def history_up(self):
"""Called when the history up command is required"""
if self.textview.is_focus():
tb = self.textbuffer
command = tb.get_tag_table().lookup(COMMAND)
insert = tb.get_insert()
it = tb.get_iter_at_mark(insert)
it.backward_to_tag_toggle(command)
if it.ends_tag(command):
it.backward_to_tag_toggle(command)
self.textbuffer.place_cursor(it)
self.textview.scroll_mark_onscreen(insert)
elif self.sourceview.is_focus():
tb = self.textbuffer
sb = self.sourcebuffer
command = tb.get_tag_table().lookup(COMMAND)
if self.sb_changed:
if sb.get_end_iter().get_line() != 0:
# Don't allow prefixes of more than one line
beep()
return
self.hist_prefix = get_text(sb, sb.get_start_iter(),
sb.get_end_iter())
self.hist_count = {}
self._track_change()
tb.move_mark(self.hist_mark, tb.get_end_iter())
it = tb.get_iter_at_mark(self.hist_mark)
if it.is_start():
beep()
return
while True:
it.backward_to_tag_toggle(command)
if it.ends_tag(command):
it.backward_to_tag_toggle(command)
if not it.begins_tag(command):
beep()
break
first_line = self.iter_get_command(
it, only_first_line=True).strip()
if (first_line and first_line.startswith(self.hist_prefix) and
(len(first_line) > 2 or self.recall_1_char_commands)):
cmd = self.iter_get_command(it).strip()
cmd_hash = hash_cmd(cmd)
tb.move_mark(self.hist_mark, it)
count = self.hist_count.get(cmd_hash, 0) + 1
self.hist_count[cmd_hash] = count
if count == 1:
sb.set_text(cmd)
self._track_change()
sb.place_cursor(sb.get_end_iter())
break
if it.is_start():
beep()
return
else:
beep()
def history_down(self):
"""Called when the history down command is required"""
if self.textview.is_focus():
tb = self.textbuffer
command = tb.get_tag_table().lookup(COMMAND)
insert = tb.get_insert()
it = tb.get_iter_at_mark(insert)
it.forward_to_tag_toggle(command)
if it.ends_tag(command):
it.forward_to_tag_toggle(command)
self.textbuffer.place_cursor(it)
self.textview.scroll_mark_onscreen(insert)
elif self.sourceview.is_focus():
tb = self.textbuffer
sb = self.sourcebuffer
command = tb.get_tag_table().lookup(COMMAND)
if self.sb_changed:
beep()
return
it = tb.get_iter_at_mark(self.hist_mark)
passed_one = False
while True:
if not it.begins_tag(command):
# Return the source buffer to the prefix and everything
# to initial state.
sb.set_text(self.hist_prefix)
sb.place_cursor(sb.get_end_iter())
# Since we change the text and not called _track_change,
# it's like the user did it and hist_prefix is not longer
# meaningful.
break
first_line = self.iter_get_command(
it, only_first_line=True).strip()
if (first_line and first_line.startswith(self.hist_prefix) and
(len(first_line) > 2 or self.recall_1_char_commands)):
cmd = self.iter_get_command(it).strip()
cmd_hash = hash_cmd(cmd)
tb.move_mark(self.hist_mark, it)
if self.hist_count[cmd_hash] == 1:
if passed_one:
sb.set_text(cmd)
self._track_change()
sb.place_cursor(sb.get_end_iter())
break
else:
passed_one = True
self.hist_count[cmd_hash] -= 1
it.forward_to_tag_toggle(command)
it.forward_to_tag_toggle(command)
else:
beep()
