import Attachment from '../attachment/attachment.vue' import { sumBy } from 'lodash' const Gallery = { props: [ 'attachments', 'limitRows', 'descriptions', 'limit', 'nsfw', 'setMedia', 'size', 'editable', 'removeAttachment', 'shiftUpAttachment', 'shiftDnAttachment', 'editAttachment', 'grid' ], data () { return { sizes: {}, hidingLong: true } }, components: { Attachment }, computed: { rows () { if (!this.attachments) { return [] } const attachments = this.limit > 0 ? this.attachments.slice(0, this.limit) : this.attachments if (this.size === 'hide') { return attachments.map(item => ({ minimal: true, items: [item] })) } const rows = this.grid ? [{ grid: true, items: attachments }] : attachments.reduce((acc, attachment, i) => { if (attachment.mimetype.includes('audio')) { return [...acc, { audio: true, items: [attachment] }, { items: [] }] } if (!( attachment.mimetype.includes('image') || attachment.mimetype.includes('video') || attachment.mimetype.includes('flash') )) { return [...acc, { minimal: true, items: [attachment] }, { items: [] }] } const maxPerRow = 3 const attachmentsRemaining = this.attachments.length - i + 1 const currentRow = acc[acc.length - 1].items currentRow.push(attachment) if (currentRow.length >= maxPerRow && attachmentsRemaining > maxPerRow) { return [...acc, { items: [] }] } else { return acc } }, [{ items: [] }]).filter(_ => _.items.length > 0) return rows }, attachmentsDimensionalScore () { return this.rows.reduce((acc, row) => { let size = 0 if (row.minimal) { size += 1 / 8 } else if (row.audio) { size += 1 / 4 } else { size += 1 / (row.items.length + 0.6) } return acc + size }, 0) }, tooManyAttachments () { if (this.editable || this.size === 'small') { return false } else if (this.size === 'hide') { return this.attachments.length > 8 } else { return this.attachmentsDimensionalScore > 1 } } }, methods: { onNaturalSizeLoad ({ id, width, height }) { this.$set(this.sizes, id, { width, height }) }, rowStyle (row) { if (row.audio) { return { 'padding-bottom': '25%' } // fixed reduced height for audio } else if (!row.minimal && !row.grid) { return { 'padding-bottom': `${(100 / (row.items.length + 0.6))}%` } } }, itemStyle (id, row) { const total = sumBy(row, item => this.getAspectRatio(item.id)) return { flex: `${this.getAspectRatio(id) / total} 1 0%` } }, getAspectRatio (id) { const size = this.sizes[id] return size ? size.width / size.height : 1 }, toggleHidingLong (event) { this.hidingLong = event }, openGallery () { this.$store.dispatch('setMedia', this.attachments) this.$store.dispatch('setCurrentMedia', this.attachments[0]) }, onMedia () { this.$store.dispatch('setMedia', this.attachments) } } } export default Gallery