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fix(frontend): 横スワイプの挙動改善 (#15952)

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かっこかり 2025-05-05 14:28:54 +09:00 committed by GitHub
parent 6bbda4d67c
commit 57a1ac3dd0
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GPG Key ID: B5690EEEBB952194
1 changed files with 20 additions and 7 deletions
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27
packages/frontend/src/components/MkSwiper.vue
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@ -53,12 +53,12 @@ const MIN_SWIPE_DISTANCE = 20;
// スワイプ時の動作を発火する最小の距離
const SWIPE_DISTANCE_THRESHOLD = 70;
// スワイプを中断するY方向の移動距離
const SWIPE_ABORT_Y_THRESHOLD = 75;
// スワイプできる最大の距離
const MAX_SWIPE_DISTANCE = 120;
// スワイプ方向を判定する角度の許容範囲（度数）
const SWIPE_DIRECTION_ANGLE_THRESHOLD = 50;
// ▲ しきい値 ▲ //
let startScreenX: number | null = null;
@ -69,6 +69,7 @@ const currentTabIndex = computed(() => props.tabs.findIndex(tab => tab.key === t
const pullDistance = ref(0);
const isSwipingForClass = ref(false);
let swipeAborted = false;
let swipeDirectionLocked: 'horizontal' | 'vertical' | null = null;
function touchStart(event: TouchEvent) {
if (!prefer.r.enableHorizontalSwipe.value) return;
@ -79,6 +80,7 @@ function touchStart(event: TouchEvent) {
startScreenX = event.touches[0].screenX;
startScreenY = event.touches[0].screenY;
swipeDirectionLocked = null; // スワイプ方向をリセット
}
function touchMove(event: TouchEvent) {
@ -95,15 +97,24 @@ function touchMove(event: TouchEvent) {
let distanceX = event.touches[0].screenX - startScreenX;
let distanceY = event.touches[0].screenY - startScreenY;
if (Math.abs(distanceY) > SWIPE_ABORT_Y_THRESHOLD) {
swipeAborted = true;
// スワイプ方向をロック
if (!swipeDirectionLocked) {
const angle = Math.abs(Math.atan2(distanceY, distanceX) * (180 / Math.PI));
if (angle > 90 - SWIPE_DIRECTION_ANGLE_THRESHOLD && angle < 90 + SWIPE_DIRECTION_ANGLE_THRESHOLD) {
swipeDirectionLocked = 'vertical';
} else {
swipeDirectionLocked = 'horizontal';
}
}
// 縦方向のスワイプの場合は中断
if (swipeDirectionLocked === 'vertical') {
swipeAborted = true;
pullDistance.value = 0;
isSwiping.value = false;
window.setTimeout(() => {
isSwipingForClass.value = false;
}, 400);
return;
}
@ -164,6 +175,8 @@ function touchEnd(event: TouchEvent) {
window.setTimeout(() => {
isSwipingForClass.value = false;
}, 400);
swipeDirectionLocked = null; // スワイプ方向をリセット
}
/** 横スワイプに関与する可能性のある要素を調べる */
@ -190,7 +203,7 @@ watch(tabModel, (newTab, oldTab) => {
const newIndex = props.tabs.findIndex(tab => tab.key === newTab);
const oldIndex = props.tabs.findIndex(tab => tab.key === oldTab);
if (oldIndex >= 0 && newIndex && oldIndex < newIndex) {
if (oldIndex >= 0 && newIndex >= 0 && oldIndex < newIndex) {
transitionName.value = 'swipeAnimationLeft';
} else {
transitionName.value = 'swipeAnimationRight';