| <template> | 
|     <view class="u-search" @tap="clickHandler" :style="{ | 
|         margin: margin, | 
|     }"> | 
|         <view | 
|             class="u-content" | 
|             :style="{ | 
|                 backgroundColor: bgColor, | 
|                 borderRadius: shape == 'round' ? '100rpx' : '10rpx', | 
|                 border: borderStyle, | 
|                 height: height + 'rpx' | 
|             }" | 
|         > | 
|             <view class="u-icon-wrap"> | 
|                 <u-icon class="u-clear-icon" :size="30" :name="searchIcon" :color="searchIconColor ? searchIconColor : color"></u-icon> | 
|             </view> | 
|             <input | 
|                 confirm-type="search" | 
|                 @blur="blur" | 
|                 :value="value" | 
|                 @confirm="search" | 
|                 @input="inputChange" | 
|                 :disabled="disabled" | 
|                 @focus="getFocus" | 
|                 :focus="focus" | 
|                 :maxlength="maxlength" | 
|                 placeholder-class="u-placeholder-class" | 
|                 :placeholder="placeholder" | 
|                 :placeholder-style="`color: ${placeholderColor}`" | 
|                 class="u-input" | 
|                 type="text" | 
|                 :style="[{ | 
|                     textAlign: inputAlign, | 
|                     color: color, | 
|                     backgroundColor: bgColor, | 
|                 }, inputStyle]" | 
|             /> | 
|             <view class="u-close-wrap" v-if="keyword && clearabled && focused" @tap="clear"> | 
|                 <u-icon class="u-clear-icon" name="close-circle-fill" size="34" color="#c0c4cc"></u-icon> | 
|             </view> | 
|         </view> | 
|         <view :style="[actionStyle]" class="u-action"  | 
|             :class="[showActionBtn || show ? 'u-action-active' : '']"  | 
|             @tap.stop.prevent="custom" | 
|         >{{ actionText }}</view> | 
|     </view> | 
| </template> | 
|   | 
| <script> | 
| /** | 
|  * search 搜索框 | 
|  * @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。 | 
|  * @tutorial https://www.uviewui.com/components/search.html | 
|  * @property {String} shape 搜索框形状,round-圆形,square-方形(默认round) | 
|  * @property {String} bg-color 搜索框背景颜色(默认#f2f2f2) | 
|  * @property {String} border-color 边框颜色,配置了颜色,才会有边框 | 
|  * @property {String} placeholder 占位文字内容(默认“请输入关键字”) | 
|  * @property {Boolean} clearabled 是否启用清除控件(默认true) | 
|  * @property {Boolean} focus 是否自动获得焦点(默认false) | 
|  * @property {Boolean} show-action 是否显示右侧控件(默认true) | 
|  * @property {String} action-text 右侧控件文字(默认“搜索”) | 
|  * @property {Object} action-style 右侧控件的样式,对象形式 | 
|  * @property {String} input-align 输入框内容水平对齐方式(默认left) | 
|  * @property {Object} input-style 自定义输入框样式,对象形式 | 
|  * @property {Boolean} disabled 是否启用输入框(默认false) | 
|  * @property {String} search-icon-color 搜索图标的颜色,默认同输入框字体颜色 | 
|  * @property {String} color 输入框字体颜色(默认#606266) | 
|  * @property {String} placeholder-color placeholder的颜色(默认#909399) | 
|  * @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 | 
|  * @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" | 
|  * @property {Boolean} animation 是否开启动画,见上方说明(默认false) | 
|  * @property {String} value 输入框初始值 | 
|  * @property {String | Number} maxlength 输入框最大能输入的长度,-1为不限制长度 | 
|  * @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 | 
|  * @property {String | Number} height 输入框高度,单位rpx(默认64) | 
|  * @event {Function} change 输入框内容发生变化时触发 | 
|  * @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 | 
|  * @event {Function} custom 用户点击右侧控件时触发 | 
|  * @event {Function} clear 用户点击清除按钮时触发 | 
|  * @example <u-search placeholder="日照香炉生紫烟" v-model="keyword"></u-search> | 
|  */ | 
| export default { | 
|     name: "u-search", | 
|     props: { | 
|         // 搜索框形状,round-圆形,square-方形 | 
|         shape: { | 
|             type: String, | 
|             default: 'round' | 
|         }, | 
|         // 搜索框背景色,默认值#f2f2f2 | 
|         bgColor: { | 
|             type: String, | 
|             default: '#f2f2f2' | 
|         }, | 
|         // 占位提示文字 | 
|         placeholder: { | 
|             type: String, | 
|             default: '请输入关键字' | 
|         }, | 
|         // 是否启用清除控件 | 
|         clearabled: { | 
|             type: Boolean, | 
|             default: true | 
|         }, | 
|         // 是否自动聚焦 | 
|         focus: { | 
|             type: Boolean, | 
|             default: false | 
|         }, | 
|         // 是否在搜索框右侧显示取消按钮 | 
|         showAction: { | 
|             type: Boolean, | 
|             default: true | 
|         }, | 
|         // 右边控件的样式 | 
|         actionStyle: { | 
|             type: Object, | 
|             default() { | 
|                 return {}; | 
|             } | 
|         }, | 
|         // 取消按钮文字 | 
|         actionText: { | 
|             type: String, | 
|             default: '搜索' | 
|         }, | 
|         // 输入框内容对齐方式,可选值为 left|center|right | 
|         inputAlign: { | 
|             type: String, | 
|             default: 'left' | 
|         }, | 
|         // 是否启用输入框 | 
|         disabled: { | 
|             type: Boolean, | 
|             default: false | 
|         }, | 
|         // 开启showAction时,是否在input获取焦点时才显示 | 
|         animation: { | 
|             type: Boolean, | 
|             default: false | 
|         }, | 
|         // 边框颜色,只要配置了颜色,才会有边框 | 
|         borderColor: { | 
|             type: String, | 
|             default: 'none' | 
|         }, | 
|         // 输入框的初始化内容 | 
|         value: { | 
|             type: String, | 
|             default: '' | 
|         }, | 
|         // 搜索框高度,单位rpx | 
|         height: { | 
|             type: [Number, String], | 
|             default: 64 | 
|         }, | 
|         // input输入框的样式,可以定义文字颜色,大小等,对象形式 | 
|         inputStyle: { | 
|             type: Object, | 
|             default() { | 
|                 return {} | 
|             } | 
|         }, | 
|         // 输入框最大能输入的长度,-1为不限制长度(来自uniapp文档) | 
|         maxlength: { | 
|             type: [Number, String], | 
|             default: '-1' | 
|         }, | 
|         // 搜索图标的颜色,默认同输入框字体颜色 | 
|         searchIconColor: { | 
|             type: String, | 
|             default: '' | 
|         }, | 
|         // 输入框字体颜色 | 
|         color: { | 
|             type: String, | 
|             default: '#606266' | 
|         }, | 
|         // placeholder的颜色 | 
|         placeholderColor: { | 
|             type: String, | 
|             default: '#909399' | 
|         }, | 
|         // 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 | 
|         margin: { | 
|             type: String, | 
|             default: '0' | 
|         }, | 
|         // 左边输入框的图标,可以为uView图标名称或图片路径 | 
|         searchIcon: { | 
|             type: String, | 
|             default: 'search' | 
|         } | 
|     }, | 
|     data() { | 
|         return { | 
|             keyword: '', | 
|             showClear: false, // 是否显示右边的清除图标 | 
|             show: false, | 
|             // 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 | 
|             focused: this.focus | 
|             // 绑定输入框的值 | 
|             // inputValue: this.value | 
|         }; | 
|     }, | 
|     watch: { | 
|         keyword(nVal) { | 
|             // 双向绑定值,让v-model绑定的值双向变化 | 
|             this.$emit('input', nVal); | 
|             // 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 | 
|             this.$emit('change', nVal); | 
|         }, | 
|         value: { | 
|             immediate: true, | 
|             handler(nVal) { | 
|                 this.keyword = nVal; | 
|             } | 
|         } | 
|     }, | 
|     computed: { | 
|         showActionBtn() { | 
|             if (!this.animation && this.showAction) return true; | 
|             else return false; | 
|         }, | 
|         // 样式,根据用户传入的颜色值生成,如果不传入,默认为none | 
|         borderStyle() { | 
|             if (this.borderColor) return `1px solid ${this.borderColor}`; | 
|             else return 'none'; | 
|         }, | 
|     }, | 
|     methods: { | 
|         // 目前HX2.6.9 v-model双向绑定无效,故监听input事件获取输入框内容的变化 | 
|         inputChange(e) { | 
|             this.keyword = e.detail.value; | 
|         }, | 
|         // 清空输入 | 
|         // 也可以作为用户通过this.$refs形式调用清空输入框内容 | 
|         clear() { | 
|             this.keyword = ''; | 
|             // 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) | 
|             this.$nextTick(() => { | 
|                 this.$emit('clear'); | 
|             }) | 
|         }, | 
|         // 确定搜索 | 
|         search(e) { | 
|             this.$emit('search', e.detail.value); | 
|             try{ | 
|                 // 收起键盘 | 
|                 uni.hideKeyboard(); | 
|             }catch(e){} | 
|         }, | 
|         // 点击右边自定义按钮的事件 | 
|         custom() { | 
|             this.$emit('custom', this.keyword); | 
|             try{ | 
|                 // 收起键盘 | 
|                 uni.hideKeyboard(); | 
|             }catch(e){} | 
|         }, | 
|         // 获取焦点 | 
|         getFocus() { | 
|             this.focused = true; | 
|             // 开启右侧搜索按钮展开的动画效果 | 
|             if (this.animation && this.showAction) this.show = true; | 
|             this.$emit('focus', this.keyword); | 
|         }, | 
|         // 失去焦点 | 
|         blur() { | 
|             // 最开始使用的是监听图标@touchstart事件,自从hx2.8.4后,此方法在微信小程序出错 | 
|             // 这里改为监听点击事件,手点击清除图标时,同时也发生了@blur事件,导致图标消失而无法点击,这里做一个延时 | 
|             setTimeout(() => { | 
|                 this.focused = false; | 
|             }, 100) | 
|             this.show = false; | 
|             this.$emit('blur', this.keyword); | 
|         }, | 
|         // 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 | 
|         clickHandler() { | 
|             if(this.disabled) this.$emit('click'); | 
|         } | 
|     } | 
| }; | 
| </script> | 
|   | 
| <style lang="scss" scoped> | 
| @import "../../libs/css/style.components.scss"; | 
|   | 
| .u-search { | 
|     @include vue-flex; | 
|     align-items: center; | 
|     flex: 1; | 
| } | 
|   | 
| .u-content { | 
|     @include vue-flex; | 
|     align-items: center; | 
|     padding: 0 18rpx; | 
|     flex: 1; | 
| } | 
|   | 
| .u-clear-icon { | 
|     @include vue-flex; | 
|     align-items: center; | 
| } | 
|   | 
| .u-input { | 
|     flex: 1; | 
|     font-size: 28rpx; | 
|     line-height: 1; | 
|     margin: 0 10rpx; | 
|     color: $u-tips-color; | 
| } | 
|   | 
| .u-close-wrap { | 
|     width: 40rpx; | 
|     height: 100%; | 
|     @include vue-flex; | 
|     align-items: center; | 
|     justify-content: center; | 
|     border-radius: 50%; | 
| } | 
|   | 
| .u-placeholder-class { | 
|     color: $u-tips-color; | 
| } | 
|   | 
| .u-action { | 
|     font-size: 28rpx; | 
|     color: $u-main-color; | 
|     width: 0; | 
|     overflow: hidden; | 
|     transition: all 0.3s; | 
|     white-space: nowrap; | 
|     text-align: center; | 
| } | 
|   | 
| .u-action-active { | 
|     width: 80rpx; | 
|     margin-left: 10rpx; | 
| } | 
| </style> |