Differential D29024 Diff 82265 backends/kwayland/wayland_interface.cpp

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backends/kwayland/wayland_interface.cpp

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		1		/*************************************************************************
		2		Copyright © 2020 Roman Gilg <subdiff@gmail.com>
		3
		4		This library is free software; you can redistribute it and/or
		5		modify it under the terms of the GNU Lesser General Public
		6		License as published by the Free Software Foundation; either
		7		version 2.1 of the License, or (at your option) any later version.
		8
		9		This library is distributed in the hope that it will be useful,
		10		but WITHOUT ANY WARRANTY; without even the implied warranty of
		11		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		12		Lesser General Public License for more details.
		13
		14		You should have received a copy of the GNU Lesser General Public
		15		License along with this library; if not, write to the Free Software
		16		Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
		17		**************************************************************************/
		18		#include "wayland_interface.h"
		19
		20		#include "waylandbackend.h"
		21		#include "waylandoutput.h"
		22		#include "waylandscreen.h"
		23
		24		#include <configmonitor.h>
		25		#include <mode.h>
		26
		27		#include "../../wayland_logging.h"
		28
		29		#include <QThread>
		30		#include <QTimer>
		31
		32		using namespace KScreen;
		33
		34		WaylandInterface::WaylandInterface(QObject *parent)
		35		: QObject(parent)
		36		, m_blockSignals(true)
		37		, m_kscreenConfig(new Config)
		38		{
		39		}
		40
		41		WaylandInterface::~WaylandInterface() = default;
		42
		43		bool WaylandInterface::signalsBlocked() const
		44		{
		45		return m_blockSignals;
		46		}
		47
		48		void WaylandInterface::blockSignals()
		49		{
		50		Q_ASSERT(m_blockSignals == false);
		51		m_blockSignals = true;
		52		}
		53
		54		void WaylandInterface::unblockSignals()
		55		{
		56		Q_ASSERT(m_blockSignals == true);
		57		m_blockSignals = false;
		58		}
		59
		60		void WaylandInterface::handleDisconnect()
		61		{
		62		qCWarning(KSCREEN_WAYLAND) << "Wayland disconnected, cleaning up.";
		63		Q_EMIT configChanged();
		64		}
		65
		66		void WaylandInterface::addOutput(WaylandOutput *output)
		67		{
		68		m_initializingOutputs << output;
		69
		70		connect(output, &WaylandOutput::removed,
		71		this, [this, output]() { removeOutput(output); });
		72		connect(output, &WaylandOutput::dataReceived,
		73		this, [this, output]() { initOutput(output); });
		74		}
		75
		76		void WaylandInterface::initOutput(WaylandOutput *output)
		77		{
		78		insertOutput(output);
		79		m_initializingOutputs.removeOne(output);
		80		checkInitialized();
		81
		82		if (!signalsBlocked() && m_initializingOutputs.empty()) {
		83		Q_EMIT outputsChanged();
		84		Q_EMIT configChanged();
		85		}
		86
		87		connect(output, &WaylandOutput::changed, this, [this]() {
		88		if (!signalsBlocked()) {
		89		Q_EMIT configChanged();
		90		}
		91		});
		92		}
		93
		94		void WaylandInterface::removeOutput(WaylandOutput *output)
		95		{
		96		if (m_initializingOutputs.removeOne(output)) {
		97		// Output was not yet fully initialized, just remove here and return.
		98		delete output;
		99		return;
		100		}
		101
		102		// remove the output from output mapping
		103		const auto removedOutput = takeOutput(output);
		104		Q_ASSERT(removedOutput == output); Q_UNUSED(removedOutput);
		105		Q_EMIT outputsChanged();
		106		delete output;
		107
		108		if (!m_blockSignals) {
		109		Q_EMIT configChanged();
		110		}
		111		}
		112
		113		void WaylandInterface::checkInitialized()
		114		{
		115		if (isInitialized()) {
		116		Q_EMIT initialized();
		117		}
		118		}
		119
		120		bool WaylandInterface::isInitialized() const
		121		{
		122		return !m_blockSignals && m_initializingOutputs.isEmpty();
		123		}
		124
		125		void WaylandInterface::applyConfig(const KScreen::ConfigPtr &newConfig)
		126		{
		127		Q_UNUSED(newConfig)
		128		}