michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.sync.setup.activities;
michael@0: 
michael@0: import java.util.ArrayList;
michael@0: import java.util.Collection;
michael@0: import java.util.List;
michael@0: 
michael@0: import org.mozilla.gecko.R;
michael@0: import org.mozilla.gecko.sync.repositories.domain.ClientRecord;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.view.View;
michael@0: import android.view.View.OnClickListener;
michael@0: import android.view.ViewGroup;
michael@0: import android.widget.ArrayAdapter;
michael@0: import android.widget.CheckBox;
michael@0: import android.widget.ImageView;
michael@0: import android.widget.TextView;
michael@0: 
michael@0: public class ClientRecordArrayAdapter extends ArrayAdapter<ClientRecord> {
michael@0:   public static final String LOG_TAG = "ClientRecArrayAdapter";
michael@0: 
michael@0:   private boolean[] checkedItems;
michael@0:   private SendTabActivity sendTabActivity;
michael@0: 
michael@0:   public ClientRecordArrayAdapter(Context context,
michael@0:                                   int textViewResourceId) {
michael@0:     super(context, textViewResourceId, new ArrayList<ClientRecord>());
michael@0:     this.checkedItems = new boolean[0];
michael@0:     this.sendTabActivity = (SendTabActivity) context;
michael@0:   }
michael@0: 
michael@0:   public synchronized void setClientRecordList(final Collection<ClientRecord> clientRecordList) {
michael@0:     this.clear();
michael@0:     this.checkedItems = new boolean[clientRecordList.size()];
michael@0:     for (ClientRecord clientRecord : clientRecordList) {
michael@0:       this.add(clientRecord);
michael@0:     }
michael@0:     this.notifyDataSetChanged();
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * If we have only a single client record in the list, mark it as checked.
michael@0:    */
michael@0:   public synchronized void checkItem(final int position, boolean checked) throws ArrayIndexOutOfBoundsException {
michael@0:     if (position < 0 ||
michael@0:         position >= checkedItems.length) {
michael@0:       throw new ArrayIndexOutOfBoundsException(position);
michael@0:     }
michael@0: 
michael@0:     if (setRowChecked(position, true)) {
michael@0:       this.notifyDataSetChanged();
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Set the specified row to the specified checked state.
michael@0:    * @param position an index.
michael@0:    * @param checked whether the checkbox should be checked.
michael@0:    * @return <code>true</code> if the state changed, <code>false</code> if the
michael@0:    *         box was already in the requested state.
michael@0:    */
michael@0:   protected synchronized boolean setRowChecked(int position, boolean checked) {
michael@0:     boolean current = checkedItems[position];
michael@0:     if (current == checked) {
michael@0:       return false;
michael@0:     }
michael@0: 
michael@0:     checkedItems[position] = checked;
michael@0:     sendTabActivity.enableSend(getNumCheckedGUIDs() > 0);
michael@0: 
michael@0:     return true;
michael@0:   }
michael@0: 
michael@0:   @Override
michael@0:   public View getView(final int position, View convertView, ViewGroup parent) {
michael@0:     final Context context = this.getContext();
michael@0: 
michael@0:     // Reuse View objects if they exist.
michael@0:     View row = convertView;
michael@0:     if (row == null) {
michael@0:       row = View.inflate(context, R.layout.sync_list_item, null);
michael@0:       setSelectable(row, true);
michael@0:       row.setBackgroundResource(android.R.drawable.menuitem_background);
michael@0:     }
michael@0: 
michael@0:     final ClientRecord clientRecord = this.getItem(position);
michael@0:     ImageView clientType = (ImageView) row.findViewById(R.id.img);
michael@0:     TextView clientName = (TextView) row.findViewById(R.id.client_name);
michael@0: 
michael@0:     // Set up checkbox and restore stored state.
michael@0:     CheckBox checkbox = (CheckBox) row.findViewById(R.id.check);
michael@0:     checkbox.setChecked(checkedItems[position]);
michael@0:     setSelectable(checkbox, false);
michael@0: 
michael@0:     clientName.setText(clientRecord.name);
michael@0:     clientType.setImageResource(getImage(clientRecord));
michael@0: 
michael@0:     row.setOnClickListener(new OnClickListener() {
michael@0:       @Override
michael@0:       public void onClick(View view) {
michael@0:         final CheckBox item = (CheckBox) view.findViewById(R.id.check);
michael@0: 
michael@0:         // Update the checked item, both in the UI and in our internal state.
michael@0:         final boolean checked = !item.isChecked();    // Because it hasn't happened yet.
michael@0:         item.setChecked(checked);
michael@0:         setRowChecked(position, checked);
michael@0:       }
michael@0:     });
michael@0: 
michael@0:     return row;
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Get list of checked GUIDs.
michael@0:    *
michael@0:    * @return non-null list.
michael@0:    */
michael@0:   public synchronized List<String> getCheckedGUIDs() {
michael@0:     final List<String> guids = new ArrayList<String>();
michael@0:     for (int i = 0; i < checkedItems.length; i++) {
michael@0:       if (checkedItems[i]) {
michael@0:         guids.add(this.getItem(i).guid);
michael@0:       }
michael@0:     }
michael@0:     return guids;
michael@0:   }
michael@0: 
michael@0:   /**
michael@0:    * Get number of checked GUIDs.
michael@0:    *
michael@0:    * @return non-negative integer.
michael@0:    */
michael@0:   public synchronized int getNumCheckedGUIDs() {
michael@0:     int numCheckedGUIDs = 0;
michael@0:     for (int i = 0; i < checkedItems.length; i++) {
michael@0:       if (checkedItems[i]) {
michael@0:         numCheckedGUIDs += 1;
michael@0:       }
michael@0:     }
michael@0:     return numCheckedGUIDs;
michael@0:   }
michael@0: 
michael@0:   private int getImage(ClientRecord record) {
michael@0:     if ("mobile".equals(record.type)) {
michael@0:       return R.drawable.sync_mobile;
michael@0:     }
michael@0:     return R.drawable.sync_desktop;
michael@0:   }
michael@0: 
michael@0:   private void setSelectable(View view, boolean selectable) {
michael@0:     view.setClickable(selectable);
michael@0:     view.setFocusable(selectable);
michael@0:   }
michael@0: }