SearchListFragment.java

/**
    Copyright 2012 Fahad Al-Khameesi, Madeleine Appert, Niklas Logren, Arild Matsson and Jonathan Orrö.
    
    This file is part of Bibbla.

    Bibbla 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.

    Bibbla 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 Bibbla.  If not, see <http://www.gnu.org/licenses/>.    
 **/

package dat255.grupp06.bibbla.fragments;

import java.util.ArrayList;
import java.util.List;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ListAdapter;
import android.widget.ListView;

import com.actionbarsherlock.app.SherlockListFragment;

import dat255.grupp06.bibbla.MainActivity;
import dat255.grupp06.bibbla.frontend.BookOverlayActivity;
import dat255.grupp06.bibbla.model.Book;

/**
 * ListFragment that is used to display the search-results after a search.
 * 
 * @author Jonathan Orrö
 *
 */
public class SearchListFragment extends SherlockListFragment {
	public final static String BOOK = "dat255.grupp06.bibbla.BOOK";
	private ArrayList<Book> currentBooks;
	private int currentPage;
	private String lastSearch;
	
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        currentBooks = new ArrayList<Book>();
        currentPage = 0;
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
    	if(position < currentBooks.size()) {
	    	Intent intent = new Intent(getSherlockActivity(), BookOverlayActivity.class);
	    	intent.putExtra(BOOK, currentBooks.get(position));
	    	startActivity(intent);
    	} else {
    		currentPage++;
    		((MainActivity) getActivity()).moreSearchResultsClicked(currentPage+1, lastSearch);
    	}
    }
    
    /**
     * Receives the search-results and swaps the contents in the list with them.
     * @param books - a list of books that you want to replace the current list of books with.
     */
    public void updateList(List<Book> books) {
    	//Adds a book to act as a placeholder for the 
    	//"fetch more search results"-message
    	currentBooks.clear();
    	currentBooks.addAll(books);
    	if(currentBooks.size()==50) {
    		books.add(new Book());
    	}

    	ListAdapter adapter = new BookListAdapter(getSherlockActivity(), books, true, false);

    	this.setListAdapter(adapter);
    }
    
    /**
     * Adds a list of books to the current list of books
     * @param books - list of books to add to the current list of books
     */
    public void appendList(List<Book> books) {
    	int selection = currentBooks.size();
    	currentBooks.addAll(books);
    	currentBooks.add(new Book());
    	ListAdapter adapter = new BookListAdapter(getSherlockActivity(), currentBooks, true, false);
    	currentBooks.remove(currentBooks.size()-1);
    	this.setListAdapter(adapter);
    	this.setSelection(selection);
    }
    
    /**
     * Sets the last string the user searched for, so it knows what to search for if the user
     * wants more search results.
     * @param s - search string.
     */
    public void setLastSearchString(String s) {
    	lastSearch = s;
    }
}