split out FilteredStatusViewHolder from StatusBaseViewHolder (#4543)

This is way more efficient than before as less views need to be inflated
and bound for a filtered status to be rendered. It also should fix the
bug where sometimes a `StatusViewHolder` that is set up for showing a
status gets bound to a status that is filtered, leading to a crash.

app/src/main/java/com/keylesspalace/tusky/adapter/FilteredStatusViewHolder.kt

@@ -0,0 +1,57 @@
+/* Copyright 2024 Tusky Contributors
+ *
+ * This file is a part of Tusky.
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Tusky; if not,
+ * see <http://www.gnu.org/licenses>. */
+package com.keylesspalace.tusky.adapter
+
+import androidx.recyclerview.widget.RecyclerView
+import com.keylesspalace.tusky.R
+import com.keylesspalace.tusky.components.notifications.NotificationsViewHolder
+import com.keylesspalace.tusky.databinding.ItemStatusFilteredBinding
+import com.keylesspalace.tusky.entity.Filter
+import com.keylesspalace.tusky.entity.FilterResult
+import com.keylesspalace.tusky.interfaces.StatusActionListener
+import com.keylesspalace.tusky.util.StatusDisplayOptions
+import com.keylesspalace.tusky.viewdata.NotificationViewData
+import com.keylesspalace.tusky.viewdata.StatusViewData
+
+class FilteredStatusViewHolder(
+    private val binding: ItemStatusFilteredBinding,
+    listener: StatusActionListener
+) : NotificationsViewHolder, RecyclerView.ViewHolder(binding.root) {
+
+    init {
+        binding.statusFilterShowAnyway.setOnClickListener {
+            listener.clearWarningAction(bindingAdapterPosition)
+        }
+    }
+
+    override fun bind(
+        viewData: NotificationViewData.Concrete,
+        payloads: List<*>,
+        statusDisplayOptions: StatusDisplayOptions
+    ) = bind(viewData.statusViewData!!)
+
+    fun bind(viewData: StatusViewData.Concrete) {
+        val matchedFilterResult: FilterResult? = viewData.actionable.filtered.orEmpty().find { filterResult ->
+            filterResult.filter.action == Filter.Action.WARN
+        }
+
+        val matchedFilterTitle = matchedFilterResult?.filter?.title.orEmpty()
+
+        binding.statusFilterLabel.text = itemView.context.getString(
+            R.string.status_filter_placeholder_label_format,
+            matchedFilterTitle
+        )
+    }
+}

app/src/main/java/com/keylesspalace/tusky/adapter/StatusBaseViewHolder.java

@@ -45,8 +45,6 @@ import com.keylesspalace.tusky.entity.Attachment.Focus;
 import com.keylesspalace.tusky.entity.Attachment.MetaData;
 import com.keylesspalace.tusky.entity.Card;
 import com.keylesspalace.tusky.entity.Emoji;
-import com.keylesspalace.tusky.entity.Filter;
-import com.keylesspalace.tusky.entity.FilterResult;
 import com.keylesspalace.tusky.entity.HashTag;
 import com.keylesspalace.tusky.entity.Status;
 import com.keylesspalace.tusky.entity.Translation;
@@ -120,9 +118,6 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
     private final TextView cardDescription;
     private final TextView cardUrl;
     private final PollAdapter pollAdapter;
-    protected final LinearLayout filteredPlaceholder;
-    protected final TextView filteredPlaceholderLabel;
-    protected final Button filteredPlaceholderShowButton;
     protected final ConstraintLayout statusContainer;
     private final TextView translationStatusView;
     private final Button untranslateButton;
@@ -179,9 +174,6 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
         cardDescription = itemView.findViewById(R.id.card_description);
         cardUrl = itemView.findViewById(R.id.card_link);
 
-        filteredPlaceholder = itemView.findViewById(R.id.status_filtered_placeholder);
-        filteredPlaceholderLabel = itemView.findViewById(R.id.status_filter_label);
-        filteredPlaceholderShowButton = itemView.findViewById(R.id.status_filter_show_anyway);
         statusContainer = itemView.findViewById(R.id.status_container);
 
         pollAdapter = new PollAdapter();
@@ -822,8 +814,6 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
 
             setSpoilerAndContent(status, statusDisplayOptions, listener);
 
-            setupFilterPlaceholder(status, listener, statusDisplayOptions);
-
             setDescriptionForStatus(status, statusDisplayOptions);
 
             // Workaround for RecyclerView 1.0.0 / androidx.core 1.0.0
@@ -866,35 +856,6 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
         }
     }
 
-    private void setupFilterPlaceholder(StatusViewData.Concrete status, StatusActionListener listener, StatusDisplayOptions displayOptions) {
-        if (status.getFilterAction() != Filter.Action.WARN) {
-            showFilteredPlaceholder(false);
-            return;
-        }
-
-        showFilteredPlaceholder(true);
-
-        Filter matchedFilter = null;
-
-        for (FilterResult result : status.getActionable().getFiltered()) {
-            Filter filter = result.getFilter();
-            if (filter.getAction() == Filter.Action.WARN) {
-                matchedFilter = filter;
-                break;
-            }
-        }
-
-        final String matchedFilterTitle;
-        if (matchedFilter == null) {
-            matchedFilterTitle = "";
-        } else {
-            matchedFilterTitle = matchedFilter.getTitle();
-        }
-
-        filteredPlaceholderLabel.setText(itemView.getContext().getString(R.string.status_filter_placeholder_label_format, matchedFilterTitle));
-        filteredPlaceholderShowButton.setOnClickListener(view -> listener.clearWarningAction(getBindingAdapterPosition()));
-    }
-
     protected static boolean hasPreviewableAttachment(@NonNull List<Attachment> attachments) {
         for (Attachment attachment : attachments) {
             if (attachment.getType() == Attachment.Type.AUDIO || attachment.getType() == Attachment.Type.UNKNOWN) {
@@ -1306,13 +1267,4 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
         bookmarkButton.setVisibility(visibility);
         moreButton.setVisibility(visibility);
     }
-
-    public void showFilteredPlaceholder(boolean show) {
-        if (statusContainer != null) {
-            statusContainer.setVisibility(show ? View.GONE : View.VISIBLE);
-        }
-        if (filteredPlaceholder != null) {
-            filteredPlaceholder.setVisibility(show ? View.VISIBLE : View.GONE);
-        }
-    }
 }

app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationsPagingAdapter.kt

@@ -20,16 +20,17 @@ import android.view.ViewGroup
 import androidx.paging.PagingDataAdapter
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
+import com.keylesspalace.tusky.R
+import com.keylesspalace.tusky.adapter.FilteredStatusViewHolder
 import com.keylesspalace.tusky.adapter.FollowRequestViewHolder
 import com.keylesspalace.tusky.adapter.PlaceholderViewHolder
 import com.keylesspalace.tusky.adapter.StatusBaseViewHolder
 import com.keylesspalace.tusky.databinding.ItemFollowBinding
 import com.keylesspalace.tusky.databinding.ItemFollowRequestBinding
 import com.keylesspalace.tusky.databinding.ItemReportNotificationBinding
-import com.keylesspalace.tusky.databinding.ItemStatusBinding
+import com.keylesspalace.tusky.databinding.ItemStatusFilteredBinding
 import com.keylesspalace.tusky.databinding.ItemStatusNotificationBinding
 import com.keylesspalace.tusky.databinding.ItemStatusPlaceholderBinding
-import com.keylesspalace.tusky.databinding.ItemStatusWrapperBinding
 import com.keylesspalace.tusky.databinding.ItemUnknownNotificationBinding
 import com.keylesspalace.tusky.entity.Filter
 import com.keylesspalace.tusky.entity.Notification
@@ -103,14 +104,13 @@ class NotificationsPagingAdapter(
         val inflater = LayoutInflater.from(parent.context)
         return when (viewType) {
             VIEW_TYPE_STATUS -> StatusViewHolder(
-                ItemStatusBinding.inflate(inflater, parent, false).root,
+                inflater.inflate(R.layout.item_status, parent, false),
                 statusListener,
                 accountId
             )
-            VIEW_TYPE_STATUS_FILTERED -> StatusViewHolder(
+            VIEW_TYPE_STATUS_FILTERED -> FilteredStatusViewHolder(
-                ItemStatusWrapperBinding.inflate(inflater, parent, false).root,
+                ItemStatusFilteredBinding.inflate(inflater, parent, false),
-                statusListener,
+                statusListener
-                accountId
             )
             VIEW_TYPE_STATUS_NOTIFICATION -> StatusNotificationViewHolder(
                 ItemStatusNotificationBinding.inflate(inflater, parent, false),

app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationsViewModel.kt

@@ -158,7 +158,7 @@ class NotificationsViewModel @Inject constructor(
 
     private fun shouldFilterStatus(notificationViewData: NotificationViewData): Filter.Action {
         return when ((notificationViewData as? NotificationViewData.Concrete)?.type) {
-            Notification.Type.MENTION, Notification.Type.STATUS, Notification.Type.POLL -> {
+            Notification.Type.MENTION, Notification.Type.POLL -> {
                 notificationViewData.statusViewData?.let { statusViewData ->
                     statusViewData.filterAction = filterModel.shouldFilterStatus(statusViewData.actionable)
                     return statusViewData.filterAction

app/src/main/java/com/keylesspalace/tusky/components/timeline/TimelinePagingAdapter.kt

@@ -21,9 +21,11 @@ import androidx.paging.PagingDataAdapter
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
 import com.keylesspalace.tusky.R
+import com.keylesspalace.tusky.adapter.FilteredStatusViewHolder
 import com.keylesspalace.tusky.adapter.PlaceholderViewHolder
 import com.keylesspalace.tusky.adapter.StatusBaseViewHolder
 import com.keylesspalace.tusky.adapter.StatusViewHolder
+import com.keylesspalace.tusky.databinding.ItemStatusFilteredBinding
 import com.keylesspalace.tusky.databinding.ItemStatusPlaceholderBinding
 import com.keylesspalace.tusky.entity.Filter
 import com.keylesspalace.tusky.interfaces.StatusActionListener
@@ -51,7 +53,10 @@ class TimelinePagingAdapter(
         val inflater = LayoutInflater.from(viewGroup.context)
         return when (viewType) {
             VIEW_TYPE_STATUS_FILTERED -> {
-                StatusViewHolder(inflater.inflate(R.layout.item_status_wrapper, viewGroup, false))
+                FilteredStatusViewHolder(
+                    ItemStatusFilteredBinding.inflate(inflater, viewGroup, false),
+                    statusListener
+                )
             }
             VIEW_TYPE_PLACEHOLDER -> {
                 PlaceholderViewHolder(
@@ -82,20 +87,25 @@ class TimelinePagingAdapter(
         position: Int,
         payloads: List<*>?
     ) {
-        val status = getItem(position)
+        val viewData = getItem(position)
-        if (status is StatusViewData.Placeholder) {
+        if (viewData is StatusViewData.Placeholder) {
             val holder = viewHolder as PlaceholderViewHolder
-            holder.setup(status.isLoading)
+            holder.setup(viewData.isLoading)
-        } else if (status is StatusViewData.Concrete) {
+        } else if (viewData is StatusViewData.Concrete) {
+            if (viewData.filterAction == Filter.Action.WARN) {
+                val holder = viewHolder as FilteredStatusViewHolder
+                holder.bind(viewData)
+            } else {
                 val holder = viewHolder as StatusViewHolder
                 holder.setupWithStatus(
-                status,
+                    viewData,
                     statusListener,
                     statusDisplayOptions,
                     if (payloads != null && payloads.isNotEmpty()) payloads[0] else null
                 )
             }
         }
+    }
 
     override fun getItemViewType(position: Int): Int {
         val viewData = getItem(position)

app/src/main/java/com/keylesspalace/tusky/components/viewthread/ThreadAdapter.kt

@@ -19,10 +19,13 @@ import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView
 import com.keylesspalace.tusky.R
+import com.keylesspalace.tusky.adapter.FilteredStatusViewHolder
 import com.keylesspalace.tusky.adapter.StatusBaseViewHolder
 import com.keylesspalace.tusky.adapter.StatusDetailedViewHolder
 import com.keylesspalace.tusky.adapter.StatusViewHolder
+import com.keylesspalace.tusky.databinding.ItemStatusFilteredBinding
 import com.keylesspalace.tusky.entity.Filter
 import com.keylesspalace.tusky.interfaces.StatusActionListener
 import com.keylesspalace.tusky.util.StatusDisplayOptions
@@ -31,30 +34,34 @@ import com.keylesspalace.tusky.viewdata.StatusViewData
 class ThreadAdapter(
     private val statusDisplayOptions: StatusDisplayOptions,
     private val statusActionListener: StatusActionListener
-) : ListAdapter<StatusViewData.Concrete, StatusBaseViewHolder>(ThreadDifferCallback) {
+) : ListAdapter<StatusViewData.Concrete, RecyclerView.ViewHolder>(ThreadDifferCallback) {
 
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): StatusBaseViewHolder {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
         val inflater = LayoutInflater.from(parent.context)
         return when (viewType) {
-            VIEW_TYPE_STATUS -> {
+            VIEW_TYPE_STATUS ->
                 StatusViewHolder(inflater.inflate(R.layout.item_status, parent, false))
-            }
+            VIEW_TYPE_STATUS_FILTERED ->
-            VIEW_TYPE_STATUS_FILTERED -> {
+                FilteredStatusViewHolder(
-                StatusViewHolder(inflater.inflate(R.layout.item_status_wrapper, parent, false))
+                    ItemStatusFilteredBinding.inflate(inflater, parent, false),
-            }
+                    statusActionListener
-            VIEW_TYPE_STATUS_DETAILED -> {
+                )
+            VIEW_TYPE_STATUS_DETAILED ->
                 StatusDetailedViewHolder(
                     inflater.inflate(R.layout.item_status_detailed, parent, false)
                 )
-            }
             else -> error("Unknown item type: $viewType")
         }
     }
 
-    override fun onBindViewHolder(viewHolder: StatusBaseViewHolder, position: Int) {
+    override fun onBindViewHolder(viewHolder: RecyclerView.ViewHolder, position: Int) {
         val status = getItem(position)
+        if (viewHolder is FilteredStatusViewHolder) {
+            viewHolder.bind(status)
+        } else if (viewHolder is StatusBaseViewHolder) {
             viewHolder.setupWithStatus(status, statusActionListener, statusDisplayOptions)
         }
+    }
 
     override fun getItemViewType(position: Int): Int {
         val viewData = getItem(position)
@@ -68,7 +75,6 @@ class ThreadAdapter(
     }
 
     companion object {
-        private const val TAG = "ThreadAdapter"
         private const val VIEW_TYPE_STATUS = 0
         private const val VIEW_TYPE_STATUS_DETAILED = 1
         private const val VIEW_TYPE_STATUS_FILTERED = 2

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

@@ -3,7 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/status_filtered_placeholder"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="wrap_content"
     android:orientation="vertical">
 
     <TextView
@@ -12,11 +12,10 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="8dp"
         android:layout_marginBottom="0dp"
-        android:text="Filter: MyFilter"
         android:textAlignment="center"
         android:textColor="?android:textColorSecondary"
         android:textSize="?attr/status_text_medium"
-        tools:ignore="HardcodedText" />
+        tools:text="Filter: MyFilter" />
 
     <Button
         android:id="@+id/status_filter_show_anyway"

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

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <include layout="@layout/item_status" />
-
-    <include
-        layout="@layout/item_status_filtered"
-        android:visibility="gone"
-        />
-</FrameLayout>