__gtype_name__ = "IndentedListsPlugin"

view = GObject.property(type=Gedit.View)

def __init__(self):

GObject.Object.__init__(self)

def do_activate(self):

self._handlers = [

None,

self.view.connect('notify::editable', self.on_notify),

self.view.connect('notify::insert-spaces-instead-of-tabs', self.on_notify)

]

def do_deactivate(self):

for handler in self._handlers:

if handler is not None:

self.view.disconnect(handler)

def update_active(self):

# Don't activate the feature if the buffer isn't editable or if

# we're using spaces

active = self.view.get_editable() and \

not(self.view.get_insert_spaces_instead_of_tabs())

if active and self._handlers[0] is None:

self._handlers[0] = self.view.connect('key-press-event',

self.on_key_press_event)

elif not active and self._handlers[0] is not None:

self.view.disconnect(self._handlers[0])

self._handlers[0] = None

def on_notify(self, view, pspec):

self.update_active()

def on_key_press_event(self, view, event):

#Bail out if text is selected

doc = view.get_buffer()

if doc.get_has_selection():

return False

# If we're at the begining of the line,

# then, we don't have a need for anything special

cur = doc.get_iter_at_mark(doc.get_insert())

offset = cur.get_line_offset()

if offset == 0:

return False

#Collect some state helpers

mods = Gtk.accelerator_get_default_mod_mask()

shift_pressed = event.state & Gdk.ModifierType.SHIFT_MASK != 0

if event.keyval == Gdk.KEY_Return and event.state & mods == 0:

return self.HandleReturn(doc, cur)

if event.keyval == Gdk.KEY_Tab and not(shift_pressed):

return self.HandleTab(doc, cur)

if shift_pressed and event.keyval == Gdk.KEY_ISO_Left_Tab:

return self.HandleShiftTab(doc, cur)

# if event.keyval == Gdk.KEY_BackSpace:

# return self.HandleBackSpace(doc, cur)

return False # We didn't handle this event, pass it on

def HandleReturn(self, doc, cur):

line_number = cur.get_line()

begin = doc.get_iter_at_line_offset(line_number, 0)

new_line_prepend = ['\n']

should_process = False

last_char = None

while begin.compare(cur) == -1:

begin_char = begin.get_char()

if (begin_char == '+' or begin_char == '*' or begin_char == '-' or begin_char == '0' or begin_char == '1' or begin_char == '2' or begin_char == '3' or begin_char == '4' or begin_char == '5' or begin_char == '6' or begin_char == '7' or begin_char == '8' or begin_char == '9'):

should_process = True

last_char = begin_char

break

elif not(begin_char == ' ' or begin_char == ' '): # TAB or SPACE

should_process = False

break

else:

new_line_prepend.append(begin_char)

begin.forward_char()

#If we already know this isn't a "special" list return, bail out

if should_process == False:

return False

if (last_char == '0' or last_char == '1' or last_char == '2' or last_char == '3' or last_char == '4' or last_char == '5' or last_char == '6' or last_char == '7' or last_char == '8' or last_char == '9'):

# Might be continuing a numbered list. Look for ")"

should_process = False

number_buffer = [last_char]

begin.forward_char()

while begin.compare(cur) == -1:

begin_char = begin.get_char()

if (begin_char == '0' or begin_char == '1' or begin_char == '2' or begin_char == '3' or begin_char == '4' or begin_char == '5' or begin_char == '6' or begin_char == '7' or begin_char == '8' or begin_char == '9'):

number_buffer.append(begin_char)

begin.forward_char()

elif begin_char == ')' or begin_char == '.' or begin_char == ':':

int_number = int(''.join(number_buffer))

int_number = int_number + 1

new_line_prepend.append(int_number.__str__())

new_line_prepend.append(begin_char)

should_process = True

break

else:

break

#If this was just a number preceded by tabs/spaces,

# or we ran into unexpected chars, or ran out of characters, bail out

if should_process == False:

return False

else:

#Check next char, and if same, bail

if begin.compare(cur) == -1:

begin_char = begin.get_char()

look_ahead = begin.copy()

look_ahead.forward_char()

la_char = look_ahead.get_char()

if begin_char == la_char:

# This is not a list. It's probably a horizontal line. Bail out.

return False

new_line_prepend.append(last_char) # prepend a '*' or '-'

# Insert a new line, continuing the existing list

if(len(new_line_prepend) > 0):

new_line_prepend.append(' ')

doc.begin_user_action()

insert_this = ''.join(new_line_prepend)

doc.insert_interactive(cur, insert_this, len(insert_this), self.view.get_editable())

doc.end_user_action()

# This didn't help. I'm not sure how to scroll when you enter off-screen...

# self.view.scroll_to_iter(cur, 0.5, False, 0, 0)

return True

else:

return False

def HandleTab(self, doc, cur):

line_number = cur.get_line()

begin = doc.get_iter_at_line_offset(line_number, 0)

insert_tab_here = None

while begin.compare(cur) == -1 and insert_tab_here is None:

begin_char = begin.get_char()

if (begin_char == '+' or begin_char == '*' or begin_char == '-' or begin_char == '0' or begin_char == '1' or begin_char == '2' or begin_char == '3' or begin_char == '4' or begin_char == '5' or begin_char == '6' or begin_char == '7' or begin_char == '8' or begin_char == '9'):

insert_tab_here = begin.copy()

elif not(begin_char == ' ' or begin_char == ' '): # TAB or SPACE

break

else:

begin.forward_char()

if insert_tab_here is None:

# Nothing found to do. Bail out.

return False

else:

if begin.compare(cur) == -1:

begin.forward_char()

begin_char = begin.get_char()

if begin_char == '+' or begin_char == '-' or begin_char == '*':

# This is not a list. It's probably a horizontal line. Bail out.

return False

# Insert a tab before the list item

doc.begin_user_action()

doc.insert_interactive(insert_tab_here, ' ', 1, self.view.get_editable())

doc.end_user_action()

return True

def HandleShiftTab(self, doc, cur):

line_number = cur.get_line()

begin = doc.get_iter_at_line_offset(line_number, 0)

remove_tab_here = None

while begin.compare(cur) == -1 and remove_tab_here is None:

begin_char = begin.get_char()

if (begin_char == '+' or begin_char == '*' or begin_char == '-' or begin_char == '0' or begin_char == '1' or begin_char == '2' or begin_char == '3' or begin_char == '4' or begin_char == '5' or begin_char == '6' or begin_char == '7' or begin_char == '8' or begin_char == '9'):

remove_tab_here = begin

elif not(begin_char == ' ' or begin_char == ' '): # TAB or SPACE

break

else:

begin.forward_char()

if remove_tab_here is None:

# Nothing found to do. Bail out.

return False

else:

if remove_tab_here.get_line_offset() > 0:

# There is a tab to remove. Remove it.

remove_end = remove_tab_here.copy()

remove_tab_here.backward_char()

doc.begin_user_action()

doc.delete(remove_tab_here, remove_end)

doc.end_user_action()

return True

else:

# Bail out

return False

#TODO: Pretty buggy

# If you have " - my stuff, and oops", and you hit backspace, you lose the whole line

# Need to detect when you're at the beginning of a list item, and only apply backspace then

def HandleBackSpace(self, doc, cur):

line_number = cur.get_line()

begin = doc.get_iter_at_line_offset(line_number, 0)

is_list_item = None

while begin.compare(cur) == -1 and is_list_item is None:

begin_char = begin.get_char()

if (begin_char == '+' or begin_char == '*' or begin_char == '-'):

is_list_item = begin

elif not(begin_char == ' ' or begin_char == ' '): # TAB or SPACE

break

else: # if it's a tab or space

begin.forward_char()

if is_list_item is None:

# Nothing found to do. Bail out.

return False

else:

if begin.compare(cur) == -1:

begin.forward_char()

begin_char = begin.get_char()

if begin_char == '+' or begin_char == '-' or begin_char == '*':

# This is not a list. It's probably a horizontal line. Bail out.

return False

# Clear the curent line

begin = doc.get_iter_at_line_offset(line_number, 0)

doc.begin_user_action()

doc.delete(begin, cur)

doc.end_user_action()