| | |
| | | // 定义一个一定时间后自动成功的promise,让调用nextTick方法处,进入下一个then方法
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| | | const nextTick = () => new Promise(resolve => setTimeout(resolve, 1000 / 50))
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| | | // nvue动画模块实现细节抽离在外部文件
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| | | import animationMap from './nvue.ani-map.js'
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| | |
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| | | // #ifndef APP-NVUE
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| | | // 定义类名,通过给元素动态切换类名,赋予元素一定的css动画样式
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| | | const getClassNames = (name) => ({
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| | | enter: `u-${name}-enter u-${name}-enter-active`,
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| | | 'enter-to': `u-${name}-enter-to u-${name}-enter-active`,
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| | | leave: `u-${name}-leave u-${name}-leave-active`,
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| | | 'leave-to': `u-${name}-leave-to u-${name}-leave-active`
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| | | })
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| | | // #endif
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| | |
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| | | // #ifdef APP-NVUE
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| | | // 引入nvue(weex)的animation动画模块,文档见:
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| | | // https://weex.apache.org/zh/docs/modules/animation.html#transition
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| | | const animation = uni.requireNativePlugin('animation')
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| | | const getStyle = (name) => animationMap[name]
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| | | // #endif
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| | |
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| | | export default {
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| | | methods: {
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| | | // 组件被点击发出事件
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| | | clickHandler() {
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| | | this.$emit('click')
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| | | },
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| | | // #ifndef APP-NVUE
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| | | // vue版本的组件进场处理
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| | | vueEnter() {
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| | | // 动画进入时的类名
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| | | const classNames = getClassNames(this.mode)
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| | | // 定义状态和发出动画进入前事件
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| | | this.status = 'enter'
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| | | this.$emit('beforeEnter')
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| | | this.inited = true
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| | | this.display = true
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| | | this.classes = classNames.enter
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| | | this.$nextTick(async () => {
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| | | // #ifdef H5
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| | | await uni.$u.sleep(20)
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| | | // #endif
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| | | // 标识动画尚未结束
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| | | this.$emit('enter')
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| | | this.transitionEnded = false
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| | | // 组件动画进入后触发的事件
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| | | this.$emit('afterEnter')
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| | | // 赋予组件enter-to类名
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| | | this.classes = classNames['enter-to']
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| | | })
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| | | },
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| | | // 动画离场处理
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| | | vueLeave() {
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| | | // 如果不是展示状态,无需执行逻辑
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| | | if (!this.display) return
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| | | const classNames = getClassNames(this.mode)
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| | | // 标记离开状态和发出事件
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| | | this.status = 'leave'
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| | | this.$emit('beforeLeave')
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| | | // 获得类名
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| | | this.classes = classNames.leave
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| | |
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| | | this.$nextTick(() => {
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| | | // 动画正在离场的状态
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| | | this.transitionEnded = false
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| | | this.$emit('leave')
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| | | // 组件执行动画,到了执行的执行时间后,执行一些额外处理
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| | | setTimeout(this.onTransitionEnd, this.duration)
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| | | this.classes = classNames['leave-to']
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| | | })
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| | | },
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| | | // #endif
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| | | // #ifdef APP-NVUE
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| | | // nvue版本动画进场
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| | | nvueEnter() {
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| | | // 获得样式的名称
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| | | const currentStyle = getStyle(this.mode)
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| | | // 组件动画状态和发出事件
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| | | this.status = 'enter'
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| | | this.$emit('beforeEnter')
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| | | // 展示生成组件元素
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| | | this.inited = true
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| | | this.display = true
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| | | // 在nvue安卓上,由于渲染速度慢,在弹窗,键盘,日历等组件中,渲染其中的内容需要时间
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| | | // 导致出现弹窗卡顿,这里让其一开始为透明状态,等一定时间渲染完成后,再让其隐藏起来,再让其按正常逻辑出现
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| | | this.viewStyle = {
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| | | opacity: 0
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| | | }
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| | | // 等待弹窗内容渲染完成
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| | | this.$nextTick(() => {
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| | | // 合并样式
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| | | this.viewStyle = currentStyle.enter
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| | | Promise.resolve()
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| | | .then(nextTick)
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| | | .then(() => {
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| | | // 组件开始进入前的事件
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| | | this.$emit('enter')
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| | | // nvue的transition动画模块需要通过ref调用组件,注意此处的ref不同于vue的this.$refs['u-transition']用法
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| | | animation.transition(this.$refs['u-transition'].ref, {
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| | | styles: currentStyle['enter-to'],
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| | | duration: this.duration,
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| | | timingFunction: this.timingFunction,
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| | | needLayout: false,
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| | | delay: 0
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| | | }, () => {
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| | | // 动画执行完毕,发出事件
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| | | this.$emit('afterEnter')
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| | | })
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| | | })
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| | | .catch(() => {})
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| | | })
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| | | },
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| | | nvueLeave() {
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| | | if (!this.display) {
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| | | return
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| | | }
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| | | const currentStyle = getStyle(this.mode)
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| | | // 定义状态和事件
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| | | this.status = 'leave'
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| | | this.$emit('beforeLeave')
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| | | // 合并样式
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| | | this.viewStyle = currentStyle.leave
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| | | // 放到promise中处理执行过程
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| | | Promise.resolve()
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| | | .then(nextTick) // 等待几十ms
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| | | .then(() => {
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| | | this.transitionEnded = false
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| | | // 动画正在离场的状态
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| | | this.$emit('leave')
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| | | animation.transition(this.$refs['u-transition'].ref, {
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| | | styles: currentStyle['leave-to'],
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| | | duration: this.duration,
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| | | timingFunction: this.timingFunction,
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| | | needLayout: false,
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| | | delay: 0
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| | | }, () => {
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| | | this.onTransitionEnd()
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| | | })
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| | | })
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| | | .catch(() => {})
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| | | },
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| | | // #endif
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| | | // 完成过渡后触发
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| | | onTransitionEnd() {
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| | | // 如果已经是结束的状态,无需再处理
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| | | if (this.transitionEnded) return
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| | | this.transitionEnded = true
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| | | // 发出组件动画执行后的事件
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| | | this.$emit(this.status === 'leave' ? 'afterLeave' : 'afterEnter')
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| | | if (!this.show && this.display) {
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| | | this.display = false
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| | | this.inited = false
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| | | }
|
| | | }
|
| | | }
|
| | | }
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