Add quotes in messages

app/src/main/AndroidManifest.xml

@@ -26,7 +26,6 @@
         android:configChanges="orientation|screenSize"
         android:icon="@mipmap/ic_launcher_bubbles"
         android:label="@string/app_name"
-        android:hardwareAccelerated="false"
         android:largeHeap="true"
         android:roundIcon="@mipmap/ic_launcher_bubbles_round"
         android:supportsRtl="true"

app/src/main/java/app/fedilab/android/helper/CustomQuoteSpan.java

@@ -0,0 +1,54 @@
+package app.fedilab.android.helper;
+
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.text.Layout;
+import android.text.style.LeadingMarginSpan;
+import android.text.style.LineBackgroundSpan;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Original work from @heath-borders: https://stackoverflow.com/a/29114976/3197259
+ */
+public class CustomQuoteSpan implements LeadingMarginSpan, LineBackgroundSpan {
+    private final int backgroundColor;
+    private final int stripeColor;
+    private final float stripeWidth;
+    private final float gap;
+
+    public CustomQuoteSpan(int backgroundColor, int stripeColor, float stripeWidth, float gap) {
+        this.backgroundColor = backgroundColor;
+        this.stripeColor = stripeColor;
+        this.stripeWidth = stripeWidth;
+        this.gap = gap;
+    }
+
+    @Override
+    public int getLeadingMargin(boolean first) {
+        return (int) (stripeWidth + gap);
+    }
+
+    @Override
+    public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, int top, int baseline, int bottom,
+                                  CharSequence text, int start, int end, boolean first, Layout layout) {
+        Paint.Style style = p.getStyle();
+        int paintColor = p.getColor();
+
+        p.setStyle(Paint.Style.FILL);
+        p.setColor(stripeColor);
+
+        c.drawRect(x, top, x + dir * stripeWidth, bottom, p);
+
+        p.setStyle(style);
+        p.setColor(paintColor);
+    }
+
+    @Override
+    public void drawBackground(@NotNull Canvas c, @NotNull Paint p, int left, int right, int top, int baseline, int bottom, @NotNull CharSequence text, int start, int end, int lnum) {
+        int paintColor = p.getColor();
+        p.setColor(backgroundColor);
+        c.drawRect(left, top, right, bottom, p);
+        p.setColor(paintColor);
+    }
+}

app/src/main/java/app/fedilab/android/helper/SpannableHelper.java

@@ -36,6 +36,7 @@ import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.TextPaint;
 import android.text.style.ClickableSpan;
+import android.text.style.QuoteSpan;
 import android.text.style.URLSpan;
 import android.util.Patterns;
 import android.view.LayoutInflater;
@@ -44,6 +45,7 @@ import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
+import androidx.core.content.ContextCompat;
 import androidx.preference.PreferenceManager;
 
 import com.bumptech.glide.Glide;
@@ -90,6 +92,8 @@ public class SpannableHelper {
         if (text == null) {
             return null;
         }
+        text = text.replaceAll("(&gt;(.*))<\\s?br\\s?/?>", "<blockquote>$2</blockquote>");
+        text = text.replaceAll("(&gt;(.*))<\\s?/p\\s?/?>", "<blockquote>$2</blockquote>");
         Pattern imgPattern = Pattern.compile("<img [^>]*src=\"([^\"]+)\"[^>]*>");
         Matcher matcherImg = imgPattern.matcher(text);
         HashMap<String, String> imagesToReplace = new LinkedHashMap<>();
@@ -144,6 +148,7 @@ public class SpannableHelper {
             linkify(context, content, urlDetails);
             linkifyURL(context, content, urlDetails);
             emails(context, content);
+            replaceQuoteSpans(context, content);
         } else {
             content = new SpannableStringBuilder(text);
         }
@@ -848,6 +853,26 @@ public class SpannableHelper {
         }
     }
 
+
+    private static void replaceQuoteSpans(Context context, Spannable spannable) {
+        QuoteSpan[] quoteSpans = spannable.getSpans(0, spannable.length(), QuoteSpan.class);
+        for (QuoteSpan quoteSpan : quoteSpans) {
+            int start = spannable.getSpanStart(quoteSpan);
+            int end = spannable.getSpanEnd(quoteSpan);
+            int flags = spannable.getSpanFlags(quoteSpan);
+            spannable.removeSpan(quoteSpan);
+            int colord = ContextCompat.getColor(context, R.color.cyanea_accent_reference);
+            spannable.setSpan(new CustomQuoteSpan(
+                            ContextCompat.getColor(context, R.color.transparent),
+                            colord,
+                            10,
+                            20),
+                    start,
+                    end,
+                    flags);
+        }
+    }
+
     /**
      * Convert HTML content to text. Also, it handles click on link
      * This needs to be run asynchronously