def popup_list(self, key):
"""
This method popups a window with a list of snippets.
@param key: A snippet key.
@type key: A string.
"""
buffer = self.view.buffer
insert_mark = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert_mark)
alloc = self.view.get_iter_location(insert_iter)
cursor_pos = self.view.buffer_to_window_coords(gtk.TEXT_WINDOW_TEXT,
alloc.x, alloc.y)
window = self.view.get_window(gtk.TEXT_WINDOW_WIDGET)
wp_x, wp_y = window.get_origin()
view_rec = self.view.get_visible_rect()
position_x = cursor_pos[0] + wp_x + 20
position_y = cursor_pos[1] + wp_y + 20
if (position_x + 190) > (wp_x + view_rec.width):
position_x = (wp_x + view_rec.width) - 190
if (position_y + 190) > (wp_y + view_rec.height):
position_y = (wp_y + cursor_pos[1]) - 190
self.pw = SnippetPopupWindow()
self.pw.run(self.snippets[key], (position_x, position_y))
class SnippetManager(object):
"""
This class manage all snippets of current language.
"""
def __init__(self, document):
"""
Constructor.
@param document: The current Document
@type document: A Document object.
"""
self.document = document
self.view = document.view
self.snippets = {}
self.language = None
self.stack = []
self.top = None
#################### Public Methods ####################
def load(self, language):
"""
Loads all snippets of current language syntax highlight.
@param language: The name of a language.
@type language: A string.
"""
self.language = language
try:
doc = \
xml.dom.minidom.parse(constants.LANGUAGES_USER_DIR + "/" + self.language + "/" + "snippets.xml")
except IOError:
self.snippets = {}
except xml.parsers.expat.ExpatError:
self.__show_error_dialog()
self.snippets = {}
else:
key = None
string = None
name = None
for i in doc.getElementsByTagName("snippet"):
for node in i.getElementsByTagName("key"):
key = node.childNodes[0].data
for node in i.getElementsByTagName("body"):
string = node.childNodes[0].data
for node in i.getElementsByTagName("name"):
name = node.childNodes[0].data
if key and string and name:
info = SnippetInfo(key, string, name)
if self.snippets.has_key(key):
self.snippets[key].append(info)
else:
self.snippets[key] = [info]
else:
self.__show_error_dialog()
self.snippets = {}
return
def active(self):
"""
This method actives a snippet.
@param key: The snippet activation key.
@type: A string.
"""
if len(self.snippets) == 0:
return False
buffer = self.view.buffer
key = self.__get_key()
if self.snippets.has_key(key):
if len(self.snippets[key]) > 1:
self.popup_list(key)
self.id_key_press = self.view.connect('key-press-event',
self.key_press)
self.id_event_after = self.view.connect('event-after',
self.event_after, key, self.snippets[key])
self.id_button_press = self.pw.treeview.connect('event-after',
self.item_clicked)
notebook = self.view.get_parent().get_parent().get_parent()
self.id_switch_page = notebook.connect('switch-page',
self.switch_page)
else:
# Delete key
insert_mark = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert_mark)
start_iter = insert_iter.copy()
self.__find_word_start(start_iter)
start_del_mark = buffer.create_mark(None, start_iter, True)
si = buffer.get_iter_at_mark(start_del_mark)
ei = buffer.get_iter_at_mark(insert_mark)
buffer.delete(si, ei)
text = self.snippets[key][0].string
self.__parser(text)
return True
else:
return False
def popup_list(self, key):
"""
This method popups a window with a list of snippets.
@param key: A snippet key.
@type key: A string.
"""
buffer = self.view.buffer
insert_mark = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert_mark)
alloc = self.view.get_iter_location(insert_iter)
cursor_pos = self.view.buffer_to_window_coords(gtk.TEXT_WINDOW_TEXT,
alloc.x, alloc.y)
window = self.view.get_window(gtk.TEXT_WINDOW_WIDGET)
wp_x, wp_y = window.get_origin()
view_rec = self.view.get_visible_rect()
position_x = cursor_pos[0] + wp_x + 20
position_y = cursor_pos[1] + wp_y + 20
if (position_x + 190) > (wp_x + view_rec.width):
position_x = (wp_x + view_rec.width) - 190
if (position_y + 190) > (wp_y + view_rec.height):
position_y = (wp_y + cursor_pos[1]) - 190
self.pw = SnippetPopupWindow()
self.pw.run(self.snippets[key], (position_x, position_y))
def pop_snippet(self):
"""
Pop a snippet.
"""
self.stack[-1].remove_marks()
self.stack.pop()
def push_snippet(self, snippet):
"""
Push a snippet.
@param snippet: A snippet that will be pushed.
@type: A Snippet Object.
"""
self.stack.append(snippet)
def next_field(self):
"""
This method selects the next field of the snippet at the top of the
stack.
"""
self.stack[-1].next()
def previous_field(self):
"""
This method selects the previous field of the snippet at the top of the
stack.
"""
self.stack[-1].previous()
def valid_cursor_position(self):
"""
This method verify if the insert cursor is between the snippet bounds.
@return: True if insert cursor is between the snippet bounds,
else, return False.
@rtype: A boolean.
"""
buffer = self.view.buffer
insert = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert)
begin, end = self.stack[-1].bounds
begin_iter = buffer.get_iter_at_mark(begin)
end_iter = buffer.get_iter_at_mark(end)
return insert_iter.in_range(begin_iter, end_iter)
#################### Signals ####################
def item_clicked(self, widget, event):
if event.type == gtk.gdk.BUTTON_PRESS:
if event.button == 1:
buffer = self.view.buffer
key = self.__get_key()
position = self.pw.get_selected()
insert_mark = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert_mark)
start_iter = insert_iter.copy()
self.__find_word_start(start_iter)
start_del_mark = buffer.create_mark(None, start_iter, True)
si = buffer.get_iter_at_mark(start_del_mark)
ei = buffer.get_iter_at_mark(insert_mark)
buffer.delete(si, ei)
text = self.snippets[key][position].string
self.__parser(text)
self.__destroy()
else:
return
def key_press(self, widget, event):
keyval = event.keyval
if keyval == gtk.keysyms.Down:
self.pw.item_down()
return True
elif keyval == gtk.keysyms.Up:
self.pw.item_up()
return True
elif keyval == gtk.keysyms.Return:
return True
def event_after(self, widget, event, key, words):
if event.type == gtk.gdk.KEY_RELEASE:
keyval = event.keyval
if keyval == gtk.keysyms.Up:
return
elif keyval == gtk.keysyms.Down:
return
elif keyval == gtk.keysyms.Return:
buffer = self.view.buffer
position = self.pw.get_selected()
insert_mark = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert_mark)
start_iter = insert_iter.copy()
self.__find_word_start(start_iter)
start_del_mark = buffer.create_mark(None, start_iter, True)
si = buffer.get_iter_at_mark(start_del_mark)
ei = buffer.get_iter_at_mark(insert_mark)
buffer.delete(si, ei)
text = self.snippets[key][position].string
self.__parser(text)
self.__destroy()
elif keyval == gtk.keysyms.Tab:
return
else:
self.__destroy()
return False
elif event.type == gtk.gdk.BUTTON_RELEASE:
self.__destroy()
return
else:
return
def switch_page(self, widget, page, page_num):
self.__destroy()
#################### Private Methods ####################
def __parser(self, text):
"""
This method parses the TextFlow snippet definition syntax.
@param text: The text coded using TextFlow snippet definition syntax.
@type text: A string.
"""
buffer = self.view.buffer
# Snippet components
fields = Tree()
mirrors = []
stop = None
root_init = fields.add(None, None) #empty root
root = root_init
# Cursor
insert = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert)
# Indentation stuff
pref_manager = tf.app.preferences_manager
spaces = pref_manager.get_value("indentation/use_spaces")
tab_width = self.view.get_tab_width()
indent = self.document.get_indentation(insert_iter)
# Create a mark at start of snippet
begin_bound_mark = buffer.create_mark(None, insert_iter, True)
# Parsing text
i = 0
stack = []
while (i<len(text)):
char = text[i]
# Verifying escape char "\"
if char == "\\":
self.view.buffer.insert_at_cursor(text[i+1])
i += 2
continue
# Look for a snippet special component "${}"
if char == '$' and (i+1) < len(text) and text[i+1] == '{':
if text[i+2] == '0':
# STOP
stop_iter = buffer.get_iter_at_mark(buffer.get_insert())
stop = buffer.create_mark(None, stop_iter, True)
i += 3
elif text[i+2] == "%":
# MIRROR
mirror_iter = buffer.get_iter_at_mark(buffer.get_insert())
begin_mark = buffer.create_mark(None, mirror_iter, True)
end_mark = buffer.create_mark(None, mirror_iter, True)
#begin_mark.set_visible(True)
# Get mirror number
j = i+3
num = []
while char != '}' and char != '/':
char = text[j]
num.append(char)
j += 1
mirror_num = int("".join(num[:-1]))
i = j-1
if char == '/':
k = i
brace_count = 1
while True:
if text[k] == '{':
brace_count += 1
elif text[k] == '}':
brace_count -= 1
if brace_count == 0:
break
k += 1
regexp = text[i+1:k].split('/')
i = k
m = SnippetMirror(self.view, mirror_num,
(begin_mark, end_mark))
m.regexp = (regexp[0], regexp[1])
else:
m = SnippetMirror(self.view, mirror_num,
(begin_mark, end_mark))
mirrors.append(m)
else:
# FIELD
j = i+2
num = []
char = text[j]
while char != ':':
num.append(char)
j+=1
char = text[j]
num = int("".join(num))
field_iter = buffer.get_iter_at_mark(buffer.get_insert())
begin_mark = buffer.create_mark(None, field_iter, True)
#begin_mark.set_visible(True)
f = SnippetField(self.view, num, (begin_mark,))
root = fields.add(f, root)
stack.append(root)
i = j
elif char == '}':
if len(stack) > 0:
node = stack.pop()
if len(stack) == 0:
root = root_init
bm = node.elem.marks[0]
end_iter = buffer.get_iter_at_mark(buffer.get_insert())
em = buffer.create_mark(None, end_iter, True)
#em.set_visible(True)
node.elem.marks = (bm, em)
elif len(stack) == 0:
root = root_init
self.view.buffer.insert_at_cursor(char)
else:
root = stack[-1]
elif char == '\t':
if spaces:
self.view.buffer.insert_at_cursor(" " * tab_width)
else:
self.view.buffer.insert_at_cursor(char)
elif char == '\n':
# LINE BREAK
buffer.insert_at_cursor("\n")
buffer.insert_at_cursor(indent)
else:
self.view.buffer.insert_at_cursor(char)
i+=1
#Not well-formed snippet
if len(stack) > 0:
fields.pre_order(self.__disconnect_field_signal)
return
# Change stop gravity
if stop != None:
stop_iter = buffer.get_iter_at_mark(stop)
buffer.delete_mark(stop)
stop = buffer.create_mark(None, stop_iter, False)
#stop.set_visible(True)
# Change mirrors gravity
for i in range(len(mirrors)):
m = mirrors[i].marks[1]
n = mirrors[i].marks[0]
m_iter = buffer.get_iter_at_mark(m)
buffer.delete_mark(m)
new_m = buffer.create_mark(None, m_iter, False)
#new_m.set_visible(True)
mirrors[i].marks = (n, new_m)
# Change fields gravity
fields.pre_order(self.__fields_change_gravity)
# Change begin bound gravity
m = begin_bound_mark
m_iter = buffer.get_iter_at_mark(m)
buffer.delete_mark(m)
begin_bound_mark = buffer.create_mark(None, m_iter, False)
#begin_bound_mark.set_visible(True)
# Create end bound mark
insert_iter = buffer.get_iter_at_mark(insert)
end_bound_mark = buffer.create_mark(None, insert_iter, False)
#end_bound_mark.set_visible(True)
# print "root: ", fields.root
# print "root's children: ", fields.root.children
bounds = (begin_bound_mark, end_bound_mark)
snippet = Snippet(self.document, fields, mirrors, stop, bounds)
self.push_snippet(snippet)
if len(snippet.fields.root.children) > 0:
buffer.place_cursor(buffer.get_iter_at_mark(begin_bound_mark))
self.next_field()
else:
self.pop_snippet()
def __fields_change_gravity(self, node):
"""
This method change gravity of a snippet field's right mark.
@param node: A snippet field.
@type node: A TreeNode.
"""
buffer = self.view.buffer
field = node.elem
if field != None:
m = field.marks[1]
n = field.marks[0]
m_iter = buffer.get_iter_at_mark(m)
buffer.delete_mark(m)
new_m = buffer.create_mark(None, m_iter, False)
#new_m.set_visible(True)
field.marks = (n, new_m)
def __disconnect_field_signal(self, node):
"""
Disconnect all field's signals.
@param node: A snippet field.
@type node: A TreeNode.
"""
field = node.elem
if field != None:
if field.id != None:
field.view.disconnect(field.id)
def __show_error_dialog(self):
"""
Show the snippet error dialog.
"""
dialog = gtk.MessageDialog(None, 0, gtk.MESSAGE_ERROR,
gtk.BUTTONS_NONE, None)
dialog.format_secondary_text(constants.MESSAGE_0012)
dialog.set_markup(constants.MESSAGE_0011)
dialog.add_button(gtk.STOCK_OK, 1)
dialog.run()
dialog.destroy()
def __get_key(self):
"""
Get the snippet key from textbuffer according cursor position.
"""
buffer = self.view.buffer
insert_mark = buffer.get_insert()
insert_iter = buffer.get_iter_at_mark(insert_mark)
start_iter = insert_iter.copy()
self.__find_word_start(start_iter)
key = buffer.get_text(start_iter, insert_iter)
return key
def __find_word_start(self, iterator):
"""
Find the start of a word.
@param iterator: A iterator at end of a word.
@type iterator: A TextIter.
"""
pattern = re.compile("[a-z|A-Z|0-9|<|>|/]")
symbols = ('!', '@', '#', '$', '%', '&', '*',
'(', ')', '-' ,'+', '.', ',', '~', '^')
iterator.backward_char()
if iterator.get_char() in symbols:
return
while True:
char = iterator.get_char()
if not(re.match(pattern, char)):
iterator.forward_char()
return
elif iterator.starts_line():
return
else:
iterator.backward_char()
def __destroy(self):
"""
Destroy the snippet popup window.
"""
self.view.disconnect(self.id_event_after)
self.view.disconnect(self.id_key_press)
notebook = self.view.get_parent().get_parent().get_parent()
notebook.disconnect(self.id_switch_page)
self.pw.destroy()
self.pw = None
