[openmeetings] 01/01: [OPENMEETINGS-1986] initial attempt to prevent browser back in the room

[solomax]

This is an automated email from the ASF dual-hosted git repository.

solomax pushed a commit to branch OPENMEETINGS-1986-backspace
in repository https://gitbox.apache.org/repos/asf/openmeetings.git

commit 79cc2908d7fa27628594f330733e486e73edf414
Author: Maxim Solodovnik <solomax...@gmail.com>
AuthorDate: Sat Mar 2 14:20:20 2019 +0700

    [OPENMEETINGS-1986] initial attempt to prevent browser back in the room
---
 .../java/org/apache/openmeetings/web/room/wb/raw-wb-area.js  | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/raw-wb-area.js
 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/raw-wb-area.js
index 2aac871..1a6ef27 100644
--- 
a/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/raw-wb-area.js
+++ 
b/openmeetings-web/src/main/java/org/apache/openmeetings/web/room/wb/raw-wb-area.js
@@ -88,6 +88,16 @@ var DrawWbArea = function() {
                }));
                return false;
        }
+       function _preventKeydown(e) {
+               if ('BODY' === e.target.tagName) {
+                       switch (e.which) {
+                               case 8:  // backspace
+                                       e.preventDefault();
+                                       e.stopImmediatePropagation();
+                                       return false;
+                       }
+               }
+       }
        function _deleteHandler(e) {
                if ('BODY' === e.target.tagName) {
                        switch (e.which) {
@@ -391,11 +401,13 @@ var DrawWbArea = function() {
        };
        self.initVideos = _initVideos;
        self.addDeleteHandler = function() {
+               $(window).keydown(_preventKeydown);
                if (role === PRESENTER) {
                        $(window).keyup(_deleteHandler);
                }
        };
        self.removeDeleteHandler = function() {
+               $(window).off('keydown', _preventKeydown);
                $(window).off('keyup', _deleteHandler);
        };
        self.updateAreaClass = function() {};