com.pronoiahealth.olhie.client.pages.bulletinboard.BulletinboardPage.java Source code

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Here is the source code for com.pronoiahealth.olhie.client.pages.bulletinboard.BulletinboardPage.java

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/*******************************************************************************
 * Copyright (c) 2013 Pronoia Health LLC.
 * 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:
 *     Pronoia Health LLC - initial API and implementation
 *******************************************************************************/
package com.pronoiahealth.olhie.client.pages.bulletinboard;

import static com.google.gwt.query.client.GQuery.$;
import gwtquery.plugins.draggable.client.DraggableOptions;
import gwtquery.plugins.draggable.client.DraggableOptions.HelperType;
import gwtquery.plugins.draggable.client.DraggableOptions.RevertOption;
import gwtquery.plugins.draggable.client.events.BeforeDragStartEvent;
import gwtquery.plugins.draggable.client.events.BeforeDragStartEvent.BeforeDragStartEventHandler;
import gwtquery.plugins.draggable.client.events.DragStartEvent;
import gwtquery.plugins.draggable.client.events.DragStartEvent.DragStartEventHandler;
import gwtquery.plugins.draggable.client.events.DragStopEvent;
import gwtquery.plugins.draggable.client.events.DragStopEvent.DragStopEventHandler;
import gwtquery.plugins.draggable.client.gwt.DraggableWidget;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.jboss.errai.ui.nav.client.local.DefaultPage;
import org.jboss.errai.ui.nav.client.local.Page;
import org.jboss.errai.ui.nav.client.local.PageShowing;
import org.jboss.errai.ui.shared.api.annotations.DataField;
import org.jboss.errai.ui.shared.api.annotations.Templated;

import com.google.gwt.dom.client.Style.Cursor;
import com.google.gwt.query.client.GQuery;
import com.google.gwt.user.client.ui.Widget;
import com.pronoiahealth.olhie.client.pages.AbstractPage;
import com.pronoiahealth.olhie.client.pages.AppSelectors;
import com.pronoiahealth.olhie.client.pages.bulletinboard.widgets.CarouselSliderWidget;
import com.pronoiahealth.olhie.client.pages.bulletinboard.widgets.CurrentStatusWidget;
import com.pronoiahealth.olhie.client.pages.bulletinboard.widgets.HelpVideoWidget;
import com.pronoiahealth.olhie.client.widgets.dnd.DroppablePanel;

/**
 * BulletinboardPage.java<br/>
 * Responsibilities:<br/>
 * 1. Serves as default page in Errai Navigation system<br/>
 * 
 * @author John DeStefano
 * @version 1.0
 * @since May 26, 2013
 * 
 */
@Templated("#root")
@Page(role = { DefaultPage.class })
public class BulletinboardPage extends AbstractPage {

    @Inject
    @DataField("col1")
    private DroppablePanel col1;

    @Inject
    @DataField("col2")
    private DroppablePanel col2;

    @Inject
    private CurrentStatusWidget statusWidget;

    @Inject
    private CarouselSliderWidget carouselWidget;

    @Inject
    private HelpVideoWidget helpVideoWidget;

    /**
     * Constructor
     * 
     */
    public BulletinboardPage() {
    }

    /**
     * Inject the custom resources
     */
    @PostConstruct
    private void postConstruct() {
        createAddDraggableWidgetToDroppablePanel(col1, statusWidget, ".draggableWidget");
        createAddDraggableWidgetToDroppablePanel(col1, carouselWidget, ".draggableWidget");
        createAddDraggableWidgetToDroppablePanel(col2, helpVideoWidget, ".draggableWidget");
    }

    private void createAddDraggableWidgetToDroppablePanel(DroppablePanel panel, Widget w, String acceptClass) {

        // Set a filter on what types of widgets this panel will accept
        panel.setAccept(acceptClass);

        // Create the draggable widget
        DraggableWidget<Widget> dw = new DraggableWidget<Widget>(w);

        // Before drag start
        dw.addBeforeDragHandler(new BeforeDragStartEventHandler() {
            @Override
            public void onBeforeDragStart(BeforeDragStartEvent event) {
                $(event.getDraggable()).css("position", "absolute");
            }
        });

        // Drag start handler to dynamically adjust the size of the
        // droppable panel widgets on the page. Without this you can't
        // drag from column to column
        dw.addDragStartHandler(new DragStartEventHandler() {
            @Override
            public void onDragStart(DragStartEvent event) {
                int content = AppSelectors.INSTANCE.getCenterBackground().height();
                GQuery droppables = AppSelectors.INSTANCE.getAllDroppableWidgets();
                droppables.height(content);
            }
        });

        // On drag stop
        dw.addDragStopHandler(new DragStopEventHandler() {
            @Override
            public void onDragStop(DragStopEvent event) {
                $(event.getDraggable()).css("position", "relative").css("top", null).css("left", null);
            }
        });

        // Can't create and re-use
        // Must have unique set for application to each widget
        DraggableOptions dragOptions = new DraggableOptions();
        dragOptions.setOpacity(new Float(0.8));
        dragOptions.setZIndex(2000);
        dragOptions.setCursor(Cursor.MOVE);
        dragOptions.setRevert(RevertOption.NEVER);
        dragOptions.setRevertDuration(500);
        dragOptions.setHelper(HelperType.CLONE);

        // Set drag options
        dw.setDraggableOptions(dragOptions);

        // Add to column
        panel.addWidget(dw);
    }

    @PageShowing
    protected void onPageShowing() {
        // Set the background which will make the containing div overflow
        setPageBackgroundClass("ph-BulletinBoard-Background");
    }

    /**
     * Set-up<br/>
     * 1. Screen back ground<br/>
     * 2. Scroll to top <br/>
     * 
     * @see com.google.gwt.user.client.ui.Widget#onLoad()
     */
    @Override
    protected void onLoad() {
        super.onLoad();

        // Bind to the root div of this page
        addFullPageScrolling();
    }
}