[FIX] web_editor, *: review assets organisation

* mass_mailing, point_of_sale, website

- Lib files were included twice
- Variables files were split but added multiple times in the same assets
  bundle
- Useless assets templates were defined or split
- ...

Part of https://github.com/odoo/odoo/pull/36068
Related to task-1942370

7 files changed, 51 insertions, 66 deletions

diff --git a/addons/mass_mailing/views/assets.xml b/addons/mass_mailing/views/assets.xml
index d2645ef6c14..6143a5bd602 100644
--- a/addons/mass_mailing/views/assets.xml
+++ b/addons/mass_mailing/views/assets.xml
@@ -24,9 +24,7 @@
     </template>
 
     <template id="assets_mail_themes_edition"> <!-- maybe to remove and convert into a field dumy with attr invisible if the template is not selected -->
-        <t t-call="web._assets_helpers">
-            <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_variables.scss"/>
-        </t>
+        <t t-call="web._assets_helpers"/>
         <link rel="stylesheet" type="text/scss" href="/mass_mailing/static/src/scss/mass_mailing.ui.scss"/>
         <link rel="stylesheet" type="text/scss" href="/web/static/src/scss/webclient.scss"/>
     </template>
diff --git a/addons/point_of_sale/views/pos_templates.xml b/addons/point_of_sale/views/pos_templates.xml
index bc555a2ab6d..5ff4b1f1a04 100644
--- a/addons/point_of_sale/views/pos_templates.xml
+++ b/addons/point_of_sale/views/pos_templates.xml
@@ -75,7 +75,7 @@
     </script>
 </template>
 
-<template id="pos_editor_assets" inherit_id="web_editor.wysiwyg_snippets">
+<template id="pos_editor_assets" inherit_id="web_editor.assets_wysiwyg">
     <xpath expr="//script[last()]" position="after">
         <script type="text/javascript" src="/point_of_sale/static/src/js/pos.web_editor.js"/>
     </xpath>
diff --git a/addons/web_editor/static/src/js/wysiwyg/wysiwyg_iframe.js b/addons/web_editor/static/src/js/wysiwyg/wysiwyg_iframe.js
index 64b7c6a8f8c..c0709a2c90e 100644
--- a/addons/web_editor/static/src/js/wysiwyg/wysiwyg_iframe.js
+++ b/addons/web_editor/static/src/js/wysiwyg/wysiwyg_iframe.js
@@ -23,9 +23,6 @@ Wysiwyg.include({
     init: function (parent, options) {
         this._super.apply(this, arguments);
         if (this.options.inIframe) {
-            if (!this.options.iframeCssAssets) {
-                this.options.iframeCssAssets = 'web_editor.wysiwyg_iframe_css_assets';
-            }
             this._onUpdateIframeId = 'onLoad_' + this.id;
         }
     },
@@ -133,4 +130,4 @@ Wysiwyg.include({
     },
 });
 
-});
\ No newline at end of file
+});
diff --git a/addons/web_editor/static/src/scss/web_editor.variables.scss b/addons/web_editor/static/src/scss/web_editor.variables.scss
index e317fe7616b..fd821c547c2 100644
--- a/addons/web_editor/static/src/scss/web_editor.variables.scss
+++ b/addons/web_editor/static/src/scss/web_editor.variables.scss
@@ -48,6 +48,29 @@ $o-checklist-margin-left: 20px;
 $o-checklist-checkmark-width: 2px;
 $o-checklist-before-size: 13px;
 
+$o-wysiwyg-zindex: 1000;
+
+$o-wysiwyg-md-ease: cubic-bezier(0.19, 1, 0.22, 1) !default;
+
+$o-wysiwyg-font-family: Roboto,
+"Montserrat",
+"Segoe UI",
+"Helvetica Neue",
+Helvetica,
+Arial,
+sans-serif;
+
+$o-wysiwyg-toolbar-height: 32px;
+
+$o-wysiwyg-color: #212629 !default;
+$o-wysiwyg-color-light: #616669 !default;
+$o-wysiwyg-color-danger: #912629 !default;
+$o-wysiwyg-color-success: #219629 !default;
+$o-wysiwyg-bg-color: #f7f7f7 !default;
+$o-wysiwyg-bg-color-dark: #a7a7a7 !default;
+$o-wysiwyg-border-color: #a9a9a9 !default;
+
+
 // ============    'Preview' component Mixins    ===============
 // Create a "preview" work-area to edit/customize specific elements
 
@@ -66,6 +89,26 @@ $o-checklist-before-size: 13px;
     box-shadow: 0 0 15px 2px #000;
 }
 
+// Mixins for buttons with alpha bg-color
+@mixin o-alpha-button-preview {
+    position: relative;
+    z-index: 1;
+
+    // Place an overlay that inherit the button's bg-color.
+    &::before {
+        content: "";
+        @include o-position-absolute(0, 0, 0, 0);
+        background-color: inherit;
+    }
+
+    &::after {
+        content: "";
+        @include o-position-absolute(0, 0, 0, 0);
+        z-index: -1;
+        background-image: url('/web_editor/static/src/img/transparent.png');
+        background-size: 10px auto;
+    }
+}
 
 // ============    Preservation mixins    ===============
 // Used to preserve web_editor and website UI from themes customizations
diff --git a/addons/web_editor/static/src/scss/wysiwyg_variables.scss b/addons/web_editor/static/src/scss/wysiwyg_variables.scss
deleted file mode 100644
index 2beafe71681..00000000000
--- a/addons/web_editor/static/src/scss/wysiwyg_variables.scss
+++ /dev/null
@@ -1,42 +0,0 @@
-// Mixins for buttons with alpha bg-color
-@mixin o-alpha-button-preview {
-    position: relative;
-    z-index: 1;
-
-    // Place an overlay that inherit the button's bg-color.
-    &::before {
-        content: "";
-        @include o-position-absolute(0, 0, 0, 0);
-        background-color: inherit;
-    }
-
-    &::after {
-        content: "";
-        @include o-position-absolute(0, 0, 0, 0);
-        z-index: -1;
-        background-image: url('/web_editor/static/src/img/transparent.png');
-        background-size: 10px auto;
-    }
-}
-
-$o-wysiwyg-zindex: 1000;
-
-$o-wysiwyg-md-ease: cubic-bezier(0.19, 1, 0.22, 1) !default;
-
-$o-wysiwyg-font-family: Roboto,
-"Montserrat",
-"Segoe UI",
-"Helvetica Neue",
-Helvetica,
-Arial,
-sans-serif;
-
-$o-wysiwyg-toolbar-height: 32px;
-
-$o-wysiwyg-color: #212629 !default;
-$o-wysiwyg-color-light: #616669 !default;
-$o-wysiwyg-color-danger: #912629 !default;
-$o-wysiwyg-color-success: #219629 !default;
-$o-wysiwyg-bg-color: #f7f7f7 !default;
-$o-wysiwyg-bg-color-dark: #a7a7a7 !default;
-$o-wysiwyg-border-color: #a9a9a9 !default;
diff --git a/addons/web_editor/views/editor.xml b/addons/web_editor/views/editor.xml
index 8be49ec0c20..c16aca1485a 100644
--- a/addons/web_editor/views/editor.xml
+++ b/addons/web_editor/views/editor.xml
@@ -1,9 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
 
-<template id="wysiwyg_iframe_css_assets" name="CSS assets for wysiwyg iframe content">
-</template>
-
 <template id="wysiwyg_iframe_editor_assets" name="Editor assets for wysiwyg iframe content">
     <t t-call-assets="web.assets_common"/>
     <t t-call-assets="web.assets_frontend" t-js="false"/>
@@ -27,7 +24,6 @@
 
     <t t-call="web._assets_helpers">
         <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/bootstrap_overridden.scss"/>
-        <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_variables.scss"/>
     </t>
 
     <!-- integration -->
@@ -35,6 +31,8 @@
     <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg.scss"/>
     <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_iframe.scss"/>
 
+    <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_snippets.scss"/>
+
     <script type="text/javascript" src="/web_editor/static/src/js/wysiwyg/fonts.js"/>
     <script type="text/javascript" src="/web_editor/static/lib/nearest/jquery.nearest.js"/>
     <script type="text/javascript" src="/web_editor/static/src/js/base.js"/>
@@ -54,6 +52,9 @@
     <script type="text/javascript" src="/web_editor/static/src/js/wysiwyg/widgets/media_dialog.js"/>
     <script type="text/javascript" src="/web_editor/static/src/js/wysiwyg/widgets/widgets.js"/>
 
+    <script type="text/javascript" src="/web_editor/static/src/js/editor/snippets.editor.js"/>
+    <script type="text/javascript" src="/web_editor/static/src/js/editor/snippets.options.js"/>
+
     <!-- Launcher -->
 
     <script type="text/javascript" src="/web_editor/static/src/js/wysiwyg/wysiwyg.js"/>
@@ -113,20 +114,9 @@
     <link rel="stylesheet" type="text/css" href="/web_editor/static/lib/summernote/src/css/summernote.css"/>
 </template>
 
-<template id="wysiwyg_snippets" inherit_id="web_editor.assets_wysiwyg" name="Wysiwyg Editor additional snippets">
-    <xpath expr="script[@src='/web_editor/static/src/js/editor/rte.summernote.js']" position="after">
-        <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_snippets.scss"/>
-
-        <script type="text/javascript" src="/web_editor/static/lib/nearest/jquery.nearest.js"/>
-        <script type="text/javascript" src="/web_editor/static/src/js/editor/snippets.editor.js"/>
-        <script type="text/javascript" src="/web_editor/static/src/js/editor/snippets.options.js"/>
-    </xpath>
-</template>
-
 <template id="_assets_primary_variables" inherit_id="web._assets_primary_variables">
     <xpath expr="//link[last()]" position="after">
         <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/web_editor.variables.scss"/>
-        <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_variables.scss"/>
     </xpath>
 </template>
 
diff --git a/addons/website/views/website_templates.xml b/addons/website/views/website_templates.xml
index b89cb0721b4..56e7219ab12 100644
--- a/addons/website/views/website_templates.xml
+++ b/addons/website/views/website_templates.xml
@@ -91,7 +91,6 @@
 <template id="website.assets_wysiwyg" name="Website Editor Assets (used in website editor)">
     <t t-call="web._assets_helpers">
         <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/bootstrap_overridden.scss"/>
-        <link rel="stylesheet" type="text/scss" href="/web_editor/static/src/scss/wysiwyg_variables.scss"/>
     </t>
     <link rel="stylesheet" type="text/scss" href="/website/static/src/scss/website.wysiwyg.scss"/>
     <link rel="stylesheet" type="text/scss" href="/website/static/src/scss/website.editor.ui.scss"/>