139 lines
2.9 KiB
C++
139 lines
2.9 KiB
C++
/*
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* \brief QGenodeClipboard
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* \author Christian Prochaska
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* \date 2015-09-18
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*/
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/*
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* Copyright (C) 2015-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#include "qgenodeclipboard.h"
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#ifndef QT_NO_CLIPBOARD
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/* Genode includes */
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#include <util/xml_node.h>
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/* Qt includes */
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#include <QMimeData>
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QT_BEGIN_NAMESPACE
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static constexpr bool verbose = false;
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QGenodeClipboard::QGenodeClipboard(Genode::Env &env, Genode::Signal_receiver &sig_rcv)
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: _clipboard_signal_dispatcher(sig_rcv, *this, &QGenodeClipboard::_handle_clipboard)
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{
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try {
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Genode::Attached_rom_dataspace config(env, "config");
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if (config.xml().attribute_value("clipboard", false)) {
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try {
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_clipboard_ds = new Genode::Attached_rom_dataspace(env, "clipboard");
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_clipboard_ds->sigh(_clipboard_signal_dispatcher);
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_clipboard_ds->update();
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} catch (...) { }
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try {
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_clipboard_reporter = new Genode::Reporter(env, "clipboard");
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_clipboard_reporter->enabled(true);
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} catch (...) { }
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}
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} catch (...) { }
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}
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QGenodeClipboard::~QGenodeClipboard()
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{
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free(_decoded_clipboard_content);
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delete _clipboard_ds;
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delete _clipboard_reporter;
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}
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void QGenodeClipboard::_handle_clipboard(unsigned int)
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{
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emitChanged(QClipboard::Clipboard);
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}
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QMimeData *QGenodeClipboard::mimeData(QClipboard::Mode mode)
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{
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if (!_clipboard_ds)
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return 0;
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_clipboard_ds->update();
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if (!_clipboard_ds->valid()) {
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if (verbose)
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Genode::error("invalid clipboard dataspace");
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return 0;
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}
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char *xml_data = _clipboard_ds->local_addr<char>();
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try {
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Genode::Xml_node node(xml_data);
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if (!node.has_type("clipboard")) {
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Genode::error("invalid clipboard xml syntax");
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return 0;
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}
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free(_decoded_clipboard_content);
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_decoded_clipboard_content = (char*)malloc(node.content_size());
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if (!_decoded_clipboard_content) {
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Genode::error("could not allocate buffer for decoded clipboard content");
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return 0;
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}
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_mimedata->setText(QString::fromUtf8(_decoded_clipboard_content,
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node.decoded_content(_decoded_clipboard_content,
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node.content_size())));
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} catch (Genode::Xml_node::Invalid_syntax) {
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Genode::error("invalid clipboard xml syntax");
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return 0;
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}
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return _mimedata;
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}
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void QGenodeClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode)
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{
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if (!data || !data->hasText() || !supportsMode(mode))
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return;
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QString text = data->text();
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QByteArray utf8text = text.toUtf8();
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if (!_clipboard_reporter)
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return;
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try {
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Genode::Reporter::Xml_generator xml(*_clipboard_reporter, [&] () {
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xml.append_sanitized(utf8text.constData(), utf8text.size()); });
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} catch (...) {
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Genode::error("could not write clipboard data");
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}
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}
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QT_END_NAMESPACE
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#endif /* QT_NO_CLIPBOARD */
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