def show_channels_dialog(self):
"""
Show the channels dialog.
"""
button_channels = self.button_channels
self.dlg = DialogChannels(self,
channels=self._channels,
active_channels=self._active_channels,
conda_url=self.conda_url)
self.dlg.update_style_sheet(style_sheet=self.style_sheet)
button_channels.setDisabled(True)
self.dlg.sig_channels_updated.connect(self.update_channels)
self.dlg.rejected.connect(lambda: button_channels.setEnabled(True))
self.dlg.rejected.connect(button_channels.toggle)
self.dlg.rejected.connect(button_channels.setFocus)
self.dlg.accepted.connect(self.accept_channels_dialog)
geo_tl = button_channels.geometry().topLeft()
tl = button_channels.parentWidget().mapToGlobal(geo_tl)
x = tl.x() + 2
y = tl.y() + button_channels.height()
self.dlg.move(x, y)
self.dlg.show()
self.dlg.button_add.setFocus()
