core/java/android/content/SyncActivityTooManyDeletes.java

/*
 * Copyright (C) 2007 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 android.content;

import com.android.internal.R;
import android.accounts.Account;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;

/**
 * Presents multiple options for handling the case where a sync was aborted because there
 * were too many pending deletes. One option is to force the delete, another is to rollback
 * the deletes, the third is to do nothing.
 * @hide
 */
public class SyncActivityTooManyDeletes extends Activity
        implements AdapterView.OnItemClickListener {

    private long mNumDeletes;
    private Account mAccount;
    private String mAuthority;
    private String mProvider;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle extras = getIntent().getExtras();
        if (extras == null) {
            finish();
            return;
        }

        mNumDeletes = extras.getLong("numDeletes");
        mAccount = (Account) extras.getParcelable("account");
        mAuthority = extras.getString("authority");
        mProvider = extras.getString("provider");

        // the order of these must match up with the constants for position used in onItemClick
        CharSequence[] options = new CharSequence[]{
                getResources().getText(R.string.sync_really_delete),
                getResources().getText(R.string.sync_undo_deletes),
                getResources().getText(R.string.sync_do_nothing)
        };

        ListAdapter adapter = new ArrayAdapter<CharSequence>(this,
                android.R.layout.simple_list_item_1,
                android.R.id.text1,
                options);

        ListView listView = new ListView(this);
        listView.setAdapter(adapter);
        listView.setItemsCanFocus(true);
        listView.setOnItemClickListener(this);

        TextView textView = new TextView(this);
        CharSequence tooManyDeletesDescFormat =
                getResources().getText(R.string.sync_too_many_deletes_desc);
        textView.setText(String.format(tooManyDeletesDescFormat.toString(),
                mNumDeletes, mProvider, mAccount.name));

        final LinearLayout ll = new LinearLayout(this);
        ll.setOrientation(LinearLayout.VERTICAL);
        final LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, 0);
        ll.addView(textView, lp);
        ll.addView(listView, lp);

        // TODO: consider displaying the icon of the account type
//        AuthenticatorDescription[] descs = AccountManager.get(this).getAuthenticatorTypes();
//        for (AuthenticatorDescription desc : descs) {
//            if (desc.type.equals(mAccount.type)) {
//                try {
//                    final Context authContext = createPackageContext(desc.packageName, 0);
//                    ImageView imageView = new ImageView(this);
//                    imageView.setImageDrawable(authContext.getDrawable(desc.iconId));
//                    ll.addView(imageView, lp);
//                } catch (PackageManager.NameNotFoundException e) {
//                }
//                break;
//            }
//        }

        setContentView(ll);
    }

    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        // the constants for position correspond to the items options array in onCreate()
        if (position == 0) startSyncReallyDelete();
        else if (position == 1) startSyncUndoDeletes();
        finish();
    }

    private void startSyncReallyDelete() {
        Bundle extras = new Bundle();
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_OVERRIDE_TOO_MANY_DELETIONS, true);
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, true);
        ContentResolver.requestSync(mAccount, mAuthority, extras);
    }

    private void startSyncUndoDeletes() {
        Bundle extras = new Bundle();
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_DISCARD_LOCAL_DELETIONS, true);
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
        extras.putBoolean(ContentResolver.SYNC_EXTRAS_UPLOAD, true);
        ContentResolver.requestSync(mAccount, mAuthority, extras);
    }
}