From 3f276ebc6296a28ca4ecd26a4f6b985cbb0d9e7b Mon Sep 17 00:00:00 2001
From: Troy Williams <troy.williams@learningworks.co.nz>
Date: Fri, 1 Nov 2019 14:41:03 +1300
Subject: [PATCH] Add check for -1 maxbytes value in JS.

---
 lib.php                    | 11 ++++++++---
 yui/dndupload/dndupload.js | 14 +++++++-------
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/lib.php b/lib.php
index a211df0..98f8643 100644
--- a/lib.php
+++ b/lib.php
@@ -400,9 +400,14 @@ function equella_dndupload_register() {
  */
 if (isset($CFG->equella_intercept_files) && (int)$CFG->equella_intercept_files == EQUELLA_CONFIG_INTERCEPT_META) {
     function equella_dndupload_register() {
-       global $PAGE;
-       $PAGE->requires->yui_module('moodle-mod_equella-dndupload', 'M.mod_equella.dndupload.init');
-       //$PAGE->requires->strings_for_js(array('dndupload_resource', 'dndupload_equella', 'copyright', 'description', 'keyword'), 'mod_equella');
+        global $PAGE, $CFG, $COURSE;
+        $config = [
+            [
+                'courseid' => $COURSE->id,
+                'maxbytes' => get_user_max_upload_file_size($PAGE->context, $CFG->maxbytes, $COURSE->maxbytes)
+            ]
+        ];
+        $PAGE->requires->yui_module('moodle-mod_equella-dndupload', 'M.mod_equella.dndupload.init', $config);
         return array('files' => array(
             array('extension' => '*', 'message' => get_string('dnduploadresourcemetadata', 'mod_equella'))
         ));
diff --git a/yui/dndupload/dndupload.js b/yui/dndupload/dndupload.js
index 93bd53b..7889d94 100644
--- a/yui/dndupload/dndupload.js
+++ b/yui/dndupload/dndupload.js
@@ -9,7 +9,6 @@ YUI.add('moodle-mod_equella-dndupload', function (Y) {
         hasOverriddenDndUpload: false,
         initializer: function (config) {
             var self = this;
-
             // Horribly nasty hack, since nothing in the dndupload chain fires any events we can listen for.
             // Since the dndupload module isn't there when we initialise, override its add_editing function
             // when we first see a "drop" on a section.
@@ -139,6 +138,12 @@ YUI.add('moodle-mod_equella-dndupload', function (Y) {
                                         return;
                                     }
 
+                                    // A -1 maxbytes value indicates unlimited.
+                                    if (file.size > this.maxbytes && this.maxbytes != -1) {
+                                        alert('The file ' + file.name + ' is too large and cannot be uploaded');
+                                        return;
+                                    }
+
                                     if (!module) {
                                         return;
                                     }
@@ -170,11 +175,6 @@ YUI.add('moodle-mod_equella-dndupload', function (Y) {
                             var xhr = new XMLHttpRequest();
                             var self = this;
 
-                            if (file.size > this.maxbytes) {
-                                alert("'" + file.name + "' " + M.util.get_string('filetoolarge', 'moodle'));
-                                return;
-                            }
-
                             // Add the file to the display
                             var resel = M.course_dndupload.add_resource_element(file.name, section, module);
 
@@ -247,7 +247,7 @@ YUI.add('moodle-mod_equella-dndupload', function (Y) {
     M.mod_equella = M.mod_equella || {};
     M.mod_equella.dndupload = M.mod_equella.dndupload || {};
     //M.mod_equella.dndupload.upload_file_with_meta = DndUpload.prototype.upload_file_with_meta;
-    M.mod_equella.dndupload.init = function (config) { // 'config' contains the parameter values
+    M.mod_equella.dndupload.init = function (config) {
         //console.log('I am in the javascript module, Yeah!');
         return new DndUpload(config); // 'config' contains the parameter values
     };