Add OrderedListItemSpan measure utility method

app/build.gradle

@@ -36,7 +36,6 @@ dependencies {
         implementation it['okhttp']
         implementation it['prism4j']
         implementation it['debug']
-        implementation it['better-link-movement']
         implementation it['dagger']
     }
 

app/src/main/java/ru/noties/markwon/MainActivity.java

@@ -11,7 +11,6 @@ import android.widget.TextView;
 
 import javax.inject.Inject;
 
-import me.saket.bettermovementmethod.BetterLinkMovementMethod;
 import ru.noties.debug.Debug;
 
 public class MainActivity extends Activity {
@@ -71,7 +70,7 @@ public class MainActivity extends Activity {
                     @Override
                     public void onMarkdownReady(CharSequence markdown) {
 
-                        Markwon.setText(textView, markdown, BetterLinkMovementMethod.getInstance());
+                        Markwon.setText(textView, markdown);
 
                         gifProcessor.process(textView);
 

build.gradle

@@ -26,7 +26,7 @@ task clean(type: Delete) {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion '4.8.1'
+    gradleVersion '4.10.2'
     distributionType 'all'
 }
 
@@ -64,7 +64,6 @@ ext {
             'okhttp'                  : 'com.squareup.okhttp3:okhttp:3.9.0',
             'prism4j'                 : 'ru.noties:prism4j:1.1.0',
             'debug'                   : 'ru.noties:debug:3.0.0@jar',
-            'better-link-movement'    : 'me.saket:better-link-movement-method:2.2.0',
             'dagger'                  : "com.google.dagger:dagger:$daggerVersion"
     ]
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.8.1-all.zip

markwon/src/main/java/ru/noties/markwon/Markwon.java

@@ -15,6 +15,7 @@ import org.commonmark.parser.Parser;
 import java.util.Arrays;
 
 import ru.noties.markwon.renderer.SpannableRenderer;
+import ru.noties.markwon.spans.OrderedListItemSpan;
 import ru.noties.markwon.tasklist.TaskListExtension;
 
 @SuppressWarnings({"WeakerAccess", "unused"})
@@ -100,6 +101,12 @@ public abstract class Markwon {
         unscheduleDrawables(view);
         unscheduleTableRows(view);
 
+        // @since 2.0.1 we must measure ordered-list-item-spans before applying text to a TextView.
+        // if markdown has a lot of ordered list items (or text size is relatively big, or block-margin
+        // is relatively small) then this list won't be rendered properly: it will take correct
+        // layout (width and margin) but will be clipped if margin is not _consistent_ between calls.
+        OrderedListItemSpan.measure(view, text);
+
         // update movement method (for links to be clickable)
         view.setMovementMethod(movementMethod);
         view.setText(text);

markwon/src/main/java/ru/noties/markwon/spans/OrderedListItemSpan.java

@@ -4,10 +4,44 @@ import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.support.annotation.NonNull;
 import android.text.Layout;
+import android.text.Spanned;
+import android.text.TextPaint;
 import android.text.style.LeadingMarginSpan;
+import android.widget.TextView;
 
 public class OrderedListItemSpan implements LeadingMarginSpan {
 
+    /**
+     * Process supplied `text` argument and supply TextView paint to all OrderedListItemSpans
+     * in order for them to measure number.
+     * <p>
+     * NB, this method must be called <em>before</em> setting text to a TextView (`TextView#setText`
+     * internally can trigger new Layout creation which will ask for leading margins right away)
+     *
+     * @param textView to which markdown will be applied
+     * @param text     parsed markdown to process
+     * @since 2.0.1
+     */
+    public static void measure(@NonNull TextView textView, @NonNull CharSequence text) {
+
+        if (!(text instanceof Spanned)) {
+            // nothing to do here
+            return;
+        }
+
+        final OrderedListItemSpan[] spans = ((Spanned) text).getSpans(
+                0,
+                text.length(),
+                OrderedListItemSpan.class);
+
+        if (spans != null) {
+            final TextPaint paint = textView.getPaint();
+            for (OrderedListItemSpan span : spans) {
+                span.margin = (int) (paint.measureText(span.number) + .5F);
+            }
+        }
+    }
+
     private final SpannableTheme theme;
     private final String number;
     private final Paint paint = ObjectsPool.paint();
@@ -27,8 +61,8 @@ public class OrderedListItemSpan implements LeadingMarginSpan {
 
     @Override
     public int getLeadingMargin(boolean first) {
-        // @since 1.0.3
+        // @since 2.0.1 we return maximum value of both (now we should measure number before)
-        return margin > 0 ? margin : theme.getBlockMargin();
+        return Math.max(margin, theme.getBlockMargin());
     }
 
     @Override
@@ -44,11 +78,16 @@ public class OrderedListItemSpan implements LeadingMarginSpan {
 
         theme.applyListItemStyle(paint);
 
-        final int numberWidth = (int) (p.measureText(number) + .5F);
+        // if we could force usage of #measure method then we might want skip this measuring here
+        // but this won't hold against new values that a TextView can receive (new text size for
+        // example...)
+        final int numberWidth = (int) (paint.measureText(number) + .5F);
 
         // @since 1.0.3
         int width = theme.getBlockMargin();
         if (numberWidth > width) {
+            // let's keep this logic here in case a user decided not to call #measure and is fine
+            // with current implementation
             width = numberWidth;
             margin = numberWidth;
         } else {