indicator-chars.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 #
   4 # Very simple chars indicator.
   5 # Author: Tobias Schlitt <toby@php.net>
   6 #
   7 # Copyright (c) 2011, Tobias Schlitt
   8 # All rights reserved.
   9 #
  10 # Redistribution and use in source and binary forms, with or without
  11 # modification, are permitted provided that the following conditions are met:
  12 #
  13 # Redistributions of source code must retain the above copyright notice,
  14 # this list of conditions and the following disclaimer.  Redistributions
  15 # in binary form must reproduce the above copyright notice, this list of
  16 # conditions and the following disclaimer in the documentation and/or
  17 # other materials provided with the distribution.
  18 #
  19 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  22 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  23 # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  24 # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  25 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  26 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28 # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  30 # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  31 # DAMAGE.
  32
  33 import os
  34 import re
  35 import gtk
  36 import gio
  37 import signal
  38 import subprocess
  39 import appindicator
  40
  41 APP_NAME = 'indicator-chars'
  42 APP_VERSION = '0.2'
  43
  44 class IndicatorChars:
  45     CHARS_PATH = os.path.join(os.getenv('HOME'), '.indicator-chars')
  46     SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
  47
  48     submenu_title_pattern = re.compile(r'\[([^]]+)\] *')
  49     description_pattern = re.compile(r' *(\([^)]+\)) *')
  50
  51     def __init__(self):
  52         self.ind = appindicator.Indicator(
  53             # Custom icon seems to doesn't work on my Ubuntu 12.04 LTS running Unity 2D
  54             #"Chars", os.path.join(self.SCRIPT_DIR, 'light16x16.png'),
  55             # So fallback to an referenced theme's icon name
  56             "Chars", "accessories-character-map",
  57             appindicator.CATEGORY_APPLICATION_STATUS)
  58         self.ind.set_status(appindicator.STATUS_ACTIVE)
  59
  60         self.update_menu()
  61
  62     def create_menu_item(self, label):
  63         item = gtk.MenuItem()
  64         item.set_label(label)
  65         return item
  66
  67     def on_chars_changed(self, filemonitor, file, other_file, event_type):
  68         if event_type == gio.FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
  69             print 'Characters changed, updating menu...'
  70             self.update_menu()
  71
  72     def update_menu(self, widget = None, data = None):
  73         try:
  74             charDef = open(self.CHARS_PATH).readlines()
  75         except IOError:
  76             charDef = []
  77
  78         # Create menu
  79         menu = gtk.Menu()
  80         self.ind.set_menu(menu)
  81
  82         for charLine in charDef:
  83             charLine = unicode(charLine)
  84             charLine = charLine.strip()
  85             submenu_match = self.submenu_title_pattern.match(charLine)
  86             if submenu_match:
  87                 submenu_title = submenu_match.group(1)
  88                 # remove title part from remainder:
  89                 charLine = charLine[submenu_match.end():]
  90             else:
  91                 submenu_title = ''.join(
  92                     self.description_pattern.split(charLine)[::2])
  93             parentItem = self.create_menu_item(submenu_title)
  94             subMenu = gtk.Menu()
  95             while charLine:
  96                 char = charLine[0]
  97                 charLine = charLine[1:]
  98                 description_match = self.description_pattern.match(charLine)
  99                 if description_match:
 100                     item_title = char + ' ' + description_match.group(1)
 101                     # remove description part from remainder:
 102                     charLine = charLine[description_match.end():]
 103                 else:
 104                     item_title = char
 105                 subItem = self.create_menu_item(item_title)
 106                 subItem.connect("activate", self.on_char_click, char)
 107                 subMenu.append(subItem)
 108             parentItem.set_submenu(subMenu)
 109             menu.append(parentItem)
 110
 111         menu.append(gtk.SeparatorMenuItem())
 112         quit_item = self.create_menu_item('Quit')
 113         quit_item.connect("activate", self.on_quit)
 114         menu.append(quit_item)
 115
 116         # Show the menu
 117         menu.show_all()
 118
 119     def on_char_click(self, widget, char):
 120         cb = gtk.Clipboard(selection="PRIMARY")
 121         cb.set_text(char)
 122
 123     def on_quit(self, widget):
 124         gtk.main_quit()
 125
 126
 127 if __name__ == "__main__":
 128     # Catch CTRL-C
 129     signal.signal(signal.SIGINT, lambda signal, frame: gtk.main_quit())
 130
 131     # Run the indicator
 132     i = IndicatorChars()
 133
 134     # Monitor bookmarks changes
 135     file = gio.File(i.CHARS_PATH)
 136     monitor = file.monitor_file()
 137     monitor.connect("changed", i.on_chars_changed)
 138
 139     # Main gtk loop
 140     gtk.main()