1 files changed, 126 insertions, 0 deletions
diff --git a/vanilla/node_modules/cssstyle/lib/properties/backgroundSize.js b/vanilla/node_modules/cssstyle/lib/properties/backgroundSize.js
new file mode 100644
index 0000000..be31044
--- /dev/null
+++ b/vanilla/node_modules/cssstyle/lib/properties/backgroundSize.js
@@ -0,0 +1,126 @@
+"use strict";
+
+const parsers = require("../parsers");
+
+const property = "background-size";
+const shorthand = "background";
+
+module.exports.parse = (v, opt = {}) => {
+  const { globalObject } = opt;
+  if (v === "") {
+    return v;
+  }
+  const { AST_TYPES } = parsers;
+  const values = parsers.splitValue(v, {
+    delimiter: ","
+  });
+  const parsedValues = [];
+  for (const val of values) {
+    const value = parsers.parsePropertyValue(property, val, {
+      globalObject,
+      inArray: true
+    });
+    if (Array.isArray(value) && value.length) {
+      if (value.length === 1) {
+        const [{ isNumber, name, type, value: itemValue }] = value;
+        switch (type) {
+          case AST_TYPES.CALC: {
+            if (isNumber) {
+              return;
+            }
+            parsedValues.push(`${name}(${itemValue})`);
+            break;
+          }
+          case AST_TYPES.GLOBAL_KEYWORD:
+          case AST_TYPES.IDENTIFIER: {
+            parsedValues.push(name);
+            break;
+          }
+          default: {
+            const parsedValue = parsers.resolveNumericValue(value, {
+              type: "length"
+            });
+            if (!parsedValue) {
+              return;
+            }
+            parsedValues.push(parsedValue);
+          }
+        }
+      } else {
+        const [val1, val2] = value;
+        const parts = [];
+        if (val1.type === AST_TYPES.CALC && !val1.isNumber) {
+          parts.push(`${val1.name}(${val1.value})`);
+        } else if (val1.type === AST_TYPES.IDENTIFIER) {
+          parts.push(val1.name);
+        } else if (val1.type === AST_TYPES.DIMENSION) {
+          parts.push(`${val1.value}${val1.unit}`);
+        } else if (val1.type === AST_TYPES.PERCENTAGE) {
+          parts.push(`${val1.value}%`);
+        } else {
+          return;
+        }
+        switch (val2.type) {
+          case AST_TYPES.CALC: {
+            if (val2.isNumber) {
+              return;
+            }
+            parts.push(`${val2.name}(${val2.value})`);
+            break;
+          }
+          case AST_TYPES.DIMENSION: {
+            parts.push(`${val2.value}${val2.unit}`);
+            break;
+          }
+          case AST_TYPES.IDENTIFIER: {
+            if (val2.name !== "auto") {
+              parts.push(val2.name);
+            }
+            break;
+          }
+          case AST_TYPES.PERCENTAGE: {
+            parts.push(`${val2.value}%`);
+            break;
+          }
+          default: {
+            return;
+          }
+        }
+        parsedValues.push(parts.join(" "));
+      }
+    } else if (typeof value === "string") {
+      parsedValues.push(value);
+    }
+  }
+  if (parsedValues.length) {
+    return parsedValues.join(", ");
+  }
+};
+
+module.exports.definition = {
+  set(v) {
+    v = parsers.prepareValue(v);
+    if (parsers.hasVarFunc(v)) {
+      this._setProperty(shorthand, "");
+      this._setProperty(property, v);
+    } else {
+      const val = module.exports.parse(v, {
+        globalObject: this._global
+      });
+      if (typeof val === "string") {
+        const priority =
+          !this._priorities.get(shorthand) && this._priorities.has(property)
+            ? this._priorities.get(property)
+            : "";
+        this._setProperty(property, val, priority);
+      }
+    }
+  },
+  get() {
+    return this.getPropertyValue(property);
+  },
+  enumerable: true,
+  configurable: true
+};
+
+module.exports.property = property;