Added Preview images for non image files (Based on type / generated from extension)

Closes #31

frontend/src/components/AsyncImage.vue

@@ -1,31 +0,0 @@
-<script setup async lang="ts">
-import type { TokenInjectType } from '@/api';
-import { inject, ref } from 'vue';
-import { NImage } from 'naive-ui';
-import { check_token, FS, isErrorResponse } from '@/api';
-
-const props = defineProps<{
-	alt: string;
-	id: number;
-}>();
-
-const jwt = inject<TokenInjectType>('jwt') as TokenInjectType;
-
-const success = ref(false);
-const data = ref('');
-
-const token = await check_token(jwt);
-if (token) {
-	const resp = await FS.download_preview(jwt.jwt.value ?? '', props.id);
-	if (!isErrorResponse(resp)) {
-		data.value = resp.data;
-		success.value = true;
-	}
-}
-</script>
-
-<template>
-	<NImage v-if="success" :alt="alt" :src="data" />
-</template>
-
-<style lang="scss"></style>

frontend/src/components/DirViewer/DirViewerTable.vue

@@ -34,7 +34,7 @@ import {
 	Download
 } from '@vicons/carbon';
 import NLink from '@/components/NLink.vue';
-import AsyncImage from '@/components/AsyncImage.vue';
+import PreviewImage from '@/components/DirViewer/PreviewImage.vue';
 import createZipDialog from '@/components/DirViewer/CreateZipDialog';
 import DeleteModal from '@/components/DirViewer/DeleteModal.vue';
 
@@ -219,12 +219,10 @@ const previewColumns: DataTableColumn<Responses.GetNodeEntry>[] = [
 		title: 'Preview',
 		key: 'preview',
 		render(node) {
-			return node.preview ? (
+			return node.isFile ? (
 				<Suspense>
 					{{
-						default: () => (
-							<AsyncImage alt={node.name} id={node.id} />
-						),
+						default: () => <PreviewImage node={node} />,
 						fallback: () => <NSpin size="small" />
 					}}
 				</Suspense>

frontend/src/components/DirViewer/PreviewImage.vue

@@ -0,0 +1,84 @@
+<script setup async lang="ts">
+import type { TokenInjectType } from '@/api';
+import { inject, ref } from 'vue';
+import { NImage, NIcon } from 'naive-ui';
+import { Image, Music, Video, Document } from '@vicons/carbon';
+import { check_token, FS, isErrorResponse, Responses } from '@/api';
+
+const props = defineProps<{
+	node: Responses.GetNodeEntry;
+}>();
+
+enum fileTypes {
+	UNKNOWN,
+	IMAGE,
+	AUDIO,
+	VIDEO,
+	PDF
+}
+
+const jwt = inject<TokenInjectType>('jwt') as TokenInjectType;
+
+const success = ref(false);
+const data = ref('');
+const fileType = ref<fileTypes>(fileTypes.UNKNOWN);
+
+const token = await check_token(jwt);
+if (token) {
+	if (props.node.preview) {
+		const resp = await FS.download_preview(token, props.node.id);
+		if (!isErrorResponse(resp)) {
+			data.value = resp.data;
+			success.value = true;
+		}
+	} else {
+		fileType.value = fileTypes.UNKNOWN;
+		const resp = await FS.get_type(token, props.node.id);
+		if (!isErrorResponse(resp)) {
+			if (resp.type.startsWith('image')) fileType.value = fileTypes.IMAGE;
+			else if (resp.type.startsWith('application/pdf'))
+				fileType.value = fileTypes.PDF;
+			else if (resp.type.startsWith('audio'))
+				fileType.value = fileTypes.AUDIO;
+			else if (resp.type.startsWith('video'))
+				fileType.value = fileTypes.VIDEO;
+		}
+	}
+}
+</script>
+
+<template>
+	<n-image v-if="success" :alt="node.name" :src="data" />
+	<n-icon v-else-if="fileType !== fileTypes.UNKNOWN" size="2em">
+		<Image v-if="fileType === fileTypes.IMAGE" />
+		<Music v-else-if="fileType === fileTypes.AUDIO" />
+		<Video v-else-if="fileType === fileTypes.VIDEO" />
+		<Document v-else-if="fileType === fileTypes.PDF" />
+	</n-icon>
+	<svg
+		v-else
+		viewBox="0 0 32 32"
+		xmlns="http://www.w3.org/2000/svg"
+		height="2em"
+	>
+		<path
+			d="M22 14v-4a.91.91 0 0 0-.3-.7l-7-7A.909.909 0 0 0 14 2H4a2.006 2.006 0 0 0-2 2v24a2 2 0 0 0 2 2h16v-2H4V4h8v6a2.006 2.006 0 0 0 2 2h6v2zm-8-4V4.4l5.6 5.6z"
+			fill="currentColor"
+		/>
+		<text
+			transform="matrix(4,0,0,1.9,3.5,11.25)"
+			font-family="'Myriad Pro'"
+			font-size="8px"
+			lengthAdjust="spacingAndGlyphs"
+			textLength="6"
+			xml:space="preserve"
+			fill="currentColor"
+		>
+			<tspan x="0.4" y="7.5">
+				{{ node.name.split('.').pop().toUpperCase() }}
+			</tspan>
+		</text>
+	</svg>
+</template>
+
+<style lang="scss"></style>