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358 lines
9.6 KiB
358 lines
9.6 KiB
1 year ago
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<template>
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<view class="u-search" @tap="clickHandler" :style="{
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margin: margin,
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}">
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<view
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class="u-content"
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:style="{
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backgroundColor: bgColor,
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borderRadius: shape == 'round' ? '100rpx' : '10rpx',
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border: borderStyle,
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height: height + 'rpx'
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}"
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>
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<view class="u-icon-wrap">
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<u-icon class="u-clear-icon" :size="30" :name="searchIcon" :color="searchIconColor ? searchIconColor : color"></u-icon>
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</view>
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<input
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confirm-type="search"
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@blur="blur"
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:value="valueCom"
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@confirm="search"
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@input="inputChange"
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:disabled="disabled"
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@focus="getFocus"
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:focus="focus"
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:maxlength="maxlength"
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placeholder-class="u-placeholder-class"
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:placeholder="placeholder"
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:placeholder-style="`color: ${placeholderColor}`"
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class="u-input"
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type="text"
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:style="[{
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textAlign: inputAlign,
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color: color,
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backgroundColor: bgColor,
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}, inputStyle]"
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/>
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<view class="u-close-wrap" v-if="keyword && clearabled && focused" @tap="clear">
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<u-icon class="u-clear-icon" name="close-circle-fill" size="34" color="#c0c4cc"></u-icon>
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</view>
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</view>
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<view :style="[actionStyle]" class="u-action"
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:class="[showActionBtn || show ? 'u-action-active' : '']"
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@tap.stop.prevent="custom"
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>{{ actionText }}</view>
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</view>
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</template>
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<script>
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/**
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* search 搜索框
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* @description 搜索组件，集成了常见搜索框所需功能，用户可以一键引入，开箱即用。
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* @tutorial https://www.uviewui.com/components/search.html
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* @property {String} shape 搜索框形状，round-圆形，square-方形（默认round）
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* @property {String} bg-color 搜索框背景颜色（默认#f2f2f2）
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* @property {String} border-color 边框颜色，配置了颜色，才会有边框
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* @property {String} placeholder 占位文字内容（默认“请输入关键字”）
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* @property {Boolean} clearabled 是否启用清除控件（默认true）
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* @property {Boolean} focus 是否自动获得焦点（默认false）
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* @property {Boolean} show-action 是否显示右侧控件（默认true）
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* @property {String} action-text 右侧控件文字（默认“搜索”）
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* @property {Object} action-style 右侧控件的样式，对象形式
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* @property {String} input-align 输入框内容水平对齐方式（默认left）
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* @property {Object} input-style 自定义输入框样式，对象形式
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* @property {Boolean} disabled 是否启用输入框（默认false）
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* @property {String} search-icon-color 搜索图标的颜色，默认同输入框字体颜色
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* @property {String} color 输入框字体颜色（默认#606266）
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* @property {String} placeholder-color placeholder的颜色（默认#909399）
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* @property {String} search-icon 输入框左边的图标，可以为uView图标名称或图片路径
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* @property {String} margin 组件与其他上下左右元素之间的距离，带单位的字符串形式，如"30rpx"
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* @property {Boolean} animation 是否开启动画，见上方说明（默认false）
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* @property {String} value 输入框初始值
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* @property {String | Number} maxlength 输入框最大能输入的长度，-1为不限制长度
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* @property {Boolean} input-style input输入框的样式，可以定义文字颜色，大小等，对象形式
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* @property {String | Number} height 输入框高度，单位rpx（默认64）
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* @event {Function} change 输入框内容发生变化时触发
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* @event {Function} search 用户确定搜索时触发，用户按回车键，或者手机键盘右下角的"搜索"键时触发
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* @event {Function} custom 用户点击右侧控件时触发
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* @event {Function} clear 用户点击清除按钮时触发
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* @example <u-search placeholder="日照香炉生紫烟" v-model="keyword"></u-search>
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*/
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export default {
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name: "u-search",
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emits: ["update:modelValue", "input", "change", "search", "custom", "clear", "focus", "blur"],
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props: {
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// 输入框的初始化内容
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value: {
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type: String,
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default: ''
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},
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modelValue: {
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type: String,
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default: ''
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},
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// 搜索框形状，round-圆形，square-方形
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shape: {
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type: String,
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default: 'round'
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},
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// 搜索框背景色，默认值#f2f2f2
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bgColor: {
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type: String,
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default: '#f2f2f2'
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},
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// 占位提示文字
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placeholder: {
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type: String,
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default: '请输入关键字'
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},
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// 是否启用清除控件
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clearabled: {
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type: Boolean,
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default: true
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},
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// 是否自动聚焦
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focus: {
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type: Boolean,
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default: false
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},
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// 是否在搜索框右侧显示取消按钮
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showAction: {
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type: Boolean,
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default: true
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},
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// 右边控件的样式
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actionStyle: {
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type: Object,
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default() {
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return {};
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}
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},
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// 取消按钮文字
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actionText: {
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type: String,
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default: '搜索'
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},
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// 输入框内容对齐方式，可选值为 left|center|right
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inputAlign: {
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type: String,
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default: 'left'
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},
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// 是否启用输入框
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disabled: {
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type: Boolean,
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default: false
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},
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// 开启showAction时，是否在input获取焦点时才显示
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animation: {
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type: Boolean,
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default: false
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},
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// 边框颜色，只要配置了颜色，才会有边框
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borderColor: {
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type: String,
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default: 'none'
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},
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// 搜索框高度，单位rpx
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height: {
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type: [Number, String],
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default: 64
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},
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// input输入框的样式，可以定义文字颜色，大小等，对象形式
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inputStyle: {
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type: Object,
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default() {
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return {}
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}
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},
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// 输入框最大能输入的长度，-1为不限制长度(来自uniapp文档)
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maxlength: {
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type: [Number, String],
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default: '-1'
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},
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// 搜索图标的颜色，默认同输入框字体颜色
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searchIconColor: {
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type: String,
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default: ''
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},
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// 输入框字体颜色
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color: {
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type: String,
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default: '#606266'
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},
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// placeholder的颜色
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placeholderColor: {
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type: String,
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default: '#909399'
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},
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// 组件与其他上下左右元素之间的距离，带单位的字符串形式，如"30rpx"、"30rpx 20rpx"等写法
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margin: {
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type: String,
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default: '0'
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},
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// 左边输入框的图标，可以为uView图标名称或图片路径
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searchIcon: {
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type: String,
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default: 'search'
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}
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},
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data() {
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return {
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keyword: '',
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showClear: false, // 是否显示右边的清除图标
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show: false,
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// 标记input当前状态是否处于聚焦中，如果是，才会显示右侧的清除控件
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focused: this.focus
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// 绑定输入框的值
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// inputValue: this.value
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};
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},
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watch: {
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keyword(nVal) {
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// 双向绑定值，让v-model绑定的值双向变化
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this.$emit('input', nVal);
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this.$emit("update:modelValue", nVal);
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// 触发change事件，事件效果和v-model双向绑定的效果一样，让用户多一个选择
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this.$emit('change', nVal);
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},
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valueCom: {
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immediate: true,
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handler(nVal) {
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this.keyword = nVal;
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}
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}
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},
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computed: {
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valueCom() {
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// #ifndef VUE3
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return this.value;
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// #endif
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// #ifdef VUE3
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return this.modelValue;
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// #endif
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},
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showActionBtn() {
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if (!this.animation && this.showAction) return true;
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else return false;
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},
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// 样式，根据用户传入的颜色值生成，如果不传入，默认为none
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borderStyle() {
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if (this.borderColor) return `1px solid ${this.borderColor}`;
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else return 'none';
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},
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},
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methods: {
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// 目前HX2.6.9 v-model双向绑定无效，故监听input事件获取输入框内容的变化
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inputChange(e) {
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this.keyword = e.detail.value;
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},
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// 清空输入
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// 也可以作为用户通过this.$refs形式调用清空输入框内容
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clear() {
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this.keyword = '';
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// 延后发出事件，避免在父组件监听clear事件时，value为更新前的值(不为空)
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this.$nextTick(() => {
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this.$emit('clear');
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})
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},
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// 确定搜索
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search(e) {
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this.$emit('search', e.detail.value);
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try{
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// 收起键盘
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uni.hideKeyboard();
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}catch(e){}
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},
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// 点击右边自定义按钮的事件
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custom() {
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this.$emit('custom', this.keyword);
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try{
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// 收起键盘
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uni.hideKeyboard();
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}catch(e){}
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},
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// 获取焦点
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getFocus() {
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this.focused = true;
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// 开启右侧搜索按钮展开的动画效果
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if (this.animation && this.showAction) this.show = true;
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this.$emit('focus', this.keyword);
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},
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// 失去焦点
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blur() {
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// 最开始使用的是监听图标@touchstart事件，自从hx2.8.4后，此方法在微信小程序出错
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// 这里改为监听点击事件，手点击清除图标时，同时也发生了@blur事件，导致图标消失而无法点击，这里做一个延时
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setTimeout(() => {
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this.focused = false;
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}, 100)
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this.show = false;
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this.$emit('blur', this.keyword);
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},
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// 点击搜索框，只有disabled=true时才发出事件，因为禁止了输入，意味着是想跳转真正的搜索页
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clickHandler() {
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if(this.disabled) this.$emit('click');
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}
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}
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};
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</script>
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<style lang="scss" scoped>
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@import "../../libs/css/style.components.scss";
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.u-search {
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@include vue-flex;
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align-items: center;
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flex: 1;
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}
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.u-content {
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@include vue-flex;
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align-items: center;
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padding: 0 18rpx;
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flex: 1;
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}
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.u-clear-icon {
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@include vue-flex;
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align-items: center;
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}
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.u-input {
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flex: 1;
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font-size: 28rpx;
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line-height: 1;
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margin: 0 10rpx;
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color: $u-tips-color;
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}
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.u-close-wrap {
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width: 40rpx;
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height: 100%;
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@include vue-flex;
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align-items: center;
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justify-content: center;
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border-radius: 50%;
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}
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.u-placeholder-class {
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color: $u-tips-color;
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}
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.u-action {
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font-size: 28rpx;
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color: $u-main-color;
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width: 0;
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overflow: hidden;
|
||
|
|
transition: all 0.3s;
|
||
|
|
white-space: nowrap;
|
||
|
|
text-align: center;
|
||
|
|
}
|
||
|
|
|
||
|
|
.u-action-active {
|
||
|
|
width: 80rpx;
|
||
|
|
margin-left: 10rpx;
|
||
|
|
}
|
||
|
|
</style>
|