LBRY-Vault/gui/text.py
Neil Booth ae4cfc9f0b Unregister network callbacks from QT gui
Rework the callback system in QT to make this easy, and avoid
leaking window references that prevent the window from being
GC-ed on close
2015-11-13 23:36:29 +09:00

502 lines
18 KiB
Python

import curses, datetime, locale
from decimal import Decimal
_ = lambda x:x
from electrum.util import format_satoshis, set_verbosity
from electrum.util import StoreDict
from electrum.bitcoin import is_valid, COIN
from electrum import Wallet, WalletStorage
import tty, sys
class ElectrumGui:
def __init__(self, config, network, plugins):
self.config = config
self.network = network
storage = WalletStorage(config.get_wallet_path())
if not storage.file_exists:
print "Wallet not found. try 'electrum create'"
exit()
self.wallet = Wallet(storage)
self.wallet.start_threads(self.network)
self.contacts = StoreDict(self.config, 'contacts')
locale.setlocale(locale.LC_ALL, '')
self.encoding = locale.getpreferredencoding()
self.stdscr = curses.initscr()
curses.noecho()
curses.cbreak()
curses.start_color()
curses.use_default_colors()
curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_BLUE)
curses.init_pair(2, curses.COLOR_WHITE, curses.COLOR_CYAN)
self.stdscr.keypad(1)
self.stdscr.border(0)
self.maxy, self.maxx = self.stdscr.getmaxyx()
self.set_cursor(0)
self.w = curses.newwin(10, 50, 5, 5)
set_verbosity(False)
self.tab = 0
self.pos = 0
self.popup_pos = 0
self.str_recipient = ""
self.str_description = ""
self.str_amount = ""
self.str_fee = ""
self.history = None
if self.network:
self.network.register_callback(self.update, ['updated'])
self.tab_names = [_("History"), _("Send"), _("Receive"), _("Addresses"), _("Contacts"), _("Banner")]
self.num_tabs = len(self.tab_names)
def set_cursor(self, x):
try:
curses.curs_set(x)
except Exception:
pass
def restore_or_create(self):
pass
def verify_seed(self):
pass
def get_string(self, y, x):
self.set_cursor(1)
curses.echo()
self.stdscr.addstr( y, x, " "*20, curses.A_REVERSE)
s = self.stdscr.getstr(y,x)
curses.noecho()
self.set_cursor(0)
return s
def update(self, event):
self.update_history()
if self.tab == 0:
self.print_history()
self.refresh()
def print_history(self):
width = [20, 40, 14, 14]
delta = (self.maxx - sum(width) - 4)/3
format_str = "%"+"%d"%width[0]+"s"+"%"+"%d"%(width[1]+delta)+"s"+"%"+"%d"%(width[2]+delta)+"s"+"%"+"%d"%(width[3]+delta)+"s"
if self.history is None:
self.update_history()
self.print_list(self.history[::-1], format_str%( _("Date"), _("Description"), _("Amount"), _("Balance")))
def update_history(self):
width = [20, 40, 14, 14]
delta = (self.maxx - sum(width) - 4)/3
format_str = "%"+"%d"%width[0]+"s"+"%"+"%d"%(width[1]+delta)+"s"+"%"+"%d"%(width[2]+delta)+"s"+"%"+"%d"%(width[3]+delta)+"s"
b = 0
self.history = []
for item in self.wallet.get_history():
tx_hash, conf, value, timestamp, balance = item
if conf:
try:
time_str = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
except Exception:
time_str = "------"
else:
time_str = 'pending'
label, is_default_label = self.wallet.get_label(tx_hash)
if len(label) > 40:
label = label[0:37] + '...'
self.history.append( format_str%( time_str, label, format_satoshis(value, whitespaces=True), format_satoshis(balance, whitespaces=True) ) )
def print_balance(self):
if not self.network:
msg = _("Offline")
elif self.network.is_connected():
if not self.wallet.up_to_date:
msg = _("Synchronizing...")
else:
c, u, x = self.wallet.get_balance()
msg = _("Balance")+": %f "%(Decimal(c) / COIN)
if u:
msg += " [%f unconfirmed]"%(Decimal(u) / COIN)
if x:
msg += " [%f unmatured]"%(Decimal(x) / COIN)
else:
msg = _("Not connected")
self.stdscr.addstr( self.maxy -1, 3, msg)
for i in range(self.num_tabs):
self.stdscr.addstr( 0, 2 + 2*i + len(''.join(self.tab_names[0:i])), ' '+self.tab_names[i]+' ', curses.A_BOLD if self.tab == i else 0)
self.stdscr.addstr(self.maxy -1, self.maxx-30, ' '.join([_("Settings"), _("Network"), _("Quit")]))
def print_receive(self):
addr = self.wallet.get_unused_address(None)
self.stdscr.addstr(2, 1, "Address: "+addr)
self.print_qr(addr)
def print_contacts(self):
messages = map(lambda x: "%20s %45s "%(x[0], x[1][1]), self.contacts.items())
self.print_list(messages, "%19s %15s "%("Key", "Value"))
def print_addresses(self):
fmt = "%-35s %-30s"
messages = map(lambda addr: fmt % (addr, self.wallet.labels.get(addr,"")), self.wallet.addresses())
self.print_list(messages, fmt % ("Address", "Label"))
def print_edit_line(self, y, label, text, index, size):
text += " "*(size - len(text) )
self.stdscr.addstr( y, 2, label)
self.stdscr.addstr( y, 15, text, curses.A_REVERSE if self.pos%6==index else curses.color_pair(1))
def print_send_tab(self):
self.stdscr.clear()
self.print_edit_line(3, _("Pay to"), self.str_recipient, 0, 40)
self.print_edit_line(5, _("Description"), self.str_description, 1, 40)
self.print_edit_line(7, _("Amount"), self.str_amount, 2, 15)
self.print_edit_line(9, _("Fee"), self.str_fee, 3, 15)
self.stdscr.addstr( 12, 15, _("[Send]"), curses.A_REVERSE if self.pos%6==4 else curses.color_pair(2))
self.stdscr.addstr( 12, 25, _("[Clear]"), curses.A_REVERSE if self.pos%6==5 else curses.color_pair(2))
def print_banner(self):
if self.network:
self.print_list( self.network.banner.split('\n'))
def print_qr(self, data):
import qrcode, StringIO
s = StringIO.StringIO()
self.qr = qrcode.QRCode()
self.qr.add_data(data)
self.qr.print_ascii(out=s, invert=True)
msg = s.getvalue()
lines = msg.split('\n')
for i, l in enumerate(lines):
l = l.encode("utf-8")
self.stdscr.addstr(i+5, 5, l)
def print_list(self, list, firstline = None):
self.maxpos = len(list)
if not self.maxpos: return
if firstline:
firstline += " "*(self.maxx -2 - len(firstline))
self.stdscr.addstr( 1, 1, firstline )
for i in range(self.maxy-4):
msg = list[i] if i < len(list) else ""
msg += " "*(self.maxx - 2 - len(msg))
m = msg[0:self.maxx - 2]
m = m.encode(self.encoding)
self.stdscr.addstr( i+2, 1, m, curses.A_REVERSE if i == (self.pos % self.maxpos) else 0)
def refresh(self):
if self.tab == -1: return
self.stdscr.border(0)
self.print_balance()
self.stdscr.refresh()
def main_command(self):
c = self.stdscr.getch()
print c
if c == curses.KEY_RIGHT: self.tab = (self.tab + 1)%self.num_tabs
elif c == curses.KEY_LEFT: self.tab = (self.tab - 1)%self.num_tabs
elif c == curses.KEY_DOWN: self.pos +=1
elif c == curses.KEY_UP: self.pos -= 1
elif c == 9: self.pos +=1 # tab
elif curses.unctrl(c) in ['^W', '^C', '^X', '^Q']: self.tab = -1
elif curses.unctrl(c) in ['^N']: self.network_dialog()
elif curses.unctrl(c) == '^S': self.settings_dialog()
else: return c
if self.pos<0: self.pos=0
if self.pos>=self.maxpos: self.pos=self.maxpos - 1
def run_tab(self, i, print_func, exec_func):
while self.tab == i:
self.stdscr.clear()
print_func()
self.refresh()
c = self.main_command()
if c: exec_func(c)
def run_history_tab(self, c):
if c == 10:
out = self.run_popup('',["blah","foo"])
def edit_str(self, target, c, is_num=False):
# detect backspace
if c in [8, 127, 263] and target:
target = target[:-1]
elif not is_num or curses.unctrl(c) in '0123456789.':
target += curses.unctrl(c)
return target
def run_send_tab(self, c):
if self.pos%6 == 0:
self.str_recipient = self.edit_str(self.str_recipient, c)
if self.pos%6 == 1:
self.str_description = self.edit_str(self.str_description, c)
if self.pos%6 == 2:
self.str_amount = self.edit_str(self.str_amount, c, True)
elif self.pos%6 == 3:
self.str_fee = self.edit_str(self.str_fee, c, True)
elif self.pos%6==4:
if c == 10: self.do_send()
elif self.pos%6==5:
if c == 10: self.do_clear()
def run_receive_tab(self, c):
if c == 10:
out = self.run_popup('Address', ["Edit label", "Freeze", "Prioritize"])
def run_contacts_tab(self, c):
if c == 10 and self.contacts:
out = self.run_popup('Adress', ["Copy", "Pay to", "Edit label", "Delete"]).get('button')
key = self.contacts.keys()[self.pos%len(self.contacts.keys())]
if out == "Pay to":
self.tab = 1
self.str_recipient = key
self.pos = 2
elif out == "Edit label":
s = self.get_string(6 + self.pos, 18)
if s:
self.wallet.labels[address] = s
def run_banner_tab(self, c):
self.show_message(repr(c))
pass
def main(self):
tty.setraw(sys.stdin)
while self.tab != -1:
self.run_tab(0, self.print_history, self.run_history_tab)
self.run_tab(1, self.print_send_tab, self.run_send_tab)
self.run_tab(2, self.print_receive, self.run_receive_tab)
self.run_tab(3, self.print_addresses, self.run_banner_tab)
self.run_tab(4, self.print_contacts, self.run_contacts_tab)
self.run_tab(5, self.print_banner, self.run_banner_tab)
tty.setcbreak(sys.stdin)
curses.nocbreak()
self.stdscr.keypad(0)
curses.echo()
curses.endwin()
def do_clear(self):
self.str_amount = ''
self.str_recipient = ''
self.str_fee = ''
self.str_description = ''
def do_send(self):
if not is_valid(self.str_recipient):
self.show_message(_('Invalid Bitcoin address'))
return
try:
amount = int(Decimal(self.str_amount) * COIN)
except Exception:
self.show_message(_('Invalid Amount'))
return
try:
fee = int(Decimal(self.str_fee) * COIN)
except Exception:
self.show_message(_('Invalid Fee'))
return
if self.wallet.use_encryption:
password = self.password_dialog()
if not password:
return
else:
password = None
try:
tx = self.wallet.mktx( [("address", self.str_recipient, amount)], password, self.config, fee)
except Exception as e:
self.show_message(str(e))
return
if self.str_description:
self.wallet.labels[tx.hash()] = self.str_description
h = self.wallet.send_tx(tx)
self.show_message(_("Please wait..."), getchar=False)
self.wallet.tx_event.wait()
status, msg = self.wallet.receive_tx( h, tx )
if status:
self.show_message(_('Payment sent.'))
self.do_clear()
#self.update_contacts_tab()
else:
self.show_message(_('Error'))
def show_message(self, message, getchar = True):
w = self.w
w.clear()
w.border(0)
for i, line in enumerate(message.split('\n')):
w.addstr(2+i,2,line)
w.refresh()
if getchar: c = self.stdscr.getch()
def run_popup(self, title, items):
return self.run_dialog(title, map(lambda x: {'type':'button','label':x}, items), interval=1, y_pos = self.pos+3)
def network_dialog(self):
if not self.network: return
host, port, protocol, proxy_config, auto_connect = self.network.get_parameters()
srv = 'auto-connect' if auto_connect else self.network.default_server
out = self.run_dialog('Network', [
{'label':'server', 'type':'str', 'value':srv},
{'label':'proxy', 'type':'str', 'value':self.config.get('proxy', '')},
], buttons = 1)
if out:
if out.get('server'):
server = out.get('server')
auto_connect = server == 'auto-connect'
if not auto_connect:
try:
host, port, protocol = server.split(':')
except Exception:
self.show_message("Error:" + server + "\nIn doubt, type \"auto-connect\"")
return False
if out.get('proxy'):
proxy = self.parse_proxy_options(out.get('proxy'))
else:
proxy = None
self.network.set_parameters(host, port, protocol, proxy, auto_connect)
def settings_dialog(self):
out = self.run_dialog('Settings', [
{'label':'Default GUI', 'type':'list', 'choices':['classic','lite','gtk','text'], 'value':self.config.get('gui')},
{'label':'Default fee', 'type':'satoshis', 'value': format_satoshis(self.wallet.fee_per_kb).strip() }
], buttons = 1)
if out:
if out.get('Default GUI'):
self.config.set_key('gui', out['Default GUI'], True)
if out.get('Default fee'):
fee = int(Decimal(out['Default fee']) * COIN)
self.config.set_key('fee_per_kb', fee, True)
def password_dialog(self):
out = self.run_dialog('Password', [
{'label':'Password', 'type':'password', 'value':''}
], buttons = 1)
return out.get('Password')
def run_dialog(self, title, items, interval=2, buttons=None, y_pos=3):
self.popup_pos = 0
self.w = curses.newwin( 5 + len(items)*interval + (2 if buttons else 0), 50, y_pos, 5)
w = self.w
out = {}
while True:
w.clear()
w.border(0)
w.addstr( 0, 2, title)
num = len(items)
numpos = num
if buttons: numpos += 2
for i in range(num):
item = items[i]
label = item.get('label')
if item.get('type') == 'list':
value = item.get('value','')
elif item.get('type') == 'satoshis':
value = item.get('value','')
elif item.get('type') == 'str':
value = item.get('value','')
elif item.get('type') == 'password':
value = '*'*len(item.get('value',''))
else:
value = ''
if value is None:
value = ''
if len(value)<20:
value += ' '*(20-len(value))
if item.has_key('value'):
w.addstr( 2+interval*i, 2, label)
w.addstr( 2+interval*i, 15, value, curses.A_REVERSE if self.popup_pos%numpos==i else curses.color_pair(1) )
else:
w.addstr( 2+interval*i, 2, label, curses.A_REVERSE if self.popup_pos%numpos==i else 0)
if buttons:
w.addstr( 5+interval*i, 10, "[ ok ]", curses.A_REVERSE if self.popup_pos%numpos==(numpos-2) else curses.color_pair(2))
w.addstr( 5+interval*i, 25, "[cancel]", curses.A_REVERSE if self.popup_pos%numpos==(numpos-1) else curses.color_pair(2))
w.refresh()
c = self.stdscr.getch()
if c in [ord('q'), 27]: break
elif c in [curses.KEY_LEFT, curses.KEY_UP]: self.popup_pos -= 1
elif c in [curses.KEY_RIGHT, curses.KEY_DOWN]: self.popup_pos +=1
else:
i = self.popup_pos%numpos
if buttons and c==10:
if i == numpos-2:
return out
elif i == numpos -1:
return {}
item = items[i]
_type = item.get('type')
if _type == 'str':
item['value'] = self.edit_str(item['value'], c)
out[item.get('label')] = item.get('value')
elif _type == 'password':
item['value'] = self.edit_str(item['value'], c)
out[item.get('label')] = item ['value']
elif _type == 'satoshis':
item['value'] = self.edit_str(item['value'], c, True)
out[item.get('label')] = item.get('value')
elif _type == 'list':
choices = item.get('choices')
try:
j = choices.index(item.get('value'))
except Exception:
j = 0
new_choice = choices[(j + 1)% len(choices)]
item['value'] = new_choice
out[item.get('label')] = item.get('value')
elif _type == 'button':
out['button'] = item.get('label')
break
return out