Home | History | Annotate | Download | only in qsb 
      1 /*
      2  * Copyright (C) 2016 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.launcher3.qsb;
     18 
     19 import android.app.Activity;
     20 import android.app.Fragment;
     21 import android.app.SearchManager;
     22 import android.appwidget.AppWidgetHost;
     23 import android.appwidget.AppWidgetHostView;
     24 import android.appwidget.AppWidgetManager;
     25 import android.appwidget.AppWidgetProviderInfo;
     26 import android.content.ComponentName;
     27 import android.content.Context;
     28 import android.content.Intent;
     29 import android.graphics.Rect;
     30 import android.os.Bundle;
     31 import android.util.AttributeSet;
     32 import android.view.LayoutInflater;
     33 import android.view.View;
     34 import android.view.ViewGroup;
     35 import android.widget.FrameLayout;
     36 
     37 import com.android.launcher3.AppWidgetResizeFrame;
     38 import com.android.launcher3.InvariantDeviceProfile;
     39 import com.android.launcher3.Launcher;
     40 import com.android.launcher3.LauncherAppState;
     41 import com.android.launcher3.R;
     42 import com.android.launcher3.Utilities;
     43 import com.android.launcher3.config.FeatureFlags;
     44 
     45 /**
     46  * A frame layout which contains a QSB. This internally uses fragment to bind the view, which
     47  * allows it to contain the logic for {@link Fragment#startActivityForResult(Intent, int)}.
     48  *
     49  * Note: AppWidgetManagerCompat can be disabled using FeatureFlags. In QSB, we should use
     50  * AppWidgetManager directly, so that it keeps working in that case.
     51  */
     52 public class QsbContainerView extends FrameLayout {
     53 
     54     public QsbContainerView(Context context) {
     55         super(context);
     56     }
     57 
     58     public QsbContainerView(Context context, AttributeSet attrs) {
     59         super(context, attrs);
     60     }
     61 
     62     public QsbContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
     63         super(context, attrs, defStyleAttr);
     64     }
     65 
     66     @Override
     67     public void setPadding(int left, int top, int right, int bottom) {
     68         super.setPadding(0, 0, 0, 0);
     69     }
     70 
     71     /**
     72      * A fragment to display the QSB.
     73      */
     74     public static class QsbFragment extends Fragment implements View.OnClickListener {
     75 
     76         private static final int REQUEST_BIND_QSB = 1;
     77         private static final String QSB_WIDGET_ID = "qsb_widget_id";
     78 
     79         private QsbWidgetHost mQsbWidgetHost;
     80         private AppWidgetProviderInfo mWidgetInfo;
     81         private QsbWidgetHostView mQsb;
     82 
     83         // We need to store the orientation here, due to a bug (b/64916689) that results in widgets
     84         // being inflated in the wrong orientation.
     85         private int mOrientation;
     86 
     87         @Override
     88         public void onCreate(Bundle savedInstanceState) {
     89             super.onCreate(savedInstanceState);
     90             mQsbWidgetHost = new QsbWidgetHost(getActivity());
     91             mOrientation = getContext().getResources().getConfiguration().orientation;
     92         }
     93 
     94         private FrameLayout mWrapper;
     95 
     96         @Override
     97         public View onCreateView(
     98                 LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
     99 
    100             mWrapper = new FrameLayout(getActivity());
    101 
    102             // Only add the view when enabled
    103             if (FeatureFlags.QSB_ON_FIRST_SCREEN) {
    104                 mWrapper.addView(createQsb(mWrapper));
    105             }
    106             return mWrapper;
    107         }
    108 
    109         private View createQsb(ViewGroup container) {
    110             Activity activity = getActivity();
    111             mWidgetInfo = getSearchWidgetProvider(activity);
    112             if (mWidgetInfo == null) {
    113                 // There is no search provider, just show the default widget.
    114                 return QsbWidgetHostView.getDefaultView(container);
    115             }
    116 
    117             AppWidgetManager widgetManager = AppWidgetManager.getInstance(activity);
    118             InvariantDeviceProfile idp = LauncherAppState.getIDP(activity);
    119 
    120             Bundle opts = new Bundle();
    121             Rect size = AppWidgetResizeFrame.getWidgetSizeRanges(activity, idp.numColumns, 1, null);
    122             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, size.left);
    123             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, size.top);
    124             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, size.right);
    125             opts.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, size.bottom);
    126 
    127             int widgetId = Utilities.getPrefs(activity).getInt(QSB_WIDGET_ID, -1);
    128             AppWidgetProviderInfo widgetInfo = widgetManager.getAppWidgetInfo(widgetId);
    129             boolean isWidgetBound = (widgetInfo != null) &&
    130                     widgetInfo.provider.equals(mWidgetInfo.provider);
    131 
    132             int oldWidgetId = widgetId;
    133             if (!isWidgetBound) {
    134                 if (widgetId > -1) {
    135                     // widgetId is already bound and its not the correct provider. reset host.
    136                     mQsbWidgetHost.deleteHost();
    137                 }
    138 
    139                 widgetId = mQsbWidgetHost.allocateAppWidgetId();
    140                 isWidgetBound = widgetManager.bindAppWidgetIdIfAllowed(
    141                         widgetId, mWidgetInfo.getProfile(), mWidgetInfo.provider, opts);
    142                 if (!isWidgetBound) {
    143                     mQsbWidgetHost.deleteAppWidgetId(widgetId);
    144                     widgetId = -1;
    145                 }
    146 
    147                 if (oldWidgetId != widgetId) {
    148                     saveWidgetId(widgetId);
    149                 }
    150             }
    151 
    152             if (isWidgetBound) {
    153                 mQsb = (QsbWidgetHostView) mQsbWidgetHost.createView(activity, widgetId, mWidgetInfo);
    154                 mQsb.setId(R.id.qsb_widget);
    155 
    156                 if (!Utilities.containsAll(AppWidgetManager.getInstance(activity)
    157                         .getAppWidgetOptions(widgetId), opts)) {
    158                     mQsb.updateAppWidgetOptions(opts);
    159                 }
    160                 mQsb.setPadding(0, 0, 0, 0);
    161                 mQsbWidgetHost.startListening();
    162                 return mQsb;
    163             }
    164 
    165             // Return a default widget with setup icon.
    166             View v = QsbWidgetHostView.getDefaultView(container);
    167             View setupButton = v.findViewById(R.id.btn_qsb_setup);
    168             setupButton.setVisibility(View.VISIBLE);
    169             setupButton.setOnClickListener(this);
    170             return v;
    171         }
    172 
    173         private void saveWidgetId(int widgetId) {
    174             Utilities.getPrefs(getActivity()).edit().putInt(QSB_WIDGET_ID, widgetId).apply();
    175         }
    176 
    177         @Override
    178         public void onClick(View view) {
    179             // Start intent for bind the widget
    180             Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_BIND);
    181             // Allocate a new widget id for QSB
    182             intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mQsbWidgetHost.allocateAppWidgetId());
    183             intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER, mWidgetInfo.provider);
    184             startActivityForResult(intent, REQUEST_BIND_QSB);
    185         }
    186 
    187         @Override
    188         public void onActivityResult(int requestCode, int resultCode, Intent data) {
    189             if (requestCode == REQUEST_BIND_QSB) {
    190                 if (resultCode == Activity.RESULT_OK) {
    191                     saveWidgetId(data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1));
    192                     rebindFragment();
    193                 } else {
    194                     mQsbWidgetHost.deleteHost();
    195                 }
    196             }
    197         }
    198 
    199         @Override
    200         public void onResume() {
    201             super.onResume();
    202             if (mQsb != null && mQsb.isReinflateRequired(mOrientation)) {
    203                 rebindFragment();
    204             }
    205         }
    206 
    207         @Override
    208         public void onDestroy() {
    209             mQsbWidgetHost.stopListening();
    210             super.onDestroy();
    211         }
    212 
    213         private void rebindFragment() {
    214             // Exit if the embedded qsb is disabled
    215             if (!FeatureFlags.QSB_ON_FIRST_SCREEN) {
    216                 return;
    217             }
    218 
    219             if (mWrapper != null && getActivity() != null) {
    220                 mWrapper.removeAllViews();
    221                 mWrapper.addView(createQsb(mWrapper));
    222             }
    223         }
    224     }
    225 
    226     /**
    227      * Returns a widget with category {@link AppWidgetProviderInfo#WIDGET_CATEGORY_SEARCHBOX}
    228      * provided by the same package which is set to be global search activity.
    229      * If widgetCategory is not supported, or no such widget is found, returns the first widget
    230      * provided by the package.
    231      */
    232     public static AppWidgetProviderInfo getSearchWidgetProvider(Context context) {
    233         SearchManager searchManager =
    234                 (SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
    235         ComponentName searchComponent = searchManager.getGlobalSearchActivity();
    236         if (searchComponent == null) return null;
    237         String providerPkg = searchComponent.getPackageName();
    238 
    239         AppWidgetProviderInfo defaultWidgetForSearchPackage = null;
    240 
    241         AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
    242         for (AppWidgetProviderInfo info : appWidgetManager.getInstalledProviders()) {
    243             if (info.provider.getPackageName().equals(providerPkg) && info.configure == null) {
    244                 if ((info.widgetCategory & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
    245                     return info;
    246                 } else if (defaultWidgetForSearchPackage == null) {
    247                     defaultWidgetForSearchPackage = info;
    248                 }
    249             }
    250         }
    251         return defaultWidgetForSearchPackage;
    252     }
    253 
    254     private static class QsbWidgetHost extends AppWidgetHost {
    255 
    256         private static final int QSB_WIDGET_HOST_ID = 1026;
    257 
    258         public QsbWidgetHost(Context context) {
    259             super(context, QSB_WIDGET_HOST_ID);
    260         }
    261 
    262         @Override
    263         protected AppWidgetHostView onCreateView(
    264                 Context context, int appWidgetId, AppWidgetProviderInfo appWidget) {
    265             return new QsbWidgetHostView(context);
    266         }
    267     }
    268 }
    269