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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 634 insertions, 0 deletions

diff --git a/src/gui/kernel/qclipboard_mac.cpp b/src/gui/kernel/qclipboard_mac.cpp
new file mode 100644
index 0000000000..4a8bc56e41
--- /dev/null
+++ b/src/gui/kernel/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