vcs.maemo.org Git - ussd-widget/blob - ussd-widget/src/usr/lib/hildon-desktop/ussd-widget.py

   1 #!/usr/bin/python
   2 # -*- coding: utf-8 -*-
   3 import gobject
   4 import gtk
   5 import hildon
   6 import hildondesktop
   7 import os
   8 import cairo
   9 import pango
  10 import time
  11 import re
  12 import gettext
  13 import fcntl
  14 from subprocess import *
  15
  16 try :
  17         t = gettext.translation('ussd-widget', '/usr/share/locale')
  18         _ = t.ugettext
  19 except IOError:
  20         print "Translation file for your language not found"
  21         def retme(arg):
  22                 return arg
  23         _ = retme
  24
  25 ussd_languages = ["German", "English", "Italian", "French", "Spanish", "Dutch", "Swedish", "Danish", "Portuguese", "Finnish", "Norwegian", "Greek", "Turkish", "Reserved1", "Reserved2", "Unspecified"]
  26
  27 # TODO Cutt off too long messages and show them in separate dialog
  28 # how TODO widget vertical minimum size policy
  29 # TODO interface for queryng from scripts. For example query from one widget can change color of another widget
  30
  31 class USSD_Controller:
  32         def __init__( self, widget ) :
  33                 self.widget = widget
  34                 # number, parser, chain, interval, regexp, width, execute_at_start, retry pattern, font, [name, always show], language
  35                 self.default_config = ["", "", "", 0, "", 0, True, [], pango.FontDescription("Nokia Sans 18"), [_("Click to update"), False], 15]
  36                 self.config = self.default_config
  37                 self.timeout_version = 0
  38                 self.retry_version = 0
  39                 self.retry_state = 0
  40
  41         def save_config( self ) :
  42                 configname = os.getenv("HOME")+"/.ussdWidget.conf"
  43                 # Aquire lock
  44                 lockf = open(configname+".lock", 'a')
  45                 fcntl.flock(lockf,fcntl.LOCK_EX)
  46
  47                 oldconfig=""
  48                 try:
  49                         fconfig = open(configname,"r")
  50                         #Read configuration of other instances
  51                         my_section = False
  52                         for line in fconfig :
  53                                 if line[0] == '%':
  54                                         my_section = line[1:].strip() == self.id
  55                                 if not my_section:
  56                                         oldconfig += line
  57                         fconfig.close()
  58                 except:
  59                         print _("Couldn't read previous config")
  60
  61                 fconfig = open(configname,"w")
  62                 fconfig.seek(0)
  63                 fconfig.write(oldconfig)
  64                 fconfig.write("%"+self.id+"\n");
  65                 fconfig.writelines(["# USSD query to be run by widget\n", "number="+self.config[0], "\n"])
  66                 fconfig.writelines(["#Parser command\n", "parser="+self.config[1], "\n"])
  67                 fconfig.writelines(["#Chain command\n", "chain="+self.config[2], "\n"])
  68                 fconfig.writelines(["#Update interval in minutes\n", "interval="+str(self.config[3]), "\n"])
  69                 fconfig.writelines(["#RegExp pattern\n", "regexp="+self.config[4], "\n"])
  70                 fconfig.writelines(["#Widget width\n", "width="+str(self.config[5]), "\n"])
  71                 fconfig.writelines(["#Execute query at start\n", "query_at_start="+str(self.config[6]), "\n"])
  72                 fconfig.writelines(["#Retry pattern\n"])
  73                 fconfig.write("retry=")
  74                 first = True
  75                 for i in self.config[7]:
  76                         if not first:
  77                                 fconfig.write ("-")
  78                         fconfig.write(str(i))
  79                         first = False
  80                 fconfig.write("\n")
  81                 fconfig.writelines(["#Font description\n", "font="+self.config[8].to_string(), "\n"])
  82                 fconfig.writelines(["#Font color\n", "text_color="+self.widget.get_text_color().to_string(), "\n"])
  83                 fconfig.writelines(["#Background color\n", "bg_color="+self.widget.get_bg_color().to_string(), "\n"])
  84                 fconfig.writelines(["#Widget name\n", "name="+self.config[9][0], "\n"])
  85                 fconfig.writelines(["#Always show widget name\n", "show_name="+str(self.config[9][1]), "\n"])
  86                 fconfig.writelines(["#USSD reply language\n", "language="+str(self.config[10]), "\n"])
  87                 fconfig.close()
  88
  89                 fcntl.flock(lockf,fcntl.LOCK_UN)
  90                 lockf.close()
  91
  92         def get_config(self):
  93                 return self.config
  94
  95         def read_config( self, id ):
  96                 try :
  97                         self.id = id
  98                         config = open(os.getenv("HOME")+"/.ussdWidget.conf","r")
  99
 100                         error = False
 101                         i = 0
 102                         my_section = False
 103                         for line in config :
 104                                 i += 1
 105                                 if line[0] == '#':
 106                                         continue
 107                                 if line[0] == '%':
 108                                         my_section = line[1:].strip() == id
 109                                         continue
 110
 111                                 if not my_section:
 112                                         # This is config for another instace
 113                                         continue
 114
 115                                 line=line.split('=', 1)
 116
 117                                 if len(line) != 2 :
 118                                         error = True
 119                                         print _("Error reading config on line %(line)d. = or # expected.")%{"line":i}
 120                                         continue
 121                                 if line[0] == "number" :
 122                                         self.config[0] = line[1].strip()
 123                                 elif line[0] == "parser" :
 124                                         self.config[1] = line[1].strip()
 125                                 elif line[0] == "chain" :
 126                                         self.config[2] = line[1].strip()
 127                                 elif line[0] == "interval" :
 128                                         try:
 129                                                 self.config[3] = int(line[1].strip())
 130                                         except:
 131                                                 error = True
 132                                                 print _("Error reading config on line %(line)d. Integer expected.")%{"line":i}
 133                                                 continue
 134                                 elif line[0] == "regexp" :
 135                                         self.config[4] = line[1].strip()
 136                                 elif line[0] == "width" :
 137                                         try:
 138                                                 self.config[5] = int(line[1].strip())
 139                                         except:
 140                                                 error = True
 141                                                 print _("Error reading config on line %(line)d. Integer expected.")%{"line":i}
 142                                                 continue
 143                                 elif line[0] == "query_at_start" :
 144                                         if line[1].strip() == "True" :
 145                                                 self.config[6] = True
 146                                         else :
 147                                                 self.config[6] = False
 148                                 elif line[0] == "retry" :
 149                                         line[1] = line[1].strip()
 150                                         if line[1] != "":
 151                                                 line[1] = line[1].split("-")
 152                                                 i = 0
 153                                                 while i < len(line[1]) :
 154                                                         try:
 155                                                                 line[1][i] = int(line[1][i])
 156                                                         except:
 157                                                                 error = True
 158                                                                 print _("Error reading config on line %(line)d. Integer expected.")%{"line":i}
 159                                                         i += 1
 160                                                 self.config[7] = line[1]
 161                                         else:
 162                                                 self.config[7] = []
 163                                                 continue
 164                                 elif line[0] == "font" :
 165                                         try:
 166                                                 self.config[8] = pango.FontDescription(line[1].strip())
 167                                         except:
 168                                                 error = True
 169                                                 print _("Error reading config on line %(line)d. Pango font description expected.")%{"line":i}
 170                                                 continue
 171                                 elif line[0] == "bg_color" :
 172                                         try:
 173                                                 self.widget.set_bg_color(gtk.gdk.color_parse(line[1].strip()))
 174                                         except:
 175                                                 error = True
 176                                                 print _("Error reading config on line %(line)d. Expected color definition.")%{"line":i}
 177                                 elif line[0] == "text_color" :
 178                                         try:
 179                                                 self.widget.set_text_color(gtk.gdk.color_parse(line[1].strip()))
 180                                         except:
 181                                                 error = True
 182                                                 print _("Error reading config on line %(line)d. Expected color definition.")%{"line":i}
 183                                 elif line[0] == "name" :
 184                                         self.config[9][0] = line[1].strip()
 185                                 elif line[0] == "show_name" :
 186                                         if line[1].strip() == "True" :
 187                                                 self.config[9][1] = True
 188                                         else :
 189                                                 self.config[9][1] = False
 190                                 elif line[0] == "language" :
 191                                         try:
 192                                                 if int(line[1].strip()) >=0 and int(line[1].strip()) < len(ussd_languages):
 193                                                         self.config[10] = int(line[1].strip())
 194                                                 else:
 195                                                         error = True
 196                                                         print _("Error reading config on line %(line)d. Unknown language code.")%{"line":i}
 197                                         except:
 198                                                 error = True
 199                                                 print _("Error reading config on line %(line)d. Integer expected.")%{"line":i}
 200                                 else :
 201                                         error = True
 202                                         print _("Error reading config on line %(line)d. Unexpected variable: ")%{"line":i}+line[0]
 203                                         continue
 204
 205                         config.close()
 206
 207                         if error :
 208                                 self.widget.error = 1
 209                                 self.widget.set_text (_("Config error"), 5000)
 210
 211                         return self.config
 212                 except  IOError:
 213                         self.widget.error = 1
 214                         self.widget.set_text (_("Config error"), 0)
 215                         print _("IO error while reading config")
 216
 217                         return self.default_config
 218
 219         def on_show_settings( self, widget ) :
 220                 dialog = UssdConfigDialog(self.config, self.widget.get_bg_color(), self.widget.get_text_color())
 221
 222                 while True:
 223                         if dialog.run() != gtk.RESPONSE_OK :
 224                                 dialog.destroy()
 225                                 return
 226
 227                         test = check_regexp(dialog.regexp.get_text())
 228                         if test :
 229                                 dialog.on_error_regexp(test)
 230                                 continue
 231
 232                         # Check, that we have ussd number
 233                         if not check_number(dialog.ussdNumber.get_text()):
 234                                 dialog.on_error_ussd_number()
 235                                 continue
 236
 237                         # Parse retry pattern
 238                         retry = dialog.retryEdit.get_text().strip()
 239                         if retry != "" :
 240                                 retry = retry.split("-")
 241                                 i = 0
 242                                 while i < len(retry) :
 243                                         try:
 244                                                 retry[i] = int(retry[i])
 245                                         except:
 246                                                 dialog.on_error_retry_pattern()
 247                                                 break
 248                                         i += 1
 249
 250                                 if i < len(retry):
 251                                         continue
 252                         else :
 253                                 retry = []
 254
 255                         break
 256
 257                 self.config = [
 258                         dialog.ussdNumber.get_text(),
 259                         dialog.parser.get_text(),
 260                         dialog.chain.get_text(),
 261                         dialog.update_interval.get_value(),
 262                         dialog.regexp.get_text(),
 263                         dialog.widthEdit.get_value(),
 264                         dialog.query_at_start.get_active(),
 265                         retry,
 266                         dialog.font,
 267                         [dialog.wname.get_text(), dialog.show_name.get_active()],
 268                         dialog.language.get_active()
 269                 ]
 270
 271                 widget.set_bg_color(dialog.bg_color)
 272                 widget.set_text_color(dialog.text_color)
 273
 274                 self.save_config()
 275
 276                 widget.set_width(self.config[5])
 277                 self.reset_timed_renew()
 278                 self.widget.label.modify_font(self.config[8])
 279
 280                 dialog.destroy()
 281
 282                 # Before running this function widget wasn't configured
 283                 if self.config == self.default_config:
 284                         self.widget.set_text(_("Click to update"))
 285                 return
 286
 287         def callback_ussd_data( self, source, condition ):
 288                 if condition == gobject.IO_IN or condition == gobject.IO_PRI :
 289                         data = source.read( )
 290                         if len( data ) > 0 :
 291                                 self.cb_reply += data
 292                                 return True
 293                         else :
 294                                 self.cb_ready = 1
 295                                 return False
 296
 297                 elif condition == gobject.IO_HUP or condition == gobject.IO_ERR :
 298                         self.cb_ready = 1
 299                         self.process_reply()
 300                         return False
 301
 302                 print (_("serious problems in program logic"))
 303                 # This will force widget to show error message
 304                 self.cb_reply = ""
 305                 self.cb_ready = 1
 306                 self.process_reply()
 307                 return False
 308
 309
 310         def call_external_script( self, ussd_code, language ):
 311                 self.cb_ready = 0
 312                 self.cb_reply = "";
 313                 p = Popen(['/usr/bin/ussdquery.py', ussd_code, ussd_languages[language]], stdout=PIPE)
 314                 gobject.io_add_watch( p.stdout, gobject.IO_IN | gobject.IO_PRI | gobject.IO_HUP | gobject.IO_ERR , self.callback_ussd_data )
 315
 316         def ussd_renew(self, widget, event):
 317                 if self.widget.processing == 0:
 318                         if self.config :
 319                                 widget.processing = 1
 320                                 widget.set_text(_("Processing"), 0)
 321                                 self.call_external_script( self.config[0], self.config[10] )
 322                         else :
 323                                 widget.processing = 0
 324                                 widget.error = 1
 325                                 widget.set_text(_("No config"), 0)
 326
 327         def process_reply( self ):
 328                 reply = self.cb_reply.strip()
 329
 330                 if reply == "" :
 331                         self.widget.error = 1
 332                         self.widget.set_text (_("Error"), 5000)
 333                         if self.retry_state == len(self.config[7]):
 334                                 self.retry_version += 1
 335                                 self.retry_state = 0
 336                         else :
 337                                 self.retry_timer = gobject.timeout_add (1000*self.config[7][self.retry_state], self.retry_renew, self.retry_version)
 338                                 self.retry_state += 1
 339                 else :
 340                         self.widget.error = 0
 341                         # Pass to parser
 342                         if self.config[1] != "":
 343                                 p = Popen(smart_split_string(self.config[1], reply), stdout=PIPE)
 344                                 reply = p.communicate(reply+"\n")[0].strip()
 345                         # Pass to chain
 346                         if self.config[2] != "":
 347                                 p = Popen(smart_split_string(self.config[2], reply))
 348                         # Apply regexp
 349                         if self.config[4] != "":
 350                                 try :
 351                                         r = re.match( self.config[4], reply ).group( 1 )
 352                                 except Exception, e:
 353                                         r = _("Regexp Error: ") + str( e ) + "\n" + reply
 354
 355                                 if r :
 356                                         reply = r
 357                         self.widget.set_text(reply)
 358                 self.widget.processing = 0
 359
 360         def timed_renew(self, version):
 361                 if version < self.timeout_version :
 362                         return False
 363                 self.ussd_renew(self.widget, None)
 364                 return True
 365
 366         def retry_renew(self,version):
 367                 if self.widget.error == 0 or self.widget.processing == 1 or version < self.retry_version :
 368                         return False
 369                 self.ussd_renew(self.widget, None)
 370                 return False
 371
 372         def reset_timed_renew (self) :
 373                 self.timeout_version += 1
 374                 if self.config[3] != 0 :
 375                         self.timer = gobject.timeout_add (60000*self.config[3], self.timed_renew, self.timeout_version)
 376
 377 class pHelpDialog(gtk.Dialog):
 378         def __init__(self, heading, text):
 379                 gtk.Dialog.__init__(self, heading, None,
 380                         gtk.DIALOG_DESTROY_WITH_PARENT | gtk.DIALOG_NO_SEPARATOR,
 381                         (_("OK").encode("utf-8"), gtk.RESPONSE_OK))
 382                 label = gtk.Label(text)
 383                 label.set_line_wrap (True)
 384                 self.vbox.add(label)
 385                 self.show_all()
 386                 self.parent
 387
 388 class UssdConfigDialog(gtk.Dialog):
 389         def __init__(self, config, bg_color, text_color):
 390                 gtk.Dialog.__init__(self, _("USSD widget"), None,
 391                         gtk.DIALOG_DESTROY_WITH_PARENT | gtk.DIALOG_NO_SEPARATOR,
 392                         (_("Save").encode("utf-8"), gtk.RESPONSE_OK))
 393
 394                 self.font = config[8]
 395                 self.bg_color = bg_color
 396                 self.text_color = text_color
 397
 398                 self.set_size_request(-1, 400)
 399                 self.ussdNumber = hildon.Entry(gtk.HILDON_SIZE_AUTO)
 400                 self.ussdNumber.set_text(config[0])
 401                 self.parser = hildon.Entry(gtk.HILDON_SIZE_AUTO)
 402                 self.parser.set_text(config[1])
 403                 self.chain = hildon.Entry(gtk.HILDON_SIZE_AUTO)
 404                 self.chain.set_text(config[2])
 405                 self.update_interval = hildon.NumberEditor(0, 9999)
 406                 self.update_interval.set_value(config[3])
 407                 self.regexp = hildon.Entry(gtk.HILDON_SIZE_AUTO)
 408                 self.regexp.set_text(config[4])
 409                 self.widthEdit = hildon.NumberEditor(0, 1000)
 410                 self.widthEdit.set_value(config[5])
 411                 self.retryEdit = hildon.Entry(gtk.HILDON_SIZE_AUTO)
 412
 413
 414                 #selector = hildon.hildon_touch_selector_new_text()
 415                 selector = hildon.TouchSelector(text=True)
 416                 for i in ussd_languages:
 417                         selector.append_text(i)
 418                 self.language = hildon.PickerButton(gtk.HILDON_SIZE_AUTO, hildon.BUTTON_ARRANGEMENT_HORIZONTAL)
 419                 self.language.set_selector(selector)
 420                 self.language.set_active(config[10])
 421                 self.language.set_title(_("USSD reply language"))
 422                 self.language.set_size_request(-1, -1)
 423
 424                 self.wname = hildon.Entry(gtk.HILDON_SIZE_AUTO)
 425                 self.wname.set_text(config[9][0])
 426                 self.show_name = gtk.CheckButton(_("Always show name"))
 427                 self.show_name.set_active(config[9][1])
 428
 429                 text = ""
 430                 for i in config[7]:
 431                         if text != "":
 432                                 text += "-"
 433                         text += str(i)
 434                 self.retryEdit.set_text(text)
 435
 436                 self.query_at_start = gtk.CheckButton(_("Execute query on start"))
 437                 self.query_at_start.set_active(config[6])
 438
 439                 self.fontButton = gtk.Button(_("Font"))
 440                 self.fontButton.connect("clicked", self.on_show_font_selection)
 441
 442                 self.colorButton = gtk.Button(_("Background color"))
 443                 self.colorButton.connect("clicked", self.on_show_color_selection)
 444                 self.textColorButton = gtk.Button(_("Text color"))
 445                 self.textColorButton.connect("clicked", self.on_show_text_color_selection)
 446
 447                 phelp = gtk.Button("?")
 448                 phelp.connect("clicked", self.on_show_phelp)
 449
 450                 chelp = gtk.Button("?")
 451                 chelp.connect("clicked", self.on_show_chelp)
 452
 453                 reghelp = gtk.Button("?")
 454                 reghelp.connect("clicked", self.on_show_reghelp)
 455
 456                 retryhelp = gtk.Button("?")
 457                 retryhelp.connect("clicked", self.on_show_retryhelp)
 458
 459                 area = hildon.PannableArea()
 460                 self.vbox.add(area)
 461                 vbox = gtk.VBox()
 462                 area.add_with_viewport(vbox)
 463
 464                 numberBox = gtk.HBox()
 465                 numberLabel = gtk.Label(_("USSD number"))
 466                 numberLabel.set_alignment(0,0)
 467                 numberLabel.set_size_request(100, -1)
 468                 self.ussdNumber.set_size_request(200, -1)
 469                 numberBox.add(numberLabel)
 470                 numberBox.add(self.ussdNumber)
 471                 vbox.add(numberBox)
 472
 473                 vbox.add(self.language)
 474
 475                 vbox.add(self.query_at_start)
 476
 477                 nameBox = gtk.HBox()
 478                 self.show_name.set_size_request(100, -1)
 479                 self.wname.set_size_request(100, -1)
 480                 nameBox.add(self.show_name)
 481                 nameBox.add(self.wname)
 482                 vbox.add(nameBox)
 483
 484                 parserBox = gtk.HBox()
 485                 parserLabel = gtk.Label(_("Parser"))
 486                 parserLabel.set_alignment(0,0)
 487                 parserLabel.set_size_request(200, -1)
 488                 phelp.set_size_request(10, -1)
 489                 parserBox.add(parserLabel)
 490                 parserBox.add(phelp)
 491                 vbox.add(parserBox)
 492                 vbox.add(self.parser)
 493
 494                 chainBox = gtk.HBox()
 495                 chainLabel = gtk.Label(_("Chain"))
 496                 chainLabel.set_alignment(0,0)
 497                 chainLabel.set_size_request(200, -1)
 498                 chelp.set_size_request(10, -1)
 499                 chainBox.add(chainLabel)
 500                 chainBox.add(chelp)
 501                 vbox.add(chainBox)
 502                 vbox.add(self.chain)
 503
 504                 regexpBox = gtk.HBox()
 505                 regexpLabel = gtk.Label(_("RegExp"))
 506                 regexpLabel.set_alignment(0,0)
 507                 regexpLabel.set_size_request(200, -1)
 508                 reghelp.set_size_request(10, -1)
 509                 regexpBox.add(regexpLabel)
 510                 regexpBox.add(reghelp)
 511                 vbox.add(regexpBox)
 512                 vbox.add(self.regexp)
 513
 514                 widthBox = gtk.HBox()
 515                 widthLabel = gtk.Label(_("Max. width"))
 516                 widthLabel.set_alignment(0,0)
 517                 symbolsLabel = gtk.Label(_("symbols"))
 518                 widthLabel.set_size_request(140, -1)
 519                 self.widthEdit.set_size_request(50, -1)
 520                 symbolsLabel.set_size_request(40,-1)
 521                 widthBox.add(widthLabel)
 522                 widthBox.add(self.widthEdit)
 523                 widthBox.add(symbolsLabel)
 524                 vbox.add(widthBox)
 525
 526                 updateBox = gtk.HBox()
 527                 updateLabel = gtk.Label(_("Update every"))
 528                 updateLabel.set_alignment(0,0)
 529                 minutesLabel = gtk.Label(_("minutes"))
 530                 updateLabel.set_size_request(140, -1)
 531                 self.update_interval.set_size_request(50, -1)
 532                 minutesLabel.set_size_request(40, -1)
 533                 updateBox.add(updateLabel)
 534                 updateBox.add(self.update_interval)
 535                 updateBox.add(minutesLabel)
 536                 vbox.add(updateBox)
 537
 538                 retryBox = gtk.HBox()
 539                 retryLabel = gtk.Label(_("Retry pattern"))
 540                 retryLabel.set_alignment(0,0)
 541                 retryLabel.set_size_request(200, -1)
 542                 retryhelp.set_size_request(10, -1)
 543                 retryBox.add(retryLabel)
 544                 retryBox.add(retryhelp)
 545                 vbox.add(retryBox)
 546                 vbox.add(self.retryEdit)
 547
 548                 viewBox = gtk.HBox()
 549                 viewBox.add(self.fontButton)
 550                 viewBox.add(self.textColorButton)
 551                 viewBox.add(self.colorButton)
 552                 vbox.add(viewBox)
 553
 554                 self.show_all()
 555                 self.parent
 556
 557         #============ Dialog helper functions =============
 558         def on_show_phelp(self, widget):
 559                 dialog = pHelpDialog(_("Format help"), _("Reply would be passed to specified utility, output of utility would be shown to you.\n       Format:\n% would be replaced by reply\n\\ invalidates special meaming of following symbol\n\" and ' work as usual\nspace delimits command line parameters of utility"))
 560                 dialog.run()
 561                 dialog.destroy()
 562
 563         def on_show_chelp(self, widget):
 564                 dialog = pHelpDialog(_("Format help"), _("Reply would be passed to specified utility after parser utility. May be used for logging, statistics etc.\n       Format:\n% would be replaced by reply\n\\ invalidates special meaning of following symbol\n\" and ' work as usual\nspace delimits command line parameters of utility"))
 565                 dialog.run()
 566                 dialog.destroy()
 567
 568         def on_show_reghelp(self, widget):
 569                 dialog = pHelpDialog(_("Format help"), _("Standard python regexps. Use\n (.+?[\d\,\.]+)\n to delete everything after first number."))
 570                 dialog.run()
 571                 dialog.destroy()
 572
 573         def on_show_retryhelp(self, widget):
 574                 dialog = pHelpDialog(_("Format help"), _("Pauses between attemps (in seconds), delimited by -. For example 15-15-300 means \"In case of failure wait 15 seconds, try again, on failure wait 15 more secodns and try again, on failure make last attempt after 5 minutes\""))
 575                 dialog.run()
 576                 dialog.destroy()
 577
 578         def on_error_regexp(self, error):
 579                 dialog = pHelpDialog(_("Regexp syntax error"), error )
 580                 dialog.run()
 581                 dialog.destroy()
 582
 583         def on_error_ussd_number(self):
 584                 dialog = pHelpDialog(_("Incorrect USSD number"), _("USSD number should contain only digits, +, * or #") )
 585                 dialog.run()
 586                 dialog.destroy()
 587
 588         def on_error_retry_pattern(self):
 589                 dialog = pHelpDialog(_("Incorrect retry pattern"), _("Retry pattern should contain only numbers, delimited by -") )
 590                 dialog.run()
 591                 dialog.destroy()
 592
 593         def on_show_color_selection (self, event):
 594                 colorDialog = gtk.ColorSelectionDialog(_("Choose background color"))
 595                 colorDialog.colorsel.set_current_color(self.bg_color)
 596                 if colorDialog.run() == gtk.RESPONSE_OK :
 597                         self.bg_color = colorDialog.colorsel.get_current_color()
 598                 colorDialog.destroy()
 599
 600         def on_show_text_color_selection (self, event):
 601                 colorDialog = gtk.ColorSelectionDialog(_("Choose text color"))
 602                 colorDialog.colorsel.set_current_color(self.text_color)
 603                 if colorDialog.run() == gtk.RESPONSE_OK :
 604                         self.text_color = colorDialog.colorsel.get_current_color()
 605                 colorDialog.destroy()
 606
 607         def on_show_font_selection (self, event):
 608                 fontDialog = gtk.FontSelectionDialog(_("Choose a font"))
 609                 fontDialog.set_font_name(self.font.to_string())
 610
 611                 if fontDialog.run() != gtk.RESPONSE_OK :
 612                         fontDialog.destroy()
 613                         return
 614
 615                 self.font = pango.FontDescription (fontDialog.get_font_name())
 616                 fontDialog.destroy()
 617
 618 def smart_split_string (str, query) :
 619         word = ""
 620         result = []
 621         # Is simbol backslashed?
 622         bs = 0
 623         # Quotes: 1 - ", 2 - ', 0 - no quotes
 624         qs = 0
 625         for i in range(len(str)) :
 626           if bs == 0 and (str[i] == '"' and qs == 1 or str[i] == "'" and qs == 2) :
 627                   qs = 0
 628           elif bs == 0 and qs == 0 and (str[i] == '"' or str[i] == "'") :
 629                   if str[i] == '"':
 630                           qs = 1
 631                   else :
 632                           qs = 2
 633           elif bs == 0 and str[i] == '\\' :
 634                   bs = 1
 635           elif bs == 0 and str[i] == '%' :
 636                   word += query
 637                   ws = 0
 638           else :
 639                   if bs == 1 and str[i] != '\\' and str[i] != '"' and str[i] != "'" :
 640                           word += "\\"
 641                   if qs == 0 and (str[i] == " " or str[i] == "\t") :
 642                           if word != "" :
 643                                   result.append(word)
 644                                   word = ""
 645                   else :
 646                           word += str[i]
 647                   bs = 0
 648         if word != "" :
 649                 result.append(word)
 650         return result
 651
 652 def check_regexp(regexp):
 653         try :
 654                 re.compile( regexp )
 655         except Exception, e:
 656                         return str(e)
 657         return False
 658
 659 def check_number(number):
 660         for s in number :
 661                 if not (s in ["1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "+", "*", "#"]) :
 662                         return False
 663         return True
 664
 665 #=============== The widget itself ================
 666
 667 def get_color(logicalcolorname):
 668         settings = gtk.settings_get_default()
 669         color_style = gtk.rc_get_style_by_paths(settings, 'GtkButton', 'osso-logical-colors', gtk.Button)
 670         return color_style.lookup_color(logicalcolorname)
 671
 672 class UssdWidgetPlugin(hildondesktop.HomePluginItem):
 673         def __init__(self):
 674                 hildondesktop.HomePluginItem.__init__(self)
 675
 676                 self.processing = 0
 677                 self.bg_color=gtk.gdk.color_parse('#000000')
 678                 self.text_color=gtk.gdk.color_parse('#ffffff')
 679                 self.error = 0
 680                 self.timeout_version = 0
 681
 682                 colormap = self.get_screen().get_rgba_colormap()
 683                 self.set_colormap (colormap)
 684
 685                 self.controller = USSD_Controller(self)
 686
 687 # TODO Click event would be better
 688                 self.connect("button-press-event", self.controller.ussd_renew)
 689
 690                 self.vbox = gtk.HBox()
 691                 self.add(self.vbox)
 692
 693                 self.set_settings(True)
 694                 self.connect("show-settings", self.controller.on_show_settings)
 695                 self.label = gtk.Label("")
 696
 697                 self.vbox.add(self.label)
 698                 self.vbox.set_child_packing(self.label, False, False, 0, gtk.PACK_START)
 699                 self.label.set_padding(15, 10)
 700                 self.label.set_size_request(-1,-1)
 701                 self.set_size_request(-1,-1)
 702                 self.label.set_line_wrap (True)
 703
 704                 self.vbox.show_all()
 705
 706         def do_show(self):
 707                 config = self.controller.read_config(self.get_applet_id())
 708                 self.set_width(config[5])
 709                 self.set_text("")
 710                 if config[6]:
 711                         self.controller.ussd_renew(self, None)
 712
 713                 self.controller.reset_timed_renew()
 714                 hildondesktop.HomePluginItem.do_show(self)
 715
 716         def error_return (self):
 717                 if self.error == 1 and self.processing == 0:
 718                         self.set_text(self.text)
 719                 return False
 720
 721         # showfor =
 722         #       -1 - This is a permanent text message
 723         #       0  - This is service message, but it shouldn't be hidden automatically
 724         #       >0 - This is service message, show permament message after showfor milliseconds
 725         def set_text(self, text, showfor=-1):
 726                 if showfor > 0 :
 727                         # Show previous text after 5 seconds
 728                         gobject.timeout_add (showfor, self.error_return)
 729                 else :
 730                         if showfor == -1 :
 731                                 self.text = text
 732
 733                 config = self.controller.get_config()
 734                 if config[9][1] or text == "":
 735                         text = config[9][0]+text
 736                 self.label.set_text(text)
 737
 738         def get_text(self):
 739                 return self.text
 740
 741         def set_width(self, width):
 742                 if width != 0:
 743                         self.label.set_width_chars (width)
 744                 else :
 745                         self.label.set_width_chars(-1)
 746
 747         def set_bg_color(self, color):
 748                 self.bg_color = color
 749
 750         def get_bg_color(self):
 751                 return self.bg_color
 752
 753         def set_text_color(self, color):
 754                 self.label.modify_fg(gtk.STATE_NORMAL, color)
 755                 self.text_color = color
 756
 757         def get_text_color(self):
 758                 return self.text_color
 759
 760         def _expose(self, event):
 761                 cr = self.window.cairo_create()
 762
 763                 # draw rounded rect
 764                 width, height = self.label.allocation[2], self.label.allocation[3]
 765
 766                 #/* a custom shape, that could be wrapped in a function */
 767                 x0 = 0   #/*< parameters like cairo_rectangle */
 768                 y0 = 0
 769
 770                 radius = min(15, width/2, height/2)  #/*< and an approximate curvature radius */
 771
 772                 x1 = x0 + width
 773                 y1 = y0 + height
 774
 775                 cr.move_to  (x0, y0 + radius)
 776                 cr.arc (x0 + radius, y0 + radius, radius, 3.14, 1.5 * 3.14)
 777                 cr.line_to (x1 - radius, y0)
 778                 cr.arc (x1 - radius, y0 + radius, radius, 1.5 * 3.14, 0.0)
 779                 cr.line_to (x1 , y1 - radius)
 780                 cr.arc (x1 - radius, y1 - radius, radius, 0.0, 0.5 * 3.14)
 781                 cr.line_to (x0 + radius, y1)
 782                 cr.arc (x0 + radius, y1 - radius, radius, 0.5 * 3.14, 3.14)
 783
 784                 cr.close_path ()
 785
 786                 fg_color = get_color("ActiveTextColor")
 787
 788                 if self.processing :
 789                         bg_color=fg_color
 790                 else :
 791                         bg_color=self.bg_color
 792
 793                 cr.set_source_rgba (bg_color.red / 65535.0, bg_color.green/65535.0, bg_color.blue/65535.0, 0.7)
 794                 cr.fill_preserve ()
 795
 796                 if self.error :
 797                         cr.set_source_rgba (1.0, 0.0, 0.0, 0.5)
 798                 else :
 799                         cr.set_source_rgba (fg_color.red / 65535.0, fg_color.green / 65535.0, fg_color.blue / 65535.0, 0.7)
 800                 cr.stroke ()
 801
 802         def do_expose_event(self, event):
 803                 self.chain(event)
 804                 self._expose (event)
 805                 self.vbox.do_expose_event (self, event)
 806
 807 hd_plugin_type = UssdWidgetPlugin
 808
 809 # The code below is just for testing purposes.
 810 # It allows to run the widget as a standalone process.
 811 if __name__ == "__main__":
 812         import gobject
 813         gobject.type_register(hd_plugin_type)
 814         obj = gobject.new(hd_plugin_type, plugin_id="plugin_id")
 815         obj.show_all()
 816         gtk.main()