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323 changes: 162 additions & 161 deletions
323
uni_modules/uview-ui/components/u-count-down/u-count-down.vue
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,162 +1,163 @@ | ||
| <template> | ||
| <view class="u-count-down"> | ||
| <slot> | ||
| <text class="u-count-down__text">{{ formattedTime }}</text> | ||
| </slot> | ||
| </view> | ||
| </template> | ||
|
|
||
| <script> | ||
| import props from './props.js'; | ||
| import { | ||
| isSameSecond, | ||
| parseFormat, | ||
| parseTimeData | ||
| } from './utils'; | ||
| /** | ||
| * u-count-down 倒计时 | ||
| * @description 该组件一般使用于某个活动的截止时间上，通过数字的变化，给用户明确的时间感受，提示用户进行某一个行为操作。 | ||
| * @tutorial https://uviewui.com/components/countDown.html | ||
| * @property {String | Number} time 倒计时时长，单位ms （默认 0 ） | ||
| * @property {String} format 时间格式，DD-日，HH-时，mm-分，ss-秒，SSS-毫秒 （默认 'HH:mm:ss' ） | ||
| * @property {Boolean} autoStart 是否自动开始倒计时 （默认 true ） | ||
| * @property {Boolean} millisecond 是否展示毫秒倒计时 （默认 false ） | ||
| * @event {Function} finish 倒计时结束时触发 | ||
| * @event {Function} change 倒计时变化时触发 | ||
| * @event {Function} start 开始倒计时 | ||
| * @event {Function} pause 暂停倒计时 | ||
| * @event {Function} reset 重设倒计时，若 auto-start 为 true，重设后会自动开始倒计时 | ||
| * @example <u-count-down :time="time"></u-count-down> | ||
| */ | ||
| export default { | ||
| name: 'u-count-down', | ||
| mixins: [uni.$u.mpMixin, uni.$u.mixin, props], | ||
| data() { | ||
| return { | ||
| timer: null, | ||
| // 各单位(天，时，分等)剩余时间 | ||
| timeData: parseTimeData(0), | ||
| // 格式化后的时间，如"03:23:21" | ||
| formattedTime: '0', | ||
| // 倒计时是否正在进行中 | ||
| runing: false, | ||
| endTime: 0, // 结束的毫秒时间戳 | ||
| remainTime: 0, // 剩余的毫秒时间 | ||
| } | ||
| }, | ||
| watch: { | ||
| time(n) { | ||
| this.reset() | ||
| } | ||
| }, | ||
| mounted() { | ||
| this.init() | ||
| }, | ||
| methods: { | ||
| init() { | ||
| this.reset() | ||
| }, | ||
| // 开始倒计时 | ||
| start() { | ||
| if (this.runing) return | ||
| // 标识为进行中 | ||
| this.runing = true | ||
| // 结束时间戳 = 此刻时间戳 + 剩余的时间 | ||
| this.endTime = Date.now() + this.remainTime | ||
| this.toTick() | ||
| }, | ||
| // 根据是否展示毫秒，执行不同操作函数 | ||
| toTick() { | ||
| if (this.millisecond) { | ||
| this.microTick() | ||
| } else { | ||
| this.macroTick() | ||
| } | ||
| }, | ||
| macroTick() { | ||
| this.clearTimeout() | ||
| // 每隔一定时间，更新一遍定时器的值 | ||
| // 同时此定时器的作用也能带来毫秒级的更新 | ||
| this.timer = setTimeout(() => { | ||
| // 获取剩余时间 | ||
| const remain = this.getRemainTime() | ||
| // 重设剩余时间 | ||
| if (!isSameSecond(remain, this.remainTime) || remain === 0) { | ||
| this.setRemainTime(remain) | ||
| } | ||
| // 如果剩余时间不为0，则继续检查更新倒计时 | ||
| if (this.remainTime !== 0) { | ||
| this.macroTick() | ||
| } | ||
| }, 30) | ||
| }, | ||
| microTick() { | ||
| this.clearTimeout() | ||
| this.timer = setTimeout(() => { | ||
| this.setRemainTime(this.getRemainTime()) | ||
| if (this.remainTime !== 0) { | ||
| this.microTick() | ||
| } | ||
| }, 30) | ||
| }, | ||
| // 获取剩余的时间 | ||
| getRemainTime() { | ||
| // 取最大值，防止出现小于0的剩余时间值 | ||
| return Math.max(this.endTime - Date.now(), 0) | ||
| }, | ||
| // 设置剩余的时间 | ||
| setRemainTime(remain) { | ||
| this.remainTime = remain | ||
| // 根据剩余的毫秒时间，得出该有天，小时，分钟等的值，返回一个对象 | ||
| const timeData = parseTimeData(remain) | ||
| // 如果有传入slot内容，则发出change事件 | ||
| if(this.$slots.default || this.$slots.$default) { | ||
| this.$emit('change', timeData) | ||
| } | ||
| // 得出格式化后的时间 | ||
| this.formattedTime = parseFormat(this.format, timeData) | ||
| // 如果时间已到，停止倒计时 | ||
| if (remain <= 0) { | ||
| this.pause() | ||
| this.$emit('finish') | ||
| } | ||
| }, | ||
| // 重置倒计时 | ||
| reset() { | ||
| this.pause() | ||
| this.remainTime = this.time | ||
| this.setRemainTime(this.remainTime) | ||
| if (this.autoStart) { | ||
| this.start() | ||
| } | ||
| }, | ||
| // 暂停倒计时 | ||
| pause() { | ||
| this.runing = false; | ||
| this.clearTimeout() | ||
| }, | ||
| // 清空定时器 | ||
| clearTimeout() { | ||
| clearTimeout(this.timer) | ||
| this.timer = null | ||
| } | ||
| }, | ||
| beforeDestroy() { | ||
| this.clearTimeout() | ||
| } | ||
| } | ||
| </script> | ||
|
|
||
| <style lang="scss" scoped> | ||
| @import "../../libs/css/components.scss"; | ||
| $u-count-down-text-color:$u-content-color !default; | ||
| $u-count-down-text-font-size:15px !default; | ||
| $u-count-down-text-line-height:22px !default; | ||
| .u-count-down { | ||
| &__text { | ||
| color:$u-count-down-text-color; | ||
| font-size:$u-count-down-text-font-size; | ||
| line-height:$u-count-down-text-line-height; | ||
| } | ||
| } | ||
| <template> | ||
| <view class="u-count-down"> | ||
| <slot> | ||
| <text class="u-count-down__text">{{ formattedTime }}</text> | ||
| </slot> | ||
| </view> | ||
| </template> | ||
|
|
||
| <script> | ||
| import props from './props.js'; | ||
| import { | ||
| isSameSecond, | ||
| parseFormat, | ||
| parseTimeData | ||
| } from './utils'; | ||
| /** | ||
| * u-count-down 倒计时 | ||
| * @description 该组件一般使用于某个活动的截止时间上，通过数字的变化，给用户明确的时间感受，提示用户进行某一个行为操作。 | ||
| * @tutorial https://uviewui.com/components/countDown.html | ||
| * @property {String | Number} time 倒计时时长，单位ms （默认 0 ） | ||
| * @property {String} format 时间格式，DD-日，HH-时，mm-分，ss-秒，SSS-毫秒 （默认 'HH:mm:ss' ） | ||
| * @property {Boolean} autoStart 是否自动开始倒计时 （默认 true ） | ||
| * @property {Boolean} millisecond 是否展示毫秒倒计时 （默认 false ） | ||
| * @event {Function} finish 倒计时结束时触发 | ||
| * @event {Function} change 倒计时变化时触发 | ||
| * @event {Function} start 开始倒计时 | ||
| * @event {Function} pause 暂停倒计时 | ||
| * @event {Function} reset 重设倒计时，若 auto-start 为 true，重设后会自动开始倒计时 | ||
| * @example <u-count-down :time="time"></u-count-down> | ||
| */ | ||
| export default { | ||
| name: 'u-count-down', | ||
| mixins: [uni.$u.mpMixin, uni.$u.mixin, props], | ||
| data() { | ||
| return { | ||
| timer: null, | ||
| // 各单位(天，时，分等)剩余时间 | ||
| timeData: parseTimeData(0), | ||
| // 格式化后的时间，如"03:23:21" | ||
| formattedTime: '0', | ||
| // 倒计时是否正在进行中 | ||
| runing: false, | ||
| endTime: 0, // 结束的毫秒时间戳 | ||
| remainTime: 0, // 剩余的毫秒时间 | ||
| } | ||
| }, | ||
| watch: { | ||
| time(n) { | ||
| this.reset() | ||
| } | ||
| }, | ||
| mounted() { | ||
| this.init() | ||
| }, | ||
| methods: { | ||
| init() { | ||
| this.reset() | ||
| }, | ||
| // 开始倒计时 | ||
| start() { | ||
| if (this.runing) return | ||
| // 标识为进行中 | ||
| this.runing = true | ||
| // 结束时间戳 = 此刻时间戳 + 剩余的时间 | ||
| this.endTime = Date.now() + this.remainTime | ||
| this.toTick() | ||
| }, | ||
| // 根据是否展示毫秒，执行不同操作函数 | ||
| toTick() { | ||
| if (this.millisecond) { | ||
| this.microTick() | ||
| } else { | ||
| this.macroTick() | ||
| } | ||
| }, | ||
| macroTick() { | ||
| this.clearTimeout() | ||
| // 每隔一定时间，更新一遍定时器的值 | ||
| // 同时此定时器的作用也能带来毫秒级的更新 | ||
| this.timer = setTimeout(() => { | ||
| // 获取剩余时间 | ||
| const remain = this.getRemainTime() | ||
| // 重设剩余时间 | ||
| if (!isSameSecond(remain, this.remainTime) || remain === 0) { | ||
| this.setRemainTime(remain) | ||
| } | ||
| // 如果剩余时间不为0，则继续检查更新倒计时 | ||
| if (this.remainTime !== 0) { | ||
| this.macroTick() | ||
| } | ||
| }, 30) | ||
| }, | ||
| microTick() { | ||
| this.clearTimeout() | ||
| this.timer = setTimeout(() => { | ||
| this.setRemainTime(this.getRemainTime()) | ||
| if (this.remainTime !== 0) { | ||
| this.microTick() | ||
| } | ||
| }, 50) | ||
| }, | ||
| // 获取剩余的时间 | ||
| getRemainTime() { | ||
| // 取最大值，防止出现小于0的剩余时间值 | ||
| return Math.max(this.endTime - Date.now(), 0) | ||
| }, | ||
| // 设置剩余的时间 | ||
| setRemainTime(remain) { | ||
| this.remainTime = remain | ||
| // 根据剩余的毫秒时间，得出该有天，小时，分钟等的值，返回一个对象 | ||
| const timeData = parseTimeData(remain) | ||
| this.$emit('change', timeData) | ||
| // 得出格式化后的时间 | ||
| this.formattedTime = parseFormat(this.format, timeData) | ||
| // 如果时间已到，停止倒计时 | ||
| if (remain <= 0) { | ||
| this.pause() | ||
| this.$emit('finish') | ||
| } | ||
| }, | ||
| // 重置倒计时 | ||
| reset() { | ||
| this.pause() | ||
| this.remainTime = this.time | ||
| this.setRemainTime(this.remainTime) | ||
| if (this.autoStart) { | ||
| this.start() | ||
| } | ||
| }, | ||
| // 暂停倒计时 | ||
| pause() { | ||
| this.runing = false; | ||
| this.clearTimeout() | ||
| }, | ||
| // 清空定时器 | ||
| clearTimeout() { | ||
| clearTimeout(this.timer) | ||
| this.timer = null | ||
| } | ||
| }, | ||
| beforeDestroy() { | ||
| this.clearTimeout() | ||
| } | ||
| } | ||
| </script> | ||
|
|
||
| <style | ||
| lang="scss" | ||
| scoped | ||
| > | ||
| @import "../../libs/css/components.scss"; | ||
| $u-count-down-text-color:$u-content-color !default; | ||
| $u-count-down-text-font-size:15px !default; | ||
| $u-count-down-text-line-height:22px !default; | ||
| .u-count-down { | ||
| &__text { | ||
| color: $u-count-down-text-color; | ||
| font-size: $u-count-down-text-font-size; | ||
| line-height: $u-count-down-text-line-height; | ||
| } | ||
| } | ||
| </style> |
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