License text 

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER 
 * Copyright  2008, 2010 Oracle and/or its affiliates.  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 Oracle Corporation 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 ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (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 rssviewer;

import javafx.animation.Timeline;
import javafx.animation.KeyFrame;
import javafx.animation.Interpolator;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.io.http.HttpRequest;
import javafx.io.http.HttpHeader;

import rssviewer.model.Channel;
import rssviewer.model.Item;
import rssviewer.parser.RSSPullParser;
import rssviewer.view.ControlPanel;
import rssviewer.view.RSSViewer;

import java.lang.Exception;
import java.lang.Class;
import java.applet.Applet;

var channel:Channel[];
var stageX = 280.0;
var stageY = 140.0;
var stageDragInitialX:Number;
var stageDragInitialY:Number;
// Is running as Applet?
public var inBrowser = "true".equals(FX.getArgument("isApplet") as String);
public var jsMode = "true".equals(FX.getArgument("js_mode") as String);
 
var rssViewer = RSSViewer { };
var controlPanel = ControlPanel { };

public function loadChannel(rssURL:String) {
    println("Loading RSS Data...");   
    println("URL: {rssURL}");
    
    delete channel;
    var httpRequestError:Boolean = false;
        // Submit HttpRequest    
    var request:HttpRequest = HttpRequest {
        location: rssURL
        method: HttpRequest.GET
        onException:function(exception:Exception) {
            exception.printStackTrace();
        }
        onResponseCode:function(responseCode:Integer) {
            if (responseCode != 200) {
                println("failed, response: {responseCode} {request.responseMessage}");
            }
        }
        onInput:function(input:java.io.InputStream) {
            try {
                var parser = RSSPullParser{};
                channel = parser.parse(input);                
            } finally {
                input.close();
            }
        }
        onDone:function() { 
           if((sizeof channel) > 0) {
               println("Channel {channel[ 0 ]}");
               if(inBrowser) {
                   showTableData();
                } else {
                    rssViewer.channel = channel[ 0 ];
                }
            }
        }
    }
    
    request.setHeader(HttpHeader.USER_AGENT, "Mozilla/4.0");
    request.start();
}

public function showTableData() {
    setChannelData("{channel[0].getTableData()}");
}

public function showNextItem() {
    setChannelData("{channel[0].getNextTableData()}");
}

public function showPrevItem() {
    setChannelData("{channel[0].getPrevTableData()}");
}

public function run() {

    if(inBrowser and jsMode) { 
        
        var stage = Stage {
            x:0
            y: 0
            title: "RSS Viewer"
            scene: Scene { content: [ controlPanel ] }
            height: 80
        }
        
    } else {

        // Drag Bar
        var dragBar:Rectangle = Rectangle {
            width: 240
            height: 50
            fill: Color.TRANSPARENT
            visible: bind (not inBrowser)
            onMousePressed:function(e) {
                stageDragInitialX = e.screenX - stage.x;
                stageDragInitialY = e.screenY - stage.y;
            }
             onMouseDragged:function(e) {
                stage.x = e.screenX - stageDragInitialX;
                stage.y = e.screenY - stageDragInitialY;
             }
        }
        
        var stage:Stage = Stage {
            title: "RSS Viewer"
            scene:Scene { 
                content: [ rssViewer, dragBar ] 
                fill: Color.TRANSPARENT
            }
            x: bind stageX with inverse
            y: bind stageY with inverse
            style: StageStyle.TRANSPARENT
        }        
    }
    
    var url = FX.getArgument("rss_url");
    if(url == null) { url = "http://rss.news.yahoo.com/rss/world"; }
    loadChannel(url.toString());
}

/*******************************************************************
 * JavaFX Script <-> JavaScript Interaction [Only for Browser]
 *******************************************************************/

public function setChannelData(tableData:String) {
    if(not jsMode) { return; }    
    
    try {
        
        // Get the Applet instance
        var applet:Applet = FX.getArgument("javafx.applet") as Applet;
        var window = netscape.javascript.JSObject.getWindow(applet);
        window.call("updateChannelData", [ "{ tableData }" ]);
    } catch (e:java.lang.Exception) {
        println("Exception thrown while trying to invoke JavaScript methods!");
        e.printStackTrace();
    }
}