LibWeb/CSS: Parse mask-clip property

Author: https://github.com/InvalidUsernameException
Commit: f953196cb4
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5511
Reviewed-by: https://github.com/AtkinsSJ ✅
Reviewed-by: https://github.com/Calme1709

Libraries/LibWeb/CSS/Keywords.json

@@ -342,6 +342,7 @@
   "ne-resize",
   "nearest",
   "nesw-resize",
+  "no-clip",
   "no-close-quote",
   "no-common-ligatures",
   "no-contextual",

Libraries/LibWeb/CSS/Parser/PropertyParsing.cpp

@@ -664,6 +664,7 @@ Parser::ParseErrorOr<NonnullRefPtr<CSSStyleValue const>> Parser::parse_css_value
         if (auto parsed_value = parse_math_depth_value(tokens); parsed_value && !tokens.has_next_token())
             return parsed_value.release_nonnull();
         return ParseError::SyntaxError;
+    case PropertyID::MaskClip:
     case PropertyID::MaskComposite:
     case PropertyID::MaskMode:
     case PropertyID::MaskOrigin:

Libraries/LibWeb/CSS/Properties.json

@@ -2383,6 +2383,18 @@
       "mask-image"
     ]
   },
+  "mask-clip": {
+    "animation-type": "discrete",
+    "inherited": false,
+    "affects-layout": false,
+    "valid-types": [
+      "coord-box"
+    ],
+    "valid-identifiers": [
+      "no-clip"
+    ],
+    "initial": "border-box"
+  },
   "mask-composite": {
     "animation-type": "discrete",
     "inherited": false,

Tests/LibWeb/Text/expected/css/CSSStyleDeclaration-has-indexed-property-getter.txt

@@ -186,6 +186,7 @@ All properties associated with getComputedStyle(document.body):
     "margin-left",
     "margin-right",
     "margin-top",
+    "mask-clip",
     "mask-composite",
     "mask-image",
     "mask-mode",

Tests/LibWeb/Text/expected/css/CSSStyleProperties-all-supported-properties-and-default-values.txt

@@ -525,6 +525,8 @@ All supported properties and their default values exposed from CSSStylePropertie
 'marginTop': '8px'
 'margin-top': '8px'
 'mask': 'none'
+'maskClip': 'border-box'
+'mask-clip': 'border-box'
 'maskComposite': 'add'
 'mask-composite': 'add'
 'maskImage': 'none'

Tests/LibWeb/Text/expected/css/getComputedStyle-print-all.txt

@@ -184,6 +184,7 @@ margin-inline-start: 8px
 margin-left: 8px
 margin-right: 8px
 margin-top: 8px
+mask-clip: border-box
 mask-composite: add
 mask-image: none
 mask-mode: match-source

Tests/LibWeb/Text/expected/wpt-import/css/css-cascade/all-prop-revert-layer.txt

@@ -1,8 +1,8 @@
 Harness status: OK
 
-Found 253 tests
+Found 254 tests
 
-246 Pass
+247 Pass
 7 Fail
 Pass	accent-color
 Pass	border-collapse
@@ -185,6 +185,7 @@ Pass	margin-inline-start
 Pass	margin-left
 Pass	margin-right
 Pass	margin-top
+Pass	mask-clip
 Pass	mask-composite
 Pass	mask-image
 Pass	mask-mode