edu.rowan.app.fragments.FoodCommentFragment.java Source code

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Here is the source code for edu.rowan.app.fragments.FoodCommentFragment.java

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/**
 * Copyright 2013 Tom Renn
 *
 * 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 edu.rowan.app.fragments;

import java.io.UnsupportedEncodingException;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;

import org.json.JSONException;
import org.json.JSONObject;

import rowan.application.quickaccess.R;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.actionbarsherlock.view.MenuItem;

import edu.rowan.app.util.JsonQueryManager;
import edu.rowan.app.util.SimpleUpFragment;

public class FoodCommentFragment extends SimpleUpFragment implements JsonQueryManager.Callback {
    private String foodEntryId;
    private String userId;
    private String userComment;
    public static final String FOOD_COMMENT_ADDR = "http://therowanuniversity.appspot.com/food/comment";
    private static final String COMMENT_PARAM = "comment";

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

        Bundle args = getArguments();
        foodEntryId = args.getString(FoodRatingFragment.FOOD_ENTRY_ID);
        userId = args.getString(FoodRatingFragment.USER_ID);
    }

    public void onStart() {
        super.onStart();
        InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
    }

    /**
     * Setup the view and set the button action when clicked
     */
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.food_comment_layout, container, false);

        Button submit = (Button) view.findViewById(R.id.commentButton);
        final EditText commentField = (EditText) view.findViewById(R.id.commentField);

        submit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                hideKeyboard(commentField);

                JsonQueryManager jsonManager = JsonQueryManager.getInstance(getActivity());
                Map<String, String> params = new HashMap<String, String>();
                String comment = commentField.getText().toString();
                comment = comment.replaceAll("<.*>", "");
                userComment = comment;
                try {
                    comment = java.net.URLEncoder.encode(comment, "UTF-8");
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                    Toast.makeText(getActivity(), e.getMessage(), Toast.LENGTH_SHORT).show();
                }
                params.put(FoodRatingFragment.FOOD_ENTRY_ID, foodEntryId);
                params.put(FoodRatingFragment.USER_ID, userId);
                params.put(COMMENT_PARAM, comment);
                jsonManager.requestJson(FOOD_COMMENT_ADDR, params, FoodCommentFragment.this);
            }
        });

        return view;
    }

    public void updateLocalComments(String userComment) {
        SharedPreferences prefs = getActivity().getSharedPreferences(FoodRatingFragment.PREFS, 0);
        String jsonEntry = prefs.getString(foodEntryId, null);
        if (jsonEntry != null) {
            try {
                JSONObject json = new JSONObject(jsonEntry);
                JSONObject commentDict = json.getJSONObject("comments");
                long timestamp = Calendar.getInstance().getTimeInMillis() / 1000;
                int numComments = json.getInt("numComments");
                JSONObject newComment = new JSONObject();
                newComment.put("date", timestamp);
                newComment.put("comment", userComment);
                commentDict.put(String.valueOf(numComments), newComment);
                numComments = numComments++;
                //            json.put("numComments", numComments);
                Editor edit = prefs.edit();
                edit.putString(foodEntryId, json.toString());
                edit.commit();
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    }

    // When we receving the message back from the web service
    @Override
    public void receiveJson(JSONObject json, String origin) {
        Toast.makeText(getActivity(), "Comment successfully posted", Toast.LENGTH_SHORT).show();
        updateLocalComments(userComment);
        getActivity().onBackPressed();
    }

    public void hideKeyboard(EditText commentField) {
        // hide keyboard
        InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(commentField.getWindowToken(), 0);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            hideKeyboard((EditText) getView().findViewById(R.id.commentField));
            getSherlockActivity().getSupportFragmentManager().popBackStackImmediate();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

}