1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16
17package com.android.incallui;
18
19import android.app.AlertDialog;
20import android.app.Dialog;
21import android.content.Context;
22import android.content.DialogInterface;
23import android.os.Bundle;
24import android.text.Editable;
25import android.text.TextWatcher;
26import android.view.LayoutInflater;
27import android.view.View;
28import android.view.ViewGroup;
29import android.view.WindowManager;
30import android.widget.AdapterView;
31import android.widget.ArrayAdapter;
32import android.widget.Button;
33import android.widget.EditText;
34import android.widget.ListView;
35
36import com.android.dialer.R;
37
38import java.util.ArrayList;
39import java.util.List;
40
41
42/**
43 * Provides only common interface and functions. Should be derived to implement the actual UI.
44 */
45public abstract class AnswerFragment extends BaseFragment<AnswerPresenter, AnswerPresenter.AnswerUi>
46        implements AnswerPresenter.AnswerUi {
47
48    public static final int TARGET_SET_FOR_AUDIO_WITHOUT_SMS = 0;
49    public static final int TARGET_SET_FOR_AUDIO_WITH_SMS = 1;
50    public static final int TARGET_SET_FOR_VIDEO_WITHOUT_SMS = 2;
51    public static final int TARGET_SET_FOR_VIDEO_WITH_SMS = 3;
52    public static final int TARGET_SET_FOR_VIDEO_ACCEPT_REJECT_REQUEST = 4;
53
54    /**
55     * This fragment implement no UI at all. Derived class should do it.
56     */
57    @Override
58    public abstract View onCreateView(LayoutInflater inflater, ViewGroup container,
59            Bundle savedInstanceState);
60
61    /**
62     * The popup showing the list of canned responses.
63     *
64     * This is an AlertDialog containing a ListView showing the possible choices.  This may be null
65     * if the InCallScreen hasn't ever called showRespondViaSmsPopup() yet, or if the popup was
66     * visible once but then got dismissed.
67     */
68    private Dialog mCannedResponsePopup = null;
69
70    /**
71     * The popup showing a text field for users to type in their custom message.
72     */
73    private AlertDialog mCustomMessagePopup = null;
74
75    private ArrayAdapter<String> mSmsResponsesAdapter;
76
77    private final List<String> mSmsResponses = new ArrayList<>();
78
79    @Override
80    public AnswerPresenter createPresenter() {
81        return InCallPresenter.getInstance().getAnswerPresenter();
82    }
83
84    @Override
85    public AnswerPresenter.AnswerUi getUi() {
86        return this;
87    }
88
89    @Override
90    public void showMessageDialog() {
91        final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
92
93        mSmsResponsesAdapter = new ArrayAdapter<>(builder.getContext(),
94                android.R.layout.simple_list_item_1, android.R.id.text1, mSmsResponses);
95
96        final ListView lv = new ListView(getActivity());
97        lv.setAdapter(mSmsResponsesAdapter);
98        lv.setOnItemClickListener(new RespondViaSmsItemClickListener());
99
100        builder.setCancelable(true).setView(lv).setOnCancelListener(
101                new DialogInterface.OnCancelListener() {
102                    @Override
103                    public void onCancel(DialogInterface dialogInterface) {
104                        onMessageDialogCancel();
105                        dismissCannedResponsePopup();
106                        getPresenter().onDismissDialog();
107                    }
108                });
109        mCannedResponsePopup = builder.create();
110        mCannedResponsePopup.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
111        mCannedResponsePopup.show();
112    }
113
114    private boolean isCannedResponsePopupShowing() {
115        if (mCannedResponsePopup != null) {
116            return mCannedResponsePopup.isShowing();
117        }
118        return false;
119    }
120
121    private boolean isCustomMessagePopupShowing() {
122        if (mCustomMessagePopup != null) {
123            return mCustomMessagePopup.isShowing();
124        }
125        return false;
126    }
127
128    /**
129     * Dismiss the canned response list popup.
130     *
131     * This is safe to call even if the popup is already dismissed, and even if you never called
132     * showRespondViaSmsPopup() in the first place.
133     */
134    protected void dismissCannedResponsePopup() {
135        if (mCannedResponsePopup != null) {
136            mCannedResponsePopup.dismiss();  // safe even if already dismissed
137            mCannedResponsePopup = null;
138        }
139    }
140
141    /**
142     * Dismiss the custom compose message popup.
143     */
144    private void dismissCustomMessagePopup() {
145        if (mCustomMessagePopup != null) {
146            mCustomMessagePopup.dismiss();
147            mCustomMessagePopup = null;
148        }
149    }
150
151    public void dismissPendingDialogs() {
152        if (isCannedResponsePopupShowing()) {
153            dismissCannedResponsePopup();
154        }
155
156        if (isCustomMessagePopupShowing()) {
157            dismissCustomMessagePopup();
158        }
159    }
160
161    public boolean hasPendingDialogs() {
162        return !(mCannedResponsePopup == null && mCustomMessagePopup == null);
163    }
164
165    /**
166     * Shows the custom message entry dialog.
167     */
168    public void showCustomMessageDialog() {
169        // Create an alert dialog containing an EditText
170        final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
171        final EditText et = new EditText(builder.getContext());
172        builder.setCancelable(true).setView(et)
173                .setPositiveButton(R.string.custom_message_send,
174                        new DialogInterface.OnClickListener() {
175                            @Override
176                            public void onClick(DialogInterface dialog, int which) {
177                                // The order is arranged in a way that the popup will be destroyed
178                                // when the InCallActivity is about to finish.
179                                final String textMessage = et.getText().toString().trim();
180                                dismissCustomMessagePopup();
181                                getPresenter().rejectCallWithMessage(textMessage);
182                            }
183                        })
184                .setNegativeButton(R.string.custom_message_cancel,
185                        new DialogInterface.OnClickListener() {
186                            @Override
187                            public void onClick(DialogInterface dialog, int which) {
188                                dismissCustomMessagePopup();
189                                getPresenter().onDismissDialog();
190                            }
191                        })
192                .setOnCancelListener(new DialogInterface.OnCancelListener() {
193                    @Override
194                    public void onCancel(DialogInterface dialogInterface) {
195                        dismissCustomMessagePopup();
196                        getPresenter().onDismissDialog();
197                    }
198                })
199                .setTitle(R.string.respond_via_sms_custom_message);
200        mCustomMessagePopup = builder.create();
201
202        // Enable/disable the send button based on whether there is a message in the EditText
203        et.addTextChangedListener(new TextWatcher() {
204            @Override
205            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
206            }
207
208            @Override
209            public void onTextChanged(CharSequence s, int start, int before, int count) {
210            }
211
212            @Override
213            public void afterTextChanged(Editable s) {
214                final Button sendButton = mCustomMessagePopup.getButton(
215                        DialogInterface.BUTTON_POSITIVE);
216                sendButton.setEnabled(s != null && s.toString().trim().length() != 0);
217            }
218        });
219
220        // Keyboard up, show the dialog
221        mCustomMessagePopup.getWindow().setSoftInputMode(
222                WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
223        mCustomMessagePopup.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
224        mCustomMessagePopup.show();
225
226        // Send button starts out disabled
227        final Button sendButton = mCustomMessagePopup.getButton(DialogInterface.BUTTON_POSITIVE);
228        sendButton.setEnabled(false);
229    }
230
231    @Override
232    public void configureMessageDialog(List<String> textResponses) {
233        mSmsResponses.clear();
234        mSmsResponses.addAll(textResponses);
235        mSmsResponses.add(getResources().getString(
236                R.string.respond_via_sms_custom_message));
237        if (mSmsResponsesAdapter != null) {
238            mSmsResponsesAdapter.notifyDataSetChanged();
239        }
240    }
241
242    @Override
243    public Context getContext() {
244        return getActivity();
245    }
246
247    public void onAnswer(int videoState, Context context) {
248        Log.d(this, "onAnswer videoState=" + videoState + " context=" + context);
249        getPresenter().onAnswer(videoState, context);
250    }
251
252    public void onDecline(Context context) {
253        getPresenter().onDecline(context);
254    }
255
256    public void onDeclineUpgradeRequest(Context context) {
257        InCallPresenter.getInstance().declineUpgradeRequest(context);
258    }
259
260    public void onText() {
261        getPresenter().onText();
262    }
263
264    /**
265     * OnItemClickListener for the "Respond via SMS" popup.
266     */
267    public class RespondViaSmsItemClickListener implements AdapterView.OnItemClickListener {
268
269        /**
270         * Handles the user selecting an item from the popup.
271         */
272        @Override
273        public void onItemClick(AdapterView<?> parent,  // The ListView
274                View view,  // The TextView that was clicked
275                int position, long id) {
276            Log.d(this, "RespondViaSmsItemClickListener.onItemClick(" + position + ")...");
277            final String message = (String) parent.getItemAtPosition(position);
278            Log.v(this, "- message: '" + message + "'");
279            dismissCannedResponsePopup();
280
281            // The "Custom" choice is a special case.
282            // (For now, it's guaranteed to be the last item.)
283            if (position == (parent.getCount() - 1)) {
284                // Show the custom message dialog
285                showCustomMessageDialog();
286            } else {
287                getPresenter().rejectCallWithMessage(message);
288            }
289        }
290    }
291
292    public void onShowAnswerUi(boolean shown) {
293        // Do Nothing
294    }
295
296    public void showTargets(int targetSet) {
297        // Do Nothing
298    }
299
300    public void showTargets(int targetSet, int videoState) {
301        // Do Nothing
302    }
303
304    protected void onMessageDialogCancel() {
305        // Do nothing.
306    }
307}
308