Updates, additions, minor improvements

src/utils/event_system.py

@@ -0,0 +1,59 @@
+# Python imports
+
+# Lib imports
+
+# Application imports
+
+
+
+
+class EventSystem:
+    """ Inheret IPCServerMixin. Create an pub/sub systems. """
+
+    def __init__(self):
+        # NOTE: The format used is list of ['who', target, (data,)] Where:
+        #             who is the sender or target ID and is used for context and control flow,
+        #             method_target is the method to call,
+        #             data is the method parameters OR message data to give
+        #       Where data may be any kind of data
+        self._gui_events    = []
+        self._module_events = []
+
+
+    # Makeshift "events" system FIFO
+    def _pop_gui_event(self) -> None:
+        if len(self._gui_events) > 0:
+            return self._gui_events.pop(0)
+        return None
+
+    def _pop_module_event(self) -> None:
+        if len(self._module_events) > 0:
+            return self._module_events.pop(0)
+        return None
+
+
+    def push_gui_event(self, event: list) -> None:
+        if len(event) == 3:
+            self._gui_events.append(event)
+            return None
+
+        raise Exception("Invald event format! Please do:  ['sender_id': str, method_target: method, (data,): any]")
+
+    def push_module_event(self, event: list) -> None:
+        if len(event) == 3:
+            self._module_events.append(event)
+            return None
+
+        raise Exception("Invald event format! Please do:  ['target_id': str, method_target: method, (data,): any]")
+
+    def read_gui_event(self) -> list:
+        return self._gui_events[0] if self._gui_events else None
+
+    def read_module_event(self) -> list:
+        return self._module_events[0] if self._module_events else None
+
+    def consume_gui_event(self) -> list:
+        return self._pop_gui_event()
+
+    def consume_module_event(self) -> list:
+        return self._pop_module_event()