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98 lines
2.4 KiB
98 lines
2.4 KiB
import type { Ref } from 'vue';
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import { onBeforeUnmount, shallowRef, watch, onMounted } from 'vue';
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import raf from '../../_util/raf';
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/**
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* Popup should follow the steps for each component work correctly:
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* measure - check for the value stretch size
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* align - let component align the position
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* aligned - re-align again in case additional className changed the size
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* afterAlign - choice next step is trigger motion or finished
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* beforeMotion - should reset motion to invisible so that CSSMotion can do normal motion
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* motion - play the motion
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* stable - everything is done
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*/
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type PopupStatus = null | 'measure' | 'align' | 'aligned' | 'motion' | 'stable';
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type Func = () => void;
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const StatusQueue: PopupStatus[] = ['measure', 'align', null, 'motion'];
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export default (
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visible: Ref<boolean>,
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doMeasure: Func,
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): [Ref<PopupStatus>, (callback?: () => void) => void] => {
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const status = shallowRef<PopupStatus>(null);
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const rafRef = shallowRef<number>();
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const destroyRef = shallowRef(false);
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function setStatus(nextStatus: PopupStatus) {
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if (!destroyRef.value) {
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status.value = nextStatus;
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}
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}
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function cancelRaf() {
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raf.cancel(rafRef.value);
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}
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function goNextStatus(callback?: () => void) {
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cancelRaf();
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rafRef.value = raf(() => {
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// Only align should be manually trigger
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let newStatus = status.value;
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switch (status.value) {
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case 'align':
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newStatus = 'motion';
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break;
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case 'motion':
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newStatus = 'stable';
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break;
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default:
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}
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setStatus(newStatus);
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callback?.();
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});
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}
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watch(
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visible,
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() => {
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setStatus('measure');
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},
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{ immediate: true, flush: 'post' },
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);
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onMounted(() => {
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// Go next status
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watch(
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status,
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() => {
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switch (status.value) {
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case 'measure':
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doMeasure();
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break;
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default:
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}
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if (status.value) {
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rafRef.value = raf(async () => {
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const index = StatusQueue.indexOf(status.value);
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const nextStatus = StatusQueue[index + 1];
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if (nextStatus && index !== -1) {
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setStatus(nextStatus);
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}
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});
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}
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},
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{ immediate: true, flush: 'post' },
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);
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});
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onBeforeUnmount(() => {
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destroyRef.value = true;
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cancelRaf();
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});
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return [status, goNextStatus];
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};
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