From e452707fdfbd61be1e5633b516b653b7337e7865 Mon Sep 17 00:00:00 2001
From: Christian Mollekopf <chrigi_1@fastmail.fm>
Date: Mon, 29 May 2017 16:17:04 +0200
Subject: Reduced the messagetreeparser to aproximately what we actually
 require

While in a much more managable state it's still not pretty.
However, further refactoring can now gradually happen as we need to do
further work on it.

Things that should happen eventually:
* Simplify the logic that creates the messageparts (we don't need the  whole formatter plugin complexity)
* Get rid of the nodehelper (let the parts hold the necessary data)
* Get rid of partmetadata (let the part handleit)
---
 .../mime/mimetreeparser/multipartalternative.cpp   | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 framework/src/domain/mime/mimetreeparser/multipartalternative.cpp

(limited to 'framework/src/domain/mime/mimetreeparser/multipartalternative.cpp')

diff --git a/framework/src/domain/mime/mimetreeparser/multipartalternative.cpp b/framework/src/domain/mime/mimetreeparser/multipartalternative.cpp
new file mode 100644
index 00000000..c2a6f270
--- /dev/null
+++ b/framework/src/domain/mime/mimetreeparser/multipartalternative.cpp
@@ -0,0 +1,82 @@
+/*
+   Copyright (c) 2016 Sandro Knauß <sknauss@kde.org>
+
+   This library is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or (at your
+   option) any later version.
+
+   This library is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
+   License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
+*/
+
+#include "multipartalternative.h"
+
+#include "utils.h"
+
+#include "objecttreeparser.h"
+#include "messagepart.h"
+
+#include <KMime/Content>
+
+#include "mimetreeparser_debug.h"
+
+using namespace MimeTreeParser;
+
+const MultiPartAlternativeBodyPartFormatter *MultiPartAlternativeBodyPartFormatter::self;
+
+const Interface::BodyPartFormatter *MultiPartAlternativeBodyPartFormatter::create()
+{
+    if (!self) {
+        self = new MultiPartAlternativeBodyPartFormatter();
+    }
+    return self;
+}
+
+MessagePart::Ptr MultiPartAlternativeBodyPartFormatter::process(Interface::BodyPart &part) const
+{
+    KMime::Content *node = part.content();
+    if (node->contents().isEmpty()) {
+        return MessagePart::Ptr();
+    }
+
+    //Hardcoded after removing the source
+    auto preferredMode = MimeTreeParser::Util::Html;
+    AlternativeMessagePart::Ptr mp(new AlternativeMessagePart(part.objectTreeParser(), node, preferredMode));
+    if (mp->mChildNodes.isEmpty()) {
+        return MimeMessagePart::Ptr(new MimeMessagePart(part.objectTreeParser(), node->contents().at(0), false));
+    }
+
+    KMime::Content *dataIcal = mp->mChildNodes.contains(Util::MultipartIcal) ? mp->mChildNodes[Util::MultipartIcal] : nullptr;
+    KMime::Content *dataHtml = mp->mChildNodes.contains(Util::MultipartHtml) ? mp->mChildNodes[Util::MultipartHtml] : nullptr;
+    KMime::Content *dataPlain = mp->mChildNodes.contains(Util::MultipartPlain) ? mp->mChildNodes[Util::MultipartPlain] : nullptr;
+
+    // Make sure that in default ical is prefered over html and plain text
+    if (dataIcal && ((preferredMode != Util::MultipartHtml && preferredMode != Util::MultipartPlain))) {
+        if (dataHtml) {
+            part.nodeHelper()->setNodeProcessed(dataHtml, false);
+        }
+        if (dataPlain) {
+            part.nodeHelper()->setNodeProcessed(dataPlain, false);
+        }
+        preferredMode = Util::MultipartIcal;
+    } else if ((dataHtml && (preferredMode == Util::MultipartHtml || preferredMode == Util::Html)) ||
+               (dataHtml && dataPlain && dataPlain->body().isEmpty())) {
+        if (dataPlain) {
+            part.nodeHelper()->setNodeProcessed(dataPlain, false);
+        }
+        preferredMode = Util::MultipartHtml;
+    } else if (!(preferredMode == Util::MultipartHtml) && dataPlain) {
+        part.nodeHelper()->setNodeProcessed(dataHtml, false);
+        preferredMode = Util::MultipartPlain;
+    }
+    mp->mPreferredMode = preferredMode;
+    return mp;
+}
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