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      1 /*
      2  * Copyright (C) 2012 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.settings;
     18 
     19 import android.app.AlertDialog;
     20 import android.appwidget.AppWidgetManager;
     21 import android.content.ComponentName;
     22 import android.content.Context;
     23 import android.content.DialogInterface;
     24 import android.content.Intent;
     25 import android.content.pm.ApplicationInfo;
     26 import android.content.pm.PackageManager;
     27 import android.os.Bundle;
     28 import android.os.UserHandle;
     29 import android.util.Log;
     30 import android.view.LayoutInflater;
     31 import android.widget.CheckBox;
     32 
     33 import com.android.internal.app.AlertActivity;
     34 import com.android.internal.app.AlertController;
     35 
     36 /**
     37  * This activity is displayed when an app launches the BIND_APPWIDGET intent. This allows apps
     38  * that don't have the BIND_APPWIDGET permission to bind specific widgets.
     39  */
     40 public class AllowBindAppWidgetActivity extends AlertActivity implements
     41         DialogInterface.OnClickListener {
     42 
     43     private CheckBox mAlwaysUse;
     44     private int mAppWidgetId;
     45     private UserHandle mProfile;
     46     private ComponentName mComponentName;
     47     private String mCallingPackage;
     48     private AppWidgetManager mAppWidgetManager;
     49 
     50     // Indicates whether this activity was closed because of a click
     51     private boolean mClicked;
     52 
     53     public void onClick(DialogInterface dialog, int which) {
     54         if (which == AlertDialog.BUTTON_POSITIVE) {
     55             // By default, set the result to cancelled
     56             setResult(RESULT_CANCELED);
     57             if (mAppWidgetId != -1 && mComponentName != null && mCallingPackage != null) {
     58                 try {
     59                     final boolean bound = mAppWidgetManager.bindAppWidgetIdIfAllowed(mAppWidgetId,
     60                             mProfile, mComponentName, null);
     61                     if (bound) {
     62                         Intent result = new Intent();
     63                         result.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
     64                         setResult(RESULT_OK, result);
     65                     }
     66                 } catch (Exception e) {
     67                     Log.v("BIND_APPWIDGET", "Error binding widget with id "
     68                             + mAppWidgetId + " and component " + mComponentName);
     69                 }
     70 
     71                 final boolean alwaysAllowBind = mAlwaysUse.isChecked();
     72                 if (alwaysAllowBind != mAppWidgetManager.hasBindAppWidgetPermission(
     73                         mCallingPackage)) {
     74                     mAppWidgetManager.setBindAppWidgetPermission(mCallingPackage,
     75                             alwaysAllowBind);
     76                 }
     77             }
     78         }
     79         finish();
     80     }
     81 
     82     protected void onPause() {
     83         if (isDestroyed() && !mClicked) {
     84             setResult(RESULT_CANCELED);
     85         }
     86         super.onDestroy();
     87     }
     88 
     89     protected void onCreate(Bundle savedInstanceState) {
     90         super.onCreate(savedInstanceState);
     91         Intent intent = getIntent();
     92         CharSequence label = "";
     93         if (intent != null) {
     94             try {
     95                 mAppWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
     96                 mProfile = intent.getParcelableExtra(
     97                         AppWidgetManager.EXTRA_APPWIDGET_PROVIDER_PROFILE);
     98                 if (mProfile == null) {
     99                     mProfile = android.os.Process.myUserHandle();
    100                 }
    101                 mComponentName =
    102                         intent.getParcelableExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER);
    103                 mCallingPackage = getCallingPackage();
    104                 PackageManager pm = getPackageManager();
    105                 ApplicationInfo ai = pm.getApplicationInfo(mCallingPackage, 0);
    106                 label = pm.getApplicationLabel(ai);
    107             } catch (Exception e) {
    108                 mAppWidgetId = -1;
    109                 mComponentName = null;
    110                 mCallingPackage = null;
    111                 Log.v("BIND_APPWIDGET", "Error getting parameters");
    112                 setResult(RESULT_CANCELED);
    113                 finish();
    114                 return;
    115             }
    116         }
    117         AlertController.AlertParams ap = mAlertParams;
    118         ap.mTitle = getString(R.string.allow_bind_app_widget_activity_allow_bind_title);
    119         ap.mMessage = getString(R.string.allow_bind_app_widget_activity_allow_bind, label);
    120         ap.mPositiveButtonText = getString(R.string.create);
    121         ap.mNegativeButtonText = getString(android.R.string.cancel);
    122         ap.mPositiveButtonListener = this;
    123         ap.mNegativeButtonListener = this;
    124         LayoutInflater inflater =
    125                 (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    126         ap.mView = inflater.inflate(com.android.internal.R.layout.always_use_checkbox, null);
    127         mAlwaysUse = (CheckBox) ap.mView.findViewById(com.android.internal.R.id.alwaysUse);
    128         mAlwaysUse.setText(getString(R.string.allow_bind_app_widget_activity_always_allow_bind, label));
    129 
    130         mAlwaysUse.setPadding(mAlwaysUse.getPaddingLeft(),
    131                 mAlwaysUse.getPaddingTop(),
    132                 mAlwaysUse.getPaddingRight(),
    133                 (int) (mAlwaysUse.getPaddingBottom() +
    134                         getResources().getDimension(R.dimen.bind_app_widget_dialog_checkbox_bottom_padding)));
    135 
    136         mAppWidgetManager = AppWidgetManager.getInstance(this);
    137         mAlwaysUse.setChecked(mAppWidgetManager.hasBindAppWidgetPermission(mCallingPackage,
    138                 mProfile.getIdentifier()));
    139 
    140         setupAlert();
    141     }
    142 }
    143