def _build_calltip_data(self, textiter: Gtk.TextIter,
buffer: GtkSource.Buffer):
cursor = textiter.copy()
count_commas = 0
count_commas_since_last_lang_string_begin_mark = 0
while cursor.backward_char():
if cursor.get_char() == ')':
# We are not in a function, for sure!
return None
if cursor.get_char() == '{' or cursor.get_char() == '<':
# Handle middle of language string or a pos marker
count_commas -= count_commas_since_last_lang_string_begin_mark
count_commas_since_last_lang_string_begin_mark = 0
if cursor.get_char() == '}' or cursor.get_char() == '>':
# Handle end of language string or a pos marker
count_commas_since_last_lang_string_begin_mark = 0
if cursor.get_char() == '(':
# Handle the opcode/function name
start_of_word = cursor.copy()
backward_until_space(start_of_word)
opcode_name = buffer.get_text(start_of_word, cursor, False)
for op in self.opcodes:
if op.name == opcode_name:
return op, count_commas
return None
if cursor.get_char() == ',':
# Collect commas for the arg index
count_commas += 1
count_commas_since_last_lang_string_begin_mark += 1
return None
def on_buffer_notify_cursor_position(self, buffer: GtkSource.Buffer,
*args):
textiter = buffer.get_iter_at_offset(buffer.props.cursor_position)
if 'string' in buffer.get_context_classes_at_iter(textiter):
# iter_backward_to_context_class_toggle and iter_forward_to_context_class_toggle
# seem to be broken (because of course they are), so we do it manually.
start = self._get_string_start(textiter)
end = self._get_string_end(textiter)
if start is None or end is None:
return True
string = buffer.get_text(start, end, False)
self.context.on_selected_string_changed(string)
return True