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| <template>
| <view style="display: none;">
| <slot />
| </view>
| </template>
| <script>
| const scrolldoneEvent = {
| type: 'scrolldone',
| target: {
| id: '',
| offsetLeft: 0,
| offsetTop: 0,
| dataset: {}
| },
| currentTarget: {
| id: '',
| offsetLeft: 0,
| offsetTop: 0,
| dataset: {}
| },
| detail: {}
| }
|
| export default {
| props: {
| backgroundTextStyle: {
| type: String,
| default: 'dark',
| validator (value) {
| return ['dark', 'light'].indexOf(value) !== -1
| }
| },
| backgroundColor: {
| type: String,
| default: '#ffffff'
| },
| backgroundColorTop: {
| type: String,
| default: '#ffffff'
| },
| backgroundColorBottom: {
| type: String,
| default: '#ffffff'
| },
| scrollTop: {
| type: String,
| default: ''
| },
| scrollDuration: {
| type: Number,
| default: 300
| },
| pageStyle: {
| type: String,
| default: ''
| },
| enablePullDownRefresh: {
| type: [Boolean, String],
| default: false
| },
| rootFontSize: {
| type: String,
| default: ''
| }
| },
| created () {
| const page = getCurrentPages()[0]
| this.$pageVm = page.$vm || page
| // event
| // h5 暂不支持生命周期 onResize,补充后，可以移除该条件编译
| // #ifdef H5
| uni.onWindowResize(evt => {
| this.$emit('resize', evt)
| })
| // #endif
| // #ifndef H5
| this.$pageVm.$on('hook:onResize', evt => {
| this.$emit('resize', evt)
| })
| // #endif
| // 父节点一定是 page
| this.$pageVm.$on('hook:onPageScroll', evt => {
| this.$emit('scroll', evt)
| })
|
| // #ifdef APP-PLUS
| this._currentWebview = page.$getAppWebview()
| if (this.enablePullDownRefresh) {
| this.setPullDownRefresh(this._currentWebview, true)
| }
| this.$watch('enablePullDownRefresh', (val) => {
| this.setPullDownRefresh(this._currentWebview, val)
| })
| // #endif
|
| // props
|
| this.$watch('backgroundTextStyle', () => {
| this.setBackgroundTextStyle()
| })
| this.$watch(() => [
| this.rootFontSize,
| this.pageStyle
| ], () => {
| this.setPageMeta()
| })
| this.$watch(() => [
| this.backgroundColor,
| this.backgroundColorTop,
| this.backgroundColorBottom
| ], () => {
| this.setBackgroundColor()
| })
| this.$watch(() => [
| this.scrollTop,
| this.scrollDuration
| ], () => {
| this.pageScrollTo()
| })
| },
| beforeMount () {
| this.setBackgroundColor()
| if (this.rootFontSize || this.pageStyle) {
| this.setPageMeta()
| }
| this.backgroundTextStyle && this.setBackgroundTextStyle()
| },
| mounted () {
| this.scrollTop && this.pageScrollTo()
| },
| methods: {
| setPullDownRefresh (webview, enabled) {
| webview.setStyle({
| pullToRefresh: {
| support: enabled,
| style: plus.os.name === 'Android' ? 'circle' : 'default'
| }
| })
| },
| setPageMeta () {
| // h5 和 app-plus 设置 rootFontSize
| // #ifdef H5 || APP-PLUS
| uni.setPageMeta({
| pageStyle: this.pageStyle,
| rootFontSize: this.rootFontSize
| })
| // #endif
| },
| setBackgroundTextStyle () {
| // TODO h5 app-plus 暂不支持
| // #ifdef MP
| uni.setBackgroundTextStyle && uni.setBackgroundTextStyle({
| textStyle: this.backgroundTextStyle
| })
| // #endif
| },
| setBackgroundColor () {
| // TODO h5 app-plus 暂不支持
| // #ifdef MP
| uni.setBackgroundColor && uni.setBackgroundColor({
| backgroundColor: this.backgroundColor,
| backgroundColorTop: this.backgroundColorTop,
| backgroundColorBottom: this.backgroundColorBottom
| })
| // #endif
| },
| pageScrollTo () {
| let scrollTop = String(this.scrollTop)
| if (scrollTop.indexOf('rpx') !== -1) {
| scrollTop = uni.upx2px(scrollTop.replace('rpx', ''))
| }
| scrollTop = parseFloat(scrollTop)
| if (isNaN(scrollTop)) {
| return
| }
| const pageScrollDone = (evt) => {
| if (evt.scrollTop === scrollTop) {
| this.$pageVm.$off('hook:onPageScroll', pageScrollDone)
| this.$emit('scrolldone', scrolldoneEvent)
| }
| }
| uni.pageScrollTo({
| scrollTop,
| duration: this.scrollDuration,
| success: () => {
| this.$pageVm.$on('hook:onPageScroll', pageScrollDone)
| }
| })
| }
| }
| }
| </script>
|
|
