function to create deffered value change timer

openpype/tools/settings/settings/lib.py

@@ -0,0 +1,18 @@
+from Qt import QtCore
+
+# Offset of value change trigger in ms
+VALUE_CHANGE_OFFSET_MS = 300
+
+
+def create_deffered_value_change_timer(callback):
+    """Deffer value change callback.
+
+    UI won't trigger all callbacks on each value change but after predefined
+    time. Timer is reset on each start so callback is triggered after user
+    finish editing.
+    """
+    timer = QtCore.QTimer()
+    timer.setSingleShot(True)
+    timer.setInterval(VALUE_CHANGE_OFFSET_MS)
+    timer.timeout.connect(callback)
+    return timer