Background: I have several states that need to call the same external substate
machine. Once the substate machine has finished I need it to return to the
calling state.
Question: How can I get the substate machine to return to the calling state
without explicitly naming the calling state in the transition?
I have found bits and pieces in the archives and online but no good examples or
full explanations.
Any pointers to online documentation for this would also be helpful. Thanks.
Code:
I would like to return from the password.xml substate to the calling state
(SaveButton, ReloadButton, etc). The tag <transition event="e_Done"
target="* Back to Calling State* " /> specifies a specific state However, that
state depends on the calling state. How do I get it to return to the calling
state automatically?
<state id="SaveButton" src="Password.xml" >
<transition event="e_Done" target="SteadyState" />
</state>
<state id="ReloadButton" src="Password.xml" >
<transition event="e_Done" target="SteadyState" />
</state>
Password.xml
<scxml xmlns="http://www.w3.org/2005/07/scxml";
xmlns:my="http://www.ttt.com"; version="1.0" initialstate="PasswordCheck">
<state id="PasswordCheck" >
<onentry>
<my:StateLog/>
<my:PasswordCheck/>
</onentry>
<transition event="e_Done" target="SteadyState" />
<transition event="e_validate" target="PasswordValid" />
<transition event="e_allow" target="ControlGranted" />
</state>
<state id="PasswordValid" >
<onentry>
<my:StateLog/>
<my:PasswordValid/>
</onentry>
<transition event="e_allow" target="ControlGranted" />
<transition event="e_Done" target=" SteadyState " />
</state>
<state id="ControlGranted" >
<onentry>
<my:StateLog/>
<my:ControlGranted/>
</onentry>
<transition event="e_Done" target="* Back to Calling State* " />
</state>
</scxml>
--
Landon Ouyang
Senior Design Engineer
ITT Electronics Systems, Radar Systems - Gilfillan
7821 Orion Ave,
Van Nuys, CA 91406
(818) 901-2982
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