com.bydavy.card.receipts.ShopSuggestionAdapter.java Source code

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Here is the source code for com.bydavy.card.receipts.ShopSuggestionAdapter.java

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/*
 * Copyright (C) 2012 Davy Leggieri
 * 
 * This program 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 2
 * of the License, or (at your option) any later version.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
package com.bydavy.card.receipts;

import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.support.v4.widget.CursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.FilterQueryProvider;
import android.widget.Filterable;
import android.widget.TextView;

import com.bydavy.card.receipts.providers.Shops;
import com.bydavy.card.receipts.services.SuggestionService;

public class ShopSuggestionAdapter extends CursorAdapter implements Filterable {

    private static final String[] PROJECTION = new String[] { Shops._ID, Shops.COLUMN_NAME_NAME };
    private static final int COLUMN_TO_DISPLAY_INDEX = 1;

    private static final String SORT_ORDER_LATEST_USE = Shops.COLUMN_NAME_COUNT + " DESC";

    private static final String SELECTION;
    static {
        final StringBuilder buffer = new StringBuilder("SELECT ");
        buffer.append(Shops.COLUMN_NAME_NAME);
        buffer.append(" LIKE '%' || ? || '%'");
        SELECTION = buffer.toString();
    }

    private final Context mContext;
    private final AutoCompleteTextView mAutoCompleteTextView;

    @SuppressWarnings("deprecation")
    public ShopSuggestionAdapter(Context context, AutoCompleteTextView autoCompleteTextView) {
        super(context, null);
        mContext = context;
        mAutoCompleteTextView = autoCompleteTextView;
        setFilterQueryProvider(new ShopNameFilterQueryProvider());
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {

        final String shop = cursor.getString(COLUMN_TO_DISPLAY_INDEX);

        /*
         * ViewHolder holder = (ViewHolder) view.getTag(); holder.shop = shop;
         * holder.shopTV.setText(shop);
         */
        ((TextView) view).setText(shop);
    }

    @Override
    public View newView(Context context, Cursor cursor, ViewGroup parent) {
        final LayoutInflater inflater = LayoutInflater.from(context);
        /*
         * final View view = inflater.inflate( R.layout.dropdown_cancelable,
         * parent, false);
         * 
         * ViewHolder holder = new ViewHolder(); holder.shopTV = (TextView)
         * view.findViewById(R.id.shop); holder.blacklistButton = (Button)
         * view.findViewById(R.id.blacklist);
         * holder.blacklistButton.setOnClickListener(new OnClickListener() {
         * public void onClick(View v) { ViewHolder holder = (ViewHolder)
         * view.getTag(); blacklist(holder.shop);
         * mAutoCompleteTextView.dismissDropDown(); } }); view.setTag(holder);
         */
        final View view = inflater.inflate(android.R.layout.simple_dropdown_item_1line, parent, false);

        return view;
    }

    private static class ViewHolder {
        public String shop;
        public TextView shopTV;
        public Button blacklistButton;
    }

    @Override
    public String convertToString(Cursor cursor) {
        return cursor.getString(COLUMN_TO_DISPLAY_INDEX);
    }

    private void blacklist(String shop) {
        final Intent intent = new Intent(mContext, SuggestionService.class);
        intent.putExtra(SuggestionService.INTENT_ACTION, SuggestionService.ACTION_BLACKLIST);
        intent.putExtra(SuggestionService.INTENT_SHOP_NAME, shop);
        mContext.startService(intent);
    }

    private class ShopNameFilterQueryProvider implements FilterQueryProvider {
        /* Avoid GC and reuse this array */
        private final String[] mSelectionArgs = new String[1];

        @Override
        public Cursor runQuery(CharSequence constraint) {
            if (constraint != null) {
                mSelectionArgs[0] = constraint.toString();
                return mContext.getContentResolver().query(Shops.CONTENT_URI, PROJECTION, SELECTION, mSelectionArgs,
                        SORT_ORDER_LATEST_USE);
            }
            return null;
        }

    }

}