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[syntax_highlight] Remove plugin (integrated into core now)

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GNU GENERAL PUBLIC LICENSE
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from .syntax_highlight import SyntaxHighlighterPlugin

328
syntax_highlight/chat_syntax_highlighter.py
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import logging
import re
import pygments
from pygments.token import Comment
from pygments.styles import get_style_by_name
from gi.repository import Gtk
from gi.repository import Gdk
from gajim.plugins.plugins_i18n import _
from syntax_highlight.gtkformatter import GTKFormatter
from syntax_highlight.types import MatchType
from syntax_highlight.types import LineBreakOptions
from syntax_highlight.types import CodeMarkerOptions
from syntax_highlight.types import PLUGIN_INTERNAL_NONE_LEXER_ID
log = logging.getLogger('gajim.p.syntax_highlight')
class ChatSyntaxHighlighter:
def __init__(self, plugin_config, highlighter_config, chat_control):
self.textview = chat_control.conv_textview
self._plugin_config = plugin_config
self._highlighter_config = highlighter_config
self._chat_control = chat_control
self._chat_control.msg_textview.connect(
'populate-popup', self._on_msg_textview_populate_popup)
def update_config(self, plugin_config):
self._plugin_config = plugin_config
def _on_msg_textview_populate_popup(self, _textview, menu):
item = Gtk.MenuItem.new_with_mnemonic(_('_Paste as Code'))
menu.append(item)
id_ = item.connect('activate', self._paste_as_code)
self._chat_control.handlers[id_] = item
item = Gtk.MenuItem.new_with_mnemonic(_('Paste as Code _Block'))
menu.append(item)
id_ = item.connect('activate', self._paste_as_code_block)
self._chat_control.handlers[id_] = item
menu.show_all()
@staticmethod
def _get_clipboard_text():
clipboard = Gtk.Clipboard.get(Gdk.SELECTION_CLIPBOARD)
return clipboard.wait_for_text()
def _insert_paste(self, text):
message_buffer = self._chat_control.msg_textview.get_buffer()
message_buffer.insert_at_cursor(text)
def _paste_as_code(self, _item):
text = self._get_clipboard_text()
self._insert_paste(f'`{text}`')
def _paste_as_code_block(self, _item):
text = self._get_clipboard_text()
self._insert_paste(f'```\n{text}\n```')
@staticmethod
def _hide_code_markup(buf, start, end):
tag = buf.get_tag_table().lookup('hide_code_markup')
if tag is None:
tag = Gtk.TextTag.new('hide_code_markup')
tag.set_property('invisible', True)
buf.get_tag_table().add(tag)
buf.apply_tag_by_name('hide_code_markup', start, end)
def _check_line_break(self, is_multiline):
line_break = self._plugin_config['line_break'].value
return (line_break == LineBreakOptions.ALWAYS) \
or (is_multiline and line_break == LineBreakOptions.MULTILINE)
def _format_code(self, buf, s_tag, s_code, e_tag, e_code, language):
style = self._plugin_config['style']
if self._plugin_config['code_marker'] == CodeMarkerOptions.HIDE:
self._hide_code_markup(buf, s_tag, s_code)
self._hide_code_markup(buf, e_code, e_tag)
else:
comment_tag = GTKFormatter.create_tag_for_token(
Comment, get_style_by_name(style))
buf.get_tag_table().add(comment_tag)
buf.apply_tag(comment_tag, s_tag, s_code)
buf.apply_tag(comment_tag, e_tag, e_code)
code = s_code.get_text(e_code)
log.debug('full text to encode: %s.', code)
start_mark = buf.create_mark(None, s_code, False)
lexer = None
if language is None:
lexer = self._highlighter_config.get_default_lexer()
log.info('No Language specified. '
'Falling back to default lexer: %s.',
self._highlighter_config.get_default_lexer_name())
else:
log.debug('Using lexer for %s.', str(language))
lexer = self._highlighter_config.get_lexer_with_fallback(language)
if lexer is None:
iterator = buf.get_iter_at_mark(start_mark)
buf.insert(iterator, '\n')
elif lexer != PLUGIN_INTERNAL_NONE_LEXER_ID:
tokens = pygments.lex(code, lexer)
formatter = GTKFormatter(style=style, start_mark=start_mark)
pygments.format(tokens, formatter, buf)
@staticmethod
def _find_multiline_matches(text):
start = None
matches = []
# Less strict, allow prefixed whitespaces:
# for i in re.finditer(r'(?:^|\n)[ |\t]*(```)\S*[ |\t]*(?:\n|$)',
# text, re.DOTALL):
for i in re.finditer(r'(?:^|\n)(```)\S*(?:\n|$)', text, re.DOTALL):
if start is None:
start = i
elif re.match(r'^\n```', i.group(0)) is not None:
matches.append(
(start.start(), i.end(), text[start.start():i.end()]))
start = None
else:
# not an end...
continue
return matches
@staticmethod
def _find_inline_matches(text):
"""
Inline code is highlighted if the start marker is precedded by a start
of line, a whitespace character or either of the other span markers
defined in XEP-0393.
The same applies mirrored to the end marker.
"""
return [(i.start(1), i.end(1), i.group(1)) for i in
re.finditer(r'(?:^|\s|\*|~|_)(`((?!`).+?)`)(?:\s|\*|~|_|$)',
text)]
@staticmethod
def _merge_match_groups(real_text, inline_matches, multiline_matches):
it_inline = iter(inline_matches)
it_multi = iter(multiline_matches)
length = len(real_text)
# Just to get cleaner code below...
def _get_next(iterator):
return next(iterator, (length, length, ''))
# In order to simplify the process, we use the 'length' here.
cur_inline = _get_next(it_inline)
cur_multi = _get_next(it_multi)
pos = 0
# This will contain tuples with parts of the input and its
# classification
parts = []
while pos < length:
log.debug('-> in: %s', str(cur_inline))
log.debug('-> mu: %s', str(cur_multi))
# selected = (start, end, type)
if cur_inline[0] < cur_multi[0]:
selected = (cur_inline[0], cur_inline[1], MatchType.INLINE)
elif cur_multi[0] < length:
selected = (cur_multi[0], cur_multi[1], MatchType.MULTILINE)
else:
selected = (pos, length, MatchType.TEXT)
log.debug('--> select: %s', str(selected))
# Handle plain text string parts (and unforseen errors...)
if pos < selected[0]:
end = selected[0] if selected[0] != pos else selected[1]
parts.append((real_text[pos:end], MatchType.TEXT))
pos = selected[0]
elif pos > selected[0]:
log.error('Should not happen, position > found match.')
# Cut out and append selected text segment
parts.append((real_text[selected[0]:selected[1]], selected[2]))
pos = selected[1]
# Depending on the match type, we have to forward the iterators.
# Also, forward the other one, if regions overlap or we took over.
if selected[2] == MatchType.INLINE:
if cur_multi[0] < cur_inline[1]:
cur_multi = _get_next(it_multi)
cur_inline = _get_next(it_inline)
elif selected[2] == MatchType.MULTILINE:
if cur_inline[0] < cur_multi[1]:
cur_inline = _get_next(it_inline)
cur_multi = _get_next(it_multi)
return parts
def process_text(self, real_text, other_tags, _graphics, iter_,
_additional):
def _fix_newline(char, marker_len_no_newline, force=False):
fixed = (marker_len_no_newline, '')
if char == '\n':
fixed = (marker_len_no_newline + 1, '')
elif force:
fixed = (marker_len_no_newline + 1, '\n')
return fixed
buf = self.textview.tv.get_buffer()
# First, try to find inline or multiline code snippets
inline_matches = self._find_inline_matches(real_text)
multiline_matches = self._find_multiline_matches(real_text)
if not inline_matches and not multiline_matches:
log.debug('Stopping early, since there is no code block in it...')
return
iterator = iter_ if iter_ is not None else buf.get_end_iter()
# Create a start marker with left gravity before inserting text.
start_mark = buf.create_mark('SHP_start', iterator, True)
end_mark = buf.create_mark('SHP_end', iterator, False)
insert_newline_for_multiline = self._check_line_break(True)
insert_newline_for_inline = self._check_line_break(False)
split_text = self._merge_match_groups(
real_text, inline_matches, multiline_matches)
buf.begin_user_action()
for num, (text_to_insert, match_type) in enumerate(split_text):
language = None
end_of_message = num == (len(split_text) - 1)
if match_type == MatchType.TEXT:
self.textview.detect_and_print_special_text(
text_to_insert, other_tags, graphics=_graphics,
iter_=iterator, additional_data=_additional)
else:
if match_type == MatchType.MULTILINE:
language_match = re.search(
'\n*```([^\n]*)\n', text_to_insert, re.DOTALL)
language = None if language_match is None \
else language_match.group(1)
language_len = 0 if language is None else len(language)
# We account the language word width for the front marker
front = _fix_newline(
text_to_insert[0],
3 + language_len,
insert_newline_for_multiline)
back = _fix_newline(
text_to_insert[-1],
3,
insert_newline_for_multiline and not end_of_message)
else:
front = _fix_newline(
text_to_insert[0],
1,
insert_newline_for_inline)
back = _fix_newline(
text_to_insert[-1],
1,
insert_newline_for_inline and not end_of_message)
marker_widths = (front[0], back[0])
text_to_insert = ''.join([front[1], text_to_insert, back[1]])
# Insertion invalidates iterator, let's use our start mark...
self._insert_and_format_code(
buf, text_to_insert, language, marker_widths, start_mark,
end_mark, other_tags)
iterator = buf.get_iter_at_mark(end_mark)
# The current end of the buffer's contents is the start for the
# next iteration
buf.move_mark(start_mark, iterator)
buf.delete_mark(start_mark)
buf.delete_mark(end_mark)
buf.end_user_action()
# We have to make sure this is the last thing we do (i.e. no calls to
# the other textview methods no more from here on), because the
# print_special_text method is resetting the plugin_modified variable.
self.textview.plugin_modified = True
def _insert_and_format_code(self, buf, insert_text, language, marker,
start_mark, end_mark, other_tags=None):
start_iter = buf.get_iter_at_mark(start_mark)
if other_tags:
buf.insert_with_tags_by_name(start_iter, insert_text, *other_tags)
else:
buf.insert(start_iter, insert_text)
tag_start = buf.get_iter_at_mark(start_mark)
tag_end = buf.get_iter_at_mark(end_mark)
s_code = tag_start.copy()
e_code = tag_end.copy()
s_code.forward_chars(marker[0])
e_code.backward_chars(marker[1])
log.debug('full text between tags: %s.', tag_start.get_text(tag_end))
self._format_code(buf, tag_start, s_code, tag_end, e_code, language)
self.textview.plugin_modified = True
# Set general code block format
tag = Gtk.TextTag.new()
bg_color = self._plugin_config['bgcolor']
if self._plugin_config['bgcolor_override']:
tag.set_property('background', bg_color)
tag.set_property('paragraph-background', bg_color)
tag.set_property('font', self._plugin_config['font'])
buf.get_tag_table().add(tag)
buf.apply_tag(tag, tag_start, tag_end)

206
syntax_highlight/config_dialog.py
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import logging
import re
import math
from pathlib import Path
import pygments
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository.Pango import FontDescription
from gi.repository.Pango import Style
from gi.repository.Pango import SCALE
from gajim.common import app
from gajim.plugins.plugins_i18n import _
from gajim.plugins.helpers import get_builder
from syntax_highlight.gtkformatter import GTKFormatter
from syntax_highlight.types import LineBreakOptions
from syntax_highlight.types import CodeMarkerOptions
from syntax_highlight.types import PLUGIN_INTERNAL_NONE_LEXER_ID
log = logging.getLogger('gajim.p.syntax_highlight')
PLUGIN_INTERNAL_NONE_LEXER = ('None (monospace only)',
PLUGIN_INTERNAL_NONE_LEXER_ID)
class SyntaxHighlighterPluginConfig(Gtk.ApplicationWindow):
def __init__(self, plugin, transient):
Gtk.ApplicationWindow.__init__(self)
self.set_application(app.app)
self.set_show_menubar(False)
self.set_title(_('Syntax Highlighter Configuration'))
self.set_transient_for(transient)
self.set_default_size(400, 500)
self.set_type_hint(Gdk.WindowTypeHint.DIALOG)
self.set_modal(True)
self.set_destroy_with_parent(True)
ui_path = Path(__file__).parent
self._ui = get_builder(ui_path.resolve() / 'config_dialog.ui')
self.add(self._ui.main_box)
self.show_all()
self._ui.preview_textview.get_buffer().connect(
'insert-text', self._on_preview_text_inserted)
self._ui.connect_signals(self)
self._lexer_liststore = Gtk.ListStore(str)
self._ui.default_lexer_combobox.set_model(self._lexer_liststore)
self._style_liststore = Gtk.ListStore(str)
self._ui.style_combobox.set_model(self._style_liststore)
self._plugin = plugin
self._lexers = plugin.highlighter_config.get_lexer_list()
self._styles = plugin.highlighter_config.get_styles_list()
self._provider = None
self._add_css_provider()
self._initialize()
def _initialize(self):
default_lexer = self._plugin.highlighter_config.get_default_lexer_name()
for i, lexer in enumerate(self._lexers):
self._lexer_liststore.append([lexer[0]])
if lexer[1] == default_lexer:
self._ui.default_lexer_combobox.set_active(i)
for i, style in enumerate(self._styles):
self._style_liststore.append([style])
if style == self._plugin.config['style']:
self._ui.style_combobox.set_active(i)
self._ui.line_break_combobox.set_active(
self._plugin.config['line_break'].value)
self._ui.code_marker_combobox.set_active(
self._plugin.config['code_marker'])
self._ui.font_button.set_font(self._plugin.config['font'])
bg_override_enabled = self._plugin.config['bgcolor_override']
self._ui.bg_color_checkbutton.set_active(bg_override_enabled)
self._ui.bg_color_colorbutton.set_sensitive(bg_override_enabled)
color = Gdk.RGBA()
if color.parse(self._plugin.config['bgcolor']):
self._ui.bg_color_colorbutton.set_rgba(color)
self._update_preview()
def _lexer_changed(self, widget):
self._plugin.highlighter_config.set_default_lexer(
self._lexers[widget.get_active()][1])
self._update_preview()
def _line_break_changed(self, widget):
self._plugin.config['line_break'] = LineBreakOptions(
widget.get_active())
self._update_preview()
def _code_marker_changed(self, widget):
self._plugin.config['code_marker'] = CodeMarkerOptions(
widget.get_active())
def _bg_color_enabled(self, widget):
override_color = widget.get_active()
self._plugin.config['bgcolor_override'] = override_color
self._ui.bg_color_colorbutton.set_sensitive(override_color)
self._update_preview()
def _bg_color_changed(self, widget):
color = widget.get_rgba()
self._plugin.config['bgcolor'] = color.to_string()
self._update_preview()
def _style_changed(self, widget):
style = self._styles[widget.get_active()]
if style is not None and style != '':
self._plugin.config['style'] = style
self._update_preview()
def _font_changed(self, widget):
font = widget.get_font()
if font is not None and font != '':
self._plugin.config['font'] = font
self._update_preview()
def _update_preview(self):
self._format_preview_text()
def _on_preview_text_inserted(self, _buf, _iterator, text, length, *_args):
if (length == 1 and re.match(r'\s', text)) or length > 1:
self._format_preview_text()
def _add_css_provider(self):
self._context = self._ui.preview_textview.get_style_context()
self._provider = Gtk.CssProvider()
self._context.add_provider(
self._provider, Gtk.STYLE_PROVIDER_PRIORITY_USER)
self._context.add_class('syntax-preview')
def _format_preview_text(self):
buf = self._ui.preview_textview.get_buffer()
start_iter = buf.get_start_iter()
start_mark = buf.create_mark(None, start_iter, True)
buf.remove_all_tags(start_iter, buf.get_end_iter())
formatter = GTKFormatter(
style=self._plugin.config['style'], start_mark=start_mark)
code = start_iter.get_text(buf.get_end_iter())
lexer = self._plugin.highlighter_config.get_default_lexer()
if lexer != PLUGIN_INTERNAL_NONE_LEXER_ID:
tokens = pygments.lex(code, lexer)
pygments.format(tokens, formatter, buf)
buf.delete_mark(start_mark)
css = self._get_css()
self._provider.load_from_data(bytes(css.encode()))
def _get_css(self):
# Build CSS from Pango.FontDescription
description = FontDescription.from_string(self._plugin.config['font'])
size = description.get_size() / SCALE
style = self._get_string_from_pango_style(description.get_style())
weight = self._pango_to_css_weight(int(description.get_weight()))
family = description.get_family()
font = '%spt %s' % (size, family)
if self._plugin.config['bgcolor_override']:
color = self._plugin.config['bgcolor']
else:
color = '@theme_base_color'
css = '''
.syntax-preview {
font: %s;
font-weight: %s;
font-style: %s;
}
.syntax-preview > text {
background-color: %s;
}
''' % (font, weight, style, color)
return css
@staticmethod
def _pango_to_css_weight(number):
# Pango allows for weight values between 100 and 1000
# CSS allows only full hundred numbers like 100, 200 ..
number = int(number)
if number < 100:
return 100
if number > 900:
return 900
return int(math.ceil(number / 100.0)) * 100
@staticmethod
def _get_string_from_pango_style(style: Style) -> str:
if style == Style.NORMAL:
return 'normal'
if style == Style.ITALIC:
return 'italic'
# Style.OBLIQUE:
return 'oblique'

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syntax_highlight/config_dialog.ui
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<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.36.0 -->
<interface>
<requires lib="gtk+" version="3.22"/>
<object class="GtkTextBuffer"/>
<object class="GtkListStore" id="code_marker_selection">
<columns>
<!-- column-name column1 -->
<column type="gchararray"/>
</columns>
<data>
<row>
<col id="0" translatable="yes">Treat as code comment</col>
</row>
<row>
<col id="0" translatable="yes">Hide code markers</col>
</row>
</data>
</object>
<object class="GtkListStore" id="line_break_selection">
<columns>
<!-- column-name Text -->
<column type="gchararray"/>
</columns>
<data>
<row>
<col id="0" translatable="yes">Never</col>
</row>
<row>
<col id="0" translatable="yes">Always</col>
</row>
<row>
<col id="0" translatable="yes">Only around multi-line code blocks</col>
</row>
</data>
</object>
<object class="GtkTextBuffer" id="preview_textbuffer">
<property name="text" translatable="yes">// Test your highlighting here
# Test your highlighting here
/* Test your highlighting here */
% Test your highlighting here
; Test your highlighting here
&lt;!-- Test your highlighting here --&gt;</property>
</object>
<object class="GtkBox" id="main_box">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="border_width">18</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkGrid">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="margin_bottom">40</property>
<property name="row_spacing">6</property>
<property name="column_spacing">12</property>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">end</property>
<property name="label" translatable="yes">Default language for syntax highlighting</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">end</property>
<property name="label" translatable="yes">Insert line breaks around code blocks</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkComboBox" id="default_lexer_combobox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<signal name="changed" handler="_lexer_changed" swapped="no"/>
<child>
<object class="GtkCellRendererText" id="cellrenderertext1"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkComboBox" id="line_break_combobox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="model">line_break_selection</property>
<signal name="changed" handler="_line_break_changed" swapped="no"/>
<child>
<object class="GtkCellRendererText" id="cellrenderertext2"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkComboBox" id="style_combobox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<signal name="changed" handler="_style_changed" swapped="no"/>
<child>
<object class="GtkCellRendererText" id="cellrenderertext3"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">2</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">end</property>
<property name="label" translatable="yes">Select syntax highlighting style</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">2</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">end</property>
<property name="label" translatable="yes">Select code marker (the backticks) formatting</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">3</property>
</packing>
</child>
<child>
<object class="GtkComboBox" id="code_marker_combobox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="model">code_marker_selection</property>
<signal name="changed" handler="_code_marker_changed" swapped="no"/>
<child>
<object class="GtkCellRendererText" id="cellrenderertext4"/>
<attributes>
<attribute name="text">0</attribute>
</attributes>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">3</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">end</property>
<property name="label" translatable="yes">Select font for code snippets</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">4</property>
</packing>
</child>
<child>
<object class="GtkFontButton" id="font_button">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="font">Sans 12</property>
<property name="preview_text"/>
<property name="use_font">True</property>
<signal name="font-set" handler="_font_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">4</property>
</packing>
</child>
<child>
<object class="GtkCheckButton" id="bg_color_checkbutton">
<property name="label" translatable="yes">Set background color</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">False</property>
<property name="halign">end</property>
<property name="draw_indicator">True</property>
<signal name="toggled" handler="_bg_color_enabled" swapped="no"/>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">5</property>
</packing>
</child>
<child>
<object class="GtkColorButton" id="bg_color_colorbutton">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="halign">start</property>
<property name="title" translatable="yes">Choose the background color for code blocks</property>
<property name="show_editor">True</property>
<signal name="color-set" handler="_bg_color_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">5</property>
</packing>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">False</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkSeparator">
<property name="visible">True</property>
<property name="can_focus">False</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">center</property>
<property name="margin_top">6</property>
<property name="margin_bottom">6</property>
<property name="label" translatable="yes">Test here how code blocks will look like in the chat window</property>
<property name="xalign">0</property>
<style>
<class name="bold"/>
</style>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">2</property>
</packing>
</child>
<child>
<object class="GtkScrolledWindow">
<property name="height_request">200</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="shadow_type">in</property>
<child>
<object class="GtkTextView" id="preview_textview">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="wrap_mode">word-char</property>
<property name="left_margin">6</property>
<property name="right_margin">6</property>
<property name="top_margin">6</property>
<property name="bottom_margin">6</property>
<property name="buffer">preview_textbuffer</property>
</object>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">3</property>
</packing>
</child>
<child>
<object class="GtkSeparator">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="margin_top">20</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">4</property>
</packing>
</child>
</object>
</interface>

116
syntax_highlight/gtkformatter.py
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@@ -1,116 +0,0 @@
import logging
from gi.repository import Gtk
from gi.repository import Pango
from pygments.formatter import Formatter
log = logging.getLogger('gajim.p.syntax_highlight')
class GTKFormatter(Formatter):
name = 'GTK Formatter'
aliases = ['textbuffer', 'gtk']
filenames = []
def __init__(self, **options):
super(GTKFormatter, self).__init__(**options)
# Formatter.__init__(self, **options)
self.tags = {}
self.mark = options.get('start_mark', None)
@staticmethod
def create_tag_for_token(ttype, highlighting_style):
style = highlighting_style.style_for_token(ttype)
tag = Gtk.TextTag.new()
if 'bgcolor' in style and not style['bgcolor'] is None:
tag.set_property('background', '#%s' % style['bgcolor'])
if 'bold' in style and style['bold']:
tag.set_property('weight', Pango.Weight.BOLD)
if 'border' in style and not style['border'] is None:
pass
if 'color' in style and not style['color'] is None:
tag.set_property('foreground', '#%s' % style['color'])
if 'italic' in style and style['italic']:
tag.set_property('style', Pango.Style.ITALIC)
if 'mono' in style and not style['mono'] is None:
tag.set_property('family', 'Monospace')
tag.set_property('family-set', True)
if 'roman' in style and not style['roman'] is None:
pass
if 'sans' in style and not style['sans'] is None:
tag.set_property('family', 'Sans')
tag.set_property('family-set', True)
if 'underline' in style and style['underline']:
tag.set_property('underline', 'single')
return tag
def get_tag(self, ttype, buf):
"""
Creates, stores and returs a tag for a given token type.
This method ensures that a tag style is created only once.
Furthermore, the tag will be added to the given Gtk.TextBuffer's
tag table.
"""
tag = None
if ttype in self.tags:
tag = self.tags[ttype]
else:
tag = GTKFormatter.create_tag_for_token(ttype, self.style)
self.tags[ttype] = tag
buf.get_tag_table().add(tag)
return tag
def set_insert_pos_mark(self, mark):
self.mark = mark
def format(self, tokensource, outfile):
if not isinstance(outfile, Gtk.TextBuffer) or outfile is None:
log.warning('Did not get a buffer to format...')
return
buf = outfile
end_iter = buf.get_end_iter()
start_mark = self.mark
start_iter = buf.get_iter_at_mark(start_mark) if \
start_mark is not None else end_iter
last_ttype = None
last_start = start_iter
last_end = buf.get_end_iter()
last_fixed_start = last_start
reset = True
for ttype, value in tokensource:
search = None
if last_ttype is not None and ttype != last_ttype:
tag = self.get_tag(last_ttype, buf)
buf.apply_tag(tag, last_fixed_start, last_end)
search = last_end.forward_search(
value, Gtk.TextSearchFlags.TEXT_ONLY, end_iter)
reset = True
else:
# In case last_ttype is None, i.e. first loop walkthrough:
# last_start to end_iter is the full code block.
search = last_start.forward_search(
value, Gtk.TextSearchFlags.TEXT_ONLY, end_iter)
# Prepare for next iteration
last_ttype = ttype
if search is not None:
(last_start, last_end) = search
# If we've found the end of a sequence of similar type tokens
# or if we are in the first loop iteration, set the fixed point
if reset:
last_fixed_start = last_start
reset = False
else:
# Hm... Nothing found, but tags left? Seems there's nothing we
# can do now.
break

97
syntax_highlight/highlighter_config.py
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@@ -1,97 +0,0 @@
import logging
from pygments.lexers import get_lexer_by_name
from pygments.lexers import get_all_lexers
from pygments.styles import get_all_styles
from pygments.util import ClassNotFound
from syntax_highlight.types import PLUGIN_INTERNAL_NONE_LEXER_ID
log = logging.getLogger('gajim.p.syntax_highlight')
PLUGIN_INTERNAL_NONE_LEXER = ('None (monospace only)',
PLUGIN_INTERNAL_NONE_LEXER_ID)
class HighlighterConfig:
def __init__(self, plugin_config):
self._plugin_config = plugin_config
self._lexer_list = self._create_lexer_list()
self._style_list = []
for style in get_all_styles():
self._style_list.append(style)
self._style_list.sort()
self._default_lexer = None
self.set_default_lexer(self._plugin_config['default_lexer'])
@staticmethod
def _create_lexer_list():
# The list we create here contains the plain text name and the lexer's
# id string
lexers = []
# Iteration over get_all_lexers() seems to be broken somehow
# Workaround
all_lexers = get_all_lexers()
for lexer in all_lexers:
# We don't want to add lexers that we cant identify by name later
if lexer[1] is not None and lexer[1]:
lexers.append((lexer[0], lexer[1][0]))
lexers.sort()
# Insert our internal 'none' type at top of the list
lexers.insert(0, PLUGIN_INTERNAL_NONE_LEXER)
return lexers
@staticmethod
def get_lexer_by_name(name):
lexer = None
try:
lexer = get_lexer_by_name(name)
except ClassNotFound:
pass
return lexer
def get_lexer_with_fallback(self, language):
lexer = self.get_lexer_by_name(language)
if lexer is None:
log.info('Falling back to default lexer for %s.',
self.get_default_lexer_name())
lexer = self._default_lexer[1]
return lexer
def set_default_lexer(self, name):
if name != PLUGIN_INTERNAL_NONE_LEXER_ID:
lexer = get_lexer_by_name(name)
if lexer is None and self._default_lexer is None:
log.error('Failed to get default lexer by name.'
'Falling back to simply using the first lexer '
'in the list.')
lexer = self._lexer_list[0]
name = lexer[0]
self._default_lexer = (name, lexer)
if lexer is None and self._default_lexer is not None:
log.info('Failed to get default lexer by name, keeping '
'previous setting (lexer = %s).',
self._default_lexer[0])
name = self._default_lexer[0]
else:
self._default_lexer = (name, lexer)
else:
self._default_lexer = PLUGIN_INTERNAL_NONE_LEXER
self._plugin_config['default_lexer'] = name
def get_default_lexer(self):
return self._default_lexer[1]
def get_default_lexer_name(self):
return self._default_lexer[0]
def get_lexer_list(self):
return self._lexer_list
def get_styles_list(self):
return self._style_list

17
syntax_highlight/manifest.ini
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@@ -1,17 +0,0 @@
[info]
name: Source Code Syntax Highlight
short_name: syntax_highlight
version: 1.4.1
description: Source code syntax highlighting in the chat window.
Markdown-style syntax is supported, i.e. text inbetween `single backticks` is rendered as inline code.
```language
selection is possible in multi-line code snippets inbetween triple-backticks
Note the newlines in this case…
```
Changed settings will take effect after re-opening the message tab/window.
authors = Florian Muenchbach
homepage = https://dev.gajim.org/gajim/gajim-plugins/-/wikis/syntaxhighlightplugin
min_gajim_version: 1.4.0-dev1
max_gajim_version: 1.4.90

12
syntax_highlight/org.gajim.Gajim.Plugin.syntax_highlight.metainfo.xml
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@@ -1,12 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<component type="addon">
<id>org.gajim.Gajim.Plugin.syntax_highlight</id>
<extends>org.gajim.Gajim</extends>
<name>Source Code Syntax Highlight Plugin</name>
<summary>Source code syntax highlighting in the chat window</summary>
<url type="homepage">https://gajim.org/</url>
<metadata_license>CC-BY-SA-3.0</metadata_license>
<project_license>GPL-3.0</project_license>
<update_contact>gajim-devel_AT_gajim.org</update_contact>
</component>

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91
syntax_highlight/syntax_highlight.py
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@@ -1,91 +0,0 @@
import logging
from functools import partial
from gajim.plugins import GajimPlugin
from gajim.plugins.plugins_i18n import _
from syntax_highlight.types import LineBreakOptions
from syntax_highlight.types import CodeMarkerOptions
from syntax_highlight.types import PLUGIN_INTERNAL_NONE_LEXER_ID
log = logging.getLogger('gajim.p.syntax_highlight')
HAS_PYGMENTS = False
try:
from syntax_highlight.chat_syntax_highlighter import ChatSyntaxHighlighter
from syntax_highlight.config_dialog import SyntaxHighlighterPluginConfig
from syntax_highlight.highlighter_config import HighlighterConfig
HAS_PYGMENTS = True
except Exception as exception:
log.error('Could not load pygments: %s', exception)
class SyntaxHighlighterPlugin(GajimPlugin):
def init(self):
self.description = _(
'Source code syntax highlighting in the chat window.\n\n'
'Markdown-style syntax is supported, i.e. text inbetween '
'`single backticks` is rendered as inline code.\n'
'```language\n'
'selection is possible in multi-line code snippets inbetween '
'triple-backticks\n'
'Note the newlines in this case…\n'
'```\n\n'
'Changed settings will take effect after re-opening the message '
'tab/window.')
self.config_default_values = {
'default_lexer': (PLUGIN_INTERNAL_NONE_LEXER_ID, ''),
'line_break': (LineBreakOptions.MULTILINE, ''),
'style': ('default', ''),
'font': ('Monospace 10', ''),
'bgcolor': ('rgb(200, 200, 200)', ''),
'bgcolor_override': (True, ''),
'code_marker': (CodeMarkerOptions.AS_COMMENT, ''),
}
self.gui_extension_points = {
'chat_control_base': (
self._connect_chat_control,
self._disconnect_chat_control),
'print_real_text': (self._on_print_real_text, None)
}
if not HAS_PYGMENTS:
self.activatable = False
self.available_text = _('You are missing python-pygments.')
self.config_dialog = None
self._migrate_settings()
self._highlighters = {}
self.config_dialog = partial(SyntaxHighlighterPluginConfig, self)
self.highlighter_config = HighlighterConfig(self.config)
def _migrate_settings(self):
line_break = self.config['line_break']
if isinstance(line_break, int):
self.config['line_break'] = LineBreakOptions(line_break)
def _connect_chat_control(self, chat_control):
highlighter = ChatSyntaxHighlighter(
self.config, self.highlighter_config, chat_control)
self._highlighters[chat_control.control_id] = highlighter
def _disconnect_chat_control(self, chat_control):
highlighter = self._highlighters.get(chat_control.control_id)
if highlighter is not None:
del highlighter
self._highlighters.pop(chat_control.control_id, None)
def _on_print_real_text(self, text_view, real_text, other_tags, graphics,
iterator, additional):
for highlighter in self._highlighters.values():
if highlighter.textview != text_view:
continue
highlighter.process_text(
real_text, other_tags, graphics, iterator, additional)
return
def update_highlighters(self):
for highlighter in self._highlighters.values():
highlighter.update_config(self.config)

24
syntax_highlight/types.py
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@@ -1,24 +0,0 @@
from enum import Enum
from enum import IntEnum
from enum import unique
PLUGIN_INTERNAL_NONE_LEXER_ID = '_syntax_highlight_internal_none_type'
class MatchType(Enum):
INLINE = 0
MULTILINE = 1
TEXT = 2
@unique
class LineBreakOptions(IntEnum):
NEVER = 0
ALWAYS = 1
MULTILINE = 2
@unique
class CodeMarkerOptions(IntEnum):
AS_COMMENT = 0
HIDE = 1