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package org.ioc.commons.impl.android.ui;

import org.ioc.commons.ui.HasEnabled;
import org.ioc.commons.ui.HasStorage;

import android.view.MenuItem;
import android.view.View;

public class HasEnabledWrapper implements HasEnabled {

	private final View wrappedView;
	private final MenuItem wrappedMenu;

	private HasEnabledWrapper(View wrapped) {
		this.wrappedView = wrapped;
		this.wrappedMenu = null;
	}

	private HasEnabledWrapper(MenuItem wrapped) {
		this.wrappedView = null;
		this.wrappedMenu = wrapped;
	}

	@Override
	public void setEnabled(boolean enabled) {
		if (this.wrappedView != null) {
			this.wrappedView.setEnabled(enabled);
		} else {
			this.wrappedMenu.setEnabled(enabled);
		}
	}

	@Override
	public boolean isEnabled() {
		return this.wrappedView != null ? this.wrappedView.isEnabled() : this.wrappedMenu.isEnabled();
	}

	/**
	 * Gets a wrapper for a {@link View}
	 * 
	 * @param view
	 * 
	 * @return HasEnabled wrapper
	 */
	public static HasEnabled from(View view) {
		return new HasEnabledWrapper(view);
	}

	public static HasEnabled from(View view, HasStorage cache) {
		Object cached = cache.retrieve(view);
		HasEnabled hasEnabled = (cached instanceof HasEnabled) ? (HasEnabled) cached : null;
		if (hasEnabled == null) {
			hasEnabled = new HasEnabledWrapper(view);
			cache.store(view, hasEnabled);
		}
		return hasEnabled;

	}

	/**
	 * Helpful method for setting an enabled property on several components at
	 * the same time.
	 * 
	 * @param enabled
	 * @param viewArray
	 */
	public static void setEnabled(boolean enabled, View... viewArray) {
		if (viewArray != null) {
			for (View view : viewArray) {
				view.setEnabled(enabled);
			}
		}

	}

	/**
	 * Gets a wrapper for a {@link MenuItem}
	 * 
	 * @param view
	 * 
	 * @return HasEnabled wrapper
	 */
	public static HasEnabled from(MenuItem menu) {
		return new HasEnabledWrapper(menu);
	}

	public static HasEnabled from(MenuItem menu, HasStorage cache) {
		Object cached = cache.retrieve(menu);
		HasEnabled hasEnabled = (cached instanceof HasEnabled) ? (HasEnabled) cached : null;
		if (hasEnabled == null) {
			hasEnabled = new HasEnabledWrapper(menu);
			cache.store(menu, hasEnabled);
		}
		return hasEnabled;

	}

	/**
	 * Helpful method for setting an enabled property on several components at
	 * the same time.
	 * 
	 * @param enabled
	 * @param menuArray
	 */
	public static void setEnabled(boolean enabled, MenuItem... menuArray) {
		if (menuArray != null) {
			for (MenuItem menu : menuArray) {
				if (menu != null) {
					menu.setEnabled(enabled);
				}
			}
		}

	}

}