tlightning_dialog.py - electrum - Electrum Bitcoin wallet
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tlightning_dialog.py (3650B)
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1 #!/usr/bin/env python
2 #
3 # Electrum - lightweight Bitcoin client
4 # Copyright (C) 2012 thomasv@gitorious
5 #
6 # Permission is hereby granted, free of charge, to any person
7 # obtaining a copy of this software and associated documentation files
8 # (the "Software"), to deal in the Software without restriction,
9 # including without limitation the rights to use, copy, modify, merge,
10 # publish, distribute, sublicense, and/or sell copies of the Software,
11 # and to permit persons to whom the Software is furnished to do so,
12 # subject to the following conditions:
13 #
14 # The above copyright notice and this permission notice shall be
15 # included in all copies or substantial portions of the Software.
16 #
17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
21 # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
22 # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 # SOFTWARE.
25
26 from typing import TYPE_CHECKING
27
28 from PyQt5.QtWidgets import (QDialog, QLabel, QVBoxLayout, QPushButton)
29
30 from electrum import util
31 from electrum.i18n import _
32
33 from .util import Buttons
34
35 if TYPE_CHECKING:
36 from . import ElectrumGui
37
38
39 class LightningDialog(QDialog):
40
41 def __init__(self, gui_object: 'ElectrumGui'):
42 QDialog.__init__(self)
43 self.gui_object = gui_object
44 self.config = gui_object.config
45 self.network = gui_object.daemon.network
46 assert self.network
47 self.setWindowTitle(_('Lightning Network'))
48 self.setMinimumWidth(600)
49 vbox = QVBoxLayout(self)
50 self.num_peers = QLabel('')
51 vbox.addWidget(self.num_peers)
52 self.num_nodes = QLabel('')
53 vbox.addWidget(self.num_nodes)
54 self.num_channels = QLabel('')
55 vbox.addWidget(self.num_channels)
56 self.status = QLabel('')
57 vbox.addWidget(self.status)
58 vbox.addStretch(1)
59 b = QPushButton(_('Close'))
60 b.clicked.connect(self.close)
61 vbox.addLayout(Buttons(b))
62 util.register_callback(self.on_channel_db, ['channel_db'])
63 util.register_callback(self.set_num_peers, ['gossip_peers'])
64 util.register_callback(self.set_unknown_channels, ['unknown_channels'])
65 self.network.channel_db.update_counts() # trigger callback
66 if self.network.lngossip:
67 self.set_num_peers('', self.network.lngossip.num_peers())
68 self.set_unknown_channels('', len(self.network.lngossip.unknown_ids))
69 else:
70 self.num_peers.setText(_('Lightning gossip not active.'))
71
72 def on_channel_db(self, event, num_nodes, num_channels, num_policies):
73 self.num_nodes.setText(_('{} nodes').format(num_nodes))
74 self.num_channels.setText(_('{} channels').format(num_channels))
75
76 def set_num_peers(self, event, num_peers):
77 self.num_peers.setText(_('Connected to {} peers').format(num_peers))
78
79 def set_unknown_channels(self, event, unknown):
80 self.status.setText(_('Requesting {} channels...').format(unknown) if unknown else '')
81
82 def is_hidden(self):
83 return self.isMinimized() or self.isHidden()
84
85 def show_or_hide(self):
86 if self.is_hidden():
87 self.bring_to_top()
88 else:
89 self.hide()
90
91 def bring_to_top(self):
92 self.show()
93 self.raise_()
94
95 def closeEvent(self, event):
96 self.gui_object.lightning_dialog = None
97 event.accept()