From fde7c354494c6f0749b7bb6c6b6585b03d34501f Mon Sep 17 00:00:00 2001
From: Adam Comella <adcom@microsoft.com>
Date: Mon, 14 Nov 2016 21:01:02 -0800
Subject: [PATCH] Make resolveAssetSource public

Summary:
When building a native component which takes an image reference as a prop, `resolveAssetSource` needs to be called on the image reference. If this isn't done, the native component may receive the opaque type returned by `require` (e.g. `require('./foo.png')`) which is useless to the native component. `resolveAssetSource` is used by builtin components that take image references such as `Image`, `WebView` and `MapView`.

This change makes `resolveAssetSource` public so that third-party native components can correctly handle image references.

**Test plan (required)**

Verified that `Image.resolveAssetSource` works in a test app. Also, my team is using this change in our app.

Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/10904

Differential Revision: D4177803

Pulled By: ericvicenti

fbshipit-source-id: ffc511b9340325f7d1111002309cd8558ab8e6b0
---
 Libraries/Image/Image.android.js | 9 ++++++++-
 Libraries/Image/Image.ios.js     | 6 ++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Libraries/Image/Image.android.js b/Libraries/Image/Image.android.js
index bd5b0bd16..c56fa2ce1 100644
--- a/Libraries/Image/Image.android.js
+++ b/Libraries/Image/Image.android.js
@@ -220,7 +220,14 @@ var Image = React.createClass({
      */
     async queryCache(urls: Array<string>): Promise<Map<string, 'memory' | 'disk'>> {
       return await ImageLoader.queryCache(urls);
-    }
+    },
+
+    /**
+     * Resolves an asset reference into an object which has the properties `uri`, `width`,
+     * and `height`. The input may either be a number (opaque type returned by
+     * require('./foo.png')) or an `ImageSource` like { uri: '<http location || file path>' }
+     */
+    resolveAssetSource: resolveAssetSource,
   },
 
   mixins: [NativeMethodsMixin],
diff --git a/Libraries/Image/Image.ios.js b/Libraries/Image/Image.ios.js
index 04c78d6cb..012aa09ad 100644
--- a/Libraries/Image/Image.ios.js
+++ b/Libraries/Image/Image.ios.js
@@ -317,6 +317,12 @@ const Image = React.createClass({
     prefetch(url: string) {
       return ImageViewManager.prefetchImage(url);
     },
+    /**
+     * Resolves an asset reference into an object which has the properties `uri`, `width`,
+     * and `height`. The input may either be a number (opaque type returned by
+     * require('./foo.png')) or an `ImageSource` like { uri: '<http location || file path>' }
+     */
+    resolveAssetSource: resolveAssetSource,
   },
 
   mixins: [NativeMethodsMixin],