Bug 31558: Fix image drag and drop in TinyMCE

Bug 26949 upgraded JS lib TinyMCE to 5.9.2

This version has a known issue on images drag and drop :
https://stackoverflow.com/questions/64782955/tinymce-inline-drag-and-drop-image-upload-not-working

Test plan :
1) Go to Tools > HTML customizations
2) Create a new entry (not using text editor)
3) Drag and drop an image
=> Without patch you see an error message from TinyMCE 'Dropped file type is not supported'
=> With patch : It works !

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit d0f09eaa6412eb83ebe7e17faa550628fa7e6cab)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/additional-contents.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/additional-contents.tt
index f996ec7..ba8b5ac 100644 (file)
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/additional-contents.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/additional-contents.tt
@@ -687,6 +687,7 @@
                    so We don't need to keep track of it */
                 let editor = tinyMCE.init({
                     branding : false,
+                    block_unsupported_drop : false,
                     content_css : "[% interface | html %]/[% theme | html %]/css/tinymce.css",
                     custom_elements:"style,link,~link",
                     extended_valid_elements:"style,link[href|rel]",