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refactor(gui): load the cell only when it is in the viewport 

Signed-off-by: Pranav C <pranavxc@gmail.com>
pull/5392/head
Pranav C 2 years ago
parent
86b729ad7e
commit
526d406621
2 changed files with 60 additions and 33 deletions
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  1. 4
      packages/nc-gui/components/cell/SingleSelect.vue
  2. 89
      packages/nc-gui/components/smartsheet/Cell.vue

4
packages/nc-gui/components/cell/SingleSelect.vue
Unescape View File

@ -246,10 +246,6 @@ useEventListener(document, 'click', handleClose, true)
const selectedOpt = computed(() => {
return options.value.find((o) => o.value === vModel.value)
})
onMounted(() => {
console.log('mounted')
})
</script>
<template>

89
packages/nc-gui/components/smartsheet/Cell.vue
Unescape View File

@ -151,10 +151,39 @@ const onContextmenu = (e: MouseEvent) => {
e.stopPropagation()
}
}
const intersected = ref(false)
let intersectionObserver = $ref<IntersectionObserver>()
const elementToObserve = $ref<Element>()
// load the cell only when it is in the viewport
function initIntersectionObserver() {
intersectionObserver = new IntersectionObserver((entries) => {
entries.forEach((entry) => {
if (entry.isIntersecting) {
intersected.value = true
}
})
})
}
// observe the cell when it is mounted
onMounted(() => {
initIntersectionObserver()
intersectionObserver?.observe(elementToObserve!)
})
// disconnect the observer when the cell is unmounted
onUnmounted(() => {
intersectionObserver?.disconnect()
})
</script>
<template>
<div
ref="elementToObserve"
class="nc-cell w-full h-full relative"
:class="[
`nc-cell-${(column?.uidt || 'default').toLowerCase()}`,
@ -167,35 +196,37 @@ const onContextmenu = (e: MouseEvent) => {
@contextmenu="onContextmenu"
>
<template v-if="column">
<LazyCellTextArea v-if="isTextArea(column)" v-model="vModel" />
<LazyCellGeoData v-else-if="isGeoData(column)" v-model="vModel" />
<LazyCellCheckbox v-else-if="isBoolean(column, abstractType)" v-model="vModel" />
<LazyCellAttachment v-else-if="isAttachment(column)" v-model="vModel" :row-index="props.rowIndex" />
<LazyCellSingleSelect v-else-if="isSingleSelect(column)" v-model="vModel" :row-index="props.rowIndex" />
<LazyCellMultiSelect v-else-if="isMultiSelect(column)" v-model="vModel" :row-index="props.rowIndex" />
<LazyCellDatePicker v-else-if="isDate(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellYearPicker v-else-if="isYear(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellDateTimePicker v-else-if="isDateTime(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellTimePicker v-else-if="isTime(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellRating v-else-if="isRating(column)" v-model="vModel" />
<LazyCellDuration v-else-if="isDuration(column)" v-model="vModel" />
<LazyCellEmail v-else-if="isEmail(column)" v-model="vModel" />
<LazyCellUrl v-else-if="isURL(column)" v-model="vModel" />
<LazyCellPhoneNumber v-else-if="isPhoneNumber(column)" v-model="vModel" />
<LazyCellPercent v-else-if="isPercent(column)" v-model="vModel" />
<LazyCellCurrency v-else-if="isCurrency(column)" v-model="vModel" @save="emit('save')" />
<LazyCellDecimal v-else-if="isDecimal(column)" v-model="vModel" />
<LazyCellInteger v-else-if="isInt(column, abstractType)" v-model="vModel" />
<LazyCellFloat v-else-if="isFloat(column, abstractType)" v-model="vModel" />
<LazyCellText v-else-if="isString(column, abstractType)" v-model="vModel" />
<LazyCellJson v-else-if="isJSON(column)" v-model="vModel" />
<LazyCellText v-else v-model="vModel" />
<div
v-if="(isLocked || (isPublic && readOnly && !isForm) || isSystemColumn(column)) && !isAttachment(column)"
class="nc-locked-overlay"
@click.stop.prevent
@dblclick.stop.prevent
/>
<template v-if="intersected">
<LazyCellTextArea v-if="isTextArea(column)" v-model="vModel" />
<LazyCellGeoData v-else-if="isGeoData(column)" v-model="vModel" />
<LazyCellCheckbox v-else-if="isBoolean(column, abstractType)" v-model="vModel" />
<LazyCellAttachment v-else-if="isAttachment(column)" v-model="vModel" :row-index="props.rowIndex" />
<LazyCellSingleSelect v-else-if="isSingleSelect(column)" v-model="vModel" :row-index="props.rowIndex" />
<LazyCellMultiSelect v-else-if="isMultiSelect(column)" v-model="vModel" :row-index="props.rowIndex" />
<LazyCellDatePicker v-else-if="isDate(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellYearPicker v-else-if="isYear(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellDateTimePicker v-else-if="isDateTime(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellTimePicker v-else-if="isTime(column, abstractType)" v-model="vModel" :is-pk="isPrimaryKey(column)" />
<LazyCellRating v-else-if="isRating(column)" v-model="vModel" />
<LazyCellDuration v-else-if="isDuration(column)" v-model="vModel" />
<LazyCellEmail v-else-if="isEmail(column)" v-model="vModel" />
<LazyCellUrl v-else-if="isURL(column)" v-model="vModel" />
<LazyCellPhoneNumber v-else-if="isPhoneNumber(column)" v-model="vModel" />
<LazyCellPercent v-else-if="isPercent(column)" v-model="vModel" />
<LazyCellCurrency v-else-if="isCurrency(column)" v-model="vModel" @save="emit('save')" />
<LazyCellDecimal v-else-if="isDecimal(column)" v-model="vModel" />
<LazyCellInteger v-else-if="isInt(column, abstractType)" v-model="vModel" />
<LazyCellFloat v-else-if="isFloat(column, abstractType)" v-model="vModel" />
<LazyCellText v-else-if="isString(column, abstractType)" v-model="vModel" />
<LazyCellJson v-else-if="isJSON(column)" v-model="vModel" />
<LazyCellText v-else v-model="vModel" />
<div
v-if="(isLocked || (isPublic && readOnly && !isForm) || isSystemColumn(column)) && !isAttachment(column)"
class="nc-locked-overlay"
@click.stop.prevent
@dblclick.stop.prevent
/>
</template>
</template>
</div>
</template>

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