/*******************************************************************************
* Copyright (c) 2013 EclipseSource and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* EclipseSource - initial API and implementation
******************************************************************************/
package com.eclipsesource.tabris.internal;
import static com.eclipsesource.tabris.internal.Clauses.when;
import static com.eclipsesource.tabris.internal.Clauses.whenNot;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import com.eclipsesource.tabris.widgets.swipe.SwipeItem;
public class SwipeItemHolder implements Serializable {
private final Map<Integer, SwipeItem> items;
private final Map<Integer, Control> contentHolder;
public SwipeItemHolder() {
items = new HashMap<Integer, SwipeItem>();
contentHolder = new HashMap<Integer, Control>();
}
public void addItem( int index, SwipeItem item, Composite content ) {
addItem( index, item );
setContentForItem( index, content );
}
public void addItem( int index, SwipeItem item ) {
when( items.containsKey( getKey( index ) ) ).throwIllegalState( "Item for index " + index + " already exists." );
items.put( getKey( index ), item );
}
public void removeItem( int index ) {
items.remove( getKey( index ) );
removeContentForItem( index );
}
public void removeAllItems() {
HashMap<Integer, SwipeItem> itemsCopy = new HashMap<Integer, SwipeItem>( items );
for( Entry<Integer, SwipeItem> entry : itemsCopy.entrySet() ) {
removeItem( entry.getKey().intValue() );
}
}
public SwipeItem getItem( int index ) {
return items.get( getKey( index ) );
}
public boolean hasItem( int index ) {
return items.containsKey( getKey( index ) );
}
public void setContentForItem( int index, Control content ) {
whenNot( items.containsKey( getKey( index ) ) ).throwIllegalState( "Item for index " + index + " does not exist." );
contentHolder.put( getKey( index ), content );
}
public boolean isLoaded( int index ) {
return contentHolder.containsKey( getKey( index ) );
}
public List<Integer> getLoadedItems() {
Set<Integer> keySet = contentHolder.keySet();
return new ArrayList<Integer>( keySet );
}
public Control getContentForItem( int index ) {
return contentHolder.get( getKey( index ) );
}
public void removeContentForItem( int index ) {
Control content = contentHolder.remove( getKey( index ) );
if( content != null ) {
content.dispose();
}
}
private Integer getKey( int index ) {
return Integer.valueOf( index );
}
}