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 # 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             # Custom icon seems to doesn't work on my Ubuntu 12.04 LTS running Unity 2D
  55             #"Chars", os.path.join(self.SCRIPT_DIR, 'light16x16.png'),
  56             # So fallback to an referenced theme's icon name
  57             "Chars", "accessories-character-map",
  58             appindicator.CATEGORY_APPLICATION_STATUS)
  59         self.ind.set_status(appindicator.STATUS_ACTIVE)
  60
  61         self.update_menu()
  62
  63     def create_menu_item(self, label):
  64         item = gtk.MenuItem()
  65         item.set_label(label)
  66         return item
  67
  68     def on_chars_changed(self, filemonitor, file, other_file, event_type):
  69         if event_type == gio.FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
  70             print 'Characters changed, updating menu...'
  71             self.update_menu()
  72
  73     def update_menu(self, widget = None, data = None):
  74         try:
  75             charDef = open(self.CHARS_PATH).readlines()
  76         except IOError:
  77             charDef = []
  78
  79         # Create menu
  80         menu = gtk.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         self.ind.set_menu(menu)
 118         menu.show_all()
 119
 120     def on_char_click(self, widget, char):
 121         cb = gtk.Clipboard(selection="PRIMARY")
 122         cb.set_text(char)
 123         cb = gtk.Clipboard(selection="CLIPBOARD")
 124         cb.set_text(char)
 125
 126     def on_quit(self, widget):
 127         gtk.main_quit()
 128
 129
 130 if __name__ == "__main__":
 131     # Catch CTRL-C
 132     signal.signal(signal.SIGINT, lambda signal, frame: gtk.main_quit())
 133
 134     # Run the indicator
 135     i = IndicatorChars()
 136
 137     # Monitor bookmarks changes
 138     file = gio.File(i.CHARS_PATH)
 139     monitor = file.monitor_file()
 140     monitor.connect("changed", i.on_chars_changed)
 141
 142     # Main gtk loop
 143     gtk.main()