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Fix Autoscroll (for real this time) 

Fixes #8992
This commit is contained in:
Philipp Hörist 2018-03-25 00:22:40 +01:00
parent 6207e607a8
commit af9552d704
1 changed files with 19 additions and 2 deletions
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21
gajim/chat_control_base.py
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@ -1268,9 +1268,26 @@ class ChatControlBase(MessageControl, ChatCommandProcessor, CommandTools):
return
else:
# On scrolliung UP disable autoscroll
# has_direction is on some systems always False
# so we cant use it
# get_scroll_direction() sets has_direction only TRUE
# if smooth scrolling is deactivated. If we have smooth
# smooth scrolling we have to use get_scroll_deltas()
has_direction, direction = event.get_scroll_direction()
if not has_direction:
direction = None
smooth, delta_x, delta_y = event.get_scroll_deltas()
if smooth:
if delta_y < 0:
direction = Gdk.ScrollDirection.UP
elif delta_y > 0:
direction = Gdk.ScrollDirection.DOWN
elif delta_x < 0:
direction = Gdk.ScrollDirection.LEFT
elif delta_x > 0:
direction = Gdk.ScrollDirection.RIGHT
else:
app.log('autoscroll').warning(
'Scroll directions cant be determined')
if direction != Gdk.ScrollDirection.UP:
return
# Check if we have a Scrollbar