Add image spoiler support

Clover/app/src/main/java/org/floens/chan/chan/ChanUrls.java

@@ -48,6 +48,14 @@ public class ChanUrls {
         return "https://t.4cdn.org/" + board + "/" + code + "s.jpg";
     }
 
+    public static String getSpoilerUrl() {
+        return "https://s.4cdn.org/image/spoiler.png";
+    }
+
+    public static String getCustomSpoilerUrl(String board, int value) {
+        return "https://s.4cdn.org/image/spoiler-" + board + value + ".png";
+    }
+
     public static String getCountryFlagUrl(String countryCode) {
         return "https://s.4cdn.org/image/country/" + countryCode.toLowerCase(Locale.ENGLISH) + ".gif";
     }
@@ -56,7 +64,6 @@ public class ChanUrls {
         return "https://s.4cdn.org/image/country/troll/" + countryCode.toLowerCase(Locale.ENGLISH) + ".gif";
     }
 
-
     public static String getBoardsUrl() {
         return "https://a.4cdn.org/boards.json";
     }

Clover/app/src/main/java/org/floens/chan/core/model/Post.java

@@ -28,11 +28,14 @@ import org.jsoup.parser.Parser;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Random;
 
 /**
  * Contains all data needed to represent a single post.
  */
 public class Post {
+    private static final Random random = new Random();
+
     public String board;
     public int no = -1;
     public int resto = -1;
@@ -64,6 +67,7 @@ public class Post {
     public int images = -1;
     public String rawComment;
     public String countryUrl;
+    public boolean spoiler = false;
 
     public boolean deleted = false;
 
@@ -127,9 +131,19 @@ public class Post {
             if (filename == null || ext == null || imageWidth <= 0 || imageHeight <= 0 || tim < 0)
                 return false;
 
-            thumbnailUrl = ChanUrls.getThumbnailUrl(board, Long.toString(tim));
             imageUrl = ChanUrls.getImageUrl(board, Long.toString(tim), ext);
             filename = Parser.unescapeEntities(filename, false);
+
+            if (spoiler) {
+                Board b = ChanApplication.getBoardManager().getBoardByValue(board);
+                if (b.customSpoilers >= 0) {
+                    thumbnailUrl = ChanUrls.getCustomSpoilerUrl(board, random.nextInt(b.customSpoilers) + 1);
+                } else {
+                    thumbnailUrl = ChanUrls.getSpoilerUrl();
+                }
+            } else {
+                thumbnailUrl = ChanUrls.getThumbnailUrl(board, Long.toString(tim));
+            }
         }
 
         if (!TextUtils.isEmpty(country)) {

Clover/app/src/main/java/org/floens/chan/core/net/ChanReaderRequest.java

@@ -349,6 +349,9 @@ public class ChanReaderRequest extends JsonReaderRequest<List<Post>> {
                 case "images":
                     post.images = reader.nextInt();
                     break;
+                case "spoiler":
+                    post.spoiler = reader.nextInt() == 1;
+                    break;
                 default:
                     // Unknown/ignored key
                     //                log("Unknown/ignored key: " + key + ".");

Clover/app/src/main/java/org/floens/chan/ui/fragment/ImageViewFragment.java

@@ -111,7 +111,7 @@ public class ImageViewFragment extends Fragment implements ThumbnailImageViewCal
 
                     imageView.setThumbnail(post.thumbnailUrl);
 
-                    if (ChanPreferences.getImageAutoLoad()) {
+                    if (ChanPreferences.getImageAutoLoad() && !post.spoiler) {
                         load();
                     } else {
                         tapToLoad = true;