refactor(theme-chalk): message css var & add getCssVarName (#6488)

* refactor(theme-chalk): message css var & add getCssVarName

* Update closable.vue

docs/examples/message/basic.vue

@@ -10,6 +10,7 @@ import { ElMessage } from 'element-plus'
 const open = () => {
   ElMessage('this is a message.')
 }
+
 const openVn = () => {
   ElMessage({
     message: h('p', null, [

packages/theme-chalk/src/check-tag.scss

@@ -1,7 +1,6 @@
 @use 'sass:map';
 
 @use 'mixins/mixins' as *;
-@use 'mixins/function' as *;
 @use 'common/var' as *;
 
 @include b(check-tag) {

packages/theme-chalk/src/common/var.scss

@@ -432,6 +432,7 @@ $message: map.merge(
   (
     'min-width': 380px,
     'bg-color': #edf2fc,
+    'border-color': var(--el-border-color-lighter),
     'padding': 15px 15px 15px 20px,
     'close-size': 16px,
     'close-icon-color': var(--el-text-color-placeholder),
@@ -1245,7 +1246,7 @@ $transition: map.merge(
 $transition-duration: () !default;
 $transition-duration: map.merge(
   (
-    'default': 0.3s,
+    '': 0.3s,
     'fast': 0.2s,
   ),
   $transition-duration

packages/theme-chalk/src/message.scss

@@ -9,21 +9,20 @@
 }
 
 @include b(message) {
-  min-width: var(--el-message-min-width);
+  min-width: getCssVar('message', 'min-width');
   box-sizing: border-box;
   border-radius: var(--el-border-radius-base);
   border-width: var(--el-border-width-base);
   border-style: var(--el-border-style-base);
-  border-color: var(--el-border-color-lighter);
+  border-color: getCssVar('message', 'border-color');
   position: fixed;
   left: 50%;
   top: 20px;
   transform: translateX(-50%);
-  background-color: var(--el-message-bg-color);
   transition: opacity 0.3s, transform 0.4s, top 0.4s;
-  background-color: var(--el-message-bg-color);
+  background-color: getCssVar('message', 'bg-color');
   transition: opacity var(--el-transition-duration), transform 0.4s, top 0.4s;
-  padding: var(--el-message-padding);
+  padding: getCssVar('message', 'padding');
   display: flex;
   align-items: center;
 
@@ -41,23 +40,26 @@
     margin: 0;
   }
 
-  @include m(info) {
-    .#{$namespace}-message__content {
-      color: var(--el-message-info-text-color);
-    }
-  }
-
   @each $type in (success, info, warning, error) {
     @include m($type) {
-      background-color: map.get($colors, $type, 'light-9');
-      border-color: map.get($colors, $type, 'light-8');
-
-      --el-message-text-color: var(--el-color-#{$type});
+      @include css-var-from-global(
+        ('message', 'bg-color'),
+        ('color', $type, 'light-9')
+      );
+      @include css-var-from-global(
+        ('message', 'border-color'),
+        ('color', $type, 'light-8')
+      );
+      @include css-var-from-global(('message', 'text-color'), ('color', $type));
 
       .#{$namespace}-message__content {
-        color: var(--el-message-text-color);
+        color: getCssVar('message', 'text-color');
       }
     }
+
+    & .#{$namespace}-message-icon--#{$type} {
+      color: getCssVar('message', 'text-color');
+    }
   }
 
   @include e(icon) {
@@ -85,21 +87,14 @@
     right: 15px;
     transform: translateY(-50%);
     cursor: pointer;
-    color: var(--el-message-close-icon-color);
-    font-size: var(--el-message-close-size, map.get($message, 'close-size'));
+    color: getCssVar('message', 'close-icon-color');
+    font-size: getCssVar('message', 'close-size');
 
     &:focus {
       outline-width: 0;
     }
     &:hover {
-      color: var(--el-message-close-hover-color);
-    }
-  }
-
-  @each $type in (success, info, warning, error) {
-    & .#{$namespace}-message-icon--#{$type} {
-      --el-message-text-color: var(--el-color-#{$type});
-      color: var(--el-message-text-color);
+      color: getCssVar('message', 'close-hover-color');
     }
   }
 }

packages/theme-chalk/src/mixins/_var.scss

@@ -5,31 +5,44 @@
 @use '../common/var' as *;
 
 @mixin set-css-color-type-light($type, $i) {
-  --el-color-#{$type}-light-#{$i}: #{map.get($colors, $type, 'light-#{$i}')};
+  #{getCssVarName('color', $type, 'light', $i)}: #{map.get(
+      $colors,
+      $type,
+      'light-#{$i}'
+    )};
 }
 
 @mixin set-css-color-type($type) {
-  --el-color-#{$type}: #{map.get($colors, $type, 'base')};
+  #{getCssVarName('color', $type)}: #{map.get($colors, $type, 'base')};
   @each $i in (3, 5, 7, 8, 9) {
     @include set-css-color-type-light($type, $i);
   }
-  --el-color-#{$type}-dark-2: #{map.get($colors, $type, 'dark-2')};
+  #{getCssVarName('color', $type, 'dark-2')}: #{map.get(
+      $colors,
+      $type,
+      'dark-2'
+    )};
 }
 
 @mixin set-css-var-type($name, $type, $variables) {
-  --el-#{$name}-#{$type}: #{map.get($variables, $type)};
+  #{getCssVarName($name, $type)}: #{map.get($variables, $type)};
 }
 
 // set all css var for component by map
 @mixin set-component-css-var($name, $variables) {
   @each $attribute, $value in $variables {
-    --el-#{$name}-#{$attribute}: #{$value};
+    @if $attribute == '' {
+      #{getCssVarName($name)}: #{$value};
+    } @else {
+      #{getCssVarName($name, $attribute)}: #{$value};
+    }
   }
 }
 
 @mixin set-css-color-rgb($type) {
   $color: map.get($colors, $type, 'base');
-  --el-color-#{$type}-rgb: #{red($color)}, #{green($color)}, #{blue($color)};
+  #{getCssVarName('color', $type, 'rgb')}: #{red($color)}, #{green($color)},
+    #{blue($color)};
 }
 
 // generate css var from existing css var

packages/theme-chalk/src/mixins/function.scss

@@ -43,7 +43,7 @@
 }
 
 // join var name
-// joinVarName('button', 'text-color') => '--el-button-text-color'
+// joinVarName(('button', 'text-color')) => '--el-button-text-color'
 @function joinVarName($list) {
   $name: '--' + config.$namespace;
   @each $item in $list {
@@ -54,6 +54,11 @@
   @return $name;
 }
 
+// getCssVarName('button', 'text-color') => '--el-button-text-color'
+@function getCssVarName($args...) {
+  @return joinVarName($args);
+}
+
 // getCssVar('button', 'text-color') => var(--el-button-text-color)
 @function getCssVar($args...) {
   @return var(#{joinVarName($args)});

packages/theme-chalk/src/mixins/mixins.scss

@@ -1,6 +1,7 @@
 @use 'function' as *;
 @use '../common/var' as *;
 @forward 'config';
+@forward 'function';
 @use 'config' as *;
 
 // Break-points

packages/theme-chalk/src/tag.scss

@@ -1,7 +1,6 @@
 @use 'sass:map';
 
 @use 'mixins/mixins' as *;
-@use 'mixins/function' as *;
 @use 'mixins/var' as *;
 @use 'common/var' as *;
 

packages/theme-chalk/src/var.scss

@@ -74,8 +74,7 @@
 -------------------------- */
   // refer to this website to get the bezier motion function detail
   //  https://cubic-bezier.com/#p1,p2,p3,p4 (change px as your function parameter)
-  --el-transition-duration: #{map.get($transition-duration, 'default')};
-  --el-transition-duration-fast: #{map.get($transition-duration, 'fast')};
+  @include set-component-css-var('transition-duration', $transition-duration);
 
   @include set-component-css-var('transition-function', $transition-function);
   @include set-component-css-var('transition', $transition);