Allow opening files outside of the file system in viewer

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Author: juliusknorr

src/components/ViewerComponent.vue

@@ -21,21 +21,29 @@
   -->
 
 <template>
-	<Editor :file-id="fileid"
+	<Editor v-if="permissions.includes('W')"
+		:file-id="fileid"
 		:relative-path="filename"
 		:active="active"
 		:autofocus="autofocus"
 		:share-token="shareToken"
 		:mime="mime"
 		:show-outline-outside="showOutlineOutside" />
+	<Component :is="readerComponent" v-else :content="content" />
 </template>
 
 <script>
+import axios from '@nextcloud/axios'
+import PlainTextReader from './PlainTextReader.vue'
+import RichTextReader from './RichTextReader.vue'
+
 import { getSharingToken } from '../helpers/token.js'
 
 export default {
 	name: 'ViewerComponent',
 	components: {
+		RichTextReader,
+		PlainTextReader,
 		Editor: () => import(/* webpackChunkName: "editor" */'./Editor.vue'),
 	},
 	props: {
@@ -67,6 +75,36 @@ export default {
 			type: Boolean,
 			default: false,
 		},
+		permissions: {
+			type: String,
+			default: '',
+		},
+		source: {
+			type: String,
+			default: undefined,
+		},
+	},
+	data() {
+		return {
+			content: '',
+		}
+	},
+	computed: {
+		/** @return {boolean} */
+		readerComponent() {
+			return this.mime === 'text/markdown' ? RichTextReader : PlainTextReader
+		},
+	},
+	beforeMount() {
+		// FIXME Dirty fix to avoid recreating the component on stable16
+		if (typeof this.$parent.$parent !== 'undefined' && this.$parent.$parent.onResize) {
+			window.removeEventListener('resize', this.$parent.$parent.onResize)
+		}
+	},
+	async mounted() {
+		const data = await axios.get(this.source)
+		this.content = data
+		this.$emit('update:loaded', true)
 	},
 }
 </script>