Added dynamic instantiation of machines in composite

This commit is contained in:
Samuel Andert
2023-08-03 12:25:55 +02:00
parent f4ad80fde9
commit 3aa211a35d
6 changed files with 97 additions and 54 deletions

View File

@ -1,7 +1,6 @@
<script>
import { Machine, interpret } from 'xstate';
export let services;
export let store;
let childStore;
@ -9,44 +8,18 @@
childStore = services.core.subscribeComposite('@child');
}
const colorMachine = Machine({
id: 'color',
initial: 'RED',
states: {
GREEN: {
on: { SWITCH: 'YELLOW' }
},
YELLOW: {
on: { SWITCH: 'RED' }
},
RED: {
on: { SWITCH: 'GREEN' }
}
},
on: {
READY: 'GREEN',
NOTREADY: 'RED'
}
});
let current = colorMachine.initialState.value;
const service = interpret(colorMachine)
.onTransition((state) => {
current = state.value;
})
.start();
$: {
if ($childStore && $childStore.xstate) {
service.send($childStore.xstate);
if ($childStore && $childStore.machine.state) {
services.machine.send($childStore.machine.state);
}
}
</script>
<div class="p-2 border-2 border-blue-500">I am the parent, this is my state: {current}</div>
<div class="p-2 border-2 border-blue-500">
I am the parent, this is my state: {$store.machine.state}
</div>
<div
class="p-2 border-2"
style="background-color: {current}; border-radius: 50%; width: 50px; height: 50px;"
style="background-color: {$store.machine.state}; border-radius: 50%; width: 50px; height: 50px;"
/>
<p>The child state: {JSON.stringify($childStore)}</p>

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@ -11,10 +11,9 @@
$: if (machine) {
compositeMachine = Machine(machine);
current = compositeMachine.initialState.value; // remove let
current = compositeMachine.initialState.value;
service = interpret(compositeMachine).onTransition((state) => {
current = state.value;
$store.xstate = state.value;
$store.machine.state = state.value;
});
service.start();
@ -22,9 +21,7 @@
</script>
<div class="border-2 border-yellow-500">
{#if machine}
i am the child and this is my state: {current}
{/if}
i am the child and this is my state: {$store.machine.state}
<button
class="px-4 py-2 font-bold text-white bg-blue-500 rounded hover:bg-blue-700"
on:click={() => service.send('TOGGLE')}>Switch</button

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@ -0,0 +1,14 @@
import { Machine } from 'xstate';
export const toggleMachine = Machine({
id: 'toggleMachine',
initial: 'NOTREADY',
states: {
NOTREADY: {
on: { TOGGLE: 'READY' }
},
READY: {
on: { TOGGLE: 'NOTREADY' }
}
}
});

View File

@ -19,7 +19,7 @@
component: 'LearnReady',
slot: 'left',
store: {
xstate: 'NOTREADY'
machine: { state: 'NOTREADY' }
},
machine: {
id: 'compositemachine',
@ -35,9 +35,28 @@
}
},
{
id: 'parent',
id: 'learncolor',
component: 'LearnColor',
slot: 'right'
slot: 'right',
machine: {
id: 'color',
initial: 'RED',
states: {
GREEN: {
on: { SWITCH: 'YELLOW' }
},
YELLOW: {
on: { SWITCH: 'RED' }
},
RED: {
on: { SWITCH: 'GREEN' }
}
},
on: {
READY: 'GREEN',
NOTREADY: 'RED'
}
}
}
]
};