from weakref import ref
from decimal import Decimal
import re
import datetime
import traceback, sys
from kivy.app import App
from kivy.cache import Cache
from kivy.clock import Clock
from kivy.compat import string_types
from kivy.properties import (ObjectProperty, DictProperty, NumericProperty,
ListProperty, StringProperty)
from kivy.uix.label import Label
from kivy.lang import Builder
from kivy.factory import Factory
from kivy.utils import platform
from electrum.util import profiler, parse_URI, format_time, InvalidPassword, NotEnoughFunds
from electrum import bitcoin
from electrum.util import timestamp_to_datetime
from electrum.plugins import run_hook
from electrum.paymentrequest import PR_UNPAID, PR_PAID, PR_UNKNOWN, PR_EXPIRED
from context_menu import ContextMenu
from electrum_gui.kivy.i18n import _
class EmptyLabel(Factory.Label):
pass
class CScreen(Factory.Screen):
__events__ = ('on_activate', 'on_deactivate', 'on_enter', 'on_leave')
action_view = ObjectProperty(None)
loaded = False
kvname = None
context_menu = None
menu_actions = []
app = App.get_running_app()
def _change_action_view(self):
app = App.get_running_app()
action_bar = app.root.manager.current_screen.ids.action_bar
_action_view = self.action_view
if (not _action_view) or _action_view.parent:
return
action_bar.clear_widgets()
action_bar.add_widget(_action_view)
def on_enter(self):
# FIXME: use a proper event don't use animation time of screen
Clock.schedule_once(lambda dt: self.dispatch('on_activate'), .25)
pass
def update(self):
pass
@profiler
def load_screen(self):
self.screen = Builder.load_file('gui/kivy/uix/ui_screens/' + self.kvname + '.kv')
self.add_widget(self.screen)
self.loaded = True
self.update()
setattr(self.app, self.kvname + '_screen', self)
def on_activate(self):
if self.kvname and not self.loaded:
self.load_screen()
#Clock.schedule_once(lambda dt: self._change_action_view())
def on_leave(self):
self.dispatch('on_deactivate')
def on_deactivate(self):
self.hide_menu()
def hide_menu(self):
if self.context_menu is not None:
self.remove_widget(self.context_menu)
self.context_menu = None
def show_menu(self, obj):
self.hide_menu()
self.context_menu = ContextMenu(obj, self.menu_actions)
self.add_widget(self.context_menu)
TX_ICONS = [
"close",
"close",
"close",
"unconfirmed",
"close",
"clock1",
"clock2",
"clock3",
"clock4",
"clock5",
"confirmed",
]
class HistoryScreen(CScreen):
tab = ObjectProperty(None)
kvname = 'history'
cards = {}
def __init__(self, **kwargs):
self.ra_dialog = None
super(HistoryScreen, self).__init__(**kwargs)
self.menu_actions = [ ('Label', self.label_dialog), ('Details', self.show_tx)]
def show_tx(self, obj):
tx_hash = obj.tx_hash
tx = self.app.wallet.transactions.get(tx_hash)
if not tx:
return
self.app.tx_dialog(tx)
def label_dialog(self, obj):
from dialogs.label_dialog import LabelDialog
key = obj.tx_hash
text = self.app.wallet.get_label(key)
def callback(text):
self.app.wallet.set_label(key, text)
self.update()
d = LabelDialog(_('Enter Transaction Label'), text, callback)
d.open()
def get_card(self, tx_hash, height, conf, timestamp, value, balance):
status, status_str = self.app.wallet.get_tx_status(tx_hash, height, conf, timestamp)
icon = "atlas://gui/kivy/theming/light/" + TX_ICONS[status]
label = self.app.wallet.get_label(tx_hash) if tx_hash else _('Pruned transaction outputs')
date = timestamp_to_datetime(timestamp)
ri = self.cards.get(tx_hash)
if ri is None:
ri = Factory.HistoryItem()
ri.screen = self
ri.tx_hash = tx_hash
self.cards[tx_hash] = ri
ri.icon = icon
ri.date = status_str
ri.message = label
ri.value = value or 0
ri.value_known = value is not None
ri.confirmations = conf
if self.app.fiat_unit and date:
rate = run_hook('history_rate', date)
if rate:
s = run_hook('value_str', value, rate)
ri.quote_text = '' if s is None else s + ' ' + self.app.fiat_unit
return ri
def update(self, see_all=False):
if self.app.wallet is None:
return
history = reversed(self.app.wallet.get_history())
history_card = self.screen.ids.history_container
history_card.clear_widgets()
count = 0
for item in history:
ri = self.get_card(*item)
count += 1
history_card.add_widget(ri)
if count == 0:
msg = _('This screen shows your list of transactions. It is currently empty.')
history_card.add_widget(EmptyLabel(text=msg))
class SendScreen(CScreen):
kvname = 'send'
payment_request = None
def set_URI(self, text):
import electrum
try:
uri = electrum.util.parse_URI(text, self.app.on_pr)
except:
self.app.show_info(_("Not a Bitcoin URI"))
return
amount = uri.get('amount')
self.screen.address = uri.get('address', '')
self.screen.message = uri.get('message', '')
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
self.payment_request = None
self.screen.is_pr = False
def update(self):
pass
def do_clear(self):
self.screen.amount = ''
self.screen.message = ''
self.screen.address = ''
self.payment_request = None
self.screen.is_pr = False
def set_request(self, pr):
self.screen.address = pr.get_requestor()
amount = pr.get_amount()
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
self.screen.message = pr.get_memo()
if pr.is_pr():
self.screen.is_pr = True
self.payment_request = pr
else:
self.screen.is_pr = False
self.payment_request = None
def do_save(self):
if not self.screen.address:
return
if self.screen.is_pr:
# it sould be already saved
return
# save address as invoice
from electrum.paymentrequest import make_unsigned_request, PaymentRequest
req = {'address':self.screen.address, 'memo':self.screen.message}
amount = self.app.get_amount(self.screen.amount) if self.screen.amount else 0
req['amount'] = amount
pr = make_unsigned_request(req).SerializeToString()
pr = PaymentRequest(pr)
self.app.invoices.add(pr)
self.app.update_tab('invoices')
self.app.show_info(_("Invoice saved"))
if pr.is_pr():
self.screen.is_pr = True
self.payment_request = pr
else:
self.screen.is_pr = False
self.payment_request = None
def do_paste(self):
contents = unicode(self.app._clipboard.paste())
if not contents:
self.app.show_info(_("Clipboard is empty"))
return
self.set_URI(contents)
def do_send(self):
if self.screen.is_pr:
if self.payment_request.has_expired():
self.app.show_error(_('Payment request has expired'))
return
outputs = self.payment_request.get_outputs()
else:
address = str(self.screen.address)
if not address:
self.app.show_error(_('Recipient not specified.') + ' ' + _('Please scan a Bitcoin address or a payment request'))
return
if not bitcoin.is_address(address):
self.app.show_error(_('Invalid Bitcoin Address') + ':\n' + address)
return
try:
amount = self.app.get_amount(self.screen.amount)
except:
self.app.show_error(_('Invalid amount') + ':\n' + self.screen.amount)
return
outputs = [(bitcoin.TYPE_ADDRESS, address, amount)]
message = unicode(self.screen.message)
amount = sum(map(lambda x:x[2], outputs))
if self.app.electrum_config.get('use_rbf'):
from dialogs.question import Question
d = Question(_('Should this transaction be replaceable?'), lambda b: self._do_send(amount, message, outputs, b))
d.open()
else:
self._do_send(amount, message, outputs, False)
def _do_send(self, amount, message, outputs, rbf):
# make unsigned transaction
coins = self.app.wallet.get_spendable_coins()
config = self.app.electrum_config
try:
tx = self.app.wallet.make_unsigned_transaction(coins, outputs, config, None)
except NotEnoughFunds:
self.app.show_error(_("Not enough funds"))
return
except Exception as e:
traceback.print_exc(file=sys.stdout)
self.app.show_error(str(e))
return
if rbf:
tx.set_sequence(0)
fee = tx.get_fee()
msg = [
_("Amount to be sent") + ": " + self.app.format_amount_and_units(amount),
_("Mining fee") + ": " + self.app.format_amount_and_units(fee),
]
if fee >= config.get('confirm_fee', 100000):
msg.append(_('Warning')+ ': ' + _("The fee for this transaction seems unusually high."))
msg.append(_("Enter your PIN code to proceed"))
self.app.protected('\n'.join(msg), self.send_tx, (tx, message))
def send_tx(self, tx, message, password):
def on_success(tx):
if tx.is_complete():
self.app.broadcast(tx, self.payment_request)
self.app.wallet.set_label(tx.hash(), message)
else:
self.app.tx_dialog(tx)
def on_failure(error):
self.app.show_error(error)
if self.app.wallet.can_sign(tx):
self.app.show_info("Signing...")
self.app.sign_tx(tx, password, on_success, on_failure)
else:
self.app.tx_dialog(tx)
class ReceiveScreen(CScreen):
kvname = 'receive'
def update(self):
if not self.screen.address:
self.get_new_address()
else:
status = self.app.wallet.get_request_status(self.screen.address)
self.screen.status = _('Payment received') if status == PR_PAID else ''
def clear(self):
self.screen.address = ''
self.screen.amount = ''
self.screen.message = ''
def get_new_address(self):
if not self.app.wallet:
return False
addr = self.app.wallet.get_unused_address()
if addr is None:
return False
self.clear()
self.screen.address = addr
return True
def on_address(self, addr):
req = self.app.wallet.get_payment_request(addr, self.app.electrum_config)
self.screen.status = ''
if req:
self.screen.message = unicode(req.get('memo', ''))
amount = req.get('amount')
self.screen.amount = self.app.format_amount_and_units(amount) if amount else ''
status = req.get('status', PR_UNKNOWN)
self.screen.status = _('Payment received') if status == PR_PAID else ''
Clock.schedule_once(lambda dt: self.update_qr())
def get_URI(self):
from electrum.util import create_URI
amount = self.screen.amount
if amount:
a, u = self.screen.amount.split()
assert u == self.app.base_unit
amount = Decimal(a) * pow(10, self.app.decimal_point())
return create_URI(self.screen.address, amount, self.screen.message)
@profiler
def update_qr(self):
uri = self.get_URI()
qr = self.screen.ids.qr
qr.set_data(uri)
def do_share(self):
uri = self.get_URI()
self.app.do_share(uri, _("Share Bitcoin Request"))
def do_copy(self):
uri = self.get_URI()
self.app._clipboard.copy(uri)
self.app.show_info(_('Request copied to clipboard'))
def save_request(self):
addr = str(self.screen.address)
amount = str(self.screen.amount)
message = unicode(self.screen.message)
amount = self.app.get_amount(amount) if amount else 0
req = self.app.wallet.make_payment_request(addr, amount, message, None)
self.app.wallet.add_payment_request(req, self.app.electrum_config)
self.app.update_tab('requests')
def on_amount_or_message(self):
self.save_request()
Clock.schedule_once(lambda dt: self.update_qr())
def do_new(self):
addr = self.get_new_address()
if not addr:
self.app.show_info(_('Please use the existing requests first.'))
else:
self.save_request()
self.app.show_info(_('New request added to your list.'))
invoice_text = {
PR_UNPAID:_('Pending'),
PR_UNKNOWN:_('Unknown'),
PR_PAID:_('Paid'),
PR_EXPIRED:_('Expired')
}
request_text = {
PR_UNPAID: _('Pending'),
PR_UNKNOWN: _('Unknown'),
PR_PAID: _('Received'),
PR_EXPIRED: _('Expired')
}
pr_icon = {
PR_UNPAID: 'atlas://gui/kivy/theming/light/important',
PR_UNKNOWN: 'atlas://gui/kivy/theming/light/important',
PR_PAID: 'atlas://gui/kivy/theming/light/confirmed',
PR_EXPIRED: 'atlas://gui/kivy/theming/light/close'
}
class InvoicesScreen(CScreen):
kvname = 'invoices'
cards = {}
def get_card(self, pr):
key = pr.get_id()
ci = self.cards.get(key)
if ci is None:
ci = Factory.InvoiceItem()
ci.key = key
ci.screen = self
self.cards[key] = ci
ci.requestor = pr.get_requestor()
ci.memo = pr.get_memo()
amount = pr.get_amount()
if amount:
ci.amount = self.app.format_amount_and_units(amount)
status = self.app.invoices.get_status(ci.key)
ci.status = invoice_text[status]
ci.icon = pr_icon[status]
else:
ci.amount = _('No Amount')
ci.status = ''
exp = pr.get_expiration_date()
ci.date = format_time(exp) if exp else _('Never')
return ci
def update(self):
self.menu_actions = [('Pay', self.do_pay), ('Details', self.do_view), ('Delete', self.do_delete)]
invoices_list = self.screen.ids.invoices_container
invoices_list.clear_widgets()
_list = self.app.invoices.sorted_list()
for pr in _list:
ci = self.get_card(pr)
invoices_list.add_widget(ci)
if not _list:
msg = _('This screen shows the list of payment requests that have been sent to you. You may also use it to store contact addresses.')
invoices_list.add_widget(EmptyLabel(text=msg))
def do_pay(self, obj):
pr = self.app.invoices.get(obj.key)
self.app.on_pr(pr)
def do_view(self, obj):
pr = self.app.invoices.get(obj.key)
pr.verify(self.app.contacts)
self.app.show_pr_details(pr.get_dict(), obj.status, True)
def do_delete(self, obj):
from dialogs.question import Question
def cb(result):
if result:
self.app.invoices.remove(obj.key)
self.app.update_tab('invoices')
d = Question(_('Delete invoice?'), cb)
d.open()
class RequestsScreen(CScreen):
kvname = 'requests'
cards = {}
def get_card(self, req):
address = req['address']
timestamp = req.get('time', 0)
amount = req.get('amount')
expiration = req.get('exp', None)
status = req.get('status')
signature = req.get('sig')
ci = self.cards.get(address)
if ci is None:
ci = Factory.RequestItem()
ci.screen = self
ci.address = address
self.cards[address] = ci
ci.memo = self.app.wallet.get_label(address)
if amount:
status = req.get('status')
ci.status = request_text[status]
else:
received = self.app.wallet.get_addr_received(address)
ci.status = self.app.format_amount_and_units(amount)
ci.icon = pr_icon[status]
ci.amount = self.app.format_amount_and_units(amount) if amount else _('No Amount')
ci.date = format_time(timestamp)
return ci
def update(self):
self.menu_actions = [('Show', self.do_show), ('Details', self.do_view), ('Delete', self.do_delete)]
requests_list = self.screen.ids.requests_container
requests_list.clear_widgets()
_list = self.app.wallet.get_sorted_requests(self.app.electrum_config) if self.app.wallet else []
for req in _list:
ci = self.get_card(req)
requests_list.add_widget(ci)
if not _list:
msg = _('This screen shows the list of payment requests you made.')
requests_list.add_widget(EmptyLabel(text=msg))
def do_show(self, obj):
self.app.show_request(obj.address)
def do_view(self, obj):
req = self.app.wallet.get_payment_request(obj.address, self.app.electrum_config)
status = req.get('status')
amount = req.get('amount')
address = req['address']
if amount:
status = req.get('status')
status = request_text[status]
else:
received_amount = self.app.wallet.get_addr_received(address)
status = self.app.format_amount_and_units(received_amount)
self.app.show_pr_details(req, status, False)
def do_delete(self, obj):
from dialogs.question import Question
def cb(result):
if result:
self.app.wallet.remove_payment_request(obj.address, self.app.electrum_config)
self.update()
d = Question(_('Delete request?'), cb)
d.open()
class TabbedCarousel(Factory.TabbedPanel):
'''Custom TabbedPanel using a carousel used in the Main Screen
'''
carousel = ObjectProperty(None)
def animate_tab_to_center(self, value):
scrlv = self._tab_strip.parent
if not scrlv:
return
idx = self.tab_list.index(value)
n = len(self.tab_list)
if idx in [0, 1]:
scroll_x = 1
elif idx in [n-1, n-2]:
scroll_x = 0
else:
scroll_x = 1. * (n - idx - 1) / (n - 1)
mation = Factory.Animation(scroll_x=scroll_x, d=.25)
mation.cancel_all(scrlv)
mation.start(scrlv)
def on_current_tab(self, instance, value):
self.animate_tab_to_center(value)
def on_index(self, instance, value):
current_slide = instance.current_slide
if not hasattr(current_slide, 'tab'):
return
tab = current_slide.tab
ct = self.current_tab
try:
if ct.text != tab.text:
carousel = self.carousel
carousel.slides[ct.slide].dispatch('on_leave')
self.switch_to(tab)
carousel.slides[tab.slide].dispatch('on_enter')
except AttributeError:
current_slide.dispatch('on_enter')
def switch_to(self, header):
# we have to replace the functionality of the original switch_to
if not header:
return
if not hasattr(header, 'slide'):
header.content = self.carousel
super(TabbedCarousel, self).switch_to(header)
try:
tab = self.tab_list[-1]
except IndexError:
return
self._current_tab = tab
tab.state = 'down'
return
carousel = self.carousel
self.current_tab.state = "normal"
header.state = 'down'
self._current_tab = header
# set the carousel to load the appropriate slide
# saved in the screen attribute of the tab head
slide = carousel.slides[header.slide]
if carousel.current_slide != slide:
carousel.current_slide.dispatch('on_leave')
carousel.load_slide(slide)
slide.dispatch('on_enter')
def add_widget(self, widget, index=0):
if isinstance(widget, Factory.CScreen):
self.carousel.add_widget(widget)
return
super(TabbedCarousel, self).add_widget(widget, index=index)