From 4973c2669a9763a2cf561a0d2cb02b19d3708532 Mon Sep 17 00:00:00 2001 From: Laszlo Agocs Date: Fri, 6 May 2011 18:36:43 +0200 Subject: Added Wayland selection support. --- .../platforms/wayland/qwaylandclipboard.cpp | 242 +++++++++++++++++++++ 1 file changed, 242 insertions(+) create mode 100644 src/plugins/platforms/wayland/qwaylandclipboard.cpp (limited to 'src/plugins/platforms/wayland/qwaylandclipboard.cpp') diff --git a/src/plugins/platforms/wayland/qwaylandclipboard.cpp b/src/plugins/platforms/wayland/qwaylandclipboard.cpp new file mode 100644 index 0000000000..9c533aa98b --- /dev/null +++ b/src/plugins/platforms/wayland/qwaylandclipboard.cpp @@ -0,0 +1,242 @@ +/**************************************************************************** +** +** 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 plugins 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 "qwaylandclipboard.h" +#include "qwaylanddisplay.h" +#include "qwaylandinputdevice.h" +#include +#include +#include +#include +#include +#include + +static QWaylandClipboard *clipboard; + +class QWaylandSelection +{ +public: + QWaylandSelection(QWaylandDisplay *display, QMimeData *data); + ~QWaylandSelection(); + +private: + static uint32_t getTime(); + static void send(void *data, struct wl_selection *selection, const char *mime_type, int fd); + static void cancelled(void *data, struct wl_selection *selection); + static const struct wl_selection_listener selectionListener; + + QMimeData *mMimeData; + struct wl_selection *mSelection; +}; + +const struct wl_selection_listener QWaylandSelection::selectionListener = { + QWaylandSelection::send, + QWaylandSelection::cancelled +}; + +uint32_t QWaylandSelection::getTime() +{ + struct timeval tv; + gettimeofday(&tv, 0); + return tv.tv_sec * 1000 + tv.tv_usec / 1000; +} + +QWaylandSelection::QWaylandSelection(QWaylandDisplay *display, QMimeData *data) + : mMimeData(data), mSelection(0) +{ + struct wl_shell *shell = display->wl_shell(); + mSelection = wl_shell_create_selection(shell); + wl_selection_add_listener(mSelection, &selectionListener, this); + foreach (const QString &format, data->formats()) + wl_selection_offer(mSelection, format.toLatin1().constData()); + wl_selection_activate(mSelection, + display->inputDevices().at(0)->wl_input_device(), + getTime()); +} + +QWaylandSelection::~QWaylandSelection() +{ + if (mSelection) { + clipboard->unregisterSelection(this); + wl_selection_destroy(mSelection); + } + delete mMimeData; +} + +void QWaylandSelection::send(void *data, + struct wl_selection *selection, + const char *mime_type, + int fd) +{ + Q_UNUSED(selection); + QWaylandSelection *self = static_cast(data); + QString mimeType = QString::fromLatin1(mime_type); + QByteArray content = self->mMimeData->data(mimeType); + if (!content.isEmpty()) { + QFile f; + if (f.open(fd, QIODevice::WriteOnly)) + f.write(content); + } + close(fd); +} + +void QWaylandSelection::cancelled(void *data, struct wl_selection *selection) +{ + Q_UNUSED(selection); + delete static_cast(data); +} + +QWaylandClipboard::QWaylandClipboard(QWaylandDisplay *display) + : mDisplay(display), mSelection(0), mMimeDataIn(0), mOffer(0) +{ + clipboard = this; +} + +QWaylandClipboard::~QWaylandClipboard() +{ + if (mOffer) + wl_selection_offer_destroy(mOffer); + delete mMimeDataIn; + qDeleteAll(mSelections); +} + +void QWaylandClipboard::unregisterSelection(QWaylandSelection *selection) +{ + mSelections.removeOne(selection); +} + +void QWaylandClipboard::syncCallback(void *data) +{ + *static_cast(data) = true; +} + +void QWaylandClipboard::forceRoundtrip(struct wl_display *display) +{ + bool done = false; + wl_display_sync_callback(display, syncCallback, &done); + wl_display_iterate(display, WL_DISPLAY_WRITABLE); + while (!done) + wl_display_iterate(display, WL_DISPLAY_READABLE); +} + +const QMimeData *QWaylandClipboard::mimeData(QClipboard::Mode mode) const +{ + Q_ASSERT(mode == QClipboard::Clipboard); + if (!mMimeDataIn) + mMimeDataIn = new QMimeData; + mMimeDataIn->clear(); + if (!mOfferedMimeTypes.isEmpty() && mOffer) { + foreach (const QString &mimeType, mOfferedMimeTypes) { + int pipefd[2]; + if (pipe(pipefd) == -1) { + qWarning("QWaylandClipboard::mimedata: pipe() failed"); + break; + } + QByteArray mimeTypeBa = mimeType.toLatin1(); + wl_selection_offer_receive(mOffer, mimeTypeBa.constData(), pipefd[1]); + QByteArray content; + forceRoundtrip(mDisplay->wl_display()); + char buf[256]; + int n; + close(pipefd[1]); + while ((n = read(pipefd[0], &buf, sizeof buf)) > 0) + content.append(buf, n); + close(pipefd[0]); + mMimeDataIn->setData(mimeType, content); + } + } + return mMimeDataIn; +} + +void QWaylandClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode) +{ + Q_ASSERT(mode == QClipboard::Clipboard); + if (!mDisplay->inputDevices().isEmpty()) { + if (!data) + data = new QMimeData; + mSelection = new QWaylandSelection(mDisplay, data); + } else { + qWarning("QWaylandClipboard::setMimeData: No input devices"); + } +} + +bool QWaylandClipboard::supportsMode(QClipboard::Mode mode) const +{ + return mode == QClipboard::Clipboard; +} + +const struct wl_selection_offer_listener QWaylandClipboard::selectionOfferListener = { + QWaylandClipboard::offer, + QWaylandClipboard::keyboardFocus +}; + +void QWaylandClipboard::createSelectionOffer(uint32_t id) +{ + mOfferedMimeTypes.clear(); + if (mOffer) + wl_selection_offer_destroy(mOffer); + mOffer = 0; + struct wl_selection_offer *offer = wl_selection_offer_create(mDisplay->wl_display(), id, 1); + wl_selection_offer_add_listener(offer, &selectionOfferListener, this); +} + +void QWaylandClipboard::offer(void *data, + struct wl_selection_offer *selection_offer, + const char *type) +{ + Q_UNUSED(selection_offer); + QWaylandClipboard *self = static_cast(data); + self->mOfferedMimeTypes.append(QString::fromLatin1(type)); +} + +void QWaylandClipboard::keyboardFocus(void *data, + struct wl_selection_offer *selection_offer, + wl_input_device *input_device) +{ + QWaylandClipboard *self = static_cast(data); + if (!input_device) { + wl_selection_offer_destroy(selection_offer); + self->mOffer = 0; + return; + } + self->mOffer = selection_offer; + self->emitChanged(QClipboard::Clipboard); +} -- cgit v1.2.3