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Upgrade plugin to use Android plugin API v2 #272

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Upgrade plugin to use Android plugin API v2 #272

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129 changes: 129 additions & 0 deletions ...rc/main/java/com/roughike/facebooklogin/facebooklogin/FacebookLoginMethodCallHandler.java
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@@ -0,0 +1,129 @@
package com.roughike.facebooklogin.facebooklogin;

import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.login.LoginBehavior;
import com.facebook.login.LoginManager;

import java.util.List;
import java.util.Map;

import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.Result;
import io.flutter.plugin.common.PluginRegistry.Registrar;

public class FacebookLoginMethodCallHandler implements MethodChannel.MethodCallHandler {

private static final String ERROR_UNKNOWN_LOGIN_BEHAVIOR = "unknown_login_behavior";

private static final String METHOD_LOG_IN = "logIn";
private static final String METHOD_LOG_OUT = "logOut";
private static final String METHOD_GET_CURRENT_ACCESS_TOKEN = "getCurrentAccessToken";

private static final String ARG_LOGIN_BEHAVIOR = "behavior";
private static final String ARG_PERMISSIONS = "permissions";

private static final String LOGIN_BEHAVIOR_NATIVE_WITH_FALLBACK = "nativeWithFallback";
private static final String LOGIN_BEHAVIOR_NATIVE_ONLY = "nativeOnly";
private static final String LOGIN_BEHAVIOR_WEB_ONLY = "webOnly";
private static final String LOGIN_BEHAVIOR_WEB_VIEW_ONLY = "webViewOnly";

private final FacebookSignInDelegate delegate;

static Registrar registrar;
static ActivityPluginBinding binding;

FacebookLoginMethodCallHandler() {
delegate = new FacebookLoginMethodCallHandler.FacebookSignInDelegate();
}

@Override
public void onMethodCall(MethodCall call, Result result) {
String loginBehaviorStr;
LoginBehavior loginBehavior;

switch (call.method) {
case METHOD_LOG_IN:
loginBehaviorStr = call.argument(ARG_LOGIN_BEHAVIOR);
loginBehavior = loginBehaviorFromString(loginBehaviorStr, result);
List<String> permissions = call.argument(ARG_PERMISSIONS);

delegate.logIn(loginBehavior, permissions, result);
break;
case METHOD_LOG_OUT:
delegate.logOut(result);
break;
case METHOD_GET_CURRENT_ACCESS_TOKEN:
delegate.getCurrentAccessToken(result);
break;
default:
result.notImplemented();
break;
}
}

private LoginBehavior loginBehaviorFromString(String loginBehavior, Result result) {
switch (loginBehavior) {
case LOGIN_BEHAVIOR_NATIVE_WITH_FALLBACK:
return LoginBehavior.NATIVE_WITH_FALLBACK;
case LOGIN_BEHAVIOR_NATIVE_ONLY:
return LoginBehavior.NATIVE_ONLY;
case LOGIN_BEHAVIOR_WEB_ONLY:
return LoginBehavior.WEB_ONLY;
case LOGIN_BEHAVIOR_WEB_VIEW_ONLY:
return LoginBehavior.WEB_VIEW_ONLY;
default:
result.error(
ERROR_UNKNOWN_LOGIN_BEHAVIOR,
"setLoginBehavior called with unknown login behavior: "
+ loginBehavior,
null
);
return null;
}
}

public static final class FacebookSignInDelegate {

private final CallbackManager callbackManager;
private final LoginManager loginManager;
private final FacebookLoginResultDelegate resultDelegate;

public FacebookSignInDelegate() {
this.callbackManager = CallbackManager.Factory.create();
this.loginManager = LoginManager.getInstance();
this.resultDelegate = new FacebookLoginResultDelegate(callbackManager);

loginManager.registerCallback(callbackManager, resultDelegate);
}

public void logIn(
LoginBehavior loginBehavior, List<String> permissions, Result result) {
resultDelegate.setPendingResult(METHOD_LOG_IN, result);

loginManager.setLoginBehavior(loginBehavior);
if (registrar != null) {
registrar.addActivityResultListener(resultDelegate);
loginManager.logIn(registrar.activity(), permissions);
} else if (binding != null) {
binding.addActivityResultListener(resultDelegate);
loginManager.logIn(binding.getActivity(), permissions);
}
}

public void logOut(Result result) {
loginManager.logOut();
result.success(null);
}

public void getCurrentAccessToken(Result result) {
AccessToken accessToken = AccessToken.getCurrentAccessToken();
Map<String, Object> tokenMap = FacebookLoginResults.accessToken(accessToken);

result.success(tokenMap);
}
}

}
148 changes: 44 additions & 104 deletions android/src/main/java/com/roughike/facebooklogin/facebooklogin/FacebookLoginPlugin.java
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package com.roughike.facebooklogin.facebooklogin;

import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.login.LoginBehavior;
import com.facebook.login.LoginManager;
import androidx.annotation.NonNull;

import java.util.List;
import java.util.Map;

import io.flutter.plugin.common.MethodCall;
import io.flutter.embedding.engine.plugins.FlutterPlugin;
import io.flutter.embedding.engine.plugins.activity.ActivityAware;
import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
import io.flutter.plugin.common.BinaryMessenger;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
import io.flutter.plugin.common.MethodChannel.Result;
import io.flutter.plugin.common.PluginRegistry.Registrar;

public class FacebookLoginPlugin implements MethodCallHandler {
public class FacebookLoginPlugin implements FlutterPlugin, ActivityAware {
private static final String CHANNEL_NAME = "com.roughike/flutter_facebook_login";

private static final String ERROR_UNKNOWN_LOGIN_BEHAVIOR = "unknown_login_behavior";

private static final String METHOD_LOG_IN = "logIn";
private static final String METHOD_LOG_OUT = "logOut";
private static final String METHOD_GET_CURRENT_ACCESS_TOKEN = "getCurrentAccessToken";

private static final String ARG_LOGIN_BEHAVIOR = "behavior";
private static final String ARG_PERMISSIONS = "permissions";

private static final String LOGIN_BEHAVIOR_NATIVE_WITH_FALLBACK = "nativeWithFallback";
private static final String LOGIN_BEHAVIOR_NATIVE_ONLY = "nativeOnly";
private static final String LOGIN_BEHAVIOR_WEB_ONLY = "webOnly";
private static final String LOGIN_BEHAVIOR_WEB_VIEW_ONLY = "webViewOnly";

private final FacebookSignInDelegate delegate;

private FacebookLoginPlugin(Registrar registrar) {
delegate = new FacebookSignInDelegate(registrar);
}
private MethodChannel channel;
private FacebookLoginMethodCallHandler handler;

/* -------------- Old API Behaviour -------------- */
public static void registerWith(Registrar registrar) {
final FacebookLoginPlugin plugin = new FacebookLoginPlugin(registrar);
final MethodChannel channel = new MethodChannel(registrar.messenger(), CHANNEL_NAME);
channel.setMethodCallHandler(plugin);
final FacebookLoginPlugin plugin = new FacebookLoginPlugin();
plugin.setupChannel(registrar.messenger(), registrar);
}

/* ----------- FlutterPlugin Behaviour ----------- */
@Override
public void onMethodCall(MethodCall call, Result result) {
String loginBehaviorStr;
LoginBehavior loginBehavior;

switch (call.method) {
case METHOD_LOG_IN:
loginBehaviorStr = call.argument(ARG_LOGIN_BEHAVIOR);
loginBehavior = loginBehaviorFromString(loginBehaviorStr, result);
List<String> permissions = call.argument(ARG_PERMISSIONS);

delegate.logIn(loginBehavior, permissions, result);
break;
case METHOD_LOG_OUT:
delegate.logOut(result);
break;
case METHOD_GET_CURRENT_ACCESS_TOKEN:
delegate.getCurrentAccessToken(result);
break;
default:
result.notImplemented();
break;
}
public void onAttachedToEngine(@NonNull FlutterPluginBinding binding) {
setupChannel(binding.getBinaryMessenger(), null);
}

private LoginBehavior loginBehaviorFromString(String loginBehavior, Result result) {
switch (loginBehavior) {
case LOGIN_BEHAVIOR_NATIVE_WITH_FALLBACK:
return LoginBehavior.NATIVE_WITH_FALLBACK;
case LOGIN_BEHAVIOR_NATIVE_ONLY:
return LoginBehavior.NATIVE_ONLY;
case LOGIN_BEHAVIOR_WEB_ONLY:
return LoginBehavior.WEB_ONLY;
case LOGIN_BEHAVIOR_WEB_VIEW_ONLY:
return LoginBehavior.WEB_VIEW_ONLY;
default:
result.error(
ERROR_UNKNOWN_LOGIN_BEHAVIOR,
"setLoginBehavior called with unknown login behavior: "
+ loginBehavior,
null
);
return null;
}
@Override
public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
teardownChannel();
}

public static final class FacebookSignInDelegate {
private final Registrar registrar;
private final CallbackManager callbackManager;
private final LoginManager loginManager;
private final FacebookLoginResultDelegate resultDelegate;

public FacebookSignInDelegate(Registrar registrar) {
this.registrar = registrar;
this.callbackManager = CallbackManager.Factory.create();
this.loginManager = LoginManager.getInstance();
this.resultDelegate = new FacebookLoginResultDelegate(callbackManager);

loginManager.registerCallback(callbackManager, resultDelegate);
registrar.addActivityResultListener(resultDelegate);
}
private void setupChannel(BinaryMessenger messenger, Registrar registrar) {
FacebookLoginMethodCallHandler.registrar = registrar;
handler = new FacebookLoginMethodCallHandler();
channel = new MethodChannel(messenger, CHANNEL_NAME);
channel.setMethodCallHandler(handler);
}

public void logIn(
LoginBehavior loginBehavior, List<String> permissions, Result result) {
resultDelegate.setPendingResult(METHOD_LOG_IN, result);
private void teardownChannel() {
channel.setMethodCallHandler(null);
channel = null;
}

loginManager.setLoginBehavior(loginBehavior);
loginManager.logIn(registrar.activity(), permissions);
}
/* ----------- ActivityAware Behaviour ----------- */
@Override
public void onAttachedToActivity(@NonNull ActivityPluginBinding binding) {
FacebookLoginMethodCallHandler.binding = binding;
}

public void logOut(Result result) {
loginManager.logOut();
result.success(null);
}
@Override
public void onDetachedFromActivityForConfigChanges() {
FacebookLoginMethodCallHandler.binding = null;
}

public void getCurrentAccessToken(Result result) {
AccessToken accessToken = AccessToken.getCurrentAccessToken();
Map<String, Object> tokenMap = FacebookLoginResults.accessToken(accessToken);
@Override
public void onReattachedToActivityForConfigChanges(@NonNull ActivityPluginBinding binding) {
FacebookLoginMethodCallHandler.binding = binding;
}

result.success(tokenMap);
}
@Override
public void onDetachedFromActivity() {
FacebookLoginMethodCallHandler.binding = null;
}

}