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      1 /*
      2  * Copyright (C) 2014 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 
     17 package com.android.inputmethod.latin;
     18 
     19 import android.app.AlertDialog;
     20 import android.content.Context;
     21 import android.content.DialogInterface;
     22 import android.content.DialogInterface.OnClickListener;
     23 
     24 import com.android.inputmethod.latin.utils.DialogUtils;
     25 import com.android.inputmethod.latin.utils.ImportantNoticeUtils;
     26 
     27 /**
     28  * The dialog box that shows the important notice contents.
     29  */
     30 public final class ImportantNoticeDialog extends AlertDialog implements OnClickListener {
     31     public interface ImportantNoticeDialogListener {
     32         public void onUserAcknowledgmentOfImportantNoticeDialog(final int nextVersion);
     33         public void onClickSettingsOfImportantNoticeDialog(final int nextVersion);
     34     }
     35 
     36     private final ImportantNoticeDialogListener mListener;
     37     private final int mNextImportantNoticeVersion;
     38 
     39     public ImportantNoticeDialog(
     40             final Context context, final ImportantNoticeDialogListener listener) {
     41         super(DialogUtils.getPlatformDialogThemeContext(context));
     42         mListener = listener;
     43         mNextImportantNoticeVersion = ImportantNoticeUtils.getNextImportantNoticeVersion(context);
     44         setMessage(ImportantNoticeUtils.getNextImportantNoticeContents(context));
     45         // Create buttons and set listeners.
     46         setButton(BUTTON_POSITIVE, context.getString(android.R.string.ok), this);
     47         if (shouldHaveSettingsButton()) {
     48             setButton(BUTTON_NEGATIVE, context.getString(R.string.go_to_settings), this);
     49         }
     50         // This dialog is cancelable by pressing back key. See {@link #onBackPress()}.
     51         setCancelable(true /* cancelable */);
     52         setCanceledOnTouchOutside(false /* cancelable */);
     53     }
     54 
     55     private boolean shouldHaveSettingsButton() {
     56         return mNextImportantNoticeVersion
     57                 == ImportantNoticeUtils.VERSION_TO_ENABLE_PERSONALIZED_SUGGESTIONS;
     58     }
     59 
     60     private void userAcknowledged() {
     61         ImportantNoticeUtils.updateLastImportantNoticeVersion(getContext());
     62         mListener.onUserAcknowledgmentOfImportantNoticeDialog(mNextImportantNoticeVersion);
     63     }
     64 
     65     @Override
     66     public void onClick(final DialogInterface dialog, final int which) {
     67         if (shouldHaveSettingsButton() && which == BUTTON_NEGATIVE) {
     68             mListener.onClickSettingsOfImportantNoticeDialog(mNextImportantNoticeVersion);
     69         }
     70         userAcknowledged();
     71     }
     72 
     73     @Override
     74     public void onBackPressed() {
     75         super.onBackPressed();
     76         userAcknowledged();
     77     }
     78 }
     79