/**********/
var swfu;
function initSwfu_default() {

	swfu = new SWFUpload({
		// Backend Settings
		upload_url: "/js/swfupload/upload.aspx",	// Relative to the SWF file
		post_params: {"action": "upload"},

		// File Upload Settings
		file_size_limit : "2048",	// 2MB
		file_types : "*.pdf;*.doc;*.docx;*.xls;*.xlsx;*.txt;*.rtf;*.jpg;*.jpeg;*.tif;*.gif;*.png",
		file_types_description : "Documents et images",
		file_upload_limit : "0",

		// Event Handler Settings - these functions as defined in Handlers.js
		file_queue_error_handler : fileQueueError,
		file_dialog_complete_handler : fileDialogComplete,
		upload_progress_handler : uploadProgress,
		upload_error_handler : uploadError,
		upload_success_handler : uploadSuccess,
		upload_complete_handler : uploadComplete,

		// Flash Settings
		flash_url : "/js/swfupload/swfupload.swf",	// Relative to this file
				
		// Button Settings
		button_placeholder_id : "btn_swfu_browse",
		button_image_url : "/js/swfupload/gif/joindrefichier.png",
		button_width : 200,
		button_height : 22,
		button_action : SWFUpload.BUTTON_ACTION.SELECT_FILES,
		button_disabled : false,
		button_cursor : SWFUpload.CURSOR.HAND,
		button_window_mode : SWFUpload.WINDOW_MODE.TRANSPARENT,

		custom_settings : {
			upload_target : "div_swfu_progress_container"
		},
		
		// Debug Settings
		debug: false
	});

};
/**********/

function fileQueueError(fileObj, error_code, message) {
	try {
		var error_name = "";
		switch(error_code) {
			case SWFUpload.ERROR_CODE_QUEUE_LIMIT_EXCEEDED:
				error_name = "You have attempted to queue too many files.";
			break;
		}

		if (error_name !== "") {
			alert(error_name);
			return;
		}

		switch(error_code) {
			case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
				image_name = "zerobyte.gif";
			break;
			case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
				image_name = "toobig.gif";
			break;
			case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			default:
				alert(message);
				image_name = "error.gif";
			break;
		}

		AddImage("/js/swfupload/gif/" + image_name);

	} catch (ex) { this.debug(ex); }

}

function fileDialogComplete(num_files_queued) {
	try {
		if (num_files_queued > 0) {
			document.getElementById("div_swfu_progress_container").style.display = "block";
			this.startUpload();
		}
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadProgress(fileObj, bytesLoaded) {

	try {
		var percent = Math.ceil((bytesLoaded / fileObj.size) * 100)

		var progress = new FileProgress(fileObj,  this.customSettings.upload_target);
		progress.SetProgress(percent);
		if (percent === 100) {
			progress.SetStatus("Enregistrement du fichier...");
			progress.ToggleCancel(false);
			progress.ToggleCancel(true, this, fileObj.id);
		} else {
			progress.SetStatus("Envoi du fichier...");
			progress.ToggleCancel(true, this, fileObj.id);
		}
	} catch (ex) { this.debug(ex); }
}

function uploadSuccess(fileObj, server_data) {
	try {
		// upload.php returns the thumbnail id in the server_data, use that to retrieve the thumbnail for display
		//alert(server_data);
		//AddImage("thumbnail.php?id=" + server_data);

		var progress = new FileProgress(fileObj,  this.customSettings.upload_target);

		progress.SetStatus("Image miniature crée.");
		progress.ToggleCancel(false);
		
		document.getElementById('frm_swfufile').value = server_data;


	} catch (ex) { this.debug(ex); document.getElementById('frm_swfufile').value=''; }
}

function uploadComplete(fileObj) {
	try {
		/*  I want the next upload to continue automatically so I'll call startUpload here */
		if (this.getStats().files_queued > 0) {
			this.startUpload();
		} else {
			var progress = new FileProgress(fileObj,  this.customSettings.upload_target);
			progress.SetComplete();
			progress.SetStatus("Fichier(s) transféré(s) avec succès.");
			progress.ToggleCancel(false);
			document.getElementById("div_swfu_container").style.display = "none";
			document.getElementById("div_swfu_reponse").style.display = "none";
		}
	} catch (ex) { this.debug(ex); }
}

function uploadError(fileObj, error_code, message) {
	var image_name =  "error.gif";
	try {
		switch(error_code) {
			case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
				try {
					var progress = new FileProgress(fileObj,  this.customSettings.upload_target);
					progress.SetCancelled();
					progress.SetStatus("Stopped");
					progress.ToggleCancel(true, this, fileObj.id);
				}
				catch (ex) { this.debug(ex); }
			case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
				image_name = "uploadlimit.gif";
			break;
			default:
				alert(message);
			break;
		}

		AddImage("/js/swfupload/gif/" + image_name);

	} catch (ex) { this.debug(ex); }

}


/* ******************************************
 *	FileProgress Object
 *	Control object for displaying file info
 * ****************************************** */

function FileProgress(fileObj, target_id) {
	this.file_progress_id = "divFileProgress";

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

		this.fileProgressElement = document.createElement("div");
		this.fileProgressElement.className = "progressContainer";

		var progressCancel = document.createElement("a");
		progressCancel.className = "progressCancel";
		progressCancel.href = "#";
		progressCancel.style.visibility = "hidden";
		progressCancel.appendChild(document.createTextNode(" "));

		var progressText = document.createElement("div");
		progressText.className = "progressName";
		progressText.appendChild(document.createTextNode(fileObj.name));

		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(progressBar);

		this.fileProgressWrapper.appendChild(this.fileProgressElement);

		document.getElementById(target_id).appendChild(this.fileProgressWrapper);
		FadeIn(this.fileProgressWrapper, 0);

	} else {
		this.fileProgressElement = this.fileProgressWrapper.firstChild;
		this.fileProgressElement.childNodes[1].firstChild.nodeValue = fileObj.name;
	}

	this.height = this.fileProgressWrapper.offsetHeight;

}
FileProgress.prototype.SetProgress = function(percentage) {
	this.fileProgressElement.className = "progressContainer green";
	this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[3].style.width = percentage + "%";
}
FileProgress.prototype.SetComplete = function() {
	this.fileProgressElement.className = "progressContainer blue";
	this.fileProgressElement.childNodes[3].className = "progressBarComplete";
	this.fileProgressElement.childNodes[3].style.width = "";

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

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

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

FileProgress.prototype.ToggleCancel = function(show, upload_obj, file_id) {
	this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
	if (upload_obj) {
		this.fileProgressElement.childNodes[0].onclick = function() { upload_obj.cancelUpload(); return false; };
	}
}

function AddImage(src) {
	var new_img = document.createElement("img");
	new_img.style.margin = "5px";

	document.getElementById("div_swfu_reponse").appendChild(new_img);
	document.getElementById("div_swfu_reponse").style.display = "block";
	if (new_img.filters) {
		try {
			new_img.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
		} catch (e) {
			// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
			new_img.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
		}
	} else {
		new_img.style.opacity = 0;
	}

	new_img.onload = function () { FadeIn(new_img, 0); };
	new_img.src = src;
}

function FadeIn(element, opacity) {
	var reduce_opacity_by = 15;
	var rate = 30;	// 15 fps


	if (opacity < 100) {
		opacity += reduce_opacity_by;
		if (opacity > 100) opacity = 100;

		if (element.filters) {
			try {
				element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 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.
				element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
			}
		} else {
			element.style.opacity = opacity / 100;
		}
	}

	if (opacity < 100) {
		setTimeout(function() { FadeIn(element, opacity); }, rate);
	}
}