Enable onlyoffice reconnection

www/common/onlyoffice/app-oo.less

@@ -62,6 +62,15 @@ body.cp-app-sheet, body.cp-app-oodoc, body.cp-app-ooslide {
         background-color: lightgrey;
         display: flex;
         flex-flow: column;
+        position: relative;
+    }
+    #cp-app-oo-offline {
+        position: absolute;
+        top: 0;
+        bottom: 0;
+        right: 0;
+        left: 0;
+        background-color: rgba(255,255,255,0.5);
     }
     #ooframe {
         flex: 1;

www/common/onlyoffice/inner.js

@@ -601,12 +601,6 @@ define([
             });
         };
         var handleChanges = function (obj, send) {
-            // Allow the changes
-            send({
-                type: "unSaveLock",
-                index: ooChannel.cpIndex,
-                time: +new Date()
-            });
             // Send the changes
             rtChannel.sendMsg({
                 type: "saveChanges",
@@ -616,6 +610,15 @@ define([
                 excelAdditionalInfo: null
             }, null, function (err, hash) {
                 if (err) { return void console.error(err); }
+                // Call unSaveLock to tell onlyoffice that the patch was sent.
+                // It will allow you to make changes to another cell.
+                // If there is an error and unSaveLock is not called, onlyoffice
+                // will try to send the patch again
+                send({
+                    type: "unSaveLock",
+                    index: ooChannel.cpIndex,
+                    time: +new Date()
+                });
                 // Increment index and update latest hash
                 ooChannel.cpIndex++;
                 ooChannel.lastHash = hash;
@@ -748,7 +751,9 @@ define([
                 },
                 "events": {
                     "onAppReady": function(/*evt*/) {
-                        var $tb = $('iframe[name="frameEditor"]').contents().find('head');
+                        var $iframe = $('iframe[name="frameEditor"]').contents();
+                        $iframe.prop('tabindex', '-1');
+                        var $tb = $iframe.find('head');
                         var css = // Old OO
                                   '#id-toolbar-full .toolbar-group:nth-child(2), #id-toolbar-full .separator:nth-child(3) { display: none; }' +
                                   '#fm-btn-save { display: none !important; }' +
@@ -1301,10 +1306,13 @@ define([
         };
 
         var setEditable = function (state) {
-            if (!state) {
+            $('#cp-app-oo-editor').find('#cp-app-oo-offline').remove();;
             try {
-                    window.frames[0].editor.setViewModeDisconnect(true);
+                window.frames[0].editor.asc_setViewMode(!state);
+                //window.frames[0].editor.setViewModeDisconnect(true);
             } catch (e) {}
+            if (!state) {
+                $('#cp-app-oo-editor').append(h('div#cp-app-oo-offline'));
             }
             debug(state);
         };
@@ -1569,10 +1577,11 @@ define([
             setEditable(info.state);
             if (info.state) {
                 UI.findOKButton().click();
-                UI.confirm(Messages.oo_reconnect, function (yes) {
+                offline = false;
+                /*UI.confirm(Messages.oo_reconnect, function (yes) {
                     if (!yes) { return; }
                     common.gotoURL();
-                });
+                });*/
             } else {
                 offline = true;
                 UI.findOKButton().click();

www/common/outer/onlyoffice.js

@@ -53,7 +53,7 @@ define([
             // all our client IDs.
             if (chan.clients) {
                 chan.clients.forEach(function (cl) {
-                    if (ctx.clients[cl] && !ctx.clients[cl].id) {
+                    if (ctx.clients[cl]) {
                         ctx.clients[cl].id = wc.myID + '-' + cl;
                     }
                 });
@@ -189,15 +189,22 @@ define([
         if (!c) { return void cb({ error: 'NOT_IN_CHANNEL' }); }
         var chan = ctx.channels[c.channel];
         if (!chan) { return void cb({ error: 'INVALID_CHANNEL' }); }
-        if (data.isCp) {
+        // Prepare the callback: broadcast the message to the other local tabs
-            return void chan.sendMsg(data.isCp, cb);
+        // if the message is sent
-        }
+        var _cb = function (obj) {
-        chan.sendMsg(data.msg, cb);
+            if (obj && obj.error) { return void cb(obj); }
             ctx.emit('MESSAGE', {
                 msg: data.msg
             }, chan.clients.filter(function (cl) {
                 return cl !== clientId;
             }));
+            cb();
+        };
+        // Send the message
+        if (data.isCp) {
+            return void chan.sendMsg(data.isCp, _cb);
+        }
+        chan.sendMsg(data.msg, _cb);
     };
 
     var reencrypt = function (ctx, data, cId, cb) {