react app

react-app/node_modules/react/lib/ReactNativeComponent.js

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+/**
+ * Copyright 2014-2015, 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 ReactNativeComponent
+ */
+
+'use strict';
+
+var assign = require("./Object.assign");
+var invariant = require("./invariant");
+
+var autoGenerateWrapperClass = null;
+var genericComponentClass = null;
+// This registry keeps track of wrapper classes around native tags
+var tagToComponentClass = {};
+var textComponentClass = null;
+
+var ReactNativeComponentInjection = {
+  // This accepts a class that receives the tag string. This is a catch all
+  // that can render any kind of tag.
+  injectGenericComponentClass: function(componentClass) {
+    genericComponentClass = componentClass;
+  },
+  // This accepts a text component class that takes the text string to be
+  // rendered as props.
+  injectTextComponentClass: function(componentClass) {
+    textComponentClass = componentClass;
+  },
+  // This accepts a keyed object with classes as values. Each key represents a
+  // tag. That particular tag will use this class instead of the generic one.
+  injectComponentClasses: function(componentClasses) {
+    assign(tagToComponentClass, componentClasses);
+  },
+  // Temporary hack since we expect DOM refs to behave like composites,
+  // for this release.
+  injectAutoWrapper: function(wrapperFactory) {
+    autoGenerateWrapperClass = wrapperFactory;
+  }
+};
+
+/**
+ * Get a composite component wrapper class for a specific tag.
+ *
+ * @param {ReactElement} element The tag for which to get the class.
+ * @return {function} The React class constructor function.
+ */
+function getComponentClassForElement(element) {
+  if (typeof element.type === 'function') {
+    return element.type;
+  }
+  var tag = element.type;
+  var componentClass = tagToComponentClass[tag];
+  if (componentClass == null) {
+    tagToComponentClass[tag] = componentClass = autoGenerateWrapperClass(tag);
+  }
+  return componentClass;
+}
+
+/**
+ * Get a native internal component class for a specific tag.
+ *
+ * @param {ReactElement} element The element to create.
+ * @return {function} The internal class constructor function.
+ */
+function createInternalComponent(element) {
+  ("production" !== process.env.NODE_ENV ? invariant(
+    genericComponentClass,
+    'There is no registered component for the tag %s',
+    element.type
+  ) : invariant(genericComponentClass));
+  return new genericComponentClass(element.type, element.props);
+}
+
+/**
+ * @param {ReactText} text
+ * @return {ReactComponent}
+ */
+function createInstanceForText(text) {
+  return new textComponentClass(text);
+}
+
+/**
+ * @param {ReactComponent} component
+ * @return {boolean}
+ */
+function isTextComponent(component) {
+  return component instanceof textComponentClass;
+}
+
+var ReactNativeComponent = {
+  getComponentClassForElement: getComponentClassForElement,
+  createInternalComponent: createInternalComponent,
+  createInstanceForText: createInstanceForText,
+  isTextComponent: isTextComponent,
+  injection: ReactNativeComponentInjection
+};
+
+module.exports = ReactNativeComponent;