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/*
* Copyright (C) 2018 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.incallui.rtt.impl;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.RecyclerView.OnScrollListener;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.Chronometer;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;
import com.android.incallui.rtt.impl.RttChatAdapter.MessageListener;
/** RTT chat fragment to show chat bubbles. */
public class RttChatFragment extends Fragment
implements OnClickListener, OnEditorActionListener, TextWatcher, MessageListener {
private static final String ARG_CALL_ID = "call_id";
private static final String ARG_NAME_OR_NUMBER = "name_or_number";
private static final String ARG_SESSION_START_TIME = "session_start_time";
private RecyclerView recyclerView;
private RttChatAdapter adapter;
private EditText editText;
private ImageButton submitButton;
private boolean isClearingInput;
private final OnScrollListener onScrollListener =
new OnScrollListener() {
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if (dy < 0) {
hideKeyboard();
}
}
};
/**
* Create a new instance of RttChatFragment.
*
* @param callId call id of the RTT call.
* @param nameOrNumber name or number of the caller to be displayed
* @param sessionStartTimeMillis start time of RTT session in terms of {@link
* SystemClock#elapsedRealtime}.
* @return new RttChatFragment
*/
public static RttChatFragment newInstance(
String callId, String nameOrNumber, long sessionStartTimeMillis) {
Bundle bundle = new Bundle();
bundle.putString(ARG_CALL_ID, callId);
bundle.putString(ARG_NAME_OR_NUMBER, nameOrNumber);
bundle.putLong(ARG_SESSION_START_TIME, sessionStartTimeMillis);
RttChatFragment instance = new RttChatFragment();
instance.setArguments(bundle);
return instance;
}
@Nullable
@Override
public View onCreateView(
LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.frag_rtt_chat, container, false);
editText = view.findViewById(R.id.rtt_chat_input);
editText.setOnEditorActionListener(this);
editText.addTextChangedListener(this);
recyclerView = view.findViewById(R.id.rtt_recycler_view);
LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
layoutManager.setStackFromEnd(true);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setHasFixedSize(false);
adapter = new RttChatAdapter(getContext(), this);
recyclerView.setAdapter(adapter);
recyclerView.addOnScrollListener(onScrollListener);
submitButton = view.findViewById(R.id.rtt_chat_submit_button);
submitButton.setOnClickListener(this);
submitButton.setEnabled(false);
String nameOrNumber = null;
Bundle bundle = getArguments();
if (bundle != null) {
nameOrNumber = bundle.getString(ARG_NAME_OR_NUMBER, getString(R.string.unknown));
}
TextView nameTextView = view.findViewById(R.id.rtt_name_or_number);
nameTextView.setText(nameOrNumber);
long sessionStartTime = SystemClock.elapsedRealtime();
if (bundle != null) {
sessionStartTime = bundle.getLong(ARG_SESSION_START_TIME, sessionStartTime);
}
Chronometer chronometer = view.findViewById(R.id.rtt_timer);
chronometer.setBase(sessionStartTime);
chronometer.start();
return view;
}
@Override
public void onClick(View v) {
if (v.getId() == R.id.rtt_chat_submit_button) {
adapter.submitLocalMessage();
isClearingInput = true;
editText.setText("");
isClearingInput = false;
}
}
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
submitButton.performClick();
return true;
}
return false;
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (isClearingInput) {
return;
}
adapter.addLocalMessage(RttChatMessage.getChangedString(s, start, before, count));
}
@Override
public void afterTextChanged(Editable s) {
if (TextUtils.isEmpty(s)) {
submitButton.setEnabled(false);
} else {
submitButton.setEnabled(true);
}
}
@Override
public void newMessageAdded() {
recyclerView.smoothScrollToPosition(adapter.getItemCount());
}
private void hideKeyboard() {
InputMethodManager inputMethodManager = getContext().getSystemService(InputMethodManager.class);
if (inputMethodManager.isAcceptingText()) {
inputMethodManager.hideSoftInputFromWindow(
getActivity().getCurrentFocus().getWindowToken(), 0);
}
}
}
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