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Support for Animated.multiply node

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Summary:This change adds native animated support for Animated.multiply nodes.

Animated.multiply allows for defining nodes that would output a product of values of the input nodes.

**Test Plan**
Run JS tests: `npm test Libraries/Animated/src/__tests__/AnimatedNative-test.js`
Run java tests: `buck test ReactAndroid/src/test/java/com/facebook/react/animated`
Closes https://github.com/facebook/react-native/pull/7071

Differential Revision: D3197663

fb-gh-sync-id: 35f64244a2482c487a81e5e7cd08f3c0e56d9b78
fbshipit-source-id: 35f64244a2482c487a81e5e7cd08f3c0e56d9b78
This commit is contained in:
Krzysztof Magiera
2016-04-19 13:19:27 -07:00
committed by Facebook Github Bot 0
parent 3e2a3ca466
commit ec5dfbf8c7
5 changed files with 150 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
ReactAndroid/src/main/java/com/facebook/react/animated/MultiplicationAnimatedNode.java Normal file
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@@ -0,0 +1,40 @@
package com.facebook.react.animated;
import com.facebook.react.bridge.JSApplicationCausedNativeException;
import com.facebook.react.bridge.ReadableArray;
import com.facebook.react.bridge.ReadableMap;
/**
* Animated node which takes two or more value node as an input and outputs a product of their
* values
*/
/*package*/ class MultiplicationAnimatedNode extends ValueAnimatedNode {
private final NativeAnimatedNodesManager mNativeAnimatedNodesManager;
private final int[] mInputNodes;
public MultiplicationAnimatedNode(
ReadableMap config,
NativeAnimatedNodesManager nativeAnimatedNodesManager) {
mNativeAnimatedNodesManager = nativeAnimatedNodesManager;
ReadableArray inputNodes = config.getArray("input");
mInputNodes = new int[inputNodes.size()];
for (int i = 0; i < mInputNodes.length; i++) {
mInputNodes[i] = inputNodes.getInt(i);
}
}
@Override
public void update() {
mValue = 1;
for (int i = 0; i < mInputNodes.length; i++) {
AnimatedNode animatedNode = mNativeAnimatedNodesManager.getNodeById(mInputNodes[i]);
if (animatedNode != null && animatedNode instanceof ValueAnimatedNode) {
mValue *= ((ValueAnimatedNode) animatedNode).mValue;
} else {
throw new JSApplicationCausedNativeException("Illegal node ID set as an input for " +
"Animated.multiply node");
}
}
}
}

2
ReactAndroid/src/main/java/com/facebook/react/animated/NativeAnimatedNodesManager.java
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@@ -74,6 +74,8 @@ import javax.annotation.Nullable;
node = new PropsAnimatedNode(config, this);
} else if ("addition".equals(type)) {
node = new AdditionAnimatedNode(config, this);
} else if ("multiplication".equals(type)) {
node = new MultiplicationAnimatedNode(config, this);
} else {
throw new JSApplicationIllegalArgumentException("Unsupported node type: " + type);
}