1 files changed, 46 insertions, 0 deletions
diff --git a/plugins/display_corrections.py b/plugins/display_corrections.py
new file mode 100644
index 00000000..9937387f
--- /dev/null
+++ b/plugins/display_corrections.py
@@ -0,0 +1,46 @@
+# A plugin that adds the /display_corrections command, to view the previous
+# versions of a corrected message.
+
+from plugin import BasePlugin
+from common import shell_split
+import tabs
+
+class Plugin(BasePlugin):
+    def init(self):
+        usage = 'Usage: /display_corrections <number>\nDisplay_corrections: display all the corrections of the number-th last corrected message.'
+        for tab_type in (tabs.MucTab, tabs.PrivateTab, tabs.ConversationTab):
+            self.add_tab_command(tab_type, 'display_corrections', self.command_display_corrections, usage)
+
+    def find_corrected(self, nb):
+        messages = self.core.get_conversation_messages()
+        if not messages:
+            return None
+        for message in messages[::-1]:
+            if message.old_message:
+                if nb == 1:
+                    return message
+                else:
+                    nb -= 1
+        return None
+
+    def command_display_corrections(self, args):
+        args = shell_split(args)
+        if len(args) == 1:
+            try:
+                nb = int(args[0])
+            except:
+                return self.core.command_help('display_corrections')
+        else:
+            nb = 1
+        message = self.find_corrected(nb)
+        if message:
+            display = []
+            while message:
+                display.append('%s %s%s%s %s' % (message.str_time, '* ' if message.me else '', message.nickname, '' if message.me else '>', message.txt))
+                message = message.old_message
+            self.core.information('Older versions:\n' + '\n'.join(display[::-1]), 'Info')
+        else:
+            self.core.information('No corrected message found.', 'Warning')
+
+    def cleanup(self):
+        del self.config