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/*
* Copyright (C) 2017 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.contactsfragment;
import static android.Manifest.permission.READ_CONTACTS;
import android.app.Fragment;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.Loader;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract.Contacts;
import android.support.annotation.IntDef;
import android.support.annotation.Nullable;
import android.support.v13.app.FragmentCompat;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.RecyclerView.Recycler;
import android.support.v7.widget.RecyclerView.State;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnScrollChangeListener;
import android.view.ViewGroup;
import android.widget.TextView;
import com.android.contacts.common.preference.ContactsPreferences;
import com.android.contacts.common.preference.ContactsPreferences.ChangeListener;
import com.android.dialer.common.Assert;
import com.android.dialer.common.FragmentUtils;
import com.android.dialer.common.LogUtil;
import com.android.dialer.performancereport.PerformanceReport;
import com.android.dialer.util.DialerUtils;
import com.android.dialer.util.IntentUtil;
import com.android.dialer.util.PermissionsUtil;
import com.android.dialer.widget.EmptyContentView;
import com.android.dialer.widget.EmptyContentView.OnEmptyViewActionButtonClickedListener;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Arrays;
/** Fragment containing a list of all contacts. */
public class ContactsFragment extends Fragment
implements LoaderCallbacks<Cursor>,
OnScrollChangeListener,
OnEmptyViewActionButtonClickedListener,
ChangeListener {
/** IntDef to define the OnClick action for contact rows. */
@Retention(RetentionPolicy.SOURCE)
@IntDef({ClickAction.INVALID, ClickAction.OPEN_CONTACT_CARD})
public @interface ClickAction {
int INVALID = 0;
/** Open contact card on click. */
int OPEN_CONTACT_CARD = 1;
}
/** An enum for the different types of headers that be inserted at position 0 in the list. */
@Retention(RetentionPolicy.SOURCE)
@IntDef({Header.NONE, Header.ADD_CONTACT})
public @interface Header {
int NONE = 0;
/** Header that allows the user to add a new contact. */
int ADD_CONTACT = 1;
}
public static final int READ_CONTACTS_PERMISSION_REQUEST_CODE = 1;
private static final String EXTRA_HEADER = "extra_header";
private static final String EXTRA_CLICK_ACTION = "extra_click_action";
/**
* Listen to broadcast events about permissions in order to be notified if the READ_CONTACTS
* permission is granted via the UI in another fragment.
*/
private final BroadcastReceiver readContactsPermissionGrantedReceiver =
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
getLoaderManager().initLoader(0, null, ContactsFragment.this);
}
};
private FastScroller fastScroller;
private TextView anchoredHeader;
private RecyclerView recyclerView;
private LinearLayoutManager manager;
private ContactsAdapter adapter;
private EmptyContentView emptyContentView;
private ContactsPreferences contactsPrefs;
private @Header int header;
private @ClickAction int clickAction;
/** Listener for contacts list scroll state. */
public interface OnContactsListScrolledListener {
void onContactsListScrolled(boolean isDragging);
}
/**
* Used to get a configured instance of ContactsFragment.
*
* <p>Current example of this fragment are the contacts tab and in creating a new favorite
* contact. For example, the contacts tab we use:
*
* <ul>
* <li>{@link Header#ADD_CONTACT} to insert a header that allows users to add a contact
* <li>{@link ClickAction#OPEN_CONTACT_CARD} to open contact cards on click
* </ul>
*
* And for the add favorite contact screen we might use:
*
* <ul>
* <li>{@link Header#NONE} so that all rows are contacts (i.e. no header inserted)
* <li>{@link ClickAction#SET_RESULT_AND_FINISH} to send a selected contact to the previous
* activity.
* </ul>
*
* @param header determines the type of header inserted at position 0 in the contacts list
* @param clickAction defines the on click actions on rows that represent contacts
*/
public static ContactsFragment newInstance(@Header int header, @ClickAction int clickAction) {
Assert.checkArgument(clickAction != ClickAction.INVALID, "Invalid click action");
ContactsFragment fragment = new ContactsFragment();
Bundle args = new Bundle();
args.putInt(EXTRA_HEADER, header);
args.putInt(EXTRA_CLICK_ACTION, clickAction);
fragment.setArguments(args);
return fragment;
}
@SuppressWarnings("WrongConstant")
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
contactsPrefs = new ContactsPreferences(getContext());
contactsPrefs.registerChangeListener(this);
header = getArguments().getInt(EXTRA_HEADER);
clickAction = getArguments().getInt(EXTRA_CLICK_ACTION);
}
@Nullable
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_contacts, container, false);
fastScroller = view.findViewById(R.id.fast_scroller);
anchoredHeader = view.findViewById(R.id.header);
recyclerView = view.findViewById(R.id.recycler_view);
adapter = new ContactsAdapter(getContext(), header, clickAction);
recyclerView.setAdapter(adapter);
manager =
new LinearLayoutManager(getContext()) {
@Override
public void onLayoutChildren(Recycler recycler, State state) {
super.onLayoutChildren(recycler, state);
int itemsShown = findLastVisibleItemPosition() - findFirstVisibleItemPosition() + 1;
if (adapter.getItemCount() > itemsShown) {
fastScroller.setVisibility(View.VISIBLE);
recyclerView.setOnScrollChangeListener(ContactsFragment.this);
} else {
fastScroller.setVisibility(View.GONE);
}
}
};
recyclerView.setLayoutManager(manager);
emptyContentView = view.findViewById(R.id.empty_list_view);
emptyContentView.setImage(R.drawable.empty_contacts);
emptyContentView.setActionClickedListener(this);
if (PermissionsUtil.hasContactsReadPermissions(getContext())) {
getLoaderManager().initLoader(0, null, this);
} else {
emptyContentView.setDescription(R.string.permission_no_contacts);
emptyContentView.setActionLabel(R.string.permission_single_turn_on);
emptyContentView.setVisibility(View.VISIBLE);
}
return view;
}
@Override
public void onChange() {
if (getActivity() != null
&& isAdded()
&& PermissionsUtil.hasContactsReadPermissions(getContext())) {
getLoaderManager().restartLoader(0, null, this);
}
}
/** @return a loader according to sort order and display order. */
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
boolean sortOrderPrimary =
(contactsPrefs.getSortOrder() == ContactsPreferences.SORT_ORDER_PRIMARY);
boolean displayOrderPrimary =
(contactsPrefs.getDisplayOrder() == ContactsPreferences.DISPLAY_ORDER_PRIMARY);
String sortKey = sortOrderPrimary ? Contacts.SORT_KEY_PRIMARY : Contacts.SORT_KEY_ALTERNATIVE;
return displayOrderPrimary
? ContactsCursorLoader.createInstanceDisplayNamePrimary(getContext(), sortKey)
: ContactsCursorLoader.createInstanceDisplayNameAlternative(getContext(), sortKey);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
LogUtil.enterBlock("ContactsFragment.onLoadFinished");
if (cursor == null || cursor.getCount() == 0) {
emptyContentView.setDescription(R.string.all_contacts_empty);
emptyContentView.setActionLabel(R.string.all_contacts_empty_add_contact_action);
emptyContentView.setVisibility(View.VISIBLE);
recyclerView.setVisibility(View.GONE);
} else {
emptyContentView.setVisibility(View.GONE);
recyclerView.setVisibility(View.VISIBLE);
adapter.updateCursor(cursor);
PerformanceReport.logOnScrollStateChange(recyclerView);
fastScroller.setup(adapter, manager);
}
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
recyclerView.setAdapter(null);
recyclerView.setOnScrollChangeListener(null);
adapter = null;
contactsPrefs.unregisterChangeListener();
}
/*
* When our recycler view updates, we need to ensure that our row headers and anchored header
* are in the correct state.
*
* The general rule is, when the row headers are shown, our anchored header is hidden. When the
* recycler view is scrolling through a sublist that has more than one element, we want to show
* out anchored header, to create the illusion that our row header has been anchored. In all
* other situations, we want to hide the anchor because that means we are transitioning between
* two sublists.
*/
@Override
public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
fastScroller.updateContainerAndScrollBarPosition(recyclerView);
int firstVisibleItem = manager.findFirstVisibleItemPosition();
int firstCompletelyVisible = manager.findFirstCompletelyVisibleItemPosition();
if (firstCompletelyVisible == RecyclerView.NO_POSITION) {
// No items are visible, so there are no headers to update.
return;
}
String anchoredHeaderString = adapter.getHeaderString(firstCompletelyVisible);
FragmentUtils.getParentUnsafe(this, OnContactsListScrolledListener.class)
.onContactsListScrolled(
recyclerView.getScrollState() == RecyclerView.SCROLL_STATE_DRAGGING
|| fastScroller.isDragStarted());
// If the user swipes to the top of the list very quickly, there is some strange behavior
// between this method updating headers and adapter#onBindViewHolder updating headers.
// To overcome this, we refresh the headers to ensure they are correct.
if (firstVisibleItem == firstCompletelyVisible && firstVisibleItem == 0) {
adapter.refreshHeaders();
anchoredHeader.setVisibility(View.INVISIBLE);
} else if (firstVisibleItem != 0) { // skip the add contact row
if (adapter.getHeaderString(firstVisibleItem).equals(anchoredHeaderString)) {
anchoredHeader.setText(anchoredHeaderString);
anchoredHeader.setVisibility(View.VISIBLE);
getContactHolder(firstVisibleItem).getHeaderView().setVisibility(View.INVISIBLE);
getContactHolder(firstCompletelyVisible).getHeaderView().setVisibility(View.INVISIBLE);
} else {
anchoredHeader.setVisibility(View.INVISIBLE);
getContactHolder(firstVisibleItem).getHeaderView().setVisibility(View.VISIBLE);
getContactHolder(firstCompletelyVisible).getHeaderView().setVisibility(View.VISIBLE);
}
}
}
private ContactViewHolder getContactHolder(int position) {
return ((ContactViewHolder) recyclerView.findViewHolderForAdapterPosition(position));
}
@Override
public void onEmptyViewActionButtonClicked() {
if (emptyContentView.getActionLabel() == R.string.permission_single_turn_on) {
String[] deniedPermissions =
PermissionsUtil.getPermissionsCurrentlyDenied(
getContext(), PermissionsUtil.allContactsGroupPermissionsUsedInDialer);
if (deniedPermissions.length > 0) {
LogUtil.i(
"ContactsFragment.onEmptyViewActionButtonClicked",
"Requesting permissions: " + Arrays.toString(deniedPermissions));
FragmentCompat.requestPermissions(
this, deniedPermissions, READ_CONTACTS_PERMISSION_REQUEST_CODE);
}
} else if (emptyContentView.getActionLabel()
== R.string.all_contacts_empty_add_contact_action) {
// Add new contact
DialerUtils.startActivityWithErrorToast(
getContext(), IntentUtil.getNewContactIntent(), R.string.add_contact_not_available);
} else {
throw Assert.createIllegalStateFailException("Invalid empty content view action label.");
}
}
@Override
public void onRequestPermissionsResult(
int requestCode, String[] permissions, int[] grantResults) {
if (requestCode == READ_CONTACTS_PERMISSION_REQUEST_CODE) {
if (grantResults.length >= 1 && PackageManager.PERMISSION_GRANTED == grantResults[0]) {
// Force a refresh of the data since we were missing the permission before this.
emptyContentView.setVisibility(View.GONE);
getLoaderManager().initLoader(0, null, this);
}
}
}
@Override
public void onStart() {
super.onStart();
PermissionsUtil.registerPermissionReceiver(
getActivity(), readContactsPermissionGrantedReceiver, READ_CONTACTS);
}
@Override
public void onStop() {
PermissionsUtil.unregisterPermissionReceiver(
getActivity(), readContactsPermissionGrantedReceiver);
super.onStop();
}
}
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