First pass for Dialer onboarding flow

* Add OnboardingActivity that controls the onboarding the UI
ensuring that the user grants the necessary permissions before
the Dialer can start.
* Add first pass (no graphics, eyeballed measurements) for the
screens that request for default dialer as well as permissions
* OnboardingActivity is not actually launched at this moment - will
be tied in to the various Dialer activities in a follow up CL.
* Add tests for logic that controls the display of the screens in
anticipation of future additions to the onboarding flow.
* Add mockito library to DialerTests's Android.mk

Bug: 24270592

Change-Id: I00d0f75edaecaa85042b136b0d830b5fbb3a0a73

1 files changed, 245 insertions, 0 deletions

diff --git a/src/com/android/dialer/onboard/OnboardingActivity.java b/src/com/android/dialer/onboard/OnboardingActivity.java
new file mode 100644
index 000000000..75378e99d
--- /dev/null
+++ b/src/com/android/dialer/onboard/OnboardingActivity.java
@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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.android.dialer.onboard;
+
+import static android.Manifest.permission.CALL_PHONE;
+import static android.Manifest.permission.READ_CONTACTS;
+
+import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentTransaction;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.telecom.TelecomManager;
+
+import com.android.contacts.common.util.PermissionsUtil;
+import com.android.dialer.TransactionSafeActivity;
+import com.android.dialer.onboard.OnboardingController.OnboardingScreen;
+import com.android.dialer.onboard.OnboardingController.OnboardingUi;
+import com.android.dialer.util.TelecomUtil;
+import com.android.dialer.R;
+
+/**
+ * Activity hosting the onboarding UX flow that appears when you launch Dialer and you don't have
+ * the necessary permissions to run the app.
+ */
+public class OnboardingActivity extends TransactionSafeActivity implements OnboardingUi,
+        PermissionsChecker, OnboardingFragment.HostInterface {
+    public static final String KEY_ALREADY_REQUESTED_DEFAULT_DIALER =
+            "key_already_requested_default_dialer";
+
+    public static final int SCREEN_DEFAULT_DIALER = 0;
+    public static final int SCREEN_PERMISSIONS = 1;
+    public static final int SCREEN_COUNT = 2;
+
+    private OnboardingController mOnboardingController;
+
+    private DefaultDialerOnboardingScreen mDefaultDialerOnboardingScreen;
+    private PermissionsOnboardingScreen mPermissionsOnboardingScreen;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.onboarding_activity);
+        mOnboardingController = new OnboardingController(this);
+        mDefaultDialerOnboardingScreen = new DefaultDialerOnboardingScreen(this);
+        mPermissionsOnboardingScreen = new PermissionsOnboardingScreen(this);
+        mOnboardingController.addScreen(mDefaultDialerOnboardingScreen);
+        mOnboardingController.addScreen(mPermissionsOnboardingScreen);
+
+        mOnboardingController.showNextScreen();
+    }
+
+    @Override
+    public void showScreen(int screenId) {
+        if (!isSafeToCommitTransactions()) {
+            return;
+        }
+        final Fragment fragment;
+        switch (screenId) {
+            case SCREEN_DEFAULT_DIALER:
+                fragment = mDefaultDialerOnboardingScreen.getFragment();
+                break;
+            case SCREEN_PERMISSIONS:
+                fragment = mPermissionsOnboardingScreen.getFragment();
+                break;
+            default:
+                return;
+        }
+
+        final FragmentTransaction ft = getFragmentManager().beginTransaction();
+        ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
+        ft.replace(R.id.onboarding_fragment_container, fragment);
+        ft.commit();
+    }
+
+    @Override
+    public void completeOnboardingFlow() {
+        final Editor editor = PreferenceManager.getDefaultSharedPreferences(this).edit();
+        editor.putBoolean(KEY_ALREADY_REQUESTED_DEFAULT_DIALER, true).apply();
+        finish();
+    }
+
+    @Override
+    public boolean hasPhonePermissions() {
+        return PermissionsUtil.hasPhonePermissions(this);
+    }
+
+    @Override
+    public boolean hasContactsPermissions() {
+        return PermissionsUtil.hasContactsPermissions(this);
+    }
+
+    @Override
+    public boolean isDefaultOrSystemDialer() {
+        return TelecomUtil.hasModifyPhoneStatePermission(this);
+    }
+
+    @Override
+    public boolean previouslyRequestedDefaultDialer() {
+        final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
+        return preferences.getBoolean(KEY_ALREADY_REQUESTED_DEFAULT_DIALER, false);
+    }
+
+    /**
+     * Triggers the screen-specific logic that should occur when the next button is clicked.
+     */
+    @Override
+    public void onNextClicked(int screenId) {
+        switch (screenId) {
+            case SCREEN_DEFAULT_DIALER:
+                mDefaultDialerOnboardingScreen.onNextClicked(this);
+                break;
+            case SCREEN_PERMISSIONS:
+                mPermissionsOnboardingScreen.onNextClicked(this);
+                break;
+            default:
+                return;
+        }
+    }
+
+    @Override
+    public void onSkipClicked(int screenId) {
+        mOnboardingController.onScreenResult(screenId, false);
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == SCREEN_DEFAULT_DIALER
+                && resultCode == RESULT_OK) {
+            mOnboardingController.onScreenResult(SCREEN_DEFAULT_DIALER, true);
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            int[] grantResults) {
+        boolean allPermissionsGranted = true;
+        if (requestCode == SCREEN_PERMISSIONS) {
+            if (permissions.length == 0 && grantResults.length == 0) {
+                // Cancellation of permissions dialog
+                allPermissionsGranted = false;
+            } else {
+                for (int result : grantResults) {
+                    if (result == PackageManager.PERMISSION_DENIED) {
+                        allPermissionsGranted = false;
+                    }
+                }
+            }
+
+            if (allPermissionsGranted) {
+                mOnboardingController.onScreenResult(SCREEN_PERMISSIONS, true);
+            }
+        }
+    }
+
+    public static class DefaultDialerOnboardingScreen extends OnboardingScreen {
+        private PermissionsChecker mPermissionsChecker;
+
+        public DefaultDialerOnboardingScreen(PermissionsChecker permissionsChecker) {
+            mPermissionsChecker = permissionsChecker;
+        }
+
+        @Override
+        public boolean shouldShowScreen() {
+            return !mPermissionsChecker.previouslyRequestedDefaultDialer()
+                    && !mPermissionsChecker.isDefaultOrSystemDialer();
+        }
+
+        @Override
+        public boolean canSkipScreen() {
+            return true;
+        }
+
+        public Fragment getFragment() {
+            return new OnboardingFragment(
+                    SCREEN_DEFAULT_DIALER,
+                    canSkipScreen(),
+                    R.color.onboarding_default_dialer_screen_background_color,
+                    R.string.request_default_dialer_screen_title,
+                    R.string.request_default_dialer_screen_content
+            );
+        }
+
+        @Override
+        public void onNextClicked(Activity activity) {
+            final Intent intent = new Intent(TelecomManager.ACTION_CHANGE_DEFAULT_DIALER);
+            intent.putExtra(TelecomManager.EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME,
+                    activity.getPackageName());
+            activity.startActivityForResult(intent, SCREEN_DEFAULT_DIALER);
+        }
+    }
+
+    public static class PermissionsOnboardingScreen extends OnboardingScreen {
+        private PermissionsChecker mPermissionsChecker;
+
+        public PermissionsOnboardingScreen(PermissionsChecker permissionsChecker) {
+            mPermissionsChecker = permissionsChecker;
+        }
+
+        @Override
+        public boolean shouldShowScreen() {
+            return !(mPermissionsChecker.hasPhonePermissions()
+                    && mPermissionsChecker.hasContactsPermissions());
+        }
+
+        @Override
+        public boolean canSkipScreen() {
+            return false;
+        }
+
+        public Fragment getFragment() {
+            return new OnboardingFragment(
+                    SCREEN_PERMISSIONS,
+                    canSkipScreen(),
+                    R.color.onboarding_permissions_screen_background_color,
+                    R.string.request_permissions_screen_title,
+                    R.string.request_permissions_screen_content
+            );
+        }
+
+        @Override
+        public void onNextClicked(Activity activity) {
+            activity.requestPermissions(new String[] {CALL_PHONE, READ_CONTACTS},
+                    SCREEN_PERMISSIONS);
+        }
+    }
+}