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-rw-r--r--public/js/index.js23
1 files changed, 23 insertions, 0 deletions
diff --git a/public/js/index.js b/public/js/index.js
index c90255e4..4068d59b 100644
--- a/public/js/index.js
+++ b/public/js/index.js
@@ -909,10 +909,13 @@ socket.on('permission', function (data) {
permission = data.permission;
checkPermission();
});
+var docmaxlength = null;
var otk = null;
var owner = null;
var permission = null;
socket.on('refresh', function (data) {
+ docmaxlength = data.docmaxlength;
+ editor.setOption("maxLength", docmaxlength);
otk = data.otk;
owner = data.owner;
permission = data.permission;
@@ -1435,10 +1438,30 @@ function buildCursor(user) {
}
//editor actions
+function enforceMaxLength(cm, change) {
+ var maxLength = cm.getOption("maxLength");
+ if (maxLength && change.update) {
+ var str = change.text.join("\n");
+ var delta = str.length - (cm.indexFromPos(change.to) - cm.indexFromPos(change.from));
+ if (delta <= 0) {
+ return false;
+ }
+ delta = cm.getValue().length + delta - maxLength;
+ if (delta > 0) {
+ str = str.substr(0, str.length - delta);
+ change.update(change.from, change.to, str.split("\n"));
+ return true;
+ }
+ }
+ return false;
+}
var ignoreEmitEvents = ['setValue', 'ignoreHistory'];
editor.on('beforeChange', function (cm, change) {
if (debug)
console.debug(change);
+ if (enforceMaxLength(cm, change)) {
+ $('.limit-modal').modal('show');
+ }
var isIgnoreEmitEvent = (ignoreEmitEvents.indexOf(change.origin) != -1);
if (!isIgnoreEmitEvent) {
switch (permission) {