[core] Add a decorator for never updating a module

core/decorators.py

@@ -1,5 +1,12 @@
 import util.format
 
+def never(init):
+    def call_init(obj, *args, **kwargs):
+        init(obj, *args, **kwargs)
+        if obj.parameter('interval') is None:
+            obj.set('interval', 'never')
+    return call_init
+
 def every(hours=0, minutes=0, seconds=0):
     def decorator_init(init):
         def call_init(obj, *args, **kwargs):

core/output.py

@@ -172,11 +172,14 @@ class i3(object):
             if affected_modules and not module.id in affected_modules:
                 continue
             if not affected_modules and module.next_update:
+                if module.parameter('interval', '') == 'never':
+                    continue
                 if now < module.next_update:
                     continue
             if not redraw_only:
                 module.update_wrapper()
-                module.next_update = now + float(module.parameter('interval', self.__config.interval()))
+                if module.parameter('interval', '')  != 'never':
+                    module.next_update = now + float(module.parameter('interval', self.__config.interval()))
             for widget in module.widgets():
                 self.__content[widget] = widget.full_text()
 

modules/contrib/xkcd.py

@@ -2,16 +2,17 @@
 
 """Opens a random xkcd comic in the browser."""
 
-import bumblebee.input
-import bumblebee.output
-import bumblebee.engine
+import core.module
+import core.widget
+import core.input
+import core.decorators
 
+class Module(core.module.Module):
+    @core.decorators.never
+    def __init__(self, config):
+        super().__init__(config, core.widget.Widget('xkcd'))
+        core.input.register(self, button=core.input.LEFT_MOUSE,
+            cmd="xdg-open https://c.xkcd.com/random/comic/"
+        )
 
-class Module(bumblebee.engine.Module):
-    def __init__(self, engine, config):
-        super(Module, self).__init__(engine, config,
-                bumblebee.output.Widget(full_text="xkcd")
-        )
-        engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
-                cmd="xdg-open https://c.xkcd.com/random/comic/"
-        )
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4