[themes] Configure presence of default i3bar separators

For each theme & module, it is now possible to configure whether the
default i3bar separators should be drawn or not.

bumblebee/outputs/i3.py

@@ -10,11 +10,15 @@ class i3bar(bumblebee.output.Output):
 
     def add(self, obj):
         theme = obj.theme()
-        self._data.append({
-            "full_text": "%s%s%s" % (theme.prefix(obj), obj.data(), theme.suffix(obj)),
-            "separator": False,
-            "separator_block_width": 0,
-        })
+
+        data = {
+            "full_text": "%s%s%s" % (theme.prefix(obj), obj.data(), theme.suffix(obj))
+        }
+        if theme.default_separators(obj) == False:
+            data["separator"] = False
+            data["separator_block_width"] = 0
+
+        self._data.append(data)
 
     def get(self):
         data = json.dumps(self._data)

bumblebee/theme.py

@@ -25,6 +25,9 @@ class Theme:
 
         return value
 
+    def default_separators(self, obj):
+        return self._gettheme(obj, "default_separators")
+
     def prefix(self, obj):
         return self._gettheme(obj, "prefix")
 

bumblebee/themes/default.json

@@ -7,10 +7,10 @@
 		"prefix": "bat ",
 		"states": {
 			"charging": {
-				"suffix": "+"
+				"suffix": "+ "
 			},
 			"discharging": {
-				"suffix": "-"
+				"suffix": "- "
 			}
 		}
 	},