Show warning when invalid command is entered

Fixes #1363

Please note that this doesn't prompt when you try to send a message with a bad command.

3 files changed, 29 insertions, 4 deletions

diff --git a/resources/qml/MessageInput.qml b/resources/qml/MessageInput.qml
index f31123e5..f6fe03c5 100644
--- a/resources/qml/MessageInput.qml
+++ b/resources/qml/MessageInput.qml
@@ -13,6 +13,8 @@ import im.nheko 1.0
 Rectangle {
     id: inputBar
 
+    readonly property string text: messageInput.text
+
     color: Nheko.colors.window
     Layout.fillWidth: true
     Layout.preferredHeight: row.implicitHeight
diff --git a/resources/qml/NotificationWarning.qml b/resources/qml/MessageInputWarning.qml
index 13d2cb23..c2db2daa 100644
--- a/resources/qml/NotificationWarning.qml
+++ b/resources/qml/MessageInputWarning.qml
@@ -8,14 +8,20 @@ import QtQuick.Layouts 1.2
 import im.nheko 1.0
 
 Item {
-    implicitHeight: warningRect.visible ? warningDisplay.implicitHeight + 2 * Nheko.paddingSmall : 0
+    id: warningRoot
+
+    required property string text
+    required property bool isVisible
+
+    implicitHeight: isVisible ? warningDisplay.implicitHeight + 2 * Nheko.paddingSmall : 0
     height: implicitHeight
     Layout.fillWidth: true
+    Layout.margins: isVisible ? Nheko.paddingSmall : 0
 
     Rectangle {
         id: warningRect
 
-        visible: (room && room.permissions.canPingRoom() && room.input.containsAtRoom)
+        visible: warningRoot.isVisible
         // TODO: Qt.alpha() would make more sense but it wasn't working...
         color: Qt.rgba(Nheko.theme.error.r, Nheko.theme.error.g, Nheko.theme.error.b, 0.3)
         border.width: 1
@@ -31,7 +37,7 @@ Item {
             anchors.verticalCenter: parent.verticalCenter
             anchors.margins: Nheko.paddingSmall
             color: Nheko.colors.text
-            text: qsTr("You are about to notify the whole room")
+            text: warningRoot.text
             textFormat: Text.PlainText
         }
 
diff --git a/resources/qml/TimelineView.qml b/resources/qml/TimelineView.qml
index e836f60f..5c982270 100644
--- a/resources/qml/TimelineView.qml
+++ b/resources/qml/TimelineView.qml
@@ -153,13 +153,30 @@ Item {
         UploadBox {
         }
 
-        NotificationWarning {
+        MessageInputWarning {
+            text: qsTr("You are about to notify the whole room")
+            isVisible: (room && room.permissions.canPingRoom() && room.input.containsAtRoom)
+        }
+
+        MessageInputWarning {
+            text: qsTr("The command /%1 is not recognized and will be sent as part of your message").arg(Nheko.getCommandFromText(input.text))
+            isVisible: {
+                if (!input.text)
+                    return false;
+
+                let command = Nheko.getCommandFromText(input.text);
+                if (Nheko.isInvalidCommand(command) && ("/" + command !== input.text))
+                    return true;
+                else
+                    return false;
+            }
         }
 
         ReplyPopup {
         }
 
         MessageInput {
+            id: input
         }
 
     }