radio.vue
4.08 KB
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<template>
<label
:class="wrapClasses"
:tabindex="disabled ? -1 : 0"
@keyup.space="change">
<span :class="radioClasses">
<span :class="innerClasses"></span>
<input
type="radio"
tabindex="-1"
:class="inputClasses"
:disabled="disabled"
:checked="currentValue"
:name="name"
@change="change"
@focus="$el.focus()"
>
</span><slot>{{ label }}</slot>
</label>
</template>
<script>
import { findComponentUpward, oneOf } from '../../utils/assist';
import Emitter from '../../mixins/emitter';
const prefixCls = 'ivu-radio';
export default {
name: 'Radio',
mixins: [ Emitter ],
props: {
value: {
type: [String, Number, Boolean],
default: false
},
trueValue: {
type: [String, Number, Boolean],
default: true
},
falseValue: {
type: [String, Number, Boolean],
default: false
},
label: {
type: [String, Number]
},
disabled: {
type: Boolean,
default: false
},
size: {
validator (value) {
return oneOf(value, ['small', 'large', 'default']);
}
},
name: {
type: String
}
},
data () {
return {
currentValue: this.value,
group: false,
parent: findComponentUpward(this, 'RadioGroup')
};
},
computed: {
wrapClasses () {
return [
`${prefixCls}-wrapper`,
{
[`${prefixCls}-group-item`]: this.group,
[`${prefixCls}-wrapper-checked`]: this.currentValue,
[`${prefixCls}-wrapper-disabled`]: this.disabled,
[`${prefixCls}-${this.size}`]: !!this.size
}
];
},
radioClasses () {
return [
`${prefixCls}`,
{
[`${prefixCls}-checked`]: this.currentValue,
[`${prefixCls}-disabled`]: this.disabled
}
];
},
innerClasses () {
return `${prefixCls}-inner`;
},
inputClasses () {
return `${prefixCls}-input`;
}
},
mounted () {
if (this.parent) this.group = true;
if (!this.group) {
this.updateValue();
} else {
this.parent.updateValue();
}
},
methods: {
change (event) {
if (this.disabled) {
return false;
}
const checked = event.target.checked;
this.currentValue = checked;
let value = checked ? this.trueValue : this.falseValue;
this.$emit('input', value);
if (this.group && this.label !== undefined) {
this.parent.change({
value: this.label,
checked: this.value
});
}
if (!this.group) {
this.$emit('on-change', value);
this.dispatch('FormItem', 'on-form-change', value);
}
},
updateValue () {
this.currentValue = this.value === this.trueValue;
}
},
watch: {
value (val) {
if (val !== this.trueValue && val !== this.falseValue) {
throw 'Value should be trueValue or falseValue.';
}
this.updateValue();
}
}
};
</script>