Differential D8583 Diff 22184 plugins/messageviewer/bodypartformatter/semantic/semanticrenderer.cpp

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plugins/messageviewer/bodypartformatter/semantic/semanticrenderer.cpp

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		1		/*
		2		Copyright (c) 2017 Volker Krause <vkrause@kde.org>
		3
		4		This library is free software; you can redistribute it and/or modify it
		5		under the terms of the GNU Library General Public License as published by
		6		the Free Software Foundation; either version 2 of the License, or (at your
		7		option) any later version.
		8
		9		This library is distributed in the hope that it will be useful, but WITHOUT
		10		ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
		11		FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
		12		License for more details.
		13
		14		You should have received a copy of the GNU Library General Public License
		15		along with this library; see the file COPYING.LIB. If not, write to the
		16		Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
		17		02110-1301, USA.
		18		*/
		19
		20		#include "semanticrenderer.h"
		21		#include "datatypes.h"
		22		#include "jsonlddocument.h"
		23		#include "semanticmemento.h"
		24		#include "semantic_debug.h"
		25
		26		#include <MessageViewer/MessagePartRendererManager>
		27		#include <MimeTreeParser/HtmlWriter>
		28
		29		#include <grantlee/metatype.h>
		30		#include <grantlee/template.h>
		31
		32		#include <QDebug>
		33		#include <QGuiApplication>
		34		#include <QJsonDocument>
		35		#include <QMetaProperty>
		36		#include <QPalette>
		37
		38		// Grantlee has no Q_GADGET support yet
		39		#define GRANTLEE_MAKE_GADGET(Class) \
		40		GRANTLEE_BEGIN_LOOKUP(Class) \
		41		const auto idx = Class::staticMetaObject.indexOfProperty(property.toUtf8().constData()); \
		42		if (idx < 0) \
		43		return {}; \
		44		const auto mp = Class::staticMetaObject.property(idx); \
		45		return mp.readOnGadget(&object); \
		46		GRANTLEE_END_LOOKUP
		47
		48		GRANTLEE_MAKE_GADGET(Airport)
		49		GRANTLEE_MAKE_GADGET(Airline)
		50		GRANTLEE_MAKE_GADGET(Flight)
		51		GRANTLEE_MAKE_GADGET(FlightReservation)
		52		GRANTLEE_MAKE_GADGET(LodgingBusiness)
		53		GRANTLEE_MAKE_GADGET(LodgingReservation)
		54		GRANTLEE_MAKE_GADGET(PostalAddress)
		55
		56		SemanticRenderer::SemanticRenderer()
		57		{
		58		Grantlee::registerMetaType<Airport>();
		59		Grantlee::registerMetaType<Airline>();
		60		Grantlee::registerMetaType<Flight>();
		61		Grantlee::registerMetaType<FlightReservation>();
		62		Grantlee::registerMetaType<LodgingBusiness>();
		63		Grantlee::registerMetaType<LodgingReservation>();
		64		Grantlee::registerMetaType<PostalAddress>();
		65		}
		66
		67		bool SemanticRenderer::render(const MimeTreeParser::MessagePartPtr &msgPart, MimeTreeParser::HtmlWriter htmlWriter, MessageViewer::RenderContext context) const
		68		{
		69		Q_UNUSED(context);
		70		const auto mpList = msgPart.dynamicCast<MimeTreeParser::MessagePartList>();
		71		if (!msgPart->isRoot() \|\| !mpList->hasSubParts())
		72		return false;
		73
		74		qCDebug(SEMANTIC_LOG) << "========================================= Semantic Rendering";
		75		const auto node = mpList->subParts().at(0)->content();
		76		const auto nodeHelper = msgPart->nodeHelper();
		77		if (!nodeHelper \|\| !node)
		78		return false;
		79
		80		auto memento = dynamic_cast<SemanticMemento*>(nodeHelper->bodyPartMemento(node->topLevel(), "org.kde.messageviewer.semanticData"));
		81		if (!memento \|\| memento->isEmpty())
		82		return false;
		83
		84		const auto decodedData = JsonLdDocument::fromJson(memento->data());
		85		if (decodedData.isEmpty()) {
		86		qCDebug(SEMANTIC_LOG) << "Unhandled content:" << QJsonDocument(memento->data()).toJson();
		87		return false;
		88		}
		89
		90		auto c = MessageViewer::MessagePartRendererManager::self()->createContext();
		91		c.insert(QStringLiteral("data"), decodedData);
		92
		93		const auto pal = qGuiApp->palette();
		94		QVariantMap style;
		95		style.insert(QStringLiteral("frameColor"), pal.link().color().name());
		96		c.insert(QStringLiteral("style"), style);
		97
		98		auto t = MessageViewer::MessagePartRendererManager::self()->loadByName(QStringLiteral(":/org.kde.messageviewer/semantic/semantic.html"));
		99		Grantlee::OutputStream s(htmlWriter->stream());
		100		t->render(&s, &c);
		101		return false; // yes, false, we want the rest of the email rendered normally after this
		102		}