package project.test
{
  import flash.display.*;
  import flash.geom.Rectangle;
  import flash.net.*;
  import flash.text.*;
  import flash.filters.*;
  import flash.events.*;
  import flash.system.Security;
  
  import fl.controls.Button;
  import fl.controls.ProgressBar;
  import fl.controls.ProgressBarMode;
  
  /**
   * @link kinglong@gmail.com
   * @author Kinglong
   * @playerversion fp10  
   */
  [SWF(width="500", height="300", frameRate="24", backgroundColor="#FFFFFF")]
  public class TestUpload extends Sprite {
    
    private const DEFAULT_UPLOAD_PAGE:String = "http://test.klstudio.com/upload.asp";    
    private const BOX_WIDTH:uint = 500;
    private const BOX_HEIGHT:uint = 300;
    
    private const STATE_CACHE:String = "cache";
    private const STATE_UPLOAD:String = "upload";
    
    private var _filters:Array;
    private var _file:FileReference;
    private var _loader:Loader;
    private var _progress:ProgressBar;
    private var _state:String;
    private var _buttons:Array;
    private var _labels:Array;
    private var _txts:Array;
    private var _rect:Rectangle;
    private var _state_txt:TextField;
    
    public function TestUpload() {
      Security.allowDomain("*");
      
      _buttons = [];
      _txts = [];
      _labels = ["文件名称:","文件类型:","文件大小:","修改时间:"];
      
      _rect = new Rectangle(20, 80, 180, 180);
      _state = STATE_CACHE;
      
      //背景;
      this.graphics.beginFill(0x333333);
      this.graphics.drawRoundRect(0, 0, BOX_WIDTH, BOX_HEIGHT, 10, 10);
      this.graphics.endFill();
      this.graphics.beginFill(0xEFEFEF);
      this.graphics.drawRoundRect(1, 1, BOX_WIDTH - 2, BOX_HEIGHT - 2, 10, 10);
      this.graphics.endFill();
      this.graphics.beginFill(0x666666);
      this.graphics.drawRoundRect(10, 30, BOX_WIDTH - 20, BOX_HEIGHT - 60, 20, 20);      
      this.graphics.endFill();
      this.graphics.beginFill(0xFEFEFE);
      this.graphics.drawRoundRect(11, 31, BOX_WIDTH - 22, BOX_HEIGHT - 62, 20, 20);
      this.graphics.endFill();
      
      this.graphics.beginFill(0xCCCCCC);
      this.graphics.drawRect(11, 70, BOX_WIDTH - 22, 1);
      this.graphics.endFill();
      
      this.graphics.beginFill(0x000000);
      this.graphics.drawRect(_rect.x-1, _rect.y-1, _rect.width+2, _rect.height+2);
      this.graphics.endFill();      
      this.graphics.beginFill(0xEEEEEE);
      this.graphics.drawRect(_rect.x, _rect.y, _rect.width, _rect.height);
      this.graphics.endFill();
      
      
      //标题;
      var label:TextField;      
      label = getLabel("图片上传（预览图片版） by Kinglong", getTextFormat(0xFFFFFF, 14, true));
      label.x = 10;
      label.y = 5;
      label.filters = [getLabelFilter(0x000000)];
      this.addChild(label);
      
      for (var i:uint = 0; i < _labels.length; i++ ) {      
        label = getLabel(_labels[i], getTextFormat(0x333333, 12), false, false);        
        label.x = _rect.right+5;
        label.y = _rect.y + 25 * i;
        label.width = 280;
        label.height = 20;
        _txts.push(label);
        this.addChild(label);
      }      
      
      _state_txt = getLabel("状态:", getTextFormat(0x333333, 12));
      _state_txt.x = 10;
      _state_txt.y = BOX_HEIGHT - _state_txt.height - 5;
      this.addChild(_state_txt);
      
      //按钮;
      var button:Button;
      button = getButton("选择文件", 80);      
      button.move(20, 40);
      
      button = getButton("上传文件", 80);      
      button.move(105, 40);
      button.enabled = false;
      
      //进度条;
      _progress = new ProgressBar();
      _progress.move(190, 40);
      _progress.setSize(290,22);
      _progress.mode = ProgressBarMode.MANUAL;            
      this.addChild(_progress);
      
      //文件类型;
      _filters = [];
      var filter:FileFilter;      
      filter = new FileFilter("所有支持图片文件(*.jpg,*.jpeg,*.gif,*.png)", "*.jpg;*.jpeg;*.gif;*.png");
      _filters[_filters.length] = filter;
      filter = new FileFilter("JPEG files(*.jpg,*.jpeg)","*.jpg;*.jpeg");
      _filters[_filters.length] = filter;
      filter = new FileFilter("GIF files (*.gif)","*.gif");
      _filters[_filters.length] = filter;
      filter = new FileFilter("PNG files(*.png)","*.png");
      _filters[_filters.length] = filter;  
      
      _file = new FileReference();
      _file.addEventListener(Event.COMPLETE, fileHandler);
      _file.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA, fileHandler);
      _file.addEventListener(Event.SELECT, fileHandler);
      _file.addEventListener(Event.OPEN, fileHandler);      
      _file.addEventListener(ProgressEvent.PROGRESS, fileHandler);
      _file.addEventListener(SecurityErrorEvent.SECURITY_ERROR, fileHandler);
      _file.addEventListener(IOErrorEvent.IO_ERROR, fileHandler);
      _file.addEventListener(HTTPStatusEvent.HTTP_STATUS, fileHandler);
      
      _loader = new Loader();
      _loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadHandler);
      this.addChild(_loader);
    }
    
    public function get state():String {
      return _state;
    }
    
    private function clickHandler(event:MouseEvent):void {
      switch(event.target) {
        case _buttons[0]:
          _file.browse(_filters);
          break;
        case _buttons[1]:
          _file.upload(new URLRequest(DEFAULT_UPLOAD_PAGE));
          _state = STATE_UPLOAD;          
          _buttons[0].enabled = false;
          _buttons[1].enabled = false;
          break;
      }
    }
    
    private function loadHandler(event:Event):void {
      _loader.scaleX = _loader.scaleY = 1;
      var w:uint = _loader.width;
      var h:uint = _loader.height;
      if (w > _rect.width || h > _rect.height) {        
        var ip:Number = w / h;
        var lp:Number = _rect.width / _rect.height;      
        _loader.width = (ip > lp)?_rect.width:_rect.height*ip;
        _loader.height = (ip > lp)?_rect.width / ip:_rect.height;
      }
      _loader.x = _rect.x + (_rect.width - _loader.width) / 2;
      _loader.y = _rect.y + (_rect.height - _loader.height) / 2;      
      _loader.visible = true;
    }
    
    private function fileHandler(event:Event):void {
      switch(event.type) {
        case Event.COMPLETE:
          if(state == STATE_CACHE){
            _loader.loadBytes(_file.data);
          }
          break;
        case DataEvent.UPLOAD_COMPLETE_DATA:
          debug("图片上传完成!");
          _buttons[0].enabled = true;
          _buttons[1].enabled = false;
          _progress.setProgress(0, 1);
          break;
        case Event.SELECT:
          _txts[0].text = _labels[0] + _file.name;
          _txts[1].text = _labels[1] + _file.type;
          _txts[2].text = _labels[2] + ((_file.size > 1024 * 1024)?Math.round(_file.size * 10 / (1024*1024))/10 + "MB":Math.round(_file.size * 10 / 1024)/10 + "KB");          
          _txts[3].text = _labels[3] + date2str(_file.modificationDate);
          _buttons[0].enabled = true;
          _buttons[1].enabled = true;
          _file.load();
          _state = STATE_CACHE;
          _loader.visible = false;
          debug("图片已经准备!");
          break;
        case Event.OPEN:
          if(state == STATE_UPLOAD){
            debug("正在上传图片...");
          }
          break;
        case ProgressEvent.PROGRESS:
          if (state == STATE_UPLOAD) {
            var pEvent:ProgressEvent = event as ProgressEvent;
            _progress.setProgress(pEvent.bytesLoaded, pEvent.bytesTotal);
          }
          break;
        case SecurityErrorEvent.SECURITY_ERROR:
        case IOErrorEvent.IO_ERROR:
        case HTTPStatusEvent.HTTP_STATUS:          
          if (state == STATE_UPLOAD) {
            debug("图片上传失败!");
            _buttons[0].enabled = true;
            _buttons[1].enabled = true;
          }else {
            debug("图片缓冲失败!");
          }
          _progress.setProgress(0, 1);
          break;
        
      }
    }
    
    private function getButton(lbl:String,width:uint=120):Button {
      var button:Button = new Button();
      button.label = lbl;
      button.setSize(width, 22);  
      button.setStyle("textFormat", getTextFormat());
      button.setStyle("disabledTextFormat", getTextFormat(0x999999));
      button.setStyle("textPadding",4);
      button.addEventListener(MouseEvent.CLICK, clickHandler);      
      this.addChild(button);
      _buttons.push(button);
      return button;
    }
    
    private function getLabel(label:String, format:TextFormat, selectable:Boolean = false, autoSize:Boolean = true):TextField {      
      var lbl:TextField = new TextField();
      lbl.selectable = selectable;
      lbl.defaultTextFormat = format;
      if(autoSize){
        lbl.autoSize = TextFieldAutoSize.LEFT;
      }
      lbl.text = label;
      return lbl;
    }
    
    private function getTextFormat(color:uint=0x000000,size:uint = 12,bold:Boolean=false):TextFormat {
      var format:TextFormat = new TextFormat();
      format.font = "宋体";
      format.color = color;
      format.size = size;
      format.bold = bold;
      return format;
    }
    
    private function getLabelFilter(color:uint=0xFFFFFF):BitmapFilter {
 var alpha:Number = 0.8;
 var blurX:Number = 2;
 var blurY:Number = 2;
 var strength:Number = 3;
 var inner:Boolean = false;
 var knockout:Boolean = false;
 var quality:Number = BitmapFilterQuality.HIGH;

 return new GlowFilter(color,
 alpha,
 blurX,
 blurY,
 strength,
 quality,
 inner,
 knockout);
    }
    
    private function date2str(day:Date):String {
      var str:String = day.getFullYear() + "-";
      str += num2str(day.getMonth() + 1) + "-";
      str += num2str(day.getDate()) + " ";
      str += num2str(day.getHours()) + ":";
      str += num2str(day.getMinutes()) + ":";
      str += num2str(day.getSeconds());
      return str;
    }
    
    private function num2str(val:Number):String {
      var str:String = "00" + val;
      return str.substr(str.length - 2, 2);      
    }
    
    private function debug(message:String):void {
      _state_txt.text = message;
    }
    
  }
  
}