// Constructor
// file is a SWFUpload file object
// targetID is the HTML element id attribute that the FileProgress HTML structure will be added to.
// Instantiating a new FileProgress object with an existing file will reuse/update the existing DOM elements
function FileProgress(file, targetID) {
	this.fileProgressID = file.id;

	this.opacity = 100;
	this.height = 0;

	this.fileProgressWrapper = document.getElementById(this.fileProgressID);
	if (!this.fileProgressWrapper) {
		this.fileProgressWrapper = document.createElement("div");
		this.fileProgressWrapper.className = "progressWrapper";
		this.fileProgressWrapper.id = this.fileProgressID;

		this.fileProgressElement = document.createElement("div");
		this.fileProgressElement.className = "progressContainer";
      
		var progressImage = document.createElement('div');
		progressImage.className = "progressImage new";
		progressImage.style.backgroundImage = 'url(/skin_image/default/en/waiting.gif)';
		
		// push to the allimages-list
		allimages.push( progressImage );
		
		var progressCancel = document.createElement("a");
		progressCancel.className = "progressCancel";
		progressCancel.href = "#";
		// progressCancel.style.visibility = "hidden";
		progressCancel.appendChild(document.createTextNode("X"));
      
		var progressText = document.createElement("div");
		progressText.className = "progressName";
		progressText.appendChild(document.createTextNode(file.name));
      
		var progressBarContainer = document.createElement("div");
		progressBarContainer.className = "progressBarContainer";
      
		var progressBar = document.createElement("div");
		progressBar.className = "progressBarInProgress";
      
		var progressStatus = document.createElement("div");
		progressStatus.className = "progressBarStatus";
		progressStatus.innerHTML = " ";
      
		this.fileProgressElement.appendChild(progressCancel);
		this.fileProgressElement.appendChild(progressText);
		this.fileProgressElement.appendChild(progressStatus);
		this.fileProgressElement.appendChild(progressBarContainer);
      progressBarContainer.appendChild(progressBar);
      this.fileProgressElement.appendChild(progressImage);
		
		this.fileProgressWrapper.appendChild(this.fileProgressElement);

		document.getElementById(targetID).appendChild(this.fileProgressWrapper);
	} else {
		this.fileProgressElement = this.fileProgressWrapper.firstChild;
	}

	this.height = this.fileProgressWrapper.offsetHeight;

}

FileProgress.prototype.setProgress = function (percentage) {
	
   this.fileProgressElement.className = "progressContainer blue";
	this.fileProgressElement.childNodes[3].childNodes[0].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[3].childNodes[0].style.width = percentage + "px";
	
};

FileProgress.prototype.setComplete = function () {
	
   this.fileProgressElement.className = "progressContainer green";
	this.fileProgressElement.childNodes[3].childNodes[0].className = "progressBarComplete";
	this.fileProgressElement.childNodes[3].childNodes[0].style.width = "";
   
	/*
	alert( currentplaceholder );

	// move to the end
	var parent = this.fileProgressWrapper.parentNode;
	parent.replaceChild( this.fileProgressWrapper, currentplaceholder );
	
	// move to the end
	var parent = this.fileProgressWrapper.parentNode;
	parent.replaceChild( this.fileProgressWrapper, this.bufferItem );
	var oSelf = this;
	setTimeout(function () {
		oSelf.disappear();
	}, 10000);
	*/
	
};

FileProgress.prototype.setError = function () {
   
   this.fileProgressElement.className = "progressContainer red";
	this.fileProgressElement.childNodes[3].childNodes[0].className = "progressBarError";
	this.fileProgressElement.childNodes[3].childNodes[0].style.width = "";

	/*
	// move to the end
	var parent = this.fileProgressWrapper.parentNode;
	parent.replaceChild( this.fileProgressWrapper, this.bufferItem );
	var oSelf = this;
	setTimeout(function () {
		oSelf.disappear();
	}, 5000);
	*/
	
};

FileProgress.prototype.setCancelled = function () {
   
   this.fileProgressElement.className = "progressContainer";
	this.fileProgressElement.childNodes[3].childNodes[0].className = "progressBarError";
	this.fileProgressElement.childNodes[3].childNodes[0].style.width = "";

	/*
	// move to the end
	var parent = this.fileProgressWrapper.parentNode;
	parent.replaceChild( this.fileProgressWrapper, currentplaceholder );
	var oSelf = this;
	setTimeout(function () {
		oSelf.disappear();
	}, 2000);
	*/
	
};

FileProgress.prototype.setStatus = function (status) {
   
	this.fileProgressElement.childNodes[2].innerHTML = status;
	
};

// Creates a BufferElement
FileProgress.prototype.createBufferElement = function(file) {
   
   /*
   this.fileProgressID = file.id;
   this.fileProgressWrapper = document.getElementById(this.fileProgressID);
	
   if( this.fileProgressWrapper ) {
      
      currentplaceholder = document.createElement('div');
      
      var parent = this.fileProgressWrapper.parentNode;
   	parent.replaceChild( currentplaceholder, this.fileProgressWrapper );
   	
   	if( parent.children.length > 0 ) {
   	   
   	   parent.insertBefore( this.fileProgressWrapper, parent.firstNode );
   	   
   	} else {
   	   
   	   parent.appendChild( this.fileProgressWrapper );
   	   
   	}
   	
   }
   */
   
}
		
// Show/Hide the cancel button
FileProgress.prototype.toggleCancel = function (show, swfUploadInstance) {
	this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
	if (swfUploadInstance) {
		var fileID = this.fileProgressID;
		this.fileProgressElement.childNodes[0].onclick = function () {
			swfUploadInstance.cancelUpload(fileID);
			return false;
		};
	}
};

// Fades out and clips away the FileProgress box.
FileProgress.prototype.disappear = function () {

	var reduceOpacityBy = 15;
	var reduceHeightBy = 4;
	var rate = 30;	// 15 fps

	if (this.opacity > 0) {
		this.opacity -= reduceOpacityBy;
		if (this.opacity < 0) {
			this.opacity = 0;
		}

		if (this.fileProgressWrapper.filters) {
			try {
				this.fileProgressWrapper.filters.item("DXImageTransform.Microsoft.Alpha").opacity = this.opacity;
			} catch (e) {
				// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
				this.fileProgressWrapper.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + this.opacity + ")";
			}
		} else {
			this.fileProgressWrapper.style.opacity = this.opacity / 100;
		}
	}
   
	if (this.height > 0) {
		this.height -= reduceHeightBy;
		if (this.height < 0) {
			this.height = 0;
		}

		this.fileProgressWrapper.style.height = this.height + "px";
	}

	if (this.height > 0 || this.opacity > 0) {
		var oSelf = this;
		setTimeout(function () {
			oSelf.disappear();
		}, rate);
	} else {
		this.fileProgressWrapper.style.display = "none";
	}
};