From 332a5c2553db41de777473a1e1be9cd1522c9496 Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Thu, 31 Mar 2016 18:54:41 +0100
Subject: Move the src directory to poezio, for better cython compatibility.

---
 poezio/events.py | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 poezio/events.py

(limited to 'poezio/events.py')

diff --git a/poezio/events.py b/poezio/events.py
new file mode 100644
index 00000000..15ef3e35
--- /dev/null
+++ b/poezio/events.py
@@ -0,0 +1,87 @@
+#
+# This file is part of Poezio.
+#
+# Poezio is free software: you can redistribute it and/or modify
+# it under the terms of the zlib license. See the COPYING file.
+
+"""
+Defines the EventHandler class.
+The list of available events is here:
+http://poezio.eu/doc/en/plugins.html#_poezio_events
+"""
+
+class EventHandler(object):
+    """
+    A class keeping a list of possible events that are triggered
+    by poezio. You (a plugin for example) can add an event handler
+    associated with an event name, and whenever that event is triggered,
+    the callback is called.
+    """
+    def __init__(self):
+        self.events = {
+            'highlight': [],
+            'muc_say': [],
+            'muc_say_after': [],
+            'conversation_say': [],
+            'conversation_say_after': [],
+            'private_say': [],
+            'private_say_after': [],
+            'conversation_msg': [],
+            'private_msg': [],
+            'muc_msg': [],
+            'conversation_chatstate': [],
+            'muc_chatstate': [],
+            'private_chatstate': [],
+            'normal_presence': [],
+            'muc_presence': [],
+            'muc_join': [],
+            'joining_muc': [],
+            'changing_nick': [],
+            'muc_kick': [],
+            'muc_nickchange': [],
+            'muc_ban': [],
+            'send_normal_presence': [],
+            'ignored_private': [],
+            'tab_change': [],
+            }
+
+    def add_event_handler(self, name, callback, position=0):
+        """
+        Add a callback to a given event.
+        Note that if that event name doesn’t exist, it just returns False.
+        If it was successfully added, it returns True
+        position: 0 means insert at the beginning, -1 means end
+        """
+        if name not in self.events:
+            return False
+
+        if position >= 0:
+            self.events[name].insert(position, callback)
+        else:
+            self.events[name].append(callback)
+
+        return True
+
+    def trigger(self, name, *args, **kwargs):
+        """
+        Call all the callbacks associated to the given event name.
+        """
+        callbacks = self.events.get(name, None)
+        if callbacks is None:
+            return
+        for callback in callbacks:
+            callback(*args, **kwargs)
+
+    def del_event_handler(self, name, callback):
+        """
+        Remove the callback from the list of callbacks of the given event
+        """
+        if not name:
+            for event in self.events:
+                while callback in self.events[event]:
+                    self.events[event].remove(callback)
+            return True
+        else:
+            if callback in self.events[name]:
+                self.events[name].remove(callback)
+
-- 
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