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<template>
<view class="u-field" :class="{'u-border-top': borderTop, 'u-border-bottom': borderBottom }">
<view class="u-field-inner" :class="[type == 'textarea' ? 'u-textarea-inner' : '', 'u-label-postion-' + labelPosition]">
<view class="u-label" :class="[required ? 'u-required' : '']" :style="{
justifyContent: justifyContent,
flex: labelPosition == 'left' ? `0 0 ${labelWidth}rpx` : '1'
}">
<view class="u-icon-wrap" v-if="icon">
<u-icon size="32" :custom-style="iconStyle" :name="icon" :color="iconColor" class="u-icon"></u-icon>
</view>
<slot name="icon"></slot>
<text class="u-label-text" :class="[$slots.icon || icon ? 'u-label-left-gap' : '']">{{ label }}</text>
</view>
<view class="fild-body">
<view class="u-flex-1 u-flex" :style="[inputWrapStyle]">
<textarea v-if="type == 'textarea'" class="u-flex-1 u-textarea-class" :style="[fieldStyle]" :value="valueCom"
:placeholder="placeholder" :placeholderStyle="placeholderStyle" :disabled="disabled" :maxlength="inputMaxlength"
:focus="focus" :autoHeight="autoHeight" :fixed="fixed" @input="onInput" @blur="onBlur" @focus="onFocus" @confirm="onConfirm"
@tap="fieldClick" />
<input
v-else
:style="[fieldStyle]"
:type="type"
class="u-flex-1 u-field__input-wrap"
:value="valueCom"
:password="password || type === 'password'"
:placeholder="placeholder"
:placeholderStyle="placeholderStyle"
:disabled="disabled"
:maxlength="inputMaxlength"
:focus="focus"
:confirmType="confirmType"
@focus="onFocus"
@blur="onBlur"
@input="onInput"
@confirm="onConfirm"
@tap="fieldClick"
/>
</view>
<u-icon :size="clearSize" v-if="clearable && valueCom != '' && focused" name="close-circle-fill" color="#c0c4cc" class="u-clear-icon" @click="onClear"/>
<view class="u-button-wrap"><slot name="right" /></view>
<u-icon v-if="rightIcon" @click="rightIconClick" :name="rightIcon" color="#c0c4cc" :style="[rightIconStyle]" size="26" class="u-arror-right" />
</view>
</view>
<view v-if="errorMessage !== false && errorMessage != ''" class="u-error-message" :style="{
paddingLeft: labelWidth + 'rpx'
}">{{ errorMessage }}</view>
</view>
</template>
<script>
/**
* field 输入框
* @description 借助此组件可以实现表单的输入 "text""textarea"类型的此外借助uView的picker和actionSheet组件可以快速实现上拉菜单时间地区选择等 为表单解决方案的利器
* @tutorial https://www.uviewui.com/components/field.html
* @property {String} type 输入框的类型默认text
* @property {String} icon label左边的图标限uView的图标名称
* @property {Object} icon-style 左边图标的样式对象形式
* @property {Boolean} right-icon 输入框右边的图标名称限uView的图标名称默认false
* @property {Boolean} required 是否必填左边您显示红色"*"默认false
* @property {String} label 输入框左边的文字提示
* @property {Boolean} password 是否密码输入方式(用点替换文字)type为text时有效默认false
* @property {Boolean} clearable 是否显示右侧清空内容的图标控件(输入框有内容且获得焦点时才显示)点击可清空输入框内容默认true
* @property {Number String} label-width label的宽度单位rpx默认130
* @property {String} label-align label的文字对齐方式默认left
* @property {Object} field-style 自定义输入框的样式对象形式
* @property {Number | String} clear-size 清除图标的大小单位rpx默认30
* @property {String} input-align 输入框内容对齐方式默认left
* @property {Boolean} border-bottom 是否显示field的下边框默认true
* @property {Boolean} border-top 是否显示field的上边框默认false
* @property {String} icon-color 左边通过icon配置的图标的颜色默认#606266
* @property {Boolean} auto-height 是否自动增高输入区域type为textarea时有效默认true
* @property {String Boolean} error-message 显示的错误提示内容如果为空字符串或者false则不显示错误信息
* @property {String} placeholder 输入框的提示文字
* @property {String} placeholder-style placeholder的样式(内联样式字符串)"color: #ddd"
* @property {Boolean} focus 是否自动获得焦点默认false
* @property {Boolean} fixed 如果type为textarea且在一个"position:fixed"的区域需要指明为true默认false
* @property {Boolean} disabled 是否不可输入默认false
* @property {Number String} maxlength 最大输入长度设置为 -1 的时候不限制最大长度默认140
* @property {String} confirm-type 设置键盘右下角按钮的文字仅在type="text"时生效默认done
* @event {Function} input 输入框内容发生变化时触发
* @event {Function} focus 输入框获得焦点时触发
* @event {Function} blur 输入框失去焦点时触发
* @event {Function} confirm 点击完成按钮时触发
* @event {Function} right-icon-click 通过right-icon生成的图标被点击时触发
* @event {Function} click 输入框被点击或者通过right-icon生成的图标被点击时触发这样设计是考虑到传递右边的图标一般都为需要弹出"picker"等操作时的场景点击倒三角图标理应发出此事件见上方说明
* @example <u-field v-model="mobile" label="手机号" required :error-message="errorMessage"></u-field>
*/
export default {
name:"u-field",
emits: ["update:modelValue", "input", "focus", "blur", "confirm", "right-icon-click", "click"],
props: {
value: [Number, String],
modelValue: [Number, String],
icon: String,
rightIcon: String,
arrowDirection: {
type: String,
default: 'right'
},
required: Boolean,
label: String,
password: Boolean,
clearable: {
type: Boolean,
default: true
},
// 左边标题的宽度单位rpx
labelWidth: {
type: [Number, String],
default: 130
},
// 对齐方式,left|center|right
labelAlign: {
type: String,
default: 'left'
},
inputAlign: {
type: String,
default: 'left'
},
iconColor: {
type: String,
default: '#606266'
},
autoHeight: {
type: Boolean,
default: true
},
errorMessage: {
type: [String, Boolean],
default: ''
},
placeholder: String,
placeholderStyle: String,
focus: Boolean,
fixed: Boolean,
type: {
type: String,
default: 'text'
},
disabled: {
type: Boolean,
default: false
},
maxlength: {
type: [Number, String],
default: 140
},
confirmType: {
type: String,
default: 'done'
},
// lable的位置,可选为 left-左边,top-上边
labelPosition: {
type: String,
default: 'left'
},
// 输入框的自定义样式
fieldStyle: {
type: Object,
default() {
return {}
}
},
// 清除按钮的大小
clearSize: {
type: [Number, String],
default: 30
},
// lable左边的图标样式,对象形式
iconStyle: {
type: Object,
default() {
return {}
}
},
// 是否显示上边框
borderTop: {
type: Boolean,
default: false
},
// 是否显示下边框
borderBottom: {
type: Boolean,
default: true
},
// 是否自动去除两端的空格
trim: {
type: Boolean,
default: true
}
},
data() {
return {
focused: false,
itemIndex: 0,
};
},
computed: {
valueCom() {
// #ifndef VUE3
return this.value;
// #endif
// #ifdef VUE3
return this.modelValue;
// #endif
},
inputWrapStyle() {
let style = {};
style.textAlign = this.inputAlign;
// 判断lable的位置,如果是left的话,让input左边两边有间隙
if(this.labelPosition == 'left') {
style.margin = `0 8rpx`;
} else {
// 如果lable是top的,input的左边就没必要有间隙了
style.marginRight = `8rpx`;
}
return style;
},
rightIconStyle() {
let style = {};
let arrowDirectionObj = {
"top": "-90deg",
"bottom": "90deg",
"left": "180deg",
"right": "0deg",
};
let deg = arrowDirectionObj[this.arrowDirection] || "0deg";
style.transform = 'rotate('+deg+')';
return style;
},
labelStyle() {
let style = {};
if(this.labelAlign == 'left') style.justifyContent = 'flext-start';
if(this.labelAlign == 'center') style.justifyContent = 'center';
if(this.labelAlign == 'right') style.justifyContent = 'flext-end';
return style;
},
// uni不支持在computed中写style.justifyContent = 'center'的形式,故用此方法
justifyContent() {
if(this.labelAlign == 'left') return 'flex-start';
if(this.labelAlign == 'center') return 'center';
if(this.labelAlign == 'right') return 'flex-end';
},
// 因为uniapp的input组件的maxlength组件必须要数值,这里转为数值,给用户可以传入字符串数值
inputMaxlength() {
return Number(this.maxlength)
},
// label的位置
fieldInnerStyle() {
let style = {};
if(this.labelPosition == 'left') {
style.flexDirection = 'row';
} else {
style.flexDirection = 'column';
}
return style;
}
},
methods: {
onInput(event) {
let value = event.detail.value;
// 判断是否去除空格
if(this.trim) value = this.$u.trim(value);
this.$emit('input', value);
this.$emit("update:modelValue", value);
},
onFocus(event) {
this.focused = true;
this.$emit('focus', event);
},
onBlur(event) {
// 最开始使用的是监听图标@touchstart事件,自从hx2.8.4后,此方法在微信小程序出错
// 这里改为监听点击事件,手点击清除图标时,同时也发生了@blur事件,导致图标消失而无法点击,这里做一个延时
setTimeout(() => {
this.focused = false;
}, 100)
this.$emit('blur', event);
},
onConfirm(e) {
this.$emit('confirm', e.detail.value);
},
onClear(event) {
this.$emit('input', '');
this.$emit("update:modelValue", '');
},
rightIconClick() {
this.$emit('right-icon-click');
this.$emit('click');
},
fieldClick() {
this.$emit('click');
}
}
};
</script>
<style lang="scss" scoped>
@import "../../libs/css/style.components.scss";
.u-field {
font-size: 28rpx;
padding: 20rpx 28rpx;
text-align: left;
position: relative;
color: $u-main-color;
}
.u-field-inner {
@include vue-flex;
align-items: center;
}
.u-textarea-inner {
align-items: flex-start;
}
.u-textarea-class {
min-height: 96rpx;
width: auto;
font-size: 28rpx;
}
.fild-body {
@include vue-flex;
flex: 1;
align-items: center;
}
.u-arror-right {
margin-left: 8rpx;
}
.u-label-text {
/* #ifndef APP-NVUE */
display: inline-flex;
/* #endif */
}
.u-label-left-gap {
margin-left: 6rpx;
}
.u-label-postion-top {
flex-direction: column;
align-items: flex-start;
}
.u-label {
width: 130rpx;
flex: 1 1 130rpx;
text-align: left;
position: relative;
@include vue-flex;
align-items: center;
}
.u-required::before {
content: '*';
position: absolute;
left: -16rpx;
font-size: 14px;
color: $u-type-error;
height: 9px;
line-height: 1;
}
.u-field__input-wrap {
position: relative;
overflow: hidden;
font-size: 28rpx;
height: 48rpx;
flex: 1;
width: auto;
}
.u-clear-icon {
@include vue-flex;
align-items: center;
}
.u-error-message {
color: $u-type-error;
font-size: 26rpx;
text-align: left;
}
.placeholder-style {
color: rgb(150, 151, 153);
}
.u-input-class {
font-size: 28rpx;
}
.u-button-wrap {
margin-left: 8rpx;
}
</style>