# Copyright (C) 2003-2014 Yann Leboulanger <asterix AT lagaule.org>
# Copyright (C) 2005-2007 Nikos Kouremenos <kourem AT gmail.com>
# Copyright (C) 2006 Dimitur Kirov <dkirov AT gmail.com>
# Copyright (C) 2008-2009 Julien Pivotto <roidelapluie AT gmail.com>
#
# This file is part of Gajim.
#
# Gajim is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; version 3 only.
#
# Gajim is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Gajim. If not, see <http://www.gnu.org/licenses/>.
import gc
from gi.repository import Gtk
from gi.repository import GLib
from gi.repository import GObject
from gi.repository import Pango
from gajim.common import app
from gajim.common.i18n import _
from gajim import gtkgui_helpers
if app.is_installed('GSPELL'):
from gi.repository import Gspell
class MessageTextView(Gtk.TextView):
"""
Class for the message textview (where user writes new messages) for
chat/groupchat windows
"""
__gsignals__ = {
'text-changed': (GObject.SIGNAL_RUN_LAST, None, (Gtk.TextBuffer,))
}
UNDO_LIMIT = 20
PLACEHOLDER = _('Write a message…')
def __init__(self):
Gtk.TextView.__init__(self)
# set properties
self.set_border_width(3)
self.set_accepts_tab(True)
self.set_editable(True)
self.set_cursor_visible(True)
self.set_wrap_mode(Gtk.WrapMode.WORD_CHAR)
self.set_left_margin(2)
self.set_right_margin(2)
self.set_pixels_above_lines(2)
self.set_pixels_below_lines(2)
self.get_style_context().add_class('gajim-conversation-font')
# set undo list
self.undo_list = []
# needed to know if we undid something
self.undo_pressed = False
buffer_ = self.get_buffer()
buffer_.connect('changed', self._on_buffer_changed)
self._last_text = ''
self.begin_tags = {}
self.end_tags = {}
self.color_tags = []
self.fonts_tags = []
self.other_tags = {}
self.placeholder_tag = buffer_.create_tag('placeholder')
self.placeholder_tag.set_property('foreground_rgba',
gtkgui_helpers.Color.GREY)
self.other_tags['bold'] = buffer_.create_tag('bold')
self.other_tags['bold'].set_property('weight', Pango.Weight.BOLD)
self.begin_tags['bold'] = '<strong>'
self.end_tags['bold'] = '</strong>'
self.other_tags['italic'] = buffer_.create_tag('italic')
self.other_tags['italic'].set_property('style', Pango.Style.ITALIC)
self.begin_tags['italic'] = '<em>'
self.end_tags['italic'] = '</em>'
self.other_tags['underline'] = buffer_.create_tag('underline')
self.other_tags['underline'].set_property('underline', Pango.Underline.SINGLE)
self.begin_tags['underline'] = '<span style="text-decoration: underline;">'
self.end_tags['underline'] = '</span>'
self.other_tags['strike'] = buffer_.create_tag('strike')
self.other_tags['strike'].set_property('strikethrough', True)
self.begin_tags['strike'] = '<span style="text-decoration: line-through;">'
self.end_tags['strike'] = '</span>'
self.connect('paste-clipboard', self._paste_clipboard)
self.connect_after('paste-clipboard', self._after_paste_clipboard)
self.connect('focus-in-event', self._on_focus_in)
self.connect('focus-out-event', self._on_focus_out)
start = buffer_.get_bounds()[0]
buffer_.insert_with_tags(
start, self.PLACEHOLDER, self.placeholder_tag)
def _on_buffer_changed(self, *args):
text = self.get_text()
# Because of inserting and removing PLACEHOLDER text
# the signal becomes unreliable when determining if the user
# typed in new text. So we send our own signal depending on if
# there is real new text that is not the PLACEHOLDER
if text != self._last_text:
self.emit('text-changed', self.get_buffer())
self._last_text = text
def has_text(self):
buf = self.get_buffer()
start, end = buf.get_bounds()
text = buf.get_text(start, end, True)
return text not in (self.PLACEHOLDER, '')
def get_text(self):
# gets the text if its not PLACEHOLDER
buf = self.get_buffer()
start, end = buf.get_bounds()
text = self.get_buffer().get_text(start, end, True)
if text == self.PLACEHOLDER:
return ''
return text
def is_placeholder(self):
buf = self.get_buffer()
start, end = buf.get_bounds()
text = buf.get_text(start, end, True)
return text == self.PLACEHOLDER
def _on_focus_in(self, *args):
if self.is_placeholder():
self.get_buffer().set_text('')
self.toggle_speller(True)
def _on_focus_out(self, *args):
buf = self.get_buffer()
start, end = buf.get_bounds()
text = buf.get_text(start, end, True)
if text == '':
buf.insert_with_tags(
start, self.PLACEHOLDER, self.placeholder_tag)
self.toggle_speller(False)
def toggle_speller(self, activate):
if app.is_installed('GSPELL') and app.config.get('use_speller'):
spell_view = Gspell.TextView.get_from_gtk_text_view(self)
spell_view.set_inline_spell_checking(activate)
def remove_placeholder(self):
self._on_focus_in()
@staticmethod
def _paste_clipboard(textview):
if textview.is_placeholder():
textview.get_buffer().set_text('')
@staticmethod
def _after_paste_clipboard(textview):
buffer_ = textview.get_buffer()
mark = buffer_.get_insert()
iter_ = buffer_.get_iter_at_mark(mark)
if iter_.get_offset() == buffer_.get_end_iter().get_offset():
GLib.idle_add(gtkgui_helpers.scroll_to_end, textview.get_parent())
def make_clickable_urls(self, text):
_buffer = self.get_buffer()
start = 0
end = 0
index = 0
new_text = ''
iterator = app.interface.link_pattern_re.finditer(text)
for match in iterator:
start, end = match.span()
url = text[start:end]
if start != 0:
text_before_special_text = text[index:start]
else:
text_before_special_text = ''
# we insert normal text
new_text += text_before_special_text + \
'<a href="'+ url +'">' + url + '</a>'
index = end # update index
if end < len(text):
new_text += text[end:]
return new_text # the position after *last* special text
def get_active_tags(self):
start = self.get_active_iters()[0]
active_tags = []
for tag in start.get_tags():
active_tags.append(tag.get_property('name'))
return active_tags
def get_active_iters(self):
_buffer = self.get_buffer()
return_val = _buffer.get_selection_bounds()
if return_val: # if sth was selected
start, finish = return_val[0], return_val[1]
else:
start, finish = _buffer.get_bounds()
return (start, finish)
def set_tag(self, tag):
_buffer = self.get_buffer()
start, finish = self.get_active_iters()
if start.has_tag(self.other_tags[tag]):
_buffer.remove_tag_by_name(tag, start, finish)
else:
if tag == 'underline':
_buffer.remove_tag_by_name('strike', start, finish)
elif tag == 'strike':
_buffer.remove_tag_by_name('underline', start, finish)
_buffer.apply_tag_by_name(tag, start, finish)
def clear_tags(self):
_buffer = self.get_buffer()
start, finish = self.get_active_iters()
_buffer.remove_all_tags(start, finish)
def color_set(self, widget, response):
if response in (-6, -4):
widget.destroy()
return
color = widget.get_property('rgba')
widget.destroy()
_buffer = self.get_buffer()
# Create #aabbcc color string from rgba color
color_string = '#%02X%02X%02X' % (round(color.red*255),
round(color.green*255), round(color.blue*255))
tag_name = 'color' + color_string
if not tag_name in self.color_tags:
tagColor = _buffer.create_tag(tag_name)
tagColor.set_property('foreground', color_string)
self.begin_tags[tag_name] = '<span style="color: %s;">' % color_string
self.end_tags[tag_name] = '</span>'
self.color_tags.append(tag_name)
start, finish = self.get_active_iters()
for tag in self.color_tags:
_buffer.remove_tag_by_name(tag, start, finish)
_buffer.apply_tag_by_name(tag_name, start, finish)
def font_set(self, widget, response, start, finish):
if response in (-6, -4):
widget.destroy()
return
font = widget.get_font()
font_desc = widget.get_font_desc()
family = font_desc.get_family()
size = font_desc.get_size()
size = size / Pango.SCALE
weight = font_desc.get_weight()
style = font_desc.get_style()
widget.destroy()
_buffer = self.get_buffer()
tag_name = 'font' + font
if not tag_name in self.fonts_tags:
tagFont = _buffer.create_tag(tag_name)
tagFont.set_property('font', family + ' ' + str(size))
self.begin_tags[tag_name] = \
'<span style="font-family: ' + family + '; ' + \
'font-size: ' + str(size) + 'px">'
self.end_tags[tag_name] = '</span>'
self.fonts_tags.append(tag_name)
for tag in self.fonts_tags:
_buffer.remove_tag_by_name(tag, start, finish)
_buffer.apply_tag_by_name(tag_name, start, finish)
if weight == Pango.Weight.BOLD:
_buffer.apply_tag_by_name('bold', start, finish)
else:
_buffer.remove_tag_by_name('bold', start, finish)
if style == Pango.Style.ITALIC:
_buffer.apply_tag_by_name('italic', start, finish)
else:
_buffer.remove_tag_by_name('italic', start, finish)
def get_xhtml(self):
_buffer = self.get_buffer()
old = _buffer.get_start_iter()
tags = {}
tags['bold'] = False
iter_ = _buffer.get_start_iter()
old = _buffer.get_start_iter()
text = ''
modified = False
def xhtml_special(text):
text = text.replace('<', '<')
text = text.replace('>', '>')
text = text.replace('&', '&')
text = text.replace('\n', '<br />')
return text
for tag in iter_.get_toggled_tags(True):
tag_name = tag.get_property('name')
if tag_name not in self.begin_tags:
continue
text += self.begin_tags[tag_name]
modified = True
while (iter_.forward_to_tag_toggle(None) and not iter_.is_end()):
text += xhtml_special(_buffer.get_text(old, iter_, True))
old.forward_to_tag_toggle(None)
new_tags, old_tags, end_tags = [], [], []
for tag in iter_.get_toggled_tags(True):
tag_name = tag.get_property('name')
if tag_name not in self.begin_tags:
continue
new_tags.append(tag_name)
modified = True
for tag in iter_.get_tags():
tag_name = tag.get_property('name')
if tag_name not in self.begin_tags or tag_name not in self.end_tags:
continue
if tag_name not in new_tags:
old_tags.append(tag_name)
for tag in iter_.get_toggled_tags(False):
tag_name = tag.get_property('name')
if tag_name not in self.end_tags:
continue
end_tags.append(tag_name)
for tag in old_tags:
text += self.end_tags[tag]
for tag in end_tags:
text += self.end_tags[tag]
for tag in new_tags:
text += self.begin_tags[tag]
for tag in old_tags:
text += self.begin_tags[tag]
text += xhtml_special(_buffer.get_text(old, _buffer.get_end_iter(), True))
for tag in iter_.get_toggled_tags(False):
tag_name = tag.get_property('name')
if tag_name not in self.end_tags:
continue
text += self.end_tags[tag_name]
if modified:
return '<p>' + self.make_clickable_urls(text) + '</p>'
return None
def replace_emojis(self):
theme = app.config.get('emoticons_theme')
if not theme or theme == 'font':
return
def replace(anchor):
if anchor is None:
return
image = anchor.get_widgets()[0]
if hasattr(image, 'codepoint'):
# found emoji
self.replace_char_at_iter(iter_, image.codepoint)
image.destroy()
iter_ = self.get_buffer().get_start_iter()
replace(iter_.get_child_anchor())
while iter_.forward_char():
replace(iter_.get_child_anchor())
def replace_char_at_iter(self, iter_, new_char):
buffer_ = self.get_buffer()
iter_2 = iter_.copy()
iter_2.forward_char()
buffer_.delete(iter_, iter_2)
buffer_.insert(iter_, new_char)
def insert_emoji(self, codepoint, pixbuf):
self.remove_placeholder()
buffer_ = self.get_buffer()
if buffer_.get_char_count():
# buffer contains text
buffer_.insert_at_cursor(' ')
insert_mark = buffer_.get_insert()
insert_iter = buffer_.get_iter_at_mark(insert_mark)
if pixbuf is None:
buffer_.insert(insert_iter, codepoint)
else:
anchor = buffer_.create_child_anchor(insert_iter)
image = Gtk.Image.new_from_pixbuf(pixbuf)
image.codepoint = codepoint
image.show()
self.add_child_at_anchor(image, anchor)
buffer_.insert_at_cursor(' ')
def destroy(self):
GLib.idle_add(gc.collect)
def clear(self, widget=None):
"""
Clear text in the textview
"""
_buffer = self.get_buffer()
start, end = _buffer.get_bounds()
_buffer.delete(start, end)
def save_undo(self, text):
self.undo_list.append(text)
if len(self.undo_list) > self.UNDO_LIMIT:
del self.undo_list[0]
self.undo_pressed = False
def undo(self, widget=None):
"""
Undo text in the textview
"""
_buffer = self.get_buffer()
if self.undo_list:
_buffer.set_text(self.undo_list.pop())
self.undo_pressed = True
def get_sensitive(self):
# get sensitive is not in GTK < 2.18
try:
return super(MessageTextView, self).get_sensitive()
except AttributeError:
return self.get_property('sensitive')