55 lines
1.7 KiB
Vue
55 lines
1.7 KiB
Vue
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<script setup lang="ts">
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import type { RenderContext } from '@slidev/types'
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import { useElementVisibility } from '@vueuse/core'
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import { computed, ref } from 'vue'
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import { useNav } from '../composables/useNav'
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import { useSlideContext } from '../context'
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type Context = 'main' | 'visible' | 'print' | RenderContext
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const props = defineProps<{
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context: Context | Context[]
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}>()
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const { context } = props
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const target = ref(null)
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const targetVisible = useElementVisibility(target)
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// When context has `visible`, we need to wrap the content with a div to track the visibility
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const needsDomWrapper = Array.isArray(context) ? context.includes('visible') : context === 'visible'
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const { $renderContext: currentContext } = useSlideContext()
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const { isPrintMode } = useNav()
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const shouldRender = computed(() => {
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const anyContext = Array.isArray(context) ? context.some(contextMatch) : contextMatch(context)
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const allConditions = Array.isArray(context) ? context.every(conditionsMatch) : conditionsMatch(context)
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return anyContext && allConditions
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})
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function contextMatch(context: Context) {
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if (context === currentContext?.value)
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return true
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if (context === 'main' && (currentContext?.value === 'slide' || currentContext?.value === 'presenter'))
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return true
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if (context === 'visible')
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return true
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if (context === 'print' && isPrintMode.value)
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return true
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return false
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}
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function conditionsMatch(context: Context) {
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if (context === 'visible')
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return targetVisible.value
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return true
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}
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</script>
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<template>
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<div v-if="needsDomWrapper" ref="target">
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<slot v-if="shouldRender" />
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<slot v-else name="fallback" />
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</div>
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<slot v-else-if="shouldRender" />
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<slot v-else name="fallback" />
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</template>
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