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"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;
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