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<!--
- SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
- SPDX-License-Identifier: AGPL-3.0-or-later
-->
<template>
<div class="files-list-drag-image">
<span class="files-list-drag-image__icon">
<span ref="previewImg" />
<FolderIcon v-if="isSingleFolder" />
<FileMultipleIcon v-else />
</span>
<span class="files-list-drag-image__name">{{ name }}</span>
</div>
</template>
<script lang="ts">
import { FileType, Node, formatFileSize } from '@nextcloud/files'
import Vue from 'vue'
import FileMultipleIcon from 'vue-material-design-icons/FileMultiple.vue'
import FolderIcon from 'vue-material-design-icons/Folder.vue'
import { getSummaryFor } from '../utils/fileUtils.ts'
export default Vue.extend({
name: 'DragAndDropPreview',
components: {
FileMultipleIcon,
FolderIcon,
},
data() {
return {
nodes: [] as Node[],
}
},
computed: {
isSingleNode() {
return this.nodes.length === 1
},
isSingleFolder() {
return this.isSingleNode
&& this.nodes[0].type === FileType.Folder
},
name() {
if (!this.size) {
return this.summary
}
return `${this.summary} – ${this.size}`
},
size() {
const totalSize = this.nodes.reduce((total, node) => total + node.size || 0, 0)
const size = parseInt(totalSize, 10) || 0
if (typeof size !== 'number' || size < 0) {
return null
}
return formatFileSize(size, true)
},
summary(): string {
if (this.isSingleNode) {
const node = this.nodes[0]
return node.attributes?.displayname || node.basename
}
return getSummaryFor(this.nodes)
},
},
methods: {
update(nodes: Node[]) {
this.nodes = nodes
this.$refs.previewImg.replaceChildren()
// Clone icon node from the list
nodes.slice(0, 3).forEach(node => {
const preview = document.querySelector(`[data-cy-files-list-row-fileid="${node.fileid}"] .files-list__row-icon img`)
if (preview) {
const previewElmt = this.$refs.previewImg as HTMLElement
previewElmt.appendChild(preview.parentNode.cloneNode(true))
}
})
this.$nextTick(() => {
this.$emit('loaded', this.$el)
})
},
},
})
</script>
<style lang="scss">
$size: 32px;
$stack-shift: 6px;
.files-list-drag-image {
position: absolute;
top: -9999px;
left: -9999px;
display: flex;
overflow: hidden;
align-items: center;
height: 44px;
padding: 6px 12px;
background: var(--color-main-background);
&__icon,
.files-list__row-icon {
display: flex;
overflow: hidden;
align-items: center;
justify-content: center;
width: 32px;
height: 32px;
border-radius: var(--border-radius);
}
&__icon {
overflow: visible;
margin-right: 12px;
img {
max-width: 100%;
max-height: 100%;
}
.material-design-icon {
color: var(--color-text-maxcontrast);
&.folder-icon {
color: var(--color-primary-element);
}
}
// Previews container
> span {
display: flex;
// Stack effect if more than one element
.files-list__row-icon + .files-list__row-icon {
margin-top: $stack-shift;
margin-left: $stack-shift - $size;
& + .files-list__row-icon {
margin-top: $stack-shift * 2;
}
}
// If we have manually clone the preview,
// let's hide any fallback icons
&:not(:empty) + * {
display: none;
}
}
}
&__name {
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
}
</style>
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