com.facebook.react.bridge.ReadableNativeMap Java Examples

/**
 * @return a clone of the {@link ReactShadowNode} received by parameter. The cloned
 *     ReactShadowNode will contain a copy of all the internal data of the original node, but its
 *     props will be overridden with the {@link ReadableMap} received by parameter.
 */
@Nullable
@DoNotStrip
public ReactShadowNode cloneNodeWithNewProps(
    ReactShadowNode node, @Nullable ReadableNativeMap newProps) {
  if (DEBUG) {
    FLog.d(TAG, "cloneNodeWithNewProps \n\tnode: " + node + "\n\tprops: " + newProps);
  }
  SystraceMessage.beginSection(
    Systrace.TRACE_TAG_REACT_JAVA_BRIDGE,
    "FabricUIManager.cloneNodeWithNewProps")
    .flush();
  try {
    ReactShadowNode clone = node.mutableCopyWithNewProps(node.getInstanceHandle(),
          newProps == null ? null : new ReactStylesDiffMap(newProps));
    assertReactShadowNodeCopy(node, clone);
    return clone;
  } catch (Throwable t) {
    handleException(node, t);
    return null;
  } finally{
    Systrace.endSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE);
  }
}
 

/**
 * @return a clone of the {@link ReactShadowNode} received by parameter. The cloned
 *     ReactShadowNode will contain a copy of all the internal data of the original node, but its
 *     props will be overridden with the {@link ReadableMap} received by parameter and its
 *     children set will be empty.
 */
@Nullable
@DoNotStrip
public ReactShadowNode cloneNodeWithNewChildrenAndProps(
    ReactShadowNode node, ReadableNativeMap newProps) {
  if (DEBUG) {
    FLog.d(TAG, "cloneNodeWithNewChildrenAndProps \n\tnode: " + node + "\n\tnewProps: " + newProps);
  }
  SystraceMessage.beginSection(
    Systrace.TRACE_TAG_REACT_JAVA_BRIDGE,
    "FabricUIManager.cloneNodeWithNewChildrenAndProps")
    .flush();
  try {
    ReactShadowNode clone =
        node.mutableCopyWithNewChildrenAndProps(node.getInstanceHandle(),
            newProps == null ? null : new ReactStylesDiffMap(newProps));
    assertReactShadowNodeCopy(node, clone);
    return clone;
  } catch (Throwable t) {
    handleException(node, t);
    return null;
  } finally{
    Systrace.endSection(Systrace.TRACE_TAG_REACT_JAVA_BRIDGE);
  }
}
 

public void testMapIterateOverMapWithBasicTypes() {
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapWithBasicTypes();
  waitForBridgeAndUIIdle();

  List<ReadableMap> calls = mRecordingTestModule.getMapCalls();
  assertEquals(1, calls.size());
  ReadableNativeMap map = (ReadableNativeMap) calls.get(0);
  assertNotNull(map);

  ReadableMapKeySetIterator mapIterator = map.keySetIterator();
  Set<String> keys = new HashSet<String>();
  while (mapIterator.hasNextKey()) {
    keys.add(mapIterator.nextKey());
  }

  Set<String> expectedKeys = new HashSet<String>(
      Arrays.asList("stringKey", "doubleKey", "intKey", "booleanKey", "nullKey"));
  assertEquals(keys, expectedKeys);
}
 

public void testMapIterateOverNestedMaps() {
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnNestedMap();
  waitForBridgeAndUIIdle();

  List<ReadableMap> calls = mRecordingTestModule.getMapCalls();
  assertEquals(1, calls.size());
  ReadableNativeMap map = (ReadableNativeMap) calls.get(0);
  assertNotNull(map);

  ReadableMapKeySetIterator firstLevelIterator = map.keySetIterator();
  String firstLevelKey = firstLevelIterator.nextKey();
  assertEquals(firstLevelKey, "weHaveToGoDeeper");

  ReadableNativeMap secondMap = map.getMap("weHaveToGoDeeper");
  ReadableMapKeySetIterator secondLevelIterator = secondMap.keySetIterator();
  String secondLevelKey = secondLevelIterator.nextKey();
  assertEquals(secondLevelKey, "inception");
  assertTrue(secondMap.getBoolean(secondLevelKey));
}
 

@ReactMethod
public void delete(String path, ReadableMap data, final Promise promise) {
    Log.d(TAG, "delete: " + path);
    HashMap<String,Object> map = ((ReadableNativeMap) data).toHashMap();

    mApiMagnet.delete(path, map, new Api.Callback() {
        @Override
        public void resolve(Object result) {
            promise.resolve(toReactArgument(result));
        }

        @Override
        public void reject(String error) {
            promise.reject(error, error);
        }
    });
}
 

/** Creates a new {@link ReactShadowNode} */
@Nullable
@DoNotStrip
public ReactShadowNode createNode(
    int reactTag, String viewName, int rootTag, ReadableNativeMap props, long eventTarget) {
  if (DEBUG) {
    FLog.d(TAG, "createNode \n\ttag: " + reactTag +
        "\n\tviewName: " + viewName +
        "\n\trootTag: " + rootTag +
        "\n\tprops: " + props);
  }
  try {
    ViewManager viewManager = mViewManagerRegistry.get(viewName);
    ReactShadowNode node = viewManager.createShadowNodeInstance(mReactApplicationContext);
    ReactShadowNode rootNode = getRootNode(rootTag);
    node.setRootTag(rootNode.getReactTag());
    node.setViewClassName(viewName);
    node.setInstanceHandle(eventTarget);
    node.setReactTag(reactTag);
    node.setThemedContext(rootNode.getThemedContext());

    ReactStylesDiffMap styles = updateProps(node, props);

    if (!node.isVirtual()) {
      mUIViewOperationQueue.enqueueCreateView(
          rootNode.getThemedContext(), reactTag, viewName, styles);
    }
    return node;
  } catch (Throwable t) {
    handleException(getRootNode(rootTag), t);
    return null;
  }
}
 

private ReactStylesDiffMap updateProps(ReactShadowNode node, @Nullable ReadableNativeMap props) {
  ReactStylesDiffMap styles = null;
  if (props != null) {
    styles = new ReactStylesDiffMap(props);
    node.updateProperties(styles);
  }
  return styles;
}
 

public void testInvalidIteratorExceptionThrown() {
  mCatalystInstance.getJSModule(TestJSToJavaParametersModule.class).returnMapWithBasicTypes();
  waitForBridgeAndUIIdle();

  List<ReadableMap> calls = mRecordingTestModule.getMapCalls();
  assertEquals(1, calls.size());
  ReadableNativeMap map = (ReadableNativeMap) calls.get(0);
  assertNotNull(map);

  ReadableMapKeySetIterator mapIterator = map.keySetIterator();
  while (mapIterator.hasNextKey()) {
    mapIterator.nextKey();
  }
  assertInvalidIteratorExceptionThrown(mapIterator);
}
 

@Test
public void testCloneNodeWithNewProps() {
  ReactShadowNode node = createViewNode();
  ReadableNativeMap props = null; // TODO(ayc): Figure out how to create a Native map from tests.

  ReactShadowNode clonedNode = mFabricUIManager.cloneNodeWithNewProps(node, props);
}
 

@Test
public void testCloneNodeWithNewChildrenAndProps() {
  ReactShadowNode node = createViewNode();
  ReadableNativeMap props = null;

  ReactShadowNode clonedNode = mFabricUIManager.cloneNodeWithNewChildrenAndProps(node, props);

  assertThat(clonedNode.getChildCount()).isZero();
}
 

static private Object fromReactArgument(Object object) {
    if (object instanceof ReadableNativeArray) return ((ReadableNativeArray) object).toArrayList();
    else if (object instanceof ReadableNativeMap) return ((ReadableNativeMap) object).toHashMap();
    else return null;
}