[IMP] web_editor, website, *: use new color names

*: mass_mailing, website_blog, website_forum, website_hr_recruitment

Deprecate alpha, beta, gamma, delta and espilon color names and now use
a new color system: o-color-x, with x from 1 to 5.

This will allow to review the colors of all themes to have nice visuals
for the new color combinations classes, without breaking the current
uses of bg-alpha, alert-delta, etc in current websites of customers
(by keeping the old color and classes for compatibility).

This will also allow to uniformize all themes under the same conventions
to enforce BS color override:
- o-color-1 used as primary (as before, for alpha)
- o-color-2 used as secondary (as before, for beta)

Before, some themes were not following the 2 guidelines. The users
using those themes will simply have the possibility to choose o-color-1
and o-color-2 colors accordingly to restore their website without
breaking the new system features.

Another change is that those colors are defined through color palettes
and not theme color palettes. This will avoid them to generate automatic
bootstrap classes which we don't want (alert, btn) and generate the one
we want by ourself.

Note: for mass mailing, the colors and classes also have been renamed
but the system stays unchanged.

Part of https://github.com/odoo/odoo/pull/45856
task-2197038

5 files changed, 57 insertions, 43 deletions

diff --git a/addons/web_editor/static/src/scss/13_0_color_system_support_primary_variables.scss b/addons/web_editor/static/src/scss/13_0_color_system_support_primary_variables.scss
new file mode 100644
index 00000000000..4fb5d42c0da
--- /dev/null
+++ b/addons/web_editor/static/src/scss/13_0_color_system_support_primary_variables.scss
@@ -0,0 +1 @@
+$o-support-13-0-color-system: true;
diff --git a/addons/web_editor/static/src/scss/secondary_variables.scss b/addons/web_editor/static/src/scss/secondary_variables.scss
index 142cf2438d9..6d975a1fecd 100644
--- a/addons/web_editor/static/src/scss/secondary_variables.scss
+++ b/addons/web_editor/static/src/scss/secondary_variables.scss
@@ -24,13 +24,16 @@ $o-color-palette: map-merge($o-base-color-palette, o-map-omit($o-color-palette))
 
 // Theme colors
 $o-theme-color-palette: nth($o-theme-color-palettes, $o-theme-color-palette-number) !default;
-$-main-color: map-get($o-theme-color-palette, 'alpha');
+@if not $o-support-13-0-color-system {
+    $o-theme-color-palette: map-remove($o-theme-color-palette, 'alpha', 'beta', 'gamma', 'delta', 'epsilon');
+}
+$-main-color: map-get($o-color-palette, 'o-color-1');
 $-main-color-lightness: lightness($-main-color);
 $o-theme-color-palette: map-merge((
-    // alpha and beta colors are used to override primary and secondary BS4
+    // color 1 and 2 are used to override primary and secondary BS4
     // colors by default, so that theme colors affect the default Odoo layouts
     'primary': $-main-color,
-    'secondary': map-get($o-theme-color-palette, 'beta'),
+    'secondary': map-get($o-color-palette, 'o-color-2'),
 
     // BS light and dark colors are not used for any BS component, just
     // for color utilities. By default, we set them to a very light and
diff --git a/addons/web_editor/static/src/scss/web_editor.backend.scss b/addons/web_editor/static/src/scss/web_editor.backend.scss
index c0355ff6d9c..370baed9db9 100644
--- a/addons/web_editor/static/src/scss/web_editor.backend.scss
+++ b/addons/web_editor/static/src/scss/web_editor.backend.scss
@@ -42,24 +42,6 @@
     }
 }
 
-// FIX (to improve in next versions)
-// ---------------------------------
-// The web_editor.colorpicker defines a series of color buttons which toggle the bg-* and text-* classes.
-// The problem is that themes can define new buttons whose bg-* and text-* classes only exist in the frontend.
-// So these buttons should not be displayed in the backend. Only solution for the current implementation is
-// to add this ugly rule (in this backend file) which hides every button and redisplayed the default ones.
-.note-editor {
-    .colorpicker .o_colorpicker_section > button {
-        display: none;
-
-        &[data-color="alpha"], &[data-color="beta"], &[data-color="gamma"], &[data-color="delta"], &[data-color="epsilon"],
-        &[data-color="white"], &[data-color="gray-lighter"], &[data-color="gray-light"], &[data-color="gray"], &[data-color="gray-dark"], &[data-color="gray-darker"], &[data-color="black"],
-        &[data-color="primary"], &[data-color="success"], &[data-color="info"], &[data-color="warning"], &[data-color="danger"] {
-            display: block;
-        }
-    }
-}
-
 .o_field_widgetTextHtml_fullscreen {
     .oe_form_field_html.o_form_fullscreen_ancestor iframe {
         position: absolute !important;
diff --git a/addons/web_editor/static/src/scss/web_editor.common.scss b/addons/web_editor/static/src/scss/web_editor.common.scss
index 89fde8cba22..0eb6ee9fd1b 100644
--- a/addons/web_editor/static/src/scss/web_editor.common.scss
+++ b/addons/web_editor/static/src/scss/web_editor.common.scss
@@ -641,3 +641,12 @@ blockquote {
         }
     }
 }
+
+// Extend bootstrap to create background and text utilities for some colors
+// outside of the $theme-colors too (but not btn-, alert-, etc).
+@for $index from 1 through 5 {
+    $-color-name: 'o-color-#{$index}';
+    $-color: color($-color-name);
+    @include bg-variant(".bg-#{$-color-name}", $-color);
+    @include text-emphasis-variant(".text-#{$-color-name}", $-color);
+}
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 3be0284d254..ab240268f62 100644
--- a/addons/web_editor/static/src/scss/web_editor.variables.scss
+++ b/addons/web_editor/static/src/scss/web_editor.variables.scss
@@ -2,6 +2,8 @@
 /// This files regroups the variables and mixins which are specific to the editor.
 ///
 
+$o-support-13-0-color-system: false !default;
+
 $o-we-font-family: Roboto, 'Montserrat', 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif !default;
 
 $o-we-font-size: 13px;
@@ -310,21 +312,37 @@ $o-we-toolbar-height: 32px;
 // palette once selected to ensure it works.
 
 // Colors
-$o-base-color-palette: () !default;
+$o-base-color-palette: (
+    'o-color-1': transparent,
+    'o-color-2': transparent,
+    'o-color-3': transparent,
+    'o-color-4': transparent,
+    'o-color-5': transparent,
+) !default;
 $o-color-palettes: (
-    (),
+    (
+        'o-color-1': $o-enterprise-primary-color,
+        'o-color-2': $o-enterprise-color,
+        'o-color-3': #F6F6F6,
+        'o-color-4': #FFFFFF,
+        'o-color-5': #383E45,
+    ),
+    (
+        'o-color-1': #337ab7,
+        'o-color-2': #e9ecef,
+        'o-color-3': #F8F9FA,
+        'o-color-4': #FFFFFF,
+        'o-color-5': #343a40,
+    ),
 ) !default;
 $o-color-palette-number: 1 !default;
 
 // Theme colors
-$o-base-theme-color-palette: (
-    'alpha': white,
-    'beta': white,
-    'gamma': white,
-    'delta': white,
-    'epsilon': white,
-) !default;
+$o-base-theme-color-palette: () !default;
 $o-theme-color-palettes: (
+    // alpha -> epsilon are old color names kept for compatibility.
+    // They should not be used in the code base anymore and ideally they will
+    // not generate any classes for >= 13.4 databases.
     (
         'alpha': $o-enterprise-primary-color,
         'beta': $o-enterprise-color,
@@ -332,6 +350,7 @@ $o-theme-color-palettes: (
         'delta': #5B899E,
         'epsilon': #E46F78,
     ),
+    (),
 ) !default;
 $o-theme-color-palette-number: 1 !default;
 
@@ -366,7 +385,7 @@ $o-transparent-grays: (
     'white-85': rgba(white, 0.85),
 ) !default;
 $o-gray-color-palettes: (
-    (),
+    (), (),
 ) !default;
 $o-gray-color-palette-number: 1 !default;
 
@@ -389,26 +408,26 @@ $o-base-color-combination: (
 $o-color-combinations-presets: (
     (
         (
-            // See $o-base-color-combination
+            'bg': 'o-color-4',
         ),
         (
-            'bg': 'gamma',
-            'headings': 'alpha',
+            'bg': 'o-color-3',
+            'headings': 'o-color-1',
         ),
         (
-            'bg': 'beta',
-            'btn-secondary': 'gamma',
+            'bg': 'o-color-2',
+            'btn-secondary': 'o-color-3',
         ),
         (
-            'bg': 'alpha',
-            'link': 'epsilon',
-            'btn-primary': 'epsilon',
-            'btn-secondary': 'gamma',
+            'bg': 'o-color-1',
+            'link': 'o-color-5',
+            'btn-primary': 'o-color-5',
+            'btn-secondary': 'o-color-3',
         ),
         (
-            'bg': 'epsilon',
-            'headings': 'delta',
-            'btn-secondary': 'gamma',
+            'bg': 'o-color-5',
+            'headings': 'o-color-4',
+            'btn-secondary': 'o-color-3',
         ),
     ),
 ) !default;