From 867ea1bfaf7f409f905889179de90c7e21e08ad2 Mon Sep 17 00:00:00 2001
From: Emil Sjolander <emilsj@fb.com>
Date: Fri, 11 Nov 2016 08:08:28 -0800
Subject: [PATCH] Expose CSSLayoutSetLogger to java

Reviewed By: astreet

Differential Revision: D4153502

fbshipit-source-id: 630909d9d0d36d94d7cd3027476ddb52668b8cc0
---
 .../com/facebook/csslayout/CSSLogger.java     | 27 +++++++++++++++++++
 .../java/com/facebook/csslayout/CSSNode.java  |  6 +++++
 2 files changed, 33 insertions(+)
 create mode 100644 ReactAndroid/src/main/java/com/facebook/csslayout/CSSLogger.java

diff --git a/ReactAndroid/src/main/java/com/facebook/csslayout/CSSLogger.java b/ReactAndroid/src/main/java/com/facebook/csslayout/CSSLogger.java
new file mode 100644
index 000000000..44536c46d
--- /dev/null
+++ b/ReactAndroid/src/main/java/com/facebook/csslayout/CSSLogger.java
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+package com.facebook.csslayout;
+
+import com.facebook.proguard.annotations.DoNotStrip;
+
+/**
+ * Inteface for recieving logs from native layer. Use by setting CSSNode.setLogger(myLogger);
+ * LOG_LEVEL_ERROR indicated a fatal error.
+ */
+public interface CSSLogger {
+  public final int LOG_LEVEL_ERROR = 0;
+  public final int LOG_LEVEL_WARN = 1;
+  public final int LOG_LEVEL_INFO = 2;
+  public final int LOG_LEVEL_DEBUG = 3;
+  public final int LOG_LEVEL_VERBOSE = 4;
+
+  @DoNotStrip
+  void log(int level, String message);
+}
diff --git a/ReactAndroid/src/main/java/com/facebook/csslayout/CSSNode.java b/ReactAndroid/src/main/java/com/facebook/csslayout/CSSNode.java
index 612be2463..9cc47686b 100644
--- a/ReactAndroid/src/main/java/com/facebook/csslayout/CSSNode.java
+++ b/ReactAndroid/src/main/java/com/facebook/csslayout/CSSNode.java
@@ -33,6 +33,12 @@ public class CSSNode implements CSSNodeAPI<CSSNode> {
    * Get native instance count. Useful for testing only.
    */
   static native int jni_CSSNodeGetInstanceCount();
+  static native void jni_CSSLog(int level, String message);
+
+  private static native void jni_CSSLayoutSetLogger(Object logger);
+  public static void setLogger(CSSLogger logger) {
+    jni_CSSLayoutSetLogger(logger);
+  }
 
   private CSSNode mParent;
   private List<CSSNode> mChildren;