FX

/* 
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. 
 * 
 * This file is available and licensed under the following license:
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice, 
 *     this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *
 *   * Neither the name of Sun Microsystems nor the names of its contributors 
 *     may be used to endorse or promote products derived from this software 
 *     without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package tweeter.view;

import javafx.data.feed.rss.Channel;
import javafx.data.feed.rss.Item;
import javafx.data.feed.rss.RssTask;
import javafx.scene.Group;
import javafx.scene.image.ImageView;
import javafx.scene.Node;
import javafx.scene.paint.Color;
import javafx.scene.shape.Line;
import javafx.scene.shape.Rectangle;
import tweeter.model.Status;
import tweeter.model.User;
import tweeter.view.AbstractView;
import tweeter.view.list.ListItem;
import tweeter.view.list.ListView;
import tweeter.view.TweeterView;

/**
 * @author Rakesh Menon
 */

public class PublicView extends AbstractView {

    public var onException: function(message : String) = null;
    
    override var show = true on replace {
        if(visible) {
            statusList.requestFocus();
        }
    };
    
    var statuses : Status[];
    
    var logo = ImageView {
        translateX: 10
        translateY: 13
        image: TweeterView.theme.logoImage
    };

    // Status List Items
    var statusListItem : ListItem[];
    var statusList = ListView {
        translateX: 5
        translateY: 57
        height: TweeterView.height - 95
        listItem: bind statusListItem
    };
    
    public function updateStatus(statuses : Status[]) : Void {

        delete statusListItem;
        
        var index = 0;
        for(status in statuses) {
            var listItem = ListItem {
                listView: statusList
            };
            listItem.setStatus(status);
            insert listItem into statusListItem;
            index++;
        };
    }

    var feedTask : RssTask;
    public function start() {
        
        if(feedTask.started) { return; }

        feedTask = RssTask {
            
            location: "http://twitter.com/statuses/public_timeline.rss"
            interval: 60s
            
            onChannel: function (channel : Channel):Void {
                delete statuses;
            }

            onItem: function(item : Item): Void {
                var title = "{item.title}";
                var index = title.indexOf(":");
                var user = title.substring(0, index);
                var message = title.substring(index + 1);
                insert Status {
                    text: message
                    user: User {
                        name: user
                    }
                } into statuses;
            }

            onException: function(ex) : Void {
                onException("{ex.getMessage()}");
            }
            
            onDone: function(): Void {
                updateStatus(statuses);
            }
        }
        feedTask.start();
    }

    override function create() : Node {

        var bgRect = Rectangle {
            x: 0
            y: 0
            width: TweeterView.width
            height: 55
            fill: Color.web("#DDEEF7")
        }
        
        var line = Line {
            startX: 2
            startY: 55
            endX: TweeterView.width - 4
            endY: 55
            stroke: bind Color.web("#{TweeterView.theme.linkColor}")
        };

        Group {
            content: bind [ statusList, bgRect, logo, line ]
        }
    }
}