From 65968c4a1fbdb16ff88f7ac0b2dfb8558ac7316c Mon Sep 17 00:00:00 2001
From: Cyrus Bakhtiari-Haftlang <cyb@mobilelife.dk>
Date: Mon, 13 Aug 2018 15:20:24 +0200
Subject: [PATCH] Paragraph text can now explicitly be spanned

Background:
Consumers of the library may for instance want line spacing for the
paragraph text but TextView's `lineSpacingMultiplier` and/or
`lineSpacingExtra` apply line spacing to all lines.

With this change, paragraphs may explicitly be spanned with a paragraph
affecting span such as `LineHeightSpan` while the other tags
(e.g. headings) will be unaffected.
---
 .../src/main/java/ru/noties/markwon/SpannableFactory.java   | 3 +++
 .../main/java/ru/noties/markwon/SpannableFactoryDef.java    | 6 ++++++
 .../noties/markwon/renderer/SpannableMarkdownVisitor.java   | 3 ++-
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/library/src/main/java/ru/noties/markwon/SpannableFactory.java b/library/src/main/java/ru/noties/markwon/SpannableFactory.java
index 4cd6b947..fb678e0d 100644
--- a/library/src/main/java/ru/noties/markwon/SpannableFactory.java
+++ b/library/src/main/java/ru/noties/markwon/SpannableFactory.java
@@ -56,6 +56,9 @@ public interface SpannableFactory {
             boolean isHeader,
             boolean isOdd);
 
+    @Nullable
+    Object paragraph(boolean inTightList);
+
     @Nullable
     Object image(
             @NonNull SpannableTheme theme,
diff --git a/library/src/main/java/ru/noties/markwon/SpannableFactoryDef.java b/library/src/main/java/ru/noties/markwon/SpannableFactoryDef.java
index f7672ac7..3da4b7b4 100644
--- a/library/src/main/java/ru/noties/markwon/SpannableFactoryDef.java
+++ b/library/src/main/java/ru/noties/markwon/SpannableFactoryDef.java
@@ -103,6 +103,12 @@ public class SpannableFactoryDef implements SpannableFactory {
         return new TableRowSpan(theme, cells, isHeader, isOdd);
     }
 
+    @Nullable
+    @Override
+    public Object paragraph(boolean inTightList) {
+        return null;
+    }
+
     @Nullable
     @Override
     public Object image(@NonNull SpannableTheme theme, @NonNull String destination, @NonNull AsyncDrawable.Loader loader, @NonNull ImageSizeResolver imageSizeResolver, @Nullable ImageSize imageSize, boolean replacementTextIsLink) {
diff --git a/library/src/main/java/ru/noties/markwon/renderer/SpannableMarkdownVisitor.java b/library/src/main/java/ru/noties/markwon/renderer/SpannableMarkdownVisitor.java
index b984ab71..8291e71d 100644
--- a/library/src/main/java/ru/noties/markwon/renderer/SpannableMarkdownVisitor.java
+++ b/library/src/main/java/ru/noties/markwon/renderer/SpannableMarkdownVisitor.java
@@ -380,14 +380,15 @@ public class SpannableMarkdownVisitor extends AbstractVisitor {
 
     @Override
     public void visit(Paragraph paragraph) {
-
         final boolean inTightList = isInTightList(paragraph);
 
         if (!inTightList) {
             newLine();
         }
 
+        final int length = builder.length();
         visitChildren(paragraph);
+        setSpan(length, factory.paragraph(inTightList));
 
         if (!inTightList) {
             newLine();