Mercurial > libervia-backend

changeset 2840:0f277708e2ae

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bridge (pb): added bridgeDeactivateSignals and bridgeReactivateSignals methods: those methods stop and restart signals propagation, they are used on mobile OS when the frontend is paused.
author Goffi <goffi@goffi.org>
date Sat, 09 Mar 2019 16:23:00 +0100
parents 76f714b12d21
children 90115cf4e731
files sat/bridge/bridge_constructor/constructors/pb/pb_core_template.py sat/bridge/pb.py
diffstat 2 files changed, 62 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/sat/bridge/bridge_constructor/constructors/pb/pb_core_template.py	Sun Mar 03 20:59:29 2019 +0100
+++ b/sat/bridge/bridge_constructor/constructors/pb/pb_core_template.py	Sat Mar 09 16:23:00 2019 +0100
@@ -69,6 +69,24 @@
                 log.debug(u"Removing signal handler for dead frontend")
                 self.signals_handlers.remove(handler)
 
+    def _bridgeDeactivateSignals(self):
+        if hasattr(self, "signals_paused"):
+            log.warning(u"bridge signals already deactivated")
+            if self.signals_handler:
+                self.signals_paused.extend(self.signals_handler)
+        else:
+            self.signals_paused = self.signals_handlers
+        self.signals_handlers = []
+        log.debug(u"bridge signals have been deactivated")
+
+    def _bridgeReactivateSignals(self):
+        try:
+            self.signals_handlers = self.signals_paused
+        except AttributeError:
+            log.debug(u"signals were already activated")
+        else:
+            del self.signals_paused
+            log.debug(u"bridge signals have been reactivated")
 
 ##METHODS_PART##
 
@@ -103,5 +121,18 @@
             self, name, lambda *args, **kwargs: self.sendSignal(name, *args, **kwargs)
         )
 
+    def bridgeDeactivateSignals(self):
+        """Stop sending signals to bridge
+
+        Mainly used for mobile frontends, when the frontend is paused
+        """
+        self.root._bridgeDeactivateSignals()
+
+    def bridgeReactivateSignals(self):
+        """Send again signals to bridge
+
+        Should only be used after bridgeDeactivateSignals has been called
+        """
+        self.root._bridgeReactivateSignals()
 
 ##SIGNALS_PART##
--- a/sat/bridge/pb.py	Sun Mar 03 20:59:29 2019 +0100
+++ b/sat/bridge/pb.py	Sat Mar 09 16:23:00 2019 +0100
@@ -69,6 +69,24 @@
                 log.debug(u"Removing signal handler for dead frontend")
                 self.signals_handlers.remove(handler)
 
+    def _bridgeDeactivateSignals(self):
+        if hasattr(self, "signals_paused"):
+            log.warning(u"bridge signals already deactivated")
+            if self.signals_handler:
+                self.signals_paused.extend(self.signals_handler)
+        else:
+            self.signals_paused = self.signals_handlers
+        self.signals_handlers = []
+        log.debug(u"bridge signals have been deactivated")
+
+    def _bridgeReactivateSignals(self):
+        try:
+            self.signals_handlers = self.signals_paused
+        except AttributeError:
+            log.debug(u"signals were already activated")
+        else:
+            del self.signals_paused
+            log.debug(u"bridge signals have been reactivated")
 
 ##METHODS_PART##
 
@@ -103,6 +121,19 @@
             self, name, lambda *args, **kwargs: self.sendSignal(name, *args, **kwargs)
         )
 
+    def bridgeDeactivateSignals(self):
+        """Stop sending signals to bridge
+
+        Mainly used for mobile frontends, when the frontend is paused
+        """
+        self.root._bridgeDeactivateSignals()
+
+    def bridgeReactivateSignals(self):
+        """Send again signals to bridge
+
+        Should only be used after bridgeDeactivateSignals has been called
+        """
+        self.root._bridgeReactivateSignals()
 
     def actionNew(self, action_data, id, security_limit, profile):
         self.sendSignal("actionNew", action_data, id, security_limit, profile)