From d7ce0b74680984143c227916af50dfb66598206e Mon Sep 17 00:00:00 2001
From: Tobias Fella <fella@posteo.de>
Date: Wed, 18 Aug 2021 21:54:06 +0200
Subject: [PATCH] Show a placeholder for encrypted messages

Tells the user that the message could not be decrypted because the key
was not shared with the device. At the moment, this is technically not
completely correct, but it will be when libQuotient supports reading
encrypted messages
---
 .../Component/Timeline/EncryptedDelegate.qml  | 19 +++++++++++++++++++
 imports/NeoChat/Component/Timeline/qmldir     |  1 +
 imports/NeoChat/Page/RoomPage.qml             | 16 ++++++++++++++++
 res.qrc                                       |  1 +
 src/messageeventmodel.cpp                     |  3 +++
 5 files changed, 40 insertions(+)
 create mode 100644 imports/NeoChat/Component/Timeline/EncryptedDelegate.qml

diff --git a/imports/NeoChat/Component/Timeline/EncryptedDelegate.qml b/imports/NeoChat/Component/Timeline/EncryptedDelegate.qml
new file mode 100644
index 000000000..80504af19
--- /dev/null
+++ b/imports/NeoChat/Component/Timeline/EncryptedDelegate.qml
@@ -0,0 +1,19 @@
+// SPDX-FileCopyrightText: 2021 Tobias Fella <fella@posteo.de>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+import QtQuick 2.15
+import QtQuick.Controls 2.15
+
+import org.kde.kirigami 2.15 as Kirigami
+import org.kde.neochat 1.0
+
+TextEdit {
+    text: i18n("This message is encrypted and the sender has not shared the key with this device.")
+    color: Kirigami.Theme.disabledTextColor
+    font.pointSize: Kirigami.Theme.defaultFont.pointSize
+    selectByMouse: !Kirigami.Settings.isMobile
+    readOnly: true
+    wrapMode: Text.WordWrap
+    textFormat: Text.RichText
+    width: messageContainer.bubbleMaxWidth
+}
diff --git a/imports/NeoChat/Component/Timeline/qmldir b/imports/NeoChat/Component/Timeline/qmldir
index c70f8d63a..96d442c82 100644
--- a/imports/NeoChat/Component/Timeline/qmldir
+++ b/imports/NeoChat/Component/Timeline/qmldir
@@ -8,3 +8,4 @@ FileDelegate 1.0 FileDelegate.qml
 VideoDelegate 1.0 VideoDelegate.qml
 ReactionDelegate 1.0 ReactionDelegate.qml
 AudioDelegate 1.0 AudioDelegate.qml
+EncryptedDelegate 1.0 EncryptedDelegate.qml
\ No newline at end of file
diff --git a/imports/NeoChat/Page/RoomPage.qml b/imports/NeoChat/Page/RoomPage.qml
index 38806ec2c..e0e7a058e 100644
--- a/imports/NeoChat/Page/RoomPage.qml
+++ b/imports/NeoChat/Page/RoomPage.qml
@@ -557,6 +557,22 @@ Kirigami.ScrollablePage {
                 }
             }
 
+            DelegateChoice {
+                roleValue: "encrypted"
+                delegate: TimelineContainer {
+                    id: encryptedContainer
+                    width: messageListView.width
+                    isLoaded: timelineDelegateChooser.delegateLoaded
+
+                    innerObject: EncryptedDelegate {
+                        Layout.fillWidth: Config.compactLayout
+                        Layout.maximumWidth: encryptedContainer.bubbleMaxWidth
+                        Layout.rightMargin: Kirigami.Units.largeSpacing
+                        Layout.leftMargin: Config.showAvatarInTimeline ? Kirigami.Units.largeSpacing : 0
+                    }
+                }
+            }
+
             DelegateChoice {
                 roleValue: "readMarker"
                 delegate: QQC2.ItemDelegate {
diff --git a/res.qrc b/res.qrc
index e415847ba..0ea107c60 100644
--- a/res.qrc
+++ b/res.qrc
@@ -40,6 +40,7 @@
         <file>imports/NeoChat/Component/Timeline/AudioDelegate.qml</file>
         <file>imports/NeoChat/Component/Timeline/FileDelegate.qml</file>
         <file>imports/NeoChat/Component/Timeline/ImageDelegate.qml</file>
+        <file>imports/NeoChat/Component/Timeline/EncryptedDelegate.qml</file>
         <file>imports/NeoChat/Component/Login/qmldir</file>
         <file>imports/NeoChat/Component/Login/LoginStep.qml</file>
         <file>imports/NeoChat/Component/Login/Login.qml</file>
diff --git a/src/messageeventmodel.cpp b/src/messageeventmodel.cpp
index ba46142cb..8bbecc730 100644
--- a/src/messageeventmodel.cpp
+++ b/src/messageeventmodel.cpp
@@ -490,6 +490,9 @@ QVariant MessageEventModel::data(const QModelIndex &idx, int role) const
         if (evt.isStateEvent()) {
             return "state";
         }
+        if (is<const EncryptedEvent>(evt)) {
+            return "encrypted";
+        }
 
         return "other";
     }