[ReactNative] Use network image for new image assets

Libraries/Image/resolveAssetSource.js

@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2015-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.
+ *
+ * @providesModule resolveAssetSource
+ */
+'use strict';
+
+var SourceCode = require('NativeModules').SourceCode;
+
+var _serverURL;
+
+function getServerURL() {
+  if (_serverURL === undefined) {
+    var scriptURL = SourceCode.scriptURL;
+    var serverURLMatch = scriptURL && scriptURL.match(/^https?:\/\/.*?\//);
+    if (serverURLMatch) {
+      _serverURL = serverURLMatch[0];
+    } else {
+      _serverURL = null;
+    }
+  }
+
+  return _serverURL;
+}
+
+// TODO(frantic):
+//   * Use something other than `path`/`isStatic` for asset identification, `__packager_asset`?
+//   * Add cache invalidating hashsum
+//   * Move code that selects scale to client
+function resolveAssetSource(source) {
+  if (source.deprecated) {
+    return {
+      ...source,
+      path: undefined,
+      isStatic: true,
+      deprecated: undefined,
+    };
+  }
+
+  var serverURL = getServerURL();
+  if (source.path) {
+    if (serverURL) {
+      return {
+        ...source,
+        path: undefined,
+        uri: serverURL + source.uri,
+        isStatic: false,
+      };
+    } else {
+      return {
+        ...source,
+        path: undefined,
+        isStatic: true,
+      };
+    }
+  }
+
+  return source;
+}
+
+module.exports = resolveAssetSource;