silverstripe-cms/javascript/Upload.js

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/*
This class is wrapper for SWFUpload class.
If you want use SWFUpload, please use this class becuase it will take care of configuration
error handling and other things.
*/
Upload = Class.create();
Upload.prototype = {
/**
* Sets configuration data provided from user if smth is missing sets default value.
*
* @param params object contains all configuration data for upload.
*/
initialize: function(params) {
this.filesUploaded = 0;
this.filesToUpload = 0;
this.folderID = 'root';
this.uploadInProgress = false;
this.uploadMessage = '';
if(typeof params.fileSizeLimit != 'undefined') this.setFileSizeLimit = params.fileSizeLimit; else this.fileSizeLimit = '30720';
if(typeof params.fileTypes != 'undefined') this.fileTypes = params.fileTypes; else this.fileTypes = '*.*';
if(typeof params.fileTypesDescription != 'undefined') this.fileTypesDescription = params.fileTypesDescription; else this.fileTypesDescription = 'All Files';
if(typeof params.fileUploadLimit != 'undefined') this.fileUploadLimit = params.fileUploadLimit; else this.fileUploadLimit = '6';
if(typeof params.beginUploadOnQueue != 'undefined') this.beginUploadOnQueue = params.beginUploadOnQueue; else this.beginUploadOnQueue = false;
if(typeof params.fileQueued != 'undefined') this.fileQueued = params.fileQueued;
if(typeof params.fileProgress != 'undefined') this.fileProgress = params.fileProgress; else this.fileProgress = Prototype.emptyFunction;
if(typeof params.fileCancelled != 'undefined') this.fileCancelled = params.fileCancelled;
if(typeof params.fileComplete != 'undefined') this.fileComplete = params.fileComplete ;
if(typeof params.queueComplete != 'undefined') this.queueComplete = params.queueComplete;
if(typeof params.buildUI != 'undefined') this.customBuildUI = params.buildUI;
if(typeof params.securityID != 'undefined') this.securityID = params.securityID;
this.onLoad();
},
/**
* Creates SWFUpload object for uploading files.
*
*/
onLoad: function() {
path = this.getBasePath();
sessId = this.getSessionId();//Because flash doesn't send proper cookies, we need to set session id in URL.
this.swfu = new SWFUpload({
upload_target_url: path + '/assets/index/root?executeForm=UploadForm&SecurityID=' + this.securityID + '&PHPSESSID=' + sessId, // Relative to the SWF file
file_post_name: 'Files',
file_size_limit : this.fileSizeLimit,
file_types : this.fileTypes,
file_types_description : this.fileTypesDescription,
file_upload_limit : this.fileUploadLimit,
begin_upload_on_queue : this.beginUploadOnQueue,
use_server_data_event : true,
validate_files: false,
file_queued_handler : this.uploadFileQueuedCallback.bind(this),
file_complete_handler : this.uploadFileCompleteCallback.bind(this),
file_progress_handler: this.uploadFileProgressCallback.bind(this),
queue_complete_handler : this.uploadQueueCompleteCallback.bind(this),
error_handler : this.uploadErrorCallback.bind(this),
file_validation_handler : Prototype.emptyFunction,
file_cancelled_handler: Prototype.emptyFunction,
flash_url : 'jsparty/SWFUpload/SWFUpload.swf', // Relative to this file
ui_function: this.buildUI.bind(this),
debug: false
});
},
/**
* Retrieves base path from URL.
* TODO: Use base tag.
*/
getBasePath: function() {
var path = 'http://' + window.location.host + window.location.pathname;
if(path[path.length-1] == '/') path = path.substring(0,path.length-1);
return path;
},
/**
* Retrieves sessionId from cookie.
*
*/
getSessionId: function() {
var start = document.cookie.indexOf('PHPSESSID')+10;
var end = document.cookie.indexOf(';',start);
if(end == -1) end = document.cookie.length;
return document.cookie.substring(start,end);
},
/**
* Calls method defined by user, method should create user interface.
*
*/
buildUI: function() {
this.customBuildUI();
},
/**
* Called when new file is added to the queue
*
* @param file object
* @param queueLength int
*/
uploadFileQueuedCallback: function(file,queueLength) {
this.filesToUpload++;
this.fileQueued(file, queueLength);
this.addFileParam(file);
},
/**
* Called when uploading of particular file has finished
*
* @param file object
* @param servedData string
*/
uploadFileCompleteCallback: function(file,serverData) {
this.filesUploaded++;
var toEval = serverData.substr(serverData.indexOf('<script'));
toEval = toEval.replace('<script type="text/javascript">','');
toEval = toEval.replace('</script>','');
this.uploadMessage = toEval;
this.fileComplete(file, serverData);
},
/**
* Called during uploading file.
*
* @param file object
* @param bytes_complete int
*/
uploadFileProgressCallback: function(file, bytes_complete) {
this.uploadInProgress = true;
this.fileProgress(file, bytes_complete);
},
/**
* Called when whole queue has been uploaded or cancelled.
*/
uploadQueueCompleteCallback: function() {
this.queueComplete();
this.uploadInProgress = false;
this.filesUploaded = 0;
this.filesToUpload = 0;
},
/**
* Called on error.
* @param error_code int
* @param file object
* @param message string
*/
uploadErrorCallback: function(error_code, file, message) {
this.swfu.cancelQueue();
switch(error_code) {
case SWFUpload.ERROR_CODE_HTTP_ERROR:
alert('You have encountered an error. File hasn\'t been uploaded. Please hit the "Refresh" button in your web browser');
break;
case SWFUpload.ERROR_CODE_IO_ERROR:
alert('You have encountered an error. File hasn\'t been uploaded. Please hit the "Refresh" button in your web browser');
break;
case SWFUpload.ERROR_CODE_SECURITY_ERROR:
alert('You have encountered an error. File hasn\'t been uploaded. Please hit the "Refresh" button in your web browser');
break;
case SWFUpload.ERROR_CODE_FILE_EXCEEDS_SIZE_LIMIT:
alert('Files cannot be bigger than ' + this.fileSizeLimit/1024 + ' MB.');
break;
case SWFUpload.ERROR_CODE_ZERO_BYTE_FILE:
alert('Files cannot be empty');
break;
case SWFUpload.ERROR_CODE_QUEUE_LIMIT_EXCEEDED:
alert('You can only have six files in queue');
break;
case SWFUpload.ERROR_CODE_UPLOAD_FAILED:
alert('You have encountered an error. File hasn\'t has been uploaded. Please hit the "Refresh" button in your web browser');
break;
case SWFUpload.ERROR_CODE_SPECIFIED_FILE_NOT_FOUND:
alert('You have encountered an error. File hasn\'t has been uploaded. Please hit the "Refresh" button in your web browser');
break;
default:
alert('You have encountered an error. File hasn\'t has been uploaded. Please hit the "Refresh" button in your web browser');
}
},
/**
* Because we are on top of standard upload we need to add some POST vars that
* normally are being sent as part of form.
*
* @param file object
*/
addFileParam: function(file) {
this.swfu.addFileParam(file.id,'ID',this.folderID);
this.swfu.addFileParam(file.id,'action_doUpload','1');
this.swfu.addFileParam(file.id,'Files',file.name);
this.swfu.addFileParam(file.id,'MAX_FILE_SIZE','31457280');
},
/**
* Starts file explorer.
*
*/
browse: function() {
this.swfu.browse();
},
/**
* Starts upload
*
*/
startUpload: function() {
this.swfu.startUpload();
},
/**
* Cancels uploading of file.
*/
cancelUpload: function(fileId) {
this.filesToUpload--;
this.swfu.cancelUpload(fileId);
},
/*
* Getters and setters.
*/
setFolderID: function(id) {
this.folderID = id;
},
getFilesUploaded: function() {
return this.filesUploaded;
},
getFilesToUpload: function() {
return this.filesToUpload;
},
getUploadMessage: function() {
return this.uploadMessage;
},
isUploadInProgress: function() {
return this.uploadInProgress;
}
}