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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.widget;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.InputFilter;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.dialer.common.Assert;
import com.android.dialer.common.FragmentUtils;
/** Fragment used to compose call with message fragment. */
public class MessageFragment extends Fragment implements OnClickListener, TextWatcher {
private static final String CHAR_LIMIT_KEY = "char_limit";
private static final String SHOW_SEND_ICON_KEY = "show_send_icon";
private static final String MESSAGE_LIST_KEY = "message_list";
public static final int NO_CHAR_LIMIT = -1;
private EditText customMessage;
private ImageView sendMessage;
private View sendMessageContainer;
private TextView remainingChar;
private int charLimit;
private static MessageFragment newInstance(Builder builder) {
MessageFragment fragment = new MessageFragment();
Bundle args = new Bundle();
args.putInt(CHAR_LIMIT_KEY, builder.charLimit);
args.putBoolean(SHOW_SEND_ICON_KEY, builder.showSendIcon);
args.putStringArray(MESSAGE_LIST_KEY, builder.messages);
fragment.setArguments(args);
return fragment;
}
@Nullable
public String getMessage() {
return customMessage == null ? null : customMessage.getText().toString();
}
@Nullable
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_message, container, false);
sendMessage = (ImageView) view.findViewById(R.id.send_message);
sendMessageContainer = view.findViewById(R.id.count_and_send_container);
if (getArguments().getBoolean(SHOW_SEND_ICON_KEY, false)) {
sendMessage.setVisibility(View.VISIBLE);
sendMessage.setEnabled(false);
sendMessageContainer.setOnClickListener(this);
}
customMessage = (EditText) view.findViewById(R.id.custom_message);
customMessage.addTextChangedListener(this);
charLimit = getArguments().getInt(CHAR_LIMIT_KEY, NO_CHAR_LIMIT);
if (charLimit != NO_CHAR_LIMIT) {
remainingChar = (TextView) view.findViewById(R.id.remaining_characters);
remainingChar.setVisibility(View.VISIBLE);
remainingChar = (TextView) view.findViewById(R.id.remaining_characters);
remainingChar.setText("" + charLimit);
customMessage.setFilters(new InputFilter[] {new InputFilter.LengthFilter(charLimit)});
}
LinearLayout messageContainer = (LinearLayout) view.findViewById(R.id.message_container);
for (String message : getArguments().getStringArray(MESSAGE_LIST_KEY)) {
TextView textView = (TextView) inflater.inflate(R.layout.selectable_text_view, null);
textView.setOnClickListener(this);
textView.setText(message);
messageContainer.addView(textView);
}
return view;
}
@Override
public void onClick(View view) {
if (view == sendMessageContainer) {
if (!TextUtils.isEmpty(customMessage.getText())) {
getListener().onMessageFragmentSendMessage(customMessage.getText().toString());
}
} else if (view.getId() == R.id.selectable_text_view) {
customMessage.setText(((TextView) view).getText());
customMessage.setSelection(customMessage.getText().length());
} else {
Assert.fail("Unknown view clicked");
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
sendMessage.setEnabled(s.length() > 0);
}
@Override
public void afterTextChanged(Editable s) {
if (charLimit != NO_CHAR_LIMIT) {
remainingChar.setText("" + (charLimit - s.length()));
}
getListener().onMessageFragmentAfterTextChange(s.toString());
}
private Listener getListener() {
return FragmentUtils.getParentUnsafe(this, Listener.class);
}
public static Builder builder() {
return new Builder();
}
/** Builder for {@link MessageFragment}. */
public static class Builder {
private String[] messages;
private boolean showSendIcon;
private int charLimit = NO_CHAR_LIMIT;
/**
* @throws NullPointerException if message is null
* @throws IllegalArgumentException if messages.length is outside the range [1,3].
*/
public Builder setMessages(String... messages) {
// Since we only allow up to 3 messages, crash if more are set.
Assert.checkArgument(messages.length > 0 && messages.length <= 3);
this.messages = messages;
return this;
}
public Builder showSendIcon() {
showSendIcon = true;
return this;
}
public Builder setCharLimit(int charLimit) {
this.charLimit = charLimit;
return this;
}
public MessageFragment build() {
return MessageFragment.newInstance(this);
}
}
/** Interface for parent activity to implement to listen for important events. */
public interface Listener {
void onMessageFragmentSendMessage(String message);
void onMessageFragmentAfterTextChange(String message);
}
}
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