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/*
* Copyright (C) 2010 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 android.accounts.AccountManager;
import android.accounts.AuthenticatorDescription;
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.Bundle;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.preference.PreferenceScreen;
import android.util.Log;
import com.android.internal.util.CharSequences;
import com.android.settings.R;
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.Map;
/**
* Activity asking a user to select an account to be set up.
*/
public class ChooseAccountActivity extends PreferenceActivity {
private static final String TAG = "ChooseAccountActivity";
private String[] mAuthorities;
private PreferenceGroup mAddAccountGroup;
private final ArrayList<ProviderEntry> mProviderList = new ArrayList<ProviderEntry>();
public HashSet<String> mAccountTypesFilter;
private AuthenticatorDescription[] mAuthDescs;
private HashMap<String, ArrayList<String>> mAccountTypeToAuthorities = null;
private Map<String, AuthenticatorDescription> mTypeToAuthDescription
= new HashMap<String, AuthenticatorDescription>();
private static class ProviderEntry implements Comparable<ProviderEntry> {
private final CharSequence name;
private final String type;
ProviderEntry(CharSequence providerName, String accountType) {
name = providerName;
type = accountType;
}
public int compareTo(ProviderEntry another) {
if (name == null) {
return -1;
}
if (another.name == null) {
return +1;
}
return CharSequences.compareToIgnoreCase(name, another.name);
}
}
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.add_account_screen);
addPreferencesFromResource(R.xml.add_account_settings);
mAuthorities = getIntent().getStringArrayExtra(
AccountPreferenceBase.AUTHORITIES_FILTER_KEY);
String[] accountTypesFilter = getIntent().getStringArrayExtra(
AccountPreferenceBase.ACCOUNT_TYPES_FILTER_KEY);
if (accountTypesFilter != null) {
mAccountTypesFilter = new HashSet<String>();
for (String accountType : accountTypesFilter) {
mAccountTypesFilter.add(accountType);
}
}
mAddAccountGroup = getPreferenceScreen();
updateAuthDescriptions();
}
/**
* 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(this).getAuthenticatorTypes();
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++) {
String accountType = mAuthDescs[i].type;
CharSequence providerName = getLabelForType(accountType);
// Skip preferences for authorities not specified. If no authorities specified,
// then include them all.
ArrayList<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");
}
}
}
if (mProviderList.size() == 1) {
// If there's only one provider that matches, just run it.
finishWithAccountType(mProviderList.get(0).type);
} else if (mProviderList.size() > 0) {
Collections.sort(mProviderList);
mAddAccountGroup.removeAll();
for (ProviderEntry pref : mProviderList) {
Drawable drawable = getDrawableForType(pref.type);
ProviderPreference p =
new ProviderPreference(this, pref.type, drawable, pref.name);
mAddAccountGroup.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);
}
setResult(RESULT_CANCELED);
finish();
}
}
public ArrayList<String> getAuthoritiesForAccountType(String type) {
if (mAccountTypeToAuthorities == null) {
mAccountTypeToAuthorities = Maps.newHashMap();
SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypes();
for (int i = 0, n = syncAdapters.length; i < n; i++) {
final SyncAdapterType sa = syncAdapters[i];
ArrayList<String> authorities = mAccountTypeToAuthorities.get(sa.accountType);
if (authorities == null) {
authorities = new ArrayList<String>();
mAccountTypeToAuthorities.put(sa.accountType, authorities);
}
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.d(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 null if one cannot be found.
*/
protected Drawable getDrawableForType(final String accountType) {
Drawable icon = null;
if (mTypeToAuthDescription.containsKey(accountType)) {
try {
AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
Context authContext = createPackageContext(desc.packageName, 0);
icon = authContext.getResources().getDrawable(desc.iconId);
} catch (PackageManager.NameNotFoundException e) {
// TODO: place holder icon for missing account icons?
Log.w(TAG, "No icon name for account type " + accountType);
} catch (Resources.NotFoundException e) {
// TODO: place holder icon for missing account icons?
Log.w(TAG, "No icon resource for account type " + accountType);
}
}
return icon;
}
/**
* 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.
*/
protected CharSequence getLabelForType(final String accountType) {
CharSequence label = null;
if (mTypeToAuthDescription.containsKey(accountType)) {
try {
AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
Context authContext = createPackageContext(desc.packageName, 0);
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;
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen preferences, Preference preference) {
if (preference instanceof ProviderPreference) {
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;
}
private void finishWithAccountType(String accountType) {
Intent intent = new Intent();
intent.putExtra(AddAccountSettings.EXTRA_SELECTED_ACCOUNT, accountType);
setResult(RESULT_OK, intent);
finish();
}
}
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