src/com/android/settings/accounts/ChooseAccountPreferenceController.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings.accounts;

 import static android.app.Activity.RESULT_CANCELED;
 import static android.app.Activity.RESULT_OK;
 import static android.content.Intent.EXTRA_USER;

 import android.accounts.AccountManager;
 import android.accounts.AuthenticatorDescription;
 import android.app.Activity;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SyncAdapterType;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.graphics.drawable.Drawable;
 import android.os.UserHandle;
 import android.util.Log;

 import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceScreen;

 import com.android.settings.core.BasePreferenceController;
 import com.android.settingslib.RestrictedLockUtils;
 import com.android.settingslib.RestrictedLockUtilsInternal;

 import com.google.android.collect.Maps;

 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 /**
  * An extra {@link UserHandle} can be specified in the intent as {@link EXTRA_USER}, if the user for
  * which the action needs to be performed is different to the one the Settings App will run in.
  */
 public class ChooseAccountPreferenceController extends BasePreferenceController {

     private static final String TAG = "ChooseAccountPrefCtrler";

     private final List<ProviderEntry> mProviderList;
     private final Map<String, AuthenticatorDescription> mTypeToAuthDescription;

     private String[] mAuthorities;
     private Set<String> mAccountTypesFilter;
     private AuthenticatorDescription[] mAuthDescs;
     private Map<String, List<String>> mAccountTypeToAuthorities;
     // The UserHandle of the user we are choosing an account for
     private UserHandle mUserHandle;
     private Activity mActivity;
     private PreferenceScreen mScreen;

     public ChooseAccountPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);

         mProviderList = new ArrayList<>();
         mTypeToAuthDescription = new HashMap<>();
     }

     public void initialize(String[] authorities, String[] accountTypesFilter, UserHandle userHandle,
             Activity activity) {
         mActivity = activity;
         mAuthorities = authorities;
         mUserHandle = userHandle;

         if (accountTypesFilter != null) {
             mAccountTypesFilter = new HashSet<>();
             for (String accountType : accountTypesFilter) {
                 mAccountTypesFilter.add(accountType);
             }
         }
     }

     @Override
     public int getAvailabilityStatus() {
         return AVAILABLE;
     }

     @Override
     public void displayPreference(PreferenceScreen screen) {
         super.displayPreference(screen);
         mScreen = screen;
         updateAuthDescriptions();
     }

     @Override
     public boolean handlePreferenceTreeClick(Preference preference) {
         if (!(preference instanceof ProviderPreference)) {
             return false;
         }

         ProviderPreference pref = (ProviderPreference) preference;
         if (Log.isLoggable(TAG, Log.VERBOSE)) {
             Log.v(TAG, "Attempting to add account of type " + pref.getAccountType());
         }
         finishWithAccountType(pref.getAccountType());
         return true;
     }

     /**
      * Updates provider icons. Subclasses should call this in onCreate()
      * and update any UI that depends on AuthenticatorDescriptions in onAuthDescriptionsUpdated().
      */
     private void updateAuthDescriptions() {
         mAuthDescs = AccountManager.get(mContext).getAuthenticatorTypesAsUser(
                 mUserHandle.getIdentifier());
         for (int i = 0; i < mAuthDescs.length; i++) {
             mTypeToAuthDescription.put(mAuthDescs[i].type, mAuthDescs[i]);
         }
         onAuthDescriptionsUpdated();
     }

     private void onAuthDescriptionsUpdated() {
         // Create list of providers to show on preference screen
         for (int i = 0; i < mAuthDescs.length; i++) {
             final String accountType = mAuthDescs[i].type;
             final CharSequence providerName = getLabelForType(accountType);

             // Skip preferences for authorities not specified. If no authorities specified,
             // then include them all.
             final List<String> accountAuths = getAuthoritiesForAccountType(accountType);
             boolean addAccountPref = true;
             if (mAuthorities != null && mAuthorities.length > 0 && accountAuths != null) {
                 addAccountPref = false;
                 for (int k = 0; k < mAuthorities.length; k++) {
                     if (accountAuths.contains(mAuthorities[k])) {
                         addAccountPref = true;
                         break;
                     }
                 }
             }
             if (addAccountPref && mAccountTypesFilter != null
                     && !mAccountTypesFilter.contains(accountType)) {
                 addAccountPref = false;
             }
             if (addAccountPref) {
                 mProviderList.add(
                         new ProviderEntry(providerName, accountType));
             } else {
                 if (Log.isLoggable(TAG, Log.VERBOSE)) {
                     Log.v(TAG, "Skipped pref " + providerName + ": has no authority we need");
                 }
             }
         }
         final Context context = mScreen.getContext();
         if (mProviderList.size() == 1) {
             // There's only one provider that matches. If it is disabled by admin show the
             // support dialog otherwise run it.
             final RestrictedLockUtils.EnforcedAdmin admin =
                     RestrictedLockUtilsInternal.checkIfAccountManagementDisabled(
                             context, mProviderList.get(0).getType(), mUserHandle.getIdentifier());
             if (admin != null) {
                 mActivity.setResult(RESULT_CANCELED,
                         RestrictedLockUtils.getShowAdminSupportDetailsIntent(
                                 context, admin));
                 mActivity.finish();
             } else {
                 finishWithAccountType(mProviderList.get(0).getType());
             }
         } else if (mProviderList.size() > 0) {
             Collections.sort(mProviderList);
             for (ProviderEntry pref : mProviderList) {
                 final Drawable drawable = getDrawableForType(pref.getType());
                 final ProviderPreference p = new ProviderPreference(context,
                         pref.getType(), drawable, pref.getName());
                 p.setKey(pref.getType().toString());
                 p.checkAccountManagementAndSetDisabled(mUserHandle.getIdentifier());
                 mScreen.addPreference(p);
             }
         } else {
             if (Log.isLoggable(TAG, Log.VERBOSE)) {
                 final StringBuilder auths = new StringBuilder();
                 for (String a : mAuthorities) {
                     auths.append(a);
                     auths.append(' ');
                 }
                 Log.v(TAG, "No providers found for authorities: " + auths);
             }
             mActivity.setResult(RESULT_CANCELED);
             mActivity.finish();
         }
     }

     private List<String> getAuthoritiesForAccountType(String type) {
         if (mAccountTypeToAuthorities == null) {
             mAccountTypeToAuthorities = Maps.newHashMap();
             final SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypesAsUser(
                     mUserHandle.getIdentifier());
             for (int i = 0, n = syncAdapters.length; i < n; i++) {
                 final SyncAdapterType sa = syncAdapters[i];
                 List<String> authorities = mAccountTypeToAuthorities.get(sa.accountType);
                 if (authorities == null) {
                     authorities = new ArrayList<>();
                     mAccountTypeToAuthorities.put(sa.accountType, authorities);
                 }
                 if (Log.isLoggable(TAG, Log.VERBOSE)) {
                     Log.v(TAG, "added authority " + sa.authority + " to accountType "
                             + sa.accountType);
                 }
                 authorities.add(sa.authority);
             }
         }
         return mAccountTypeToAuthorities.get(type);
     }

     /**
      * Gets an icon associated with a particular account type. If none found, return null.
      *
      * @param accountType the type of account
      * @return a drawable for the icon or a default icon returned by
      * {@link PackageManager#getDefaultActivityIcon} if one cannot be found.
      */
     @VisibleForTesting
     Drawable getDrawableForType(final String accountType) {
         Drawable icon = null;
         if (mTypeToAuthDescription.containsKey(accountType)) {
             try {
                 final AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
                 final Context authContext = mActivity
                         .createPackageContextAsUser(desc.packageName, 0, mUserHandle);
                 icon = mContext.getPackageManager().getUserBadgedIcon(
                         authContext.getDrawable(desc.iconId), mUserHandle);
             } catch (PackageManager.NameNotFoundException e) {
                 Log.w(TAG, "No icon name for account type " + accountType);
             } catch (Resources.NotFoundException e) {
                 Log.w(TAG, "No icon resource for account type " + accountType);
             }
         }
         if (icon != null) {
             return icon;
         } else {
             return mContext.getPackageManager().getDefaultActivityIcon();
         }
     }

     /**
      * Gets the label associated with a particular account type. If none found, return null.
      *
      * @param accountType the type of account
      * @return a CharSequence for the label or null if one cannot be found.
      */
     @VisibleForTesting
     CharSequence getLabelForType(final String accountType) {
         CharSequence label = null;
         if (mTypeToAuthDescription.containsKey(accountType)) {
             try {
                 final AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
                 final Context authContext = mActivity
                         .createPackageContextAsUser(desc.packageName, 0, mUserHandle);
                 label = authContext.getResources().getText(desc.labelId);
             } catch (PackageManager.NameNotFoundException e) {
                 Log.w(TAG, "No label name for account type " + accountType);
             } catch (Resources.NotFoundException e) {
                 Log.w(TAG, "No label resource for account type " + accountType);
             }
         }
         return label;
     }

     private void finishWithAccountType(String accountType) {
         Intent intent = new Intent();
         intent.putExtra(AddAccountSettings.EXTRA_SELECTED_ACCOUNT, accountType);
         intent.putExtra(EXTRA_USER, mUserHandle);
         mActivity.setResult(RESULT_OK, intent);
         mActivity.finish();
     }
 }
	/*
	* Copyright (C) 2018 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings.accounts;

	import static android.app.Activity.RESULT_CANCELED;
	import static android.app.Activity.RESULT_OK;
	import static android.content.Intent.EXTRA_USER;

	import android.accounts.AccountManager;
	import android.accounts.AuthenticatorDescription;
	import android.app.Activity;
	import android.content.ContentResolver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.SyncAdapterType;
	import android.content.pm.PackageManager;
	import android.content.res.Resources;
	import android.graphics.drawable.Drawable;
	import android.os.UserHandle;
	import android.util.Log;

	import androidx.annotation.VisibleForTesting;
	import androidx.preference.Preference;
	import androidx.preference.PreferenceScreen;

	import com.android.settings.core.BasePreferenceController;
	import com.android.settingslib.RestrictedLockUtils;
	import com.android.settingslib.RestrictedLockUtilsInternal;

	import com.google.android.collect.Maps;

	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	/**
	* An extra {@link UserHandle} can be specified in the intent as {@link EXTRA_USER}, if the user for
	* which the action needs to be performed is different to the one the Settings App will run in.
	*/
	public class ChooseAccountPreferenceController extends BasePreferenceController {

	private static final String TAG = "ChooseAccountPrefCtrler";

	private final List<ProviderEntry> mProviderList;
	private final Map<String, AuthenticatorDescription> mTypeToAuthDescription;

	private String[] mAuthorities;
	private Set<String> mAccountTypesFilter;
	private AuthenticatorDescription[] mAuthDescs;
	private Map<String, List<String>> mAccountTypeToAuthorities;
	// The UserHandle of the user we are choosing an account for
	private UserHandle mUserHandle;
	private Activity mActivity;
	private PreferenceScreen mScreen;

	public ChooseAccountPreferenceController(Context context, String preferenceKey) {
	super(context, preferenceKey);

	mProviderList = new ArrayList<>();
	mTypeToAuthDescription = new HashMap<>();
	}

	public void initialize(String[] authorities, String[] accountTypesFilter, UserHandle userHandle,
	Activity activity) {
	mActivity = activity;
	mAuthorities = authorities;
	mUserHandle = userHandle;

	if (accountTypesFilter != null) {
	mAccountTypesFilter = new HashSet<>();
	for (String accountType : accountTypesFilter) {
	mAccountTypesFilter.add(accountType);
	}
	}
	}

	@Override
	public int getAvailabilityStatus() {
	return AVAILABLE;
	}

	@Override
	public void displayPreference(PreferenceScreen screen) {
	super.displayPreference(screen);
	mScreen = screen;
	updateAuthDescriptions();
	}

	@Override
	public boolean handlePreferenceTreeClick(Preference preference) {
	if (!(preference instanceof ProviderPreference)) {
	return false;
	}

	ProviderPreference pref = (ProviderPreference) preference;
	if (Log.isLoggable(TAG, Log.VERBOSE)) {
	Log.v(TAG, "Attempting to add account of type " + pref.getAccountType());
	}
	finishWithAccountType(pref.getAccountType());
	return true;
	}

	/**
	* Updates provider icons. Subclasses should call this in onCreate()
	* and update any UI that depends on AuthenticatorDescriptions in onAuthDescriptionsUpdated().
	*/
	private void updateAuthDescriptions() {
	mAuthDescs = AccountManager.get(mContext).getAuthenticatorTypesAsUser(
	mUserHandle.getIdentifier());
	for (int i = 0; i < mAuthDescs.length; i++) {
	mTypeToAuthDescription.put(mAuthDescs[i].type, mAuthDescs[i]);
	}
	onAuthDescriptionsUpdated();
	}

	private void onAuthDescriptionsUpdated() {
	// Create list of providers to show on preference screen
	for (int i = 0; i < mAuthDescs.length; i++) {
	final String accountType = mAuthDescs[i].type;
	final CharSequence providerName = getLabelForType(accountType);

	// Skip preferences for authorities not specified. If no authorities specified,
	// then include them all.
	final List<String> accountAuths = getAuthoritiesForAccountType(accountType);
	boolean addAccountPref = true;
	if (mAuthorities != null && mAuthorities.length > 0 && accountAuths != null) {
	addAccountPref = false;
	for (int k = 0; k < mAuthorities.length; k++) {
	if (accountAuths.contains(mAuthorities[k])) {
	addAccountPref = true;
	break;
	}
	}
	}
	if (addAccountPref && mAccountTypesFilter != null
	&& !mAccountTypesFilter.contains(accountType)) {
	addAccountPref = false;
	}
	if (addAccountPref) {
	mProviderList.add(
	new ProviderEntry(providerName, accountType));
	} else {
	if (Log.isLoggable(TAG, Log.VERBOSE)) {
	Log.v(TAG, "Skipped pref " + providerName + ": has no authority we need");
	}
	}
	}
	final Context context = mScreen.getContext();
	if (mProviderList.size() == 1) {
	// There's only one provider that matches. If it is disabled by admin show the
	// support dialog otherwise run it.
	final RestrictedLockUtils.EnforcedAdmin admin =
	RestrictedLockUtilsInternal.checkIfAccountManagementDisabled(
	context, mProviderList.get(0).getType(), mUserHandle.getIdentifier());
	if (admin != null) {
	mActivity.setResult(RESULT_CANCELED,
	RestrictedLockUtils.getShowAdminSupportDetailsIntent(
	context, admin));
	mActivity.finish();
	} else {
	finishWithAccountType(mProviderList.get(0).getType());
	}
	} else if (mProviderList.size() > 0) {
	Collections.sort(mProviderList);
	for (ProviderEntry pref : mProviderList) {
	final Drawable drawable = getDrawableForType(pref.getType());
	final ProviderPreference p = new ProviderPreference(context,
	pref.getType(), drawable, pref.getName());
	p.setKey(pref.getType().toString());
	p.checkAccountManagementAndSetDisabled(mUserHandle.getIdentifier());
	mScreen.addPreference(p);
	}
	} else {
	if (Log.isLoggable(TAG, Log.VERBOSE)) {
	final StringBuilder auths = new StringBuilder();
	for (String a : mAuthorities) {
	auths.append(a);
	auths.append(' ');
	}
	Log.v(TAG, "No providers found for authorities: " + auths);
	}
	mActivity.setResult(RESULT_CANCELED);
	mActivity.finish();
	}
	}

	private List<String> getAuthoritiesForAccountType(String type) {
	if (mAccountTypeToAuthorities == null) {
	mAccountTypeToAuthorities = Maps.newHashMap();
	final SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypesAsUser(
	mUserHandle.getIdentifier());
	for (int i = 0, n = syncAdapters.length; i < n; i++) {
	final SyncAdapterType sa = syncAdapters[i];
	List<String> authorities = mAccountTypeToAuthorities.get(sa.accountType);
	if (authorities == null) {
	authorities = new ArrayList<>();
	mAccountTypeToAuthorities.put(sa.accountType, authorities);
	}
	if (Log.isLoggable(TAG, Log.VERBOSE)) {
	Log.v(TAG, "added authority " + sa.authority + " to accountType "
	+ sa.accountType);
	}
	authorities.add(sa.authority);
	}
	}
	return mAccountTypeToAuthorities.get(type);
	}

	/**
	* Gets an icon associated with a particular account type. If none found, return null.
	*
	* @param accountType the type of account
	* @return a drawable for the icon or a default icon returned by
	* {@link PackageManager#getDefaultActivityIcon} if one cannot be found.
	*/
	@VisibleForTesting
	Drawable getDrawableForType(final String accountType) {
	Drawable icon = null;
	if (mTypeToAuthDescription.containsKey(accountType)) {
	try {
	final AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
	final Context authContext = mActivity
	.createPackageContextAsUser(desc.packageName, 0, mUserHandle);
	icon = mContext.getPackageManager().getUserBadgedIcon(
	authContext.getDrawable(desc.iconId), mUserHandle);
	} catch (PackageManager.NameNotFoundException e) {
	Log.w(TAG, "No icon name for account type " + accountType);
	} catch (Resources.NotFoundException e) {
	Log.w(TAG, "No icon resource for account type " + accountType);
	}
	}
	if (icon != null) {
	return icon;
	} else {
	return mContext.getPackageManager().getDefaultActivityIcon();
	}
	}

	/**
	* Gets the label associated with a particular account type. If none found, return null.
	*
	* @param accountType the type of account
	* @return a CharSequence for the label or null if one cannot be found.
	*/
	@VisibleForTesting
	CharSequence getLabelForType(final String accountType) {
	CharSequence label = null;
	if (mTypeToAuthDescription.containsKey(accountType)) {
	try {
	final AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
	final Context authContext = mActivity
	.createPackageContextAsUser(desc.packageName, 0, mUserHandle);
	label = authContext.getResources().getText(desc.labelId);
	} catch (PackageManager.NameNotFoundException e) {
	Log.w(TAG, "No label name for account type " + accountType);
	} catch (Resources.NotFoundException e) {
	Log.w(TAG, "No label resource for account type " + accountType);
	}
	}
	return label;
	}

	private void finishWithAccountType(String accountType) {
	Intent intent = new Intent();
	intent.putExtra(AddAccountSettings.EXTRA_SELECTED_ACCOUNT, accountType);
	intent.putExtra(EXTRA_USER, mUserHandle);
	mActivity.setResult(RESULT_OK, intent);
	mActivity.finish();
	}
	}