com.googlecode.android_scripting.facade.ui.SeekBarDialogTask.java Source code

Introduction

Here is the source code for com.googlecode.android_scripting.facade.ui.SeekBarDialogTask.java

Source

/*
 * Copyright (C) 2010 Google Inc.
 *
 * 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.googlecode.android_scripting.facade.ui;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.util.AndroidRuntimeException;
import android.widget.SeekBar;

import com.googlecode.android_scripting.Log;
import com.googlecode.android_scripting.facade.EventFacade;

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

/**
 * Wrapper class for dialog box with seek bar.
 * 
 * @author MeanEYE.rcf (meaneye.rcf@gmail.com)
 */
public class SeekBarDialogTask extends DialogTask {

    private SeekBar mSeekBar;
    private final int mProgress;
    private final int mMax;
    private final String mTitle;
    private final String mMessage;
    private String mPositiveButtonText;
    private String mNegativeButtonText;

    public SeekBarDialogTask(int progress, int max, String title, String message) {
        mProgress = progress;
        mMax = max;
        mTitle = title;
        mMessage = message;
    }

    public void setPositiveButtonText(String text) {
        mPositiveButtonText = text;
    }

    public void setNegativeButtonText(String text) {
        mNegativeButtonText = text;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        mSeekBar = new SeekBar(getActivity());
        mSeekBar.setMax(mMax);
        mSeekBar.setProgress(mProgress);
        mSeekBar.setPadding(10, 0, 10, 3);
        mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar arg0) {
            }

            public void onStartTrackingTouch(SeekBar arg0) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                EventFacade eventFacade = getEventFacade();
                if (eventFacade != null) {
                    JSONObject result = new JSONObject();
                    try {
                        result.put("which", "seekbar");
                        result.put("progress", mSeekBar.getProgress());
                        result.put("fromuser", fromUser);
                        eventFacade.postEvent("dialog", result);
                    } catch (JSONException e) {
                        Log.e(e);
                    }
                }
            }
        });

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        if (mTitle != null) {
            builder.setTitle(mTitle);
        }
        if (mMessage != null) {
            builder.setMessage(mMessage);
        }
        builder.setView(mSeekBar);
        configureButtons(builder, getActivity());
        addOnCancelListener(builder, getActivity());
        mDialog = builder.show();
        mShowLatch.countDown();
    }

    private Builder addOnCancelListener(final AlertDialog.Builder builder, final Activity activity) {
        return builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
            public void onCancel(DialogInterface dialog) {
                JSONObject result = new JSONObject();
                try {
                    result.put("canceled", true);
                    result.put("progress", mSeekBar.getProgress());
                } catch (JSONException e) {
                    Log.e(e);
                }
                dismissDialog();
                setResult(result);
            }
        });
    }

    private void configureButtons(final AlertDialog.Builder builder, final Activity activity) {
        DialogInterface.OnClickListener buttonListener = new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                JSONObject result = new JSONObject();
                switch (which) {
                case DialogInterface.BUTTON_POSITIVE:
                    try {
                        result.put("which", "positive");
                        result.put("progress", mSeekBar.getProgress());
                    } catch (JSONException e) {
                        throw new AndroidRuntimeException(e);
                    }
                    break;
                case DialogInterface.BUTTON_NEGATIVE:
                    try {
                        result.put("which", "negative");
                        result.put("progress", mSeekBar.getProgress());
                    } catch (JSONException e) {
                        throw new AndroidRuntimeException(e);
                    }
                    break;
                }
                dismissDialog();
                setResult(result);
            }
        };
        if (mNegativeButtonText != null) {
            builder.setNegativeButton(mNegativeButtonText, buttonListener);
        }
        if (mPositiveButtonText != null) {
            builder.setPositiveButton(mPositiveButtonText, buttonListener);
        }
    }
}