1 files changed, 47 insertions, 0 deletions
diff --git a/examples/qml/tutorials/extending-qml-advanced/binding/happybirthdaysong.py b/examples/qml/tutorials/extending-qml-advanced/binding/happybirthdaysong.py
new file mode 100644
index 000000000..59ebfe4c6
--- /dev/null
+++ b/examples/qml/tutorials/extending-qml-advanced/binding/happybirthdaysong.py
@@ -0,0 +1,47 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtCore import QTimer, Property, Slot
+from PySide6.QtQml import QmlElement, QPyQmlPropertyValueSource
+
+# To be used on the @QmlElement decorator
+# (QML_IMPORT_MINOR_VERSION is optional)
+QML_IMPORT_NAME = "People"
+QML_IMPORT_MAJOR_VERSION = 1
+
+
+@QmlElement
+class HappyBirthdaySong(QPyQmlPropertyValueSource):
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        self.m_target = None
+        self.m_name = ""
+        self.m_line = -1
+        self.m_lyrics = []
+
+        self.m_timer = QTimer(self)
+        self.m_timer.timeout.connect(self.advance)
+        self.m_timer.start(1000)
+
+    def setTarget(self, property):
+        self.m_target = property
+
+    @Property(str)
+    def name(self):
+        return self.m_name
+
+    @name.setter
+    def name(self, n):
+        self.m_name = n
+        self.m_lyrics = ["Happy birthday to you,",
+                         "Happy birthday to you,",
+                         f"Happy birthday dear {self.m_name},",
+                         "Happy birthday to you!",
+                         ""]
+
+    @Slot()
+    def advance(self):
+        self.m_line = (self.m_line + 1) % len(self.m_lyrics)
+        self.m_target.write(self.m_lyrics[self.m_line])