From 301bc234e907c5e4fff67c58ef8546c4e103e5ad Mon Sep 17 00:00:00 2001
From: Ismael Asensio <isma.af@gmail.com>
Date: Sun, 21 Jul 2024 14:18:59 +0200
Subject: [PATCH] feat: add a placeholder for properties filter

The list to add properties can be empty because no entry matches
the filter text or if all the properties have been already added.

Show a placeholder instead of leaving the view just empty
---
 kcms/rules/ui/RulesEditor.qml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/kcms/rules/ui/RulesEditor.qml b/kcms/rules/ui/RulesEditor.qml
index dbd1c3e22..51fc2e1f7 100644
--- a/kcms/rules/ui/RulesEditor.qml
+++ b/kcms/rules/ui/RulesEditor.qml
@@ -257,6 +257,18 @@ KCM.ScrollViewKCM {
                     }
                 }
             }
+
+            Kirigami.PlaceholderMessage {
+                anchors.centerIn: parent
+                width: parent.width - (Kirigami.Units.largeSpacing * 4)
+                visible: overlayModel.count === 0
+                text: {
+                    if (searchField.text.length === 0) {
+                        return i18nc("@info:placeholder", "No properties left to add");
+                    }
+                    return i18nc("@info:placeholder %1 is a filter text introduced by the user", "No properties match \"%1\"", searchField.text);
+                }
+            }
         }
 
         onVisibleChanged: {