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<!-- ldgallery - A static generator which turns a collection of tagged
-- pictures into a searchable web gallery.
--
-- Copyright (C) 2019-2022 Guillaume FOUET
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as
-- published by the Free Software Foundation, either version 3 of the
-- License, or (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
-->
<template>
<div :class="{ [$style.preload]: loading }">
<!-- Can't use img loading="lazy" yet because @loadstart doesn't work on Chromium -->
<!-- Also it loads the picture before scroll init (too early) -->
<VLazyImage
v-if="thumbnailResourceUrl"
:src="thumbnailResourceUrl"
:style="pictureStyle"
:title="item.title"
@intersect="loading = true"
@load="loading = false"
/>
<div
v-else
class="flex-column flex-center"
:class="$style.thumbnailOther"
>
<div>
<fa-icon
:icon="icon"
size="4x"
/>
</div>
<div v-text="item.title" />
</div>
</div>
</template>
<script setup lang="ts">
import { Item } from '@/@types/gallery';
import { useNavigation } from '@/services/navigation';
import { useItemResource } from '@/services/ui/ldItemResourceUrl';
import VLazyImage from 'v-lazy-image';
import { computed, PropType, ref, toRef } from 'vue';
const props = defineProps({
item: { type: Object as PropType<Item>, required: true },
});
const navigation = useNavigation();
const loading = ref(false);
const { thumbnailResourceUrl } = useItemResource(toRef(props, 'item'));
const pictureStyle = computed(() => {
const resolution = props.item.thumbnail?.resolution ?? { width: 1, height: 1 };
return { width: `${resolution.width}px`, height: `${resolution.height}px` };
});
const icon = computed(() => navigation.getIcon(props.item));
</script>
<style lang="scss" module>
@import "~@/assets/scss/theme";
.thumbnailOther {
width: $thumbnail-other-size;
height: $thumbnail-other-size;
padding-top: $body-line-height * 1em;
text-align: center;
word-break: break-word;
overflow: hidden;
> div {
min-height: $body-line-height * 3em;
}
}
.preload {
animation: preloadAnimation 1s infinite ease-in-out alternate;
}
@keyframes preloadAnimation {
from {
background-color: $content-bgcolor;
}
to {
background-color: $skeleton-color;
}
}
</style>
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