only notify search change when widget was inactive

src/apprt/gtk/class/search_overlay.zig

@@ -223,6 +223,13 @@ pub const SearchOverlay = extern struct {
         gtk.Widget.initTemplate(self.as(gtk.Widget));
     }
 
+    /// Update search contents when widget is activated
+    pub fn updateSearch(self: *Self) void {
+        const priv = self.private();
+        const text = priv.search_entry.as(gtk.Editable).getText();
+        signals.@"search-changed".impl.emit(self, null, .{text}, null);
+    }
+
     /// Grab focus on the search entry and select all text.
     pub fn grabFocus(self: *Self) void {
         const priv = self.private();
@@ -231,10 +238,6 @@ pub const SearchOverlay = extern struct {
         // Select all text in the search entry field. -1 is distance from
         // the end, causing the entire text to be selected.
         priv.search_entry.as(gtk.Editable).selectRegion(0, -1);
-
-        // update search state with the active text
-        const text = priv.search_entry.as(gtk.Editable).getText();
-        signals.@"search-changed".impl.emit(self, null, .{text}, null);
     }
 
     /// Set the total number of search matches.

src/apprt/gtk/class/surface.zig

@@ -1964,6 +1964,17 @@ pub const Surface = extern struct {
             SearchOverlay.properties.active.name,
             &value,
         );
+
+        var is_active = gobject.ext.Value.newFrom(false);
+        defer is_active.unset();
+        gobject.Object.getProperty(
+            priv.search_overlay.as(gobject.Object),
+            SearchOverlay.properties.active.name,
+            &is_active
+        );
+        if (active and !is_active) {
+            priv.search_overlay.updateSearch();
+        }
         if (active) {
             priv.search_overlay.grabFocus();
         }