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[core/decorators] use difflib to make scrolling reset detection fuzzy

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when scrolling text that is subject to *slight* changes (e.g. a song
that contains the current position within the song), allow for slight
variations in the displayed text.

fixes #629
This commit is contained in:
tobi-wan-kenobi 2020-05-14 20:35:09 +02:00
parent 0238d59f8b
commit 526560ea54
2 changed files with 16 additions and 1 deletions
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6
bumblebee_status/core/decorators.py
View file

@ -1,3 +1,4 @@
import difflib
import util.format
@ -28,7 +29,10 @@ def scrollable(func):
if not text:
return text
if text != widget.get("__content__", text):
if (
difflib.SequenceMatcher(a=text, b=widget.get("__content__", text)).ratio()
< 0.9
):
widget.set("scrolling.start", 0)
widget.set("scrolling.direction", "right")
widget.set("__content__", text)

11
tests/core/test_decorators.py
View file

@ -70,5 +70,16 @@ class config(unittest.TestCase):
self.module.text = "wxyz"
self.assertEqual("wx", self.module.get(self.widget))
def test_minimum_changed_data(self):
self.module.text = "this is a sample song (0:00)"
self.module.set("scrolling.width", 10)
self.assertEqual(self.module.text[0:10], self.module.get(self.widget))
self.module.text = "this is a sample song (0:01)"
self.assertEqual(self.module.text[1:11], self.module.get(self.widget))
self.module.text = "this is a sample song (0:12)"
self.assertEqual(self.module.text[2:12], self.module.get(self.widget))
self.module.text = "this is a different song (0:12)"
self.assertEqual(self.module.text[0:10], self.module.get(self.widget))
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