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Implement lazy discovery for ViewManagers.

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Reviewed By: kathryngray

Differential Revision: D5865095

fbshipit-source-id: c94970e4cd7aafb20cf844c48feea053ac8b6b0f
This commit is contained in:
Dmitry Zakharov
2017-09-28 09:40:39 -07:00
committed by Facebook Github Bot
parent c4f7ce9afd
commit da30b04703
24 changed files with 469 additions and 169 deletions
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128
ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModuleConstantsHelper.java
View File

@@ -9,14 +9,14 @@
package com.facebook.react.uimanager;
import java.util.List;
import java.util.Map;
import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
import com.facebook.react.common.MapBuilder;
import com.facebook.systrace.Systrace;
import com.facebook.systrace.SystraceMessage;
import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
import java.util.List;
import java.util.Map;
import javax.annotation.Nullable;
/**
* Helps generate constants map for {@link UIManagerModule} by collecting and merging constants from
@@ -24,8 +24,22 @@ import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
*/
/* package */ class UIManagerModuleConstantsHelper {
/* package */ static final String CUSTOM_BUBBLING_EVENT_TYPES_KEY = "customBubblingEventTypes";
/* package */ static final String CUSTOM_DIRECT_EVENT_TYPES_KEY = "customDirectEventTypes";
/* package */ static final String CUSTOM_BUBBLING_EVENTS_KEY = "customBubblingEventTypes";
/* package */ static final String CUSTOM_DIRECT_EVENTS_KEY = "customDirectEventTypes";
/**
* Generates a lazy discovery enabled version of {@link UIManagerModule} constants. It only
* contains a list of view manager names, so that JS side is aware of the managers there are.
* Actual ViewManager instantiation happens when {@code UIManager.SpecificViewManager} call happens.
* The View Manager is then registered on the JS side with the help of
* {@code UIManagerModule.getConstantsForViewManager}.
*/
/* package */ static Map<String, Object> createConstants(
UIManagerModule.ViewManagerResolver resolver) {
Map<String, Object> constants = UIManagerModuleConstants.getConstants();
constants.put("ViewManagerNames", resolver.getViewManagerNames());
return constants;
}
/**
* Generates map of constants that is then exposed by {@link UIManagerModule}.
@@ -39,8 +53,7 @@ import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
* {@link UIManagerModuleConstants}.
* TODO(6845124): Create a test for this
*/
/* package */ static Map<String, Object> createConstants(
List<ViewManager> viewManagers, boolean lazyViewManagersEnabled) {
/* package */ static Map<String, Object> createConstants(List<ViewManager> viewManagers) {
Map<String, Object> constants = UIManagerModuleConstants.getConstants();
// Generic/default event types:
@@ -58,43 +71,22 @@ import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
allDirectEventTypes.putAll(genericDirectEventTypes);
for (ViewManager viewManager : viewManagers) {
final String viewManagerName = viewManager.getName();
SystraceMessage.beginSection(TRACE_TAG_REACT_JAVA_BRIDGE, "constants for ViewManager")
.arg("ViewManager", viewManager.getName())
.flush();
.arg("ViewManager", viewManagerName)
.arg("Lazy", false)
.flush();
try {
Map viewManagerConstants = MapBuilder.newHashMap();
Map viewManagerBubblingEvents = viewManager.getExportedCustomBubblingEventTypeConstants();
if (viewManagerBubblingEvents != null) {
recursiveMerge(allBubblingEventTypes, viewManagerBubblingEvents);
recursiveMerge(viewManagerBubblingEvents, genericBubblingEventTypes);
} else {
viewManagerBubblingEvents = genericBubblingEventTypes;
}
viewManagerConstants.put("bubblingEventTypes", viewManagerBubblingEvents);
Map viewManagerDirectEvents = viewManager.getExportedCustomDirectEventTypeConstants();
if (viewManagerDirectEvents != null) {
recursiveMerge(allDirectEventTypes, viewManagerDirectEvents);
recursiveMerge(viewManagerDirectEvents, genericDirectEventTypes);
} else {
viewManagerDirectEvents = genericDirectEventTypes;
}
viewManagerConstants.put("directEventTypes", viewManagerDirectEvents);
Map customViewConstants = viewManager.getExportedViewConstants();
if (customViewConstants != null) {
viewManagerConstants.put("Constants", customViewConstants);
}
Map viewManagerCommands = viewManager.getCommandsMap();
if (viewManagerCommands != null) {
viewManagerConstants.put("Commands", viewManagerCommands);
}
Map<String, String> viewManagerNativeProps = viewManager.getNativeProps();
if (!viewManagerNativeProps.isEmpty()) {
viewManagerConstants.put("NativeProps", viewManagerNativeProps);
}
Map viewManagerConstants = createConstantsForViewManager(
viewManager,
genericBubblingEventTypes,
genericDirectEventTypes,
allBubblingEventTypes,
allDirectEventTypes);
if (!viewManagerConstants.isEmpty()) {
constants.put(viewManager.getName(), viewManagerConstants);
constants.put(viewManagerName, viewManagerConstants);
}
} finally {
Systrace.endSection(TRACE_TAG_REACT_JAVA_BRIDGE);
@@ -102,13 +94,57 @@ import static com.facebook.systrace.Systrace.TRACE_TAG_REACT_JAVA_BRIDGE;
}
// Used by https://fburl.com/6nskr82o
constants.put(CUSTOM_BUBBLING_EVENT_TYPES_KEY, allBubblingEventTypes);
constants.put(CUSTOM_DIRECT_EVENT_TYPES_KEY, allDirectEventTypes);
constants.put("AndroidLazyViewManagersEnabled", lazyViewManagersEnabled);
constants.put(CUSTOM_BUBBLING_EVENTS_KEY, allBubblingEventTypes);
constants.put(CUSTOM_DIRECT_EVENTS_KEY, allDirectEventTypes);
return constants;
}
/* package */ static Map<String, Object> createConstantsForViewManager(
ViewManager viewManager,
Map defaultBubblingEvents,
Map defaultDirectEvents,
@Nullable Map cumulativeBubblingEventTypes,
@Nullable Map cumulativeDirectEventTypes) {
Map<String, Object> viewManagerConstants = MapBuilder.newHashMap();
Map viewManagerBubblingEvents = viewManager.getExportedCustomBubblingEventTypeConstants();
if (viewManagerBubblingEvents != null) {
if (cumulativeBubblingEventTypes != null) {
recursiveMerge(cumulativeBubblingEventTypes, viewManagerBubblingEvents);
}
recursiveMerge(viewManagerBubblingEvents, defaultBubblingEvents);
} else {
viewManagerBubblingEvents = defaultBubblingEvents;
}
viewManagerConstants.put("bubblingEventTypes", viewManagerBubblingEvents);
Map viewManagerDirectEvents = viewManager.getExportedCustomDirectEventTypeConstants();
if (viewManagerDirectEvents != null) {
if (cumulativeDirectEventTypes != null) {
recursiveMerge(cumulativeDirectEventTypes, viewManagerBubblingEvents);
}
recursiveMerge(viewManagerDirectEvents, defaultDirectEvents);
} else {
viewManagerDirectEvents = defaultDirectEvents;
}
viewManagerConstants.put("directEventTypes", viewManagerDirectEvents);
Map customViewConstants = viewManager.getExportedViewConstants();
if (customViewConstants != null) {
viewManagerConstants.put("Constants", customViewConstants);
}
Map viewManagerCommands = viewManager.getCommandsMap();
if (viewManagerCommands != null) {
viewManagerConstants.put("Commands", viewManagerCommands);
}
Map<String, String> viewManagerNativeProps = viewManager.getNativeProps();
if (!viewManagerNativeProps.isEmpty()) {
viewManagerConstants.put("NativeProps", viewManagerNativeProps);
}
return viewManagerConstants;
}
/**
* Merges {@param source} map into {@param dest} map recursively
*/