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[js][android] Support multiple listeners on a single ref

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This commit is contained in:
Chris Bianca
2017-04-26 12:21:53 +01:00
parent e8854f1a2e
commit ef306162b4
9 changed files with 395 additions and 360 deletions
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android/src/main/java/io/invertase/firebase/database/RNFirebaseDatabase.java
+28 -33
View File
@@ -34,7 +34,7 @@ import io.invertase.firebase.Utils;
public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
private static final String TAG = "RNFirebaseDatabase";
private HashMap<String, RNFirebaseDatabaseReference> mDBListeners = new HashMap<>();
private HashMap<Integer, RNFirebaseDatabaseReference> mReferences = new HashMap<>();
private HashMap<String, RNFirebaseTransactionHandler> mTransactionHandlers = new HashMap<>();
private FirebaseDatabase mFirebaseDatabase;
@@ -264,7 +264,7 @@ public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
}
/**
*
*
* @param id
* @param updates
*/
@@ -279,61 +279,60 @@ public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
}
@ReactMethod
public void on(final String path, final String modifiersString, final ReadableArray modifiersArray, final String eventName, final Callback callback) {
RNFirebaseDatabaseReference ref = this.getDBHandle(path, modifiersArray, modifiersString);
public void on(final int refId, final String path, final ReadableArray modifiers, final int listenerId, final String eventName, final Callback callback) {
RNFirebaseDatabaseReference ref = this.getDBHandle(refId, path, modifiers);
if (eventName.equals("value")) {
ref.addValueEventListener();
ref.addValueEventListener(listenerId);
} else {
ref.addChildEventListener(eventName);
ref.addChildEventListener(listenerId, eventName);
}
WritableMap resp = Arguments.createMap();
resp.putString("status", "success");
resp.putInt("refId", refId);
resp.putString("handle", path);
callback.invoke(null, resp);
}
@ReactMethod
public void once(final String path, final String modifiersString, final ReadableArray modifiersArray, final String eventName, final Callback callback) {
RNFirebaseDatabaseReference ref = this.getDBHandle(path, modifiersArray, modifiersString);
public void once(final int refId, final String path, final ReadableArray modifiers, final String eventName, final Callback callback) {
RNFirebaseDatabaseReference ref = this.getDBHandle(refId, path, modifiers);
ref.addOnceValueEventListener(callback);
}
/**
* At the time of this writing, off() only gets called when there are no more subscribers to a given path.
* `mListeners` might therefore be out of sync (though javascript isnt listening for those eventTypes, so
* `mListeners` might therefore be out of sync (though javascript isnt listening for those eventNames, so
* it doesn't really matter- just polluting the RN bridge a little more than necessary.
* off() should therefore clean *everything* up
*/
@ReactMethod
public void off(
final String path,
final String modifiersString,
final String eventName,
final int refId,
final ReadableArray listeners,
final Callback callback) {
String key = this.getDBListenerKey(path, modifiersString);
RNFirebaseDatabaseReference r = mDBListeners.get(key);
RNFirebaseDatabaseReference r = mReferences.get(refId);
if (r != null) {
if (eventName == null || "".equals(eventName)) {
r.cleanup();
mDBListeners.remove(key);
} else {
r.removeEventListener(eventName);
List<Object> listenersList = Utils.recursivelyDeconstructReadableArray(listeners);
for (Object l : listenersList) {
Map<String, Object> listener = (Map) l;
int listenerId = ((Double) listener.get("listenerId")).intValue();
String eventName = (String) listener.get("eventName");
r.removeEventListener(listenerId, eventName);
if (!r.hasListeners()) {
mDBListeners.remove(key);
mReferences.remove(refId);
}
}
}
Log.d(TAG, "Removed listener " + path + "/" + modifiersString);
Log.d(TAG, "Removed listeners refId: " + refId + " ; count: " + listeners.size());
WritableMap resp = Arguments.createMap();
resp.putString("handle", path);
resp.putInt("refId", refId);
resp.putString("status", "success");
resp.putString("modifiersString", modifiersString);
//TODO: Remaining listeners
callback.invoke(null, resp);
}
@@ -440,23 +439,19 @@ public class RNFirebaseDatabase extends ReactContextBaseJavaModule {
}
}
private RNFirebaseDatabaseReference getDBHandle(final String path, final ReadableArray modifiersArray, final String modifiersString) {
String key = this.getDBListenerKey(path, modifiersString);
RNFirebaseDatabaseReference r = mDBListeners.get(key);
private RNFirebaseDatabaseReference getDBHandle(final int refId, final String path,
final ReadableArray modifiers) {
RNFirebaseDatabaseReference r = mReferences.get(refId);
if (r == null) {
ReactContext ctx = getReactApplicationContext();
r = new RNFirebaseDatabaseReference(ctx, mFirebaseDatabase, path, modifiersArray, modifiersString);
mDBListeners.put(key, r);
r = new RNFirebaseDatabaseReference(ctx, mFirebaseDatabase, refId, path, modifiers);
mReferences.put(refId, r);
}
return r;
}
private String getDBListenerKey(String path, String modifiersString) {
return path + " | " + modifiersString;
}
@Override
public Map<String, Object> getConstants() {
final Map<String, Object> constants = new HashMap<>();