diff options
Diffstat (limited to 'src/gui/kernel/qdnd_x11.cpp')
| -rw-r--r-- | src/gui/kernel/qdnd_x11.cpp | 2072 |
1 files changed, 0 insertions, 2072 deletions
diff --git a/src/gui/kernel/qdnd_x11.cpp b/src/gui/kernel/qdnd_x11.cpp deleted file mode 100644 index 9ff1543e51..0000000000 --- a/src/gui/kernel/qdnd_x11.cpp +++ /dev/null @@ -1,2072 +0,0 @@ -/**************************************************************************** -** -** 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 "qplatformdefs.h" - -#include "qapplication.h" - -#ifndef QT_NO_DRAGANDDROP - -#include "qwidget.h" -#include "qpainter.h" -#include "qpixmap.h" -#include "qbitmap.h" -#include "qdesktopwidget.h" -#include "qevent.h" -#include "qiodevice.h" -#include "qpointer.h" -#include "qcursor.h" -#include "qelapsedtimer.h" -#include "qvariant.h" -#include "qvector.h" -#include "qurl.h" -#include "qdebug.h" -#include "qimagewriter.h" -#include "qbuffer.h" -#include "qtextcodec.h" - -#include "qdnd_p.h" -#include "qapplication_p.h" -#include "qt_x11_p.h" -#include "qx11info_x11.h" - -#include "qwidget_p.h" -#include "qcursor_p.h" - -QT_BEGIN_NAMESPACE - -// #define DND_DEBUG -#ifdef DND_DEBUG -#define DEBUG qDebug -#else -#define DEBUG if(0) qDebug -#endif - -#ifdef DND_DEBUG -#define DNDDEBUG qDebug() -#else -#define DNDDEBUG if(0) qDebug() -#endif - -static int findXdndDropTransactionByWindow(Window window) -{ - int at = -1; - for (int i = 0; i < X11->dndDropTransactions.count(); ++i) { - const QXdndDropTransaction &t = X11->dndDropTransactions.at(i); - if (t.target == window || t.proxy_target == window) { - at = i; - break; - } - } - return at; -} - -static int findXdndDropTransactionByTime(Time timestamp) -{ - int at = -1; - for (int i = 0; i < X11->dndDropTransactions.count(); ++i) { - const QXdndDropTransaction &t = X11->dndDropTransactions.at(i); - if (t.timestamp == timestamp) { - at = i; - break; - } - } - return at; -} - -// timer used to discard old XdndDrop transactions -static int transaction_expiry_timer = -1; -enum { XdndDropTransactionTimeout = 5000 }; // 5 seconds - -static void restartXdndDropExpiryTimer() -{ - if (transaction_expiry_timer != -1) - QDragManager::self()->killTimer(transaction_expiry_timer); - transaction_expiry_timer = QDragManager::self()->startTimer(XdndDropTransactionTimeout); -} - - -// find an ancestor with XdndAware on it -static Window findXdndAwareParent(Window window) -{ - Window target = 0; - forever { - // check if window has XdndAware - Atom type = 0; - int f; - unsigned long n, a; - unsigned char *data = 0; - if (XGetWindowProperty(X11->display, window, ATOM(XdndAware), 0, 0, False, - AnyPropertyType, &type, &f,&n,&a,&data) == Success) { - if (data) - XFree(data); - if (type) { - target = window; - break; - } - } - - // try window's parent - Window root; - Window parent; - Window *children; - uint unused; - if (!XQueryTree(X11->display, window, &root, &parent, &children, &unused)) - break; - if (children) - XFree(children); - if (window == root) - break; - window = parent; - } - return target; -} - - - - -// and all this stuff is copied -into- qapp_x11.cpp - -static void handle_xdnd_position(QWidget *, const XEvent *, bool); -static void handle_xdnd_status(QWidget * w, const XEvent * xe, bool /*passive*/); - -const int xdnd_version = 5; - -static Qt::DropAction xdndaction_to_qtaction(Atom atom) -{ - if (atom == ATOM(XdndActionCopy) || atom == 0) - return Qt::CopyAction; - if (atom == ATOM(XdndActionLink)) - return Qt::LinkAction; - if (atom == ATOM(XdndActionMove)) - return Qt::MoveAction; - return Qt::CopyAction; -} - -static int qtaction_to_xdndaction(Qt::DropAction a) -{ - switch (a) { - case Qt::CopyAction: - return ATOM(XdndActionCopy); - case Qt::LinkAction: - return ATOM(XdndActionLink); - case Qt::MoveAction: - case Qt::TargetMoveAction: - return ATOM(XdndActionMove); - case Qt::IgnoreAction: - return XNone; - default: - return ATOM(XdndActionCopy); - } -} - -// clean up the stuff used. -static void qt_xdnd_cleanup(); - -static void qt_xdnd_send_leave(); - -// real variables: -// xid of current drag source -static Atom qt_xdnd_dragsource_xid = 0; - -// the types in this drop. 100 is no good, but at least it's big. -const int qt_xdnd_max_type = 100; -static Atom qt_xdnd_types[qt_xdnd_max_type + 1]; - -// timer used when target wants "continuous" move messages (eg. scroll) -static int heartbeat = -1; -// rectangle in which the answer will be the same -static QRect qt_xdnd_source_sameanswer; -// top-level window we sent position to last. -static Window qt_xdnd_current_target; -// window to send events to (always valid if qt_xdnd_current_target) -static Window qt_xdnd_current_proxy_target; -static Time qt_xdnd_source_current_time; - -// widget we forwarded position to last, and local position -static QPointer<QWidget> qt_xdnd_current_widget; -static QPoint qt_xdnd_current_position; -// timestamp from the XdndPosition and XdndDrop -static Time qt_xdnd_target_current_time; -// screen number containing the pointer... -1 means default -static int qt_xdnd_current_screen = -1; -// state of dragging... true if dragging, false if not -bool qt_xdnd_dragging = false; - -static bool waiting_for_status = false; - -// used to preset each new QDragMoveEvent -static Qt::DropAction last_target_accepted_action = Qt::IgnoreAction; - -// Shift/Ctrl handling, and final drop status -static Qt::DropAction global_accepted_action = Qt::CopyAction; -static Qt::DropActions possible_actions = Qt::IgnoreAction; - -// for embedding only -static QWidget* current_embedding_widget = 0; -static XEvent last_enter_event; - -// cursors -static QCursor *noDropCursor = 0; -static QCursor *moveCursor = 0; -static QCursor *copyCursor = 0; -static QCursor *linkCursor = 0; - -static QPixmap *defaultPm = 0; - -static const int default_pm_hotx = -2; -static const int default_pm_hoty = -16; -static const char* const default_pm[] = { -"13 9 3 1", -". c None", -" c #000000", -"X c #FFFFFF", -"X X X X X X X", -" X X X X X X ", -"X ......... X", -" X.........X ", -"X ......... X", -" X.........X ", -"X ......... X", -" X X X X X X ", -"X X X X X X X" -}; - -class QShapedPixmapWidget : public QWidget -{ - Q_OBJECT -public: - QShapedPixmapWidget(QWidget* w) : - QWidget(w, - Qt::Tool | Qt::FramelessWindowHint - | Qt::X11BypassWindowManagerHint - | Qt::BypassGraphicsProxyWidget) - { - setAttribute(Qt::WA_X11NetWmWindowTypeDND); - } - - void setPixmap(const QPixmap &pm) - { - QBitmap mask = pm.mask(); - if (!mask.isNull()) { - setMask(mask); - } else { - clearMask(); - } - resize(pm.width(),pm.height()); - pixmap = pm; - update(); - } - QPoint pm_hot; - -protected: - QPixmap pixmap; - void paintEvent(QPaintEvent*) - { - QPainter p(this); - p.drawPixmap(0, 0, pixmap); - } -}; - -#include "qdnd_x11.moc" - -struct XdndData { - QShapedPixmapWidget *deco; - QWidget* desktop_proxy; -}; - -static XdndData xdnd_data = { 0, 0 }; - -class QExtraWidget : public QWidget -{ - Q_DECLARE_PRIVATE(QWidget) -public: - inline QWExtra* extraData(); - inline QTLWExtra* topData(); -}; - -inline QWExtra* QExtraWidget::extraData() { return d_func()->extraData(); } -inline QTLWExtra* QExtraWidget::topData() { return d_func()->topData(); } - - -static WId xdndProxy(WId w) -{ - Atom type = XNone; - int f; - unsigned long n, a; - unsigned char *retval = 0; - XGetWindowProperty(X11->display, w, ATOM(XdndProxy), 0, 1, False, - XA_WINDOW, &type, &f,&n,&a,&retval); - WId *proxy_id_ptr = (WId *)retval; - WId proxy_id = 0; - if (type == XA_WINDOW && proxy_id_ptr) { - proxy_id = *proxy_id_ptr; - XFree(proxy_id_ptr); - proxy_id_ptr = 0; - // Already exists. Real? - X11->ignoreBadwindow(); - XGetWindowProperty(X11->display, proxy_id, ATOM(XdndProxy), 0, 1, False, - XA_WINDOW, &type, &f,&n,&a,&retval); - proxy_id_ptr = (WId *)retval; - if (X11->badwindow() || type != XA_WINDOW || !proxy_id_ptr || *proxy_id_ptr != proxy_id) - // Bogus - we will overwrite. - proxy_id = 0; - } - if (proxy_id_ptr) - XFree(proxy_id_ptr); - return proxy_id; -} - -static bool xdndEnable(QWidget* w, bool on) -{ - DNDDEBUG << "xdndEnable" << w << on; - if (on) { - QWidget * xdnd_widget = 0; - if ((w->windowType() == Qt::Desktop)) { - if (xdnd_data.desktop_proxy) // *WE* already have one. - return false; - - // As per Xdnd4, use XdndProxy - XGrabServer(X11->display); - Q_ASSERT(w->testAttribute(Qt::WA_WState_Created)); - WId proxy_id = xdndProxy(w->effectiveWinId()); - - if (!proxy_id) { - xdnd_widget = xdnd_data.desktop_proxy = new QWidget; - proxy_id = xdnd_data.desktop_proxy->effectiveWinId(); - XChangeProperty (X11->display, w->effectiveWinId(), ATOM(XdndProxy), - XA_WINDOW, 32, PropModeReplace, (unsigned char *)&proxy_id, 1); - XChangeProperty (X11->display, proxy_id, ATOM(XdndProxy), - XA_WINDOW, 32, PropModeReplace, (unsigned char *)&proxy_id, 1); - } - - XUngrabServer(X11->display); - } else { - xdnd_widget = w->window(); - } - if (xdnd_widget) { - DNDDEBUG << "setting XdndAware for" << xdnd_widget << xdnd_widget->effectiveWinId(); - Atom atm = (Atom)xdnd_version; - Q_ASSERT(xdnd_widget->testAttribute(Qt::WA_WState_Created)); - XChangeProperty(X11->display, xdnd_widget->effectiveWinId(), ATOM(XdndAware), - XA_ATOM, 32, PropModeReplace, (unsigned char *)&atm, 1); - return true; - } else { - return false; - } - } else { - if ((w->windowType() == Qt::Desktop)) { - XDeleteProperty(X11->display, w->internalWinId(), ATOM(XdndProxy)); - delete xdnd_data.desktop_proxy; - xdnd_data.desktop_proxy = 0; - } else { - DNDDEBUG << "not deleting XDndAware"; - } - return true; - } -} - -QByteArray QX11Data::xdndAtomToString(Atom a) -{ - if (!a) return 0; - - if (a == XA_STRING || a == ATOM(UTF8_STRING)) { - return "text/plain"; // some Xdnd clients are dumb - } - char *atom = XGetAtomName(display, a); - QByteArray result = atom; - XFree(atom); - return result; -} - -Atom QX11Data::xdndStringToAtom(const char *mimeType) -{ - if (!mimeType || !*mimeType) - return 0; - return XInternAtom(display, mimeType, False); -} - -//$$$ -QString QX11Data::xdndMimeAtomToString(Atom a) -{ - QString atomName; - if (a) { - char *atom = XGetAtomName(display, a); - atomName = QString::fromLatin1(atom); - XFree(atom); - } - return atomName; -} - -//$$$ -Atom QX11Data::xdndMimeStringToAtom(const QString &mimeType) -{ - if (mimeType.isEmpty()) - return 0; - return XInternAtom(display, mimeType.toLatin1().constData(), False); -} - -//$$$ replace ccxdndAtomToString() -QStringList QX11Data::xdndMimeFormatsForAtom(Atom a) -{ - QStringList formats; - if (a) { - QString atomName = xdndMimeAtomToString(a); - formats.append(atomName); - - // special cases for string type - if (a == ATOM(UTF8_STRING) || a == XA_STRING - || a == ATOM(TEXT) || a == ATOM(COMPOUND_TEXT)) - formats.append(QLatin1String("text/plain")); - - // special cases for uris - if (atomName == QLatin1String("text/x-moz-url")) - formats.append(QLatin1String("text/uri-list")); - - // special case for images - if (a == XA_PIXMAP) - formats.append(QLatin1String("image/ppm")); - } - return formats; -} - -//$$$ -bool QX11Data::xdndMimeDataForAtom(Atom a, QMimeData *mimeData, QByteArray *data, Atom *atomFormat, int *dataFormat) -{ - bool ret = false; - *atomFormat = a; - *dataFormat = 8; - QString atomName = xdndMimeAtomToString(a); - if (QInternalMimeData::hasFormatHelper(atomName, mimeData)) { - *data = QInternalMimeData::renderDataHelper(atomName, mimeData); - if (atomName == QLatin1String("application/x-color")) - *dataFormat = 16; - ret = true; - } else { - if ((a == ATOM(UTF8_STRING) || a == XA_STRING - || a == ATOM(TEXT) || a == ATOM(COMPOUND_TEXT)) - && QInternalMimeData::hasFormatHelper(QLatin1String("text/plain"), mimeData)) { - if (a == ATOM(UTF8_STRING)){ - *data = QInternalMimeData::renderDataHelper(QLatin1String("text/plain"), mimeData); - ret = true; - } else if (a == XA_STRING) { - *data = QString::fromUtf8(QInternalMimeData::renderDataHelper( - QLatin1String("text/plain"), mimeData)).toLocal8Bit(); - ret = true; - } else if (a == ATOM(TEXT) || a == ATOM(COMPOUND_TEXT)) { - // the ICCCM states that TEXT and COMPOUND_TEXT are in the - // encoding of choice, so we choose the encoding of the locale - QByteArray strData = QString::fromUtf8(QInternalMimeData::renderDataHelper( - QLatin1String("text/plain"), mimeData)).toLocal8Bit(); - char *list[] = { strData.data(), NULL }; - - XICCEncodingStyle style = (a == ATOM(COMPOUND_TEXT)) - ? XCompoundTextStyle : XStdICCTextStyle; - XTextProperty textprop; - if (list[0] != NULL - && XmbTextListToTextProperty(X11->display, list, 1, style, - &textprop) == Success) { - *atomFormat = textprop.encoding; - *dataFormat = textprop.format; - *data = QByteArray((const char *) textprop.value, textprop.nitems * textprop.format / 8); - ret = true; - - DEBUG(" textprop type %lx\n" - " textprop name '%s'\n" - " format %d\n" - " %ld items\n" - " %d bytes\n", - textprop.encoding, - X11->xdndMimeAtomToString(textprop.encoding).toLatin1().data(), - textprop.format, textprop.nitems, data->size()); - - XFree(textprop.value); - } - } - } else if (atomName == QLatin1String("text/x-moz-url") && - QInternalMimeData::hasFormatHelper(QLatin1String("text/uri-list"), mimeData)) { - QByteArray uri = QInternalMimeData::renderDataHelper( - QLatin1String("text/uri-list"), mimeData).split('\n').first(); - QString mozUri = QString::fromLatin1(uri, uri.size()); - mozUri += QLatin1Char('\n'); - *data = QByteArray(reinterpret_cast<const char *>(mozUri.utf16()), mozUri.length() * 2); - ret = true; - } else if ((a == XA_PIXMAP || a == XA_BITMAP) && mimeData->hasImage()) { - QPixmap pm = qvariant_cast<QPixmap>(mimeData->imageData()); - if (a == XA_BITMAP && pm.depth() != 1) { - QImage img = pm.toImage(); - img = img.convertToFormat(QImage::Format_MonoLSB); - pm = QPixmap::fromImage(img); - } - QDragManager *dm = QDragManager::self(); - if (dm) { - Pixmap handle = pm.handle(); - *data = QByteArray((const char *) &handle, sizeof(Pixmap)); - dm->xdndMimeTransferedPixmap[dm->xdndMimeTransferedPixmapIndex] = pm; - dm->xdndMimeTransferedPixmapIndex = - (dm->xdndMimeTransferedPixmapIndex + 1) % 2; - ret = true; - } - } else { - DEBUG("QClipboard: xdndMimeDataForAtom(): converting to type '%s' is not supported", qPrintable(atomName)); - } - } - return ret && data != 0; -} - -//$$$ -QList<Atom> QX11Data::xdndMimeAtomsForFormat(const QString &format) -{ - QList<Atom> atoms; - atoms.append(xdndMimeStringToAtom(format)); - - // special cases for strings - if (format == QLatin1String("text/plain")) { - atoms.append(ATOM(UTF8_STRING)); - atoms.append(XA_STRING); - atoms.append(ATOM(TEXT)); - atoms.append(ATOM(COMPOUND_TEXT)); - } - - // special cases for uris - if (format == QLatin1String("text/uri-list")) { - atoms.append(xdndMimeStringToAtom(QLatin1String("text/x-moz-url"))); - } - - //special cases for images - if (format == QLatin1String("image/ppm")) - atoms.append(XA_PIXMAP); - if (format == QLatin1String("image/pbm")) - atoms.append(XA_BITMAP); - - return atoms; -} - -//$$$ -QVariant QX11Data::xdndMimeConvertToFormat(Atom a, const QByteArray &data, const QString &format, QVariant::Type requestedType, const QByteArray &encoding) -{ - QString atomName = xdndMimeAtomToString(a); - if (atomName == format) - return data; - - if (!encoding.isEmpty() - && atomName == format + QLatin1String(";charset=") + QString::fromLatin1(encoding)) { - - if (requestedType == QVariant::String) { - QTextCodec *codec = QTextCodec::codecForName(encoding); - if (codec) - return codec->toUnicode(data); - } - - return data; - } - - // special cases for string types - if (format == QLatin1String("text/plain")) { - if (a == ATOM(UTF8_STRING)) - return QString::fromUtf8(data); - if (a == XA_STRING) - return QString::fromLatin1(data); - if (a == ATOM(TEXT) || a == ATOM(COMPOUND_TEXT)) - // #### might be wrong for COMPUND_TEXT - return QString::fromLocal8Bit(data, data.size()); - } - - // special case for uri types - if (format == QLatin1String("text/uri-list")) { - if (atomName == QLatin1String("text/x-moz-url")) { - // we expect this as utf16 <url><space><title> - // the first part is a url that should only contain ascci char - // so it should be safe to check that the second char is 0 - // to verify that it is utf16 - if (data.size() > 1 && data.at(1) == 0) - return QString::fromRawData((const QChar *)data.constData(), - data.size() / 2).split(QLatin1Char('\n')).first().toLatin1(); - } - } - - // special cas for images - if (format == QLatin1String("image/ppm")) { - if (a == XA_PIXMAP && data.size() == sizeof(Pixmap)) { - Pixmap xpm = *((Pixmap*)data.data()); - if (!xpm) - return QByteArray(); - QPixmap qpm = QPixmap::fromX11Pixmap(xpm); - QImageWriter imageWriter; - imageWriter.setFormat("PPMRAW"); - QImage imageToWrite = qpm.toImage(); - QBuffer buf; - buf.open(QIODevice::WriteOnly); - imageWriter.setDevice(&buf); - imageWriter.write(imageToWrite); - return buf.buffer(); - } - } - return QVariant(); -} - -//$$$ middle of xdndObtainData -Atom QX11Data::xdndMimeAtomForFormat(const QString &format, QVariant::Type requestedType, const QList<Atom> &atoms, QByteArray *encoding) -{ - encoding->clear(); - - // find matches for string types - if (format == QLatin1String("text/plain")) { - if (atoms.contains(ATOM(UTF8_STRING))) - return ATOM(UTF8_STRING); - if (atoms.contains(ATOM(COMPOUND_TEXT))) - return ATOM(COMPOUND_TEXT); - if (atoms.contains(ATOM(TEXT))) - return ATOM(TEXT); - if (atoms.contains(XA_STRING)) - return XA_STRING; - } - - // find matches for uri types - if (format == QLatin1String("text/uri-list")) { - Atom a = xdndMimeStringToAtom(format); - if (a && atoms.contains(a)) - return a; - a = xdndMimeStringToAtom(QLatin1String("text/x-moz-url")); - if (a && atoms.contains(a)) - return a; - } - - // find match for image - if (format == QLatin1String("image/ppm")) { - if (atoms.contains(XA_PIXMAP)) - return XA_PIXMAP; - } - - // for string/text requests try to use a format with a well-defined charset - // first to avoid encoding problems - if (requestedType == QVariant::String - && format.startsWith(QLatin1String("text/")) - && !format.contains(QLatin1String("charset="))) { - - QString formatWithCharset = format; - formatWithCharset.append(QLatin1String(";charset=utf-8")); - - Atom a = xdndMimeStringToAtom(formatWithCharset); - if (a && atoms.contains(a)) { - *encoding = "utf-8"; - return a; - } - } - - Atom a = xdndMimeStringToAtom(format); - if (a && atoms.contains(a)) - return a; - - return 0; -} - -void QX11Data::xdndSetup() { - QCursorData::initialize(); - qAddPostRoutine(qt_xdnd_cleanup); -} - - -void qt_xdnd_cleanup() -{ - delete noDropCursor; - noDropCursor = 0; - delete copyCursor; - copyCursor = 0; - delete moveCursor; - moveCursor = 0; - delete linkCursor; - linkCursor = 0; - delete defaultPm; - defaultPm = 0; - delete xdnd_data.desktop_proxy; - xdnd_data.desktop_proxy = 0; - delete xdnd_data.deco; - xdnd_data.deco = 0; -} - - -static QWidget *find_child(QWidget *tlw, QPoint & p) -{ - QWidget *widget = tlw; - - p = widget->mapFromGlobal(p); - bool done = false; - while (!done) { - done = true; - if (((QExtraWidget*)widget)->extraData() && - ((QExtraWidget*)widget)->extraData()->xDndProxy != 0) - break; // stop searching for widgets under the mouse cursor if found widget is a proxy. - QObjectList children = widget->children(); - if (!children.isEmpty()) { - for(int i = children.size(); i > 0;) { - --i; - QWidget *w = qobject_cast<QWidget *>(children.at(i)); - if (!w) - continue; - if (w->testAttribute(Qt::WA_TransparentForMouseEvents)) - continue; - if (w->isVisible() && - w->geometry().contains(p) && - !w->isWindow()) { - widget = w; - done = false; - p = widget->mapFromParent(p); - break; - } - } - } - } - return widget; -} - - -static bool checkEmbedded(QWidget* w, const XEvent* xe) -{ - if (!w) - return false; - - if (current_embedding_widget != 0 && current_embedding_widget != w) { - qt_xdnd_current_target = ((QExtraWidget*)current_embedding_widget)->extraData()->xDndProxy; - qt_xdnd_current_proxy_target = qt_xdnd_current_target; - qt_xdnd_send_leave(); - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - current_embedding_widget = 0; - } - - QWExtra* extra = ((QExtraWidget*)w)->extraData(); - if (extra && extra->xDndProxy != 0) { - - if (current_embedding_widget != w) { - - last_enter_event.xany.window = extra->xDndProxy; - XSendEvent(X11->display, extra->xDndProxy, False, NoEventMask, &last_enter_event); - current_embedding_widget = w; - } - - ((XEvent*)xe)->xany.window = extra->xDndProxy; - XSendEvent(X11->display, extra->xDndProxy, False, NoEventMask, (XEvent*)xe); - if (qt_xdnd_current_widget != w) { - qt_xdnd_current_widget = w; - } - return true; - } - current_embedding_widget = 0; - return false; -} - -void QX11Data::xdndHandleEnter(QWidget *, const XEvent * xe, bool /*passive*/) -{ - motifdnd_active = false; - - last_enter_event.xclient = xe->xclient; - - const long *l = xe->xclient.data.l; - int version = (int)(((unsigned long)(l[1])) >> 24); - - if (version > xdnd_version) - return; - - qt_xdnd_dragsource_xid = l[0]; - - int j = 0; - if (l[1] & 1) { - // get the types from XdndTypeList - Atom type = XNone; - int f; - unsigned long n, a; - unsigned char *retval = 0; - XGetWindowProperty(X11->display, qt_xdnd_dragsource_xid, ATOM(XdndTypelist), 0, - qt_xdnd_max_type, False, XA_ATOM, &type, &f,&n,&a,&retval); - if (retval) { - Atom *data = (Atom *)retval; - for (; j<qt_xdnd_max_type && j < (int)n; j++) { - qt_xdnd_types[j] = data[j]; - } - XFree((uchar*)data); - } - } else { - // get the types from the message - int i; - for(i=2; i < 5; i++) { - qt_xdnd_types[j++] = l[i]; - } - } - qt_xdnd_types[j] = 0; -} - -static void handle_xdnd_position(QWidget *w, const XEvent * xe, bool passive) -{ - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - QPoint p((l[2] & 0xffff0000) >> 16, l[2] & 0x0000ffff); - QWidget * c = find_child(w, p); // changes p to to c-local coordinates - - if (!passive && checkEmbedded(c, xe)) - return; - - if (!c || (!c->acceptDrops() && (c->windowType() == Qt::Desktop))) - return; - - if (l[0] != qt_xdnd_dragsource_xid) { - DEBUG("xdnd drag position from unexpected source (%08lx not %08lx)", l[0], qt_xdnd_dragsource_xid); - return; - } - - // timestamp from the source - if (l[3] != 0) { - // Some X server/client combination swallow the first 32 bit and - // interpret a set bit 31 as negative sign. - qt_xdnd_target_current_time = X11->userTime = - ((sizeof(Time) == 8 && xe->xclient.data.l[3] < 0) - ? uint(l[3]) - : l[3]); - } - - QDragManager *manager = QDragManager::self(); - QMimeData *dropData = manager->object ? manager->dragPrivate()->data : manager->dropData; - - XClientMessageEvent response; - response.type = ClientMessage; - response.window = qt_xdnd_dragsource_xid; - response.format = 32; - response.message_type = ATOM(XdndStatus); - response.data.l[0] = w->effectiveWinId(); - response.data.l[1] = 0; // flags - response.data.l[2] = 0; // x, y - response.data.l[3] = 0; // w, h - response.data.l[4] = 0; // action - - if (!passive) { // otherwise just reject - while (c && !c->acceptDrops() && !c->isWindow()) { - p = c->mapToParent(p); - c = c->parentWidget(); - } - QWidget *target_widget = c && c->acceptDrops() ? c : 0; - - QRect answerRect(c->mapToGlobal(p), QSize(1,1)); - - if (manager->object) { - possible_actions = manager->dragPrivate()->possible_actions; - } else { - possible_actions = Qt::DropActions(xdndaction_to_qtaction(l[4])); -// possible_actions |= Qt::CopyAction; - } - QDragMoveEvent me(p, possible_actions, dropData, QApplication::mouseButtons(), QApplication::keyboardModifiers()); - - Qt::DropAction accepted_action = Qt::IgnoreAction; - - - if (target_widget != qt_xdnd_current_widget) { - if (qt_xdnd_current_widget) { - QDragLeaveEvent e; - QApplication::sendEvent(qt_xdnd_current_widget, &e); - } - if (qt_xdnd_current_widget != target_widget) { - qt_xdnd_current_widget = target_widget; - } - if (target_widget) { - qt_xdnd_current_position = p; - - last_target_accepted_action = Qt::IgnoreAction; - QDragEnterEvent de(p, possible_actions, dropData, QApplication::mouseButtons(), QApplication::keyboardModifiers()); - QApplication::sendEvent(target_widget, &de); - if (de.isAccepted() && de.dropAction() != Qt::IgnoreAction) - last_target_accepted_action = de.dropAction(); - } - } - - DEBUG() << "qt_handle_xdnd_position action=" << X11->xdndAtomToString(l[4]); - if (!target_widget) { - answerRect = QRect(p, QSize(1, 1)); - } else { - qt_xdnd_current_widget = c; - qt_xdnd_current_position = p; - - if (last_target_accepted_action != Qt::IgnoreAction) { - me.setDropAction(last_target_accepted_action); - me.accept(); - } - QApplication::sendEvent(c, &me); - if (me.isAccepted()) { - response.data.l[1] = 1; // yes - accepted_action = me.dropAction(); - last_target_accepted_action = accepted_action; - } else { - response.data.l[0] = 0; - last_target_accepted_action = Qt::IgnoreAction; - } - answerRect = me.answerRect().intersected(c->rect()); - } - answerRect = QRect(c->mapToGlobal(answerRect.topLeft()), answerRect.size()); - - if (answerRect.left() < 0) - answerRect.setLeft(0); - if (answerRect.right() > 4096) - answerRect.setRight(4096); - if (answerRect.top() < 0) - answerRect.setTop(0); - if (answerRect.bottom() > 4096) - answerRect.setBottom(4096); - if (answerRect.width() < 0) - answerRect.setWidth(0); - if (answerRect.height() < 0) - answerRect.setHeight(0); - - response.data.l[2] = (answerRect.x() << 16) + answerRect.y(); - response.data.l[3] = (answerRect.width() << 16) + answerRect.height(); - response.data.l[4] = qtaction_to_xdndaction(accepted_action); - } - - // reset - qt_xdnd_target_current_time = CurrentTime; - - QWidget * source = QWidget::find(qt_xdnd_dragsource_xid); - if (source && (source->windowType() == Qt::Desktop) && !source->acceptDrops()) - source = 0; - - DEBUG() << "sending XdndStatus"; - if (source) - handle_xdnd_status(source, (const XEvent *)&response, passive); - else - XSendEvent(X11->display, qt_xdnd_dragsource_xid, False, NoEventMask, (XEvent*)&response); -} - -static Bool xdnd_position_scanner(Display *, XEvent *event, XPointer) -{ - if (event->type != ClientMessage) - return false; - XClientMessageEvent *ev = &event->xclient; - - if (ev->message_type == ATOM(XdndPosition)) - return true; - - return false; -} - -void QX11Data::xdndHandlePosition(QWidget * w, const XEvent * xe, bool passive) -{ - DEBUG("xdndHandlePosition"); - while (XCheckIfEvent(X11->display, (XEvent *)xe, xdnd_position_scanner, 0)) - ; - - handle_xdnd_position(w, xe, passive); -} - - -static void handle_xdnd_status(QWidget *, const XEvent * xe, bool) -{ - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - // ignore late status messages - if (l[0] && l[0] != qt_xdnd_current_proxy_target) - return; - Qt::DropAction newAction = (l[1] & 0x1) ? xdndaction_to_qtaction(l[4]) : Qt::IgnoreAction; - - if ((int)(l[1] & 2) == 0) { - QPoint p((l[2] & 0xffff0000) >> 16, l[2] & 0x0000ffff); - QSize s((l[3] & 0xffff0000) >> 16, l[3] & 0x0000ffff); - qt_xdnd_source_sameanswer = QRect(p, s); - } else { - qt_xdnd_source_sameanswer = QRect(); - } - QDragManager *manager = QDragManager::self(); - manager->willDrop = (l[1] & 0x1); - if (global_accepted_action != newAction) - manager->emitActionChanged(newAction); - global_accepted_action = newAction; - manager->updateCursor(); - waiting_for_status = false; -} - -static Bool xdnd_status_scanner(Display *, XEvent *event, XPointer) -{ - if (event->type != ClientMessage) - return false; - XClientMessageEvent *ev = &event->xclient; - - if (ev->message_type == ATOM(XdndStatus)) - return true; - - return false; -} - -void QX11Data::xdndHandleStatus(QWidget * w, const XEvent * xe, bool passive) -{ - DEBUG("xdndHandleStatus"); - while (XCheckIfEvent(X11->display, (XEvent *)xe, xdnd_status_scanner, 0)) - ; - - handle_xdnd_status(w, xe, passive); - DEBUG("xdndHandleStatus end"); -} - -void QX11Data::xdndHandleLeave(QWidget *w, const XEvent * xe, bool /*passive*/) -{ - DEBUG("xdnd leave"); - if (!qt_xdnd_current_widget || - w->window() != qt_xdnd_current_widget->window()) { - return; // sanity - } - - if (checkEmbedded(current_embedding_widget, xe)) { - current_embedding_widget = 0; - qt_xdnd_current_widget = 0; - return; - } - - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - QDragLeaveEvent e; - QApplication::sendEvent(qt_xdnd_current_widget, &e); - - if (l[0] != qt_xdnd_dragsource_xid) { - // This often happens - leave other-process window quickly - DEBUG("xdnd drag leave from unexpected source (%08lx not %08lx", l[0], qt_xdnd_dragsource_xid); - qt_xdnd_current_widget = 0; - return; - } - - qt_xdnd_dragsource_xid = 0; - qt_xdnd_types[0] = 0; - qt_xdnd_current_widget = 0; -} - - -void qt_xdnd_send_leave() -{ - if (!qt_xdnd_current_target) - return; - - QDragManager *manager = QDragManager::self(); - - XClientMessageEvent leave; - leave.type = ClientMessage; - leave.window = qt_xdnd_current_target; - leave.format = 32; - leave.message_type = ATOM(XdndLeave); - leave.data.l[0] = manager->dragPrivate()->source->effectiveWinId(); - leave.data.l[1] = 0; // flags - leave.data.l[2] = 0; // x, y - leave.data.l[3] = 0; // w, h - leave.data.l[4] = 0; // just null - - QWidget * w = QWidget::find(qt_xdnd_current_proxy_target); - - if (w && (w->windowType() == Qt::Desktop) && !w->acceptDrops()) - w = 0; - - if (w) - X11->xdndHandleLeave(w, (const XEvent *)&leave, false); - else - XSendEvent(X11->display, qt_xdnd_current_proxy_target, False, - NoEventMask, (XEvent*)&leave); - - // reset the drag manager state - manager->willDrop = false; - if (global_accepted_action != Qt::IgnoreAction) - manager->emitActionChanged(Qt::IgnoreAction); - global_accepted_action = Qt::IgnoreAction; - manager->updateCursor(); - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - qt_xdnd_source_current_time = 0; - waiting_for_status = false; -} - -// TODO: remove and use QApplication::currentKeyboardModifiers() in Qt 4.8. -static Qt::KeyboardModifiers currentKeyboardModifiers() -{ - Window root; - Window child; - int root_x, root_y, win_x, win_y; - uint keybstate; - for (int i = 0; i < ScreenCount(X11->display); ++i) { - if (XQueryPointer(X11->display, QX11Info::appRootWindow(i), &root, &child, - &root_x, &root_y, &win_x, &win_y, &keybstate)) - return X11->translateModifiers(keybstate & 0x00ff); - } - return 0; -} - -void QX11Data::xdndHandleDrop(QWidget *, const XEvent * xe, bool passive) -{ - DEBUG("xdndHandleDrop"); - if (!qt_xdnd_current_widget) { - qt_xdnd_dragsource_xid = 0; - return; // sanity - } - - if (!passive && checkEmbedded(qt_xdnd_current_widget, xe)){ - current_embedding_widget = 0; - qt_xdnd_dragsource_xid = 0; - qt_xdnd_current_widget = 0; - return; - } - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - QDragManager *manager = QDragManager::self(); - DEBUG("xdnd drop"); - - if (l[0] != qt_xdnd_dragsource_xid) { - DEBUG("xdnd drop from unexpected source (%08lx not %08lx", l[0], qt_xdnd_dragsource_xid); - return; - } - - // update the "user time" from the timestamp in the event. - if (l[2] != 0) { - // Some X server/client combination swallow the first 32 bit and - // interpret a set bit 31 as negative sign. - qt_xdnd_target_current_time = X11->userTime = - ((sizeof(Time) == 8 && xe->xclient.data.l[2] < 0) - ? uint(l[2]) - : l[2]); - } - - if (!passive) { - // this could be a same-application drop, just proxied due to - // some XEMBEDding, so try to find the real QMimeData used - // based on the timestamp for this drop. - QMimeData *dropData = 0; - int at = findXdndDropTransactionByTime(qt_xdnd_target_current_time); - if (at != -1) - dropData = QDragManager::dragPrivate(X11->dndDropTransactions.at(at).object)->data; - // if we can't find it, then use the data in the drag manager - if (!dropData) - dropData = (manager->object) ? manager->dragPrivate()->data : manager->dropData; - - // Drop coming from another app? Update keyboard modifiers. - if (!qt_xdnd_dragging) { - QApplicationPrivate::modifier_buttons = currentKeyboardModifiers(); - } - - QDropEvent de(qt_xdnd_current_position, possible_actions, dropData, - QApplication::mouseButtons(), QApplication::keyboardModifiers()); - QApplication::sendEvent(qt_xdnd_current_widget, &de); - if (!de.isAccepted()) { - // Ignore a failed drag - global_accepted_action = Qt::IgnoreAction; - } else { - global_accepted_action = de.dropAction(); - } - XClientMessageEvent finished; - finished.type = ClientMessage; - finished.window = qt_xdnd_dragsource_xid; - finished.format = 32; - finished.message_type = ATOM(XdndFinished); - DNDDEBUG << "xdndHandleDrop" - << "qt_xdnd_current_widget" << qt_xdnd_current_widget - << (qt_xdnd_current_widget ? qt_xdnd_current_widget->effectiveWinId() : 0) - << "t_xdnd_current_widget->window()" - << (qt_xdnd_current_widget ? qt_xdnd_current_widget->window() : 0) - << (qt_xdnd_current_widget ? qt_xdnd_current_widget->window()->internalWinId() : 0); - finished.data.l[0] = qt_xdnd_current_widget?qt_xdnd_current_widget->window()->internalWinId():0; - finished.data.l[1] = de.isAccepted() ? 1 : 0; // flags - finished.data.l[2] = qtaction_to_xdndaction(global_accepted_action); - XSendEvent(X11->display, qt_xdnd_dragsource_xid, False, - NoEventMask, (XEvent*)&finished); - } else { - QDragLeaveEvent e; - QApplication::sendEvent(qt_xdnd_current_widget, &e); - } - qt_xdnd_dragsource_xid = 0; - qt_xdnd_current_widget = 0; - waiting_for_status = false; - - // reset - qt_xdnd_target_current_time = CurrentTime; -} - - -void QX11Data::xdndHandleFinished(QWidget *, const XEvent * xe, bool passive) -{ - DEBUG("xdndHandleFinished"); - const unsigned long *l = (const unsigned long *)xe->xclient.data.l; - - DNDDEBUG << "xdndHandleFinished, l[0]" << l[0] - << "qt_xdnd_current_target" << qt_xdnd_current_target - << "qt_xdnd_current_proxy_targe" << qt_xdnd_current_proxy_target; - - if (l[0]) { - int at = findXdndDropTransactionByWindow(l[0]); - if (at != -1) { - restartXdndDropExpiryTimer(); - - QXdndDropTransaction t = X11->dndDropTransactions.takeAt(at); - QDragManager *manager = QDragManager::self(); - - Window target = qt_xdnd_current_target; - Window proxy_target = qt_xdnd_current_proxy_target; - QWidget *embedding_widget = current_embedding_widget; - QDrag *currentObject = manager->object; - - qt_xdnd_current_target = t.target; - qt_xdnd_current_proxy_target = t.proxy_target; - current_embedding_widget = t.embedding_widget; - manager->object = t.object; - - if (!passive) - (void) checkEmbedded(qt_xdnd_current_widget, xe); - - current_embedding_widget = 0; - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - - if (t.object) - t.object->deleteLater(); - - qt_xdnd_current_target = target; - qt_xdnd_current_proxy_target = proxy_target; - current_embedding_widget = embedding_widget; - manager->object = currentObject; - } - } - waiting_for_status = false; -} - - -void QDragManager::timerEvent(QTimerEvent* e) -{ - if (e->timerId() == heartbeat && qt_xdnd_source_sameanswer.isNull()) { - move(QCursor::pos()); - } else if (e->timerId() == transaction_expiry_timer) { - for (int i = 0; i < X11->dndDropTransactions.count(); ++i) { - const QXdndDropTransaction &t = X11->dndDropTransactions.at(i); - if (t.targetWidget) { - // dnd within the same process, don't delete these - continue; - } - t.object->deleteLater(); - X11->dndDropTransactions.removeAt(i--); - } - - killTimer(transaction_expiry_timer); - transaction_expiry_timer = -1; - } -} - -bool QDragManager::eventFilter(QObject * o, QEvent * e) -{ - if (beingCancelled) { - if (e->type() == QEvent::KeyRelease && ((QKeyEvent*)e)->key() == Qt::Key_Escape) { - qApp->removeEventFilter(this); - Q_ASSERT(object == 0); - beingCancelled = false; - eventLoop->exit(); - return true; // block the key release - } - return false; - } - - Q_ASSERT(object != 0); - - if (!o->isWidgetType()) - return false; - - if (e->type() == QEvent::MouseMove) { - QMouseEvent* me = (QMouseEvent *)e; - move(me->globalPos()); - return true; - } else if (e->type() == QEvent::MouseButtonRelease) { - DEBUG("pre drop"); - qApp->removeEventFilter(this); - if (willDrop) - drop(); - else - cancel(); - DEBUG("drop, resetting object"); - beingCancelled = false; - eventLoop->exit(); - return true; - } - - if (e->type() == QEvent::ShortcutOverride) { - // prevent accelerators from firing while dragging - e->accept(); - return true; - } - - if (e->type() == QEvent::KeyPress || e->type() == QEvent::KeyRelease) { - QKeyEvent *ke = ((QKeyEvent*)e); - if (ke->key() == Qt::Key_Escape && e->type() == QEvent::KeyPress) { - cancel(); - qApp->removeEventFilter(this); - beingCancelled = false; - eventLoop->exit(); - } else { - qt_xdnd_source_sameanswer = QRect(); // force move - move(QCursor::pos()); - } - return true; // Eat all key events - } - - // ### We bind modality to widgets, so we have to do this - // ### "manually". - // DnD is modal - eat all other interactive events - switch (e->type()) { - case QEvent::MouseButtonPress: - case QEvent::MouseButtonRelease: - case QEvent::MouseButtonDblClick: - case QEvent::MouseMove: - case QEvent::KeyPress: - case QEvent::KeyRelease: - case QEvent::Wheel: - case QEvent::ShortcutOverride: - return true; - default: - return false; - } -} - -void QDragManager::updateCursor() -{ - if (!noDropCursor) { -#ifndef QT_NO_CURSOR - noDropCursor = new QCursor(Qt::ForbiddenCursor); - moveCursor = new QCursor(Qt::DragMoveCursor); - copyCursor = new QCursor(Qt::DragCopyCursor); - linkCursor = new QCursor(Qt::DragLinkCursor); -#endif - } - - QCursor *c; - if (willDrop) { - if (global_accepted_action == Qt::CopyAction) { - c = copyCursor; - } else if (global_accepted_action == Qt::LinkAction) { - c = linkCursor; - } else { - c = moveCursor; - } - if (xdnd_data.deco) { - xdnd_data.deco->show(); - xdnd_data.deco->raise(); - } - } else { - c = noDropCursor; - //if (qt_xdnd_deco) - // qt_xdnd_deco->hide(); - } -#ifndef QT_NO_CURSOR - if (c) - qApp->changeOverrideCursor(*c); -#endif -} - - -void QDragManager::cancel(bool deleteSource) -{ - DEBUG("QDragManager::cancel"); - Q_ASSERT(heartbeat != -1); - killTimer(heartbeat); - heartbeat = -1; - beingCancelled = true; - qt_xdnd_dragging = false; - - if (qt_xdnd_current_target) - qt_xdnd_send_leave(); - -#ifndef QT_NO_CURSOR - if (restoreCursor) { - QApplication::restoreOverrideCursor(); - restoreCursor = false; - } -#endif - - if (deleteSource && object) - object->deleteLater(); - object = 0; - qDeleteInEventHandler(xdnd_data.deco); - xdnd_data.deco = 0; - - global_accepted_action = Qt::IgnoreAction; -} - -static -Window findRealWindow(const QPoint & pos, Window w, int md) -{ - if (xdnd_data.deco && w == xdnd_data.deco->effectiveWinId()) - return 0; - - if (md) { - X11->ignoreBadwindow(); - XWindowAttributes attr; - XGetWindowAttributes(X11->display, w, &attr); - if (X11->badwindow()) - return 0; - - if (attr.map_state == IsViewable - && QRect(attr.x,attr.y,attr.width,attr.height).contains(pos)) { - { - Atom type = XNone; - int f; - unsigned long n, a; - unsigned char *data; - - XGetWindowProperty(X11->display, w, ATOM(XdndAware), 0, 0, False, - AnyPropertyType, &type, &f,&n,&a,&data); - if (data) XFree(data); - if (type) - return w; - } - - Window r, p; - Window* c; - uint nc; - if (XQueryTree(X11->display, w, &r, &p, &c, &nc)) { - r=0; - for (uint i=nc; !r && i--;) { - r = findRealWindow(pos-QPoint(attr.x,attr.y), - c[i], md-1); - } - XFree(c); - if (r) - return r; - - // We didn't find a client window! Just use the - // innermost window. - } - - // No children! - return w; - } - } - return 0; -} - -void QDragManager::move(const QPoint & globalPos) -{ -#ifdef QT_NO_CURSOR - Q_UNUSED(globalPos); - return; -#else - DEBUG() << "QDragManager::move enter"; - if (!object) { - // perhaps the target crashed? - return; - } - - int screen = QCursor::x11Screen(); - if ((qt_xdnd_current_screen == -1 && screen != X11->defaultScreen) || (screen != qt_xdnd_current_screen)) { - // recreate the pixmap on the new screen... - delete xdnd_data.deco; - QWidget* parent = object->source()->window()->x11Info().screen() == screen - ? object->source()->window() : QApplication::desktop()->screen(screen); - xdnd_data.deco = new QShapedPixmapWidget(parent); - if (!QWidget::mouseGrabber()) { - updatePixmap(); - xdnd_data.deco->grabMouse(); - } - } - xdnd_data.deco->move(QCursor::pos() - xdnd_data.deco->pm_hot); - - if (qt_xdnd_source_sameanswer.contains(globalPos) && qt_xdnd_source_sameanswer.isValid()) - return; - - qt_xdnd_current_screen = screen; - Window rootwin = QX11Info::appRootWindow(qt_xdnd_current_screen); - Window target = 0; - int lx = 0, ly = 0; - if (!XTranslateCoordinates(X11->display, rootwin, rootwin, globalPos.x(), globalPos.y(), &lx, &ly, &target)) - // some weird error... - return; - - if (target == rootwin) { - // Ok. - } else if (target) { - //me - Window src = rootwin; - while (target != 0) { - DNDDEBUG << "checking target for XdndAware" << QWidget::find(target) << target; - int lx2, ly2; - Window t; - // translate coordinates - if (!XTranslateCoordinates(X11->display, src, target, lx, ly, &lx2, &ly2, &t)) { - target = 0; - break; - } - lx = lx2; - ly = ly2; - src = target; - - // check if it has XdndAware - Atom type = 0; - int f; - unsigned long n, a; - unsigned char *data = 0; - XGetWindowProperty(X11->display, target, ATOM(XdndAware), 0, 0, False, - AnyPropertyType, &type, &f,&n,&a,&data); - if (data) - XFree(data); - if (type) { - DNDDEBUG << "Found XdndAware on " << QWidget::find(target) << target; - break; - } - - // find child at the coordinates - if (!XTranslateCoordinates(X11->display, src, src, lx, ly, &lx2, &ly2, &target)) { - target = 0; - break; - } - } - if (xdnd_data.deco && (!target || target == xdnd_data.deco->effectiveWinId())) { - DNDDEBUG << "need to find real window"; - target = findRealWindow(globalPos, rootwin, 6); - DNDDEBUG << "real window found" << QWidget::find(target) << target; - } - } - - QWidget* w; - if (target) { - w = QWidget::find((WId)target); - if (w && (w->windowType() == Qt::Desktop) && !w->acceptDrops()) - w = 0; - } else { - w = 0; - target = rootwin; - } - - DNDDEBUG << "and the final target is " << QWidget::find(target) << target; - DNDDEBUG << "the widget w is" << w; - - WId proxy_target = xdndProxy(target); - if (!proxy_target) - proxy_target = target; - int target_version = 1; - - if (proxy_target) { - Atom type = XNone; - int r, f; - unsigned long n, a; - unsigned char *retval; - X11->ignoreBadwindow(); - r = XGetWindowProperty(X11->display, proxy_target, ATOM(XdndAware), 0, - 1, False, AnyPropertyType, &type, &f,&n,&a,&retval); - int *tv = (int *)retval; - if (r != Success || X11->badwindow()) { - target = 0; - } else { - target_version = qMin(xdnd_version,tv ? *tv : 1); - if (tv) - XFree(tv); -// if (!(!X11->badwindow() && type)) -// target = 0; - } - } - - if (target != qt_xdnd_current_target) { - if (qt_xdnd_current_target) - qt_xdnd_send_leave(); - - qt_xdnd_current_target = target; - qt_xdnd_current_proxy_target = proxy_target; - if (target) { - QVector<Atom> types; - int flags = target_version << 24; - QStringList fmts = QInternalMimeData::formatsHelper(dragPrivate()->data); - for (int i = 0; i < fmts.size(); ++i) { - QList<Atom> atoms = X11->xdndMimeAtomsForFormat(fmts.at(i)); - for (int j = 0; j < atoms.size(); ++j) { - if (!types.contains(atoms.at(j))) - types.append(atoms.at(j)); - } - } - if (types.size() > 3) { - XChangeProperty(X11->display, - dragPrivate()->source->effectiveWinId(), ATOM(XdndTypelist), - XA_ATOM, 32, PropModeReplace, - (unsigned char *)types.data(), - types.size()); - flags |= 0x0001; - } - XClientMessageEvent enter; - enter.type = ClientMessage; - enter.window = target; - enter.format = 32; - enter.message_type = ATOM(XdndEnter); - enter.data.l[0] = dragPrivate()->source->effectiveWinId(); - enter.data.l[1] = flags; - enter.data.l[2] = types.size()>0 ? types.at(0) : 0; - enter.data.l[3] = types.size()>1 ? types.at(1) : 0; - enter.data.l[4] = types.size()>2 ? types.at(2) : 0; - // provisionally set the rectangle to 5x5 pixels... - qt_xdnd_source_sameanswer = QRect(globalPos.x() - 2, - globalPos.y() -2 , 5, 5); - - DEBUG("sending Xdnd enter"); - if (w) - X11->xdndHandleEnter(w, (const XEvent *)&enter, false); - else if (target) - XSendEvent(X11->display, proxy_target, False, NoEventMask, (XEvent*)&enter); - waiting_for_status = false; - } - } - if (waiting_for_status) - return; - - if (target) { - waiting_for_status = true; - - XClientMessageEvent move; - move.type = ClientMessage; - move.window = target; - move.format = 32; - move.message_type = ATOM(XdndPosition); - move.window = target; - move.data.l[0] = dragPrivate()->source->effectiveWinId(); - move.data.l[1] = 0; // flags - move.data.l[2] = (globalPos.x() << 16) + globalPos.y(); - move.data.l[3] = X11->time; - move.data.l[4] = qtaction_to_xdndaction(defaultAction(dragPrivate()->possible_actions, QApplication::keyboardModifiers())); - DEBUG("sending Xdnd position"); - - qt_xdnd_source_current_time = X11->time; - - if (w) - handle_xdnd_position(w, (const XEvent *)&move, false); - else - XSendEvent(X11->display, proxy_target, False, NoEventMask, - (XEvent*)&move); - } else { - if (willDrop) { - willDrop = false; - updateCursor(); - } - } - DEBUG() << "QDragManager::move leave"; -#endif -} - - -void QDragManager::drop() -{ - Q_ASSERT(heartbeat != -1); - killTimer(heartbeat); - heartbeat = -1; - qt_xdnd_dragging = false; - - if (!qt_xdnd_current_target) - return; - - qDeleteInEventHandler(xdnd_data.deco); - xdnd_data.deco = 0; - - XClientMessageEvent drop; - drop.type = ClientMessage; - drop.window = qt_xdnd_current_target; - drop.format = 32; - drop.message_type = ATOM(XdndDrop); - drop.data.l[0] = dragPrivate()->source->effectiveWinId(); - drop.data.l[1] = 0; // flags - drop.data.l[2] = X11->time; - - drop.data.l[3] = 0; - drop.data.l[4] = 0; - - QWidget * w = QWidget::find(qt_xdnd_current_proxy_target); - - if (w && (w->windowType() == Qt::Desktop) && !w->acceptDrops()) - w = 0; - - QXdndDropTransaction t = { - X11->time, - qt_xdnd_current_target, - qt_xdnd_current_proxy_target, - w, - current_embedding_widget, - object - }; - X11->dndDropTransactions.append(t); - restartXdndDropExpiryTimer(); - - if (w) - X11->xdndHandleDrop(w, (const XEvent *)&drop, false); - else - XSendEvent(X11->display, qt_xdnd_current_proxy_target, False, - NoEventMask, (XEvent*)&drop); - - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - qt_xdnd_source_current_time = 0; - current_embedding_widget = 0; - object = 0; - -#ifndef QT_NO_CURSOR - if (restoreCursor) { - QApplication::restoreOverrideCursor(); - restoreCursor = false; - } -#endif -} - - - -bool QX11Data::xdndHandleBadwindow() -{ - if (qt_xdnd_current_target) { - QDragManager *manager = QDragManager::self(); - if (manager->object) { - qt_xdnd_current_target = 0; - qt_xdnd_current_proxy_target = 0; - manager->object->deleteLater(); - manager->object = 0; - delete xdnd_data.deco; - xdnd_data.deco = 0; - return true; - } - } - if (qt_xdnd_dragsource_xid) { - qt_xdnd_dragsource_xid = 0; - if (qt_xdnd_current_widget) { - QApplication::postEvent(qt_xdnd_current_widget, new QDragLeaveEvent); - qt_xdnd_current_widget = 0; - } - return true; - } - return false; -} - -void QX11Data::xdndHandleSelectionRequest(const XSelectionRequestEvent * req) -{ - if (!req) - return; - XEvent evt; - evt.xselection.type = SelectionNotify; - evt.xselection.display = req->display; - evt.xselection.requestor = req->requestor; - evt.xselection.selection = req->selection; - evt.xselection.target = XNone; - evt.xselection.property = XNone; - evt.xselection.time = req->time; - - QDragManager *manager = QDragManager::self(); - QDrag *currentObject = manager->object; - - // which transaction do we use? (note: -2 means use current manager->object) - int at = -1; - - // figure out which data the requestor is really interested in - if (manager->object && req->time == qt_xdnd_source_current_time) { - // requestor wants the current drag data - at = -2; - } else { - // if someone has requested data in response to XdndDrop, find the corresponding transaction. the - // spec says to call XConvertSelection() using the timestamp from the XdndDrop - at = findXdndDropTransactionByTime(req->time); - if (at == -1) { - // no dice, perhaps the client was nice enough to use the same window id in XConvertSelection() - // that we sent the XdndDrop event to. - at = findXdndDropTransactionByWindow(req->requestor); - } - if (at == -1 && req->time == CurrentTime) { - // previous Qt versions always requested the data on a child of the target window - // using CurrentTime... but it could be asking for either drop data or the current drag's data - Window target = findXdndAwareParent(req->requestor); - if (target) { - if (qt_xdnd_current_target && qt_xdnd_current_target == target) - at = -2; - else - at = findXdndDropTransactionByWindow(target); - } - } - } - if (at >= 0) { - restartXdndDropExpiryTimer(); - - // use the drag object from an XdndDrop tansaction - manager->object = X11->dndDropTransactions.at(at).object; - } else if (at != -2) { - // no transaction found, we'll have to reject the request - manager->object = 0; - } - if (manager->object) { - Atom atomFormat = req->target; - int dataFormat = 0; - QByteArray data; - if (X11->xdndMimeDataForAtom(req->target, manager->dragPrivate()->data, - &data, &atomFormat, &dataFormat)) { - int dataSize = data.size() / (dataFormat / 8); - XChangeProperty (X11->display, req->requestor, req->property, - atomFormat, dataFormat, PropModeReplace, - (unsigned char *)data.data(), dataSize); - evt.xselection.property = req->property; - evt.xselection.target = atomFormat; - } - } - - // reset manager->object in case we modified it above - manager->object = currentObject; - - // ### this can die if req->requestor crashes at the wrong - // ### moment - XSendEvent(X11->display, req->requestor, False, 0, &evt); -} - -static QVariant xdndObtainData(const char *format, QVariant::Type requestedType) -{ - QByteArray result; - - QWidget* w; - QDragManager *manager = QDragManager::self(); - if (qt_xdnd_dragsource_xid && manager->object && - (w=QWidget::find(qt_xdnd_dragsource_xid)) - && (!(w->windowType() == Qt::Desktop) || w->acceptDrops())) - { - QDragPrivate * o = QDragManager::self()->dragPrivate(); - if (o->data->hasFormat(QLatin1String(format))) - result = o->data->data(QLatin1String(format)); - return result; - } - - QList<Atom> atoms; - int i = 0; - while ((qt_xdnd_types[i])) { - atoms.append(qt_xdnd_types[i]); - ++i; - } - QByteArray encoding; - Atom a = X11->xdndMimeAtomForFormat(QLatin1String(format), requestedType, atoms, &encoding); - if (!a) - return result; - - if (XGetSelectionOwner(X11->display, ATOM(XdndSelection)) == XNone) - return result; // should never happen? - - QWidget* tw = qt_xdnd_current_widget; - if (!qt_xdnd_current_widget || (qt_xdnd_current_widget->windowType() == Qt::Desktop)) - tw = new QWidget; - - XConvertSelection(X11->display, ATOM(XdndSelection), a, ATOM(XdndSelection), tw->effectiveWinId(), - qt_xdnd_target_current_time); - XFlush(X11->display); - - XEvent xevent; - bool got=X11->clipboardWaitForEvent(tw->effectiveWinId(), SelectionNotify, &xevent, 5000); - if (got) { - Atom type; - - if (X11->clipboardReadProperty(tw->effectiveWinId(), ATOM(XdndSelection), true, &result, 0, &type, 0)) { - if (type == ATOM(INCR)) { - int nbytes = result.size() >= 4 ? *((int*)result.data()) : 0; - result = X11->clipboardReadIncrementalProperty(tw->effectiveWinId(), ATOM(XdndSelection), nbytes, false); - } else if (type != a && type != XNone) { - DEBUG("Qt clipboard: unknown atom %ld", type); - } - } - } - if (!qt_xdnd_current_widget || (qt_xdnd_current_widget->windowType() == Qt::Desktop)) - delete tw; - - return X11->xdndMimeConvertToFormat(a, result, QLatin1String(format), requestedType, encoding); -} - - -/* - Enable drag and drop for widget w by installing the proper - properties on w's toplevel widget. -*/ -bool QX11Data::dndEnable(QWidget* w, bool on) -{ - w = w->window(); - - if (bool(((QExtraWidget*)w)->topData()->dnd) == on) - return true; // been there, done that - ((QExtraWidget*)w)->topData()->dnd = on ? 1 : 0; - - motifdndEnable(w, on); - return xdndEnable(w, on); -} - -Qt::DropAction QDragManager::drag(QDrag * o) -{ - if (object == o || !o || !o->d_func()->source) - return Qt::IgnoreAction; - - if (object) { - cancel(); - qApp->removeEventFilter(this); - beingCancelled = false; - } - - if (object) { - // the last drag and drop operation hasn't finished, so we are going to wait - // for one second to see if it does... if the finish message comes after this, - // then we could still have problems, but this is highly unlikely - QApplication::flush(); - - QElapsedTimer timer; - timer.start(); - do { - XEvent event; - if (XCheckTypedEvent(X11->display, ClientMessage, &event)) - qApp->x11ProcessEvent(&event); - - // sleep 50 ms, so we don't use up CPU cycles all the time. - struct timeval usleep_tv; - usleep_tv.tv_sec = 0; - usleep_tv.tv_usec = 50000; - select(0, 0, 0, 0, &usleep_tv); - } while (object && timer.hasExpired(1000)); - } - - object = o; - object->d_func()->target = 0; - xdnd_data.deco = new QShapedPixmapWidget(object->source()->window()); - - willDrop = false; - - updatePixmap(); - - qApp->installEventFilter(this); - XSetSelectionOwner(X11->display, ATOM(XdndSelection), dragPrivate()->source->window()->internalWinId(), X11->time); - global_accepted_action = Qt::CopyAction; - qt_xdnd_source_sameanswer = QRect(); -#ifndef QT_NO_CURSOR - // set the override cursor (must be done here, since it is updated - // in the call to move() below) - qApp->setOverrideCursor(Qt::ArrowCursor); - restoreCursor = true; -#endif - move(QCursor::pos()); - heartbeat = startTimer(200); - - qt_xdnd_dragging = true; - - if (!QWidget::mouseGrabber()) - xdnd_data.deco->grabMouse(); - - eventLoop = new QEventLoop; - (void) eventLoop->exec(); - delete eventLoop; - eventLoop = 0; - -#ifndef QT_NO_CURSOR - if (restoreCursor) { - qApp->restoreOverrideCursor(); - restoreCursor = false; - } -#endif - - // delete cursors as they may be different next drag. - delete noDropCursor; - noDropCursor = 0; - delete copyCursor; - copyCursor = 0; - delete moveCursor; - moveCursor = 0; - delete linkCursor; - linkCursor = 0; - - delete xdnd_data.deco; - xdnd_data.deco = 0; - if (heartbeat != -1) - killTimer(heartbeat); - heartbeat = -1; - qt_xdnd_current_screen = -1; - qt_xdnd_dragging = false; - - return global_accepted_action; - // object persists until we get an xdnd_finish message -} - -void QDragManager::updatePixmap() -{ - if (xdnd_data.deco) { - QPixmap pm; - QPoint pm_hot(default_pm_hotx,default_pm_hoty); - if (object) { - pm = dragPrivate()->pixmap; - if (!pm.isNull()) - pm_hot = dragPrivate()->hotspot; - } - if (pm.isNull()) { - if (!defaultPm) - defaultPm = new QPixmap(default_pm); - pm = *defaultPm; - } - xdnd_data.deco->pm_hot = pm_hot; - xdnd_data.deco->setPixmap(pm); - xdnd_data.deco->move(QCursor::pos()-pm_hot); - xdnd_data.deco->show(); - } -} - -QVariant QDropData::retrieveData_sys(const QString &mimetype, QVariant::Type requestedType) const -{ - QByteArray mime = mimetype.toLatin1(); - QVariant data = X11->motifdnd_active - ? X11->motifdndObtainData(mime) - : xdndObtainData(mime, requestedType); - return data; -} - -bool QDropData::hasFormat_sys(const QString &format) const -{ - return formats().contains(format); -} - -QStringList QDropData::formats_sys() const -{ - QStringList formats; - if (X11->motifdnd_active) { - int i = 0; - QByteArray fmt; - while (!(fmt = X11->motifdndFormat(i)).isEmpty()) { - formats.append(QLatin1String(fmt)); - ++i; - } - } else { - int i = 0; - while ((qt_xdnd_types[i])) { - QStringList formatsForAtom = X11->xdndMimeFormatsForAtom(qt_xdnd_types[i]); - for (int j = 0; j < formatsForAtom.size(); ++j) { - if (!formats.contains(formatsForAtom.at(j))) - formats.append(formatsForAtom.at(j)); - } - ++i; - } - } - return formats; -} - -QT_END_NAMESPACE - -#endif // QT_NO_DRAGANDDROP |