use-tabs-drag.ts
3.27 KB
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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
import type { Sortable } from '@vben-core/composables';
import type { EmitType } from '@vben-core/typings';
import type { TabsProps } from './types';
import { nextTick, onMounted, onUnmounted, ref, watch } from 'vue';
import { useIsMobile, useSortable } from '@vben-core/composables';
// 可能会找到拖拽的子元素，这里需要确保拖拽的dom时tab元素
function findParentElement(element: HTMLElement) {
const parentCls = 'group';
return element.classList.contains(parentCls)
? element
: element.closest(`.${parentCls}`);
}
export function useTabsDrag(props: TabsProps, emit: EmitType) {
const sortableInstance = ref<null | Sortable>(null);
async function initTabsSortable() {
await nextTick();
const el = document.querySelectorAll(
`.${props.contentClass}`,
)?.[0] as HTMLElement;
if (!el) {
console.warn('Element not found for sortable initialization');
return;
}
const resetElState = async () => {
el.style.cursor = 'default';
// el.classList.remove('dragging');
el.querySelector('.draggable')?.classList.remove('dragging');
};
const { initializeSortable } = useSortable(el, {
filter: (_evt, target: HTMLElement) => {
const parent = findParentElement(target);
const draggable = parent?.classList.contains('draggable');
return !draggable || !props.draggable;
},
onEnd(evt) {
const { newIndex, oldIndex } = evt;
// const fromElement = evt.item;
const { srcElement } = (evt as any).originalEvent;
if (!srcElement) {
resetElState();
return;
}
const srcParent = findParentElement(srcElement);
if (!srcParent) {
resetElState();
return;
}
if (!srcParent.classList.contains('draggable')) {
resetElState();
return;
}
if (
oldIndex !== undefined &&
newIndex !== undefined &&
!Number.isNaN(oldIndex) &&
!Number.isNaN(newIndex) &&
oldIndex !== newIndex
) {
emit('sortTabs', oldIndex, newIndex);
}
resetElState();
},
onMove(evt) {
const parent = findParentElement(evt.related);
if (parent?.classList.contains('draggable') && props.draggable) {
const isCurrentAffix = evt.dragged.classList.contains('affix-tab');
const isRelatedAffix = evt.related.classList.contains('affix-tab');
// 不允许在固定的tab和非固定的tab之间互相拖拽
return isCurrentAffix === isRelatedAffix;
} else {
return false;
}
},
onStart: () => {
el.style.cursor = 'grabbing';
el.querySelector('.draggable')?.classList.add('dragging');
// el.classList.add('dragging');
},
});
sortableInstance.value = await initializeSortable();
}
async function init() {
const { isMobile } = useIsMobile();
// 移动端下tab不需要拖拽
if (isMobile.value) {
return;
}
await nextTick();
initTabsSortable();
}
onMounted(init);
watch(
() => props.styleType,
() => {
sortableInstance.value?.destroy();
init();
},
);
onUnmounted(() => {
sortableInstance.value?.destroy();
});
}