input.vue
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<template>
<div :class="wrapClasses">
<template v-if="type !== 'textarea'">
<div :class="[prefixCls + '-group-prepend']" v-if="prepend" v-show="slotReady" ref="prepend"><slot name="prepend"></slot></div>
<i class="ivu-icon" :class="['ivu-icon-' + icon, prefixCls + '-icon']" v-if="icon" @click="handleIconClick"></i>
<transition name="fade">
<i class="ivu-icon ivu-icon-load-c ivu-load-loop" :class="[prefixCls + '-icon', prefixCls + '-icon-validate']" v-if="!icon"></i>
</transition>
<input
:type="type"
:class="inputClasses"
:placeholder="placeholder"
:disabled="disabled"
:maxlength="maxlength"
:readonly="readonly"
:name="name"
:value="currentValue"
:number="number"
@keyup.enter="handleEnter"
@focus="handleFocus"
@blur="handleBlur"
@input="handleInput">
<div :class="[prefixCls + '-group-append']" v-if="append" v-show="slotReady" ref="append"><slot name="append"></slot></div>
</template>
<textarea
v-else
ref="textarea"
:class="textareaClasses"
:style="textareaStyles"
:placeholder="placeholder"
:disabled="disabled"
:rows="rows"
:maxlength="maxlength"
:readonly="readonly"
:name="name"
:value="value"
@keyup.enter="handleEnter"
@focus="handleFocus"
@blur="handleBlur"
@input="handleInput">
</textarea>
</div>
</template>
<script>
import { oneOf } from '../../utils/assist';
import calcTextareaHeight from '../../utils/calcTextareaHeight';
const prefixCls = 'ivu-input';
export default {
props: {
type: {
validator (value) {
return oneOf(value, ['text', 'textarea', 'password']);
},
default: 'text'
},
value: {
type: [String, Number],
default: ''
},
size: {
validator (value) {
return oneOf(value, ['small', 'large']);
}
},
placeholder: {
type: String,
default: ''
},
maxlength: {
type: Number
},
disabled: {
type: Boolean,
default: false
},
icon: String,
autosize: {
type: [Boolean, Object],
default: false
},
rows: {
type: Number,
default: 2
},
readonly: {
type: Boolean,
default: false
},
name: {
type: String
},
number: {
type: Boolean,
default: false
}
},
data () {
return {
currentValue: this.value,
prefixCls: prefixCls,
prepend: true,
append: true,
slotReady: false,
textareaStyles: {}
};
},
computed: {
wrapClasses () {
return [
`${prefixCls}-wrapper`,
{
[`${prefixCls}-wrapper-${this.size}`]: !!this.size,
[`${prefixCls}-type`]: this.type,
[`${prefixCls}-group`]: this.prepend || this.append,
[`${prefixCls}-group-${this.size}`]: (this.prepend || this.append) && !!this.size
}
];
},
inputClasses () {
return [
`${prefixCls}`,
{
[`${prefixCls}-${this.size}`]: !!this.size,
[`${prefixCls}-disabled`]: this.disabled
}
];
},
textareaClasses () {
return [
`${prefixCls}`,
{
[`${prefixCls}-disabled`]: this.disabled
}
];
}
},
methods: {
handleEnter () {
this.$emit('on-enter');
},
handleIconClick () {
this.$emit('on-click');
},
handleFocus () {
this.$emit('on-focus');
},
handleBlur () {
this.$emit('on-blur');
// todo 事件
// this.$dispatch('on-form-blur', this.currentValue);
},
handleInput (event) {
const value = event.target.value;
this.$emit('input', value);
this.setCurrentValue(value);
this.$emit('on-change', event);
},
setCurrentValue (value) {
if (value === this.currentValue) return;
this.$nextTick(() => {
this.resizeTextarea();
});
this.currentValue = value;
// todo 事件
// this.$dispatch('on-form-change', value);
},
resizeTextarea () {
const autosize = this.autosize;
if (!autosize || this.type !== 'textarea') {
return false;
}
const minRows = autosize.minRows;
const maxRows = autosize.maxRows;
this.textareaStyles = calcTextareaHeight(this.$refs.textarea, minRows, maxRows);
}
},
watch: {
value (val) {
this.setCurrentValue(val);
}
},
mounted () {
if (this.type !== 'textarea') {
this.prepend = this.$slots.prepend !== undefined;
this.append = this.$slots.append !== undefined;
} else {
this.prepend = false;
this.append = false;
}
this.slotReady = true;
this.resizeTextarea();
}
};
</script>