submenu.vue
4.64 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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
<template>
<li :class="classes" @mouseenter="handleMouseenter" @mouseleave="handleMouseleave">
<div :class="[prefixCls + '-submenu-title']" ref="reference" @click="handleClick">
<slot name="title"></slot>
<Icon type="ios-arrow-down" :class="[prefixCls + '-submenu-title-icon']"></Icon>
</div>
<collapse-transition v-if="mode === 'vertical'">
<ul :class="[prefixCls]" v-show="opened"><slot></slot></ul>
</collapse-transition>
<transition name="slide-up" v-else>
<Drop
v-show="opened"
placement="bottom"
ref="drop"
:style="dropStyle"><ul><slot></slot></ul>
</Drop>
</transition>
</li>
</template>
<script>
import Drop from '../select/dropdown.vue';
import Icon from '../icon/icon.vue';
import CollapseTransition from '../base/collapse-transition';
import { getStyle, findComponentUpward } from '../../utils/assist';
import Emitter from '../../mixins/emitter';
const prefixCls = 'ivu-menu';
export default {
name: 'Submenu',
mixins: [ Emitter ],
components: { Icon, Drop, CollapseTransition },
props: {
name: {
type: [String, Number],
required: true
},
disabled: {
type: Boolean,
default: false
}
},
data () {
return {
prefixCls: prefixCls,
active: false,
opened: false,
dropWidth: parseFloat(getStyle(this.$el, 'width')),
parent: findComponentUpward(this, 'Menu')
};
},
computed: {
classes () {
return [
`${prefixCls}-submenu`,
{
[`${prefixCls}-item-active`]: this.active,
[`${prefixCls}-opened`]: this.opened,
[`${prefixCls}-submenu-disabled`]: this.disabled
}
];
},
mode () {
return this.parent.mode;
},
accordion () {
return this.parent.accordion;
},
dropStyle () {
let style = {};
if (this.dropWidth) style.minWidth = `${this.dropWidth}px`;
return style;
}
},
methods: {
handleMouseenter () {
if (this.disabled) return;
if (this.mode === 'vertical') return;
clearTimeout(this.timeout);
this.timeout = setTimeout(() => {
this.parent.updateOpenKeys(this.name);
this.opened = true;
}, 250);
},
handleMouseleave () {
if (this.disabled) return;
if (this.mode === 'vertical') return;
clearTimeout(this.timeout);
this.timeout = setTimeout(() => {
this.parent.updateOpenKeys(this.name);
this.opened = false;
}, 150);
},
handleClick () {
if (this.disabled) return;
if (this.mode === 'horizontal') return;
const opened = this.opened;
if (this.accordion) {
this.parent.$children.forEach(item => {
if (item.$options.name === 'Submenu') item.opened = false;
});
}
this.opened = !opened;
this.parent.updateOpenKeys(this.name);
}
},
watch: {
mode (val) {
if (val === 'horizontal') {
this.$refs.drop.update();
}
},
opened (val) {
if (this.mode === 'vertical') return;
if (val) {
// set drop a width to fixed when menu has fixed position
this.dropWidth = parseFloat(getStyle(this.$el, 'width'));
this.$refs.drop.update();
} else {
this.$refs.drop.destroy();
}
}
},
mounted () {
this.$on('on-menu-item-select', (name) => {
if (this.mode === 'horizontal') this.opened = false;
this.dispatch('Menu', 'on-menu-item-select', name);
return true;
});
this.$on('on-update-active-name', (status) => {
this.active = status;
});
}
};
</script>