org.totschnig.myexpenses.activity.ProtectionDelegate.java Source code

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Here is the source code for org.totschnig.myexpenses.activity.ProtectionDelegate.java

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/*   This file is part of My Expenses.
 *   My Expenses is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   My Expenses is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with My Expenses.  If not, see <http://www.gnu.org/licenses/>.
*/

package org.totschnig.myexpenses.activity;

import java.io.Serializable;

import org.totschnig.myexpenses.MyApplication;
import org.totschnig.myexpenses.dialog.DialogUtils;
import org.totschnig.myexpenses.dialog.ProgressDialogFragment;
import org.totschnig.myexpenses.task.TaskExecutionFragment;

import android.app.Activity;
import android.support.v7.app.AlertDialog;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.widget.Toast;

/**
 * methods both needed by {@link ProtectedFragmentActivity} and now defunct
 * ProtectedFragmentActivityNoAppCompat
 * @author Michael Totschnig
 *
 */
public class ProtectionDelegate {
    public static final String PROGRESS_TAG = "PROGRESS";
    public static final String ASYNC_TAG = "ASYNC_TASK";
    public static final int CONTRIB_REQUEST = 100;
    public static final int PERMISSIONS_REQUEST_WRITE_CALENDAR = 1;
    Activity ctx;

    public ProtectionDelegate(Activity ctx) {
        this.ctx = ctx;
    }

    protected void handleOnPause(AlertDialog pwDialog) {
        MyApplication app = MyApplication.getInstance();
        if (app.isLocked() && pwDialog != null)
            pwDialog.dismiss();
        else {
            app.setLastPause(ctx);
        }
    }

    protected AlertDialog hanldeOnResume(AlertDialog pwDialog) {
        MyApplication app = MyApplication.getInstance();
        if (app.shouldLock(ctx)) {
            if (pwDialog == null)
                pwDialog = DialogUtils.passwordDialog(ctx, false);
            DialogUtils.showPasswordDialog(ctx, pwDialog, true, null);
        }
        return pwDialog;
    }

    public void removeAsyncTaskFragment(boolean keepProgress) {
        FragmentManager m = ((FragmentActivity) ctx).getSupportFragmentManager();
        FragmentTransaction t = m.beginTransaction();
        ProgressDialogFragment f = ((ProgressDialogFragment) m.findFragmentByTag(PROGRESS_TAG));
        if (f != null) {
            if (keepProgress) {
                f.onTaskCompleted();
            } else {
                t.remove(f);
            }
        }
        t.remove(m.findFragmentByTag(ASYNC_TAG));
        t.commitAllowingStateLoss();
        //we might want to call a new task immediately after executing the last one
        m.executePendingTransactions();
    }

    public void removeAsyncTaskFragment(int taskId) {
        removeAsyncTaskFragment(
                taskId == TaskExecutionFragment.TASK_QIF_IMPORT || taskId == TaskExecutionFragment.TASK_EXPORT);
    }

    public void updateProgressDialog(Object progress) {
        FragmentManager m = ((FragmentActivity) ctx).getSupportFragmentManager();
        ProgressDialogFragment f = ((ProgressDialogFragment) m.findFragmentByTag(PROGRESS_TAG));
        if (f != null) {
            if (progress instanceof Integer) {
                f.setProgress((Integer) progress);
            } else if (progress instanceof String) {
                f.appendToMessage((String) progress);
            }
        }
    }

    public <T> void startTaskExecution(int taskId, T[] objectIds, Serializable extra, int progressMessage) {
        FragmentManager m = ((FragmentActivity) ctx).getSupportFragmentManager();
        if (m.findFragmentByTag(ASYNC_TAG) != null) {
            Toast.makeText(ctx.getBaseContext(), "Previous task still executing, please try again later",
                    Toast.LENGTH_LONG).show();
        } else {
            //noinspection AndroidLintCommitTransaction
            FragmentTransaction ft = m.beginTransaction()
                    .add(TaskExecutionFragment.newInstance(taskId, objectIds, extra), ASYNC_TAG);
            if (progressMessage != 0) {
                ft.add(ProgressDialogFragment.newInstance(progressMessage), PROGRESS_TAG);
            }
            ft.commit();
        }
    }
}