262 lines
8.9 KiB
Java
262 lines
8.9 KiB
Java
package com.owncloud.android.ui.activity;
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import android.accounts.Account;
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import android.accounts.AccountManager;
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import android.accounts.AccountManagerCallback;
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import android.accounts.AccountManagerFuture;
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import android.accounts.OperationCanceledException;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.Handler;
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import com.nextcloud.client.account.UserAccountManager;
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import com.nextcloud.client.di.Injectable;
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import com.owncloud.android.MainApp;
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import com.owncloud.android.authentication.AccountUtils;
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import com.owncloud.android.datamodel.FileDataStorageManager;
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import com.owncloud.android.datamodel.OCFile;
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import com.owncloud.android.lib.common.utils.Log_OC;
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import com.owncloud.android.lib.resources.status.OCCapability;
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import javax.inject.Inject;
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import androidx.appcompat.app.AppCompatActivity;
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/**
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* Base activity with common behaviour for activities dealing with ownCloud {@link Account}s .
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*/
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public abstract class BaseActivity extends AppCompatActivity implements Injectable {
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private static final String TAG = BaseActivity.class.getSimpleName();
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/**
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* ownCloud {@link Account} where the main {@link OCFile} handled by the activity is located.
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*/
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private Account mCurrentAccount;
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/**
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* Capabilities of the server where {@link #mCurrentAccount} lives.
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*/
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private OCCapability mCapabilities;
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/**
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* Flag to signal when the value of mAccount was set.
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*/
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protected boolean mAccountWasSet;
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/**
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* Flag to signal when the value of mAccount was restored from a saved state.
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*/
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protected boolean mAccountWasRestored;
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/**
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* Access point to the cached database for the current ownCloud {@link Account}.
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*/
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private FileDataStorageManager mStorageManager;
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@Inject UserAccountManager accountManager;
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public UserAccountManager getUserAccountManager() {
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return accountManager;
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}
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@Override
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protected void onNewIntent (Intent intent) {
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Log_OC.v(TAG, "onNewIntent() start");
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Account current = accountManager.getCurrentAccount();
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if (current != null && mCurrentAccount != null && !mCurrentAccount.name.equals(current.name)) {
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mCurrentAccount = current;
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}
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Log_OC.v(TAG, "onNewIntent() stop");
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}
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/**
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* Since ownCloud {@link Account}s can be managed from the system setting menu, the existence of the {@link
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* Account} associated to the instance must be checked every time it is restarted.
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*/
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@Override
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protected void onRestart() {
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Log_OC.v(TAG, "onRestart() start");
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super.onRestart();
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boolean validAccount = mCurrentAccount != null && AccountUtils.exists(mCurrentAccount, this);
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if (!validAccount) {
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swapToDefaultAccount();
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}
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Log_OC.v(TAG, "onRestart() end");
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}
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/**
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* Sets and validates the ownCloud {@link Account} associated to the Activity.
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*
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* If not valid, tries to swap it for other valid and existing ownCloud {@link Account}.
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*
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* POSTCONDITION: updates {@link #mAccountWasSet} and {@link #mAccountWasRestored}.
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*
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* @param account New {@link Account} to set.
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* @param savedAccount When 'true', account was retrieved from a saved instance state.
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*/
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protected void setAccount(Account account, boolean savedAccount) {
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Account oldAccount = mCurrentAccount;
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boolean validAccount =
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account != null && AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), account.name);
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if (validAccount) {
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mCurrentAccount = account;
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mAccountWasSet = true;
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mAccountWasRestored = savedAccount || mCurrentAccount.equals(oldAccount);
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} else {
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swapToDefaultAccount();
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}
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}
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/**
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* Tries to swap the current ownCloud {@link Account} for other valid and existing.
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*
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* If no valid ownCloud {@link Account} exists, then the user is requested
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* to create a new ownCloud {@link Account}.
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*
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* POSTCONDITION: updates {@link #mAccountWasSet} and {@link #mAccountWasRestored}.
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*/
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protected void swapToDefaultAccount() {
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// default to the most recently used account
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Account newAccount = accountManager.getCurrentAccount();
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if (newAccount == null) {
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/// no account available: force account creation
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createAccount(true);
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mAccountWasSet = false;
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mAccountWasRestored = false;
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} else {
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mAccountWasSet = true;
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mAccountWasRestored = newAccount.equals(mCurrentAccount);
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mCurrentAccount = newAccount;
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}
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}
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/**
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* Launches the account creation activity.
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*
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* @param mandatoryCreation When 'true', if an account is not created by the user, the app will be closed.
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* To use when no ownCloud account is available.
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*/
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protected void createAccount(boolean mandatoryCreation) {
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AccountManager am = AccountManager.get(getApplicationContext());
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am.addAccount(MainApp.getAccountType(this),
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null,
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null,
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null,
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this,
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new AccountCreationCallback(mandatoryCreation),
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new Handler());
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}
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/**
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* Called when the ownCloud {@link Account} associated to the Activity was just updated.
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*
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* Child classes must grant that state depending on the {@link Account} is updated.
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*/
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protected void onAccountSet(boolean stateWasRecovered) {
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if (getAccount() != null) {
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mStorageManager = new FileDataStorageManager(getAccount(), getContentResolver());
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mCapabilities = mStorageManager.getCapability(mCurrentAccount.name);
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} else {
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Log_OC.e(TAG, "onAccountChanged was called with NULL account associated!");
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}
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}
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protected void setAccount(Account account) {
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mCurrentAccount = account;
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}
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/**
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* Getter for the capabilities of the server where the current OC account lives.
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*
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* @return Capabilities of the server where the current OC account lives. Null if the account is not
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* set yet.
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*/
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public OCCapability getCapabilities() {
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return mCapabilities;
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}
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/**
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* Getter for the ownCloud {@link Account} where the main {@link OCFile} handled by the activity
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* is located.
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*
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* @return OwnCloud {@link Account} where the main {@link OCFile} handled by the activity
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* is located.
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*/
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public Account getAccount() {
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return mCurrentAccount;
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}
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@Override
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protected void onStart() {
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super.onStart();
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if (mAccountWasSet) {
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onAccountSet(mAccountWasRestored);
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}
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}
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public FileDataStorageManager getStorageManager() {
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return mStorageManager;
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}
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/**
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* Method that gets called when a new account has been successfully created.
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*
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* @param future
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*/
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protected void onAccountCreationSuccessful(AccountManagerFuture<Bundle> future) {
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// no special handling in base activity
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Log_OC.d(TAG,"onAccountCreationSuccessful");
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}
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/**
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* Helper class handling a callback from the {@link AccountManager} after the creation of
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* a new ownCloud {@link Account} finished, successfully or not.
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*/
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public class AccountCreationCallback implements AccountManagerCallback<Bundle> {
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boolean mMandatoryCreation;
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/**
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* Constructor
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*
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* @param mandatoryCreation When 'true', if an account was not created, the app is closed.
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*/
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public AccountCreationCallback(boolean mandatoryCreation) {
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mMandatoryCreation = mandatoryCreation;
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}
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@Override
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public void run(AccountManagerFuture<Bundle> future) {
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boolean accountWasSet = false;
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if (future != null) {
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try {
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Bundle result;
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result = future.getResult();
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String name = result.getString(AccountManager.KEY_ACCOUNT_NAME);
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String type = result.getString(AccountManager.KEY_ACCOUNT_TYPE);
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if (AccountUtils.setCurrentOwnCloudAccount(getApplicationContext(), name)) {
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setAccount(new Account(name, type), false);
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accountWasSet = true;
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}
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onAccountCreationSuccessful(future);
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} catch (OperationCanceledException e) {
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Log_OC.d(TAG, "Account creation canceled");
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} catch (Exception e) {
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Log_OC.e(TAG, "Account creation finished in exception: ", e);
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}
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} else {
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Log_OC.e(TAG, "Account creation callback with null bundle");
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}
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if (mMandatoryCreation && !accountWasSet) {
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moveTaskToBack(true);
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}
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}
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}
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}
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