feat(files): add Viewer Files ressource handler

apps/files/src/reference-files.js → apps/files/src/reference-files.ts

@@ -33,16 +33,17 @@ Vue.mixin({
 	},
 })
 
-registerWidget('file', (el, { richObjectType, richObject, accessible }) => {
+registerWidget('file', (el, { richObjectType, richObject, accessible, interactive }) => {
 	const Widget = Vue.extend(FileWidget)
 	new Widget({
 		propsData: {
 			richObjectType,
 			richObject,
 			accessible,
+			interactive,
 		},
 	}).$mount(el)
-})
+}, { hasInteractiveView: true })
 
 registerCustomPickerElement('files', (el, { providerId, accessible }) => {
 	const Element = Vue.extend(FileReferencePickerElement)

apps/files/src/views/ReferenceFileWidget.vue

@@ -21,50 +21,155 @@
 
 <template>
 	<div v-if="!accessible" class="widget-file widget-file--no-access">
-		<div class="widget-file--image widget-file--image--icon icon-folder" />
-		<div class="widget-file--details">
-			<p class="widget-file--title">
+		<span class="widget-file__image widget-file__image--icon">
+			<FolderIcon v-if="isFolder" :size="88" />
+			<FileIcon v-else :size="88" />
+		</span>
+		<span class="widget-file__details">
+			<p class="widget-file__title">
 				{{ t('files', 'File cannot be accessed') }}
 			</p>
-			<p class="widget-file--description">
+			<p class="widget-file__description">
 				{{ t('files', 'The file could not be found or you do not have permissions to view it. Ask the sender to share it.') }}
 			</p>
-		</div>
+		</span>
 	</div>
+
+	<!-- Live preview if a handler is available -->
+	<component :is="viewerHandler.component"
+		v-else-if="interactive && viewerHandler && !failedViewer"
+		:active="false /* prevent video from autoplaying */"
+		:can-swipe="false"
+		:can-zoom="false"
+		:is-embedded="true"
+		v-bind="viewerFile"
+		:file-list="[viewerFile]"
+		:is-full-screen="false"
+		:is-sidebar-shown="false"
+		class="widget-file widget-file--interactive"
+		@error="failedViewer = true" />
+
+	<!-- The file is accessible -->
 	<a v-else
-		class="widget-file"
+		class="widget-file widget-file--link"
 		:href="richObject.link"
-		@click.prevent="navigate">
-		<div class="widget-file--image" :class="filePreviewClass" :style="filePreview" />
-		<div class="widget-file--details">
-			<p class="widget-file--title">{{ richObject.name }}</p>
-			<p class="widget-file--description">{{ fileSize }}<br>{{ fileMtime }}</p>
-			<p class="widget-file--link">{{ filePath }}</p>
-		</div>
+		target="_blank"
+		@click="navigate">
+		<span class="widget-file__image" :class="filePreviewClass" :style="filePreviewStyle">
+			<template v-if="!previewUrl">
+				<FolderIcon v-if="isFolder" :size="88" />
+				<FileIcon v-else :size="88" />
+			</template>
+		</span>
+		<span class="widget-file__details">
+			<p class="widget-file__title">{{ richObject.name }}</p>
+			<p class="widget-file__description">{{ fileSize }}<br>{{ fileMtime }}</p>
+			<p class="widget-file__link">{{ filePath }}</p>
+		</span>
 	</a>
 </template>
-<script>
-import { generateUrl } from '@nextcloud/router'
+
+<script lang="ts">
+import { defineComponent, type Component, type PropType } from 'vue'
+import { generateRemoteUrl, generateUrl } from '@nextcloud/router'
+import { getCurrentUser } from '@nextcloud/auth'
+import { getFilePickerBuilder } from '@nextcloud/dialogs'
+import { Node } from '@nextcloud/files'
+import FileIcon from 'vue-material-design-icons/File.vue'
+import FolderIcon from 'vue-material-design-icons/Folder.vue'
 import path from 'path'
 
-export default {
+// see lib/private/Collaboration/Reference/File/FileReferenceProvider.php
+type Ressource = {
+	id: number
+	name: string
+	size: number
+	path: string
+	link: string
+	mimetype: string
+	mtime: number // as unix timestamp
+	'preview-available': boolean
+}
+
+type ViewerHandler = {
+	id: string
+	group: string
+	mimes: string[]
+	component: Component
+}
+
+/**
+ * Minimal mock of the legacy Viewer FileInfo
+ * TODO: replace by Node object
+ */
+type ViewerFile = {
+	filename: string // the path to the root folder
+	basename: string // the file name
+	lastmod: Date // the last modification date
+	size: number // the file size in bytes
+	type: string
+	mime: string
+	fileid: number
+	failed: boolean
+	loaded: boolean
+	davPath: string
+	source: string
+}
+
+export default defineComponent({
 	name: 'ReferenceFileWidget',
+	components: {
+		FolderIcon,
+		FileIcon,
+	},
 	props: {
 		richObject: {
-			type: Object,
+			type: Object as PropType<Ressource>,
 			required: true,
 		},
 		accessible: {
 			type: Boolean,
 			default: true,
 		},
+		interactive: {
+			type: Boolean,
+			default: true,
+		},
 	},
+
 	data() {
 		return {
-			previewUrl: window.OC.MimeType.getIconUrl(this.richObject.mimetype),
+			previewUrl: null as string | null,
+			failedViewer: false,
 		}
 	},
+
 	computed: {
+		availableViewerHandlers(): ViewerHandler[] {
+			return (window?.OCA?.Viewer?.availableHandlers || []) as ViewerHandler[]
+		},
+		viewerHandler(): ViewerHandler | undefined {
+			return this.availableViewerHandlers
+				.find(handler => handler.mimes.includes(this.richObject.mimetype))
+		},
+		viewerFile(): ViewerFile {
+			const davSource = generateRemoteUrl(`dav/files/${getCurrentUser()?.uid}/${this.richObject.path}`)
+				.replace(/\/\/$/, '/')
+			return {
+				filename: this.richObject.path,
+				basename: this.richObject.name,
+				lastmod: new Date(this.richObject.mtime * 1000),
+				size: this.richObject.size,
+				type: 'file',
+				mime: this.richObject.mimetype,
+				fileid: this.richObject.id,
+				failed: false,
+				loaded: true,
+				davPath: davSource,
+				source: davSource,
+			}
+		},
+
 		fileSize() {
 			return window.OC.Util.humanFileSize(this.richObject.size)
 		},
@@ -74,26 +179,26 @@ export default {
 		filePath() {
 			return path.dirname(this.richObject.path)
 		},
-		filePreview() {
+		filePreviewStyle() {
 			if (this.previewUrl) {
 				return {
 					backgroundImage: 'url(' + this.previewUrl + ')',
 				}
 			}
-
-			return {
-				backgroundImage: 'url(' + window.OC.MimeType.getIconUrl(this.richObject.mimetype) + ')',
-			}
-
+			return {}
 		},
 		filePreviewClass() {
 			if (this.previewUrl) {
-				return 'widget-file--image--preview'
+				return 'widget-file__image--preview'
 			}
-			return 'widget-file--image--icon'
+			return 'widget-file__image--icon'
 
 		},
+		isFolder() {
+			return this.richObject.mimetype === 'httpd/unix-directory'
+		},
 	},
+
 	mounted() {
 		if (this.richObject['preview-available']) {
 			const previewUrl = generateUrl('/core/preview?fileId={fileId}&x=250&y=250', {
@@ -110,43 +215,74 @@ export default {
 		}
 	},
 	methods: {
-		navigate() {
-			if (OCA.Viewer && OCA.Viewer.mimetypes.indexOf(this.richObject.mimetype) !== -1) {
-				OCA.Viewer.open({ path: this.richObject.path })
-				return
+		navigate(event) {
+			if (this.isFolder) {
+				event.stopPropagation()
+				event.preventDefault()
+				this.openFilePicker()
 			}
-			window.location = this.richObject.link
+		},
+
+		openFilePicker() {
+			const picker = getFilePickerBuilder(t('settings', 'Your files'))
+				.allowDirectories(true)
+				.setMultiSelect(false)
+				.addButton({
+					id: 'open',
+					label: this.t('settings', 'Open in files'),
+					callback(nodes: Node[]) {
+						if (nodes[0]) {
+							window.open(generateUrl('/f/{fileid}', {
+								fileid: nodes[0].fileid,
+							}))
+						}
+					},
+					type: 'primary',
+				})
+				.disableNavigation()
+				.startAt(this.richObject.path)
+				.build()
+			picker.pick()
 		},
 	},
-}
+})
 </script>
+
 <style lang="scss" scoped>
 .widget-file {
 	display: flex;
 	flex-grow: 1;
 	color: var(--color-main-text) !important;
 	text-decoration: none !important;
+	padding: 0 !important;
 
-	&--image {
-		min-width: 40%;
+	&__image {
+		width: 30%;
+		min-width: 160px;
+		max-width: 320px;
 		background-position: center;
 		background-size: cover;
 		background-repeat: no-repeat;
 
-		&.widget-file--image--icon {
+		&--icon {
 			min-width: 88px;
-			background-size: 44px;
+			max-width: 88px;
+			padding: 12px;
+			padding-right: 0;
+			display: flex;
+			align-items: center;
+			justify-content: center;
 		}
 	}
 
-	&--title {
+	&__title {
 		overflow: hidden;
 		text-overflow: ellipsis;
 		white-space: nowrap;
 		font-weight: bold;
 	}
 
-	&--details {
+	&__details {
 		padding: 12px;
 		flex-grow: 1;
 		display: flex;
@@ -158,7 +294,7 @@ export default {
 		}
 	}
 
-	&--description {
+	&__description {
 		overflow: hidden;
 		text-overflow: ellipsis;
 		display: -webkit-box;
@@ -167,16 +303,16 @@ export default {
 		-webkit-box-orient: vertical;
 	}
 
+	// No preview, standard link to ressource
 	&--link {
 		color: var(--color-text-maxcontrast);
 	}
 
-	&.widget-file--no-access {
-		padding: 12px;
-
-		.widget-file--details {
-			padding: 0;
-		}
+	&--interactive {
+		position: relative;
+		height: 400px;
+		max-height: 50vh;
+		margin: 0;
 	}
 }
 </style>