Improved font handling

1 files changed, 116 insertions, 6 deletions

diff --git a/src/_functions.scss b/src/_functions.scss
index a11d5f4..9f6a789 100644
--- a/src/_functions.scss
+++ b/src/_functions.scss
@@ -10,9 +10,7 @@
 }
 
 @function foreign-color($foreign-key, $key, $tree: 'colors', $default: null, $global: true) {
-    $key: iro.fn-list-prepend($key, --colors);
-    $key: iro.fn-list-prepend($key, $foreign-key);
-    @return iro.props-get($key, $tree, $default, $global);
+    @return iro.props-get(join($foreign-key --colors, $key), $tree, $default, $global);
 }
 
 @function dim($key, $tree: 'dims', $default: null, $global: false) {
@@ -25,7 +23,119 @@
 }
 
 @function foreign-dim($foreign-key, $key, $tree: 'dims', $default: null, $global: true) {
-    $key: iro.fn-list-prepend($key, --dims);
-    $key: iro.fn-list-prepend($key, $foreign-key);
-    @return iro.props-get($key, $tree, $default, $global);
+    @return iro.props-get(join($foreign-key --dims, $key), $tree, $default, $global);
+}
+
+@function set-font($key, $overrides: ()) {
+    $font: iro.props-get-static(join(--dims --font, $key), 'dims', $global: true);
+
+    $map: ();
+
+    @if (map-has-key($overrides, --family)) {
+        $map: map-merge(
+            $map, (
+                font-family: map-get($overrides, --family)
+            )
+        );
+    } @else if (map-has-key($font, --family)) {
+        $map: map-merge(
+            $map, (
+                font-family: global-dim(--font $key --family)
+            )
+        );
+    }
+
+    @if (map-has-key($overrides, --size)) {
+        $map: map-merge(
+            $map, (
+                font-size: map-get($overrides, --size)
+            )
+        );
+    } @else if (map-has-key($font, --size)) {
+        $map: map-merge(
+            $map, (
+                font-size: global-dim(--font $key --size)
+            )
+        );
+    }
+
+    @if (map-has-key($overrides, --weight)) {
+        $map: map-merge(
+            $map, (
+                font-weight: map-get($overrides, --weight)
+            )
+        );
+    } @else if (map-has-key($font, --weight)) {
+        $map: map-merge(
+            $map, (
+                font-weight: global-dim(--font $key --weight)
+            )
+        );
+    }
+
+    @if (map-has-key($overrides, --style)) {
+        $map: map-merge(
+            $map, (
+                font-style: map-get($overrides, --style)
+            )
+        );
+    } @else if (map-has-key($font, --style)) {
+        $map: map-merge(
+            $map, (
+                font-style: global-dim(--font $key --style)
+            )
+        );
+    }
+
+    @if (map-has-key($overrides, --line-height)) {
+        $map: map-merge(
+            $map, (
+                line-height: map-get($overrides, --line-height)
+            )
+        );
+    } @else if (map-has-key($font, --line-height)) {
+        $map: map-merge(
+            $map, (
+                line-height: global-dim(--font $key --line-height)
+            )
+        );
+    }
+
+    @if (map-has-key($overrides, --transform)) {
+        $map: map-merge(
+            $map, (
+                text-transform: map-get($overrides, --transform)
+            )
+        );
+    } @else if (map-has-key($font, --transform)) {
+        $map: map-merge(
+            $map, (
+                text-transform: global-dim(--font $key --transform)
+            )
+        );
+    }
+
+    @if (map-has-key($overrides, --variant-alternates)) {
+        $map: map-merge(
+            $map, (
+                font-variant-alternates: map-get($overrides, --variant-alternates)
+            )
+        );
+    } @else if (map-has-key($font, --variant-alternates)) {
+        $map: map-merge(
+            $map, (
+                font-variant-alternates: global-dim(--font $key --variant-alternates)
+            )
+        );
+    }
+
+    @return $map;
+}
+
+@mixin set-font($basis, $values: ()) {
+    $values: set-font($basis, $values);
+
+    @each $prop, $value in $values {
+        #{$prop}: $value;
+    }
 }