[MERGE] forward port branch 12.0 up to ff9ddfdacc9

1 files changed, 29 insertions, 0 deletions

diff --git a/addons/mass_mailing/static/src/scss/themes/theme_basic.scss b/addons/mass_mailing/static/src/scss/themes/theme_basic.scss
index 00f3a6304bc..d65ea077f5f 100644
--- a/addons/mass_mailing/static/src/scss/themes/theme_basic.scss
+++ b/addons/mass_mailing/static/src/scss/themes/theme_basic.scss
@@ -1,3 +1,32 @@
+
+// TODO remove in master
+// Themes scss have to use bg-variant and text-emphasis-variant mixins of BS4
+// to properly work. That use was introduced as a fix in 12.0... but the BS4
+// mixins are unavailable in the mailing assets. As a stable fix cannot
+// introduce static code which requires an XML update to not crash, the mixins
+// were duplicated here instead.
+@mixin bg-variant($parent, $color) {
+    #{$parent} {
+        background-color: $color !important;
+    }
+    a#{$parent},
+    button#{$parent} {
+        &:hover, &:focus {
+            background-color: darken($color, 10%) !important;
+        }
+    }
+}
+@mixin text-emphasis-variant($parent, $color) {
+    #{$parent} {
+        color: $color !important;
+    }
+    a#{$parent} {
+        &:hover, &:focus {
+            color: darken($color, 10%) !important;
+        }
+    }
+}
+
 // ============================
 // Mass Mailing "Theme Basic"
 // ============================