gui/android.py

   1 #!/usr/bin/env python
   2 #
   3 # Electrum - lightweight Bitcoin client
   4 # Copyright (C) 2011 thomasv@gitorious
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
  18
  19
  20
  21
  22 import android
  23
  24 from electrum import SimpleConfig, Wallet, WalletStorage, format_satoshis, mnemonic_encode, mnemonic_decode, is_valid
  25 from electrum import util
  26 from decimal import Decimal
  27 import datetime, re
  28
  29
  30
  31 def modal_dialog(title, msg = None):
  32     droid.dialogCreateAlert(title,msg)
  33     droid.dialogSetPositiveButtonText('OK')
  34     droid.dialogShow()
  35     droid.dialogGetResponse()
  36     droid.dialogDismiss()
  37
  38 def modal_input(title, msg, value = None, etype=None):
  39     droid.dialogCreateInput(title, msg, value, etype)
  40     droid.dialogSetPositiveButtonText('OK')
  41     droid.dialogSetNegativeButtonText('Cancel')
  42     droid.dialogShow()
  43     response = droid.dialogGetResponse()
  44     result = response.result
  45     if result is None:
  46         print "modal input: result is none"
  47         return False
  48     droid.dialogDismiss()
  49     if result.get('which') == 'positive':
  50         return result.get('value')
  51
  52 def modal_question(q, msg, pos_text = 'OK', neg_text = 'Cancel'):
  53     droid.dialogCreateAlert(q, msg)
  54     droid.dialogSetPositiveButtonText(pos_text)
  55     droid.dialogSetNegativeButtonText(neg_text)
  56     droid.dialogShow()
  57     response = droid.dialogGetResponse()
  58     result = response.result
  59     if result is None:
  60         print "modal question: result is none"
  61         return False
  62     droid.dialogDismiss()
  63     return result.get('which') == 'positive'
  64
  65 def edit_label(addr):
  66     v = modal_input('Edit label',None,wallet.labels.get(addr))
  67     if v is not None:
  68         if v:
  69             wallet.labels[addr] = v
  70         else:
  71             if addr in wallet.labels.keys():
  72                 wallet.labels.pop(addr)
  73         wallet.update_tx_history()
  74         wallet.save()
  75         droid.fullSetProperty("labelTextView", "text", v)
  76
  77 def select_from_contacts():
  78     title = 'Contacts:'
  79     droid.dialogCreateAlert(title)
  80     l = []
  81     for i in range(len(wallet.addressbook)):
  82         addr = wallet.addressbook[i]
  83         label = wallet.labels.get(addr,addr)
  84         l.append( label )
  85     droid.dialogSetItems(l)
  86     droid.dialogSetPositiveButtonText('New contact')
  87     droid.dialogShow()
  88     response = droid.dialogGetResponse().result
  89     droid.dialogDismiss()
  90
  91     if response.get('which') == 'positive':
  92         return 'newcontact'
  93
  94     result = response.get('item')
  95     print result
  96     if result is not None:
  97         addr = wallet.addressbook[result]
  98         return addr
  99
 100
 101 def select_from_addresses():
 102     droid.dialogCreateAlert("Addresses:")
 103     l = []
 104     addresses = wallet.addresses()
 105     for i in range(len(addresses)):
 106         addr = addresses[i]
 107         label = wallet.labels.get(addr,addr)
 108         l.append( label )
 109     droid.dialogSetItems(l)
 110     droid.dialogShow()
 111     response = droid.dialogGetResponse()
 112     result = response.result.get('item')
 113     droid.dialogDismiss()
 114     if result is not None:
 115         addr = addresses[result]
 116         return addr
 117
 118
 119 def protocol_name(p):
 120     if p == 't': return 'TCP'
 121     if p == 'h': return 'HTTP'
 122     if p == 's': return 'TCP/SSL'
 123     if p == 'g': return 'HTTPS'
 124
 125
 126 def protocol_dialog(host, protocol, z):
 127     droid.dialogCreateAlert('Protocol',host)
 128     if z:
 129         protocols = z.keys()
 130     else:
 131         protocols = 'thsg'
 132     l = []
 133     current = protocols.index(protocol)
 134     for p in protocols:
 135         l.append(protocol_name(p))
 136     droid.dialogSetSingleChoiceItems(l, current)
 137     droid.dialogSetPositiveButtonText('OK')
 138     droid.dialogSetNegativeButtonText('Cancel')
 139     droid.dialogShow()
 140     response = droid.dialogGetResponse().result
 141     selected_item = droid.dialogGetSelectedItems().result
 142     droid.dialogDismiss()
 143
 144     if not response: return
 145     if not selected_item: return
 146     if response.get('which') == 'positive':
 147         return protocols[selected_item[0]]
 148
 149
 150
 151
 152 def make_layout(s, scrollable = False):
 153     content = """
 154
 155       <LinearLayout
 156         android:id="@+id/zz"
 157         android:layout_width="match_parent"
 158         android:layout_height="wrap_content"
 159         android:background="#ff222222">
 160
 161         <TextView
 162           android:id="@+id/textElectrum"
 163           android:text="Electrum"
 164           android:textSize="7pt"
 165           android:textColor="#ff4444ff"
 166           android:gravity="left"
 167           android:layout_height="wrap_content"
 168           android:layout_width="match_parent"
 169         />
 170       </LinearLayout>
 171
 172         %s   """%s
 173
 174     if scrollable:
 175         content = """
 176       <ScrollView
 177         android:id="@+id/scrollview"
 178         android:layout_width="match_parent"
 179         android:layout_height="match_parent" >
 180
 181       <LinearLayout
 182         android:orientation="vertical"
 183         android:layout_width="match_parent"
 184         android:layout_height="wrap_content" >
 185
 186       %s
 187
 188       </LinearLayout>
 189       </ScrollView>
 190       """%content
 191
 192
 193     return """<?xml version="1.0" encoding="utf-8"?>
 194       <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 195         android:id="@+id/background"
 196         android:orientation="vertical"
 197         android:layout_width="match_parent"
 198         android:layout_height="match_parent"
 199         android:background="#ff000022">
 200
 201       %s
 202       </LinearLayout>"""%content
 203
 204
 205
 206
 207 def main_layout():
 208     return make_layout("""
 209         <TextView android:id="@+id/balanceTextView"
 210                 android:layout_width="match_parent"
 211                 android:text=""
 212                 android:textColor="#ffffffff"
 213                 android:textAppearance="?android:attr/textAppearanceLarge"
 214                 android:padding="7dip"
 215                 android:textSize="8pt"
 216                 android:gravity="center_vertical|center_horizontal|left">
 217         </TextView>
 218
 219         <TextView android:id="@+id/historyTextView"
 220                 android:layout_width="match_parent"
 221                 android:layout_height="wrap_content"
 222                 android:text="Recent transactions"
 223                 android:textAppearance="?android:attr/textAppearanceLarge"
 224                 android:gravity="center_vertical|center_horizontal|center">
 225         </TextView>
 226
 227         %s """%get_history_layout(15),True)
 228
 229
 230
 231 def qr_layout(addr):
 232     return make_layout("""
 233
 234      <TextView android:id="@+id/addrTextView"
 235                 android:layout_width="match_parent"
 236                 android:layout_height="50"
 237                 android:text="%s"
 238                 android:textAppearance="?android:attr/textAppearanceLarge"
 239                 android:gravity="center_vertical|center_horizontal|center">
 240      </TextView>
 241
 242      <ImageView
 243         android:id="@+id/qrView"
 244         android:gravity="center"
 245         android:layout_width="match_parent"
 246         android:layout_height="350"
 247         android:antialias="false"
 248         android:src="file:///sdcard/sl4a/qrcode.bmp" />
 249
 250      <TextView android:id="@+id/labelTextView"
 251                 android:layout_width="match_parent"
 252                 android:layout_height="50"
 253                 android:text="%s"
 254                 android:textAppearance="?android:attr/textAppearanceLarge"
 255                 android:gravity="center_vertical|center_horizontal|center">
 256      </TextView>
 257
 258      """%(addr,wallet.labels.get(addr,'')), True)
 259
 260 payto_layout = make_layout("""
 261
 262         <TextView android:id="@+id/recipientTextView"
 263                 android:layout_width="match_parent"
 264                 android:layout_height="wrap_content"
 265                 android:text="Pay to:"
 266                 android:textAppearance="?android:attr/textAppearanceLarge"
 267                 android:gravity="left">
 268         </TextView>
 269
 270
 271         <EditText android:id="@+id/recipient"
 272                 android:layout_width="match_parent"
 273                 android:layout_height="wrap_content"
 274                 android:tag="Tag Me" android:inputType="text">
 275         </EditText>
 276
 277         <LinearLayout android:id="@+id/linearLayout1"
 278                 android:layout_width="match_parent"
 279                 android:layout_height="wrap_content">
 280                 <Button android:id="@+id/buttonQR" android:layout_width="wrap_content"
 281                         android:layout_height="wrap_content" android:text="From QR code"></Button>
 282                 <Button android:id="@+id/buttonContacts" android:layout_width="wrap_content"
 283                         android:layout_height="wrap_content" android:text="From Contacts"></Button>
 284         </LinearLayout>
 285
 286
 287         <TextView android:id="@+id/labelTextView"
 288                 android:layout_width="match_parent"
 289                 android:layout_height="wrap_content"
 290                 android:text="Description:"
 291                 android:textAppearance="?android:attr/textAppearanceLarge"
 292                 android:gravity="left">
 293         </TextView>
 294
 295         <EditText android:id="@+id/label"
 296                 android:layout_width="match_parent"
 297                 android:layout_height="wrap_content"
 298                 android:tag="Tag Me" android:inputType="text">
 299         </EditText>
 300
 301         <TextView android:id="@+id/amountLabelTextView"
 302                 android:layout_width="match_parent"
 303                 android:layout_height="wrap_content"
 304                 android:text="Amount:"
 305                 android:textAppearance="?android:attr/textAppearanceLarge"
 306                 android:gravity="left">
 307         </TextView>
 308
 309         <EditText android:id="@+id/amount"
 310                 android:layout_width="match_parent"
 311                 android:layout_height="wrap_content"
 312                 android:tag="Tag Me" android:inputType="numberDecimal">
 313         </EditText>
 314
 315         <LinearLayout android:layout_width="match_parent"
 316                 android:layout_height="wrap_content" android:id="@+id/linearLayout1">
 317                 <Button android:id="@+id/buttonPay" android:layout_width="wrap_content"
 318                         android:layout_height="wrap_content" android:text="Send"></Button>
 319         </LinearLayout>""",False)
 320
 321
 322
 323 settings_layout = make_layout(""" <ListView
 324            android:id="@+id/myListView"
 325            android:layout_width="match_parent"
 326            android:layout_height="wrap_content" />""")
 327
 328
 329
 330 def get_history_values(n):
 331     values = []
 332     h = wallet.get_tx_history()
 333     length = min(n, len(h))
 334     for i in range(length):
 335         tx_hash, conf, is_mine, value, fee, balance, timestamp = h[-i-1]
 336         try:
 337             dt = datetime.datetime.fromtimestamp( timestamp )
 338             if dt.date() == dt.today().date():
 339                 time_str = str( dt.time() )
 340             else:
 341                 time_str = str( dt.date() )
 342         except:
 343             time_str = 'pending'
 344
 345         conf_str = 'v' if conf else 'o'
 346         label, is_default_label = wallet.get_label(tx_hash)
 347         values.append((conf_str, '  ' + time_str, '  ' + format_satoshis(value,True), '  ' + label ))
 348
 349     return values
 350
 351
 352 def get_history_layout(n):
 353     rows = ""
 354     i = 0
 355     values = get_history_values(n)
 356     for v in values:
 357         a,b,c,d = v
 358         color = "#ff00ff00" if a == 'v' else "#ffff0000"
 359         rows += """
 360         <TableRow>
 361           <TextView
 362             android:id="@+id/hl_%d_col1"
 363             android:layout_column="0"
 364             android:text="%s"
 365             android:textColor="%s"
 366             android:padding="3" />
 367           <TextView
 368             android:id="@+id/hl_%d_col2"
 369             android:layout_column="1"
 370             android:text="%s"
 371             android:padding="3" />
 372           <TextView
 373             android:id="@+id/hl_%d_col3"
 374             android:layout_column="2"
 375             android:text="%s"
 376             android:padding="3" />
 377           <TextView
 378             android:id="@+id/hl_%d_col4"
 379             android:layout_column="3"
 380             android:text="%s"
 381             android:padding="4" />
 382         </TableRow>"""%(i,a,color,i,b,i,c,i,d)
 383         i += 1
 384
 385     output = """
 386 <TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
 387     android:layout_width="fill_parent"
 388     android:layout_height="wrap_content"
 389     android:stretchColumns="0,1,2,3">
 390     %s
 391 </TableLayout>"""% rows
 392     return output
 393
 394
 395 def set_history_layout(n):
 396     values = get_history_values(n)
 397     i = 0
 398     for v in values:
 399         a,b,c,d = v
 400         droid.fullSetProperty("hl_%d_col1"%i,"text", a)
 401
 402         if a == 'v':
 403             droid.fullSetProperty("hl_%d_col1"%i, "textColor","#ff00ff00")
 404         else:
 405             droid.fullSetProperty("hl_%d_col1"%i, "textColor","#ffff0000")
 406
 407         droid.fullSetProperty("hl_%d_col2"%i,"text", b)
 408         droid.fullSetProperty("hl_%d_col3"%i,"text", c)
 409         droid.fullSetProperty("hl_%d_col4"%i,"text", d)
 410         i += 1
 411
 412
 413
 414
 415 status_text = ''
 416 def update_layout():
 417     global status_text
 418     if not network.is_connected():
 419         text = "Not connected..."
 420     elif not wallet.up_to_date:
 421         text = "Synchronizing..."
 422     else:
 423         c, u = wallet.get_balance()
 424         text = "Balance:"+format_satoshis(c)
 425         if u : text += '   [' + format_satoshis(u,True).strip() + ']'
 426
 427
 428     # vibrate if status changed
 429     if text != status_text:
 430         if status_text and network.is_connected() and wallet.up_to_date:
 431             droid.vibrate()
 432         status_text = text
 433
 434     droid.fullSetProperty("balanceTextView", "text", status_text)
 435
 436     if wallet.up_to_date:
 437         set_history_layout(15)
 438
 439
 440
 441
 442 def pay_to(recipient, amount, fee, label):
 443
 444     if wallet.use_encryption:
 445         password  = droid.dialogGetPassword('Password').result
 446         if not password: return
 447     else:
 448         password = None
 449
 450     droid.dialogCreateSpinnerProgress("Electrum", "signing transaction...")
 451     droid.dialogShow()
 452
 453     try:
 454         tx = wallet.mktx( [(recipient, amount)], password, fee)
 455     except BaseException, e:
 456         modal_dialog('error', e.message)
 457         droid.dialogDismiss()
 458         return
 459
 460     if label:
 461         wallet.labels[tx.hash()] = label
 462
 463     droid.dialogDismiss()
 464
 465     r, h = wallet.sendtx( tx )
 466     if r:
 467         modal_dialog('Payment sent', h)
 468         return True
 469     else:
 470         modal_dialog('Error', h)
 471
 472
 473
 474
 475
 476
 477
 478 def make_new_contact():
 479     code = droid.scanBarcode()
 480     r = code.result
 481     if r:
 482         data = r['extras']['SCAN_RESULT']
 483         if data:
 484             if re.match('^bitcoin:', data):
 485                 address, _, _, _, _, _, _ = util.parse_url(data)
 486             elif is_valid(data):
 487                 address = data
 488             else:
 489                 address = None
 490             if address:
 491                 if modal_question('Add to contacts?', address):
 492                     wallet.add_contact(address)
 493         else:
 494             modal_dialog('Invalid address', data)
 495
 496
 497 do_refresh = False
 498
 499 def update_callback():
 500     global do_refresh
 501     print "gui callback", network.is_connected(), wallet.up_to_date
 502     do_refresh = True
 503     droid.eventPost("refresh",'z')
 504
 505 def main_loop():
 506     global do_refresh
 507
 508     update_layout()
 509     out = None
 510     quitting = False
 511     while out is None:
 512
 513         event = droid.eventWait(1000).result
 514         if event is None:
 515             if do_refresh:
 516                 update_layout()
 517                 do_refresh = False
 518             continue
 519
 520         print "got event in main loop", repr(event)
 521         if event == 'OK': continue
 522         if event is None: continue
 523         if not event.get("name"): continue
 524
 525         # request 2 taps before we exit
 526         if event["name"]=="key":
 527             if event["data"]["key"] == '4':
 528                 if quitting:
 529                     out = 'quit'
 530                 else:
 531                     quitting = True
 532         else: quitting = False
 533
 534         if event["name"]=="click":
 535             id=event["data"]["id"]
 536
 537         elif event["name"]=="settings":
 538             out = 'settings'
 539
 540         elif event["name"] in menu_commands:
 541             out = event["name"]
 542
 543             if out == 'contacts':
 544                 global contact_addr
 545                 contact_addr = select_from_contacts()
 546                 if contact_addr == 'newcontact':
 547                     make_new_contact()
 548                     contact_addr = None
 549                 if not contact_addr:
 550                     out = None
 551
 552             elif out == "receive":
 553                 global receive_addr
 554                 receive_addr = select_from_addresses()
 555                 if receive_addr:
 556                     amount = modal_input('Amount', 'Amount you want receive. ', '', "numberDecimal")
 557                     if amount:
 558                         receive_addr = 'bitcoin:%s?amount=%s'%(receive_addr, amount)
 559
 560                 if not receive_addr:
 561                     out = None
 562
 563
 564     return out
 565
 566
 567 def payto_loop():
 568     global recipient
 569     if recipient:
 570         droid.fullSetProperty("recipient","text",recipient)
 571         recipient = None
 572
 573     out = None
 574     while out is None:
 575         event = droid.eventWait().result
 576         if not event: continue
 577         print "got event in payto loop", event
 578         if event == 'OK': continue
 579         if not event.get("name"): continue
 580
 581         if event["name"] == "click":
 582             id = event["data"]["id"]
 583
 584             if id=="buttonPay":
 585
 586                 droid.fullQuery()
 587                 recipient = droid.fullQueryDetail("recipient").result.get('text')
 588                 label  = droid.fullQueryDetail("label").result.get('text')
 589                 amount = droid.fullQueryDetail('amount').result.get('text')
 590
 591                 if not is_valid(recipient):
 592                     modal_dialog('Error','Invalid Bitcoin address')
 593                     continue
 594
 595                 try:
 596                     amount = int( 100000000 * Decimal(amount) )
 597                 except:
 598                     modal_dialog('Error','Invalid amount')
 599                     continue
 600
 601                 result = pay_to(recipient, amount, wallet.fee, label)
 602                 if result:
 603                     out = 'main'
 604
 605             elif id=="buttonContacts":
 606                 addr = select_from_contacts()
 607                 droid.fullSetProperty("recipient","text",addr)
 608
 609             elif id=="buttonQR":
 610                 code = droid.scanBarcode()
 611                 r = code.result
 612                 if r:
 613                     data = r['extras']['SCAN_RESULT']
 614                     if data:
 615                         if re.match('^bitcoin:', data):
 616                             payto, amount, label, _, _, _, _ = util.parse_url(data)
 617                             droid.fullSetProperty("recipient", "text",payto)
 618                             droid.fullSetProperty("amount", "text", amount)
 619                             droid.fullSetProperty("label", "text", label)
 620                         else:
 621                             droid.fullSetProperty("recipient", "text", data)
 622
 623
 624         elif event["name"] in menu_commands:
 625             out = event["name"]
 626
 627         elif event["name"]=="key":
 628             if event["data"]["key"] == '4':
 629                 out = 'main'
 630
 631         #elif event["name"]=="screen":
 632         #    if event["data"]=="destroy":
 633         #        out = 'main'
 634
 635     return out
 636
 637
 638 receive_addr = ''
 639 contact_addr = ''
 640 recipient = ''
 641
 642 def receive_loop():
 643     out = None
 644     while out is None:
 645         event = droid.eventWait().result
 646         print "got event", event
 647         if event["name"]=="key":
 648             if event["data"]["key"] == '4':
 649                 out = 'main'
 650
 651         elif event["name"]=="clipboard":
 652             droid.setClipboard(receive_addr)
 653             modal_dialog('Address copied to clipboard',receive_addr)
 654
 655         elif event["name"]=="edit":
 656             edit_label(receive_addr)
 657
 658     return out
 659
 660 def contacts_loop():
 661     global recipient
 662     out = None
 663     while out is None:
 664         event = droid.eventWait().result
 665         print "got event", event
 666         if event["name"]=="key":
 667             if event["data"]["key"] == '4':
 668                 out = 'main'
 669
 670         elif event["name"]=="clipboard":
 671             droid.setClipboard(contact_addr)
 672             modal_dialog('Address copied to clipboard',contact_addr)
 673
 674         elif event["name"]=="edit":
 675             edit_label(contact_addr)
 676
 677         elif event["name"]=="paytocontact":
 678             recipient = contact_addr
 679             out = 'send'
 680
 681         elif event["name"]=="deletecontact":
 682             if modal_question('delete contact', contact_addr):
 683                 out = 'main'
 684
 685     return out
 686
 687
 688 def server_dialog(servers):
 689     droid.dialogCreateAlert("Public servers")
 690     droid.dialogSetItems( servers.keys() )
 691     droid.dialogSetPositiveButtonText('Private server')
 692     droid.dialogShow()
 693     response = droid.dialogGetResponse().result
 694     droid.dialogDismiss()
 695     if not response: return
 696
 697     if response.get('which') == 'positive':
 698         return modal_input('Private server', None)
 699
 700     i = response.get('item')
 701     if i is not None:
 702         response = servers.keys()[i]
 703         return response
 704
 705
 706 def seed_dialog():
 707     if wallet.use_encryption:
 708         password  = droid.dialogGetPassword('Seed').result
 709         if not password: return
 710     else:
 711         password = None
 712
 713     try:
 714         seed = wallet.decode_seed(password)
 715     except:
 716         modal_dialog('error','incorrect password')
 717         return
 718
 719     modal_dialog('Your seed is',seed)
 720     modal_dialog('Mnemonic code:', ' '.join(mnemonic_encode(seed)) )
 721
 722 def change_password_dialog():
 723     if wallet.use_encryption:
 724         password  = droid.dialogGetPassword('Your wallet is encrypted').result
 725         if password is None: return
 726     else:
 727         password = None
 728
 729     try:
 730         seed = wallet.decode_seed(password)
 731     except:
 732         modal_dialog('error','incorrect password')
 733         return
 734
 735     new_password  = droid.dialogGetPassword('Choose a password').result
 736     if new_password == None:
 737         return
 738
 739     if new_password != '':
 740         password2  = droid.dialogGetPassword('Confirm new password').result
 741         if new_password != password2:
 742             modal_dialog('error','passwords do not match')
 743             return
 744
 745     wallet.update_password(seed, password, new_password)
 746     if new_password:
 747         modal_dialog('Password updated','your wallet is encrypted')
 748     else:
 749         modal_dialog('No password','your wallet is not encrypted')
 750     return True
 751
 752
 753 def settings_loop():
 754
 755
 756     def set_listview():
 757         server, port, p = network.default_server.split(':')
 758         fee = str( Decimal( wallet.fee)/100000000 )
 759         is_encrypted = 'yes' if wallet.use_encryption else 'no'
 760         protocol = protocol_name(p)
 761         droid.fullShow(settings_layout)
 762         droid.fullSetList("myListView",['Server: ' + server, 'Protocol: '+ protocol, 'Port: '+port, 'Transaction fee: '+fee, 'Password: '+is_encrypted, 'Seed'])
 763
 764     set_listview()
 765
 766     out = None
 767     while out is None:
 768         event = droid.eventWait()
 769         event = event.result
 770         print "got event", event
 771         if event == 'OK': continue
 772         if not event: continue
 773
 774         servers = network.get_servers()
 775         name = event.get("name")
 776         if not name: continue
 777
 778         if name == "itemclick":
 779             pos = event["data"]["position"]
 780             host, port, protocol = network.default_server.split(':')
 781             network_changed = False
 782
 783             if pos == "0": #server
 784                 host = server_dialog(servers)
 785                 if host:
 786                     p = servers[host]
 787                     port = p[protocol]
 788                     network_changed = True
 789
 790             elif pos == "1": #protocol
 791                 if host in servers:
 792                     protocol = protocol_dialog(host, protocol, servers[host])
 793                     z = servers[host]
 794                     port = z[p]
 795                     network_changed = True
 796
 797             elif pos == "2": #port
 798                 a_port = modal_input('Port number', 'If you use a public server, this field is set automatically when you set the protocol', port, "number")
 799                 if a_port != port:
 800                     port = a_port
 801                     network_changed = True
 802
 803             elif pos == "3": #fee
 804                 fee = modal_input('Transaction fee', 'The fee will be this amount multiplied by the number of inputs in your transaction. ', str( Decimal( wallet.fee)/100000000 ), "numberDecimal")
 805                 if fee:
 806                     try:
 807                         fee = int( 100000000 * Decimal(fee) )
 808                     except:
 809                         modal_dialog('error','invalid fee value')
 810                     wallet.set_fee(fee)
 811                     set_listview()
 812
 813             elif pos == "4":
 814                 if change_password_dialog():
 815                     set_listview()
 816
 817             elif pos == "5":
 818                 seed_dialog()
 819
 820             if network_changed:
 821                 proxy = None
 822                 auto_connect = False
 823                 try:
 824                     network.set_parameters(host, port, protocol, proxy, auto_connect)
 825                 except:
 826                     modal_dialog('error','invalid server')
 827                 set_listview()
 828
 829         elif name in menu_commands:
 830             out = event["name"]
 831
 832         elif name == 'cancel':
 833             out = 'main'
 834
 835         elif name == "key":
 836             if event["data"]["key"] == '4':
 837                 out = 'main'
 838
 839     return out
 840
 841 def add_menu(s):
 842     droid.clearOptionsMenu()
 843     if s == 'main':
 844         droid.addOptionsMenuItem("Send","send",None,"")
 845         droid.addOptionsMenuItem("Receive","receive",None,"")
 846         droid.addOptionsMenuItem("Contacts","contacts",None,"")
 847         droid.addOptionsMenuItem("Settings","settings",None,"")
 848     elif s == 'receive':
 849         droid.addOptionsMenuItem("Copy","clipboard",None,"")
 850         droid.addOptionsMenuItem("Label","edit",None,"")
 851     elif s == 'contacts':
 852         droid.addOptionsMenuItem("Copy","clipboard",None,"")
 853         droid.addOptionsMenuItem("Label","edit",None,"")
 854         droid.addOptionsMenuItem("Pay to","paytocontact",None,"")
 855         #droid.addOptionsMenuItem("Delete","deletecontact",None,"")
 856
 857
 858 def make_bitmap(addr):
 859     # fixme: this is highly inefficient
 860     droid.dialogCreateSpinnerProgress("please wait")
 861     droid.dialogShow()
 862     try:
 863         import pyqrnative, bmp
 864         qr = pyqrnative.QRCode(4, pyqrnative.QRErrorCorrectLevel.L)
 865         qr.addData(addr)
 866         qr.make()
 867         k = qr.getModuleCount()
 868         assert k == 33
 869         bmp.save_qrcode(qr,"/sdcard/sl4a/qrcode.bmp")
 870     finally:
 871         droid.dialogDismiss()
 872
 873
 874
 875
 876 droid = android.Android()
 877 menu_commands = ["send", "receive", "settings", "contacts", "main"]
 878 wallet = None
 879 network = None
 880
 881 class ElectrumGui:
 882
 883     def __init__(self, config, _network):
 884         global wallet, network
 885         wallet = w
 886         network = _network
 887         network.register_callback('updated', update_callback)
 888         network.register_callback('connected', update_callback)
 889         network.register_callback('disconnected', update_callback)
 890         network.register_callback('disconnecting', update_callback)
 891
 892         storage = WalletStorage(config)
 893         if not storage.file_exists:
 894             print "Wallet not found. try 'electrum create'"
 895             exit()
 896
 897         self.wallet = Wallet(storage)
 898         self.wallet.start_threads(network)
 899
 900
 901     def main(self, url):
 902         s = 'main'
 903         while True:
 904             add_menu(s)
 905             if s == 'main':
 906                 droid.fullShow(main_layout())
 907                 s = main_loop()
 908
 909             elif s == 'send':
 910                 droid.fullShow(payto_layout)
 911                 s = payto_loop()
 912
 913             elif s == 'receive':
 914                 make_bitmap(receive_addr)
 915                 droid.fullShow(qr_layout(receive_addr))
 916                 s = receive_loop()
 917
 918             elif s == 'contacts':
 919                 make_bitmap(contact_addr)
 920                 droid.fullShow(qr_layout(contact_addr))
 921                 s = contacts_loop()
 922
 923             elif s == 'settings':
 924                 s = settings_loop()
 925
 926             else:
 927                 break
 928
 929         droid.makeToast("Bye!")
 930
 931
 932     def restore_or_create(self):
 933         droid.dialogCreateAlert("Wallet not found","Do you want to create a new wallet, or restore an existing one?")
 934         droid.dialogSetPositiveButtonText('Create')
 935         droid.dialogSetNeutralButtonText('Restore')
 936         droid.dialogSetNegativeButtonText('Cancel')
 937         droid.dialogShow()
 938         response = droid.dialogGetResponse().result
 939         droid.dialogDismiss()
 940         if not response: return
 941         if response.get('which') == 'negative':
 942             return
 943
 944         return 'restore' if response.get('which') == 'neutral' else 'create'
 945
 946
 947     def seed_dialog(self):
 948         if modal_question("Input method",None,'QR Code', 'mnemonic'):
 949             code = droid.scanBarcode()
 950             r = code.result
 951             if r:
 952                 seed = r['extras']['SCAN_RESULT']
 953             else:
 954                 return
 955         else:
 956             m = modal_input('Mnemonic','please enter your code')
 957             try:
 958                 seed = mnemonic_decode(m.split(' '))
 959             except:
 960                 modal_dialog('error: could not decode this seed')
 961                 return
 962
 963         gap = 5   # default
 964
 965         return str(seed), gap
 966
 967
 968     def network_dialog(self):
 969         return True
 970
 971     def verify_seed(self):
 972         wallet.save_seed()
 973         return True
 974
 975     def show_seed(self):
 976         modal_dialog('Your seed is:', wallet.seed)
 977         modal_dialog('Mnemonic code:', ' '.join(mnemonic_encode(wallet.seed)) )
 978
 979
 980     def password_dialog(self):
 981         change_password_dialog()
 982
 983
 984     def restore_wallet(self):
 985
 986         msg = "recovering wallet..."
 987         droid.dialogCreateSpinnerProgress("Electrum", msg)
 988         droid.dialogShow()
 989
 990         wallet.update()
 991
 992         droid.dialogDismiss()
 993         droid.vibrate()
 994
 995         if wallet.is_found():
 996             wallet.fill_addressbook()
 997             modal_dialog("recovery successful")
 998         else:
 999             if not modal_question("no transactions found for this seed","do you want to keep this wallet?"):
1000                 return False
1001
1002         wallet.save()
1003         return True
1004