code release

xlib/mp/csw/Text.py

@@ -0,0 +1,67 @@
+from xlib.python import EventListener
+
+from .CSWBase import ControlClient, ControlHost
+
+
+class _TextBase:
+    def __init__(self):
+        self._text = None
+        self._on_text_evl = EventListener()
+
+        self._call_on_msg('text', self._on_msg_text)
+
+    def _on_msg_text(self, text):
+        self._set_text(text)
+
+    def _send_text(self):
+        self._send_msg('text', self._text)
+
+    def _set_text(self, text : str):
+        if text is not None and not isinstance(text, str):
+            raise ValueError('text must be str or None')
+
+        if self._text != text:
+            self._text = text
+            self._on_text_evl.call(text)
+            return True
+        return False
+
+    def call_on_text(self, func_or_list):
+        """
+        Call when the text is changed
+
+         func(text : Union[str,None])
+        """
+        self._on_text_evl.add(func_or_list)
+
+    def set_text(self, text : str):
+        if self._set_text(text):
+            self._send_text()
+
+    def get_text(self): return self._text
+
+class Text:
+    """
+    Text control.
+
+    Values:
+            None  : uninitialized state
+            str   : value
+    """
+    class Host(ControlHost, _TextBase):
+        def __init__(self):
+            ControlHost.__init__(self)
+            _TextBase.__init__(self)
+
+        def _on_msg_text(self, text):
+            if self.is_enabled():
+                _TextBase._on_msg_text(self, text)
+            self._send_text()
+
+    class Client(ControlClient, _TextBase):
+        def __init__(self):
+            ControlClient.__init__(self)
+            _TextBase.__init__(self)
+
+        def _on_reset(self):
+            self._set_text(None)