav)
+{
+    return flavorFor(mime) == flav;
+}
+
+QVariant QMacPasteboardMimePlainText::convertToMime(const QString &mimetype, QList<QByteArray> data, QString flavor)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimePlainText: Cannot handle multiple member data");
+    const QByteArray &firstData = data.first();
+    QVariant ret;
+    if (flavor == QCFString(QLatin1String("com.apple.traditional-mac-plain-text"))) {
+        QCFString str(CFStringCreateWithBytes(kCFAllocatorDefault,
+                                             reinterpret_cast<const UInt8 *>(firstData.constData()),
+                                             firstData.size(), CFStringGetSystemEncoding(), false));
+        ret = QString(str);
+    } else {
+        qWarning("QMime::convertToMime: unhandled mimetype: %s", qPrintable(mimetype));
+    }
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimePlainText::convertFromMime(const QString &, QVariant data, QString flavor)
+{
+    QList<QByteArray> ret;
+    QString string = data.toString();
+    if (flavor == QCFString(QLatin1String("com.apple.traditional-mac-plain-text")))
+        ret.append(string.toLatin1());
+    return ret;
+}
+
+class QMacPasteboardMimeUnicodeText : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeUnicodeText() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeUnicodeText::convertorName()
+{
+    return QLatin1String("UnicodeText");
+}
+
+QString QMacPasteboardMimeUnicodeText::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/plain"))
+        return QLatin1String("public.utf16-plain-text");
+    int i = mime.indexOf(QLatin1String("charset="));
+    if (i >= 0) {
+        QString cs(mime.mid(i+8).toLower());
+        i = cs.indexOf(QLatin1Char(';'));
+        if (i>=0)
+            cs = cs.left(i);
+        if (cs == QLatin1String("system"))
+            return QLatin1String("public.utf8-plain-text");
+        else if (cs == QLatin1String("iso-10646-ucs-2")
+                 || cs == QLatin1String("utf16"))
+            return QLatin1String("public.utf16-plain-text");
+    }
+    return QString();
+}
+
+QString QMacPasteboardMimeUnicodeText::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.utf16-plain-text") || flav == QLatin1String("public.utf8-plain-text"))
+        return QLatin1String("text/plain");
+    return QString();
+}
+
+bool QMacPasteboardMimeUnicodeText::canConvert(const QString &mime, QString flav)
+{
+    return flavorFor(mime) == flav;
+}
+
+QVariant QMacPasteboardMimeUnicodeText::convertToMime(const QString &mimetype, QList<QByteArray> data, QString flavor)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeUnicodeText: Cannot handle multiple member data");
+    const QByteArray &firstData = data.first();
+    // I can only handle two types (system and unicode) so deal with them that way
+    QVariant ret;
+    if (flavor == QLatin1String("public.utf8-plain-text")) {
+        QCFString str(CFStringCreateWithBytes(kCFAllocatorDefault,
+                                             reinterpret_cast<const UInt8 *>(firstData.constData()),
+                                             firstData.size(), CFStringGetSystemEncoding(), false));
+        ret = QString(str);
+    } else if (flavor == QLatin1String("public.utf16-plain-text")) {
+        ret = QString(reinterpret_cast<const QChar *>(firstData.constData()),
+                      firstData.size() / sizeof(QChar));
+    } else {
+        qWarning("QMime::convertToMime: unhandled mimetype: %s", qPrintable(mimetype));
+    }
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeUnicodeText::convertFromMime(const QString &, QVariant data, QString flavor)
+{
+    QList<QByteArray> ret;
+    QString string = data.toString();
+    if (flavor == QLatin1String("public.utf8-plain-text"))
+        ret.append(string.toUtf8());
+    else if (flavor == QLatin1String("public.utf16-plain-text"))
+        ret.append(QByteArray((char*)string.utf16(), string.length()*2));
+    return ret;
+}
+
+class QMacPasteboardMimeHTMLText : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeHTMLText() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeHTMLText::convertorName()
+{
+    return QLatin1String("HTML");
+}
+
+QString QMacPasteboardMimeHTMLText::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/html"))
+        return QLatin1String("public.html");
+    return QString();
+}
+
+QString QMacPasteboardMimeHTMLText::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.html"))
+        return QLatin1String("text/html");
+    return QString();
+}
+
+bool QMacPasteboardMimeHTMLText::canConvert(const QString &mime, QString flav)
+{
+    return flavorFor(mime) == flav;
+}
+
+QVariant QMacPasteboardMimeHTMLText::convertToMime(const QString &mimeType, QList<QByteArray> data, QString flavor)
+{
+    if (!canConvert(mimeType, flavor))
+        return QVariant();
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeHTMLText: Cannot handle multiple member data");
+    return data.first();
+}
+
+QList<QByteArray> QMacPasteboardMimeHTMLText::convertFromMime(const QString &mime, QVariant data, QString flavor)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flavor))
+        return ret;
+    ret.append(data.toByteArray());
+    return ret;
+}
+
+class QMacPasteboardMimeTiff : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeTiff() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeTiff::convertorName()
+{
+    return QLatin1String("Tiff");
+}
+
+QString QMacPasteboardMimeTiff::flavorFor(const QString &mime)
+{
+    if (mime.startsWith(QLatin1String("application/x-qt-image")))
+        return QLatin1String("public.tiff");
+    return QString();
+}
+
+QString QMacPasteboardMimeTiff::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.tiff"))
+        return QLatin1String("application/x-qt-image");
+    return QString();
+}
+
+bool QMacPasteboardMimeTiff::canConvert(const QString &mime, QString flav)
+{
+    return flav == QLatin1String("public.tiff") && mime == QLatin1String("application/x-qt-image");
+}
+
+QVariant QMacPasteboardMimeTiff::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+{
+    if (data.count() > 1)
+        qWarning("QMacPasteboardMimeTiff: Cannot handle multiple member data");
+    QVariant ret;
+    if (!canConvert(mime, flav))
+        return ret;
+    const QByteArray &a = data.first();
+    QCFType<CGImageRef> image;
+    QCFType<CFDataRef> tiffData = CFDataCreateWithBytesNoCopy(0,
+                                                reinterpret_cast<const UInt8 *>(a.constData()),
+                                                a.size(), kCFAllocatorNull);
+    QCFType<CGImageSourceRef> imageSource = CGImageSourceCreateWithData(tiffData, 0);
+    image = CGImageSourceCreateImageAtIndex(imageSource, 0, 0);
+
+    // ### TODO (msorvig) QPixmap conversion
+    //if (image != 0)
+    //    ret = QVariant(QPixmap::fromMacCGImageRef(image).toImage());
+    return ret;
+}
+
+QList<QByteArray> QMacPasteboardMimeTiff::convertFromMime(const QString &mime, QVariant variant, QString flav)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flav))
+        return ret;
+
+    QImage img = qvariant_cast<QImage>(variant);
+    QCFType<CGImageRef> cgimage = qt_mac_image_to_cgimage(img);
+
+    QCFType<CFMutableDataRef> data = CFDataCreateMutable(0, 0);
+    QCFType<CGImageDestinationRef> imageDestination = CGImageDestinationCreateWithData(data, kUTTypeTIFF, 1, 0);
+    if (imageDestination != 0) {
+        CFTypeRef keys[2];
+        QCFType<CFTypeRef> values[2];
+        QCFType<CFDictionaryRef> options;
+        keys[0] = kCGImagePropertyPixelWidth;
+        keys[1] = kCGImagePropertyPixelHeight;
+        int width = img.width();
+        int height = img.height();
+        values[0] = CFNumberCreate(0, kCFNumberIntType, &width);
+        values[1] = CFNumberCreate(0, kCFNumberIntType, &height);
+        options = CFDictionaryCreate(0, reinterpret_cast<const void **>(keys),
+                                     reinterpret_cast<const void **>(values), 2,
+                                     &kCFTypeDictionaryKeyCallBacks,
+                                     &kCFTypeDictionaryValueCallBacks);
+        CGImageDestinationAddImage(imageDestination, cgimage, options);
+        CGImageDestinationFinalize(imageDestination);
+    }
+    QByteArray ar(CFDataGetLength(data), 0);
+    CFDataGetBytes(data,
+            CFRangeMake(0, ar.size()),
+            reinterpret_cast<UInt8 *>(ar.data()));
+    ret.append(ar);
+    return ret;
+}
+
+
+class QMacPasteboardMimeFileUri : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeFileUri() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeFileUri::convertorName()
+{
+    return QLatin1String("FileURL");
+}
+
+QString QMacPasteboardMimeFileUri::flavorFor(const QString &mime)
+{
+    if (mime == QLatin1String("text/uri-list"))
+        return QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0));
+    return QString();
+}
+
+QString QMacPasteboardMimeFileUri::mimeFor(QString flav)
+{
+    if (flav == QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0)))
+        return QLatin1String("text/uri-list");
+    return QString();
+}
+
+bool QMacPasteboardMimeFileUri::canConvert(const QString &mime, QString flav)
+{
+    return mime == QLatin1String("text/uri-list")
+            && flav == QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0));
+}
+
+QVariant QMacPasteboardMimeFileUri::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+{
+    if (!canConvert(mime, flav))
+        return QVariant();
+    QList<QVariant> ret;
+    for (int i = 0; i < data.size(); ++i) {
+        QUrl url = QUrl::fromEncoded(data.at(i));
+        if (url.host().toLower() == QLatin1String("localhost"))
+            url.setHost(QString());
+        url.setPath(url.path().normalized(QString::NormalizationForm_C));
+        ret.append(url);
+    }
+    return QVariant(ret);
+}
+
+QList<QByteArray> QMacPasteboardMimeFileUri::convertFromMime(const QString &mime, QVariant data, QString flav)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flav))
+        return ret;
+    QList<QVariant> urls = data.toList();
+    for (int i = 0; i < urls.size(); ++i) {
+        QUrl url = urls.at(i).toUrl();
+        if (url.scheme().isEmpty())
+            url.setScheme(QLatin1String("file"));
+        if (url.scheme().toLower() == QLatin1String("file")) {
+            if (url.host().isEmpty())
+                url.setHost(QLatin1String("localhost"));
+            url.setPath(url.path().normalized(QString::NormalizationForm_D));
+        }
+        ret.append(url.toEncoded());
+    }
+    return ret;
+}
+
+class QMacPasteboardMimeUrl : public QMacPasteboardMime {
+public:
+    QMacPasteboardMimeUrl() : QMacPasteboardMime(MIME_ALL) { }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeUrl::convertorName()
+{
+    return QLatin1String("URL");
+}
+
+QString QMacPasteboardMimeUrl::flavorFor(const QString &mime)
+{
+    if (mime.startsWith(QLatin1String("text/uri-list")))
+        return QLatin1String("public.url");
+    return QString();
+}
+
+QString QMacPasteboardMimeUrl::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.url"))
+        return QLatin1String("text/uri-list");
+    return QString();
+}
+
+bool QMacPasteboardMimeUrl::canConvert(const QString &mime, QString flav)
+{
+    return flav == QLatin1String("public.url")
+            && mime == QLatin1String("text/uri-list");
+}
+
+QVariant QMacPasteboardMimeUrl::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+{
+    if (!canConvert(mime, flav))
+        return QVariant();
+
+    QList<QVariant> ret;
+    for (int i=0; i<data.size(); ++i) {
+        QUrl url = QUrl::fromEncoded(data.at(i));
+        if (url.host().toLower() == QLatin1String("localhost"))
+            url.setHost(QString());
+        url.setPath(url.path().normalized(QString::NormalizationForm_C));
+        ret.append(url);
+    }
+    return QVariant(ret);
+}
+
+QList<QByteArray> QMacPasteboardMimeUrl::convertFromMime(const QString &mime, QVariant data, QString flav)
+{
+    QList<QByteArray> ret;
+    if (!canConvert(mime, flav))
+        return ret;
+
+    QList<QVariant> urls = data.toList();
+    for (int i=0; i<urls.size(); ++i) {
+        QUrl url = urls.at(i).toUrl();
+        if (url.scheme().isEmpty())
+            url.setScheme(QLatin1String("file"));
+        if (url.scheme().toLower() == QLatin1String("file")) {
+            if (url.host().isEmpty())
+                url.setHost(QLatin1String("localhost"));
+            url.setPath(url.path().normalized(QString::NormalizationForm_D));
+        }
+        ret.append(url.toEncoded());
+    }
+    return ret;
+}
+
+class QMacPasteboardMimeVCard : public QMacPasteboardMime
+{
+public:
+    QMacPasteboardMimeVCard() : QMacPasteboardMime(MIME_ALL){ }
+    QString convertorName();
+
+    QString flavorFor(const QString &mime);
+    QString mimeFor(QString flav);
+    bool canConvert(const QString &mime, QString flav);
+    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
+    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+};
+
+QString QMacPasteboardMimeVCard::convertorName()
+{
+    return QString("VCard");
+}
+
+bool QMacPasteboardMimeVCard::canConvert(const QString &mime, QString flav)
+{
+    return mimeFor(flav) == mime;
+}
+
+QString QMacPasteboardMimeVCard::flavorFor(const QString &mime)
+{
+    if (mime.startsWith(QLatin1String("text/plain")))
+        return QLatin1String("public.vcard");
+    return QString();
+}
+
+QString QMacPasteboardMimeVCard::mimeFor(QString flav)
+{
+    if (flav == QLatin1String("public.vcard"))
+        return QLatin1String("text/plain");
+    return QString();
+}
+
+QVariant QMacPasteboardMimeVCard::convertToMime(const QString &mime, QList<QByteArray> data, QString)
+{
+    QByteArray cards;
+    if (mime == QLatin1String("text/plain")) {
+        for (int i=0; i<data.size(); ++i)
+            cards += data[i];
+    }
+    return QVariant(cards);
+}
+
+QList<QByteArray> QMacPasteboardMimeVCard::convertFromMime(const QString &mime, QVariant data, QString)
+{
+    QList<QByteArray> ret;
+    if (mime == QLatin1String("text/plain"))
+        ret.append(data.toString().toUtf8());
+    return ret;
+}
+
+
+/*!
+  \internal
+
+  This is an internal function.
+*/
+void QMacPasteboardMime::initialize()
+{
+    if (globalMimeList()->isEmpty()) {
+        qAddPostRoutine(cleanup_mimes);
+
+        //standard types that we wrap
+        new QMacPasteboardMimeTiff;
+        new QMacPasteboardMimeUnicodeText;
+        new QMacPasteboardMimePlainText;
+        new QMacPasteboardMimeHTMLText;
+        new QMacPasteboardMimeFileUri;
+        new QMacPasteboardMimeUrl;
+        new QMacPasteboardMimeTypeName;
+        new QMacPasteboardMimeVCard;
+        //make sure our "non-standard" types are always last! --Sam
+        new QMacPasteboardMimeAny;
+    }
+}
+
+/*!
+  Returns the most-recently created QMacPasteboardMime of type \a t that can convert
+  between the \a mime and \a flav formats.  Returns 0 if no such convertor
+  exists.
+*/
+QMacPasteboardMime*
+QMacPasteboardMime::convertor(uchar t, const QString &mime, QString flav)
+{
+    MimeList *mimes = globalMimeList();
+    for (MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
+#ifdef DEBUG_MIME_MAPS
+        qDebug("QMacPasteboardMime::convertor: seeing if %s (%d) can convert %s to %d[%c%c%c%c] [%d]",
+               (*it)->convertorName().toLatin1().constData(),
+               (*it)->type & t, mime.toLatin1().constData(),
+               flav, (flav >> 24) & 0xFF, (flav >> 16) & 0xFF, (flav >> 8) & 0xFF, (flav) & 0xFF,
+               (*it)->canConvert(mime,flav));
+        for (int i = 0; i < (*it)->countFlavors(); ++i) {
+            int f = (*it)->flavor(i);
+            qDebug("  %d) %d[%c%c%c%c] [%s]", i, f,
+                   (f >> 24) & 0xFF, (f >> 16) & 0xFF, (f >> 8) & 0xFF, (f) & 0xFF,
+                   (*it)->convertorName().toLatin1().constData());
+        }
+#endif
+        if (((*it)->type & t) && (*it)->canConvert(mime, flav))
+            return (*it);
+    }
+    return 0;
+}
+/*!
+  Returns a MIME type of type \a t for \a flav, or 0 if none exists.
+*/
+QString QMacPasteboardMime::flavorToMime(uchar t, QString flav)
+{
+    MimeList *mimes = globalMimeList();
+    for (MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
+#ifdef DEBUG_MIME_MAPS
+        qDebug("QMacMIme::flavorToMime: attempting %s (%d) for flavor %d[%c%c%c%c] [%s]",
+               (*it)->convertorName().toLatin1().constData(),
+               (*it)->type & t, flav, (flav >> 24) & 0xFF, (flav >> 16) & 0xFF, (flav >> 8) & 0xFF, (flav) & 0xFF,
+               (*it)->mimeFor(flav).toLatin1().constData());
+
+#endif
+        if ((*it)->type & t) {
+            QString mimeType = (*it)->mimeFor(flav);
+            if (!mimeType.isNull())
+                return mimeType;
+        }
+    }
+    return QString();
+}
+
+/*!
+  Returns a list of all currently defined QMacPasteboardMime objects of type \a t.
+*/
+QList<QMacPasteboardMime*> QMacPasteboardMime::all(uchar t)
+{
+    MimeList ret;
+    MimeList *mimes = globalMimeList();
+    for (MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
+        if ((*it)->type & t)
+            ret.append((*it));
+    }
+    return ret;
+}
+
+
+/*!
+  \fn QString QMacPasteboardMime::convertorName()
+
+  Returns a name for the convertor.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn bool QMacPasteboardMime::canConvert(const QString &mime, QString flav)
+
+  Returns true if the convertor can convert (both ways) between
+  \a mime and \a flav; otherwise returns false.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn QString QMacPasteboardMime::mimeFor(QString flav)
+
+  Returns the MIME UTI used for Mac flavor \a flav, or 0 if this
+  convertor does not support \a flav.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn QString QMacPasteboardMime::flavorFor(const QString &mime)
+
+  Returns the Mac UTI used for MIME type \a mime, or 0 if this
+  convertor does not support \a mime.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+    \fn QVariant QMacPasteboardMime::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
+
+    Returns \a data converted from Mac UTI \a flav to MIME type \a
+    mime.
+
+    Note that Mac flavors must all be self-terminating. The input \a
+    data may contain trailing data.
+
+    All subclasses must reimplement this pure virtual function.
+*/
+
+/*!
+  \fn QList<QByteArray> QMacPasteboardMime::convertFromMime(const QString &mime, QVariant data, QString flav)
+
+  Returns \a data converted from MIME type \a mime
+    to Mac UTI \a flav.
+
+  Note that Mac flavors must all be self-terminating.  The return
+  value may contain trailing data.
+
+  All subclasses must reimplement this pure virtual function.
+*/
+
+QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/qnsview.h b/src/plugins/platforms/cocoa/qnsview.h
index c61ff2bd02..1a1a1cd3b9 100644
--- a/src/plugins/platforms/cocoa/qnsview.h
+++ b/src/plugins/platforms/cocoa/qnsview.h
@@ -57,6 +57,7 @@ QT_END_NAMESPACE
     QCocoaWindow *m_platformWindow;
     Qt::MouseButtons m_buttons;
     QAccessibleInterface *m_accessibleRoot;
+    QStringList *currentCustomDragTypes;
 }
 
 - (id)init;
@@ -91,6 +92,9 @@ QT_END_NAMESPACE
 - (void)keyDown:(NSEvent *)theEvent;
 - (void)keyUp:(NSEvent *)theEvent;
 
+- (void)registerDragTypes;
+- (NSDragOperation)handleDrag:(id <NSDraggingInfo>)sender;
+
 @end
 
 #endif //QNSVIEW_H
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index a43b3fe893..9ed3332ba5 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -46,7 +46,9 @@
 #include "qnsview.h"
 #include "qcocoawindow.h"
 #include "qcocoahelpers.h"
+#include "qcocoaautoreleasepool.h"
 #include "qmultitouch_mac_p.h"
+#include "qcocoadrag.h"
 
 #include <QtGui/QWindowSystemInterface>
 #include <QtCore/QDebug>
@@ -72,6 +74,7 @@ static QTouchDevice *touchDevice = 0;
         m_cgImage = 0;
         m_window = 0;
         m_buttons = Qt::NoButton;
+        currentCustomDragTypes = 0;
         if (!touchDevice) {
             touchDevice = new QTouchDevice;
             touchDevice->setType(QTouchDevice::TouchPad);
@@ -109,6 +112,7 @@ static QTouchDevice *touchDevice = 0;
     m_accessibleRoot = window->accessibleRoot();
 #endif
 
+    [self registerDragTypes];
     [self setPostsFrameChangedNotifications : YES];
     [[NSNotificationCenter defaultCenter] addObserver:self
                                           selector:@selector(updateGeometry)
@@ -471,4 +475,74 @@ static QTouchDevice *touchDevice = 0;
     [self handleKeyEvent : theEvent eventType :int(QEvent::KeyRelease)];
 }
 
+-(void)registerDragTypes
+{
+    QCocoaAutoReleasePool pool;
+    // ### Custom types disabled.
+    QStringList customTypes;  // = qEnabledDraggedTypes();
+    if (currentCustomDragTypes == 0 || *currentCustomDragTypes != customTypes) {
+        if (currentCustomDragTypes == 0)
+            currentCustomDragTypes = new QStringList();
+        *currentCustomDragTypes = customTypes;
+        const NSString* mimeTypeGeneric = @"com.trolltech.qt.MimeTypeName";
+        NSMutableArray *supportedTypes = [NSMutableArray arrayWithObjects:NSColorPboardType,
+                       NSFilenamesPboardType, NSStringPboardType,
+                       NSFilenamesPboardType, NSPostScriptPboardType, NSTIFFPboardType,
+                       NSRTFPboardType, NSTabularTextPboardType, NSFontPboardType,
+                       NSRulerPboardType, NSFileContentsPboardType, NSColorPboardType,
+                       NSRTFDPboardType, NSHTMLPboardType, NSPICTPboardType,
+                       NSURLPboardType, NSPDFPboardType, NSVCardPboardType,
+                       NSFilesPromisePboardType, NSInkTextPboardType,
+                       NSMultipleTextSelectionPboardType, mimeTypeGeneric, nil];
+        // Add custom types supported by the application.
+        for (int i = 0; i < customTypes.size(); i++) {
+           [supportedTypes addObject:QCFString::toNSString(customTypes[i])];
+        }
+        [self registerForDraggedTypes:supportedTypes];
+    }
+}
+
+- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
+{
+    return [self handleDrag : sender];
+}
+
+- (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
+{
+    return [self handleDrag : sender];
+}
+
+// Sends drag update to Qt, return the action
+- (NSDragOperation)handleDrag:(id <NSDraggingInfo>)sender
+{
+    NSPoint windowPoint = [self convertPoint: [sender draggingLocation] fromView: nil];
+    QPoint qt_windowPoint(windowPoint.x, windowPoint.y);
+    Qt::DropActions qtAllowed = qt_mac_mapNSDragOperations([sender draggingSourceOperationMask]);
+    QCocoaDropData mimeData([sender draggingPasteboard]);
+
+    QPlatformDragQtResponse response = QWindowSystemInterface::handleDrag(m_window, &mimeData, qt_windowPoint, qtAllowed);
+    return qt_mac_mapDropAction(response.acceptedAction());
+}
+
+- (void)draggingExited:(id <NSDraggingInfo>)sender
+{
+    NSPoint windowPoint = [self convertPoint: [sender draggingLocation] fromView: nil];
+    QPoint qt_windowPoint(windowPoint.x, windowPoint.y);
+
+    // Send 0 mime data to indicate drag exit
+    QWindowSystemInterface::handleDrag(m_window, 0 ,qt_windowPoint, Qt::IgnoreAction);
+}
+
+// called on drop, send the drop to Qt and return if it was accepted.
+- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
+{
+    NSPoint windowPoint = [self convertPoint: [sender draggingLocation] fromView: nil];
+    QPoint qt_windowPoint(windowPoint.x, windowPoint.y);
+    Qt::DropActions qtAllowed = qt_mac_mapNSDragOperations([sender draggingSourceOperationMask]);
+    QCocoaDropData mimeData([sender draggingPasteboard]);
+
+    QPlatformDropQtResponse response = QWindowSystemInterface::handleDrop(m_window, &mimeData, qt_windowPoint, qtAllowed);
+    return response.isAccepted();
+}
+
 @end
diff --git a/src/plugins/platforms/cocoa/qt_mac_p.h b/src/plugins/platforms/cocoa/qt_mac_p.h
index 8e94880c5a..b75e6e2bcb 100644
--- a/src/plugins/platforms/cocoa/qt_mac_p.h
+++ b/src/plugins/platforms/cocoa/qt_mac_p.h
@@ -196,44 +196,6 @@ public:
 class QMacPasteboardMime;
 class QMimeData;
 
-class QMacPasteboard
-{
-    struct Promise {
-        Promise() : itemId(0), convertor(0) { }
-        Promise(int itemId, QMacPasteboardMime *c, QString m, QVariant d, int o=0) : itemId(itemId), offset(o), convertor(c), mime(m), data(d) { }
-        int itemId, offset;
-        QMacPasteboardMime *convertor;
-        QString mime;
-        QVariant data;
-    };
-    QList<Promise> promises;
-
-    OSPasteboardRef paste;
-    uchar mime_type;
-    mutable QPointer<QMimeData> mime;
-    mutable bool mac_mime_source;
-    static OSStatus promiseKeeper(OSPasteboardRef, PasteboardItemID, CFStringRef, void *);
-    void clear_helper();
-public:
-    QMacPasteboard(OSPasteboardRef p, uchar mime_type=0);
-    QMacPasteboard(uchar mime_type);
-    QMacPasteboard(CFStringRef name=0, uchar mime_type=0);
-    ~QMacPasteboard();
-
-    bool hasFlavor(QString flavor) const;
-    bool hasOSType(int c_flavor) const;
-
-    OSPasteboardRef pasteBoard() const;
-    QMimeData *mimeData() const;
-    void setMimeData(QMimeData *mime);
-
-    QStringList formats() const;
-    bool hasFormat(const QString &format) const;
-    QVariant retrieveData(const QString &format, QVariant::Type) const;
-
-    void clear();
-    bool sync() const;
-};
 
 extern QPaintDevice *qt_mac_safe_pdev; //qapplication_mac.cpp