/**
* The YUI Uploader Control
* @module uploader
* @description <p>YUI Uploader provides file upload functionality that goes beyond the basic browser-based methods.
* Specifically, the YUI Uploader allows for:
* <ol>
* <li> Multiple file selection in a single "Open File" dialog.</li>
* <li> File extension filters to facilitate the user's selection.</li>
* <li> Progress tracking for file uploads.</li>
* <li> A range of file metadata: filename, size, date created, date modified, and author.</li>
* <li> A set of events dispatched on various aspects of the file upload process: file selection, upload progress, upload completion, etc.</li>
* <li> Inclusion of additional data in the file upload POST request.</li>
* <li> Faster file upload on broadband connections due to the modified SEND buffer size.</li>
* <li> Same-page server response upon completion of the file upload.</li>
* </ol>
* </p>
* @title Uploader
* @namespace YAHOO.widget
* @requires yahoo, dom, element, event
*/
/*!
* SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
*
* SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
* http://www.opensource.org/licenses/mit-license.php
*
*/
if(typeof deconcept == "undefined") var deconcept = new Object();
if(typeof deconcept.util == "undefined") deconcept.util = new Object();
if(typeof deconcept.SWFObjectUtil == "undefined") deconcept.SWFObjectUtil = new Object();
deconcept.SWFObject = function(swf, id, w, h, ver, c, quality, xiRedirectUrl, redirectUrl, detectKey) {
if (!document.getElementById) { return; }
this.DETECT_KEY = detectKey ? detectKey : 'detectflash';
this.skipDetect = deconcept.util.getRequestParameter(this.DETECT_KEY);
this.params = new Object();
this.variables = new Object();
this.attributes = new Array();
if(swf) { this.setAttribute('swf', swf); }
if(id) { this.setAttribute('id', id); }
if(w) { this.setAttribute('width', w); }
if(h) { this.setAttribute('height', h); }
if(ver) { this.setAttribute('version', new deconcept.PlayerVersion(ver.toString().split("."))); }
this.installedVer = deconcept.SWFObjectUtil.getPlayerVersion();
if (!window.opera && document.all && this.installedVer.major > 7) {
// only add the onunload cleanup if the Flash Player version supports External Interface and we are in IE
deconcept.SWFObject.doPrepUnload = true;
}
if(c) { this.addParam('bgcolor', c); }
var q = quality ? quality : 'high';
this.addParam('quality', q);
this.setAttribute('useExpressInstall', false);
this.setAttribute('doExpressInstall', false);
var xir = (xiRedirectUrl) ? xiRedirectUrl : window.location;
this.setAttribute('xiRedirectUrl', xir);
this.setAttribute('redirectUrl', '');
if(redirectUrl) { this.setAttribute('redirectUrl', redirectUrl); }
}
deconcept.SWFObject.prototype = {
useExpressInstall: function(path) {
this.xiSWFPath = !path ? "expressinstall.swf" : path;
this.setAttribute('useExpressInstall', true);
},
setAttribute: function(name, value){
this.attributes[name] = value;
},
getAttribute: function(name){
return this.attributes[name];
},
addParam: function(name, value){
this.params[name] = value;
},
getParams: function(){
return this.params;
},
addVariable: function(name, value){
this.variables[name] = value;
},
getVariable: function(name){
return this.variables[name];
},
getVariables: function(){
return this.variables;
},
getVariablePairs: function(){
var variablePairs = new Array();
var key;
var variables = this.getVariables();
for(key in variables){
variablePairs[variablePairs.length] = key +"="+ variables[key];
}
return variablePairs;
},
getSWFHTML: function() {
var swfNode = "";
if (navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length) { // netscape plugin architecture
if (this.getAttribute("doExpressInstall")) {
this.addVariable("MMplayerType", "PlugIn");
this.setAttribute('swf', this.xiSWFPath);
}
swfNode = '<embed type="application/x-shockwave-flash" src="'+ this.getAttribute('swf') +'" width="'+ this.getAttribute('width') +'" height="'+ this.getAttribute('height') +'" style="'+ this.getAttribute('style') +'"';
swfNode += ' id="'+ this.getAttribute('id') +'" name="'+ this.getAttribute('id') +'" ';
var params = this.getParams();
for(var key in params){ swfNode += [key] +'="'+ params[key] +'" '; }
var pairs = this.getVariablePairs().join("&");
if (pairs.length > 0){ swfNode += 'flashvars="'+ pairs +'"'; }
swfNode += '/>';
} else { // PC IE
if (this.getAttribute("doExpressInstall")) {
this.addVariable("MMplayerType", "ActiveX");
this.setAttribute('swf', this.xiSWFPath);
}
swfNode = '<object id="'+ this.getAttribute('id') +'" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+ this.getAttribute('width') +'" height="'+ this.getAttribute('height') +'" style="'+ this.getAttribute('style') +'">';
swfNode += '<param name="movie" value="'+ this.getAttribute('swf') +'" />';
var params = this.getParams();
for(var key in params) {
swfNode += '<param name="'+ key +'" value="'+ params[key] +'" />';
}
var pairs = this.getVariablePairs().join("&");
if(pairs.length > 0) {swfNode += '<param name="flashvars" value="'+ pairs +'" />';}
swfNode += "</object>";
}
return swfNode;
},
write: function(elementId){
if(this.getAttribute('useExpressInstall')) {
// check to see if we need to do an express install
var expressInstallReqVer = new deconcept.PlayerVersion([6,0,65]);
if (this.installedVer.versionIsValid(expressInstallReqVer) && !this.installedVer.versionIsValid(this.getAttribute('version'))) {
this.setAttribute('doExpressInstall', true);
this.addVariable("MMredirectURL", escape(this.getAttribute('xiRedirectUrl')));
document.title = document.title.slice(0, 47) + " - Flash Player Installation";
this.addVariable("MMdoctitle", document.title);
}
}
if(this.skipDetect || this.getAttribute('doExpressInstall') || this.installedVer.versionIsValid(this.getAttribute('version'))){
var n = (typeof elementId == 'string') ? document.getElementById(elementId) : elementId;
n.innerHTML = this.getSWFHTML();
return true;
}else{
if(this.getAttribute('redirectUrl') != "") {
document.location.replace(this.getAttribute('redirectUrl'));
}
}
return false;
}
}
/* ---- detection functions ---- */
deconcept.SWFObjectUtil.getPlayerVersion = function(){
var PlayerVersion = new deconcept.PlayerVersion([0,0,0]);
if(navigator.plugins && navigator.mimeTypes.length){
var x = navigator.plugins["Shockwave Flash"];
if(x && x.description) {
PlayerVersion = new deconcept.PlayerVersion(x.description.replace(/([a-zA-Z]|\s)+/, "").replace(/(\s+r|\s+b[0-9]+)/, ".").split("."));
}
}else if (navigator.userAgent && navigator.userAgent.indexOf("Windows CE") >= 0){ // if Windows CE
var axo = 1;
var counter = 3;
while(axo) {
try {
counter++;
axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+ counter);
// document.write("player v: "+ counter);
PlayerVersion = new deconcept.PlayerVersion([counter,0,0]);
} catch (e) {
axo = null;
}
}
} else { // Win IE (non mobile)
// do minor version lookup in IE, but avoid fp6 crashing issues
// see http://blog.deconcept.com/2006/01/11/getvariable-setvariable-crash-internet-explorer-flash-6/
try{
var axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
}catch(e){
try {
var axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
PlayerVersion = new deconcept.PlayerVersion([6,0,21]);
axo.AllowScriptAccess = "always"; // error if player version < 6.0.47 (thanks to Michael Williams @ Adobe for this code)
} catch(e) {
if (PlayerVersion.major == 6) {
return PlayerVersion;
}
}
try {
axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
} catch(e) {}
}
if (axo != null) {
PlayerVersion = new deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));
}
}
return PlayerVersion;
}
deconcept.PlayerVersion = function(arrVersion){
this.major = arrVersion[0] != null ? parseInt(arrVersion[0]) : 0;
this.minor = arrVersion[1] != null ? parseInt(arrVersion[1]) : 0;
this.rev = arrVersion[2] != null ? parseInt(arrVersion[2]) : 0;
}
deconcept.PlayerVersion.prototype.versionIsValid = function(fv){
if(this.major < fv.major) return false;
if(this.major > fv.major) return true;
if(this.minor < fv.minor) return false;
if(this.minor > fv.minor) return true;
if(this.rev < fv.rev) return false;
return true;
}
/* ---- get value of query string param ---- */
deconcept.util = {
getRequestParameter: function(param) {
var q = document.location.search || document.location.hash;
if (param == null) { return q; }
if(q) {
var pairs = q.substring(1).split("&");
for (var i=0; i < pairs.length; i++) {
if (pairs[i].substring(0, pairs[i].indexOf("=")) == param) {
return pairs[i].substring((pairs[i].indexOf("=")+1));
}
}
}
return "";
}
}
/* fix for video streaming bug */
deconcept.SWFObjectUtil.cleanupSWFs = function() {
var objects = document.getElementsByTagName("OBJECT");
for (var i = objects.length - 1; i >= 0; i--) {
objects[i].style.display = 'none';
for (var x in objects[i]) {
if (typeof objects[i][x] == 'function') {
objects[i][x] = function(){};
}
}
}
}
// fixes bug in some fp9 versions see http://blog.deconcept.com/2006/07/28/swfobject-143-released/
if (deconcept.SWFObject.doPrepUnload) {
if (!deconcept.unloadSet) {
deconcept.SWFObjectUtil.prepUnload = function() {
__flash_unloadHandler = function(){};
__flash_savedUnloadHandler = function(){};
window.attachEvent("onunload", deconcept.SWFObjectUtil.cleanupSWFs);
}
window.attachEvent("onbeforeunload", deconcept.SWFObjectUtil.prepUnload);
deconcept.unloadSet = true;
}
}
/* add document.getElementById if needed (mobile IE < 5) */
if (!document.getElementById && document.all) { document.getElementById = function(id) { return document.all[id]; }}
/* add some aliases for ease of use/backwards compatibility */
var getQueryParamValue = deconcept.util.getRequestParameter;
var FlashObject = deconcept.SWFObject; // for legacy support
var SWFObject = deconcept.SWFObject;
/**
* Wraps Flash embedding functionality and allows communication with SWF through
* attributes.
*
* @namespace YAHOO.widget
* @class FlashAdapter
* @uses YAHOO.util.AttributeProvider
*/
YAHOO.widget.FlashAdapter = function(swfURL, containerID, attributes)
{
// set up the initial events and attributes stuff
this._queue = this._queue || [];
this._events = this._events || {};
this._configs = this._configs || {};
attributes = attributes || {};
//the Flash Player external interface code from Adobe doesn't play nicely
//with the default value, yui-gen, in IE
this._id = attributes.id = attributes.id || YAHOO.util.Dom.generateId(null, "yuigen");
attributes.version = attributes.version || "9.0.45";
attributes.backgroundColor = attributes.backgroundColor || "#ffffff";
//we can't use the initial attributes right away
//so save them for once the SWF finishes loading
this._attributes = attributes;
this._swfURL = swfURL;
//embed the SWF file in the page
this._embedSWF(this._swfURL, containerID, attributes.id, attributes.version, attributes.backgroundColor, attributes.expressInstall);
/**
* Fires when the SWF is initialized and communication is possible.
* @event contentReady
*/
this.createEvent("contentReady");
};
YAHOO.extend(YAHOO.widget.FlashAdapter, YAHOO.util.AttributeProvider,
{
/**
* The URL of the SWF file.
* @property _swfURL
* @type String
* @private
*/
_swfURL: null,
/**
* A reference to the embedded SWF file.
* @property _swf
* @private
*/
_swf: null,
/**
* The id of this instance.
* @property _id
* @type String
* @private
*/
_id: null,
/**
* The initializing attributes are stored here until the SWF is ready.
* @property _attributes
* @type Object
* @private
*/
_attributes: null, //the intializing attributes
/**
* Public accessor to the unique name of the FlashAdapter instance.
*
* @method toString
* @return {String} Unique name of the FlashAdapter instance.
*/
toString: function()
{
return "FlashAdapter " + this._id;
},
/**
* Embeds the SWF in the page and associates it with this instance.
*
* @method _embedSWF
* @private
*/
_embedSWF: function(swfURL, containerID, swfID, version, backgroundColor, expressInstall)
{
//standard SWFObject embed
var swfObj = new deconcept.SWFObject(swfURL, swfID, "100%", "100%", version, backgroundColor, expressInstall);
//make sure we can communicate with ExternalInterface
swfObj.addParam("allowScriptAccess", "always");
//again, a useful ExternalInterface trick
swfObj.addVariable("allowedDomain", document.location.hostname);
//tell the SWF which HTML element it is in
swfObj.addVariable("elementID", swfID);
// set the name of the function to call when the swf has an event
swfObj.addVariable("eventHandler", "YAHOO.widget.FlashAdapter.eventHandler");
var container = YAHOO.util.Dom.get(containerID);
var result = swfObj.write(container);
if(result)
{
this._swf = YAHOO.util.Dom.get(swfID);
//if successful, let's add an owner property to the SWF reference
//this will allow the event handler to communicate with a YAHOO.widget.FlashAdapter
this._swf.owner = this;
}
},
/**
* Handles or re-dispatches events received from the SWF.
*
* @method _eventHandler
* @private
*/
_eventHandler: function(event)
{
var type = event.type;
switch(type)
{
case "swfReady":
{
this._loadHandler();
return;
}
case "log":
{
return;
}
}
//be sure to return after your case or the event will automatically fire!
this.fireEvent(type, event);
},
/**
* Called when the SWF has been initialized.
*
* @method _loadHandler
* @private
*/
_loadHandler: function()
{
this._initAttributes(this._attributes);
this.setAttributes(this._attributes, true);
this._attributes = null;
this.fireEvent("contentReady");
},
/**
* Initializes the attributes.
*
* @method _initAttributes
* @private
*/
_initAttributes: function(attributes)
{
//should be overridden if other attributes need to be set up
/**
* @attribute swfURL
* @description Absolute or relative URL to the SWF displayed by the FlashAdapter.
* @type String
*/
this.getAttributeConfig("swfURL",
{
method: this._getSWFURL
});
},
/**
* Getter for swfURL attribute.
*
* @method _getSWFURL
* @private
*/
_getSWFURL: function()
{
return this._swfURL;
}
});
/**
* Receives event messages from SWF and passes them to the correct instance
* of FlashAdapter.
*
* @method YAHOO.widget.FlashAdapter.eventHandler
* @static
* @private
*/
YAHOO.widget.FlashAdapter.eventHandler = function(elementID, event)
{
var loadedSWF = YAHOO.util.Dom.get(elementID);
if(!loadedSWF.owner)
{
//fix for ie: if owner doesn't exist yet, try again in a moment
setTimeout(function() { YAHOO.widget.FlashAdapter.eventHandler( elementID, event ); }, 0);
}
else loadedSWF.owner._eventHandler(event);
};
/**
* Uploader class for the YUI Uploader component.
*
* @namespace YAHOO.widget
* @class Uploader
* @uses YAHOO.widget.FlashAdapter
* @constructor
* @param containerId {HTMLElement} Container element for the Flash Player instance.
*/
YAHOO.widget.Uploader = function(containerId)
{
YAHOO.widget.Uploader.superclass.constructor.call(this, YAHOO.widget.Uploader.SWFURL, containerId, null);
/**
* Fires when the user has finished selecting files in the "Open File" dialog.
*
* @event fileSelect
* @param event.type {String} The event type
* @param event.fileList {Array} An array of objects with file information
* @param event.fileList[].size {Number} File size in bytes for a specific file in fileList
* @param event.fileList[].cDate {Date} Creation date for a specific file in fileList
* @param event.fileList[].mDate {Date} Modification date for a specific file in fileList
* @param event.fileList[].name {String} File name for a specific file in fileList
* @param event.fileList[].id {String} Unique file id of a specific file in fileList
*/
this.createEvent("fileSelect");
/**
* Fires when an upload of a specific file has started.
*
* @event uploadStart
* @param event.type {String} The event type
* @param event.id {String} The id of the file that's started to upload
*/
this.createEvent("uploadStart");
/**
* Fires when new information about the upload progress for a specific file is available.
*
* @event uploadProgress
* @param event.type {String} The event type
* @param event.id {String} The id of the file with which the upload progress data is associated
* @param bytesLoaded {Number} The number of bytes of the file uploaded so far
* @param bytesTotal {Number} The total size of the file
*/
this.createEvent("uploadProgress");
/**
* Fires when an upload for a specific file is cancelled.
*
* @event uploadCancel
* @param event.type {String} The event type
* @param event.id {String} The id of the file with which the upload has been cancelled.
*/
this.createEvent("uploadCancel");
/**
* Fires when an upload for a specific file is complete.
*
* @event uploadComplete
* @param event.type {String} The event type
* @param event.id {String} The id of the file for which the upload has been completed.
*/
this.createEvent("uploadComplete");
/**
* Fires when the server sends data in response to a completed upload.
*
* @event uploadCompleteData
* @param event.type {String} The event type
* @param event.id {String} The id of the file for which the upload has been completed.
* @param event.data {String} The raw data returned by the server in response to the upload.
*/
this.createEvent("uploadCompleteData");
/**
* Fires when an upload error occurs.
*
* @event uploadError
* @param event.type {String} The event type
* @param event.id {String} The id of the file that was being uploaded when the error has occurred.
* @param event.status {String} The status message associated with the error.
*/
this.createEvent("uploadError");
}
/**
* Location of the Uploader SWF
*
* @property Chart.SWFURL
* @private
* @static
* @final
* @default "assets/uploader.swf"
*/
YAHOO.widget.Uploader.SWFURL = "assets/uploader.swf";
YAHOO.extend(YAHOO.widget.Uploader, YAHOO.widget.FlashAdapter,
{
/**
* Invokes the "Open File" dialog and allows the user to select the files for upload
*
* @param allowMultiple {Boolean} If true, allows for multiple file selection; if false, only a single file can be selected. False by default.
* @param extensionFilterArray {Array} An array of key-value pairs for permissible file extensions. The array elements should
* be of the form: {description: "Images", extensions: "*.jpg; *.gif; *.png"}.
*/
browse: function(allowMultiple,extensionFilterArray)
{
this._swf.browse(allowMultiple,extensionFilterArray);
},
/**
* Starts the upload of the file specified by fileID to the location specified by uploadScriptPath.
*
* @param fileID {String} The id of the file to start uploading.
* @param uploadScriptPath {String} The URL of the upload location.
* @param method {String} Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
* @param vars {Object} The object containing variables to be sent in the same request as the file upload.
* @param fieldName {String} The name of the variable in the POST request containing the file data. "Filedata" by default.
*/
upload: function(fileID, uploadScriptPath, method, vars, fieldName)
{
this._swf.upload(fileID, uploadScriptPath, method, vars, fieldName);
},
/**
* Starts uploading all files in the queue. If this function is called, the upload queue is automatically managed.
*
* @param uploadScriptPath {String} The URL of the upload location.
* @param method {String} Either "GET" or "POST", specifying how the variables accompanying the file upload POST request should be submitted. "GET" by default.
* @param vars {Object} The object containing variables to be sent in the same request as the file upload.
* @param fieldName {String} The name of the variable in the POST request containing the file data. "Filedata" by default.
*/
uploadAll: function(uploadScriptPath, method, vars, fieldName)
{
this._swf.uploadAll(uploadScriptPath, method, vars, fieldName);
},
/**
* Cancels the upload of a specified file. If no file id is specified, all ongoing uploads are cancelled.
*
* @param fileID {String} The ID of the file whose upload should be cancelled.
*/
cancel: function(fileID)
{
this._swf.cancel(fileID);
},
/**
* Clears the list of files queued for upload.
*
*/
clearFileList: function()
{
this._swf.clearFileList();
},
/**
* Removes the specified file from the upload queue.
*
* @param fileID {String} The id of the file to remove from the upload queue.
*/
removeFile: function (fileID)
{
this._swf.removeFile(fileID);
}
});