checkbox.vue
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<template>
<label :class="wrapClasses">
<span :class="checkboxClasses">
<span :class="innerClasses" ref="inner"></span>
<input
v-if="group"
type="checkbox"
:class="inputClasses"
:disabled="disabled"
:value="label"
v-model="model"
:name="name"
@change="change"
@focus="onFocus"
@blur="onBlur">
<input
v-else
type="checkbox"
:class="inputClasses"
:disabled="disabled"
:checked="currentValue"
:name="name"
@change="change"
@focus="onFocus"
@blur="onBlur">
</span>
<slot><span v-if="showSlot">{{ label }}</span></slot>
</label>
</template>
<script>
import { findComponentUpward, oneOf } from '../../utils/assist';
import Emitter from '../../mixins/emitter';
const prefixCls = 'ivu-checkbox';
export default {
name: 'Checkbox',
mixins: [ Emitter ],
props: {
disabled: {
type: Boolean,
default: false
},
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, Boolean]
},
indeterminate: {
type: Boolean,
default: false
},
size: {
validator (value) {
return oneOf(value, ['small', 'large', 'default']);
}
},
name: {
type: String
}
},
data () {
return {
model: [],
currentValue: this.value,
group: false,
showSlot: true,
parent: findComponentUpward(this, 'CheckboxGroup'),
focusInner: false
};
},
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
}
];
},
checkboxClasses () {
return [
`${prefixCls}`,
{
[`${prefixCls}-checked`]: this.currentValue,
[`${prefixCls}-disabled`]: this.disabled,
[`${prefixCls}-indeterminate`]: this.indeterminate
}
];
},
innerClasses () {
return [
`${prefixCls}-inner`,
{
[`${prefixCls}-focus`]: this.focusInner
}
];
},
inputClasses () {
return `${prefixCls}-input`;
}
},
mounted () {
this.parent = findComponentUpward(this, 'CheckboxGroup');
if (this.parent) {
this.group = true;
}
if (this.group) {
this.parent.updateModel(true);
} else {
this.updateModel();
this.showSlot = this.$slots.default !== undefined;
}
},
methods: {
change (event) {
if (this.disabled) {
return false;
}
const checked = event.target.checked;
this.currentValue = checked;
const value = checked ? this.trueValue : this.falseValue;
this.$emit('input', value);
if (this.group) {
this.parent.change(this.model);
} else {
this.$emit('on-change', value);
this.dispatch('FormItem', 'on-form-change', value);
}
},
updateModel () {
this.currentValue = this.value === this.trueValue;
},
onBlur () {
this.focusInner = false;
},
onFocus () {
this.focusInner = true;
}
},
watch: {
value (val) {
if (val === this.trueValue || val === this.falseValue) {
this.updateModel();
} else {
throw 'Value should be trueValue or falseValue.';
}
}
}
};
</script>