parent
3375619396
commit
6e5b6a3bdb
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@ -39,11 +39,14 @@ const isPullEnd = ref(false);
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const isRefreshing = ref(false);
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const pullDistance = ref(0);
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let supportPointerDesktop = false;
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let startScreenY: number | null = null;
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const rootEl = useTemplateRef('rootEl');
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let scrollEl: HTMLElement | null = null;
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let disabled = false;
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const props = withDefaults(defineProps<{
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refresher: () => Promise<void>;
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}>(), {
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@ -54,17 +57,17 @@ const emit = defineEmits<{
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(ev: 'refresh'): void;
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}>();
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function moveStart(event: PointerEvent) {
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if (scrollEl!.scrollTop !== 0) return;
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function getScreenY(event) {
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if (supportPointerDesktop) {
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return event.screenY;
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}
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return event.touches[0].screenY;
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}
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window.addEventListener('pointermove', moving, { passive: false }); // passive: falseにしないとpreventDefaultが使えない
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// setPointerCaptureするとクリックが効かなくなる
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//rootEl.value.setPointerCapture(event.pointerId);
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window.addEventListener('pointerup', moveEnd, { passive: true, once: true });
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if (!isPullStart.value && !isRefreshing.value) {
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function moveStart(event) {
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if (!isPullStart.value && !isRefreshing.value && !disabled) {
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isPullStart.value = true;
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startScreenY = event.screenY;
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startScreenY = getScreenY(event);
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pullDistance.value = 0;
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}
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}
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@ -105,39 +108,7 @@ async function closeContent() {
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}
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}
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function moving(event: PointerEvent) {
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if (!isPullStart.value || isRefreshing.value) return;
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if ((scrollEl?.scrollTop ?? 0) > SCROLL_STOP + pullDistance.value || isHorizontalSwipeSwiping.value) {
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pullDistance.value = 0;
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isPullEnd.value = false;
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moveEnd(event);
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return;
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}
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if (startScreenY === null) {
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startScreenY = event.screenY;
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}
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const moveScreenY = event.screenY;
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const moveHeight = moveScreenY - startScreenY!;
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pullDistance.value = Math.min(Math.max(moveHeight, 0), MAX_PULL_DISTANCE);
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if (pullDistance.value > 0) {
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if (event.cancelable) event.preventDefault();
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}
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if (pullDistance.value > SCROLL_STOP) {
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event.stopPropagation();
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}
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isPullEnd.value = pullDistance.value >= FIRE_THRESHOLD;
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}
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function moveEnd(event: PointerEvent) {
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window.removeEventListener('pointermove', moving);
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//rootEl.value.releasePointerCapture(event.pointerId);
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function moveEnd() {
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if (isPullStart.value && !isRefreshing.value) {
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startScreenY = null;
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if (isPullEnd.value) {
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@ -155,6 +126,35 @@ function moveEnd(event: PointerEvent) {
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}
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}
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function moving(event: TouchEvent | PointerEvent) {
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if (!isPullStart.value || isRefreshing.value || disabled) return;
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if ((scrollEl?.scrollTop ?? 0) > (supportPointerDesktop ? SCROLL_STOP : SCROLL_STOP + pullDistance.value) || isHorizontalSwipeSwiping.value) {
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pullDistance.value = 0;
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isPullEnd.value = false;
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moveEnd();
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return;
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}
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if (startScreenY === null) {
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startScreenY = getScreenY(event);
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}
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const moveScreenY = getScreenY(event);
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const moveHeight = moveScreenY - startScreenY!;
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pullDistance.value = Math.min(Math.max(moveHeight, 0), MAX_PULL_DISTANCE);
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if (pullDistance.value > 0) {
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if (event.cancelable) event.preventDefault();
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}
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if (pullDistance.value > SCROLL_STOP) {
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event.stopPropagation();
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}
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isPullEnd.value = pullDistance.value >= FIRE_THRESHOLD;
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}
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/**
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* emit(refresh)が完了したことを知らせる関数
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*
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@ -167,17 +167,35 @@ function refreshFinished() {
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});
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}
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function setDisabled(value) {
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disabled = value;
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}
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function onScrollContainerScroll() {
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const scrollPos = scrollEl!.scrollTop;
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// When at the top of the page, disable vertical overscroll so passive touch listeners can take over.
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if (scrollPos === 0) {
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scrollEl!.style.touchAction = 'pan-x pan-down pinch-zoom';
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registerEventListenersForReadyToPull();
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} else {
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scrollEl!.style.touchAction = 'auto';
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unregisterEventListenersForReadyToPull();
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}
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}
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function registerEventListenersForReadyToPull() {
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if (rootEl.value == null) return;
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rootEl.value.addEventListener('touchstart', moveStart, { passive: true });
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rootEl.value.addEventListener('touchmove', moving, { passive: false }); // passive: falseにしないとpreventDefaultが使えない
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}
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function unregisterEventListenersForReadyToPull() {
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if (rootEl.value == null) return;
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rootEl.value.removeEventListener('touchstart', moveStart);
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rootEl.value.removeEventListener('touchmove', moving);
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}
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onMounted(() => {
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if (rootEl.value == null) return;
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@ -186,11 +204,19 @@ onMounted(() => {
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scrollEl.addEventListener('scroll', onScrollContainerScroll, { passive: true });
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rootEl.value.addEventListener('pointerdown', moveStart, { passive: true });
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rootEl.value.addEventListener('touchend', moveEnd, { passive: true });
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registerEventListenersForReadyToPull();
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});
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onUnmounted(() => {
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if (scrollEl) scrollEl.removeEventListener('scroll', onScrollContainerScroll);
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unregisterEventListenersForReadyToPull();
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});
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defineExpose({
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setDisabled,
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});
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</script>
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