add RecommendedFilesAdapter

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

app/src/main/java/com/owncloud/android/ui/adapter/OCFileListAdapter.java

@@ -82,6 +82,7 @@ import java.io.File;
 import java.io.IOException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.Date;
 import java.util.List;
@@ -97,6 +98,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 import androidx.core.content.ContextCompat;
+import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import me.zhanghai.android.fastscroll.PopupTextProvider;
@@ -433,6 +435,67 @@ public class OCFileListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHol
         } else if (holder instanceof OCFileListHeaderViewHolder headerViewHolder) {
             String text = currentDirectory.getRichWorkspace();
 
+            final var recommendedFiles = headerViewHolder.getBinding().recommendedFilesRecyclerView;
+
+            final LinearLayoutManager layoutManager = new LinearLayoutManager(activity, LinearLayoutManager.HORIZONTAL, false);
+            recommendedFiles.setLayoutManager(layoutManager);
+
+            // TODO use actual data
+            ArrayList<Recommendation> mockData = new ArrayList<>(Arrays.asList(
+                new Recommendation(
+                    1L,
+                    System.currentTimeMillis(),
+                    "Document1",
+                    "/documents",
+                    "pdf",
+                    "application/pdf",
+                    true,
+                    "Recently opened"
+                ),
+                new Recommendation(
+                    2L,
+                    System.currentTimeMillis() - 3600000,
+                    "Image1",
+                    "/pictures",
+                    "jpg",
+                    "image/jpeg",
+                    true,
+                    "Frequently viewed"
+                ),
+                new Recommendation(
+                    3L,
+                    System.currentTimeMillis() - 7200000,
+                    "Presentation1",
+                    "/presentations",
+                    "pptx",
+                    "application/vnd.ms-powerpoint",
+                    false,
+                    "Shared with you"
+                ),
+                new Recommendation(
+                    4L,
+                    System.currentTimeMillis() - 86400000,
+                    "Video1",
+                    "/videos",
+                    "mp4",
+                    "video/mp4",
+                    true,
+                    "Recent download"
+                ),
+                new Recommendation(
+                    5L,
+                    System.currentTimeMillis() - 604800000,
+                    "Spreadsheet1",
+                    "/spreadsheets",
+                    "xlsx",
+                    "application/vnd.ms-excel",
+                    false,
+                    "Marked as important"
+                )));
+
+            final var adapter = new RecommendedFilesAdapter(activity, viewThemeUtils, mockData);
+            recommendedFiles.setAdapter(adapter);
+
             PreviewTextFragment.setText(headerViewHolder.getHeaderText(), text, null, activity, true, true, viewThemeUtils);
             headerViewHolder.getHeaderView().setOnClickListener(v -> ocFileListFragmentInterface.onHeaderClicked());
         } else {
@@ -766,11 +829,13 @@ public class OCFileListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHol
             return false;
         }
 
+        // TODO add or condition for recommended files
+
         if (currentDirectory.getRichWorkspace() == null) {
             return false;
         }
 
-        return !TextUtils.isEmpty(currentDirectory.getRichWorkspace().trim());
+        return !TextUtils.isEmpty(currentDirectory.getRichWorkspace().trim()) || true;
     }
 
     /**

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

@@ -0,0 +1,96 @@
+/*
+ * Nextcloud - Android Client
+ *
+ * SPDX-FileCopyrightText: 2024 Alper Ozturk <alper.ozturk@nextcloud.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+package com.owncloud.android.ui.adapter
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.graphics.drawable.ColorDrawable
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.core.content.res.ResourcesCompat
+import androidx.recyclerview.widget.RecyclerView
+import com.owncloud.android.R
+import com.owncloud.android.databinding.RecommendedFilesListItemBinding
+import com.owncloud.android.utils.BitmapUtils
+import com.owncloud.android.utils.DisplayUtils
+import com.owncloud.android.utils.MimeTypeUtil
+import com.owncloud.android.utils.theme.ViewThemeUtils
+
+// TODO delete mock data
+data class Recommendation(
+    val id: Long,
+    val timestamp: Long,
+    val name: String,
+    val directory: String,
+    val extension: String,
+    val mimeType: String,
+    val hasPreview: Boolean,
+    val reason: String
+)
+
+class RecommendedFilesAdapter(
+    private val context: Context,
+    private val viewThemeUtils: ViewThemeUtils,
+    private val recommendations: List<Recommendation>
+) : RecyclerView.Adapter<RecommendedFilesAdapter.RecommendedFilesViewHolder>() {
+
+    inner class RecommendedFilesViewHolder(val binding: RecommendedFilesListItemBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        init {
+            binding.root.setOnClickListener {
+                val position = bindingAdapterPosition
+                if (position != RecyclerView.NO_POSITION) {
+                    // TODO onclick item
+                }
+            }
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecommendedFilesViewHolder {
+        val binding = RecommendedFilesListItemBinding
+            .inflate(LayoutInflater.from(parent.context), parent, false)
+        return RecommendedFilesViewHolder(binding)
+    }
+
+    override fun getItemCount(): Int = recommendations.size
+
+    override fun onBindViewHolder(holder: RecommendedFilesViewHolder, position: Int) {
+        val item = recommendations[position]
+
+        holder.binding.name.text = item.name
+        holder.binding.timestamp.text = DisplayUtils.getRelativeTimestamp(context,  item.timestamp)
+
+        val thumbnail = getThumbnail(item)
+        holder.binding.icon.setImageBitmap(thumbnail)
+    }
+
+    private fun getThumbnail(item: Recommendation): Bitmap {
+        var drawable = MimeTypeUtil.getFileTypeIcon(
+            item.mimeType,
+            item.name,
+            context,
+            viewThemeUtils
+        )
+
+        if (drawable == null) {
+            drawable = ResourcesCompat.getDrawable(
+                context.resources,
+                R.drawable.file_image,
+                null
+            )
+        }
+
+        if (drawable == null) {
+            drawable = ColorDrawable(Color.GRAY)
+        }
+
+        val width = DisplayUtils.convertPixelToDp(40, context).toInt()
+        return BitmapUtils.drawableToBitmap(drawable, width / 2, width / 2)
+    }
+}

app/src/main/res/layout/list_header.xml

@@ -29,4 +29,10 @@
         android:layout_height="match_parent"
         android:contentDescription="@null"
         android:src="@drawable/preview_markdown_gradient_shape" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recommended_files_recycler_view"
+        android:layout_gravity="bottom"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"/>
 </FrameLayout>

app/src/main/res/layout/recommended_files_list_item.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Nextcloud - Android Client
+  ~
+  ~ SPDX-FileCopyrightText: 2024 Alper Ozturk <alper.ozturk@nextcloud.com>
+  ~ SPDX-License-Identifier: AGPL-3.0-or-later
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:padding="@dimen/standard_padding"
+    android:gravity="center_vertical">
+
+    <ImageView
+        android:id="@+id/icon"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:layout_marginEnd="8dp"
+        android:contentDescription="@string/preview_image_description"
+        android:src="@drawable/preview_image_gradient_shape" />
+
+    <TextView
+        android:id="@+id/name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textStyle="bold"
+        android:textSize="16sp"
+        android:textColor="@color/text_color"
+        android:ellipsize="end"
+        android:maxLines="1"/>
+
+    <TextView
+        android:id="@+id/timestamp"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="12sp"
+        android:textColor="@color/text_color"
+        android:layout_marginStart="8dp" />
+
+</LinearLayout>