def detect_internal_link(self, text: str, start: Gtk.TextIter) -> None:
"""Detect internal links (to other gtg tasks) and apply tags."""
# Find all matches
matches = re.finditer(INTERNAL_REGEX, text)
# Go through each with its own iterator and tag 'em
for match in matches:
url_start = start.copy()
url_end = start.copy()
url_start.forward_chars(match.start())
url_end.forward_chars(match.end())
tid = match.group(0).replace('gtg://', '')
task = self.req.get_task(tid)
if task:
link_tag = InternalLinkTag(task)
self.tags_applied.append(link_tag)
self.table.add(link_tag)
self.buffer.apply_tag(link_tag, url_start, url_end)
def detect_tag(self, text: str, start: Gtk.TextIter) -> None:
"""Detect GTGs tags and applies text tags to them."""
# Find all matches
matches = re.finditer(TAG_REGEX, text)
# Go through each with its own iterator and tag 'em
for match in matches:
tag_start = start.copy()
tag_end = start.copy()
tag_start.forward_chars(match.start())
tag_end.forward_chars(match.end())
# I find this confusing too :)
tag_name = match.group(0)
tag_tag = TaskTagTag(tag_name, self.req)
self.tags_applied.append(tag_tag)
self.table.add(tag_tag)
self.buffer.apply_tag(tag_tag, tag_start, tag_end)
self.task_tags.add(tag_name)
self.add_tasktag_cb(tag_name)
def follow_if_link(self, text_view: 'LinkedTextView',
itr: Gtk.TextIter) -> bool:
"""Retrieve the target of a link that was clicked.
This is done by emitting the `link-activated` signal defined in
this class.
Whether or not it was a link, the click won't be processed further.
"""
# Get the tags where the colours are set, marking the link text.
begin = itr.copy()
begin.forward_to_tag_toggle()
end = itr.copy()
end.backward_to_tag_toggle()
# Get the target of the link from its text.
link_text = text_view.get_buffer().get_text(begin, end)
target = text_view.get_buffer().markup_dict.get(link_text)
# Confirm that is is in the links dictionary.
if target is not None:
self.emit('link-activated', target)
return False # Do not process the signal further.
def _get_start_pos_mark(textiter: Gtk.TextIter) -> Optional[Tuple[int, int]]:
cursor: Gtk.TextIter = textiter.copy()
limit = 50
i = 0
while cursor.backward_char():
if i > limit:
break
if cursor.get_char() == '>':
# We are not in a PositionMark, for sure!
return None
if cursor.get_char() == 'P':
# Start of position mark?
end_cursor = cursor.copy()
end_cursor.forward_chars(9)
if cursor.get_text(end_cursor) == 'Position<':
return cursor.get_line(), cursor.get_line_offset()
i += 1
return None
def detect_subheading(self, text: str, start: Gtk.TextIter) -> None:
"""Detect subheadings (akin to H2)."""
if text.startswith('# ') and len(text) > 2:
end = start.copy()
end.forward_chars(2)
invisible_tag = InvisibleTag()
self.table.add(invisible_tag)
self.buffer.apply_tag(invisible_tag, start, end)
start.forward_chars(2)
end.forward_to_line_end()
subheading_tag = SubheadingTag()
self.table.add(subheading_tag)
self.buffer.apply_tag(subheading_tag, start, end)
self.tags_applied.append(subheading_tag)
self.tags_applied.append(invisible_tag)
def add_checkbox(self, tid: int, start: Gtk.TextIter) -> None:
"""Add a checkbox for a subtask."""
task = self.req.get_task(tid)
checkbox = Gtk.CheckButton.new()
if task and task.status != task.STA_ACTIVE:
checkbox.set_active(True)
checkbox.connect('toggled', lambda _: self.on_checkbox_toggle(tid))
checkbox.set_can_focus(False)
# Block the modified signal handler while we add the anchor
# for the checkbox widget
with GObject.signal_handler_block(self.buffer, self.id_modified):
anchor = self.buffer.create_child_anchor(start)
self.add_child_at_anchor(checkbox, anchor)
end = start.copy()
end.forward_char()
self.buffer.apply_tag(self.checkbox_tag, start, end)
self.buffer.set_modified(False)
checkbox.show()
def detect_subtasks(self, text: str, start: Gtk.TextIter) -> bool:
"""Detect a subtask line. Returns True if a subtask was found."""
# This function has three paths:
# * "Initial" Path: We find the line starts with '- ' and has text.
# * "Modified" Path: We find the line starts with a subtask tag
# * "None" Path: The line doesn't have any subtasks
# The structure of a subtask in terms of text tags is:
# <subtask>
# <checkbox>[ ]</checkbox>
# <internal-link>Subtask name</internal-link>
# </subtask>
# Add a new subtask
if text.startswith('- ') and len(text[2:]) > 0:
# Remove the -
delete_end = start.copy()
delete_end.forward_chars(2)
self.buffer.delete(start, delete_end)
# Add new subtask
tid = self.new_subtask_cb(text[2:])
task = self.req.get_task(tid)
status = task.get_status() if task else 'Active'
# Add the checkbox
self.add_checkbox(tid, start)
after_checkbox = start.copy()
after_checkbox.forward_char()
# Add the internal link
link_tag = InternalLinkTag(tid, status)
self.table.add(link_tag)
end = start.copy()
end.forward_to_line_end()
self.buffer.apply_tag(link_tag, after_checkbox, end)
self.tags_applied.append(link_tag)
# Add the subtask tag
start.backward_char()
subtask_tag = SubTaskTag(tid)
self.table.add(subtask_tag)
self.buffer.apply_tag(subtask_tag, start, end)
self.subtasks['tags'].append(tid)
return True
# A subtask already exists
elif start.starts_tag():
# Detect if it's a subtask tag
sub_tag = None
for tag in start.get_tags():
if type(tag) == SubTaskTag:
sub_tag = tag
# Otherwise return early
if not sub_tag:
return False
# Don't auto-remove it
tid = sub_tag.tid
task = self.req.get_task(tid)
parents = task.get_parents()
# Remove if its not a child of this task
if not parents or parents[0] != self.tid:
log.debug('Task %s is not a subtask of %s', tid, self.tid)
log.debug('Removing subtask %s from content', tid)
end = start.copy()
end.forward_to_line_end()
# Move the start iter to take care of the newline at
# the previous line
start.backward_chars(2)
self.buffer.delete(start, end)
return False
# Check that we still have a checkbox
after_checkbox = start.copy()
after_checkbox.forward_char()
has_checkbox = any(type(t) == CheckboxTag
for t in after_checkbox.get_tags())
if not has_checkbox:
check = self.buffer.get_slice(start, after_checkbox, True)
# Check that there's still a checkbox. If the user has
# deleted all text including the space after the checkbox,
# the check for the tag will return False. In this case
# we want to check if the checkbox is still around, if it
# is the user might still type a new name for the task.
# Otherwise, if the checkbox was deleted, we return and let
# the text tags be deleted.
if check != u'\uFFFC':
return False
try:
self.subtasks['to_delete'].remove(tid)
except ValueError:
pass
self.rename_subtask_cb(tid, text)
# Get the task and instantiate an internal link tag
status = task.get_status() if task else 'Active'
link_tag = InternalLinkTag(tid, status)
self.table.add(link_tag)
# Apply the new internal link tag (which was removed
# by process())
end = start.copy()
end.forward_to_line_end()
self.buffer.apply_tag(link_tag, after_checkbox, end)
self.tags_applied.append(link_tag)
# Re-apply the subtask tag too
self.table.remove(sub_tag)
subtask_tag = SubTaskTag(tid)
self.table.add(subtask_tag)
self.buffer.apply_tag(subtask_tag, start, end)
return True
# No subtask, no fun
else:
return False
def detect_subtasks(self, text: str, start: Gtk.TextIter) -> bool:
"""Detect a subtask line. Returns True if a subtask was found."""
# This function has three paths:
# * "Initial" Path: We find the line starts with '- ' and has text.
# * "Modified" Path: We find the line starts with a subtask tag
# * "None" Path: The line doesn't have any subtasks
# The structure of a subtask in terms of text tags is:
# <subtask>
# <checkbox>[ ]</checkbox>
# <internal-link>Subtask name</internal-link>
# </subtask>
# Add a new subtask
if text.startswith('- ') and len(text[2:]) > 0:
# Remove the -
delete_end = start.copy()
delete_end.forward_chars(2)
self.buffer.delete(start, delete_end)
# Add new subtask
tid = self.new_subtask_cb(text[2:])
task = self.req.get_task(tid)
status = task.get_status() if task else 'Active'
# Add the checkbox
self.add_checkbox(tid, start)
after_checkbox = start.copy()
after_checkbox.forward_char()
# Add the internal link
link_tag = InternalLinkTag(tid, status)
self.table.add(link_tag)
end = start.copy()
end.forward_to_line_end()
self.buffer.apply_tag(link_tag, after_checkbox, end)
self.tags_applied.append(link_tag)
# Add the subtask tag
start.backward_char()
subtask_tag = SubTaskTag(tid)
self.table.add(subtask_tag)
self.buffer.apply_tag(subtask_tag, start, end)
self.subtasks['tags'].append(tid)
return True
# A subtask already exists
elif start.starts_tag():
# Detect if it's a subtask tag
sub_tag = None
for tag in start.get_tags():
if type(tag) == SubTaskTag:
sub_tag = tag
# Otherwise return early
if not sub_tag:
return False
# Check that we still have a checkbox
after_checkbox = start.copy()
after_checkbox.forward_char()
has_checkbox = any(type(t) == CheckboxTag
for t in after_checkbox.get_tags())
if not has_checkbox:
return False
# Don't auto-remove it
tid = sub_tag.tid
try:
self.subtasks['to_delete'].remove(tid)
except ValueError:
pass
self.rename_subtask_cb(tid, text)
# Get the task and instantiate an internal link tag
task = self.req.get_task(tid)
status = task.get_status() if task else 'Active'
link_tag = InternalLinkTag(tid, status)
self.table.add(link_tag)
# Apply the new internal link tag (which was removed
# by process())
end = start.copy()
end.forward_to_line_end()
self.buffer.apply_tag(link_tag, after_checkbox, end)
self.tags_applied.append(link_tag)
# Re-apply the subtask tag too
self.table.remove(sub_tag)
subtask_tag = SubTaskTag(tid)
self.table.add(subtask_tag)
self.buffer.apply_tag(subtask_tag, start, end)
return True
# No subtask, no fun
else:
return False
