org.jnrain.mobile.ReadThreadActivity.java Source code

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Here is the source code for org.jnrain.mobile.ReadThreadActivity.java

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/*
 * Copyright 2012-2013 JNRain
 * 
 * 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 org.jnrain.mobile;

import org.jnrain.mobile.util.SpicedRoboFragmentActivity;
import org.jnrain.weiyu.entity.Post;

import roboguice.inject.InjectView;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.util.Log;

import com.viewpagerindicator.TitlePageIndicator;
import com.viewpagerindicator.TitlePageIndicator.IndicatorStyle;

@SuppressWarnings("rawtypes")
public class ReadThreadActivity extends SpicedRoboFragmentActivity implements ReadThreadActivityListener {
    @InjectView(R.id.pager)
    ViewPager viewPager;
    @InjectView(R.id.indicator)
    TitlePageIndicator indicator;

    ReadThreadFragmentAdapter _adapter;

    private String _brd_id;
    private String _title;
    private long _tid;
    private int _totalposts;

    private int _page;
    private int _totalpages;

    public static final int POSTS_PER_PAGE = 10;
    private static final String TAG = "ReadThreadActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dyn_pages);
        _adapter = new ReadThreadFragmentAdapter(getSupportFragmentManager(), getApplicationContext());
        viewPager.setAdapter(_adapter);
        indicator.setViewPager(viewPager);
        indicator.setFooterIndicatorStyle(IndicatorStyle.Triangle);

        // Show the Up button in the action bar.
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        Intent intent = getIntent();
        this._brd_id = intent.getStringExtra(BoardListActivity.BRD_ID);
        this._tid = intent.getLongExtra(ThreadListActivity.THREAD_ID, -1);
        this._title = intent.getStringExtra(ThreadListActivity.THREAD_TITLE);
        this._totalposts = intent.getIntExtra(BoardListActivity.NUM_POSTS, 1);

        // update title of action bar
        getSupportActionBar().setTitle(this._title);

        _totalpages = (int) Math.ceil((double) _totalposts / POSTS_PER_PAGE);

        // initial tabs
        addReplyPage(1);
        if (_totalpages == 1) {
            _page = 1;
        } else {
            _page = 2;
            addReplyPage(2);
        }

        // pager listener
        indicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrollStateChanged(int state) {
                // intentionally left blank
                // Log.d(TAG, "PageScrollStateChanged: " +
                // Integer.toString(state));
            }

            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
                // intentionally left blank
            }

            @Override
            public void onPageSelected(int position) {
                Log.d(TAG, "PageSelected: " + Integer.toString(position) + ", _page = " + Integer.toString(_page));
                if (position == _page - 1) {
                    // last tab, add another page if there are still
                    // enough
                    // threads to display
                    if (_page < _totalpages) {
                        _page++;
                        addReplyPage(_page);
                    }
                }
            }
        });
    }

    public void addReplyPage(int page) {
        _adapter.addItem(this._brd_id, this._tid, page);
    }

    public void showReplyActivityFor(Post post) {
        Log.d(TAG, "reply to post " + post.toString() + " pressed");

        // reply title
        String postTitle = post.getTitle();
        String replyTitle = "";
        if (postTitle.startsWith("Re:")) {
            // prevent flooding of "Re: "'s
            replyTitle = postTitle;
        } else {
            replyTitle = "Re: " + postTitle;
        }

        // fire up post activity
        Intent intent = new Intent();
        intent.setClass(this, NewPostActivity.class);
        intent.putExtra(BoardListActivity.BRD_ID, _brd_id);
        intent.putExtra(NewPostActivity.IS_NEW_THREAD, false);
        intent.putExtra(ThreadListActivity.THREAD_ID, _tid);
        intent.putExtra(NewPostActivity.IN_REPLY_TO, post.getID());
        intent.putExtra(ThreadListActivity.THREAD_TITLE, replyTitle);

        startActivity(intent);
    }
}