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allow finding the rootTag of any reactTag inside UIManager

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Summary: added API to in UIManager to find the rootTag/View of any reactTag based on its layout (shadow views) hierarchy (not to be used by JS)

Reviewed By: javache

Differential Revision: D3750410

fbshipit-source-id: 68611e39930d53ece478f25245ddc7f7838daaa6
This commit is contained in:
Kevin Gozali
2016-08-28 22:46:42 -07:00
committed by Facebook Github Bot 9
parent 6729df3f28
commit 35e7a266db
4 changed files with 92 additions and 1 deletions
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21
ReactAndroid/src/main/java/com/facebook/react/uimanager/UIImplementation.java
View File

@@ -13,6 +13,7 @@ import javax.annotation.Nullable;
import java.util.Arrays;
import java.util.List;
import com.facebook.common.logging.FLog;
import com.facebook.csslayout.CSSLayoutContext;
import com.facebook.csslayout.CSSDirection;
import com.facebook.infer.annotation.Assertions;
@@ -24,6 +25,7 @@ import com.facebook.react.bridge.ReadableArray;
import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.bridge.UiThreadUtil;
import com.facebook.react.bridge.WritableArray;
import com.facebook.react.common.ReactConstants;
import com.facebook.react.modules.i18nmanager.I18nUtil;
import com.facebook.react.uimanager.debug.NotThreadSafeViewHierarchyUpdateDebugListener;
import com.facebook.react.uimanager.events.EventDispatcher;
@@ -575,7 +577,6 @@ public class UIImplementation {
mOperationsQueue.enqueueConfigureLayoutAnimation(config, success, error);
}
public void setJSResponder(int reactTag, boolean blockNativeResponder) {
assertViewExists(reactTag, "setJSResponder");
ReactShadowNode node = mShadowNodeRegistry.getNode(reactTag);
@@ -789,4 +790,22 @@ public class UIImplementation {
public void addUIBlock(UIBlock block) {
mOperationsQueue.enqueueUIBlock(block);
}
public int resolveRootTagFromReactTag(int reactTag) {
if (mShadowNodeRegistry.isRootNode(reactTag)) {
return reactTag;
}
ReactShadowNode node = resolveShadowNode(reactTag);
int rootTag = 0;
if (node != null) {
rootTag = node.getRootNode().getReactTag();
} else {
FLog.w(
ReactConstants.TAG,
"Warning : attempted to resolve a non-existent react shadow node. reactTag=" + reactTag);
}
return rootTag;
}
}

13
ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
View File

@@ -518,4 +518,17 @@ public class UIManagerModule extends ReactContextBaseJavaModule implements
public void addUIBlock (UIBlock block) {
mUIImplementation.addUIBlock(block);
}
/**
* Given a reactTag from a component, find its root node tag, if possible.
* Otherwise, this will return 0. If the reactTag belongs to a root node, this
* will return the same reactTag.
*
* @param reactTag the component tag
*
* @return the rootTag
*/
public int resolveRootTagFromReactTag(int reactTag) {
return mUIImplementation.resolveRootTagFromReactTag(reactTag);
}
}