355 lines
15 KiB
Vue
355 lines
15 KiB
Vue
|
<template>
|
|||
|
|
<view class="u-input" :class="inputClass" :style="[wrapperStyle]">
|
|||
|
|
<view class="u-input__content">
|
|||
|
|
<view
|
|||
|
|
class="u-input__content__prefix-icon"
|
|||
|
|
v-if="prefixIcon || $slots.prefix"
|
|||
|
|
>
|
|||
|
|
<slot name="prefix">
|
|||
|
|
<u-icon
|
|||
|
|
:name="prefixIcon"
|
|||
|
|
size="18"
|
|||
|
|
:customStyle="prefixIconStyle"
|
|||
|
|
></u-icon>
|
|||
|
|
</slot>
|
|||
|
|
</view>
|
|||
|
|
<view class="u-input__content__field-wrapper" @tap="clickHandler">
|
|||
|
|
<!-- 根据uni-app的input组件文档，H5和APP中只要声明了password参数(无论true还是false)，type均失效，此时
|
|||
|
|
为了防止type=number时，又存在password属性，type无效，此时需要设置password为undefined
|
|||
|
|
-->
|
|||
|
|
<input
|
|||
|
|
class="u-input__content__field-wrapper__field"
|
|||
|
|
:style="[inputStyle]"
|
|||
|
|
:type="type"
|
|||
|
|
:focus="focus"
|
|||
|
|
:cursor="cursor"
|
|||
|
|
:value="innerValue"
|
|||
|
|
:auto-blur="autoBlur"
|
|||
|
|
:disabled="disabled || readonly"
|
|||
|
|
:maxlength="maxlength"
|
|||
|
|
:placeholder="placeholder"
|
|||
|
|
:placeholder-style="placeholderStyle"
|
|||
|
|
:placeholder-class="placeholderClass"
|
|||
|
|
:confirm-type="confirmType"
|
|||
|
|
:confirm-hold="confirmHold"
|
|||
|
|
:hold-keyboard="holdKeyboard"
|
|||
|
|
:cursor-spacing="cursorSpacing"
|
|||
|
|
:adjust-position="adjustPosition"
|
|||
|
|
:selection-end="selectionEnd"
|
|||
|
|
:selection-start="selectionStart"
|
|||
|
|
:password="password || type === 'password' || false"
|
|||
|
|
:ignoreCompositionEvent="ignoreCompositionEvent"
|
|||
|
|
@input="onInput"
|
|||
|
|
@blur="onBlur"
|
|||
|
|
@focus="onFocus"
|
|||
|
|
@confirm="onConfirm"
|
|||
|
|
@keyboardheightchange="onkeyboardheightchange"
|
|||
|
|
/>
|
|||
|
|
</view>
|
|||
|
|
<view
|
|||
|
|
class="u-input__content__clear"
|
|||
|
|
v-if="isShowClear"
|
|||
|
|
@tap="onClear"
|
|||
|
|
>
|
|||
|
|
<u-icon
|
|||
|
|
name="close"
|
|||
|
|
size="11"
|
|||
|
|
color="#ffffff"
|
|||
|
|
customStyle="line-height: 12px"
|
|||
|
|
></u-icon>
|
|||
|
|
</view>
|
|||
|
|
<view
|
|||
|
|
class="u-input__content__subfix-icon"
|
|||
|
|
v-if="suffixIcon || $slots.suffix"
|
|||
|
|
>
|
|||
|
|
<slot name="suffix">
|
|||
|
|
<u-icon
|
|||
|
|
:name="suffixIcon"
|
|||
|
|
size="18"
|
|||
|
|
:customStyle="suffixIconStyle"
|
|||
|
|
></u-icon>
|
|||
|
|
</slot>
|
|||
|
|
</view>
|
|||
|
|
</view>
|
|||
|
|
</view>
|
|||
|
|
</template>
|
|||
|
|
|
|||
|
|
<script>
|
|||
|
|
import props from "./props.js";
|
|||
|
|
/**
|
|||
|
|
* Input 输入框
|
|||
|
|
* @description 此组件为一个输入框，默认没有边框和样式，是专门为配合表单组件u-form而设计的，利用它可以快速实现表单验证，输入内容，下拉选择等功能。
|
|||
|
|
* @tutorial https://uviewui.com/components/input.html
|
|||
|
|
* @property {String | Number} value 输入的值
|
|||
|
|
* @property {String} type 输入框类型，见上方说明 （ 默认 'text' ）
|
|||
|
|
* @property {Boolean} fixed 如果 textarea 是在一个 position:fixed 的区域，需要显示指定属性 fixed 为 true，兼容性：微信小程序、百度小程序、字节跳动小程序、QQ小程序 （ 默认 false ）
|
|||
|
|
* @property {Boolean} disabled 是否禁用输入框 （ 默认 false ）
|
|||
|
|
* @property {String} disabledColor 禁用状态时的背景色（ 默认 '#f5f7fa' ）
|
|||
|
|
* @property {Boolean} clearable 是否显示清除控件 （ 默认 false ）
|
|||
|
|
* @property {Boolean} password 是否密码类型 （ 默认 false ）
|
|||
|
|
* @property {String | Number} maxlength 最大输入长度，设置为 -1 的时候不限制最大长度 （ 默认 -1 ）
|
|||
|
|
* @property {String} placeholder 输入框为空时的占位符
|
|||
|
|
* @property {String} placeholderClass 指定placeholder的样式类，注意页面或组件的style中写了scoped时，需要在类名前写/deep/ （ 默认 'input-placeholder' ）
|
|||
|
|
* @property {String | Object} placeholderStyle 指定placeholder的样式，字符串/对象形式，如"color: red;"
|
|||
|
|
* @property {Boolean} showWordLimit 是否显示输入字数统计，只在 type ="text"或type ="textarea"时有效 （ 默认 false ）
|
|||
|
|
* @property {String} confirmType 设置右下角按钮的文字，兼容性详见uni-app文档 （ 默认 'done' ）
|
|||
|
|
* @property {Boolean} confirmHold 点击键盘右下角按钮时是否保持键盘不收起，H5无效 （ 默认 false ）
|
|||
|
|
* @property {Boolean} holdKeyboard focus时，点击页面的时候不收起键盘，微信小程序有效 （ 默认 false ）
|
|||
|
|
* @property {Boolean} focus 自动获取焦点，在 H5 平台能否聚焦以及软键盘是否跟随弹出，取决于当前浏览器本身的实现。nvue 页面不支持，需使用组件的 focus()、blur() 方法控制焦点 （ 默认 false ）
|
|||
|
|
* @property {Boolean} autoBlur 键盘收起时，是否自动失去焦点，目前仅App3.0.0+有效 （ 默认 false ）
|
|||
|
|
* @property {Boolean} disableDefaultPadding 是否去掉 iOS 下的默认内边距，仅微信小程序，且type=textarea时有效 （ 默认 false ）
|
|||
|
|
* @property {String ｜ Number} cursor 指定focus时光标的位置（ 默认 -1 ）
|
|||
|
|
* @property {String ｜ Number} cursorSpacing 输入框聚焦时底部与键盘的距离 （ 默认 30 ）
|
|||
|
|
* @property {String ｜ Number} selectionStart 光标起始位置，自动聚集时有效，需与selection-end搭配使用 （ 默认 -1 ）
|
|||
|
|
* @property {String ｜ Number} selectionEnd 光标结束位置，自动聚集时有效，需与selection-start搭配使用 （ 默认 -1 ）
|
|||
|
|
* @property {Boolean} adjustPosition 键盘弹起时，是否自动上推页面 （ 默认 true ）
|
|||
|
|
* @property {String} inputAlign 输入框内容对齐方式（ 默认 'left' ）
|
|||
|
|
* @property {String | Number} fontSize 输入框字体的大小 （ 默认 '15px' ）
|
|||
|
|
* @property {String} color 输入框字体颜色 （ 默认 '#303133' ）
|
|||
|
|
* @property {Function} formatter 内容式化函数
|
|||
|
|
* @property {String} prefixIcon 输入框前置图标
|
|||
|
|
* @property {String | Object} prefixIconStyle 前置图标样式，对象或字符串
|
|||
|
|
* @property {String} suffixIcon 输入框后置图标
|
|||
|
|
* @property {String | Object} suffixIconStyle 后置图标样式，对象或字符串
|
|||
|
|
* @property {String} border 边框类型，surround-四周边框，bottom-底部边框，none-无边框 （ 默认 'surround' ）
|
|||
|
|
* @property {Boolean} readonly 是否只读，与disabled不同之处在于disabled会置灰组件，而readonly则不会 （ 默认 false ）
|
|||
|
|
* @property {String} shape 输入框形状，circle-圆形，square-方形 （ 默认 'square' ）
|
|||
|
|
* @property {Object} customStyle 定义需要用到的外部样式
|
|||
|
|
* @property {Boolean} ignoreCompositionEvent 是否忽略组件内对文本合成系统事件的处理。
|
|||
|
|
* @example <u-input v-model="value" :password="true" suffix-icon="lock-fill" />
|
|||
|
|
*/
|
|||
|
|
export default {
|
|||
|
|
name: "u-input",
|
|||
|
|
mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
|
|||
|
|
data() {
|
|||
|
|
return {
|
|||
|
|
// 输入框的值
|
|||
|
|
innerValue: "",
|
|||
|
|
// 是否处于获得焦点状态
|
|||
|
|
focused: false,
|
|||
|
|
// value是否第一次变化，在watch中，由于加入immediate属性，会在第一次触发，此时不应该认为value发生了变化
|
|||
|
|
firstChange: true,
|
|||
|
|
// value绑定值的变化是由内部还是外部引起的
|
|||
|
|
changeFromInner: false,
|
|||
|
|
// 过滤处理方法
|
|||
|
|
innerFormatter: value => value
|
|||
|
|
};
|
|||
|
|
},
|
|||
|
|
watch: {
|
|||
|
|
value: {
|
|||
|
|
immediate: true,
|
|||
|
|
handler(newVal, oldVal) {
|
|||
|
|
this.innerValue = newVal;
|
|||
|
|
/* #ifdef H5 */
|
|||
|
|
// 在H5中，外部value变化后，修改input中的值，不会触发@input事件，此时手动调用值变化方法
|
|||
|
|
if (
|
|||
|
|
this.firstChange === false &&
|
|||
|
|
this.changeFromInner === false
|
|||
|
|
) {
|
|||
|
|
this.valueChange();
|
|||
|
|
}
|
|||
|
|
/* #endif */
|
|||
|
|
this.firstChange = false;
|
|||
|
|
// 重置changeFromInner的值为false，标识下一次引起默认为外部引起的
|
|||
|
|
this.changeFromInner = false;
|
|||
|
|
},
|
|||
|
|
},
|
|||
|
|
},
|
|||
|
|
computed: {
|
|||
|
|
// 是否显示清除控件
|
|||
|
|
isShowClear() {
|
|||
|
|
const { clearable, readonly, focused, innerValue } = this;
|
|||
|
|
return !!clearable && !readonly && !!focused && innerValue !== "";
|
|||
|
|
},
|
|||
|
|
// 组件的类名
|
|||
|
|
inputClass() {
|
|||
|
|
let classes = [],
|
|||
|
|
{ border, disabled, shape } = this;
|
|||
|
|
border === "surround" &&
|
|||
|
|
(classes = classes.concat(["u-border", "u-input--radius"]));
|
|||
|
|
classes.push(`u-input--${shape}`);
|
|||
|
|
border === "bottom" &&
|
|||
|
|
(classes = classes.concat([
|
|||
|
|
"u-border-bottom",
|
|||
|
|
"u-input--no-radius",
|
|||
|
|
]));
|
|||
|
|
return classes.join(" ");
|
|||
|
|
},
|
|||
|
|
// 组件的样式
|
|||
|
|
wrapperStyle() {
|
|||
|
|
const style = {};
|
|||
|
|
// 禁用状态下，被背景色加上对应的样式
|
|||
|
|
if (this.disabled) {
|
|||
|
|
style.backgroundColor = this.disabledColor;
|
|||
|
|
}
|
|||
|
|
// 无边框时，去除内边距
|
|||
|
|
if (this.border === "none") {
|
|||
|
|
style.padding = "0";
|
|||
|
|
} else {
|
|||
|
|
// 由于uni-app的iOS开发者能力有限，导致需要分开写才有效
|
|||
|
|
style.paddingTop = "6px";
|
|||
|
|
style.paddingBottom = "6px";
|
|||
|
|
style.paddingLeft = "9px";
|
|||
|
|
style.paddingRight = "9px";
|
|||
|
|
}
|
|||
|
|
return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle));
|
|||
|
|
},
|
|||
|
|
// 输入框的样式
|
|||
|
|
inputStyle() {
|
|||
|
|
const style = {
|
|||
|
|
color: this.color,
|
|||
|
|
fontSize: uni.$u.addUnit(this.fontSize),
|
|||
|
|
textAlign: this.inputAlign
|
|||
|
|
};
|
|||
|
|
return style;
|
|||
|
|
},
|
|||
|
|
},
|
|||
|
|
methods: {
|
|||
|
|
// 在微信小程序中，不支持将函数当做props参数，故只能通过ref形式调用
|
|||
|
|
setFormatter(e) {
|
|||
|
|
this.innerFormatter = e
|
|||
|
|
},
|
|||
|
|
// 当键盘输入时，触发input事件
|
|||
|
|
onInput(e) {
|
|||
|
|
let { value = "" } = e.detail || {};
|
|||
|
|
// 格式化过滤方法
|
|||
|
|
const formatter = this.formatter || this.innerFormatter
|
|||
|
|
const formatValue = formatter(value)
|
|||
|
|
// 为了避免props的单向数据流特性，需要先将innerValue值设置为当前值，再在$nextTick中重新赋予设置后的值才有效
|
|||
|
|
this.innerValue = value
|
|||
|
|
this.$nextTick(() => {
|
|||
|
|
this.innerValue = formatValue;
|
|||
|
|
this.valueChange();
|
|||
|
|
})
|
|||
|
|
},
|
|||
|
|
// 输入框失去焦点时触发
|
|||
|
|
onBlur(event) {
|
|||
|
|
this.$emit("blur", event.detail.value);
|
|||
|
|
// H5端的blur会先于点击清除控件的点击click事件触发，导致focused
|
|||
|
|
// 瞬间为false，从而隐藏了清除控件而无法被点击到
|
|||
|
|
uni.$u.sleep(50).then(() => {
|
|||
|
|
this.focused = false;
|
|||
|
|
});
|
|||
|
|
// 尝试调用u-form的验证方法
|
|||
|
|
uni.$u.formValidate(this, "blur");
|
|||
|
|
},
|
|||
|
|
// 输入框聚焦时触发
|
|||
|
|
onFocus(event) {
|
|||
|
|
this.focused = true;
|
|||
|
|
this.$emit("focus");
|
|||
|
|
},
|
|||
|
|
// 点击完成按钮时触发
|
|||
|
|
onConfirm(event) {
|
|||
|
|
this.$emit("confirm", this.innerValue);
|
|||
|
|
},
|
|||
|
|
// 键盘高度发生变化的时候触发此事件
|
|||
|
|
// 兼容性：微信小程序2.7.0+、App 3.1.0+
|
|||
|
|
onkeyboardheightchange() {
|
|||
|
|
this.$emit("keyboardheightchange");
|
|||
|
|
},
|
|||
|
|
// 内容发生变化，进行处理
|
|||
|
|
valueChange() {
|
|||
|
|
const value = this.innerValue;
|
|||
|
|
this.$nextTick(() => {
|
|||
|
|
this.$emit("input", value);
|
|||
|
|
// 标识value值的变化是由内部引起的
|
|||
|
|
this.changeFromInner = true;
|
|||
|
|
this.$emit("change", value);
|
|||
|
|
// 尝试调用u-form的验证方法
|
|||
|
|
uni.$u.formValidate(this, "change");
|
|||
|
|
});
|
|||
|
|
},
|
|||
|
|
// 点击清除控件
|
|||
|
|
onClear() {
|
|||
|
|
this.innerValue = "";
|
|||
|
|
this.$nextTick(() => {
|
|||
|
|
this.valueChange();
|
|||
|
|
this.$emit("clear");
|
|||
|
|
});
|
|||
|
|
},
|
|||
|
|
/**
|
|||
|
|
* 在安卓nvue上，事件无法冒泡
|
|||
|
|
* 在某些时间，我们希望监听u-from-item的点击事件，此时会导致点击u-form-item内的u-input后
|
|||
|
|
* 无法触发u-form-item的点击事件，这里通过手动调用u-form-item的方法进行触发
|
|||
|
|
*/
|
|||
|
|
clickHandler() {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
if (uni.$u.os() === "android") {
|
|||
|
|
const formItem = uni.$u.$parent.call(this, "u-form-item");
|
|||
|
|
if (formItem) {
|
|||
|
|
formItem.clickHandler();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// #endif
|
|||
|
|
},
|
|||
|
|
},
|
|||
|
|
};
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<style lang="scss" scoped>
|
|||
|
|
@import "../../libs/css/components.scss";
|
|||
|
|
|
|||
|
|
.u-input {
|
|||
|
|
@include flex(row);
|
|||
|
|
align-items: center;
|
|||
|
|
justify-content: space-between;
|
|||
|
|
flex: 1;
|
|||
|
|
|
|||
|
|
&--radius,
|
|||
|
|
&--square {
|
|||
|
|
border-radius: 4px;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&--no-radius {
|
|||
|
|
border-radius: 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&--circle {
|
|||
|
|
border-radius: 100px;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&__content {
|
|||
|
|
flex: 1;
|
|||
|
|
@include flex(row);
|
|||
|
|
align-items: center;
|
|||
|
|
justify-content: space-between;
|
|||
|
|
|
|||
|
|
&__field-wrapper {
|
|||
|
|
position: relative;
|
|||
|
|
@include flex(row);
|
|||
|
|
margin: 0;
|
|||
|
|
flex: 1;
|
|||
|
|
|
|||
|
|
&__field {
|
|||
|
|
line-height: 26px;
|
|||
|
|
text-align: left;
|
|||
|
|
color: $u-main-color;
|
|||
|
|
height: 24px;
|
|||
|
|
font-size: 15px;
|
|||
|
|
flex: 1;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&__clear {
|
|||
|
|
width: 20px;
|
|||
|
|
height: 20px;
|
|||
|
|
border-radius: 100px;
|
|||
|
|
background-color: #c6c7cb;
|
|||
|
|
@include flex(row);
|
|||
|
|
align-items: center;
|
|||
|
|
justify-content: center;
|
|||
|
|
transform: scale(0.82);
|
|||
|
|
margin-left: 4px;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&__subfix-icon {
|
|||
|
|
margin-left: 4px;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&__prefix-icon {
|
|||
|
|
margin-right: 4px;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
</style>
|