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@@ -5,12 +5,12 @@ SPDX-License-Identifier: AGPL-3.0-only
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<template>
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<div ref="rootEl">
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<div v-if="isPullStart" :class="$style.frame" :style="`--frame-min-height: ${pullDistance / (PULL_BRAKE_BASE + (pullDistance / PULL_BRAKE_FACTOR))}px;`">
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<div v-if="isPulling" :class="$style.frame" :style="`--frame-min-height: ${pullDistance / (PULL_BRAKE_BASE + (pullDistance / PULL_BRAKE_FACTOR))}px;`">
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<div :class="$style.frameContent">
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<MkLoading v-if="isRefreshing" :class="$style.loader" :em="true"/>
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<i v-else class="ti ti-arrow-bar-to-down" :class="[$style.icon, { [$style.refresh]: isPullEnd }]"></i>
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<i v-else class="ti ti-arrow-bar-to-down" :class="[$style.icon, { [$style.refresh]: isPulledEnough }]"></i>
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<div :class="$style.text">
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<template v-if="isPullEnd">{{ i18n.ts.releaseToRefresh }}</template>
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<template v-if="isPulledEnough">{{ i18n.ts.releaseToRefresh }}</template>
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<template v-else-if="isRefreshing">{{ i18n.ts.refreshing }}</template>
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<template v-else>{{ i18n.ts.pullDownToRefresh }}</template>
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</div>
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@@ -34,19 +34,16 @@ const RELEASE_TRANSITION_DURATION = 200;
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const PULL_BRAKE_BASE = 1.5;
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const PULL_BRAKE_FACTOR = 170;
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const isPullStart = ref(false);
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const isPullEnd = ref(false);
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const isPulling = ref(false);
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const isPulledEnough = 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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@@ -57,18 +54,51 @@ const emit = defineEmits<{
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(ev: 'refresh'): void;
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}>();
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function getScreenY(event) {
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if (supportPointerDesktop) {
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function getScreenY(event: TouchEvent | MouseEvent | PointerEvent): number {
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if (event.touches && event.touches[0] && event.touches[0].screenY != null) {
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return event.touches[0].screenY;
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} else {
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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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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 = getScreenY(event);
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pullDistance.value = 0;
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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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function lockDownScroll() {
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scrollEl!.style.touchAction = 'pan-x pan-down pinch-zoom';
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scrollEl!.style.overscrollBehavior = 'none';
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}
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function unlockDownScroll() {
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scrollEl!.style.touchAction = 'auto';
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scrollEl!.style.overscrollBehavior = 'contain';
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}
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function moveStart(event: PointerEvent) {
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const scrollPos = scrollEl!.scrollTop;
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if (scrollPos === 0) {
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lockDownScroll();
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if (!isPulling.value && !isRefreshing.value) {
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isPulling.value = true;
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startScreenY = getScreenY(event);
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pullDistance.value = 0;
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// タッチデバイスでPointerEventを使うとなんか挙動がおかしいので、TouchEventとMouseEventを使い分ける
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if (event.pointerType === 'mouse') {
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window.addEventListener('mousemove', moving, { passive: true });
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window.addEventListener('mouseup', () => {
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window.removeEventListener('mousemove', moving);
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onPullRelease();
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}, { passive: true, once: true });
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} else {
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window.addEventListener('touchmove', moving, { passive: true });
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window.addEventListener('touchend', () => {
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window.removeEventListener('touchmove', moving);
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onPullRelease();
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}, { passive: true, once: true });
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}
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}
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} else {
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unlockDownScroll();
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}
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}
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@@ -108,31 +138,39 @@ async function closeContent() {
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}
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}
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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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isPullEnd.value = false;
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isRefreshing.value = true;
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fixOverContent().then(() => {
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emit('refresh');
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props.refresher().then(() => {
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refreshFinished();
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});
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function onPullRelease() {
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window.document.body.removeAttribute('inert');
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startScreenY = null;
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if (isPulledEnough.value) {
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isPulledEnough.value = false;
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isRefreshing.value = true;
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fixOverContent().then(() => {
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emit('refresh');
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props.refresher().then(() => {
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refreshFinished();
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});
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} else {
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closeContent().then(() => isPullStart.value = false);
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}
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});
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} else {
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closeContent().then(() => isPulling.value = false);
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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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function toggleScrollLockOnTouchEnd() {
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const scrollPos = scrollEl!.scrollTop;
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if (scrollPos === 0) {
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lockDownScroll();
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} else {
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unlockDownScroll();
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}
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}
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if ((scrollEl?.scrollTop ?? 0) > (supportPointerDesktop ? SCROLL_STOP : SCROLL_STOP + pullDistance.value) || isHorizontalSwipeSwiping.value) {
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function moving(event: MouseEvent | TouchEvent) {
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if (!isPulling.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();
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isPulledEnough.value = false;
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onPullRelease();
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return;
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}
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@@ -144,15 +182,12 @@ function moving(event: TouchEvent | PointerEvent) {
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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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// マウスでのpull時、画面上のテキスト選択が発生して画面がスクロールされたりするのを防ぐ
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if (pullDistance.value > 3) { // ある程度遊びを持たせないと通常のクリックでも発火しクリックできなくなる
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window.document.body.setAttribute('inert', 'true');
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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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isPulledEnough.value = pullDistance.value >= FIRE_THRESHOLD;
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}
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/**
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@@ -162,61 +197,23 @@ function moving(event: TouchEvent | PointerEvent) {
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*/
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function refreshFinished() {
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closeContent().then(() => {
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isPullStart.value = false;
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isPulling.value = false;
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isRefreshing.value = false;
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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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scrollEl = getScrollContainer(rootEl.value);
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if (scrollEl == null) return;
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scrollEl.addEventListener('scroll', onScrollContainerScroll, { passive: true });
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rootEl.value.addEventListener('touchend', moveEnd, { passive: true });
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registerEventListenersForReadyToPull();
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rootEl.value.addEventListener('pointerdown', moveStart, { passive: true });
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rootEl.value.addEventListener('touchend', toggleScrollLockOnTouchEnd, { passive: true });
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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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rootEl.value.removeEventListener('pointerdown', moveStart);
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rootEl.value.removeEventListener('touchend', toggleScrollLockOnTouchEnd);
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});
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</script>
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