guangchao.xu | 070005a | 2020-12-07 09:56:40 +0800 | [diff] [blame] | 1 | <template> |
| 2 | <view class="u-char-box"> |
| 3 | <view class="u-char-flex"> |
| 4 | <input :disabled="disabledKeyboard" :value="valueModel" type="number" :focus="focus" :maxlength="maxlength" class="u-input" @input="getVal"/> |
| 5 | <view v-for="(item, index) in loopCharArr" :key="index"> |
| 6 | <view :class="[breathe && charArrLength == index ? 'u-breathe' : '', 'u-char-item', |
| 7 | charArrLength === index && mode == 'box' ? 'u-box-active' : '', |
| 8 | mode === 'box' ? 'u-box' : '']" :style="{ |
| 9 | fontWeight: bold ? 'bold' : 'normal', |
| 10 | fontSize: fontSize + 'rpx', |
| 11 | width: width + 'rpx', |
| 12 | height: width + 'rpx', |
| 13 | color: inactiveColor, |
| 14 | borderColor: charArrLength === index && mode == 'box' ? activeColor : inactiveColor |
| 15 | }"> |
| 16 | <view class="u-placeholder-line" :style="{ |
| 17 | display: charArrLength === index ? 'block' : 'none', |
| 18 | height: width * 0.5 +'rpx' |
| 19 | }" |
| 20 | v-if="mode !== 'middleLine'" |
| 21 | ></view> |
| 22 | <view v-if="mode === 'middleLine' && charArrLength <= index" :class="[breathe && charArrLength == index ? 'u-breathe' : '', charArrLength === index ? 'u-middle-line-active' : '']" |
| 23 | class="u-middle-line" :style="{height: bold ? '4px' : '2px', background: charArrLength === index ? activeColor : inactiveColor}"></view> |
| 24 | <view v-if="mode === 'bottomLine'" :class="[breathe && charArrLength == index ? 'u-breathe' : '', charArrLength === index ? 'u-buttom-line-active' : '']" |
| 25 | class="u-bottom-line" :style="{height: bold ? '4px' : '2px', background: charArrLength === index ? activeColor : inactiveColor}"></view> |
| 26 | <block v-if="!dotFill"> {{ charArr[index] ? charArr[index] : ''}}</block> |
| 27 | <block v-else> |
| 28 | <text class="u-dot">{{ charArr[index] ? '●' : ''}}</text> |
| 29 | </block> |
| 30 | </view> |
| 31 | </view> |
| 32 | </view> |
| 33 | </view> |
| 34 | </template> |
| 35 | |
| 36 | <script> |
| 37 | /** |
| 38 | * messageInput 验证码输入框 |
| 39 | * @description 该组件一般用于验证用户短信验证码的场景,也可以结合uView的键盘组件使用 |
| 40 | * @tutorial https://www.uviewui.com/components/messageInput.html |
| 41 | * @property {String Number} maxlength 输入字符个数(默认4) |
| 42 | * @property {Boolean} dot-fill 是否用圆点填充(默认false) |
| 43 | * @property {String} mode 模式选择,见上方"基本使用"说明(默认box) |
| 44 | * @property {String Number} value 预置值 |
| 45 | * @property {Boolean} breathe 是否开启呼吸效果,见上方说明(默认true) |
| 46 | * @property {Boolean} focus 是否自动获取焦点(默认false) |
| 47 | * @property {Boolean} bold 字体和输入横线是否加粗(默认true) |
| 48 | * @property {String Number} font-size 字体大小,单位rpx(默认60) |
| 49 | * @property {String} active-color 当前激活输入框的样式(默认#2979ff) |
| 50 | * @property {String} inactive-color 非激活输入框的样式,文字颜色同此值(默认#606266) |
| 51 | * @property {String | Number} width 输入框宽度,单位rpx,高等于宽(默认80) |
| 52 | * @property {Boolean} disabled-keyboard 禁止点击输入框唤起系统键盘(默认false) |
| 53 | * @event {Function} change 输入内容发生改变时触发,具体见官网说明 |
| 54 | * @event {Function} finish 输入字符个数达maxlength值时触发,见官网说明 |
| 55 | * @example <u-message-input mode="bottomLine"></u-message-input> |
| 56 | */ |
| 57 | export default { |
| 58 | name: "u-message-input", |
| 59 | props: { |
| 60 | // 最大输入长度 |
| 61 | maxlength: { |
| 62 | type: [Number, String], |
| 63 | default: 4 |
| 64 | }, |
| 65 | // 是否用圆点填充 |
| 66 | dotFill: { |
| 67 | type: Boolean, |
| 68 | default: false |
| 69 | }, |
| 70 | // 显示模式,box-盒子模式,bottomLine-横线在底部模式,middleLine-横线在中部模式 |
| 71 | mode: { |
| 72 | type: String, |
| 73 | default: "box" |
| 74 | }, |
| 75 | // 预置值 |
| 76 | value: { |
| 77 | type: [String, Number], |
| 78 | default: '' |
| 79 | }, |
| 80 | // 当前激活输入item,是否带有呼吸效果 |
| 81 | breathe: { |
| 82 | type: Boolean, |
| 83 | default: true |
| 84 | }, |
| 85 | // 是否自动获取焦点 |
| 86 | focus: { |
| 87 | type: Boolean, |
| 88 | default: false |
| 89 | }, |
| 90 | // 字体是否加粗 |
| 91 | bold: { |
| 92 | type: Boolean, |
| 93 | default: false |
| 94 | }, |
| 95 | // 字体大小 |
| 96 | fontSize: { |
| 97 | type: [String, Number], |
| 98 | default: 60 |
| 99 | }, |
| 100 | // 激活样式 |
| 101 | activeColor: { |
| 102 | type: String, |
| 103 | default: '#2979ff' |
| 104 | }, |
| 105 | // 未激活的样式 |
| 106 | inactiveColor: { |
| 107 | type: String, |
| 108 | default: '#606266' |
| 109 | }, |
| 110 | // 输入框的大小,单位rpx,宽等于高 |
| 111 | width: { |
| 112 | type: [Number, String], |
| 113 | default: '80' |
| 114 | }, |
| 115 | // 是否隐藏原生键盘,如果想用自定义键盘的话,需设置此参数为true |
| 116 | disabledKeyboard: { |
| 117 | type: Boolean, |
| 118 | default: false |
| 119 | } |
| 120 | }, |
| 121 | watch: { |
| 122 | // maxlength: { |
| 123 | // // 此值设置为true,会在组件加载后无需maxlength变化就会执行一次本监听函数,无需再created生命周期中处理 |
| 124 | // immediate: true, |
| 125 | // handler(val) { |
| 126 | // this.maxlength = Number(val); |
| 127 | // } |
| 128 | // }, |
| 129 | value: { |
| 130 | immediate: true, |
| 131 | handler(val) { |
| 132 | // 转为字符串 |
| 133 | val = String(val); |
| 134 | // 超出部分截掉 |
| 135 | this.valueModel = val.substring(0, this.maxlength); |
| 136 | } |
| 137 | }, |
| 138 | }, |
| 139 | data() { |
| 140 | return { |
| 141 | valueModel: "" |
| 142 | } |
| 143 | }, |
| 144 | computed: { |
| 145 | // 是否显示呼吸灯效果 |
| 146 | animationClass() { |
| 147 | return (index) => { |
| 148 | if (this.breathe && this.charArr.length == index) return 'u-breathe'; |
| 149 | else return ''; |
| 150 | } |
| 151 | }, |
| 152 | // 用于显示字符 |
| 153 | charArr() { |
| 154 | return this.valueModel.split(''); |
| 155 | }, |
| 156 | charArrLength() { |
| 157 | return this.charArr.length; |
| 158 | }, |
| 159 | // 根据长度,循环输入框的个数,因为头条小程序数值不能用于v-for |
| 160 | loopCharArr() { |
| 161 | return new Array(this.maxlength); |
| 162 | } |
| 163 | }, |
| 164 | methods: { |
| 165 | getVal(e) { |
| 166 | let { |
| 167 | value |
| 168 | } = e.detail |
| 169 | this.valueModel = value; |
| 170 | // 判断长度是否超出了maxlength值,理论上不会发生,因为input组件设置了maxlength属性值 |
| 171 | if (String(value).length > this.maxlength) return; |
| 172 | // 未达到maxlength之前,发送change事件,达到后发送finish事件 |
| 173 | this.$emit('change', value); |
| 174 | if (String(value).length == this.maxlength) { |
| 175 | this.$emit('finish', value); |
| 176 | } |
| 177 | } |
| 178 | } |
| 179 | } |
| 180 | </script> |
| 181 | |
| 182 | <style scoped lang="scss"> |
| 183 | @import "../../libs/css/style.components.scss"; |
| 184 | |
| 185 | @keyframes breathe { |
| 186 | 0% { |
| 187 | opacity: 0.3; |
| 188 | } |
| 189 | |
| 190 | 50% { |
| 191 | opacity: 1; |
| 192 | } |
| 193 | |
| 194 | 100% { |
| 195 | opacity: 0.3; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | .u-char-box { |
| 200 | text-align: center; |
| 201 | } |
| 202 | |
| 203 | .u-char-flex { |
| 204 | @include vue-flex; |
| 205 | justify-content: center; |
| 206 | flex-wrap: wrap; |
| 207 | position: relative; |
| 208 | } |
| 209 | |
| 210 | .u-input { |
| 211 | position: absolute; |
| 212 | top: 0; |
| 213 | left: -100%; |
| 214 | width: 200%; |
| 215 | height: 100%; |
| 216 | text-align: left; |
| 217 | z-index: 9; |
| 218 | opacity: 0; |
| 219 | background: none; |
| 220 | } |
| 221 | |
| 222 | .u-char-item { |
| 223 | position: relative; |
| 224 | width: 90rpx; |
| 225 | height: 90rpx; |
| 226 | margin: 10rpx 10rpx; |
| 227 | font-size: 60rpx; |
| 228 | font-weight: bold; |
| 229 | color: $u-main-color; |
| 230 | line-height: 90rpx; |
| 231 | @include vue-flex; |
| 232 | justify-content: center; |
| 233 | align-items: center; |
| 234 | } |
| 235 | |
| 236 | .u-middle-line { |
| 237 | border: none; |
| 238 | } |
| 239 | |
| 240 | .u-box { |
| 241 | box-sizing: border-box; |
| 242 | border: 2rpx solid #cccccc; |
| 243 | border-radius: 6rpx; |
| 244 | } |
| 245 | |
| 246 | .u-box-active { |
| 247 | overflow: hidden; |
| 248 | animation-timing-function: ease-in-out; |
| 249 | animation-duration: 1500ms; |
| 250 | animation-iteration-count: infinite; |
| 251 | animation-direction: alternate; |
| 252 | border: 2rpx solid $u-type-primary; |
| 253 | } |
| 254 | |
| 255 | .u-middle-line-active { |
| 256 | background: $u-type-primary; |
| 257 | } |
| 258 | |
| 259 | .u-breathe { |
| 260 | animation: breathe 2s infinite ease; |
| 261 | } |
| 262 | |
| 263 | .u-placeholder-line { |
| 264 | /* #ifndef APP-NVUE */ |
| 265 | display: none; |
| 266 | /* #endif */ |
| 267 | position: absolute; |
| 268 | left: 50%; |
| 269 | top: 50%; |
| 270 | transform: translate(-50%, -50%); |
| 271 | width: 2rpx; |
| 272 | height: 40rpx; |
| 273 | background: #333333; |
| 274 | animation: twinkling 1.5s infinite ease; |
| 275 | } |
| 276 | |
| 277 | .u-animation-breathe { |
| 278 | animation-name: breathe; |
| 279 | } |
| 280 | |
| 281 | .u-dot { |
| 282 | font-size: 34rpx; |
| 283 | line-height: 34rpx; |
| 284 | } |
| 285 | |
| 286 | .u-middle-line { |
| 287 | height: 4px; |
| 288 | background: #000000; |
| 289 | width: 80%; |
| 290 | position: absolute; |
| 291 | border-radius: 2px; |
| 292 | top: 50%; |
| 293 | left: 50%; |
| 294 | transform: translate(-50%, -50%); |
| 295 | } |
| 296 | |
| 297 | .u-buttom-line-active { |
| 298 | background: $u-type-primary; |
| 299 | } |
| 300 | |
| 301 | .u-bottom-line { |
| 302 | height: 4px; |
| 303 | background: #000000; |
| 304 | width: 80%; |
| 305 | position: absolute; |
| 306 | border-radius: 2px; |
| 307 | bottom: 0; |
| 308 | left: 50%; |
| 309 | transform: translate(-50%); |
| 310 | } |
| 311 | </style> |