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https://github.com/moodle/moodle.git
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6b2b72d6f9
This can happen when the 'dragover' event fires as has been observed in Safari. When the dataTransfer.types property of the event is null, accessing types.length throws a JavaScript error.
911 lines
35 KiB
JavaScript
911 lines
35 KiB
JavaScript
// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Javascript library for enableing a drag and drop upload interface
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*
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* @package moodlecore
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* @subpackage form
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* @copyright 2011 Davo Smith
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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M.form_dndupload = {}
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M.form_dndupload.init = function(Y, options) {
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var dnduploadhelper = {
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// YUI object.
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Y: null,
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// URL for upload requests
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url: M.cfg.wwwroot + '/repository/repository_ajax.php?action=upload',
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// options may include: itemid, acceptedtypes, maxfiles, maxbytes, clientid, repositoryid, author
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options: {},
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// itemid used for repository upload
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itemid: null,
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// accepted filetypes accepted by this form passed to repository
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acceptedtypes: [],
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// maximum size of files allowed in this form
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maxbytes: 0,
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// Maximum combined size of files allowed in this form. {@link FILE_AREA_MAX_BYTES_UNLIMITED}
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areamaxbytes: -1,
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// unqiue id of this form field used for html elements
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clientid: '',
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// upload repository id, used for upload
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repositoryid: 0,
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// container which holds the node which recieves drag events
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container: null,
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// filemanager element we are working with
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filemanager: null,
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// callback to filepicker element to refesh when uploaded
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callback: null,
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// Nasty hack to distinguish between dragenter(first entry),
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// dragenter+dragleave(moving between child elements) and dragleave (leaving element)
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entercount: 0,
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pageentercount: 0,
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// Holds the progress bar elements for each file.
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progressbars: {},
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/**
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* Initalise the drag and drop upload interface
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* Note: one and only one of options.filemanager and options.formcallback must be defined
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*
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* @param Y the YUI object
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* @param object options {
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* itemid: itemid used for repository upload in this form
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* acceptdtypes: accepted filetypes by this form
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* maxfiles: maximum number of files this form allows
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* maxbytes: maximum size of files allowed in this form
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* areamaxbytes: maximum combined size of files allowed in this form
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* clientid: unqiue id of this form field used for html elements
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* containerid: htmlid of container
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* repositories: array of repository objects passed from filepicker
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* filemanager: filemanager element we are working with
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* formcallback: callback to filepicker element to refesh when uploaded
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* }
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*/
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init: function(Y, options) {
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this.Y = Y;
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if (!this.browser_supported()) {
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Y.one('body').addClass('dndnotsupported');
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return; // Browser does not support the required functionality
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}
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Y.one('body').addClass('dndsupported');
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// try and retrieve enabled upload repository
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this.repositoryid = this.get_upload_repositoryid(options.repositories);
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if (!this.repositoryid) {
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return; // no upload repository is enabled to upload to
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}
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this.options = options;
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this.acceptedtypes = options.acceptedtypes;
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this.clientid = options.clientid;
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this.maxbytes = options.maxbytes;
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this.areamaxbytes = options.areamaxbytes;
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this.itemid = options.itemid;
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this.author = options.author;
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this.container = this.Y.one('#'+options.containerid);
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if (options.filemanager) {
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// Needed to tell the filemanager to redraw when files uploaded
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// and to check how many files are already uploaded
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this.filemanager = options.filemanager;
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} else if (options.formcallback) {
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// Needed to tell the filepicker to update when a new
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// file is uploaded
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this.callback = options.formcallback;
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} else {
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if (M.cfg.developerdebug) {
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alert('dndupload: Need to define either options.filemanager or options.formcallback');
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}
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return;
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}
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this.init_events();
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this.init_page_events();
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},
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/**
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* Check the browser has the required functionality
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* @return true if browser supports drag/drop upload
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*/
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browser_supported: function() {
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if (typeof FileReader == 'undefined') {
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return false;
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}
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if (typeof FormData == 'undefined') {
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return false;
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}
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return true;
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},
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/**
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* Get upload repoistory from array of enabled repositories
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*
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* @param array repositories repository objects passed from filepicker
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* @param returns int id of upload repository or false if not found
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*/
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get_upload_repositoryid: function(repositories) {
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for (var i in repositories) {
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if (repositories[i].type == "upload") {
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return repositories[i].id;
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}
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}
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return false;
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},
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/**
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* Initialise drag events on node container, all events need
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* to be processed for drag and drop to work
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*/
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init_events: function() {
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this.Y.on('dragenter', this.drag_enter, this.container, this);
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this.Y.on('dragleave', this.drag_leave, this.container, this);
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this.Y.on('dragover', this.drag_over, this.container, this);
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this.Y.on('drop', this.drop, this.container, this);
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},
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/**
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* Initialise whole-page events (to show / hide the 'drop files here'
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* message)
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*/
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init_page_events: function() {
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this.Y.on('dragenter', this.drag_enter_page, 'body', this);
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this.Y.on('dragleave', this.drag_leave_page, 'body', this);
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},
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/**
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* Check if the filemanager / filepicker is disabled
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* @return bool - true if disabled
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*/
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is_disabled: function() {
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return (this.container.ancestor('.fitem.disabled') != null);
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},
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/**
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* Show the 'drop files here' message when file(s) are dragged
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* onto the page
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*/
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drag_enter_page: function(e) {
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if (this.is_disabled()) {
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return false;
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}
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if (!this.has_files(e)) {
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return false;
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}
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this.pageentercount++;
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if (this.pageentercount >= 2) {
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this.pageentercount = 2;
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return false;
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}
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this.show_drop_target();
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return false;
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},
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/**
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* Hide the 'drop files here' message when file(s) are dragged off
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* the page again
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*/
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drag_leave_page: function(e) {
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this.pageentercount--;
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if (this.pageentercount == 1) {
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return false;
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}
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this.pageentercount = 0;
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this.hide_drop_target();
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return false;
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},
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/**
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* Check if the drag contents are valid and then call
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* preventdefault / stoppropagation to let the browser know
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* we will handle this drag/drop
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*
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* @param e event object
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* @return boolean true if a valid file drag event
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*/
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check_drag: function(e) {
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if (this.is_disabled()) {
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return false;
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}
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if (!this.has_files(e)) {
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return false;
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}
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e.preventDefault();
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e.stopPropagation();
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return true;
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},
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/**
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* Handle a dragenter event, highlight the destination node
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* when a suitable drag event occurs
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*/
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drag_enter: function(e) {
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if (!this.check_drag(e)) {
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return true;
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}
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this.entercount++;
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if (this.entercount >= 2) {
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this.entercount = 2; // Just moved over a child element - nothing to do
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return false;
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}
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// These lines are needed if the user has dragged something directly
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// from application onto the 'fileupload' box, without crossing another
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// part of the page first
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this.pageentercount = 2;
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this.show_drop_target();
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this.show_upload_ready();
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return false;
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},
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/**
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* Handle a dragleave event, Remove the highlight if dragged from
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* node
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*/
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drag_leave: function(e) {
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if (!this.check_drag(e)) {
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return true;
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}
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this.entercount--;
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if (this.entercount == 1) {
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return false; // Just moved over a child element - nothing to do
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}
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this.entercount = 0;
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this.hide_upload_ready();
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return false;
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},
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/**
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* Handle a dragover event. Required to intercept to prevent the browser from
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* handling the drag and drop event as normal
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*/
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drag_over: function(e) {
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if (!this.check_drag(e)) {
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return true;
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}
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return false;
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},
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/**
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* Handle a drop event. Remove the highlight and then upload each
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* of the files (until we reach the file limit, or run out of files)
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*/
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drop: function(e) {
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if (!this.check_drag(e, true)) {
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return true;
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}
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this.entercount = 0;
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this.pageentercount = 0;
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this.hide_upload_ready();
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this.hide_drop_target();
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var files = e._event.dataTransfer.files;
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if (this.filemanager) {
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var options = {
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files: files,
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options: this.options,
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repositoryid: this.repositoryid,
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currentfilecount: this.filemanager.filecount, // All files uploaded.
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currentfiles: this.filemanager.options.list, // Only the current folder.
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callback: Y.bind('update_filemanager', this),
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callbackprogress: Y.bind('update_progress', this),
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callbackcancel:Y.bind('hide_progress', this)
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};
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this.clear_progress();
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this.show_progress();
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var uploader = new dnduploader(options);
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uploader.start_upload();
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} else {
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if (files.length >= 1) {
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options = {
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files:[files[0]],
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options: this.options,
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repositoryid: this.repositoryid,
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currentfilecount: 0,
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currentfiles: [],
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callback: Y.bind('update_filemanager', this),
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callbackprogress: Y.bind('update_progress', this),
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callbackcancel:Y.bind('hide_progress', this)
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};
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this.clear_progress();
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this.show_progress();
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uploader = new dnduploader(options);
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uploader.start_upload();
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}
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}
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return false;
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},
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/**
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* Check to see if the drag event has any files in it
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*
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* @param e event object
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* @return boolean true if event has files
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*/
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has_files: function(e) {
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// In some browsers, dataTransfer.types may be null for a
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// 'dragover' event, so ensure a valid Array is always
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// inspected.
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var types = e._event.dataTransfer.types || [];
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for (var i=0; i<types.length; i++) {
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if (types[i] == 'Files') {
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return true;
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}
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}
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return false;
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},
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/**
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* Highlight the area where files could be dropped
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*/
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show_drop_target: function() {
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this.container.addClass('dndupload-ready');
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},
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hide_drop_target: function() {
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this.container.removeClass('dndupload-ready');
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},
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/**
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* Highlight the destination node (ready to drop)
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*/
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show_upload_ready: function() {
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this.container.addClass('dndupload-over');
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},
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/**
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* Remove highlight on destination node
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*/
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hide_upload_ready: function() {
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this.container.removeClass('dndupload-over');
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},
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/**
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* Show the element showing the upload in progress
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*/
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show_progress: function() {
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this.container.addClass('dndupload-inprogress');
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},
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/**
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* Hide the element showing upload in progress
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*/
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hide_progress: function() {
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this.container.removeClass('dndupload-inprogress');
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},
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/**
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* Tell the attached filemanager element (if any) to refresh on file
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* upload
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*/
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update_filemanager: function(params) {
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this.hide_progress();
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if (this.filemanager) {
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// update the filemanager that we've uploaded the files
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this.filemanager.filepicker_callback();
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} else if (this.callback) {
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this.callback(params);
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}
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},
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/**
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* Clear the current progress bars
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*/
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clear_progress: function() {
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var filename;
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for (filename in this.progressbars) {
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if (this.progressbars.hasOwnProperty(filename)) {
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this.progressbars[filename].progressouter.remove(true);
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delete this.progressbars[filename];
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}
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}
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},
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/**
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* Show the current progress of the uploaded file
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*/
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update_progress: function(filename, percent) {
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if (this.progressbars[filename] === undefined) {
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var dispfilename = filename;
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if (dispfilename.length > 50) {
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dispfilename = dispfilename.substr(0, 49)+'…';
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}
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var progressouter = this.container.create('<span>'+dispfilename+': <span class="dndupload-progress-outer"><span class="dndupload-progress-inner"> </span></span><br /></span>');
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var progressinner = progressouter.one('.dndupload-progress-inner');
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var progresscontainer = this.container.one('.dndupload-progressbars');
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progresscontainer.appendChild(progressouter);
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this.progressbars[filename] = {
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progressouter: progressouter,
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progressinner: progressinner
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};
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}
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this.progressbars[filename].progressinner.setStyle('width', percent + '%');
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}
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};
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var dnduploader = function(options) {
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dnduploader.superclass.constructor.apply(this, arguments);
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};
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Y.extend(dnduploader, Y.Base, {
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// The URL to send the upload data to.
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api: M.cfg.wwwroot+'/repository/repository_ajax.php',
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// Options passed into the filemanager/filepicker element.
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options: {},
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// The function to call when all uploads complete.
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callback: null,
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// The function to call as the upload progresses
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callbackprogress: null,
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// The function to call if the upload is cancelled
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callbackcancel: null,
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// The list of files dropped onto the element.
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files: null,
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// The ID of the 'upload' repository.
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repositoryid: 0,
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// Array of files already in the current folder (to check for name clashes).
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currentfiles: null,
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// Total number of files already uploaded (to check for exceeding limits).
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currentfilecount: 0,
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// Total size of the files present in the area.
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currentareasize: 0,
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// The list of files to upload.
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uploadqueue: [],
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// This list of files with name clashes.
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renamequeue: [],
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// Size of the current queue.
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queuesize: 0,
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// Set to true if the user has clicked on 'overwrite all'.
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overwriteall: false,
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// Set to true if the user has clicked on 'rename all'.
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renameall: false,
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/**
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* Initialise the settings for the dnduploader
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* @param object params - includes:
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* options (copied from the filepicker / filemanager)
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* repositoryid - ID of the upload repository
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* callback - the function to call when uploads are complete
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* currentfiles - the list of files already in the current folder in the filemanager
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* currentfilecount - the total files already in the filemanager
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* files - the list of files to upload
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* @return void
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*/
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initializer: function(params) {
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this.options = params.options;
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this.repositoryid = params.repositoryid;
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this.callback = params.callback;
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this.callbackprogress = params.callbackprogress;
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this.callbackcancel = params.callbackcancel;
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this.currentfiles = params.currentfiles;
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this.currentfilecount = params.currentfilecount;
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this.currentareasize = 0;
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// Retrieve the current size of the area.
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for (var i = 0; i < this.currentfiles.length; i++) {
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this.currentareasize += this.currentfiles[i].size;
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};
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if (!this.initialise_queue(params.files)) {
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if (this.callbackcancel) {
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this.callbackcancel();
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}
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}
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},
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/**
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* Entry point for starting the upload process (starts by processing any
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* renames needed)
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*/
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start_upload: function() {
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this.process_renames(); // Automatically calls 'do_upload' once renames complete.
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},
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/**
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* Display a message in a popup
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* @param string msg - the message to display
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* @param string type - 'error' or 'info'
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*/
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print_msg: function(msg, type) {
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var header = M.str.moodle.error;
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if (type != 'error') {
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type = 'info'; // one of only two types excepted
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header = M.str.moodle.info;
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}
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if (!this.msg_dlg) {
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this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
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this.msg_dlg_node.generateID();
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this.msg_dlg = new Y.Panel({
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srcNode : this.msg_dlg_node,
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|
zIndex : 8000,
|
|
centered : true,
|
|
modal : true,
|
|
visible : false,
|
|
render : true
|
|
});
|
|
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.
|
|
this.print_msg(M.util.get_string('maxbytesforfile', 'moodle', files[i].name), '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;
|
|
},
|
|
|
|
/**
|
|
* 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.currentfilecount++;
|
|
}
|
|
// The value for "unlimited files" is -1, so 0 should mean 0.
|
|
if (this.options.maxfiles >= 0 && this.currentfilecount > 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;
|
|
},
|
|
|
|
/**
|
|
* 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.
|
|
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) {
|
|
this.add_to_upload_queue(file, file.name, true);
|
|
this.process_renames();
|
|
return;
|
|
}
|
|
if (this.renameall) {
|
|
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.createWithFilesSkin(M.core_filepicker.templates.processexistingfilemultiple);
|
|
} else {
|
|
process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
|
|
}
|
|
var node = process_dlg_node;
|
|
node.generateID();
|
|
var process_dlg = new Y.Panel({
|
|
srcNode : node,
|
|
headerContent: M.str.repository.fileexistsdialogheader,
|
|
zIndex : 8000,
|
|
centered : true,
|
|
modal : true,
|
|
visible : false,
|
|
render : true,
|
|
buttons : {}
|
|
});
|
|
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();
|
|
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();
|
|
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) {
|
|
self.callbackcancel();
|
|
}
|
|
}, this);
|
|
|
|
// When we are at the file limit, only allow 'overwrite', not rename.
|
|
if (this.currentfilecount == 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;
|
|
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;
|
|
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')) {
|
|
process_dlg.destroy(true);
|
|
}
|
|
});
|
|
|
|
process_dlg.show();
|
|
},
|
|
|
|
/**
|
|
* 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 {
|
|
this.uploadfinished(lastresult);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Run the callback to the filemanager/filepicker
|
|
*/
|
|
uploadfinished: function(lastresult) {
|
|
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;
|
|
|
|
// 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) {
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
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('action', 'upload');
|
|
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);
|
|
}
|
|
|
|
// 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
|
|
xhr.open("POST", this.api, true);
|
|
xhr.send(formdata);
|
|
return true;
|
|
}
|
|
});
|
|
|
|
dnduploadhelper.init(Y, options);
|
|
};
|