File: /var/www/html/formacion.bdp.com.py-bk/lib/form/dndupload.js
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Javascript library for enableing a drag and drop upload interface
*
* @package moodlecore
* @subpackage form
* @copyright 2011 Davo Smith
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
M.form_dndupload = {}
M.form_dndupload.init = function(Y, options) {
var dnduploadhelper = {
// YUI object.
Y: null,
// URL for upload requests
url: M.cfg.wwwroot + '/repository/repository_ajax.php?action=upload',
// options may include: itemid, acceptedtypes, maxfiles, maxbytes, clientid, repositoryid, author, contextid
options: {},
// itemid used for repository upload
itemid: null,
// accepted filetypes accepted by this form passed to repository
acceptedtypes: [],
// maximum size of files allowed in this form
maxbytes: 0,
// Maximum combined size of files allowed in this form. {@link FILE_AREA_MAX_BYTES_UNLIMITED}
areamaxbytes: -1,
// unqiue id of this form field used for html elements
clientid: '',
// upload repository id, used for upload
repositoryid: 0,
// container which holds the node which recieves drag events
container: null,
// filemanager element we are working with
filemanager: null,
// callback to filepicker element to refesh when uploaded
callback: null,
// Nasty hack to distinguish between dragenter(first entry),
// dragenter+dragleave(moving between child elements) and dragleave (leaving element)
entercount: 0,
pageentercount: 0,
// Holds the progress bar elements for each file.
progressbars: {},
// Number of request in queue and number of request uploading.
totalOfRequest: 0,
// Number of request upload.
numberOfRequestUpload: 0,
/**
* Initalise the drag and drop upload interface
* Note: one and only one of options.filemanager and options.formcallback must be defined
*
* @param Y the YUI object
* @param object options {
* itemid: itemid used for repository upload in this form
* acceptdtypes: accepted filetypes by this form
* maxfiles: maximum number of files this form allows
* maxbytes: maximum size of files allowed in this form
* areamaxbytes: maximum combined size of files allowed in this form
* clientid: unqiue id of this form field used for html elements
* contextid: id of the current cotnext
* containerid: htmlid of container
* repositories: array of repository objects passed from filepicker
* filemanager: filemanager element we are working with
* formcallback: callback to filepicker element to refesh when uploaded
* }
*/
init: function(Y, options) {
this.Y = Y;
if (!this.browser_supported()) {
Y.one('body').addClass('dndnotsupported');
return; // Browser does not support the required functionality
}
// try and retrieve enabled upload repository
this.repositoryid = this.get_upload_repositoryid(options.repositories);
if (!this.repositoryid) {
Y.one('body').addClass('dndnotsupported');
return; // no upload repository is enabled to upload to
}
Y.one('body').addClass('dndsupported');
this.options = options;
this.acceptedtypes = options.acceptedtypes;
this.clientid = options.clientid;
this.maxbytes = options.maxbytes;
this.areamaxbytes = options.areamaxbytes;
this.itemid = options.itemid;
this.author = options.author;
this.container = this.Y.one('#'+options.containerid);
if (options.filemanager) {
// Needed to tell the filemanager to redraw when files uploaded
// and to check how many files are already uploaded
this.filemanager = options.filemanager;
} else if (options.formcallback) {
// Needed to tell the filepicker to update when a new
// file is uploaded
this.callback = options.formcallback;
} else {
if (M.cfg.developerdebug) {
alert('dndupload: Need to define either options.filemanager or options.formcallback');
}
return;
}
this.init_events();
this.init_page_events();
},
/**
* Check the browser has the required functionality
* @return true if browser supports drag/drop upload
*/
browser_supported: function() {
if (typeof FileReader == 'undefined') {
return false;
}
if (typeof FormData == 'undefined') {
return false;
}
return true;
},
/**
* Get upload repoistory from array of enabled repositories
*
* @param array repositories repository objects passed from filepicker
* @param returns int id of upload repository or false if not found
*/
get_upload_repositoryid: function(repositories) {
for (var i in repositories) {
if (repositories[i].type == "upload") {
return repositories[i].id;
}
}
return false;
},
/**
* Initialise drag events on node container, all events need
* to be processed for drag and drop to work
*/
init_events: function() {
this.Y.on('dragenter', this.drag_enter, this.container, this);
this.Y.on('dragleave', this.drag_leave, this.container, this);
this.Y.on('dragover', this.drag_over, this.container, this);
this.Y.on('drop', this.drop, this.container, this);
},
/**
* Initialise whole-page events (to show / hide the 'drop files here'
* message)
*/
init_page_events: function() {
this.Y.on('dragenter', this.drag_enter_page, 'body', this);
this.Y.on('dragleave', this.drag_leave_page, 'body', this);
this.Y.on('drop', function() {
this.pageentercount = 0;
this.hide_drop_target();
}.bind(this));
},
/**
* Check if the filemanager / filepicker is disabled
* @return bool - true if disabled
*/
is_disabled: function() {
return (this.container.ancestor('.fitem.disabled') != null);
},
/**
* Show the 'drop files here' message when file(s) are dragged
* onto the page
*/
drag_enter_page: function(e) {
if (this.is_disabled()) {
return false;
}
if (!this.has_files(e)) {
return false;
}
this.pageentercount++;
if (this.pageentercount >= 2) {
this.pageentercount = 2;
return false;
}
this.show_drop_target();
return false;
},
/**
* Hide the 'drop files here' message when file(s) are dragged off
* the page again
*/
drag_leave_page: function(e) {
this.pageentercount--;
if (this.pageentercount == 1) {
return false;
}
this.pageentercount = 0;
this.hide_drop_target();
return false;
},
/**
* Check if the drag contents are valid and then call
* preventdefault / stoppropagation to let the browser know
* we will handle this drag/drop
*
* @param e event object
* @return boolean true if a valid file drag event
*/
check_drag: function(e) {
if (this.is_disabled()) {
return false;
}
if (!this.has_files(e)) {
return false;
}
e.preventDefault();
e.stopPropagation();
return true;
},
/**
* Handle a dragenter event, highlight the destination node
* when a suitable drag event occurs
*/
drag_enter: function(e) {
if (!this.check_drag(e)) {
return true;
}
this.entercount++;
if (this.entercount >= 2) {
this.entercount = 2; // Just moved over a child element - nothing to do
return false;
}
// These lines are needed if the user has dragged something directly
// from application onto the 'fileupload' box, without crossing another
// part of the page first
this.pageentercount = 2;
this.show_drop_target();
this.show_upload_ready();
return false;
},
/**
* Handle a dragleave event, Remove the highlight if dragged from
* node
*/
drag_leave: function(e) {
if (!this.check_drag(e)) {
return true;
}
this.entercount--;
if (this.entercount == 1) {
return false; // Just moved over a child element - nothing to do
}
this.entercount = 0;
this.hide_upload_ready();
return false;
},
/**
* Handle a dragover event. Required to intercept to prevent the browser from
* handling the drag and drop event as normal
*/
drag_over: function(e) {
if (!this.check_drag(e)) {
return true;
}
return false;
},
/**
* Handle a drop event. Remove the highlight and then upload each
* of the files (until we reach the file limit, or run out of files)
*/
drop: function(e) {
if (!this.check_drag(e, true)) {
return true;
}
this.entercount = 0;
this.pageentercount = 0;
this.hide_upload_ready();
this.hide_drop_target();
var files = e._event.dataTransfer.files;
if (this.filemanager) {
var options = {
files: files,
options: this.options,
repositoryid: this.repositoryid,
currentfilecount: this.filemanager.filecount, // All files uploaded.
currentfiles: this.filemanager.options.list, // Only the current folder.
callback: Y.bind('update_filemanager', this),
callbackprogress: Y.bind('update_progress', this),
callbackcancel: Y.bind('hide_progress', this),
callbackNumberOfRequestUpload: {
get: Y.bind('getNumberOfRequestUpload', this),
increase: Y.bind('increaseNumberOfRequestUpload', this),
decrease: Y.bind('decreaseNumberOfRequestUpload', this),
getTotal: Y.bind('getTotalRequestUpload', this),
increaseTotal: Y.bind('increaseTotalRequest', this),
reset: Y.bind('resetNumberOfRequestUpload', this)
},
callbackClearProgress: Y.bind('clear_progress', this),
callbackStartProgress: Y.bind('startProgress', this),
};
this.show_progress();
var uploader = new dnduploader(options);
uploader.start_upload();
} else {
if (files.length >= 1) {
options = {
files:[files[0]],
options: this.options,
repositoryid: this.repositoryid,
currentfilecount: 0,
currentfiles: [],
callback: Y.bind('update_filemanager', this),
callbackprogress: Y.bind('update_progress', this),
callbackcancel: Y.bind('hide_progress', this),
callbackNumberOfRequestUpload: {
get: Y.bind('getNumberOfRequestUpload', this),
increase: Y.bind('increaseNumberOfRequestUpload', this),
decrease: Y.bind('decreaseNumberOfRequestUpload', this),
getTotal: Y.bind('getTotalRequestUpload', this),
increaseTotal: Y.bind('increaseTotalRequest', this),
reset: Y.bind('resetNumberOfRequestUpload', this)
},
callbackClearProgress: Y.bind('clear_progress', this),
callbackStartProgress: Y.bind('startProgress', this),
};
this.show_progress();
uploader = new dnduploader(options);
uploader.start_upload();
}
}
return false;
},
/**
* Increase number of request upload.
*/
increaseNumberOfRequestUpload: function() {
this.numberOfRequestUpload++;
},
/**
* Increase total request.
*
* @param {number} newFileCount Number of new files.
*/
increaseTotalRequest: function(newFileCount) {
this.totalOfRequest += newFileCount;
},
/**
* Decrease number of request upload.
*/
decreaseNumberOfRequestUpload: function() {
this.numberOfRequestUpload--;
},
/**
* Return number of request upload.
*
* @returns {number}
*/
getNumberOfRequestUpload: function() {
return this.numberOfRequestUpload;
},
/**
* Return number of request upload.
*
* @returns {number}
*/
getTotalRequestUpload: function() {
return this.totalOfRequest;
},
/**
* Return number of request upload.
*
* @returns {number}
*/
resetNumberOfRequestUpload: function() {
this.numberOfRequestUpload = 0;
this.totalOfRequest = 0;
},
/**
* Check to see if the drag event has any files in it
*
* @param e event object
* @return boolean true if event has files
*/
has_files: function(e) {
// In some browsers, dataTransfer.types may be null for a
// 'dragover' event, so ensure a valid Array is always
// inspected.
var types = e._event.dataTransfer.types || [];
for (var i=0; i<types.length; i++) {
if (types[i] == 'Files') {
return true;
}
}
return false;
},
/**
* Highlight the area where files could be dropped
*/
show_drop_target: function() {
this.container.addClass('dndupload-ready');
},
hide_drop_target: function() {
this.container.removeClass('dndupload-ready');
},
/**
* Highlight the destination node (ready to drop)
*/
show_upload_ready: function() {
this.container.addClass('dndupload-over');
},
/**
* Remove highlight on destination node
*/
hide_upload_ready: function() {
this.container.removeClass('dndupload-over');
},
/**
* Show the element showing the upload in progress
*/
show_progress: function() {
this.container.addClass('dndupload-inprogress');
},
/**
* Hide the element showing upload in progress
*/
hide_progress: function() {
if (!Object.keys(this.progressbars).length) {
this.container.removeClass('dndupload-inprogress');
}
},
/**
* Tell the attached filemanager element (if any) to refresh on file
* upload
*/
update_filemanager: function(params) {
this.clear_progress();
this.hide_progress();
if (this.filemanager) {
// update the filemanager that we've uploaded the files
this.filemanager.filepicker_callback();
} else if (this.callback) {
this.callback(params);
}
},
/**
* Clear the all progress bars.
*/
clear_progress: function() {
var filename;
for (filename in this.progressbars) {
if (this.progressbars.hasOwnProperty(filename)) {
this.progressbars[filename].progressouter.remove(true);
delete this.progressbars[filename];
}
}
},
/**
* Show the current progress of the uploaded file.
*/
update_progress: function(filename, percent) {
this.startProgress(filename);
this.progressbars[filename].progressinner.setStyle('width', percent + '%');
this.progressbars[filename].progressinner.setAttribute('aria-valuenow', percent);
this.progressbars[filename].progressinnertext.setContent(percent + '% ' + M.util.get_string('complete', 'moodle'));
},
/**
* Start to show the progress of the uploaded file.
*
* @param {String} filename Name of file upload.
*/
startProgress: function(filename) {
if (this.progressbars[filename] === undefined) {
var dispfilename = filename;
if (dispfilename.length > 50) {
dispfilename = dispfilename.substr(0, 49) + '…';
}
var progressouter = this.container.create('<div>' + dispfilename +
'<div class="progress">' +
' <div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">' +
' <span class="sr-only"></span>' +
' </div>' +
'</div></div>');
var progressinner = progressouter.one('.progress-bar');
var progressinnertext = progressinner.one('.sr-only');
var progresscontainer = this.container.one('.dndupload-progressbars');
progresscontainer.appendChild(progressouter);
this.progressbars[filename] = {
progressouter: progressouter,
progressinner: progressinner,
progressinnertext: progressinnertext
};
}
}
};
var dnduploader = function(options) {
dnduploader.superclass.constructor.apply(this, arguments);
};
Y.extend(dnduploader, Y.Base, {
// The URL to send the upload data to.
api: M.cfg.wwwroot+'/repository/repository_ajax.php',
// Options passed into the filemanager/filepicker element.
options: {},
// The function to call when all uploads complete.
callback: null,
// The function to call as the upload progresses
callbackprogress: null,
// The function to call if the upload is cancelled
callbackcancel: null,
// The list of files dropped onto the element.
files: null,
// The ID of the 'upload' repository.
repositoryid: 0,
// Array of files already in the current folder (to check for name clashes).
currentfiles: null,
// Total number of files already uploaded (to check for exceeding limits).
currentfilecount: 0,
// Number of new files will be upload in this dndupload (to check for exceeding limits).
newFileCount: 0,
// Total size of the files present in the area.
currentareasize: 0,
// The list of files to upload.
uploadqueue: [],
// This list of files with name clashes.
renamequeue: [],
// Size of the current queue.
queuesize: 0,
// Set to true if the user has clicked on 'overwrite all'.
overwriteall: false,
// Set to true if the user has clicked on 'rename all'.
renameall: false,
// The file manager helper.
filemanagerhelper: null,
// The function to call as the number of request upload.
callbackNumberOfRequestUpload: null,
// The function to call as the clear progresses.
callbackClearProgress: null,
// The function to call as the start progress.
callbackStartProgress: null,
/**
* Initialise the settings for the dnduploader
* @param object params - includes:
* options (copied from the filepicker / filemanager)
* repositoryid - ID of the upload repository
* callback - the function to call when uploads are complete
* currentfiles - the list of files already in the current folder in the filemanager
* currentfilecount - the total files already in the filemanager
* files - the list of files to upload
* @return void
*/
initializer: function(params) {
this.options = params.options;
this.repositoryid = params.repositoryid;
this.callback = params.callback;
this.callbackprogress = params.callbackprogress;
this.callbackcancel = params.callbackcancel;
this.currentfiles = params.currentfiles;
this.currentfilecount = params.currentfilecount;
this.currentareasize = 0;
this.filemanagerhelper = this.options.filemanager;
this.callbackNumberOfRequestUpload = params.callbackNumberOfRequestUpload;
this.callbackClearProgress = params.callbackClearProgress;
this.callbackStartProgress = params.callbackStartProgress;
// Retrieve the current size of the area.
for (var i = 0; i < this.currentfiles.length; i++) {
this.currentareasize += this.currentfiles[i].size;
};
if (!this.initialise_queue(params.files)) {
if (this.callbackcancel) {
this.callbackcancel();
}
}
},
/**
* Entry point for starting the upload process (starts by processing any
* renames needed)
*/
start_upload: function() {
this.process_renames(); // Automatically calls 'do_upload' once renames complete.
},
/**
* Display a message in a popup
* @param string msg - the message to display
* @param string type - 'error' or 'info'
*/
print_msg: function(msg, type) {
var header = M.util.get_string('error', 'moodle');
if (type != 'error') {
type = 'info'; // one of only two types excepted
header = M.util.get_string('info', 'moodle');
}
if (!this.msg_dlg) {
this.msg_dlg_node = Y.Node.create(M.core_filepicker.templates.message);
this.msg_dlg_node.generateID();
this.msg_dlg = new M.core.dialogue({
bodyContent: this.msg_dlg_node,
centered: true,
modal: true,
visible: false
});
this.msg_dlg.plug(Y.Plugin.Drag,{handles:['#'+this.msg_dlg_node.get('id')+' .yui3-widget-hd']});
this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
e.preventDefault();
this.msg_dlg.hide();
}, this);
}
this.msg_dlg.set('headerContent', header);
this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
this.msg_dlg_node.one('.fp-msg-text').setContent(msg);
this.msg_dlg.show();
},
/**
* Check the size of each file and add to either the uploadqueue or, if there
* is a name clash, the renamequeue
* @param FileList files - the files to upload
* @return void
*/
initialise_queue: function(files) {
this.uploadqueue = [];
this.renamequeue = [];
this.queuesize = 0;
// Loop through the files and find any name clashes with existing files.
var i;
for (i=0; i<files.length; i++) {
if (this.options.maxbytes > 0 && files[i].size > this.options.maxbytes) {
// Check filesize before attempting to upload.
var maxbytesdisplay = this.display_size(this.options.maxbytes);
this.print_msg(M.util.get_string('maxbytesfile', 'error', {
file: files[i].name,
size: maxbytesdisplay
}), 'error');
this.uploadqueue = []; // No uploads if one file is too big.
return;
}
if (this.has_name_clash(files[i].name)) {
this.renamequeue.push(files[i]);
} else {
if (!this.add_to_upload_queue(files[i], files[i].name, false)) {
return false;
}
}
this.queuesize += files[i].size;
}
return true;
},
/**
* Generate the display for file size
* @param int size The size to convert to human readable form
* @return string
*/
display_size: function(size) {
// This is snippet of code (with some changes) is from the display_size function in moodlelib.
var gb = M.util.get_string('sizegb', 'moodle'),
mb = M.util.get_string('sizemb', 'moodle'),
kb = M.util.get_string('sizekb', 'moodle'),
b = M.util.get_string('sizeb', 'moodle');
if (size >= 1073741824) {
size = Math.round(size / 1073741824 * 10) / 10 + gb;
} else if (size >= 1048576) {
size = Math.round(size / 1048576 * 10) / 10 + mb;
} else if (size >= 1024) {
size = Math.round(size / 1024 * 10) / 10 + kb;
} else {
size = parseInt(size, 10) + ' ' + b;
}
return size;
},
/**
* Add a single file to the uploadqueue, whilst checking the maxfiles limit
* @param File file - the file to add
* @param string filename - the name to give the file on upload
* @param bool overwrite - true to overwrite the existing file
* @return bool true if added successfully
*/
add_to_upload_queue: function(file, filename, overwrite) {
if (!overwrite) {
this.newFileCount++;
}
// The value for "unlimited files" is -1, so 0 should mean 0.
if (this.options.maxfiles >= 0 && this.getTotalNumberOfFiles() > this.options.maxfiles) {
// Too many files - abort entire upload.
this.uploadqueue = [];
this.renamequeue = [];
this.print_msg(M.util.get_string('maxfilesreached', 'moodle', this.options.maxfiles), 'error');
return false;
}
// The new file will cause the area to reach its limit, we cancel the upload of all files.
// -1 is the value defined by FILE_AREA_MAX_BYTES_UNLIMITED.
if (this.options.areamaxbytes > -1) {
var sizereached = this.currentareasize + this.queuesize + file.size;
if (sizereached > this.options.areamaxbytes) {
this.uploadqueue = [];
this.renamequeue = [];
this.print_msg(M.util.get_string('maxareabytesreached', 'moodle'), 'error');
return false;
}
}
this.uploadqueue.push({file:file, filename:filename, overwrite:overwrite});
return true;
},
/**
* Get total number of files: Number of uploaded files, number of files unloading in other dndupload,
* number of files need to be upload in this dndupload.
* @return number Total number of files.
*/
getTotalNumberOfFiles: function() {
// Get number of files we added into other dndupload.
let totalOfFiles = 0;
if(this.callbackNumberOfRequestUpload) {
totalOfFiles = this.callbackNumberOfRequestUpload.getTotal();
}
return this.currentfilecount + this.newFileCount + totalOfFiles;
},
/**
* Take the next file from the renamequeue and ask the user what to do with
* it. Called recursively until the queue is empty, then calls do_upload.
* @return void
*/
process_renames: function() {
if (this.renamequeue.length == 0) {
// All rename processing complete - start the actual upload.
if(this.callbackNumberOfRequestUpload && this.uploadqueue.length > 0) {
this.callbackNumberOfRequestUpload.increaseTotal(this.newFileCount);
}
this.do_upload();
return;
}
var multiplefiles = (this.renamequeue.length > 1);
// Get the next file from the rename queue.
var file = this.renamequeue.shift();
// Generate a non-conflicting name for it.
var newname = this.generate_unique_name(file.name);
// If the user has clicked on overwrite/rename ALL then process
// this file, as appropriate, then process the rest of the queue.
if (this.overwriteall) {
if (this.add_to_upload_queue(file, file.name, true)) {
this.process_renames();
}
return;
}
if (this.renameall) {
if (this.add_to_upload_queue(file, newname, false)) {
this.process_renames();
}
return;
}
// Ask the user what to do with this file.
var self = this;
var process_dlg_node;
if (multiplefiles) {
process_dlg_node = Y.Node.create(M.core_filepicker.templates.processexistingfilemultiple);
} else {
process_dlg_node = Y.Node.create(M.core_filepicker.templates.processexistingfile);
}
var node = process_dlg_node;
node.generateID();
var process_dlg = new M.core.dialogue({
bodyContent: node,
headerContent: M.util.get_string('fileexistsdialogheader', 'repository'),
centered: true,
modal: true,
visible: false
});
process_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
// Overwrite original.
node.one('.fp-dlg-butoverwrite').on('click', function(e) {
e.preventDefault();
process_dlg.hide();
if (self.add_to_upload_queue(file, file.name, true)) {
self.process_renames();
}
}, this);
// Rename uploaded file.
node.one('.fp-dlg-butrename').on('click', function(e) {
e.preventDefault();
process_dlg.hide();
if (self.add_to_upload_queue(file, newname, false)) {
self.process_renames();
}
}, this);
// Cancel all uploads.
node.one('.fp-dlg-butcancel').on('click', function(e) {
e.preventDefault();
process_dlg.hide();
if (self.callbackcancel) {
this.notifyUploadCompleted();
self.callbackClearProgress();
self.callbackcancel();
}
}, this);
// When we are at the file limit, only allow 'overwrite', not rename.
if (this.getTotalNumberOfFiles() == this.options.maxfiles) {
node.one('.fp-dlg-butrename').setStyle('display', 'none');
if (multiplefiles) {
node.one('.fp-dlg-butrenameall').setStyle('display', 'none');
}
}
// If there are more files still to go, offer the 'overwrite/rename all' options.
if (multiplefiles) {
// Overwrite all original files.
node.one('.fp-dlg-butoverwriteall').on('click', function(e) {
e.preventDefault();
process_dlg.hide();
this.overwriteall = true;
if (self.add_to_upload_queue(file, file.name, true)) {
self.process_renames();
}
}, this);
// Rename all new files.
node.one('.fp-dlg-butrenameall').on('click', function(e) {
e.preventDefault();
process_dlg.hide();
this.renameall = true;
if (self.add_to_upload_queue(file, newname, false)) {
self.process_renames();
}
}, this);
}
node.one('.fp-dlg-text').setContent(M.util.get_string('fileexists', 'moodle', file.name));
process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', newname));
// Destroy the dialog once it has been hidden.
process_dlg.after('visibleChange', function(e) {
if (!process_dlg.get('visible')) {
if (self.callbackcancel) {
self.callbackcancel();
}
process_dlg.destroy(true);
}
}, this);
process_dlg.show();
},
/**
* Trigger upload completed event.
*/
notifyUploadCompleted: function() {
require(['core_form/events'], function(FormEvent) {
const elementId = this.filemanagerhelper ? this.filemanagerhelper.filemanager.get('id') : this.options.containerid;
FormEvent.triggerUploadCompleted(elementId);
}.bind(this));
},
/**
* Trigger form upload start events.
*/
notifyUploadStarted: function() {
require(['core_form/events'], function(FormEvent) {
const elementId = this.filemanagerhelper ? this.filemanagerhelper.filemanager.get('id') : this.options.containerid;
FormEvent.triggerUploadStarted(elementId);
}.bind(this));
},
/**
* Checks if there is already a file with the given name in the current folder
* or in the list of already uploading files
* @param string filename - the name to test
* @return bool true if the name already exists
*/
has_name_clash: function(filename) {
// Check against the already uploaded files
var i;
for (i=0; i<this.currentfiles.length; i++) {
if (filename == this.currentfiles[i].filename) {
return true;
}
}
// Check against the uploading files that have already been processed
for (i=0; i<this.uploadqueue.length; i++) {
if (filename == this.uploadqueue[i].filename) {
return true;
}
}
return false;
},
/**
* Gets a unique file name
*
* @param string filename
* @return string the unique filename generated
*/
generate_unique_name: function(filename) {
// Loop through increating numbers until a unique name is found.
while (this.has_name_clash(filename)) {
filename = increment_filename(filename);
}
return filename;
},
/**
* Upload the next file from the uploadqueue - called recursively after each
* upload is complete, then handles the callback to the filemanager/filepicker
* @param lastresult - the last result from the server
*/
do_upload: function(lastresult) {
if (this.uploadqueue.length > 0) {
var filedetails = this.uploadqueue.shift();
this.upload_file(filedetails.file, filedetails.filename, filedetails.overwrite);
} else {
if (this.callbackNumberOfRequestUpload && !this.callbackNumberOfRequestUpload.get()) {
this.uploadfinished(lastresult);
}
}
},
/**
* Run the callback to the filemanager/filepicker
*/
uploadfinished: function(lastresult) {
this.callbackNumberOfRequestUpload.reset();
this.callback(lastresult);
},
/**
* Upload a single file via an AJAX call to the 'upload' repository. Automatically
* calls do_upload as each upload completes.
* @param File file - the file to upload
* @param string filename - the name to give the file
* @param bool overwrite - true if the existing file should be overwritten
*/
upload_file: function(file, filename, overwrite) {
// This would be an ideal place to use the Y.io function
// however, this does not support data encoded using the
// FormData object, which is needed to transfer data from
// the DataTransfer object into an XMLHTTPRequest
// This can be converted when the YUI issue has been integrated:
// http://yuilibrary.com/projects/yui3/ticket/2531274
var xhr = new XMLHttpRequest();
var self = this;
if (self.callbackNumberOfRequestUpload) {
self.callbackNumberOfRequestUpload.increase();
}
// Start progress bar.
xhr.onloadstart = function() {
self.callbackStartProgress(filename);
self.notifyUploadStarted();
};
// Update the progress bar
xhr.upload.addEventListener('progress', function(e) {
if (e.lengthComputable && self.callbackprogress) {
var percentage = Math.round((e.loaded * 100) / e.total);
self.callbackprogress(filename, percentage);
}
}, false);
xhr.onreadystatechange = function() { // Process the server response
if (xhr.readyState == 4) {
self.notifyUploadCompleted();
if (xhr.status == 200) {
var result = JSON.parse(xhr.responseText);
if (result) {
if (result.error) {
self.print_msg(result.error, 'error'); // TODO add filename?
self.uploadfinished();
} else {
// Only update the filepicker if there were no errors
if (result.event == 'fileexists') {
// Do not worry about this, as we only care about the last
// file uploaded, with the filepicker
result.file = result.newfile.filename;
result.url = result.newfile.url;
}
result.client_id = self.options.clientid;
if (self.callbackprogress) {
self.callbackprogress(filename, 100);
}
}
}
if (self.callbackNumberOfRequestUpload) {
self.callbackNumberOfRequestUpload.decrease();
}
self.do_upload(result); // continue uploading
} else {
self.print_msg(M.util.get_string('serverconnection', 'error'), 'error');
self.uploadfinished();
}
}
};
// Prepare the data to send
var formdata = new FormData();
formdata.append('repo_upload_file', file); // The FormData class allows us to attach a file
formdata.append('sesskey', M.cfg.sesskey);
formdata.append('repo_id', this.repositoryid);
formdata.append('itemid', this.options.itemid);
if (this.options.author) {
formdata.append('author', this.options.author);
}
if (this.options.filemanager) { // Filepickers do not have folders
formdata.append('savepath', this.options.filemanager.currentpath);
}
formdata.append('title', filename);
if (overwrite) {
formdata.append('overwrite', 1);
}
if (this.options.contextid) {
formdata.append('ctx_id', this.options.contextid);
}
// Accepted types can be either a string or an array, but an array is
// expected in the processing script, so make sure we are sending an array
if (this.options.acceptedtypes.constructor == Array) {
for (var i=0; i<this.options.acceptedtypes.length; i++) {
formdata.append('accepted_types[]', this.options.acceptedtypes[i]);
}
} else {
formdata.append('accepted_types[]', this.options.acceptedtypes);
}
// Send the file & required details.
var uploadUrl = this.api;
if (uploadUrl.indexOf('?') !== -1) {
uploadUrl += '&action=upload';
} else {
uploadUrl += '?action=upload';
}
xhr.open("POST", uploadUrl, true);
xhr.send(formdata);
return true;
}
});
dnduploadhelper.init(Y, options);
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