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Remove smooth scrolling 

GTK3+ does smooth scrolling in ScrolledWindows on its own
This commit is contained in:
Philipp Hörist 2017-03-06 14:46:51 +01:00
parent 3f38ccc3a5
commit 1e06db9fa6
3 changed files with 3 additions and 75 deletions
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5
src/chat_control_base.py
View File

@ -1068,15 +1068,10 @@ class ChatControlBase(MessageControl, ChatCommandProcessor, CommandTools):
if self.conv_textview.at_the_end():
# we are at the end
self.conv_textview.bring_scroll_to_end(-18)
else:
self.conv_textview.bring_scroll_to_end(-18, use_smooth=False)
self.was_at_the_end = (adjustment.get_upper() - adjustment.get_value()\
- adjustment.get_page_size()) < 18
def on_conversation_vadjustment_value_changed(self, adjustment):
# stop automatic scroll when we manually scroll
if not self.conv_textview.auto_scrolling:
self.conv_textview.stop_scrolling()
self.was_at_the_end = (adjustment.get_upper() - adjustment.get_value() \
- adjustment.get_page_size()) < 18
if self.resource:

1
src/common/config.py
View File

@ -279,7 +279,6 @@ class Config:
'hide_groupchat_occupants_list': [opt_bool, False, _('Hides the group chat occupants list in group chat window.')],
'chat_merge_consecutive_nickname': [opt_bool, False, _('In a chat, show the nickname at the beginning of a line only when it\'s not the same person talking than in previous message.')],
'chat_merge_consecutive_nickname_indent': [opt_str, ' ', _('Indentation when using merge consecutive nickname.')],
'use_smooth_scrolling': [opt_bool, True, _('Smooth scroll message in conversation window')],
'gc_nicknames_colors': [ opt_str, '#4e9a06:#f57900:#ce5c00:#3465a4:#204a87:#75507b:#5c3566:#c17d11:#8f5902:#ef2929:#cc0000:#a40000', _('List of colors, separated by ":", that will be used to color nicknames in group chats.'), True ],
'ctrl_tab_go_to_next_composing': [opt_bool, True, _('Ctrl-Tab go to next composing tab when none is unread.')],
'confirm_metacontacts': [ opt_str, '', _('Should we show the confirm metacontacts creation dialog or not? Empty string means we never show the dialog.')],

72
src/conversation_textview.py
View File

@ -216,9 +216,6 @@ class ConversationTextview(GObject.GObject):
# last_received_message_id[name] = (msg_stanza_id, line_start_mark)
self.last_received_message_id = {}
# It's True when we scroll in the code, so we can detect scroll from user
self.auto_scrolling = False
# connect signals
id_ = self.tv.connect('populate_popup', self.on_textview_populate_popup)
self.handlers[id_] = self.tv
@ -325,7 +322,6 @@ class ConversationTextview(GObject.GObject):
# holds a mark at the end of --- line
self.focus_out_end_mark = None
self.smooth_id = None
self.just_cleared = False
def query_tooltip(self, widget, x_pos, y_pos, keyboard_mode, tooltip):
@ -406,79 +402,26 @@ class ConversationTextview(GObject.GObject):
return True
return False
# Smooth scrolling inspired by Pidgin code
def smooth_scroll(self):
parent = self.tv.get_parent()
if not parent:
return False
vadj = parent.get_vadjustment()
max_val = vadj.get_upper() - vadj.get_page_size() + 1
cur_val = vadj.get_value()
# scroll by 1/3rd of remaining distance
onethird = cur_val + ((max_val - cur_val) / 3.0)
self.auto_scrolling = True
vadj.set_value(onethird)
self.auto_scrolling = False
if max_val - onethird < 0.01:
self.smooth_id = None
self.smooth_scroll_timer.cancel()
return False
return True
def smooth_scroll_timeout(self):
GLib.idle_add(self.do_smooth_scroll_timeout)
return
def do_smooth_scroll_timeout(self):
if not self.smooth_id:
# we finished scrolling
return
GLib.source_remove(self.smooth_id)
self.smooth_id = None
parent = self.tv.get_parent()
if parent:
vadj = parent.get_vadjustment()
self.auto_scrolling = True
vadj.set_value(vadj.get_upper() - vadj.get_page_size() + 1)
self.auto_scrolling = False
def smooth_scroll_to_end(self):
if self.smooth_id is not None: # already scrolling
return False
self.smooth_id = GLib.timeout_add(self.SCROLL_DELAY,
self.smooth_scroll)
self.smooth_scroll_timer = Timer(self.MAX_SCROLL_TIME,
self.smooth_scroll_timeout)
self.smooth_scroll_timer.start()
return False
def scroll_to_end(self):
parent = self.tv.get_parent()
buffer_ = self.tv.get_buffer()
end_mark = buffer_.get_mark('end')
if not end_mark:
return False
self.auto_scrolling = True
self.tv.scroll_to_mark(end_mark, 0, True, 0, 1)
adjustment = parent.get_hadjustment()
adjustment.set_value(0)
self.auto_scrolling = False
return False # when called in an idle_add, just do it once
def bring_scroll_to_end(self, diff_y=0, use_smooth=None):
def bring_scroll_to_end(self, diff_y=0):
''' scrolls to the end of textview if end is not visible '''
if use_smooth is None:
use_smooth = gajim.config.get('use_smooth_scrolling')
buffer_ = self.tv.get_buffer()
end_iter = buffer_.get_end_iter()
end_rect = self.tv.get_iter_location(end_iter)
visible_rect = self.tv.get_visible_rect()
# scroll only if expected end is not visible
if end_rect.y >= (visible_rect.y + visible_rect.height + diff_y):
if use_smooth:
GLib.idle_add(self.smooth_scroll_to_end)
else:
GLib.idle_add(self.scroll_to_end_iter)
GLib.idle_add(self.scroll_to_end_iter)
def scroll_to_end_iter(self):
buffer_ = self.tv.get_buffer()
@ -488,12 +431,6 @@ class ConversationTextview(GObject.GObject):
self.tv.scroll_to_iter(end_iter, 0, False, 1, 1)
return False # when called in an idle_add, just do it once
def stop_scrolling(self):
if self.smooth_id:
GLib.source_remove(self.smooth_id)
self.smooth_id = None
self.smooth_scroll_timer.cancel()
def correct_message(self, correct_id, kind, name):
allowed = True
if kind == 'incoming':
@ -1372,10 +1309,7 @@ class ConversationTextview(GObject.GObject):
if at_the_end or kind == 'outgoing':
# we are at the end or we are sending something
# scroll to the end (via idle in case the scrollbar has appeared)
if gajim.config.get('use_smooth_scrolling'):
GLib.idle_add(self.smooth_scroll_to_end)
else:
GLib.idle_add(self.scroll_to_end)
GLib.idle_add(self.scroll_to_end)
self.just_cleared = False
buffer_.end_user_action()