1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { ref, watch, onUnmounted } from 'vue';
import type { Ref } from 'vue';
export function useTooltip(
elRef: Ref<HTMLElement | { $el: HTMLElement } | null | undefined>,
onShow: (showing: Ref<boolean>) => void,
delay = 300,
): void {
let isHovering = false;
// iOS(Androidも？)では、要素をタップした直後に(おせっかいで)mouseoverイベントを発火させたりするため、それを無視するためのフラグ
// 無視しないと、画面に触れてないのにツールチップが出たりし、ユーザビリティが損なわれる
// TODO: 一度でもタップすると二度とマウスでツールチップ出せなくなるのをどうにかする 定期的にfalseに戻すとか...？
let shouldIgnoreMouseover = false;
let timeoutId: number;
let changeShowingState: (() => void) | null;
let autoHidingTimer;
const open = () => {
close();
if (!isHovering) return;
if (elRef.value == null) return;
const el = elRef.value instanceof Element ? elRef.value : elRef.value.$el;
if (!window.document.body.contains(el)) return; // openしようとしたときに既に元要素がDOMから消えている場合があるため
const showing = ref(true);
onShow(showing);
changeShowingState = () => {
showing.value = false;
};
autoHidingTimer = window.setInterval(() => {
if (elRef.value == null || !window.document.body.contains(elRef.value instanceof Element ? elRef.value : elRef.value.$el)) {
if (!isHovering) return;
isHovering = false;
window.clearTimeout(timeoutId);
close();
window.clearInterval(autoHidingTimer);
}
}, 1000);
};
const close = () => {
if (changeShowingState != null) {
changeShowingState();
changeShowingState = null;
}
};
const onMouseover = () => {
if (isHovering) return;
if (shouldIgnoreMouseover) return;
isHovering = true;
timeoutId = window.setTimeout(open, delay);
};
const onMouseleave = () => {
if (!isHovering) return;
isHovering = false;
window.clearTimeout(timeoutId);
window.clearInterval(autoHidingTimer);
close();
};
const onTouchstart = () => {
shouldIgnoreMouseover = true;
if (isHovering) return;
isHovering = true;
timeoutId = window.setTimeout(open, delay);
};
const onTouchend = () => {
if (!isHovering) return;
isHovering = false;
window.clearTimeout(timeoutId);
window.clearInterval(autoHidingTimer);
close();
};
const stop = watch(elRef, () => {
if (elRef.value) {
stop();
const el = elRef.value instanceof Element ? elRef.value : elRef.value.$el;
el.addEventListener('mouseover', onMouseover, { passive: true });
el.addEventListener('mouseleave', onMouseleave, { passive: true });
el.addEventListener('touchstart', onTouchstart, { passive: true });
el.addEventListener('touchend', onTouchend, { passive: true });
el.addEventListener('click', close, { passive: true });
}
}, {
immediate: true,
flush: 'post',
});
onUnmounted(() => {
close();
});
}
|
