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      1 /*
      2  * Copyright 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.managedprovisioning.common;
     18 
     19 import static android.view.View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
     20 
     21 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.VIEW_UNKNOWN;
     22 
     23 import android.app.Activity;
     24 import android.app.ActivityManager.TaskDescription;
     25 import android.app.DialogFragment;
     26 import android.app.Fragment;
     27 import android.app.FragmentManager;
     28 import android.app.FragmentTransaction;
     29 import android.content.pm.ActivityInfo;
     30 import android.graphics.Color;
     31 import android.os.Bundle;
     32 import android.support.annotation.VisibleForTesting;
     33 import android.view.View;
     34 import android.view.Window;
     35 import android.view.WindowManager;
     36 
     37 import com.android.managedprovisioning.R;
     38 import com.android.managedprovisioning.analytics.TimeLogger;
     39 
     40 /**
     41  * Base class for setting up the layout.
     42  */
     43 public abstract class SetupLayoutActivity extends Activity {
     44     protected final Utils mUtils;
     45 
     46     private TimeLogger mTimeLogger;
     47 
     48     public SetupLayoutActivity() {
     49         this(new Utils());
     50     }
     51 
     52     @VisibleForTesting
     53     protected SetupLayoutActivity(Utils utils) {
     54         mUtils = utils;
     55     }
     56 
     57     @Override
     58     protected void onCreate(Bundle savedInstanceState) {
     59         super.onCreate(savedInstanceState);
     60         mTimeLogger = new TimeLogger(this, getMetricsCategory());
     61         mTimeLogger.start();
     62 
     63         // lock orientation to portrait on phones
     64         if (getResources().getBoolean(R.bool.lock_to_portrait)) {
     65             setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
     66         }
     67     }
     68 
     69     @Override
     70     public void onDestroy() {
     71         mTimeLogger.stop();
     72         super.onDestroy();
     73     }
     74 
     75     protected int getMetricsCategory() {
     76         return VIEW_UNKNOWN;
     77     }
     78 
     79     protected Utils getUtils() {
     80         return mUtils;
     81     }
     82 
     83     /**
     84      * @param mainColor integer representing the color (i.e. not resource id)
     85      */
     86     protected void setMainColor(int mainColor) {
     87         mainColor = toSolidColor(mainColor);
     88 
     89         Window window = getWindow();
     90         window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
     91         window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
     92         window.setStatusBarColor(mainColor);
     93 
     94         // set status bar icon style
     95         View decorView = getWindow().getDecorView();
     96         int visibility = decorView.getSystemUiVisibility();
     97         decorView.setSystemUiVisibility(getUtils().isBrightColor(mainColor)
     98                 ? (visibility | SYSTEM_UI_FLAG_LIGHT_STATUS_BAR)
     99                 : (visibility & ~SYSTEM_UI_FLAG_LIGHT_STATUS_BAR));
    100 
    101         setTaskDescription(new TaskDescription(null /* label */, null /* icon */, mainColor));
    102     }
    103 
    104     /**
    105      * Removes transparency from the color
    106      *
    107      * <p>Needed for correct calculation of Status Bar icons (light / dark)
    108      */
    109     private Integer toSolidColor(Integer color) {
    110         return Color.argb(255, Color.red(color), Color.green(color), Color.blue(color));
    111     }
    112 
    113     /**
    114      * Constructs and shows a {@link DialogFragment} unless it is already displayed.
    115      * @param dialogBuilder Lightweight builder, that it is inexpensive to discard it if dialog
    116      * already shown.
    117      * @param tag The tag for this dialog, as per {@link FragmentTransaction#add(Fragment, String)}.
    118      */
    119     protected void showDialog(DialogBuilder dialogBuilder, String tag) {
    120         FragmentManager fragmentManager = getFragmentManager();
    121         if (!isDialogAdded(tag)) {
    122             dialogBuilder.build().show(fragmentManager, tag);
    123         }
    124     }
    125 
    126     /**
    127      * Checks whether the {@link DialogFragment} associated with the given tag is currently showing.
    128      * @param tag The tag for this dialog.
    129      */
    130     protected boolean isDialogAdded(String tag) {
    131         Fragment fragment = getFragmentManager().findFragmentByTag(tag);
    132         return (fragment != null) && (fragment.isAdded());
    133     }
    134 }