elk/components/modal/ModalDialog.vue

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<script lang="ts" setup>
import { useFocusTrap } from '@vueuse/integrations/useFocusTrap'
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export interface Props {
/**
* level of depth
*
* @default 100
*/
zIndex?: number
/**
* whether to allow close dialog by clicking mask layer
*
* @default true
*/
closeByMask?: boolean
/**
* use v-if, destroy all the internal elements after closed
*
* @default true
*/
useVIf?: boolean
/**
* keep the dialog opened even when in other views
*
* @default false
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*/
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keepAlive?: boolean
/**
* The aria-labelledby id for the dialog.
*/
dialogLabelledBy?: string
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}
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const props = withDefaults(defineProps<Props>(), {
zIndex: 100,
closeByMask: true,
useVIf: true,
keepAlive: false,
})
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const emit = defineEmits<{
/** v-model dialog visibility */
(event: 'close',): void
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}>()
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const { modelValue: visible } = defineModel<{
/** v-model dislog visibility */
modelValue: boolean
}>()
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defineOptions({
inheritAttrs: false,
})
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const deactivated = useDeactivated()
const route = useRoute()
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/** scrollable HTML element */
const elDialogMain = ref<HTMLDivElement>()
const elDialogRoot = ref<HTMLDivElement>()
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const { activate } = useFocusTrap(elDialogRoot, {
immediate: false,
allowOutsideClick: true,
clickOutsideDeactivates: true,
escapeDeactivates: true,
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preventScroll: true,
returnFocusOnDeactivate: true,
})
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defineExpose({
elDialogRoot,
elDialogMain,
})
/** close the dialog */
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function close() {
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visible.value = false
emit('close')
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}
function clickMask() {
if (props.closeByMask)
close()
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}
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const routePath = ref(route.path)
watch(visible, (value) => {
if (value)
routePath.value = route.path
})
const notInCurrentPage = computed(() => deactivated.value || routePath.value !== route.path)
watch(notInCurrentPage, (value) => {
if (props.keepAlive)
return
if (value)
close()
})
// controls the state of v-if.
// when useVIf is toggled, v-if has the same state as modelValue, otherwise v-if is true
const isVIf = computed(() => {
return props.useVIf
? visible.value
: true
})
// controls the state of v-show.
// when useVIf is toggled, v-show is true, otherwise it has the same state as modelValue
const isVShow = computed(() => {
return !props.useVIf
? visible.value
: true
})
function bindTypeToAny($attrs: any) {
return $attrs as any
}
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function trapFocusDialog() {
if (isVShow.value)
nextTick().then(() => activate())
}
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useEventListener('keydown', (e: KeyboardEvent) => {
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if (!visible.value)
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return
if (e.key === 'Escape') {
close()
e.preventDefault()
}
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})
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</script>
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<template>
<Teleport to="body">
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<!-- Dialog component -->
<Transition name="dialog-visible" @transitionend="trapFocusDialog">
<div
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v-if="isVIf"
v-show="isVShow"
ref="elDialogRoot"
aria-modal="true"
:aria-labelledby="dialogLabelledBy"
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:style="{
'z-index': zIndex,
}"
fixed inset-0 of-y-auto scrollbar-hide overscroll-none
>
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<!-- The style `scrollbar-hide overscroll-none overflow-y-scroll` and `h="[calc(100%+0.5px)]"` is used to implement scroll locking, -->
<!-- corresponding to issue: #106, so please don't remove it. -->
<!-- Mask layer: blur -->
<div class="dialog-mask" absolute inset-0 z-0 bg-transparent opacity-100 backdrop-filter backdrop-blur-sm touch-none />
<!-- Mask layer: dimming -->
<div class="dialog-mask" absolute inset-0 z-0 bg-black opacity-48 touch-none h="[calc(100%+0.5px)]" @click="clickMask" />
<!-- Dialog container -->
<div class="p-safe-area" absolute inset-0 z-1 pointer-events-none opacity-100 flex>
<div flex-1 flex items-center justify-center p-4>
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<!-- We use `class` here to make v-bind being able to be override them -->
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<div
ref="elDialogMain"
class="dialog-main rounded shadow-lg pointer-events-auto isolate bg-base border-base border-1px border-solid w-full max-h-full of-y-auto overscroll-contain touch-pan-y touch-pan-x"
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v-bind="bindTypeToAny($attrs)"
>
<slot />
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</div>
</div>
</div>
</div>
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</Transition>
</Teleport>
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</template>
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<style lang="postcss" scoped>
.dialog-visible-enter-active,
.dialog-visible-leave-active {
transition-duration: 0.25s;
.dialog-mask {
transition: opacity 0.25s ease;
}
.dialog-main {
transition: opacity 0.25s ease, transform 0.25s ease;
}
}
.dialog-visible-enter-from,
.dialog-visible-leave-to {
.dialog-mask {
opacity: 0;
}
.dialog-main {
transform: translateY(50px);
opacity: 0;
}
}
.p-safe-area {
padding-top: env(safe-area-inset-top);
padding-right: env(safe-area-inset-right);
padding-bottom: env(safe-area-inset-bottom);
padding-left: env(safe-area-inset-left);
}
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</style>