com.springsource.greenhouse.events.sessions.EventSessionRatingActivity.java Source code

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Here is the source code for com.springsource.greenhouse.events.sessions.EventSessionRatingActivity.java

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/*
 * Copyright 2011 the original author or authors.
 *
 * 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.springsource.greenhouse.events.sessions;

import org.springframework.http.HttpStatus;
import org.springframework.social.greenhouse.api.Event;
import org.springframework.social.greenhouse.api.EventSession;
import org.springframework.web.client.HttpClientErrorException;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import com.springsource.greenhouse.AbstractGreenhouseActivity;
import com.springsource.greenhouse.R;

/**
 * @author Roy Clarkson
 */
public class EventSessionRatingActivity extends AbstractGreenhouseActivity {

    private static final String TAG = EventSessionRatingActivity.class.getSimpleName();

    private static final int MAX_LENGTH = 140;

    private TextWatcher textWatcher;

    private TextView textViewCount;

    private Event event;

    private EventSession session;

    private int rating;

    //***************************************
    // Activity methods
    //***************************************
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.event_session_rating);

        textViewCount = (TextView) this.findViewById(R.id.event_session_rating_count);
        textWatcher = new TextWatcher() {
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }

            public void onTextChanged(CharSequence s, int start, int before, int count) {
                textViewCount.setText(String.valueOf(MAX_LENGTH - s.length()));
            }

            public void afterTextChanged(Editable s) {
            }
        };

        final EditText editText = (EditText) findViewById(R.id.event_session_rating_text);
        editText.addTextChangedListener(textWatcher);

        final Button submitButton = (Button) findViewById(R.id.event_session_rating_submit);
        submitButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // hide the soft keypad
                InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(
                        Context.INPUT_METHOD_SERVICE);
                EditText editText = (EditText) findViewById(R.id.event_session_rating_text);
                inputMethodManager.hideSoftInputFromWindow(editText.getWindowToken(), 0);
                submitRating();
            }
        });

        final Button selectStartButton = (Button) findViewById(R.id.event_session_rating_select_star);
        selectStartButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                showSelectStarRatingDialog();
            }
        });
    }

    @Override
    public void onStart() {
        super.onStart();
        event = getApplicationContext().getSelectedEvent();
        session = getApplicationContext().getSelectedSession();
        setRating(5);
    }

    //***************************************
    // Private methods
    //***************************************
    private void showSelectStarRatingDialog() {
        final CharSequence[] items = { "5 Stars", "4 Stars", "3 Stars", "2 Stars", "1 Star" };
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Select a Star Value");
        builder.setItems(items, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int item) {
                setRating(5 - item);
            }
        });
        AlertDialog alert = builder.create();
        alert.show();
    }

    private void setRating(int rating) {
        this.rating = rating;
        final TextView textView = (TextView) findViewById(R.id.event_session_rating_stars);
        textView.setText(getRating() + " Stars");
    }

    private int getRating() {
        return rating;
    }

    private String getComment() {
        EditText editText = (EditText) findViewById(R.id.event_session_rating_text);
        return editText.getText().toString();
    }

    private void submitRating() {
        new SubmitRatingTask().execute();
    }

    private void showResult(String result) {
        //      Toast.makeText(this, result, Toast.LENGTH_LONG).show();
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage(result);
        builder.setCancelable(false);
        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                dialog.cancel();
            }
        });
        AlertDialog alert = builder.create();
        alert.show();
    }

    //***************************************
    // Private classes
    //***************************************
    private class SubmitRatingTask extends AsyncTask<Void, Void, String> {
        @Override
        protected void onPreExecute() {
            showProgressDialog("Submitting Rating...");
        }

        @Override
        protected String doInBackground(Void... params) {
            try {
                float newRating = getApplicationContext().getGreenhouseApi().sessionOperations()
                        .rateSession(event.getId(), session.getId(), getRating(), getComment());
                session.setRating(newRating);
                return "Thank you for rating this session!";
            } catch (HttpClientErrorException e) {
                if (e.getStatusCode() == HttpStatus.PRECONDITION_FAILED) {
                    return "This session has not yet finished. Please wait until the session has completed before submitting your rating.";
                } else {
                    Log.e(TAG, e.getLocalizedMessage(), e);
                    return "A problem occurred while submitting the rating.";
                }
            } catch (Exception e) {
                Log.e(TAG, e.getLocalizedMessage(), e);
                return "A problem occurred while submitting the rating.";
            }
        }

        @Override
        protected void onPostExecute(String result) {
            dismissProgressDialog();
            showResult(result);
        }
    }

}