Trigger login

app/build.gradle

@@ -117,6 +117,7 @@ dependencies {
     compile "com.android.support:recyclerview-v7:$dependencyVersions.androidSupportLibrary"
     compile "com.android.support:cardview-v7:$dependencyVersions.androidSupportLibrary"
     compile "com.android.support:design:$dependencyVersions.androidSupportLibrary"
+    compile "com.android.support:customtabs:$dependencyVersions.androidSupportLibrary"
 
     // Dagger 2
     apt "com.squareup:javapoet:$dependencyVersions.javaPoet"

app/src/main/AndroidManifest.xml

@@ -13,36 +13,54 @@
   ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   ~ See the License for the specific language governing permissions and
   ~ limitations under the License.
-  -->
-
+-->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          xmlns:tools="http://schemas.android.com/tools" package="com.futurice.freesound">
+          xmlns:tools="http://schemas.android.com/tools"
+          package="com.futurice.freesound">
 
     <uses-permission android:name="android.permission.INTERNET"/>
 
     <application
             android:name=".app.FreesoundApplication"
-            android:windowSoftInputMode="adjustResize"
             android:allowBackup="false"
             android:icon="@drawable/ic_launcher"
             android:label="@string/app_name"
             android:theme="@style/AppTheme"
+            android:windowSoftInputMode="adjustResize"
             tools:ignore="GoogleAppIndexingWarning">
-        <activity android:name=".feature.home.HomeActivity"
-                  android:label="@string/app_name">
+        <activity
+                android:name=".feature.home.HomeActivity"
+                android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
         <activity android:name=".feature.search.SearchActivity">
-            <!-- Have to use the full classname here otherwise get error in debug
-            "E/NavUtils: getParentActivityIntent: bad parentActivityName 'com.futurice.freesound.debug.feature.home.HomeActivity'" -->
-            <meta-data android:name="android.support.PARENT_ACTIVITY"
-                       android:value="com.futurice.freesound.feature.home.HomeActivity"/>
+
+            <!--
+            Have to use the full classname here otherwise get error in debug
+            "E/NavUtils: getParentActivityIntent: bad parentActivityName 'com.futurice.freesound.debug.feature.home.HomeActivity'"
+            -->
+            <meta-data
+                    android:name="android.support.PARENT_ACTIVITY"
+                    android:value="com.futurice.freesound.feature.home.HomeActivity"/>
         </activity>
         <activity android:name=".feature.details.DetailsActivity"/>
+        <activity android:name=".feature.login.LoginActivity">
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+
+                <data android:host="freesound"
+                      android:scheme="com.futurice.freesound"
+                      android:path="/app-auth"/>
+            </intent-filter>
+        </activity>
     </application>
 
-</manifest>
+</manifest>

app/src/main/java/com/futurice/freesound/feature/home/HomeFragment.java

@@ -26,52 +26,43 @@
 
 import android.os.Bundle;
 import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.TextView;
 
 import javax.inject.Inject;
 
 import butterknife.BindView;
-import butterknife.Unbinder;
 import io.reactivex.disposables.CompositeDisposable;
-import polanski.option.AtomicOption;
 import timber.log.Timber;
 
-import static butterknife.ButterKnife.bind;
 import static com.futurice.freesound.common.utils.Preconditions.get;
 
 public final class HomeFragment extends BindingBaseFragment<HomeFragmentComponent> {
 
-    @Nullable
     @Inject
     HomeFragmentViewModel homeFragmentViewModel;
 
-    @Nullable
     @Inject
     Picasso picasso;
 
-    @Nullable
     @Inject
     SchedulerProvider schedulerProvider;
 
-    @Nullable
     @BindView(R.id.avatar_image)
     ImageView avatarImage;
 
-    @Nullable
     @BindView(R.id.username_textView)
     TextView userName;
 
-    @Nullable
     @BindView(R.id.about_textView)
     TextView about;
 
-    @NonNull
-    private final AtomicOption<Unbinder> unbinder = new AtomicOption<>();
+    @BindView(R.id.login_button)
+    Button login;
 
     @NonNull
     private final DataBinder dataBinder = new DataBinder() {
@@ -118,19 +109,6 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         return inflater.inflate(R.layout.fragment_home, container, false);
     }
 
-    @Override
-    public void onViewCreated(final View view, @Nullable final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-        unbinder.setIfNone(bind(this, view));
-    }
-
-    @Override
-    public void onDestroyView() {
-        unbinder.getAndClear()
-                .ifSome(Unbinder::unbind);
-        super.onDestroyView();
-    }
-
     @Override
     public void inject() {
         component().inject(this);

app/src/main/java/com/futurice/freesound/feature/login/LoginActivity.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017 Futurice GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.futurice.freesound.feature.login;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+
+import javax.inject.Inject;
+
+import polanski.option.Option;
+import polanski.option.function.Action0;
+
+public class LoginActivity extends AppCompatActivity {
+
+    @Inject
+    OAuthLoginProvider oAuthLoginProvider;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        Uri uri = intent.getData();
+
+        Option.ofObj(uri.toString())
+              .ifSome(__ -> handleAuthCallback(uri))
+              .ifNone(cancelAuthRequest());
+
+    }
+
+    private Action0 cancelAuthRequest() {
+        oAuthLoginProvider.cancel();
+    }
+
+    private void handleAuthCallback(final Uri uri) {
+        Option<String> code = Option
+                .ofObj(uri.getQueryParameter(LoginConstants.CODE_AUTH_CALLBACK_QUERY_PARAMETER);
+        Option<String> error = Option
+                .ofObj(uri.getQueryParameter(LoginConstants.ERROR_AUTH_CALLBACK_QUERY_PARAMETER);
+        oAuthLoginProvider.handleAuthorizationResponse(code, error);
+    }
+}
+}

app/src/main/java/com/futurice/freesound/feature/login/LoginConstants.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2017 Futurice GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.futurice.freesound.feature.login;
+
+import com.futurice.freesound.common.InstantiationForbiddenError;
+
+final class LoginConstants {
+
+    static final String CLIENT_ID_AUTH_REQUEST_QUERY_PARAMETER = "client_id";
+    static final String RESPONSE_TYPE_AUTH_REQUEST_QUERY_PARAMETER = "response_type";
+
+    static final String CODE_AUTH_CALLBACK_QUERY_PARAMETER = "code";
+    static final String ERROR_AUTH_CALLBACK_QUERY_PARAMETER = "error";
+
+    private LoginConstants() {
+        throw new InstantiationForbiddenError();
+    }
+}

app/src/main/java/com/futurice/freesound/feature/login/LoginFragment.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2017 Futurice GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.futurice.freesound.feature.login;
+
+import com.futurice.freesound.core.BindingBaseFragment;
+import com.futurice.freesound.viewmodel.DataBinder;
+import com.futurice.freesound.viewmodel.ViewModel;
+
+import android.support.annotation.NonNull;
+
+/**
+ * Created by ptac on 19/02/17.
+ */
+
+public class LoginFragment extends BindingBaseFragment<> {
+
+    @NonNull
+    @Override
+    protected ViewModel viewModel() {
+        return null;
+    }
+
+    @NonNull
+    @Override
+    protected DataBinder dataBinder() {
+        return null;
+    }
+
+    @NonNull
+    @Override
+    protected Object createComponent() {
+        return null;
+    }
+
+    @Override
+    public void inject() {
+
+    }
+}

app/src/main/java/com/futurice/freesound/feature/login/OAuthLoginProvider.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2017 Futurice GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.futurice.freesound.feature.login;
+
+import android.app.Activity;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.support.customtabs.CustomTabsIntent;
+
+import io.reactivex.Completable;
+import io.reactivex.Observable;
+import polanski.option.Option;
+
+final class OAuthLoginProvider {
+
+    @NonNull
+    Completable attemptAuthorize(Activity fromActivity) {
+        return Completable.fromAction(() -> openAuthorizationUrl(fromActivity);
+    }
+
+    @NonNull
+    Completable handleAuthorizationResponse(@NonNull final Option<String> code,
+                                            @NonNull final Option<String> error) {
+
+        if (code.isSome()) {
+
+        } else if (error.isSome()) {
+
+        } else {
+            cancel();
+        }
+        // Either allow or denied.
+        // If allow then make request to API to get token.
+        // If deny show toast saying Login canceled?
+        // Need to show progress for login from the beginning (attemptAuthorize) so that it is smooth and continuous
+        //
+
+    }
+
+    Observable<Fetch<>>
+
+    void cancel() {
+
+    }
+
+    private void openAuthorizationUrl(Activity activity) {
+        Uri appAuthUrl = Uri.parse("https://www.freesound.org/apiv2/oauth2/authorize/")
+                            .buildUpon()
+                            .appendQueryParameter("client_id", "actualClientId")
+                            .appendQueryParameter("response_type", "code")
+                            .build();
+        CustomTabsIntent customTabsIntent = new CustomTabsIntent.Builder()
+                .enableUrlBarHiding()
+                .build();
+        customTabsIntent.launchUrl(activity, appAuthUrl);
+    }
+
+    // Ideally expose request status as
+
+    // Data
+    // In Progress
+    // Failed
+
+    // Have "SDK" that takes Activity as parameters
+    // Gives callbacks which are actually redirected launched Activity
+    // Make these callbacks actually reactive.
+}