fix(editor): handle mime types

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/main/java/com/nextcloud/utils/EditorUtils.kt

@@ -1,6 +1,7 @@
 /*
  * Nextcloud - Android Client
  *
+ * SPDX-FileCopyrightText: 2026 Alper Ozturk <alper.ozturk@nextcloud.com>
  * SPDX-FileCopyrightText: 2022 Álvaro Brey <alvaro@alvarobrey.com>
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH
  * SPDX-License-Identifier: AGPL-3.0-or-later OR GPL-2.0-only
@@ -16,17 +17,27 @@ import javax.inject.Inject
 
 class EditorUtils @Inject constructor(private val arbitraryDataProvider: ArbitraryDataProvider) {
 
+    /**
+     * Returns only supported mimetypes
+     */
     fun getEditor(user: User?, mimeType: String?): Editor? {
-        val json = arbitraryDataProvider.getValue(user, ArbitraryDataProvider.DIRECT_EDITING)
-        if (json.isEmpty()) {
-            return null
-        }
-        val editors = Gson().fromJson(json, DirectEditing::class.java).editors.values
+        val editors = getEditors(user) ?: return null
         return editors.firstOrNull { mimeType in it.mimetypes }
-            ?: editors.firstOrNull { mimeType in it.optionalMimetypes }
     }
 
-    fun isEditorAvailable(user: User?, mimeType: String?): Boolean = getEditor(user, mimeType) != null
+    /**
+     * Returns supported mimetypes along with optional ones
+     */
+    fun isEditorAvailable(user: User?, mimeType: String?): Boolean {
+        val editors = getEditors(user) ?: return false
+        return editors.any { mimeType in it.mimetypes || mimeType in it.optionalMimetypes }
+    }
+
+    private fun getEditors(user: User?): Collection<Editor>? {
+        val json = arbitraryDataProvider.getValue(user, ArbitraryDataProvider.DIRECT_EDITING)
+        if (json.isEmpty()) return null
+        return Gson().fromJson(json, DirectEditing::class.java).editors.values
+    }
 
     fun usesOfficeUserAgent(editor: Editor?): Boolean = editor?.id in OFFICE_EDITOR_IDS
 

app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -1220,7 +1220,7 @@ private void handlePendingDownloadFile(OCFile file) {
         } else if (PreviewMediaActivity.Companion.canBePreviewed(file) && !file.isEncrypted() && mContainerActivity instanceof FileDisplayActivity fda) {
             setFabVisible(false);
             fda.startMediaPreview(file, 0, true, true, true, true);
-        } else if (editorUtils.isEditorAvailable(accountManager.getUser(), file.getMimeType()) && !file.isEncrypted()) {
+        } else if (editorUtils.getEditor(accountManager.getUser(), file.getMimeType()) != null && !file.isEncrypted()) {
             mContainerActivity.getFileOperationsHelper().openFileWithTextEditor(file, getContext());
         } else if (capability.getRichDocumentsMimeTypeList() != null &&
             capability.getRichDocumentsMimeTypeList().contains(file.getMimeType()) &&

app/src/main/java/com/owncloud/android/ui/helpers/FileOperationsHelper.java

@@ -291,6 +291,7 @@ public void openFile(OCFile file) {
         List<ResolveInfo> availableApps = fileActivity.getPackageManager().
             queryIntentActivities(openFileWithIntent, PackageManager.GET_RESOLVED_FILTER);
 
+        // first always try to use available apps
         if (availableApps.isEmpty()) {
             Optional<User> optionalUser = fileActivity.getUser();