element/packages/input/src/input.vue

351 lines
9.8 KiB
Vue

<template>
<div :class="[
type === 'textarea' ? 'el-textarea' : 'el-input',
inputSize ? 'el-input--' + inputSize : '',
{
'is-disabled': inputDisabled,
'el-input-group': $slots.prepend || $slots.append,
'el-input-group--append': $slots.append,
'el-input-group--prepend': $slots.prepend,
'el-input--prefix': $slots.prefix || prefixIcon,
'el-input--suffix': $slots.suffix || suffixIcon || clearable
}
]"
@mouseenter="hovering = true"
@mouseleave="hovering = false"
>
<template v-if="type !== 'textarea'">
<!-- 前置元素 -->
<div class="el-input-group__prepend" v-if="$slots.prepend">
<slot name="prepend"></slot>
</div>
<input
:tabindex="tabindex"
v-if="type !== 'textarea'"
class="el-input__inner"
v-bind="$attrs"
:type="type"
:disabled="inputDisabled"
:readonly="readonly"
:autocomplete="autoComplete || autocomplete"
:value="currentValue"
ref="input"
@compositionstart="handleComposition"
@compositionupdate="handleComposition"
@compositionend="handleComposition"
@input="handleInput"
@focus="handleFocus"
@blur="handleBlur"
@change="handleChange"
:aria-label="label"
>
<!-- 前置内容 -->
<span class="el-input__prefix" v-if="$slots.prefix || prefixIcon">
<slot name="prefix"></slot>
<i class="el-input__icon"
v-if="prefixIcon"
:class="prefixIcon">
</i>
</span>
<!-- 后置内容 -->
<span
class="el-input__suffix"
v-if="$slots.suffix || suffixIcon || showClear || validateState && needStatusIcon">
<span class="el-input__suffix-inner">
<template v-if="!showClear">
<slot name="suffix"></slot>
<i class="el-input__icon"
v-if="suffixIcon"
:class="suffixIcon">
</i>
</template>
<i v-else
class="el-input__icon el-icon-circle-close el-input__clear"
@click="clear"
></i>
</span>
<i class="el-input__icon"
v-if="validateState"
:class="['el-input__validateIcon', validateIcon]">
</i>
</span>
<!-- 后置元素 -->
<div class="el-input-group__append" v-if="$slots.append">
<slot name="append"></slot>
</div>
</template>
<textarea
v-else
:tabindex="tabindex"
class="el-textarea__inner"
:value="currentValue"
@compositionstart="handleComposition"
@compositionupdate="handleComposition"
@compositionend="handleComposition"
@input="handleInput"
ref="textarea"
v-bind="$attrs"
:disabled="inputDisabled"
:readonly="readonly"
:autocomplete="autoComplete || autocomplete"
:style="textareaStyle"
@focus="handleFocus"
@blur="handleBlur"
@change="handleChange"
:aria-label="label"
>
</textarea>
</div>
</template>
<script>
import emitter from 'element-ui/src/mixins/emitter';
import Migrating from 'element-ui/src/mixins/migrating';
import calcTextareaHeight from './calcTextareaHeight';
import merge from 'element-ui/src/utils/merge';
import { isKorean } from 'element-ui/src/utils/shared';
export default {
name: 'ElInput',
componentName: 'ElInput',
mixins: [emitter, Migrating],
inheritAttrs: false,
inject: {
elForm: {
default: ''
},
elFormItem: {
default: ''
}
},
data() {
return {
currentValue: this.value === undefined || this.value === null
? ''
: this.value,
textareaCalcStyle: {},
hovering: false,
focused: false,
isOnComposition: false,
valueBeforeComposition: null
};
},
props: {
value: [String, Number],
size: String,
resize: String,
form: String,
disabled: Boolean,
readonly: Boolean,
type: {
type: String,
default: 'text'
},
autosize: {
type: [Boolean, Object],
default: false
},
autocomplete: {
type: String,
default: 'off'
},
/** @Deprecated in next major version */
autoComplete: {
type: String,
validator(val) {
process.env.NODE_ENV !== 'production' &&
console.warn('[Element Warn][Input]\'auto-complete\' property will be deprecated in next major version. please use \'autocomplete\' instead.');
return true;
}
},
validateEvent: {
type: Boolean,
default: true
},
suffixIcon: String,
prefixIcon: String,
label: String,
clearable: {
type: Boolean,
default: false
},
tabindex: String
},
computed: {
_elFormItemSize() {
return (this.elFormItem || {}).elFormItemSize;
},
validateState() {
return this.elFormItem ? this.elFormItem.validateState : '';
},
needStatusIcon() {
return this.elForm ? this.elForm.statusIcon : false;
},
validateIcon() {
return {
validating: 'el-icon-loading',
success: 'el-icon-circle-check',
error: 'el-icon-circle-close'
}[this.validateState];
},
textareaStyle() {
return merge({}, this.textareaCalcStyle, { resize: this.resize });
},
inputSize() {
return this.size || this._elFormItemSize || (this.$ELEMENT || {}).size;
},
inputDisabled() {
return this.disabled || (this.elForm || {}).disabled;
},
showClear() {
return this.clearable &&
!this.disabled &&
!this.readonly &&
this.currentValue !== '' &&
(this.focused || this.hovering);
}
},
watch: {
value(val, oldValue) {
this.setCurrentValue(val);
}
},
methods: {
focus() {
(this.$refs.input || this.$refs.textarea).focus();
},
blur() {
(this.$refs.input || this.$refs.textarea).blur();
},
getMigratingConfig() {
return {
props: {
'icon': 'icon is removed, use suffix-icon / prefix-icon instead.',
'on-icon-click': 'on-icon-click is removed.'
},
events: {
'click': 'click is removed.'
}
};
},
handleBlur(event) {
this.focused = false;
this.$emit('blur', event);
if (this.validateEvent) {
this.dispatch('ElFormItem', 'el.form.blur', [this.currentValue]);
}
},
select() {
(this.$refs.input || this.$refs.textarea).select();
},
resizeTextarea() {
if (this.$isServer) return;
const { autosize, type } = this;
if (type !== 'textarea') return;
if (!autosize) {
this.textareaCalcStyle = {
minHeight: calcTextareaHeight(this.$refs.textarea).minHeight
};
return;
}
const minRows = autosize.minRows;
const maxRows = autosize.maxRows;
this.textareaCalcStyle = calcTextareaHeight(this.$refs.textarea, minRows, maxRows);
},
handleFocus(event) {
this.focused = true;
this.$emit('focus', event);
},
handleComposition(event) {
if (event.type === 'compositionend') {
this.isOnComposition = false;
this.currentValue = this.valueBeforeComposition;
this.valueBeforeComposition = null;
this.handleInput(event);
} else {
const text = event.target.value;
const lastCharacter = text[text.length - 1] || '';
this.isOnComposition = !isKorean(lastCharacter);
if (this.isOnComposition && event.type === 'compositionstart') {
this.valueBeforeComposition = text;
}
}
},
handleInput(event) {
const value = event.target.value;
this.setCurrentValue(value);
if (this.isOnComposition) return;
this.$emit('input', value);
},
handleChange(event) {
this.$emit('change', event.target.value);
},
setCurrentValue(value) {
if (this.isOnComposition && value === this.valueBeforeComposition) return;
this.currentValue = value;
if (this.isOnComposition) return;
this.$nextTick(this.resizeTextarea);
if (this.validateEvent && this.currentValue === this.value) {
this.dispatch('ElFormItem', 'el.form.change', [value]);
}
},
calcIconOffset(place) {
let elList = [].slice.call(this.$el.querySelectorAll(`.el-input__${place}`) || []);
if (!elList.length) return;
let el = null;
for (let i = 0; i < elList.length; i++) {
if (elList[i].parentNode === this.$el) {
el = elList[i];
break;
}
}
if (!el) return;
const pendantMap = {
suffix: 'append',
prefix: 'prepend'
};
const pendant = pendantMap[place];
if (this.$slots[pendant]) {
el.style.transform = `translateX(${place === 'suffix' ? '-' : ''}${this.$el.querySelector(`.el-input-group__${pendant}`).offsetWidth}px)`;
} else {
el.removeAttribute('style');
}
},
updateIconOffset() {
this.calcIconOffset('prefix');
this.calcIconOffset('suffix');
},
clear() {
this.$emit('input', '');
this.$emit('change', '');
this.$emit('clear');
this.setCurrentValue('');
this.focus();
}
},
created() {
this.$on('inputSelect', this.select);
},
mounted() {
this.resizeTextarea();
this.updateIconOffset();
},
updated() {
this.$nextTick(this.updateIconOffset);
}
};
</script>