Display a content preview in PostFragment for text posts.

app/src/main/AndroidManifest.xml

@@ -2,6 +2,14 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="ml.docilealligator.infinityforreddit">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="22" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+
+    <uses-permission-sdk-23 android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
     <application
         android:name=".Infinity"
         android:allowBackup="true"
@@ -249,17 +257,9 @@
         </provider>
 
         <service
-            android:name=".SubmitPostService"
+            android:name=".Service.SubmitPostService"
             android:enabled="true"
             android:exported="false" />
     </application>
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission
-        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        android:maxSdkVersion="22" />
-
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-
-    <uses-permission-sdk-23 android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
 </manifest>

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

@@ -51,7 +51,7 @@ import ml.docilealligator.infinityforreddit.Fragment.FlairBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
-import ml.docilealligator.infinityforreddit.SubmitPostService;
+import ml.docilealligator.infinityforreddit.Service.SubmitPostService;
 import pl.droidsonroids.gif.GifImageView;
 import retrofit2.Retrofit;
 

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

@@ -41,7 +41,7 @@ import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
 import ml.docilealligator.infinityforreddit.RedditUtils;
-import ml.docilealligator.infinityforreddit.SubmitPostService;
+import ml.docilealligator.infinityforreddit.Service.SubmitPostService;
 import pl.droidsonroids.gif.GifImageView;
 import retrofit2.Retrofit;
 

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

@@ -41,7 +41,7 @@ import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
 import ml.docilealligator.infinityforreddit.RedditUtils;
-import ml.docilealligator.infinityforreddit.SubmitPostService;
+import ml.docilealligator.infinityforreddit.Service.SubmitPostService;
 import pl.droidsonroids.gif.GifImageView;
 import retrofit2.Retrofit;
 

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

@@ -53,7 +53,7 @@ import ml.docilealligator.infinityforreddit.Fragment.FlairBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
-import ml.docilealligator.infinityforreddit.SubmitPostService;
+import ml.docilealligator.infinityforreddit.Service.SubmitPostService;
 import pl.droidsonroids.gif.GifImageView;
 import retrofit2.Retrofit;
 

app/src/main/java/ml/docilealligator/infinityforreddit/Adapter/PostRecyclerViewAdapter.java

@@ -468,9 +468,9 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                         break;
                     case Post.TEXT_TYPE:
                         ((DataViewHolder) holder).typeTextView.setText(R.string.text);
-                        if (post.getSelfText() != null && !post.getSelfText().equals("")) {
+                        if (post.getSelfTextPlainTrimmed() != null && !post.getSelfTextPlainTrimmed().equals("")) {
                             ((DataViewHolder) holder).contentTextView.setVisibility(View.VISIBLE);
-                            ((DataViewHolder) holder).contentTextView.setText(post.getSelfText());
+                            ((DataViewHolder) holder).contentTextView.setText(post.getSelfTextPlainTrimmed());
                         }
                         break;
                 }

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

@@ -36,6 +36,7 @@ import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
 import ml.docilealligator.infinityforreddit.Fragment.SubredditListingFragment;
 import ml.docilealligator.infinityforreddit.Fragment.SubscribedSubredditsListingFragment;
 import ml.docilealligator.infinityforreddit.Fragment.UserListingFragment;
+import ml.docilealligator.infinityforreddit.Service.SubmitPostService;
 import ml.docilealligator.infinityforreddit.Settings.MainPreferenceFragment;
 import ml.docilealligator.infinityforreddit.Settings.NotificationPreferenceFragment;
 

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

@@ -14,6 +14,7 @@ public class JSONUtils {
     public static final String NAME_KEY = "name";
     public static final String SUBREDDIT_NAME_PREFIX_KEY = "subreddit_name_prefixed";
     public static final String SELFTEXT_KEY = "selftext";
+    public static final String SELFTEXT_HTML_KEY = "selftext_html";
     public static final String AUTHOR_KEY = "author";
     public static final String LINK_AUTHOR_KEY = "link_author";
     public static final String LINK_FLAIR_TEXT_KEY = "link_flair_text";

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

@@ -7,11 +7,11 @@ import android.content.Context;
 import androidx.core.app.NotificationCompat;
 import androidx.core.app.NotificationManagerCompat;
 
-class NotificationUtils {
+public class NotificationUtils {
-    static final String CHANNEL_SUBMIT_POST = "Submit Post";
+    public static final String CHANNEL_SUBMIT_POST = "Submit Post";
     static final String CHANNEL_ID_NEW_MESSAGES = "new_messages";
     static final String CHANNEL_NEW_MESSAGES = "New Messages";
-    static final int SUBMIT_POST_SERVICE_NOTIFICATION_ID = 10000;
+    public static final int SUBMIT_POST_SERVICE_NOTIFICATION_ID = 10000;
 
     private static final int SUMMARY_BASE_ID_UNREAD_MESSAGE = 0;
     private static final int NOTIFICATION_BASE_ID_UNREAD_MESSAGE = 1;

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

@@ -116,6 +116,16 @@ public class ParsePost {
                     post.setSelfText("");
                 } else {
                     post.setSelfText(Utils.addSubredditAndUserLink(data.getString(JSONUtils.SELFTEXT_KEY).trim()));
+                    if (data.isNull(JSONUtils.SELFTEXT_HTML_KEY)) {
+                        post.setSelfTextPlainTrimmed("");
+                    } else {
+                        String selfTextPlain = Utils.trimTrailingWhitespace(
+                                Html.fromHtml(data.getString(JSONUtils.SELFTEXT_HTML_KEY))).toString();
+                        if (selfTextPlain.length() > 150) {
+                            selfTextPlain = selfTextPlain.substring(150);
+                        }
+                        post.setSelfTextPlainTrimmed(selfTextPlain);
+                    }
                 }
             } else {
                 //No preview link post
@@ -202,6 +212,16 @@ public class ParsePost {
                                 post.setSelfText("");
                             } else {
                                 post.setSelfText(Utils.addSubredditAndUserLink(data.getString(JSONUtils.SELFTEXT_KEY).trim()));
+                                if (data.isNull(JSONUtils.SELFTEXT_HTML_KEY)) {
+                                    post.setSelfTextPlainTrimmed("");
+                                } else {
+                                    String selfTextPlain = Utils.trimTrailingWhitespace(
+                                            Html.fromHtml(data.getString(JSONUtils.SELFTEXT_HTML_KEY))).toString();
+                                    if (selfTextPlain.length() > 150) {
+                                        selfTextPlain = selfTextPlain.substring(150);
+                                    }
+                                    post.setSelfTextPlainTrimmed(selfTextPlain);
+                                }
                             }
                         } else {
                             //Link post

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

@@ -37,6 +37,7 @@ public class Post implements Parcelable {
     private String postTime;
     private String title;
     private String selfText;
+    private String selfTextPlainTrimmed;
     private String previewUrl;
     private String url;
     private String videoUrl;
@@ -162,6 +163,7 @@ public class Post implements Parcelable {
         postTime = in.readString();
         title = in.readString();
         selfText = in.readString();
+        selfTextPlainTrimmed = in.readString();
         previewUrl = in.readString();
         url = in.readString();
         videoUrl = in.readString();
@@ -245,6 +247,14 @@ public class Post implements Parcelable {
         this.selfText = selfText;
     }
 
+    public String getSelfTextPlainTrimmed() {
+        return selfTextPlainTrimmed;
+    }
+
+    public void setSelfTextPlainTrimmed(String selfTextPlainTrimmed) {
+        this.selfTextPlainTrimmed = selfTextPlainTrimmed;
+    }
+
     public String getPreviewUrl() {
         return previewUrl;
     }
@@ -395,6 +405,7 @@ public class Post implements Parcelable {
         parcel.writeString(postTime);
         parcel.writeString(title);
         parcel.writeString(selfText);
+        parcel.writeString(selfTextPlainTrimmed);
         parcel.writeString(previewUrl);
         parcel.writeString(url);
         parcel.writeString(videoUrl);

app/src/main/java/ml/docilealligator/infinityforreddit/Service/SubmitPostService.java

@@ -1,4 +1,4 @@
-package ml.docilealligator.infinityforreddit;
+package ml.docilealligator.infinityforreddit.Service;
 
 import android.app.Notification;
 import android.app.NotificationChannel;
@@ -33,6 +33,11 @@ import javax.inject.Named;
 import ml.docilealligator.infinityforreddit.Event.SubmitImagePostEvent;
 import ml.docilealligator.infinityforreddit.Event.SubmitTextOrLinkPostEvent;
 import ml.docilealligator.infinityforreddit.Event.SubmitVideoPostEvent;
+import ml.docilealligator.infinityforreddit.Infinity;
+import ml.docilealligator.infinityforreddit.NotificationUtils;
+import ml.docilealligator.infinityforreddit.Post;
+import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.SubmitPost;
 import retrofit2.Retrofit;
 
 public class SubmitPostService extends Service {

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

@@ -28,8 +28,8 @@ import retrofit2.Callback;
 import retrofit2.Response;
 import retrofit2.Retrofit;
 
-class SubmitPost {
+public class SubmitPost {
-    static void submitTextOrLinkPost(Retrofit oauthRetrofit, String accessToken,
+    public static void submitTextOrLinkPost(Retrofit oauthRetrofit, String accessToken,
                                             Locale locale, String subredditName, String title, String content,
                                             String flair, boolean isSpoiler, boolean isNSFW, String kind,
                                             SubmitPostListener submitPostListener) {
@@ -37,7 +37,7 @@ class SubmitPost {
                 flair, isSpoiler, isNSFW, kind, null, submitPostListener);
     }
 
-    static void submitImagePost(Retrofit oauthRetrofit, Retrofit uploadMediaRetrofit,
+    public static void submitImagePost(Retrofit oauthRetrofit, Retrofit uploadMediaRetrofit,
                                        String accessToken, Locale locale,
                                        String subredditName, String title, Bitmap image, String flair,
                                        boolean isSpoiler, boolean isNSFW, SubmitPostListener submitPostListener) {
@@ -57,7 +57,7 @@ class SubmitPost {
                 });
     }
 
-    static void submitVideoPost(Retrofit oauthRetrofit, Retrofit uploadMediaRetrofit,
+    public static void submitVideoPost(Retrofit oauthRetrofit, Retrofit uploadMediaRetrofit,
                                        Retrofit uploadVideoRetrofit, String accessToken,
                                        Locale locale, String subredditName, String title, byte[] buffer, String mimeType,
                                        Bitmap posterBitmap, String flair, boolean isSpoiler, boolean isNSFW,
@@ -341,7 +341,7 @@ class SubmitPost {
         }
     }
 
-    interface SubmitPostListener {
+    public interface SubmitPostListener {
         void submitSuccessful(Post post);
 
         void submitFailed(@Nullable String errorMessage);

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

@@ -2,7 +2,21 @@ package ml.docilealligator.infinityforreddit;
 
 public class Utils {
     public static String addSubredditAndUserLink(String markdown) {
-        return markdown.replaceAll("\n", "  ")
+        return markdown.replaceAll("((?<=[\\s])|^)/{0,1}[rRuU]/\\w+/{0,1}", "[$0]($0)");
-                .replaceAll("((?<=[\\s])|^)/{0,1}[ru]/\\w+/{0,1}", "[$0]($0)");
+    }
+
+    public static CharSequence trimTrailingWhitespace(CharSequence source) {
+
+        if(source == null)
+            return "";
+
+        int i = source.length();
+
+        // loop back to the first non-whitespace character
+        do {
+            i--;
+        } while (i >= 0 && Character.isWhitespace(source.charAt(i)));
+
+        return source.subSequence(0, i+1);
     }
 }