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[core] Update only affected widgets on input event

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When receiving an input event, only update affected widgets, identified by
their instance ID.

see #353
This commit is contained in:
Tobias Witek 2019-01-19 14:07:17 +01:00
parent 44a50c0b36
commit 3d9279c444
4 changed files with 49 additions and 5 deletions
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24
bumblebee/engine.py
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@ -71,7 +71,7 @@ class Module(object):
return widget
def errorWidget(self):
msg = self.error
msg = self.error or "n/a"
if len(msg) > 10:
msg = "{}...".format(msg[0:7])
return bumblebee.output.Widget(full_text="error: {}".format(msg))
@ -264,14 +264,32 @@ class Engine(object):
def run(self):
"""Start the event loop"""
self._output.start()
event = None
while self.running():
self.write_output()
if event:
self.patch_output(event)
else:
self.write_output()
if self.running():
self.input.wait(float(self._config.get("interval", 1)))
event = self.input.wait(float(self._config.get("interval", 1)))
self._output.stop()
self.input.stop()
def patch_output(self, event):
for module in self._modules:
widget = module.widget_by_id(event["instance"])
if not widget: continue
# this widget was affected by the event -> update
module.update_wrapper(module.widgets())
widget = module.errorWidget()
if module.error is None:
widget = module.widget_by_id(event["instance"])
widget.link_module(module)
self._output.replace(event, module, widget)
self._output.flush()
self._output.end()
def write_output(self):
self._output.begin()
for module in self._modules: