Move ContactListFilterListener back to PeopleActivity

- It's not a good idea to put the listener in a fragment since
  we need to do a lot in PeopleActivity when filter changes, and
  filter may change when fragment is not added (and this is when
  b/31838582 happens).
- Change the style of ProviderStatusListener.

Bug: 31838582
Bug: 31829161
Bug: 30944495

Test: manual
  - follow steps to repro in the first 2 bugs
  - navigate between fragments
  - Add a contact to an account w/o contact and remove the only contact
    from it, to make sure ProviderStatusListener works.

Change-Id: Ie45065152db67bf2c7c7873a72038c6f1145d678
diff --git a/src/com/android/contacts/ContactsDrawerActivity.java b/src/com/android/contacts/ContactsDrawerActivity.java
index 19d1466..b810eec 100644
--- a/src/com/android/contacts/ContactsDrawerActivity.java
+++ b/src/com/android/contacts/ContactsDrawerActivity.java
@@ -583,7 +583,7 @@
         setTitle(getString(R.string.contactsList));
     }
 
-    protected void resetFilter() {
+    private void resetFilter() {
         final Intent intent = new Intent();
         final ContactListFilter filter = AccountFilterUtil.createContactsFilter(this);
         intent.putExtra(AccountFilterActivity.EXTRA_CONTACT_LIST_FILTER, filter);
diff --git a/src/com/android/contacts/activities/PeopleActivity.java b/src/com/android/contacts/activities/PeopleActivity.java
index 8d0ec08..3488c53 100644
--- a/src/com/android/contacts/activities/PeopleActivity.java
+++ b/src/com/android/contacts/activities/PeopleActivity.java
@@ -37,6 +37,7 @@
 import android.support.v4.content.LocalBroadcastManager;
 import android.support.v4.view.GravityCompat;
 import android.support.v4.widget.SwipeRefreshLayout;
+import android.text.TextUtils;
 import android.util.Log;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
@@ -44,6 +45,7 @@
 import android.view.MenuItem;
 import android.view.SubMenu;
 import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
 import android.widget.ImageButton;
 import android.widget.Toast;
 
@@ -52,12 +54,16 @@
 import com.android.contacts.R;
 import com.android.contacts.common.Experiments;
 import com.android.contacts.common.activity.RequestPermissionsActivity;
+import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.list.ContactListFilter;
+import com.android.contacts.common.list.ContactListFilterController.ContactListFilterListener;
 import com.android.contacts.common.list.ProviderStatusWatcher;
 import com.android.contacts.common.list.ProviderStatusWatcher.ProviderStatusListener;
 import com.android.contacts.common.logging.Logger;
 import com.android.contacts.common.logging.ScreenEvent.ScreenType;
 import com.android.contacts.common.model.AccountTypeManager;
+import com.android.contacts.common.model.account.AccountDisplayInfo;
+import com.android.contacts.common.model.account.AccountDisplayInfoFactory;
 import com.android.contacts.common.model.account.AccountWithDataSet;
 import com.android.contacts.common.util.AccountFilterUtil;
 import com.android.contacts.common.util.Constants;
@@ -81,7 +87,7 @@
 /**
  * Displays a list to browse contacts.
  */
-public class PeopleActivity extends ContactsDrawerActivity implements ProviderStatusListener {
+public class PeopleActivity extends ContactsDrawerActivity {
 
     private static final String TAG = "PeopleActivity";
     private static final String TAG_ALL = "contacts-all";
@@ -121,10 +127,11 @@
 
     /**
      * True if this activity instance is a re-created one.  i.e. set true after orientation change.
-     * This is set in {@link #onCreate} for later use in {@link #onStart}.
      */
     private boolean mIsRecreatedInstance;
 
+    private boolean mShouldSwitchToAllContacts;
+
     /** Sequential ID assigned to each instance; used for logging */
     private final int mInstanceId;
     private static final AtomicInteger sNextInstanceId = new AtomicInteger();
@@ -149,7 +156,7 @@
             return;
         }
 
-        final ContactListFilter filter = mAllFragment.getFilter();
+        final ContactListFilter filter = mContactListFilterController.getFilter();
         if (filter != null) {
             final SwipeRefreshLayout swipeRefreshLayout = mAllFragment.getSwipeRefreshLayout();
             if (swipeRefreshLayout == null) {
@@ -177,6 +184,23 @@
         }
     }
 
+    private final ContactListFilterListener mFilterListener = new ContactListFilterListener() {
+        @Override
+        public void onContactListFilterChanged() {
+            final ContactListFilter filter = mContactListFilterController.getFilter();
+            handleFilterChangeForFragment(filter);
+            handleFilterChangeForActivity(filter);
+        }
+    };
+
+    private final ProviderStatusListener mProviderStatusListener = new ProviderStatusListener() {
+        @Override
+        public void onProviderStatusChange() {
+            reloadGroupsAndFiltersIfNeeded();
+            updateViewConfiguration(false);
+        }
+    };
+
     public PeopleActivity() {
         mInstanceId = sNextInstanceId.getAndIncrement();
         mIntentResolver = new ContactsIntentResolver(this);
@@ -227,7 +251,8 @@
             return;
         }
 
-        mProviderStatusWatcher.addListener(this);
+        mContactListFilterController.addListener(mFilterListener);
+        mProviderStatusWatcher.addListener(mProviderStatusListener);
 
         mIsRecreatedInstance = (savedState != null);
 
@@ -425,6 +450,10 @@
     protected void onResume() {
         super.onResume();
 
+        if (mShouldSwitchToAllContacts) {
+            switchToAllContacts();
+        }
+
         mProviderStatusWatcher.start();
         updateViewConfiguration(true);
 
@@ -445,7 +474,8 @@
 
     @Override
     protected void onDestroy() {
-        mProviderStatusWatcher.removeListener(this);
+        mProviderStatusWatcher.removeListener(mProviderStatusListener);
+        mContactListFilterController.removeListener(mFilterListener);
         super.onDestroy();
     }
 
@@ -483,12 +513,6 @@
         }
     }
 
-    @Override
-    public void onProviderStatusChange() {
-        reloadGroupsAndFiltersIfNeeded();
-        updateViewConfiguration(false);
-    }
-
     private void reloadGroupsAndFiltersIfNeeded() {
         final int providerStatus = mProviderStatusWatcher.getProviderStatus();
         final Menu menu = mNavigationView.getMenu();
@@ -656,7 +680,7 @@
             return true;
         }
 
-        if (!AccountFilterUtil.isAllContactsFilter(mAllFragment.getFilter())
+        if (!AccountFilterUtil.isAllContactsFilter(mContactListFilterController.getFilter())
                 && !mAllFragment.isHidden()) {
             // If mAllFragment is hidden, then mContactsUnavailableFragment is visible so we
             // don't need to switch to all contacts.
@@ -773,7 +797,6 @@
         transaction.commit();
         fragmentManager.executePendingTransactions();
 
-        resetFilter();
         showFabWithAnimation(/* showFab */ false);
     }
 
@@ -782,6 +805,7 @@
         if (isInSecondLevel()) {
             popSecondLevel();
         }
+        mShouldSwitchToAllContacts = false;
         mCurrentView = ContactsView.ALL_CONTACTS;
         showFabWithAnimation(/* showFab */ true);
 
@@ -808,4 +832,46 @@
     protected GroupMetaData getGroupMetaData() {
         return mMembersFragment == null ? null : mMembersFragment.getGroupMetaData();
     }
+
+    private void handleFilterChangeForFragment(ContactListFilter filter) {
+        mAllFragment.setFilterAndUpdateTitle(filter);
+        // Scroll to top after filter is changed.
+        mAllFragment.scrollToTop();
+    }
+
+    private void handleFilterChangeForActivity(ContactListFilter filter) {
+        // Set mShouldSwitchToAllContacts to true, so that we can switch to all contacts later.
+        if (filter.isContactsFilterType()) {
+            mShouldSwitchToAllContacts = true;
+        }
+
+        // Set title and check menu in navigation drawer.
+        final String actionBarTitle;
+        if (filter.filterType == ContactListFilter.FILTER_TYPE_DEVICE_CONTACTS) {
+            actionBarTitle = getString(R.string.account_phone);
+        } else if (!TextUtils.isEmpty(filter.accountName)) {
+            actionBarTitle = getActionBarTitleForAccount(filter);
+        } else {
+            actionBarTitle = getString(R.string.contactsList);
+        }
+        setTitle(actionBarTitle);
+        updateFilterMenu(filter);
+
+        if (CompatUtils.isNCompatible()) {
+            getWindow().getDecorView()
+                    .sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
+        }
+        invalidateOptionsMenu();
+    }
+
+    private String getActionBarTitleForAccount(ContactListFilter filter) {
+        final AccountDisplayInfoFactory factory = AccountDisplayInfoFactory
+                .forAllAccounts(this);
+        final AccountDisplayInfo account = factory.getAccountDisplayInfoFor(filter);
+        if (account.hasGoogleAccountType()) {
+            return getString(R.string.title_from_google);
+        }
+        return account.withFormattedName(this, R.string.title_from_other_accounts)
+                .getNameLabel().toString();
+    }
 }
diff --git a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
index dd45fc2..4cd45a7 100644
--- a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
+++ b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
@@ -55,12 +55,10 @@
 import com.android.contacts.R;
 import com.android.contacts.activities.ActionBarAdapter;
 import com.android.contacts.common.Experiments;
-import com.android.contacts.common.compat.CompatUtils;
 import com.android.contacts.common.list.ContactEntryListFragment;
 import com.android.contacts.common.list.ContactListAdapter;
 import com.android.contacts.common.list.ContactListFilter;
 import com.android.contacts.common.list.ContactListFilterController;
-import com.android.contacts.common.list.ContactListFilterController.ContactListFilterListener;
 import com.android.contacts.common.list.ContactListItemView;
 import com.android.contacts.common.list.DefaultContactListAdapter;
 import com.android.contacts.common.list.DirectoryListLoader;
@@ -69,8 +67,6 @@
 import com.android.contacts.common.logging.Logger;
 import com.android.contacts.common.logging.ScreenEvent;
 import com.android.contacts.common.model.AccountTypeManager;
-import com.android.contacts.common.model.account.AccountDisplayInfo;
-import com.android.contacts.common.model.account.AccountDisplayInfoFactory;
 import com.android.contacts.common.model.account.AccountWithDataSet;
 import com.android.contacts.common.util.AccountFilterUtil;
 import com.android.contacts.common.util.ImplicitIntentsUtil;
@@ -138,18 +134,6 @@
     private ContactsRequest mContactsRequest;
     private ContactListFilterController mContactListFilterController;
 
-    private final ContactListFilterListener mFilterListener = new ContactListFilterListener() {
-        @Override
-        public void onContactListFilterChanged() {
-            setFilterAndUpdateTitle(getFilter());
-
-            // Scroll to top after filter is changed.
-            getListView().setSelection(0);
-
-            mActivity.invalidateOptionsMenu();
-        }
-    };
-
     private final ActionBarAdapter.Listener mActionBarListener = new ActionBarAdapter.Listener() {
         @Override
         public void onAction(int action) {
@@ -335,6 +319,12 @@
                 view == mAccountFilterContainer ? View.VISIBLE : View.GONE);
     }
 
+    public void scrollToTop() {
+        if (getListView() != null) {
+            getListView().setSelection(0);
+        }
+    }
+
     @Override
     protected void onItemClick(int position, long id) {
         final Uri uri = getAdapter().getContactUri(position);
@@ -425,7 +415,6 @@
         mIsRecreatedInstance = (savedState != null);
         mContactListFilterController = ContactListFilterController.getInstance(getContext());
         mContactListFilterController.checkFilterValidity(false);
-        mContactListFilterController.addListener(mFilterListener);
         // Use FILTER_TYPE_ALL_ACCOUNTS filter if the instance is not a re-created one.
         // This is useful when user upgrades app while an account filter was
         // stored in sharedPreference in a previous version of Contacts app.
@@ -689,7 +678,7 @@
         }
     }
 
-    private void setFilterAndUpdateTitle(ContactListFilter filter) {
+    public void setFilterAndUpdateTitle(ContactListFilter filter) {
         setFilterAndUpdateTitle(filter, true);
     }
 
@@ -697,39 +686,12 @@
         setContactListFilter(filter);
         updateListFilter(filter, restoreSelectedUri);
 
-        final String actionBarTitle;
-        if (filter.filterType == ContactListFilter.FILTER_TYPE_DEVICE_CONTACTS) {
-            actionBarTitle = getString(R.string.account_phone);
-        } else if (!TextUtils.isEmpty(filter.accountName)) {
-            actionBarTitle = getActionBarTitleForAccount(filter);
-        } else {
-            actionBarTitle = getString(R.string.contactsList);
-        }
-        mActivity.setTitle(actionBarTitle);
-        mActivity.updateFilterMenu(filter);
-
-        if (CompatUtils.isNCompatible()) {
-            mActivity.getWindow().getDecorView()
-                    .sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
-        }
-
         // Determine whether the account has pullToRefresh feature
         if (Flags.getInstance(getContext()).getBoolean(Experiments.PULL_TO_REFRESH)) {
             setSwipeRefreshLayoutEnabledOrNot(filter);
         }
     }
 
-    private String getActionBarTitleForAccount(ContactListFilter filter) {
-        final AccountDisplayInfoFactory factory = AccountDisplayInfoFactory
-                .forAllAccounts(getContext());
-        final AccountDisplayInfo account = factory.getAccountDisplayInfoFor(filter);
-        if (account.hasGoogleAccountType()) {
-            return getString(R.string.title_from_google);
-        }
-        return account.withFormattedName(getContext(), R.string.title_from_other_accounts)
-                .getNameLabel().toString();
-    }
-
     private void setSwipeRefreshLayoutEnabledOrNot(ContactListFilter filter) {
         final SwipeRefreshLayout swipeRefreshLayout = getSwipeRefreshLayout();
         if (swipeRefreshLayout == null) {
@@ -1081,9 +1043,6 @@
         if (mActionBarAdapter != null) {
             mActionBarAdapter.setListener(null);
         }
-        if (mContactListFilterController != null) {
-            mContactListFilterController.removeListener(mFilterListener);
-        }
         super.onDestroy();
     }