mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Pieter De BaetsandFacebook GitHub Bot
b2105711a0
Summary: `onPointerMove` events get dispatched with an `offset: [x, y]` attribute (API is not yet available in OSS, so subject to change), but `EventAnimationDriver` in RN Android is not able to extract values with such keys (even though the equivalent JS implementation does allow it). (TODO: verify iOS behaviour) Changelog: [General][Added] - Animated.event can be used to extract values with numeric keys from native events Reviewed By: mdvacca Differential Revision: D32531117 fbshipit-source-id: 918a5443c5d8f5f8200d86bb67f84e8bc175c1d3
84 lines
2.9 KiB
Java
84 lines
2.9 KiB
Java
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package com.facebook.react.animated;
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import androidx.annotation.Nullable;
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import com.facebook.react.bridge.ReadableArray;
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import com.facebook.react.bridge.ReadableMap;
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import com.facebook.react.bridge.ReadableType;
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import com.facebook.react.bridge.UnexpectedNativeTypeException;
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import com.facebook.react.bridge.WritableArray;
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import com.facebook.react.bridge.WritableMap;
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import com.facebook.react.uimanager.events.RCTEventEmitter;
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import java.util.List;
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/** Handles updating a {@link ValueAnimatedNode} when an event gets dispatched. */
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/* package */ class EventAnimationDriver implements RCTEventEmitter {
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private List<String> mEventPath;
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/* package */ ValueAnimatedNode mValueNode;
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public EventAnimationDriver(List<String> eventPath, ValueAnimatedNode valueNode) {
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mEventPath = eventPath;
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mValueNode = valueNode;
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}
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@Override
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public void receiveEvent(int targetTag, String eventName, @Nullable WritableMap event) {
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if (event == null) {
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throw new IllegalArgumentException("Native animated events must have event data.");
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}
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// Get the new value for the node by looking into the event map using the provided event path.
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ReadableMap currMap = event;
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ReadableArray currArray = null;
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for (int i = 0; i < mEventPath.size() - 1; i++) {
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if (currMap != null) {
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String key = mEventPath.get(i);
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ReadableType keyType = currMap.getType(key);
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if (keyType == ReadableType.Map) {
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currMap = currMap.getMap(key);
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currArray = null;
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} else if (keyType == ReadableType.Array) {
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currArray = currMap.getArray(key);
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currMap = null;
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} else {
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throw new UnexpectedNativeTypeException(
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"Unexpected type " + keyType + " for key '" + key + "'");
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}
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} else {
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int index = Integer.parseInt(mEventPath.get(i));
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ReadableType keyType = currArray.getType(index);
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if (keyType == ReadableType.Map) {
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currMap = currArray.getMap(index);
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currArray = null;
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} else if (keyType == ReadableType.Array) {
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currArray = currArray.getArray(index);
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currMap = null;
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} else {
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throw new UnexpectedNativeTypeException(
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"Unexpected type " + keyType + " for index '" + index + "'");
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}
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}
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}
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String lastKey = mEventPath.get(mEventPath.size() - 1);
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if (currMap != null) {
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mValueNode.mValue = currMap.getDouble(lastKey);
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} else {
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int lastIndex = Integer.parseInt(lastKey);
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mValueNode.mValue = currArray.getDouble(lastIndex);
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}
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}
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@Override
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public void receiveTouches(
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String eventName, WritableArray touches, WritableArray changedIndices) {
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throw new RuntimeException("receiveTouches is not support by native animated events");
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}
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}
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