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
|
<template>
<div class="tabs cw-tabs">
<div class="tab-buttons cw-tabs-nav">
<button
v-for="(tab, index) in tabs"
:key="index"
:data-index="index"
:class="[
activeTab === index ? 'is-active' : '',
tab.icon !== '' && tab.name !== '' ? 'cw-tabs-nav-icon-text-' + tab.icon : '',
tab.icon !== '' && tab.name === '' ? 'cw-tabs-nav-icon-solo-' + tab.icon : '',
]"
:tabindex="activeTab === index ? 0 : -1"
:aria-selected="activeTab === index"
@click="selectTab(index)"
@keydown="handleKeyEvent($event)"
:ref="'tabnav' + index"
>
{{ tab.name }}
</button>
</div>
<div class="tab-content cw-tabs-content">
<slot></slot>
</div>
</div>
</template>
<script>
export default {
name: 'CoursewareTabs',
emits: ['update:modelValue'],
props: {
modelValue: { type: Number },
},
data() {
return {
activeTab: 0,
tabs: [],
};
},
methods: {
selectTab(index) {
if (index >= this.tabs.length || index < 0) {
return;
}
this.activeTab = index;
this.$refs['tabnav' + index][0].focus();
},
addTab(tab) {
this.tabs.push(tab);
},
handleKeyEvent(e) {
const index = parseInt(e.target.dataset.index);
switch (e.keyCode) {
case 37: // left
case 38: // up
if (index !== 0) {
this.selectTab(index - 1);
} else {
this.selectTab(this.tabs.length - 1);
}
break;
case 39: // right
case 40: // down
if (index !== this.tabs.length - 1) {
this.selectTab(index + 1);
} else {
this.selectTab(0);
}
break;
case 36: //pos1
this.selectTab(0);
break;
case 35: //end
this.selectTab(this.tabs.length - 1);
break;
}
},
getActiveTabElement() {
return this.$refs['tabnav' + this.activeTab][0];
},
},
provide() {
return {
addTab: this.addTab,
activeTab: () => this.activeTab,
};
},
mounted() {
this.$nextTick(() => {
if (this.modelValue) {
this.selectTab(this.modelValue);
}
});
},
watch: {
modelValue(newValue) {
this.selectTab(newValue);
},
activeTab(newValue) {
if (this.modelValue !== newValue) {
this.$emit('update:modelValue', newValue);
}
},
},
};
</script>
|
