SocialDeckPresenter.java

package net.thesocialos.client.presenter;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import net.thesocialos.client.CacheLayer;
import net.thesocialos.client.api.FacebookAPI;
import net.thesocialos.client.api.TwitterAPI;
import net.thesocialos.shared.model.Columns;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasClickHandlers;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.TextArea;
import com.google.gwt.user.client.ui.Widget;
import com.googlecode.objectify.Key;

public class SocialDeckPresenter implements Presenter {
	
	TwitterAPI twitter = new TwitterAPI();
	FacebookAPI facebook = new FacebookAPI();
	
	public interface Display {
		Widget asWidget();
		
		HasWidgets getAllPostColumnsPanel();
		
		HasClickHandlers getPostButton();
		
		TextArea getTextField();
	}
	
	private final Display display;
	
	public SocialDeckPresenter(Display display) {
		this.display = display;
	}
	
	private void bind() {
		display.getPostButton().addClickHandler(new ClickHandler() {
			
			@Override
			public void onClick(ClickEvent event) {
				String postText = display.getTextField().getValue();
				// Tweet it
				twitter.post(postText);
				// Post it in Facebook
				facebook.post(postText);
				display.getTextField().setValue("");
			}
		});
	}
	
	@Override
	public void go(HasWidgets container) {
		container.add(display.asWidget());
		display.asWidget().setVisible(false);
		switchVisible();
		loadColumns();
		bind();
	}
	
	private void loadColumns() {
		Map<Key<Columns>, Columns> columns = CacheLayer.UserCalls.getColumns();
		Set<Columns> columnsSet = new HashSet<Columns>(columns.values());
		twitter.loadColumns(display, columnsSet);
	}
	
	public void switchVisible() {
		
		if (display.asWidget().isVisible()) {
			final int minus = display.asWidget().getOffsetHeight() / 20;
			new Timer() {
				
				@Override
				public void run() {
					int oldHeight = display.asWidget().getOffsetHeight();
					display.asWidget().setHeight(display.asWidget().getOffsetHeight() - minus + "px");
					if (display.asWidget().getOffsetHeight() <= 0 || oldHeight == display.asWidget().getOffsetHeight()) {
						display.asWidget().setHeight("0px");
						display.asWidget().setVisible(false);
						cancel();
					}
				}
			}.scheduleRepeating(10);
		} else {
			display.asWidget().setVisible(true);
			display.asWidget().setHeight("100%");
			final int max = display.asWidget().getOffsetHeight();
			final int plus = max / 20;
			display.asWidget().setHeight("0px");
			new Timer() {
				
				@Override
				public void run() {
					display.asWidget().setHeight(display.asWidget().getOffsetHeight() + plus + "px");
					if (display.asWidget().getOffsetHeight() >= max) {
						display.asWidget().setHeight("100%");
						cancel();
					}
				}
			}.scheduleRepeating(10);
		}
	}
}