Skip drawing invisible bullets

app/src/main/java/eu/faircode/email/BulletSpanEx.java

@@ -32,18 +32,30 @@ import androidx.annotation.RequiresApi;
 public class BulletSpanEx extends BulletSpan {
     private int indentWidth;
     private int level;
+    private String ltype;
 
     public BulletSpanEx(int indentWidth, int gapWidth, int color, int level) {
+        this(indentWidth, gapWidth, color, level, null);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.P)
+    public BulletSpanEx(int indentWidth, int gapWidth, int color, int bulletRadius, int level) {
+        this(indentWidth, gapWidth, color, bulletRadius, level, null);
+    }
+
+    public BulletSpanEx(int indentWidth, int gapWidth, int color, int level, String ltype) {
         super(gapWidth, color);
         this.indentWidth = indentWidth;
         this.level = level;
+        this.ltype = ltype;
     }
 
     @RequiresApi(api = Build.VERSION_CODES.P)
-    public BulletSpanEx(int indentWidth, int gapWidth, int color, int bulletRadius, int level) {
+    public BulletSpanEx(int indentWidth, int gapWidth, int color, int bulletRadius, int level, String ltype) {
         super(gapWidth, color, bulletRadius);
         this.indentWidth = indentWidth;
         this.level = level;
+        this.ltype = ltype;
     }
 
     int getLevel() {
@@ -63,6 +75,8 @@ public class BulletSpanEx extends BulletSpan {
 
     @Override
     public void drawLeadingMargin(@NonNull Canvas canvas, @NonNull Paint paint, int x, int dir, int top, int baseline, int bottom, @NonNull CharSequence text, int start, int end, boolean first, @Nullable Layout layout) {
+        if ("none".equals(ltype))
+            return;
         super.drawLeadingMargin(canvas, paint, x + indentWidth * (level + 1) * dir, dir, top, baseline, bottom, text, start, end, first, layout);
     }
 }

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -824,6 +824,10 @@ public class HtmlHelper {
                                 }
                             }
                             break;
+
+                        case "list-style-type":
+                            element.attr("x-list-style", value);
+                            break;
                     }
                 }
 
@@ -2741,10 +2745,11 @@ public class HtmlHelper {
                                     level--;
 
                                 if (type == null || "ul".equals(type.tagName())) {
+                                    String ltype = element.attr("x-list-style");
                                     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.P)
-                                        setSpan(ssb, new BulletSpanEx(bulletIndent, bulletGap, colorAccent, level), start, ssb.length());
+                                        setSpan(ssb, new BulletSpanEx(bulletIndent, bulletGap, colorAccent, level, ltype), start, ssb.length());
                                     else
-                                        setSpan(ssb, new BulletSpanEx(bulletIndent, bulletGap, colorAccent, bulletRadius, level), start, ssb.length());
+                                        setSpan(ssb, new BulletSpanEx(bulletIndent, bulletGap, colorAccent, bulletRadius, level, ltype), start, ssb.length());
                                 } else {
                                     // https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ol
                                     int index = 0;
@@ -2934,7 +2939,8 @@ public class HtmlHelper {
                 .removeAttr("x-column")
                 .removeAttr("x-dashed")
                 .removeAttr("x-tracking")
-                .removeAttr("x-border");
+                .removeAttr("x-border")
+                .removeAttr("x-list-style");
     }
 
     static Spanned fromHtml(@NonNull String html, Context context) {