Differential D27481 Diff 75990 applets/panelspacer/plugin/panelspacer.cpp

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applets/panelspacer/plugin/panelspacer.cpp

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		1		/***************************************************************************
		2		* Copyright (C) 2020 Marco Martin <mart@kde.org> *
		3		* *
		4		* This program is free software; you can redistribute it and/or modify *
		5		* it under the terms of the GNU General Public License as published by *
		6		* the Free Software Foundation; either version 2 of the License, or *
		7		* (at your option) any later version. *
		8		* *
		9		* This program 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 *
		12		* GNU General Public License for more details. *
		13		* *
		14		* You should have received a copy of the GNU General Public License *
		15		* along with this program; if not, write to the *
		16		* Free Software Foundation, Inc., *
		17		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
		18		***************************************************************************/
		19
		20		#include "panelspacer.h"
		21
		22		#include <QDebug>
		23		#include <QProcess>
		24		#include <QtQml>
		25
		26		#include <Plasma/Containment>
		27		#include <Plasma/Corona>
		28		#include <PlasmaQuick/AppletQuickItem>
		29
		30		class SpacersTrackerSingleton
		31		{
		32		public:
		33		SpacersTracker self;
		34		};
		35
		36		Q_GLOBAL_STATIC(SpacersTrackerSingleton, privateSpacersTrackerSelf)
		37
		38		SpacersTracker::SpacersTracker(QObject *parent)
		39		: QObject(parent)
		40		{
		41		}
		42
		43		SpacersTracker::~SpacersTracker()
		44		{
		45		}
		46
		47		SpacersTracker *SpacersTracker::self()
		48		{
		49		return &privateSpacersTrackerSelf()->self;
		50		}
		51
		52		void SpacersTracker::insertSpacer(Plasma::Containment containment, PanelSpacer spacer)
		53		{
		54		const bool wasTwin = m_spacers[containment].count() == 2;
		55		m_spacers[containment] << (spacer);
		56		const bool isTwin = m_spacers[containment].count() == 2;
		57
		58		if (isTwin) {
		59		auto *lay1 = m_spacers[containment].first();
		60		auto *lay2 = m_spacers[containment].last();
		61		lay1->setTwinSpacer(lay2->property("_plasma_graphicObject").value<PlasmaQuick::AppletQuickItem *>());
		62		lay2->setTwinSpacer(lay1->property("_plasma_graphicObject").value<PlasmaQuick::AppletQuickItem *>());
		63		} else if (wasTwin) {
		64		for (auto *lay : m_spacers[containment]) {
		65		lay->setTwinSpacer(nullptr);
		66		}
		67		}
		68		}
		69
		70		void SpacersTracker::removeSpacer(Plasma::Containment containment, PanelSpacer spacer)
		71		{
		72		const bool wasTwin = m_spacers[containment].count() == 2;
		73		m_spacers[containment].removeAll(spacer);
		74		const bool isTwin = m_spacers[containment].count() == 2;
		75
		76		if (isTwin) {
		77		auto *lay1 = m_spacers[containment].first();
		78		auto *lay2 = m_spacers[containment].last();
		79		lay1->setTwinSpacer(lay2->property("_plasma_graphicObject").value<PlasmaQuick::AppletQuickItem *>());
		80		lay2->setTwinSpacer(lay1->property("_plasma_graphicObject").value<PlasmaQuick::AppletQuickItem *>());
		81
		82		} else if (wasTwin) {
		83		for (auto *lay : m_spacers[containment]) {
		84		lay->setTwinSpacer(nullptr);
		85		}
		86		}
		87
		88		if (m_spacers[containment].isEmpty()) {
		89		m_spacers.remove(containment);
		90		}
		91		}
		92
		93		/////////////////////////////////////////////////////////////////////
		94
		95		PanelSpacer::PanelSpacer(QObject *parent, const QVariantList &args)
		96		: Plasma::Applet(parent, args)
		97		{
		98		}
		99
		100		PanelSpacer::~PanelSpacer()
		101		{
		102		SpacersTracker::self()->removeSpacer(containment(), this);
		103		}
		104
		105		void PanelSpacer::init()
		106		{
		107
		108		}
		109
		110		void PanelSpacer::constraintsEvent(Plasma::Types::Constraints constraints)
		111		{
		112		// At this point we're sure the AppletQuickItem has been created already
		113		if (constraints & Plasma::Types::UiReadyConstraint) {
		114		Q_ASSERT(containment());
		115		Q_ASSERT(containment()->corona());
		116
		117		SpacersTracker::self()->insertSpacer(containment(), this);
		118		}
		119
		120		Plasma::Applet::constraintsEvent(constraints);
		121		}
		122
		123		void PanelSpacer::setTwinSpacer(PlasmaQuick::AppletQuickItem *spacer)
		124		{
		125		if (m_twinSpacer == spacer) {
		126		return;
		127		}
		128
		129		m_twinSpacer = spacer;
		130		emit twinSpacerChanged();
		131		}
		132
		133		PlasmaQuick::AppletQuickItem *PanelSpacer::twinSpacer() const
		134		{
		135		return m_twinSpacer;
		136		}
		137
		138		PlasmaQuick::AppletQuickItem *PanelSpacer::containmentGraphicObject() const
		139		{
		140		return containment()->property("_plasma_graphicObject").value<PlasmaQuick::AppletQuickItem *>();
		141		}
		142
		143
		144		K_EXPORT_PLASMA_APPLET_WITH_JSON(panelspacer, PanelSpacer, "metadata.json")
		145
		146		#include "panelspacer.moc"