indicator-chars.py

   1 #!/usr/bin/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 # sudo apt-get install python-appindicator
  40 import appindicator
  41
  42 APP_NAME = 'indicator-chars'
  43 APP_VERSION = '0.2'
  44
  45 class IndicatorChars:
  46     CHARS_PATH = os.path.join(os.getenv('HOME'), '.indicator-chars')
  47     SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
  48
  49     submenu_title_pattern = re.compile(r'\[([^]]+)\] *')
  50     description_pattern = re.compile(r' *(\([^)]+\)) *')
  51
  52     def __init__(self):
  53         self.ind = appindicator.Indicator(
  54             "Chars", os.path.join(self.SCRIPT_DIR, 'light16x16.png'),
  55             appindicator.CATEGORY_APPLICATION_STATUS)
  56         self.ind.set_status(appindicator.STATUS_ACTIVE)
  57
  58         self.update_menu()
  59
  60     def create_menu_item(self, label):
  61         item = gtk.MenuItem()
  62         item.set_label(label)
  63         return item
  64
  65     def on_chars_changed(self, filemonitor, file, other_file, event_type):
  66         if event_type == gio.FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
  67             print 'Characters changed, updating menu...'
  68             self.update_menu()
  69
  70     def update_menu(self, widget = None, data = None):
  71         try:
  72             charDef = open(self.CHARS_PATH).readlines()
  73         except IOError:
  74             charDef = []
  75
  76         # Create menu
  77         menu = gtk.Menu()
  78
  79         for charLine in charDef:
  80             charLine = unicode(charLine)
  81             charLine = charLine.strip()
  82             submenu_match = self.submenu_title_pattern.match(charLine)
  83             if submenu_match:
  84                 submenu_title = submenu_match.group(1)
  85                 # remove title part from remainder:
  86                 charLine = charLine[submenu_match.end():]
  87             else:
  88                 submenu_title = ''.join(
  89                     self.description_pattern.split(charLine)[::2])
  90             parentItem = self.create_menu_item(submenu_title)
  91             subMenu = gtk.Menu()
  92             while charLine:
  93                 char = charLine[0]
  94                 charLine = charLine[1:]
  95                 description_match = self.description_pattern.match(charLine)
  96                 if description_match:
  97                     item_title = char + ' ' + description_match.group(1)
  98                     # remove description part from remainder:
  99                     charLine = charLine[description_match.end():]
 100                 else:
 101                     item_title = char
 102                 subItem = self.create_menu_item(item_title)
 103                 subItem.connect("activate", self.on_char_click, char)
 104                 subMenu.append(subItem)
 105             parentItem.set_submenu(subMenu)
 106             menu.append(parentItem)
 107
 108         menu.append(gtk.SeparatorMenuItem())
 109         quit_item = self.create_menu_item('Quit')
 110         quit_item.connect("activate", self.on_quit)
 111         menu.append(quit_item)
 112
 113         # Show the menu
 114         self.ind.set_menu(menu)
 115         menu.show_all()
 116
 117     def on_char_click(self, widget, char):
 118         cb = gtk.Clipboard(selection="PRIMARY")
 119         cb.set_text(char)
 120
 121     def on_quit(self, widget):
 122         gtk.main_quit()
 123
 124
 125 if __name__ == "__main__":
 126     # Catch CTRL-C
 127     signal.signal(signal.SIGINT, lambda signal, frame: gtk.main_quit())
 128
 129     # Run the indicator
 130     i = IndicatorChars()
 131
 132     # Monitor bookmarks changes
 133     file = gio.File(i.CHARS_PATH)
 134     monitor = file.monitor_file()
 135     monitor.connect("changed", i.on_chars_changed)
 136
 137     # Main gtk loop
 138     gtk.main()