Increase OCFileListAdapter Performance

app/src/main/java/com/nextcloud/utils/extensions/FileDataStorageManagerExtensions.kt

@@ -0,0 +1,24 @@
+/*
+ * Nextcloud - Android Client
+ *
+ * SPDX-FileCopyrightText: 2025 Alper Ozturk <[email protected]>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+package com.nextcloud.utils.extensions
+
+import com.nextcloud.model.OCFileFilterType
+import com.owncloud.android.datamodel.FileDataStorageManager
+import com.owncloud.android.datamodel.OCFile
+
+fun FileDataStorageManager.filter(file: OCFile, filterType: OCFileFilterType): List<OCFile> =
+    if (!file.isRootDirectory) {
+        getFolderContent(file, false)
+    } else {
+        getAllFiles().filter { ocFile ->
+            when (filterType) {
+                OCFileFilterType.Shared -> ocFile.isShared
+                OCFileFilterType.Favorite -> ocFile.isFavorite
+            }
+        }
+    }

app/src/main/java/com/nextcloud/utils/extensions/OCFileExtensions.kt

@@ -0,0 +1,59 @@
+/*
+ * Nextcloud - Android Client
+ *
+ * SPDX-FileCopyrightText: 2025 Alper Ozturk <[email protected]>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+package com.nextcloud.utils.extensions
+
+import com.owncloud.android.datamodel.FileDataStorageManager
+import com.owncloud.android.datamodel.OCFile
+
+fun List<OCFile>.setEncryptionAttributeForItemId(
+    fileId: String,
+    encrypted: Boolean,
+    storageManager: FileDataStorageManager
+) {
+    find { it.remoteId == fileId }?.let { file ->
+        file.apply {
+            isEncrypted = encrypted
+            setE2eCounter(0L)
+            storageManager.saveFile(this)
+        }
+    }
+}
+
+fun List<OCFile>.refreshCommentsCount(remoteId: String) {
+    find { it.remoteId == remoteId }?.let { file ->
+        file.unreadCommentsCount = 0
+    }
+}
+
+fun List<OCFile>.getHiddenFilenames(): List<String> {
+    return filter { it.shouldHide() }.map { it.fileName }
+}
+
+fun List<OCFile>.filterHiddenFiles(): List<OCFile> = filterNot { it.isHidden }.distinct()
+
+fun List<OCFile>.filterByMimeType(mimeType: String): List<OCFile> =
+    filter { it.isFolder || it.mimeType.startsWith(mimeType) }
+
+fun List<OCFile>.limitToPersonalFiles(userId: String): List<OCFile> = filter { file ->
+    file.ownerId?.let { ownerId ->
+        ownerId == userId && !file.isSharedWithMe && !file.isGroupFolder
+    } ?: false
+}
+
+fun List<OCFile>.addOfflineOperations(storageManager: FileDataStorageManager, fileId: Long) {
+    val offlineOperations = storageManager.offlineOperationsRepository.convertToOCFiles(fileId)
+    if (offlineOperations.isEmpty()) {
+        return
+    }
+
+    val result = offlineOperations.filter { offlineFile ->
+        none { file -> file.decryptedRemotePath == offlineFile.decryptedRemotePath }
+    }
+
+    toMutableList().addAll(result)
+}

app/src/main/java/com/owncloud/android/datamodel/FileDataStorageManager.java

@@ -41,7 +41,6 @@
 import com.nextcloud.client.database.entity.OfflineOperationEntity;
 import com.nextcloud.client.jobs.offlineOperations.repository.OfflineOperationsRepository;
 import com.nextcloud.client.jobs.offlineOperations.repository.OfflineOperationsRepositoryType;
-import com.nextcloud.model.OCFileFilterType;
 import com.nextcloud.model.OfflineOperationRawType;
 import com.nextcloud.model.OfflineOperationType;
 import com.nextcloud.utils.date.DateFormatPattern;
@@ -2768,27 +2767,4 @@ public boolean isPartOfInternalTwoWaySync(OCFile file) {
         }
         return false;
     }
-
-    public List<OCFile> filter(OCFile file, OCFileFilterType filterType) {
-        if (!file.isRootDirectory()) {
-            return getFolderContent(file,false);
-        }
-
-        final List<OCFile> result = new ArrayList<>();
-        final List<OCFile> allFiles = getAllFiles();
-        for (OCFile ocFile: allFiles) {
-            boolean condition = false;
-            if (filterType == OCFileFilterType.Shared) {
-                condition = ocFile.isShared();
-            } else if (filterType == OCFileFilterType.Favorite) {
-                condition = ocFile.isFavorite();
-            }
-
-            if (condition) {
-                result.add(ocFile);
-            }
-        }
-
-        return result;
-    }
 }

app/src/main/java/com/owncloud/android/ui/adapter/OCFileDiffCallback.kt

@@ -0,0 +1,27 @@
+/*
+ * Nextcloud - Android Client
+ *
+ * SPDX-FileCopyrightText: 2025 Alper Ozturk <[email protected]>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+package com.owncloud.android.ui.adapter
+
+import androidx.recyclerview.widget.DiffUtil
+import com.owncloud.android.datamodel.OCFile
+
+class OCFileDiffCallback(private val oldList: List<OCFile>, private val newList: List<OCFile>) : DiffUtil.Callback() {
+    override fun getOldListSize(): Int = oldList.size
+    override fun getNewListSize(): Int = newList.size
+
+    override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
+        return oldList[oldItemPosition].remoteId === newList[newItemPosition].remoteId ||
+            oldList[oldItemPosition].decryptedRemotePath === newList[newItemPosition].decryptedRemotePath
+    }
+
+    override fun areContentsTheSame(oldPosition: Int, newPosition: Int): Boolean {
+        return oldList[oldPosition].remoteId == newList[newPosition].remoteId &&
+            oldList[oldPosition].hashCode() == newList[newPosition].hashCode() &&
+            oldList[oldPosition].fileLength == newList[newPosition].fileLength
+    }
+}