[FIX] mail: don't show media preview on guest page if not meeting

closes odoo/odoo#77939

X-original-commit: 51eb2c9d
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>

addons/mail/static/src/components/welcome_view/welcome_view.xml

@@ -4,10 +4,13 @@
     <t t-name="mail.WelcomeView" owl="1">
         <div class="o_WelcomeView h-100 d-flex flex-column justify-content-center align-items-center bg-light">
             <t t-if="welcomeView">
-                <h1 class="font-weight-light">You've been invited to a meeting!</h1>
+                <h1 class="font-weight-light">
+                    <span t-if="welcomeView.mediaPreview">You've been invited to a meeting!</span>
+                    <span t-if="!welcomeView.mediaPreview">You've been invited to a chat!</span>
+                </h1>
                 <h2 class="m-5" t-esc="messaging.companyName"/>
                 <div class="d-flex justify-content-center">
-                    <MediaPreview class="mr-5" localId="welcomeView.mediaPreview.localId"/>
+                    <MediaPreview t-if="welcomeView.mediaPreview" class="mr-5" localId="welcomeView.mediaPreview.localId"/>
                     <div class="d-flex flex-column justify-content-center">
                         <t t-if="messaging.currentGuest">
                             <label class="o_WelcomeView_guestNameInputLabel text-center" t-att-for="welcomeView.guestNameInputUniqueId">What's your name?</label>

addons/mail/static/src/models/discuss_public_view/discuss_public_view.js

@@ -49,7 +49,7 @@ function factory(dependencies) {
                     pendingGuestName: this.messaging.currentGuest && this.messaging.currentGuest.name,
                 }),
             });
-            if (this.channel.defaultDisplayMode === 'video_full_screen') {
+            if (this.welcomeView.mediaPreview) {
                 this.welcomeView.mediaPreview.enableMicrophone();
                 this.welcomeView.mediaPreview.enableVideo();
             }

addons/mail/static/src/models/welcome_view/welcome_view.js

@@ -2,7 +2,7 @@
 
 import { registerNewModel } from '@mail/model/model_core';
 import { attr, one2one } from '@mail/model/model_field';
-import { insertAndReplace } from '@mail/model/model_field_command';
+import { clear, insertAndReplace } from '@mail/model/model_field_command';
 
 function factory(dependencies) {
 
@@ -117,6 +117,16 @@ function factory(dependencies) {
             return Boolean(this.messaging.currentGuest && this.pendingGuestName.trim() === '');
         }
 
+        /**
+         * @private
+         * @returns {FieldCommand}
+         */
+        _computeMediaPreview() {
+            return (this.channel && this.channel.defaultDisplayMode === 'video_full_screen')
+                ? insertAndReplace()
+                : clear();
+        }
+
         /**
          * @private
          */
@@ -205,10 +215,9 @@ function factory(dependencies) {
          * States the media preview embedded in this welcome view.
          */
         mediaPreview: one2one('mail.media_preview', {
-            default: insertAndReplace(),
+            compute: '_computeMediaPreview',
             isCausal: true,
             readonly: true,
-            required: true,
         }),
         /**
          * States the name the guest had when landing on the welcome view.