From d91eac27e95270f358fa6e590bbcdbee0511acc8 Mon Sep 17 00:00:00 2001
From: Louis Chemineau <louis@chmn.me>
Date: Thu, 10 Oct 2024 15:16:57 +0200
Subject: [PATCH] fix: Make loading the viewer an init script

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>
Signed-off-by: Louis Chemineau <louis@chmn.me>
---
 lib/Listener/LoadViewerScript.php  |  1 +
 src/components/Images.vue          |  4 ---
 src/init.js                        | 14 ++++++++++
 src/main.js                        | 10 +++----
 src/services/FilesActionHandler.js | 36 +++++++++++++++++++++++--
 src/services/Viewer.js             |  3 ++-
 src/views/Viewer.vue               | 43 +++++-------------------------
 webpack.config.ts                  |  5 ++++
 8 files changed, 66 insertions(+), 50 deletions(-)
 create mode 100644 src/init.js

diff --git a/lib/Listener/LoadViewerScript.php b/lib/Listener/LoadViewerScript.php
index 0e4681c61..5a7ad7f0f 100644
--- a/lib/Listener/LoadViewerScript.php
+++ b/lib/Listener/LoadViewerScript.php
@@ -54,6 +54,7 @@ public function handle(Event $event): void {
 			return;
 		}
 
+		Util::addInitScript(Application::APP_ID, 'viewer-init', 'files');
 		Util::addScript(Application::APP_ID, 'viewer-main', 'files');
 		$this->initialStateService->provideInitialState('enabled_preview_providers', array_keys($this->previewManager->getProviders()));
 	}
diff --git a/src/components/Images.vue b/src/components/Images.vue
index 4f5138f18..d1bb850dc 100644
--- a/src/components/Images.vue
+++ b/src/components/Images.vue
@@ -86,8 +86,6 @@
 </template>
 
 <script>
-import Vue from 'vue'
-import AsyncComputed from 'vue-async-computed'
 import PlayCircleOutline from 'vue-material-design-icons/PlayCircleOutline.vue'
 
 import axios from '@nextcloud/axios'
@@ -99,8 +97,6 @@ import ImageEditor from './ImageEditor.vue'
 import { findLivePhotoPeerFromFileId } from '../utils/livePhotoUtils'
 import { getDavPath } from '../utils/fileUtils'
 
-Vue.use(AsyncComputed)
-
 export default {
 	name: 'Images',
 
diff --git a/src/init.js b/src/init.js
new file mode 100644
index 000000000..2aa80aa78
--- /dev/null
+++ b/src/init.js
@@ -0,0 +1,14 @@
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+import { registerViewerAction } from './services/FilesActionHandler.js'
+import ViewerService from './services/Viewer.js'
+
+// Register the files action
+registerViewerAction()
+
+// Init Viewer Service
+window.OCA = window.OCA ?? {}
+window.OCA.Viewer = new ViewerService()
+window.OCA.Viewer.version = appVersion
diff --git a/src/main.js b/src/main.js
index 5b6dd86c9..f5d37bdb4 100644
--- a/src/main.js
+++ b/src/main.js
@@ -22,9 +22,9 @@
 import { generateFilePath } from '@nextcloud/router'
 import { translate as t } from '@nextcloud/l10n'
 import Vue from 'vue'
+import AsyncComputed from 'vue-async-computed'
 
 import ViewerComponent from './views/Viewer.vue'
-import ViewerService from './services/Viewer.js'
 
 Vue.mixin({
 	methods: {
@@ -46,12 +46,6 @@ __webpack_nonce__ = btoa(OC.requestToken)
 // eslint-disable-next-line
 __webpack_public_path__ = generateFilePath('viewer', '', 'js/')
 
-// Init Viewer Service
-if (window.OCA) {
-	Object.assign(window.OCA, { Viewer: new ViewerService() })
-	window.OCA.Viewer.version = appVersion
-}
-
 // Create document root
 const ViewerRoot = document.createElement('div')
 ViewerRoot.id = 'viewer'
@@ -64,6 +58,8 @@ VideoControls.innerHTML = PLYR_ICONS
 VideoControls.style.display = 'none'
 document.body.appendChild(VideoControls)
 
+Vue.use(AsyncComputed)
+
 // Init vue
 export default new Vue({
 	el: '#viewer',
diff --git a/src/services/FilesActionHandler.js b/src/services/FilesActionHandler.js
index 05ecdfdd7..99b2c42be 100644
--- a/src/services/FilesActionHandler.js
+++ b/src/services/FilesActionHandler.js
@@ -20,12 +20,18 @@
  *
  */
 
+// eslint-disable-next-line import/no-unresolved
+import EyeSvg from '@mdi/svg/svg/eye.svg?raw'
+
+import { DefaultType, FileAction, Node, Permission, registerFileAction, View } from '@nextcloud/files'
+import { translate as t } from '@nextcloud/l10n'
+
 /**
  * @param {Node} node The file to open
- * @param {any} view any The files view
+ * @param {View} view any The files view
  * @param {string} dir the directory path
  */
-export default function(node, view, dir) {
+function filesActionHandler(node, view, dir) {
 	// replace potential leading double slashes
 	const path = `${node.dirname}/${node.basename}`.replace(/^\/\//, '/')
 	const onClose = () => {
@@ -51,3 +57,29 @@ function pushToHistory(node, view, dir) {
 		true,
 	)
 }
+
+/**
+ *
+ */
+export function registerViewerAction() {
+	registerFileAction(new FileAction({
+		id: 'view',
+		displayName() {
+			return t('viewer', 'View')
+		},
+		iconSvgInline: () => EyeSvg,
+		default: DefaultType.DEFAULT,
+		enabled: (nodes) => {
+			// Disable if not located in user root
+			if (nodes.some(node => !(node.isDavRessource && node.root?.startsWith('/files')))) {
+				return false
+			}
+			// Faster to check if at least one node doesn't match the requirements
+			return !nodes.some(node => (
+				(node.permissions & Permission.READ) === 0
+				|| !window.OCA.Viewer.mimetypes.includes(node.mime)
+			))
+		},
+		exec: filesActionHandler,
+	}))
+}
diff --git a/src/services/Viewer.js b/src/services/Viewer.js
index 55e51e31c..cea55ef27 100644
--- a/src/services/Viewer.js
+++ b/src/services/Viewer.js
@@ -23,6 +23,7 @@
 import Images from '../models/images.js'
 import Videos from '../models/videos.js'
 import Audios from '../models/audios.js'
+import logger from './logger.js'
 
 /**
  * Handler type definition
@@ -78,7 +79,7 @@ export default class Viewer {
 		this.registerHandler(Videos)
 		this.registerHandler(Audios)
 
-		console.debug('OCA.Viewer initialized')
+		logger.debug('OCA.Viewer initialized')
 	}
 
 	/**
diff --git a/src/views/Viewer.vue b/src/views/Viewer.vue
index 52cd4a7ce..a3de851a8 100644
--- a/src/views/Viewer.vue
+++ b/src/views/Viewer.vue
@@ -193,7 +193,6 @@ import Vue from 'vue'
 import axios from '@nextcloud/axios'
 import { showError } from '@nextcloud/dialogs'
 import { emit, subscribe, unsubscribe } from '@nextcloud/event-bus'
-import { registerFileAction, FileAction, Permission, DefaultType } from '@nextcloud/files'
 import getSortingConfig from '../services/FileSortingConfig.ts'
 
 import isFullscreen from '@nextcloud/vue/dist/Mixins/isFullscreen.js'
@@ -205,7 +204,6 @@ import canDownload from '../utils/canDownload.js'
 import cancelableRequest from '../utils/CancelableRequest.js'
 import Error from '../components/Error.vue'
 import File from '../models/file.js'
-import filesActionHandler from '../services/FilesActionHandler.js'
 import legacyFilesActionHandler from '../services/LegacyFilesActionHandler.js'
 import getFileInfo from '../services/FileInfo.ts'
 import getFileList from '../services/FileList.ts'
@@ -214,7 +212,6 @@ import logger from '../services/logger.js'
 
 import Delete from 'vue-material-design-icons/Delete.vue'
 import Download from 'vue-material-design-icons/Download.vue'
-import EyeSvg from '@mdi/svg/svg/eye.svg?raw'
 import Fullscreen from 'vue-material-design-icons/Fullscreen.vue'
 import FullscreenExit from 'vue-material-design-icons/FullscreenExit.vue'
 import Pencil from 'vue-material-design-icons/Pencil.vue'
@@ -286,8 +283,7 @@ export default {
 			isSidebarShown: false,
 			isFullscreenMode: false,
 			canSwipe: true,
-			// TODO: remove OCA?.Files?.fileActions when public Files is Vue
-			isStandalone: OCP?.Files === undefined && OCA?.Files?.fileActions === undefined,
+			isStandalone: false,
 			theme: null,
 			root: getRootPath(),
 			handlerId: '',
@@ -523,6 +519,12 @@ export default {
 	},
 
 	beforeMount() {
+		this.isStandalone = window.OCP?.Files === undefined && window.OCA?.Files?.fileActions === undefined
+
+		if (this.isStandalone) {
+			logger.info('No OCP.Files app found, viewer is now in standalone mode')
+		}
+
 		// register on load
 		document.addEventListener('DOMContentLoaded', () => {
 			// register all primary components mimes
@@ -542,16 +544,10 @@ export default {
 				this.Sidebar = OCA.Files.Sidebar.state
 			}
 
-			this.registerFileActions()
-
 			logger.info(`${this.handlers.length} viewer handlers registered`, { handlers: this.handlers })
 		})
 
 		window.addEventListener('resize', this.onResize)
-
-		if (this.isStandalone) {
-			logger.info('No OCP.Files app found, viewer is now in standalone mode')
-		}
 	},
 
 	mounted() {
@@ -939,31 +935,6 @@ export default {
 			}
 		},
 
-		registerFileActions() {
-			if (!this.isStandalone) {
-				registerFileAction(new FileAction({
-					id: 'view',
-					displayName() {
-						return t('viewer', 'View')
-					},
-					iconSvgInline: () => EyeSvg,
-					default: DefaultType.DEFAULT,
-					enabled: (nodes) => {
-						// Disable if not located in user root
-						if (nodes.some(node => !(node.isDavRessource && node.root?.startsWith('/files')))) {
-							return false
-						}
-						// Faster to check if at least one node doesn't match the requirements
-						return !nodes.some(node => (
-							(node.permissions & Permission.READ) === 0
-							|| !this.Viewer.mimetypes.includes(node.mime)
-						))
-					},
-					exec: filesActionHandler,
-				}))
-			}
-		},
-
 		/**
 		 * Close the viewer
 		 */
diff --git a/webpack.config.ts b/webpack.config.ts
index 48aefd251..912f8db73 100644
--- a/webpack.config.ts
+++ b/webpack.config.ts
@@ -15,6 +15,11 @@ if (isTesting) {
 	console.debug('TESTING MODE ENABLED')
 }
 
+webpackConfig.entry = {
+	main: path.join(__dirname, 'src', 'main.js'),
+	init: path.join(__dirname, 'src', 'init.js'),
+}
+
 // vue-plyr uses .mjs file
 webpackRules.RULE_JS.test = /\.m?js$/
 webpackRules.RULE_JS.exclude = BabelLoaderExcludeNodeModulesExcept([