def _render_curr_line(self, cursor_pos):
"""To add an indicator in front of the current line."""
if cursor_pos < 0:
cursor_pos = len(v.buffer()) - 1
line = v.getline(cursor_pos)
indicator = settings.get("current_line_indicator")
v.setline(cursor_pos, indicator + line[len(indicator):])
return cursor_pos
def open(self):
"""To open the Surfer user interface."""
# The Fugitive plugin seems to interfere with Surfer since it adds
# some filenames to the vim option `tags`. Surfer does this too,
# but if Fugitive is installed and the user is editing a file in a git
# repository, it seems that Surfer cannot append anything to the
# `tag` option. I haven't still figured out why this happens but this
# seems to fix the issue.
v.exe("exe 'set tags='.&tags")
self.user_buf = self.BufInfo(v.bufname(), v.bufnr(), v.winnr())
pmod = settings.get("project_search_modifier")
bmod = settings.get("buffer_search_modifier")
prompt = u"echohl SurferPrompt | echon \"{}\" | echohl None".format(
settings.get("prompt"))
self._open_window()
self.renderer.render(self.winnr, -1, "", [], "")
v.redraw()
# Start the input loop
key = input.Input()
while True:
self.perform_new_search = True
# Display the prompt and the current query
v.exe(prompt)
query = self.query.replace("\\", "\\\\").replace('"', '\\"')
v.exe(u"echon \"{}\"".format(query))
# Wait for the next pressed key
key.get()
# Go to the tag on the current line
if (key.RETURN or key.CTRL and key.CHAR in ('g', 'o', 'p', 's')):
mode = key.CHAR if key.CHAR in ('s', 'p') else ''
tag = self.mapper.get(self.cursor_pos)
if tag:
self._jump_to(tag, mode)
break
# Close the Surfer window
elif key.ESC or key.INTERRUPT:
self._close()
break
# Delete a character backward
elif key.BS:
query = self.query.strip()
if query and query in (bmod, pmod):
self.plug.generator.rebuild_tags = True
self.query = u"{}".format(self.query)[:-1]
self.cursor_pos = -1 # move the cursor to the bottom
# Move the cursor up
elif key.UP or key.TAB or key.CTRL and key.CHAR == 'k':
self.perform_new_search = False
if self.cursor_pos == 0:
self.cursor_pos = len(v.buffer()) - 1
else:
self.cursor_pos -= 1
# Move the cursor down
elif key.DOWN or key.CTRL and key.CHAR == 'j':
self.perform_new_search = False
if self.cursor_pos == len(v.buffer()) - 1:
self.cursor_pos = 0
else:
self.cursor_pos += 1
# Clear the current search
elif key.CTRL and key.CHAR == 'u':
query = self.query.lstrip()
if query and query[0] in (bmod, pmod):
self.query = query[0]
else:
self.query = u""
self.cursor_pos = -1 # move the cursor to the bottom
# A character has been pressed.
elif key.CHAR:
self.query += key.CHAR
self.cursor_pos = -1 # move the cursor to the bottom
if key.CHAR in (pmod, bmod) and len(self.query.strip()) == 1:
self.plug.generator.rebuild_tags = True
else:
v.redraw()
continue
self._update()
v.redraw()
