MessageViewer: viewerprivate add reference to IdentityManager.

In order to support Autocrypt we need to know if the corresponding
identity for an email wants Autocrypt support or not.

CMakeLists.txt

 cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
-set(PIM_VERSION "5.16.40")
+set(PIM_VERSION "5.16.41")
 
 if (POLICY CMP0053)
     cmake_policy(SET CMP0053 NEW)
@@ -23,7 +23,7 @@ set(AKONADICONTACT_LIB_VERSION "5.16.40")
 set(AKONADI_VERSION "5.16.40")
 set(GRANTLEETHEME_LIB_VERSION "5.16.40")
 set(GRAVATAR_LIB_VERSION "5.16.40")
-set(IDENTITYMANAGEMENT_LIB_VERSION "5.16.40")
+set(IDENTITYMANAGEMENT_LIB_VERSION "5.16.41")
 set(KLDAP_LIB_VERSION "5.16.40")
 set(KMAILTRANSPORT_LIB_VERSION "5.16.40")
 set(KMBOX_LIB_VERSION "5.16.40")

messageviewer/src/CMakeLists.txt

@@ -348,6 +348,7 @@ target_link_libraries(KF5MessageViewer
     KF5::Mbox
     KF5::PimTextEdit
     KF5::Gravatar
+    KF5::IdentityManagement
     KF5::IconThemes
     KF5::I18n
     KF5::KIOFileWidgets

messageviewer/src/viewer/viewer.cpp

@@ -767,4 +767,10 @@ void Viewer::showDevelopmentTools()
     d->slotShowDevelopmentTools();
 }
 
+void Viewer::setIdentityManager(KIdentityManagement::IdentityManager *ident)
+{
+    Q_D(Viewer);
+    d->setIdentityManager(ident);
+}
+
 }

messageviewer/src/viewer/viewer.h

@@ -24,6 +24,10 @@ class Item;
 class ItemFetchJob;
 }
 
+namespace KIdentityManagement {
+class IdentityManager;
+}
+
 class KActionCollection;
 class QAction;
 class KToggleAction;
@@ -340,6 +344,8 @@ public:
     void exportToPdf(const QString &fileName);
 
     void showDevelopmentTools();
+
+    void setIdentityManager(KIdentityManagement::IdentityManager *ident);
 Q_SIGNALS:
     void moveMessageToTrash();
     void pageIsScrolledToBottom(bool);

messageviewer/src/viewer/viewer_p.cpp

@@ -85,6 +85,9 @@
 #include <AkonadiCore/attributefactory.h>
 #include <Akonadi/KMime/MessageParts>
 
+#include <KIdentityManagement/Identity>
+#include <KIdentityManagement/IdentityManager>
+
 //own includes
 #include "widgets/attachmentdialog.h"
 #include "csshelper.h"
@@ -3151,3 +3154,29 @@ DKIMViewerMenu *ViewerPrivate::dkimViewerMenu()
     }
     return nullptr;
 }
+
+bool ViewerPrivate::isAutocryptEnabled(const KMime::Content *content)
+{
+    if (!mIdentityManager) {
+        return false;
+    }
+
+    QString addresses;
+    if (content->headerByType("to")) {
+        addresses += content->headerByType("to")->asUnicodeString();
+    }
+
+    if (content->headerByType("cc")) {
+        if (!addresses.isEmpty()) {
+            addresses += QLatin1String(", ");
+        }
+        addresses += content->headerByType("cc")->asUnicodeString();
+    }
+    const auto id = mIdentityManager->identityForAddress(addresses);
+    return id.autocryptEnabled();
+}
+
+void ViewerPrivate::setIdentityManager(KIdentityManagement::IdentityManager* ident)
+{
+    mIdentityManager = ident;
+}

messageviewer/src/viewer/viewer_p.h

@@ -46,6 +46,10 @@ class QSplitter;
 class QModelIndex;
 class QPrinter;
 
+namespace KIdentityManagement {
+class IdentityManager;
+}
+
 namespace KPIMTextEdit {
 class SlideContainer;
 class TextToSpeechWidget;
@@ -427,6 +431,10 @@ public:
     void hasMultiMessages(bool messages);
     void updateShowMultiMessagesButton(bool enablePreviousButton, bool enableNextButton);
     MessageViewer::DKIMViewerMenu *dkimViewerMenu();
+
+    Q_REQUIRED_RESULT bool isAutocryptEnabled(const KMime::Content *content);
+    void setIdentityManager(KIdentityManagement::IdentityManager *ident);
+
 private Q_SLOTS:
     void slotActivatePlugin(MessageViewer::ViewerPluginInterface *interface);
     void slotModifyItemDone(KJob *job);
@@ -690,6 +698,7 @@ public:
     MessageViewer::DKIMWidgetInfo *mDkimWidgetInfo = nullptr;
     MessageViewer::DKIMViewerMenu *mDkimViewerMenu = nullptr;
     MessageViewer::MessageViewerRenderer *mMessageViewerRenderer = nullptr;
+    KIdentityManagement::IdentityManager *mIdentityManager = nullptr;
 };
 }