misskey/src/client/components/form/suspense.vue

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Vue
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<template>
<div class="_formItem" v-if="pending">
<div class="_formPanel">
pending
</div>
</div>
<slot v-else-if="resolved" :result="result"></slot>
<div class="_formItem" v-else>
<div class="_formPanel">
error!
<button @click="retry">retry</button>
</div>
</div>
</template>
<script lang="ts">
import { defineComponent, PropType, ref, watch } from 'vue';
import './form.scss';
export default defineComponent({
props: {
p: {
type: Function as PropType<() => Promise<any>>,
required: true,
}
},
setup(props, context) {
const pending = ref(true);
const resolved = ref(false);
const rejected = ref(false);
const result = ref(null);
const process = () => {
if (props.p == null) {
return;
}
const promise = props.p();
pending.value = true;
resolved.value = false;
rejected.value = false;
promise.then((_result) => {
pending.value = false;
resolved.value = true;
result.value = _result;
});
promise.catch(() => {
pending.value = false;
rejected.value = true;
});
};
watch(() => props.p, () => {
process();
}, {
immediate: true
});
const retry = () => {
process();
};
return {
pending,
resolved,
rejected,
result,
retry,
};
}
});
</script>
<style lang="scss" scoped>
</style>