[modules] re-enable title

modules/contrib/title.py

@@ -0,0 +1,85 @@
+# pylint: disable=C0111,R0903
+
+"""Displays focused i3 window title.
+
+Requirements:
+    * i3ipc
+
+Parameters:
+    * title.max : Maximum character length for title before truncating. Defaults to 64.
+    * title.placeholder : Placeholder text to be placed if title was truncated. Defaults to "...".
+    * title.scroll : Boolean flag for scrolling title. Defaults to False
+"""
+
+import threading
+
+try:
+    import i3ipc
+except ImportError:
+    pass
+
+import bumblebee.util
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+
+from bumblebee.output import scrollable
+
+_no_title = "n/a"
+
+class Module(bumblebee.engine.Module):
+    """Window title module."""
+
+    def __init__(self, engine, config):
+        super(Module, self).__init__(
+            engine,
+            config
+        )
+
+        # parsing of parameters
+        self._scroll = bumblebee.util.asbool(self.parameter("scroll", False))
+        self._max = int(self.parameter("max", 64))
+        self._placeholder = self.parameter("placeholder", "...")
+
+        # set output of the module
+        self.widgets(bumblebee.output.Widget(full_text=
+            self._scrolling_focused_title if self._scroll else self._focused_title))
+
+        # create a connection with i3ipc
+        try:
+            self._i3 = i3ipc.Connection()
+            # event is called both on focus change and title change
+            self._i3.on("window", lambda _p_i3, _p_e: self._pollTitle())
+            # begin listening for events
+            threading.Thread(target=self._i3.main).start()
+        except:
+            pass
+
+        # initialize the first title
+        self._pollTitle()
+
+    def _focused_title(self, widget):
+        return self._title
+
+    @scrollable
+    def _scrolling_focused_title(self, widget):
+        return self._full_title
+
+    def _pollTitle(self):
+        """Updating current title."""
+        try:
+            self._full_title = self._i3.get_tree().find_focused().name
+        except:
+            self._full_title = _no_title
+        if self._full_title is None:
+            self._full_title = _no_title
+
+        if not self._scroll:
+            # cut the text if it is too long
+            if len(self._full_title) > self._max:
+                self._title = self._full_title[0:self._max - len(self._placeholder)]
+                self._title = "{}{}".format(self._title, self._placeholder)
+            else:
+                self._title = self._full_title
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4