View subreddit sidebar is now available.

app/src/main/AndroidManifest.xml

@@ -21,7 +21,11 @@
         android:theme="@style/AppTheme"
         android:usesCleartextTraffic="true"
         tools:replace="android:label">
-        <activity android:name=".Activity.ViewMultiRedditDetailActivity"
+        <activity android:name=".Activity.ViewSidebarActivity"
+            android:parentActivityName=".Activity.MainActivity"
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".Activity.ViewMultiRedditDetailActivity"
             android:parentActivityName=".Activity.MainActivity"
             android:theme="@style/AppTheme.NoActionBar" />
         <activity

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewSidebarActivity.java

@@ -0,0 +1,185 @@
+package ml.docilealligator.infinityforreddit.Activity;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.text.style.SuperscriptSpan;
+import android.text.util.Linkify;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.widget.Toolbar;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.appbar.AppBarLayout;
+
+import org.commonmark.ext.gfm.tables.TableBlock;
+
+import javax.inject.Inject;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import io.noties.markwon.AbstractMarkwonPlugin;
+import io.noties.markwon.Markwon;
+import io.noties.markwon.MarkwonConfiguration;
+import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
+import io.noties.markwon.linkify.LinkifyPlugin;
+import io.noties.markwon.recycler.MarkwonAdapter;
+import io.noties.markwon.recycler.table.TableEntry;
+import io.noties.markwon.recycler.table.TableEntryPlugin;
+import io.noties.markwon.simple.ext.SimpleExtPlugin;
+import io.noties.markwon.urlprocessor.UrlProcessorRelativeToAbsolute;
+import ml.docilealligator.infinityforreddit.AppBarStateChangeListener;
+import ml.docilealligator.infinityforreddit.Infinity;
+import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
+import ml.docilealligator.infinityforreddit.SubredditDatabase.SubredditViewModel;
+import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
+
+public class ViewSidebarActivity extends BaseActivity {
+
+    public static final String EXTRA_SUBREDDIT_NAME = "ESN";
+    @BindView(R.id.appbar_layout_view_sidebar_activity)
+    AppBarLayout appBarLayout;
+    @BindView(R.id.toolbar_view_sidebar_activity)
+    Toolbar toolbar;
+    @BindView(R.id.markdown_recycler_view_view_sidebar_activity)
+    RecyclerView markdownRecyclerView;
+    @Inject
+    RedditDataRoomDatabase mRedditDataRoomDatabase;
+    @Inject
+    SharedPreferences mSharedPreferences;
+    private SubredditViewModel mSubredditViewModel;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        ((Infinity) getApplication()).getAppComponent().inject(this);
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_view_sidebar);
+
+        ButterKnife.bind(this);
+
+        Resources resources = getResources();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1
+                && (resources.getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT
+                || resources.getBoolean(R.bool.isTablet))
+                && mSharedPreferences.getBoolean(SharedPreferencesUtils.IMMERSIVE_INTERFACE_KEY, true)) {
+            Window window = getWindow();
+            window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+
+            boolean lightNavBar = false;
+            if ((resources.getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK) != Configuration.UI_MODE_NIGHT_YES) {
+                lightNavBar = true;
+            }
+            boolean finalLightNavBar = lightNavBar;
+
+            View decorView = window.getDecorView();
+            if (finalLightNavBar) {
+                decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
+            }
+            appBarLayout.addOnOffsetChangedListener(new AppBarStateChangeListener() {
+                @Override
+                public void onStateChanged(AppBarLayout appBarLayout, AppBarStateChangeListener.State state) {
+                    if (state == State.COLLAPSED) {
+                        if (finalLightNavBar) {
+                            decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR | View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
+                        }
+                    } else if (state == State.EXPANDED) {
+                        if (finalLightNavBar) {
+                            decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR);
+                        }
+                    }
+                }
+            });
+
+            int statusBarResourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
+            if (statusBarResourceId > 0) {
+                ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) toolbar.getLayoutParams();
+                params.topMargin = getResources().getDimensionPixelSize(statusBarResourceId);
+                toolbar.setLayoutParams(params);
+            }
+        }
+
+        String subredditName = getIntent().getStringExtra(EXTRA_SUBREDDIT_NAME);
+        if (subredditName == null) {
+            Toast.makeText(this, R.string.error_getting_subreddit_name, Toast.LENGTH_SHORT).show();
+            finish();
+            return;
+        }
+
+        toolbar.setTitle("r/" + subredditName);
+        setSupportActionBar(toolbar);
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+        Markwon markwon = Markwon.builder(this)
+                .usePlugin(new AbstractMarkwonPlugin() {
+                    @Override
+                    public void configureConfiguration(@NonNull MarkwonConfiguration.Builder builder) {
+                        builder.linkResolver((view, link) -> {
+                            Intent intent = new Intent(ViewSidebarActivity.this, LinkResolverActivity.class);
+                            Uri uri = Uri.parse(link);
+                            if (uri.getScheme() == null && uri.getHost() == null) {
+                                intent.setData(LinkResolverActivity.getRedditUriByPath(link));
+                            } else {
+                                intent.setData(uri);
+                            }
+                            ViewSidebarActivity.this.startActivity(intent);
+                        }).urlProcessor(new UrlProcessorRelativeToAbsolute("https://www.reddit.com"));
+                    }
+                })
+                .usePlugin(StrikethroughPlugin.create())
+                .usePlugin(LinkifyPlugin.create(Linkify.WEB_URLS))
+                .usePlugin(SimpleExtPlugin.create(plugin ->
+                                plugin.addExtension(1, '^', (configuration, props) -> {
+                                    return new SuperscriptSpan();
+                                })
+                        )
+                )
+                .usePlugin(TableEntryPlugin.create(this))
+                .build();
+        MarkwonAdapter markwonAdapter = MarkwonAdapter.builder(R.layout.adapter_default_entry, R.id.text)
+                .include(TableBlock.class, TableEntry.create(builder -> builder
+                        .tableLayout(R.layout.adapter_table_block, R.id.table_layout)
+                        .textLayoutIsRoot(R.layout.view_table_entry_cell)))
+                .build();
+
+        markdownRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+        markdownRecyclerView.setAdapter(markwonAdapter);
+
+        mSubredditViewModel = new ViewModelProvider(this,
+                new SubredditViewModel.Factory(getApplication(), mRedditDataRoomDatabase, subredditName))
+                .get(SubredditViewModel.class);
+        mSubredditViewModel.getSubredditLiveData().observe(this, subredditData -> {
+            if (subredditData != null) {
+                markwonAdapter.setMarkdown(markwon, subredditData.getSidebarDescription());
+                markwonAdapter.notifyDataSetChanged();
+            }
+        });
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
+            finish();
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public SharedPreferences getSharedPreferences() {
+        return mSharedPreferences;
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewSubredditDetailActivity.java

@@ -548,6 +548,11 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
             case R.id.action_change_post_layout_view_subreddit_detail_activity:
                 postLayoutBottomSheetFragment.show(getSupportFragmentManager(), postLayoutBottomSheetFragment.getTag());
                 return true;
+            case R.id.action_view_side_bar_view_subreddit_detail_activity:
+                Intent sidebarIntent = new Intent(this, ViewSidebarActivity.class);
+                sidebarIntent.putExtra(ViewSidebarActivity.EXTRA_SUBREDDIT_NAME, subredditName);
+                startActivity(sidebarIntent);
+                return true;
         }
         return false;
     }

app/src/main/java/ml/docilealligator/infinityforreddit/AppComponent.java

@@ -29,6 +29,7 @@ import ml.docilealligator.infinityforreddit.Activity.ViewImageActivity;
 import ml.docilealligator.infinityforreddit.Activity.ViewMessageActivity;
 import ml.docilealligator.infinityforreddit.Activity.ViewMultiRedditDetailActivity;
 import ml.docilealligator.infinityforreddit.Activity.ViewPostDetailActivity;
+import ml.docilealligator.infinityforreddit.Activity.ViewSidebarActivity;
 import ml.docilealligator.infinityforreddit.Activity.ViewSubredditDetailActivity;
 import ml.docilealligator.infinityforreddit.Activity.ViewUserDetailActivity;
 import ml.docilealligator.infinityforreddit.Fragment.CommentsListingFragment;
@@ -122,4 +123,6 @@ public interface AppComponent {
     void inject(MultiRedditListingActivity multiRedditListingActivity);
 
     void inject(ViewMultiRedditDetailActivity viewMultiRedditDetailActivity);
+
+    void inject(ViewSidebarActivity viewSidebarActivity);
 }

app/src/main/java/ml/docilealligator/infinityforreddit/ParseSubredditData.java

@@ -24,6 +24,7 @@ class ParseSubredditData {
         String id = subredditDataJsonObject.getString(JSONUtils.NAME_KEY);
         String subredditFullName = subredditDataJsonObject.getString(JSONUtils.DISPLAY_NAME);
         String description = subredditDataJsonObject.getString(JSONUtils.PUBLIC_DESCRIPTION_KEY).trim();
+        String sidebarDescription = subredditDataJsonObject.getString(JSONUtils.DESCRIPTION_KEY).trim();
 
         String bannerImageUrl;
         if (subredditDataJsonObject.isNull(JSONUtils.BANNER_BACKGROUND_IMAGE_KEY)) {
@@ -50,7 +51,8 @@ class ParseSubredditData {
             nSubscribers = subredditDataJsonObject.getInt(JSONUtils.SUBSCRIBERS_KEY);
         }
 
-        return new SubredditData(id, subredditFullName, iconUrl, bannerImageUrl, description, nSubscribers);
+        return new SubredditData(id, subredditFullName, iconUrl, bannerImageUrl, description,
+                sidebarDescription, nSubscribers);
     }
 
     interface ParseSubredditDataListener {

app/src/main/java/ml/docilealligator/infinityforreddit/ParseSubscribedThing.java

@@ -97,9 +97,11 @@ class ParseSubscribedThing {
                     } else {
                         String subredditFullName = data.getString(JSONUtils.DISPLAY_NAME);
                         String description = data.getString(JSONUtils.PUBLIC_DESCRIPTION_KEY).trim();
+                        String sidebarDescription = data.getString(JSONUtils.DESCRIPTION_KEY);
                         int nSubscribers = data.getInt(JSONUtils.SUBSCRIBERS_KEY);
                         newSubscribedSubredditData.add(new SubscribedSubredditData(id, name, iconUrl, accountName, isFavorite));
-                        newSubredditData.add(new SubredditData(id, subredditFullName, iconUrl, bannerImageUrl, description, nSubscribers));
+                        newSubredditData.add(new SubredditData(id, subredditFullName, iconUrl,
+                                bannerImageUrl, description, sidebarDescription, nSubscribers));
                     }
                 }
                 lastItem = jsonResponse.getJSONObject(JSONUtils.DATA_KEY).getString(JSONUtils.AFTER_KEY);

app/src/main/java/ml/docilealligator/infinityforreddit/RedditDataRoomDatabase.java

@@ -23,7 +23,7 @@ import ml.docilealligator.infinityforreddit.User.UserDao;
 import ml.docilealligator.infinityforreddit.User.UserData;
 
 @Database(entities = {Account.class, SubredditData.class, SubscribedSubredditData.class, UserData.class,
-        SubscribedUserData.class, MultiReddit.class}, version = 4)
+        SubscribedUserData.class, MultiReddit.class}, version = 5)
 public abstract class RedditDataRoomDatabase extends RoomDatabase {
     private static RedditDataRoomDatabase INSTANCE;
 
@@ -33,7 +33,7 @@ public abstract class RedditDataRoomDatabase extends RoomDatabase {
                 if (INSTANCE == null) {
                     INSTANCE = Room.databaseBuilder(context.getApplicationContext(),
                             RedditDataRoomDatabase.class, "reddit_data")
-                            .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4)
+                            .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4, MIGRATION_4_5)
                             .build();
                 }
             }
@@ -98,4 +98,12 @@ public abstract class RedditDataRoomDatabase extends RoomDatabase {
                     "FOREIGN KEY(username) REFERENCES accounts(username) ON DELETE CASCADE)");
         }
     };
+
+    private static final Migration MIGRATION_4_5 = new Migration(4, 5) {
+        @Override
+        public void migrate(@NonNull SupportSQLiteDatabase database) {
+            database.execSQL("ALTER TABLE subreddits"
+                    + " ADD COLUMN sidebar_description TEXT");
+        }
+    };
 }

app/src/main/java/ml/docilealligator/infinityforreddit/SubredditDatabase/SubredditData.java

@@ -19,15 +19,19 @@ public class SubredditData {
     private String bannerUrl;
     @ColumnInfo(name = "description")
     private String description;
+    @ColumnInfo(name = "sidebar_description")
+    private String sidebarDescription;
     @ColumnInfo(name = "subscribers_count")
     private int nSubscribers;
 
-    public SubredditData(@NonNull String id, String name, String iconUrl, String bannerUrl, String description, int nSubscribers) {
+    public SubredditData(@NonNull String id, String name, String iconUrl, String bannerUrl,
+                         String description, String sidebarDescription, int nSubscribers) {
         this.id = id;
         this.name = name;
         this.iconUrl = iconUrl;
         this.bannerUrl = bannerUrl;
         this.description = description;
+        this.sidebarDescription = sidebarDescription;
         this.nSubscribers = nSubscribers;
     }
 
@@ -52,6 +56,10 @@ public class SubredditData {
         return description;
     }
 
+    public String getSidebarDescription() {
+        return sidebarDescription;
+    }
+
     public int getNSubscribers() {
         return nSubscribers;
     }

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

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="?attr/backgroundColor"
+    tools:context=".Activity.ViewSidebarActivity">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/appbar_layout_view_sidebar_activity"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="?attr/toolbarAndTabBackgroundColor"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <com.google.android.material.appbar.CollapsingToolbarLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:layout_scrollFlags="scroll|enterAlways"
+            app:titleEnabled="false"
+            app:toolbarId="@+id/toolbar_view_sidebar_activity">
+
+            <androidx.appcompat.widget.Toolbar
+                android:id="@+id/toolbar_view_sidebar_activity"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                app:popupTheme="@style/AppTheme.PopupOverlay"
+                app:navigationIcon="?attr/homeAsUpIndicator" />
+
+        </com.google.android.material.appbar.CollapsingToolbarLayout>
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/markdown_recycler_view_view_sidebar_activity"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp"
+        android:clipToPadding="false"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -2,12 +2,7 @@
 <HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:clipChildren="false"
+    android:layout_margin="16dp"
-    android:clipToPadding="false"
-    android:paddingLeft="16dp"
-    android:paddingTop="8dp"
-    android:paddingRight="16dp"
-    android:paddingBottom="8dp"
     android:scrollbarStyle="outsideInset">
 
     <TableLayout

app/src/main/res/menu/view_subreddit_detail_activity.xml

@@ -34,4 +34,10 @@
         android:orderInCategory="5"
         android:title="@string/action_change_post_layout"
         app:showAsAction="never" />
+
+    <item
+        android:id="@+id/action_view_side_bar_view_subreddit_detail_activity"
+        android:orderInCategory="6"
+        android:title="@string/action_view_side_bar"
+        app:showAsAction="never" />
 </menu>

app/src/main/res/values/strings.xml

@@ -43,6 +43,7 @@
     <string name="action_unmark_spoiler">Unmark Spoiler</string>
     <string name="action_edit_flair">Edit Flair</string>
     <string name="action_change_post_layout">Change Post Layout</string>
+    <string name="action_view_side_bar">View Sidebar</string>
 
     <string name="parse_json_response_error">Error occurred when parsing the JSON response</string>
     <string name="retrieve_token_error">Error Retrieving the token</string>
@@ -384,4 +385,6 @@
     <string name="error_loading_subscriptions">Cannot sync subscriptions</string>
 
     <string name="share_this_app">Check out Infinity for Reddit, an awesome Reddit client!\nhttps://play.google.com/store/apps/details?id=ml.docilealligator.infinityforreddit</string>
+
+    <string name="error_getting_subreddit_name">Error getting subreddit name</string>
 </resources>