[IMP] add user switch detection and rename module

web_switch_context_warning/static/src/js/switch_context_warning.js

@@ -0,0 +1,49 @@
+odoo.define('web_switch_context_warning.widget', function (require) {
+    'use strict';
+
+    var Widget = require('web.Widget');
+    var UserMenu = require('web.UserMenu');
+    var session = require('web.session');
+    // Show a big banner in the top of the page if the context has been
+    // changed in another tab or window (in the same browser)
+
+    if (!window.SharedWorker) {
+        // Not supported
+        return;
+    }
+    var SwitchCompanyWarningWidget = Widget.extend({
+        template:'web_switch_context_warning.warningWidget',
+        init: function () {
+            this._super();
+            var self = this;
+            var w = new SharedWorker('/web_switch_context_warning/static/src/js/switch_context_warning_worker.js');
+            w.port.addEventListener('message', function (msg) {
+                if (msg.data.type !== 'newCtx') {
+                    return;
+                }
+                if (msg.data.newCtx === self.generateSignature()) {
+                    self.$el.hide();
+                } else {
+                    self.$el.show();
+                }
+            });
+            w.port.start();
+            w.port.postMessage(this.generateSignature());
+        },
+        generateSignature: function () {
+            return [session.uid, session.company_id, session.db].join();
+        },
+    });
+
+    UserMenu.include({
+        init: function (parent) {
+            this._super(parent);
+            var switchCompanyWarning = new SwitchCompanyWarningWidget();
+            switchCompanyWarning.insertAfter('.o_main_navbar');
+        },
+
+    });
+
+    return SwitchCompanyWarningWidget;
+});
+

web_switch_context_warning/static/src/js/switch_context_warning_worker.js

@@ -0,0 +1,23 @@
+// Show a big banner in the top of the page if the context has been
+// Changed in another tab or window (in the same browser)
+
+var con = [];
+var lastCtx = null;
+
+addEventListener("connect", function (ee) {
+    "use strict";
+
+    var port = ee.ports[0];
+    con.push(port);
+
+    port.onmessage = function (e) {
+        var newCtx = e.data;
+
+        if (lastCtx && newCtx !== lastCtx) {
+            con.forEach(function (eport) {
+                eport.postMessage({type: "newCtx", "newCtx": newCtx, "lastCtx": lastCtx});
+            });
+        }
+        lastCtx = newCtx;
+    };
+}, false);

web_switch_context_warning/static/src/xml/switch_context_warning.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<template>
+    <t t-name="web_switch_context_warning.warningWidget">
+        <div class="container-fluid bg-warning" style="text-align: center; display:none;padding-top:20px;padding-bottom:5px">
+            <h3>You switched to a different user, company or database with another tab or window</h3>
+            <p><button onclick="location.reload(true);" class="btn">Reload</button> to refresh your session</p>
+        </div>
+    </t>
+</template>