[pbs-devel] [PATCH xtermjs v3 4/4] ui: prevent accidental closing of terminal window
Dominik Csapak
d.csapak at proxmox.com
Tue Jul 21 11:00:48 CEST 2020
this prevents closing the window e.g. when pressing ctrl+w
most browsers have a function to block a website from doing that,
so users that do not want that, simply have to click that option
also, the message will (at least in chrome) not be displayed,
instead a fixed message will appear
Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
---
src/www/main.js | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/src/www/main.js b/src/www/main.js
index bb71812..39aef11 100644
--- a/src/www/main.js
+++ b/src/www/main.js
@@ -35,6 +35,7 @@ function updateState(newState, msg, code) {
severity = severities.warning;
break;
case states.connected:
+ window.onbeforeunload = windowUnload;
message = "Connected";
break;
case states.disconnecting:
@@ -48,6 +49,7 @@ function updateState(newState, msg, code) {
severity = severities.warning;
break;
case states.disconnected:
+ window.onbeforeunload = undefined;
switch (state) {
case states.start:
case states.connecting:
@@ -143,7 +145,6 @@ function createTerminal() {
socket.onopen = runTerminal;
socket.onclose = tryReconnect;
socket.onerror = tryReconnect;
- window.onbeforeunload = stopTerminal;
updateState(states.connecting);
},
failure: function(msg) {
@@ -303,6 +304,17 @@ function clearEvents() {
term.onData(() => {});
}
+function windowUnload(e) {
+ let message = "Are you sure you want to leave this page?";
+
+ e = e || window.event;
+ if (e) {
+ e.returnValue = message;
+ }
+
+ return message;
+}
+
function stopTerminal(event) {
event = event || {};
clearEvents();
--
2.20.1
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