Autoclose completer when space is pressed and no suggestion available

resources/qml/Completer.qml

@@ -11,6 +11,7 @@ Popup {
     property string completerName
     property var completer
     property bool bottomToTop: true
+    property alias count: listView.count
 
     signal completionClicked(string completion)
 

resources/qml/MessageInput.qml

@@ -162,6 +162,9 @@ Rectangle {
                     if (event.matches(StandardKey.Paste)) {
                         TimelineManager.timeline.input.paste(false);
                         event.accepted = true;
+                    } else if (event.key == Qt.Key_Space) {
+                        if (popup.opened && popup.count <= 0)
+                            popup.close()
                     } else if (event.modifiers == Qt.ControlModifier && event.key == Qt.Key_U) {
                         messageInput.clear();
                     } else if (event.modifiers == Qt.ControlModifier && event.key == Qt.Key_P) {

resources/qml/TimelineView.qml

@@ -35,7 +35,7 @@ Page {
         colors: palette
 
         model: EmojiProxyModel {
-            category: EmojiCategory.People
+            category: Emoji.Category.People
 
             sourceModel: EmojiModel {
             }