Forum libero

Tipo questo

package com.tesi.client;


import com.google.gwt.user.client.HTTPRequest;
import com.google.gwt.user.client.ResponseTextHandler;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.MouseListener;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.xml.client.Document;
import com.google.gwt.xml.client.Element;
import com.google.gwt.xml.client.NodeList;
import com.google.gwt.xml.client.XMLParser;

public class EventDistinctItem implements ClickListener {
    
    private class PopupBox extends DialogBox implements ClickListener, MouseListener{
        
        private String eventName;
        private DockPanel contents = new DockPanel();
        private PopupDetails popupDetailsPanel;
        private PopupParticipant popupParticipantsPanel;
        private Button close;
        private Label details;
        private Label participants;
        public PopupBox (DockPanel innerPanel, VerticalPanel detailsPanel, String event) {
            
            eventName = event;
            setText("Drag to move popup panel.");
// DialogBox is a SimplePanel, so you have to set its widget property to
// whatever you want its contents to be.
            contents.add(innerPanel, DockPanel.NORTH);
            close = new Button("Close");
            close.addClickListener(this);
            contents.add(close, DockPanel.CENTER);        
            details = new Label("Details");
            details.addMouseListener(this);
            contents.add(details, DockPanel.WEST);
            participants = new Label("Participants");
            participants.addMouseListener(this);
            contents.add(participants, DockPanel.EAST);
            setWidget(contents);            
        }
        public void onClick(Widget sender) {
            
            if (sender == close) {
                PopupBox.this.hide();
            }
            
        }
        
        public void onMouseDown(Widget sender, int x, int y) {}
        
        public void onMouseEnter(Widget sender) {
            if (sender == details) {
                popupDetailsPanel = new PopupDetails(detailsPanel);
                popupDetailsPanel.center();
            }
            if (sender == participants) {
                popupParticipantsPanel = new PopupParticipant(eventName);
                popupParticipantsPanel.center();                
            }
        }
        
        public void onMouseLeave(Widget sender) {
            if (sender == details) {
                popupDetailsPanel.hide();
            }
            if (sender == participants) {
                popupParticipantsPanel.hide();
            }
        }
        
        public void onMouseMove(Widget sender, int x, int y) {}
        
        public void onMouseUp(Widget sender, int x, int y) {}
        
    }
    
    private class PopupDetails extends PopupPanel {
        
        public PopupDetails(VerticalPanel details) {
            
// PopupPanel's constructor takes 'auto-hide' as its boolean parameter.
// If this is set, the panel closes itself automatically when the user
// clicks outside of it.
            super(true);

// PopupPanel is a SimplePanel, so you have to set it's widget property to
// whatever you want its contents to be.
            
            setWidget(details);
        }
    }
    
    private class PopupParticipant extends PopupPanel {
        
        private static final String urlString = "http://localhost:8080/event_participant.php?";
        private String eventName;
        private VerticalPanel participantsPanel = new VerticalPanel();
        
        public PopupParticipant(String event) {        
            super(true);
            eventName = event;
            Entries queryData = new Entries("event", eventName);
            Entry[] queryString;
            queryString = new Entry[1];
            queryString[0] = queryData;
            String completeUrl = urlString + QueryData.buildQueryString(queryString);
            HTTPRequest.asyncGet(completeUrl, new ResponseTextHandler() {
                public void onCompletion(String response) {
                    renderXml(response);
                    setWidget(participantsPanel);                                
                }
            });                    
        }
        
        private void renderXml(String xmlData) {
            
            Label title = new Label("Participants:");
            participantsPanel.add(title);
            Document eventParticipantDom = XMLParser.parse(xmlData);
            Element eventParticipantElement = eventParticipantDom.getDocumentElement();
            XMLParser.removeWhitespace(eventParticipantElement);
            NodeList participants = eventParticipantElement.getElementsByTagName("participant");
            for (int i = 0; i < participants.getLength(); i++) {
                Element participant = (Element)participants.item(i);
                String participantText = participant.getFirstChild().getNodeValue();
                Label participantLabel = new Label(participantText);
                participantsPanel.add(participantLabel);
            }
            participantsPanel.addStyleName("PopupDetails");
        }
    }
    
    private boolean EventFlag;
    private Element distinctItem;
    private String shortname;
    private String fullname;
    private String location;
    private String description;
    private String link;
    private String beginningDate;
    private String endingDate;
    private VerticalPanel abstractPanel = new VerticalPanel();
    private DockPanel detailPanel = new DockPanel();
    private VerticalPanel detailsPanel = new VerticalPanel();
    private HTML spacer = new HTML("<br />");
    private Label title;
    
    public EventDistinctItem (Element item) {
        
        distinctItem = item;
        renderXmlItem();        
        if (EventFlag)
        {   setDistinctItemAbstractTrue();
            setDistinctItemDetailed();
            setDetails();
        }
        else {
            setDistinctItemAbstractFalse();
        }
    }
    
    private void renderXmlItem() {
        shortname = distinctItem.getAttribute("shortname");
        if (shortname.equals("None"))
        {
            EventFlag = false;
        }
        else
        {
            EventFlag = true;
            fullname = getFullname();
            location = getLocation();
            description = getDescription();
            link = getLink();
            beginningDate = getBeginningDate();
            endingDate = getEndingDate();
        }        
    }
    
    private void setDistinctItemAbstractTrue() {
        
            title = new Label(shortname);
            title.setStyleName("ActivityItem-TitleArea");
            title.addClickListener(this);
            abstractPanel.add(title);
            HTML longTitle = new HTML(fullname);
            longTitle.setStyleName("ActivityItem-Text");
            abstractPanel.add(longTitle);    
            abstractPanel.add(spacer);
    }
    
    private void setDistinctItemAbstractFalse() {
        Label noData = new Label("No Data Available");
        abstractPanel.add(noData);
    }
    
    private void setDistinctItemDetailed() {
        
        VerticalPanel headerPanel = new VerticalPanel();
        Label title = new Label(shortname);
        title.setStyleName("DialogBox-TitleArea");
        headerPanel.add(title);
        HTML longTitle = new HTML(fullname);
        longTitle.setStyleName("DialogBox-Text");
        headerPanel.add(longTitle);
        detailPanel.add(headerPanel, DockPanel.NORTH);
        HTML event_description = new HTML(description);
        event_description.setStyleName("DialogBox-Text");