40 lines
1.7 KiB
Plaintext
40 lines
1.7 KiB
Plaintext
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import { ref, onMounted, onUnmounted } from 'vue'
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import { onResize } from '@dcloudio/uni-app'
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export type PageLayout = {
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pageStyle: () => string,
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contentStyle: (offset: number, minimum: boolean) => string,
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statusStyle: (offset: number) => string,
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bottomStyle: (padding: number) => string
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}
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// 原生渲染不支持 vh/calc，统一以窗口尺寸计算，并随旋转更新。
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export function usePageLayout(): PageLayout {
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const windowInfo = ref(uni.getWindowInfo())
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const refresh = () => { windowInfo.value = uni.getWindowInfo() }
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onMounted(() => refresh())
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// #ifdef APP
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onResize((_options) => { refresh() })
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// #endif
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// #ifndef APP
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const handleResize = (_options: OnWindowResizeCallbackResult) => { refresh() }
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uni.onWindowResize(handleResize)
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onUnmounted(() => { uni.offWindowResize(handleResize) })
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// #endif
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const rpx = (value: number): number => value * windowInfo.value.windowWidth / 750
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const status = (): number => windowInfo.value.statusBarHeight ?? 0
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const pageStyle = (): string => 'min-height:' + windowInfo.value.windowHeight + 'px;'
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const contentStyle = (offset: number, minimum: boolean): string => {
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// #ifdef WEB
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return (minimum ? 'min-height:' : 'height:') + 'calc(100vh - ' + status() + 'px - ' + offset + 'rpx);'
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// #endif
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// #ifndef WEB
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const height = Math.max(0, windowInfo.value.windowHeight - status() - rpx(offset))
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return (minimum ? 'min-height:' : 'height:') + height + 'px;'
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// #endif
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}
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const statusStyle = (offset: number): string => 'height:' + (status() + rpx(offset)) + 'px;'
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const bottomStyle = (padding: number): string => 'padding-bottom:' + (rpx(padding) + (windowInfo.value.safeAreaInsets?.bottom ?? 0)) + 'px;'
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return { pageStyle, contentStyle, statusStyle, bottomStyle }
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}
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