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<scxml datamodel="ecmascript" name="sample-mc">
<!--
This is a sample implementation for a modality component in the W3C MMI Architecture using SCXML.
We enter an idle state and wait for StartRequests from an IM.
-->
<state id="idle">
<onentry>
<log expr="'Entering idle state'" />
</onentry>
<transition event="mmi.prepare.request" target="idle">
<log expr="'Received PrepareRequest'" />
<send type="mmihttp">
<mmi:PrepareResponse
mmi:SourceExpr="_ioprocessors['mmihttp'].location"
mmi:TargetExpr="_event.data.getElementsByTagName('PrepareRequest')[0].getAttribute('Source')"
mmi:ContextExpr="_event.data.getElementsByTagName('PrepareRequest')[0].getAttribute('Context')"
mmi:RequestIDExpr="_event.data.getElementsByTagName('PrepareRequest')[0].getAttribute('RequestID')"
mmi:Status="success"/>
</transition>
<transition event="mmi.start.request" target="running">
<log expr="'Received StartRequest'" />
</transition>
<transition event="mmi.clearcontext.request" target="terminate">
<log expr="'Received ClearContextRequest'" />
</transition>
</state>
<state id="paused">
<onentry>
<log expr="'Entering pause state'">
</onentry>
<transition event="mmi.prepare.request" target="paused">
<log expr="'Received PrepareRequest'" />
</transition>
<transition event="mmi.start.request" target="running">
<log expr="'Received StartRequest'" />
</transition>
<transition event="mmi.resume.request" target="running">
<log expr="'Received ResumeRequest'" />
</transition>
<transition event="mmi.cancel.request" target="idle">
<log expr="'Received CancelRequest'" />
</transition>
<transition event="mmi.clearcontext.request" target="terminate">
<log expr="'Received ClearContextRequest'" />
</transition>
</state>
<state id="running">
<onentry>
<log expr="'Entering running state'">
</onentry>
<transition event="mmi.prepare.request" target="running">
<log expr="'Received PrepareRequest'" />
</transition>
<transition event="mmi.pause.request" target="paused">
<log expr="'Received PauseRequest'" />
</transition>
<transition event="mmi.cancel.request" target="idle">
<log expr="'Received CancelRequest'" />
</transition>
<transition event="mmi.clearcontext.request" target="terminate">
<log expr="'Received ClearContextRequest'" />
</transition>
</state>
<final id="terminate">
<onentry>
<log expr="'Entering terminate state'">
</onentry>
</final>
</scxml>
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