PPT/src/views/Screen/ScreenSlide.vue

<template>
<!-- {
      width: viewportSize + 'px',
      height: viewportSize * viewportRatio + 'px',
      transform: `scale(${iframeScale})`,
    } -->
  <div 
    class="screen-slide"
    :style="iframeScale"
  >
    <div class="background" :style="{ ...backgroundStyle }"></div>
    <ScreenElement
      v-for="(element, index) in slide.elements"
      :key="element.id"
      :elementInfo="element"
      :elementIndex="index + 1"
      :animationIndex="animationIndex"
      :turnSlideToId="turnSlideToId"
      :manualExitFullscreen="manualExitFullscreen"
      :is-visible="isVisible"
    />
  </div>
</template>

<script lang="ts" setup>
import { computed, provide } from 'vue'
import { storeToRefs } from 'pinia'
import { useSlidesStore } from '@/store'
import { ElementTypes, type Slide } from '@/types/slides'
import { injectKeySlideId } from '@/types/injectKey'
import useSlideBackgroundStyle from '@/hooks/useSlideBackgroundStyle'

import ScreenElement from './ScreenElement.vue'

const props = defineProps<{
  slide: Slide
  scale: number
  animationIndex: number
  turnSlideToId: (id: string) => void
  manualExitFullscreen: () => void
  isVisible: boolean
}>()

const { viewportRatio, viewportSize } = storeToRefs(useSlidesStore())

const background = computed(() => props.slide.background)
const { backgroundStyle } = useSlideBackgroundStyle(background)

const slideId = computed(() => props.slide.id)
provide(injectKeySlideId, slideId)

// 判断是否包含指定类型的iframe界面
const hasIframe = computed(() => {
  return props.slide.elements.some(element => 
    element.type === ElementTypes.FRAME && 
    [72, 73, 75, 76].includes(element.toolType as number)
  )
})

// 计算scale：如果是iframe界面且scale大于1就按1，否则按原scale
const iframeScale = computed(() => {
  if (hasIframe.value) {
    // return Math.min(props.scale, 1)
    //return props.scale;
    return {
      width: '100%',
      height: '100%',
      transform: `scale(1)`,
    }

  }
  return {
      width: viewportSize + 'px',
      height: viewportSize * viewportRatio + 'px',
      transform: `scale(${props.scale})`,
  }
})
</script>

<style lang="scss" scoped>
.screen-slide {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
  overflow: hidden;
}
.background {
  width: 100%;
  height: 100%;
  background-position: center;
  position: absolute;
}
</style>