tkivy: use EventDispatcher with exchange rates plugin - electrum - Electrum Bitcoin wallet
(HTM) git clone https://git.parazyd.org/electrum
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---
(DIR) commit a1eaf351a70d6b779eb278148cb6c62584d21b2a
(DIR) parent 9b09c5535652079e262a1f87bf054929568bd12b
(HTM) Author: ThomasV <thomasv@electrum.org>
Date: Mon, 25 Jan 2016 19:30:16 +0100
kivy: use EventDispatcher with exchange rates plugin
Diffstat:
M gui/kivy/main_window.py | 10 ++++++++++
M gui/kivy/uix/dialogs/fx_dialog.py | 24 +++++++++++++++++-------
M plugins/exchange_rate/exchange_rat… | 2 +-
M plugins/exchange_rate/kivy.py | 37 ++++++++++++++++++++++++++-----
4 files changed, 60 insertions(+), 13 deletions(-)
---
(DIR) diff --git a/gui/kivy/main_window.py b/gui/kivy/main_window.py
t@@ -64,6 +64,15 @@ class ElectrumWindow(App):
electrum_config = ObjectProperty(None)
+ def on_quotes(self, d):
+ print "main_window: on_quotes"
+ pass
+
+ def on_history(self, d):
+ print "main_window: on_history"
+ if self.history_screen:
+ self.history_screen.update()
+
def _get_bu(self):
return self.electrum_config.get('base_unit', 'mBTC')
t@@ -299,6 +308,7 @@ class ElectrumWindow(App):
self.on_size(win, win.size)
self.init_ui()
self.load_wallet_by_name(self.electrum_config.get_wallet_path())
+ run_hook('init_kivy', self)
def load_wallet_by_name(self, wallet_path):
if not wallet_path:
(DIR) diff --git a/gui/kivy/uix/dialogs/fx_dialog.py b/gui/kivy/uix/dialogs/fx_dialog.py
t@@ -80,6 +80,8 @@ from functools import partial
class FxDialog(Factory.Popup):
+ __events__ = ('on_quotes', )
+
def __init__(self, app, plugins, config, callback):
Factory.Popup.__init__(self)
self.app = app
t@@ -88,34 +90,42 @@ class FxDialog(Factory.Popup):
self.plugins = plugins
p = self.plugins.get('exchange_rate')
self.ids.enabled.active = bool(p)
+ if p:
+ p.dispatcher.bind(on_quotes=self.on_quotes)
+
+ def on_quotes(self, b):
+ self.add_currencies()
def on_active(self, b):
if b:
- p = self.plugins.enable('exchange_rate')
- p.init_kivy(self.app)
+ p = self.plugins.get('exchange_rate')
+ if p is None:
+ p = self.plugins.enable('exchange_rate')
+ p.init_kivy(self.app)
+ p.dispatcher.bind(on_quotes=self.on_quotes)
+
values = sorted(p.exchanges.keys())
text = p.exchange.name()
else:
self.plugins.disable('exchange_rate')
values = []
text = ''
- Clock.schedule_once(partial(self.add_exchanges, values, text), 0.1)
+ Clock.schedule_once(lambda dt: self.add_exchanges(values, text))
+ Clock.schedule_once(lambda dt: self.add_currencies())
- def add_exchanges(self, values, text, dt):
+ def add_exchanges(self, values, text):
ex = self.ids.exchanges
ex.values = values
ex.text = text
-
def on_exchange(self, text):
if not text:
return
p = self.plugins.get('exchange_rate')
if p and text != p.exchange.name():
p.set_exchange(text)
- Clock.schedule_once(self.add_currencies, 1)
- def add_currencies(self, dt):
+ def add_currencies(self):
p = self.plugins.get('exchange_rate')
currencies = sorted(p.exchange.quotes.keys()) if p else []
self.ids.ccy.values = currencies
(DIR) diff --git a/plugins/exchange_rate/exchange_rate.py b/plugins/exchange_rate/exchange_rate.py
t@@ -55,9 +55,9 @@ class ExchangeBase(PrintError):
self.print_error("getting fx quotes for", ccy)
self.quotes = self.get_rates(ccy)
self.print_error("received fx quotes")
- self.on_quotes()
except BaseException as e:
self.print_error("failed fx quotes:", e)
+ self.on_quotes()
def update(self, ccy):
t = Thread(target=self.update_safe, args=(ccy,))
(DIR) diff --git a/plugins/exchange_rate/kivy.py b/plugins/exchange_rate/kivy.py
t@@ -1,14 +1,38 @@
-from exchange_rate import FxPlugin
+from __future__ import absolute_import
+
+from .exchange_rate import FxPlugin
from electrum.plugins import hook
+
+from kivy.event import EventDispatcher
+
+class MyEventDispatcher(EventDispatcher):
+
+ def __init__(self, **kwargs):
+ self.register_event_type('on_quotes')
+ self.register_event_type('on_history')
+ super(MyEventDispatcher, self).__init__(**kwargs)
+
+ def on_quotes(self, *args):
+ pass
+
+ def on_history(self, *args):
+ pass
+
+
class Plugin(FxPlugin):
+ def __init__(self, parent, config, name):
+ FxPlugin.__init__(self, parent, config, name)
+ self.dispatcher = MyEventDispatcher()
+
def on_quotes(self):
- self.print_error("on quotes", self.ccy)
+ self.print_error("on_quotes")
+ self.dispatcher.dispatch('on_quotes')
def on_history(self):
- self.print_error("on history")
- self.window.history_screen.update()
+ self.print_error("on_history")
+ self.dispatcher.dispatch('on_history')
def on_close(self):
self.print_error("on close")
t@@ -17,9 +41,12 @@ class Plugin(FxPlugin):
@hook
def init_kivy(self, window):
+ self.print_error("init_kivy")
self.window = window
+ self.dispatcher.bind(on_quotes=window.on_quotes)
+ self.dispatcher.bind(on_history=window.on_history)
self.window.fiat_unit = self.ccy
- self.window.history_screen.update()
+ self.dispatcher.dispatch('on_history')
@hook
def load_wallet(self, wallet, window):