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							515 lines
						
					
					
						
							16 KiB
						
					
					
				"use strict"; | 
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 | 
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exports.__esModule = true; | 
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exports.unescapeValue = unescapeValue; | 
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exports["default"] = void 0; | 
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 | 
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var _cssesc = _interopRequireDefault(require("cssesc")); | 
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 | 
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var _unesc = _interopRequireDefault(require("../util/unesc")); | 
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 | 
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var _namespace = _interopRequireDefault(require("./namespace")); | 
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 | 
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var _types = require("./types"); | 
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 | 
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var _CSSESC_QUOTE_OPTIONS; | 
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 | 
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } | 
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 | 
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } | 
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 | 
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } | 
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 | 
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function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); } | 
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 | 
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function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); } | 
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 | 
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var deprecate = require("util-deprecate"); | 
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 | 
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var WRAPPED_IN_QUOTES = /^('|")([^]*)\1$/; | 
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var warnOfDeprecatedValueAssignment = deprecate(function () {}, "Assigning an attribute a value containing characters that might need to be escaped is deprecated. " + "Call attribute.setValue() instead."); | 
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var warnOfDeprecatedQuotedAssignment = deprecate(function () {}, "Assigning attr.quoted is deprecated and has no effect. Assign to attr.quoteMark instead."); | 
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var warnOfDeprecatedConstructor = deprecate(function () {}, "Constructing an Attribute selector with a value without specifying quoteMark is deprecated. Note: The value should be unescaped now."); | 
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 | 
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function unescapeValue(value) { | 
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  var deprecatedUsage = false; | 
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  var quoteMark = null; | 
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  var unescaped = value; | 
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  var m = unescaped.match(WRAPPED_IN_QUOTES); | 
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 | 
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  if (m) { | 
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    quoteMark = m[1]; | 
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    unescaped = m[2]; | 
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  } | 
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 | 
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  unescaped = (0, _unesc["default"])(unescaped); | 
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 | 
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  if (unescaped !== value) { | 
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    deprecatedUsage = true; | 
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  } | 
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 | 
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  return { | 
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    deprecatedUsage: deprecatedUsage, | 
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    unescaped: unescaped, | 
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    quoteMark: quoteMark | 
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  }; | 
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} | 
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 | 
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function handleDeprecatedContructorOpts(opts) { | 
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  if (opts.quoteMark !== undefined) { | 
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    return opts; | 
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  } | 
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 | 
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  if (opts.value === undefined) { | 
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    return opts; | 
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  } | 
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 | 
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  warnOfDeprecatedConstructor(); | 
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 | 
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  var _unescapeValue = unescapeValue(opts.value), | 
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      quoteMark = _unescapeValue.quoteMark, | 
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      unescaped = _unescapeValue.unescaped; | 
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 | 
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  if (!opts.raws) { | 
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    opts.raws = {}; | 
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  } | 
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 | 
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  if (opts.raws.value === undefined) { | 
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    opts.raws.value = opts.value; | 
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  } | 
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 | 
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  opts.value = unescaped; | 
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  opts.quoteMark = quoteMark; | 
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  return opts; | 
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} | 
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 | 
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var Attribute = /*#__PURE__*/function (_Namespace) { | 
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  _inheritsLoose(Attribute, _Namespace); | 
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 | 
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  function Attribute(opts) { | 
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    var _this; | 
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 | 
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    if (opts === void 0) { | 
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      opts = {}; | 
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    } | 
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 | 
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    _this = _Namespace.call(this, handleDeprecatedContructorOpts(opts)) || this; | 
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    _this.type = _types.ATTRIBUTE; | 
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    _this.raws = _this.raws || {}; | 
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    Object.defineProperty(_this.raws, 'unquoted', { | 
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      get: deprecate(function () { | 
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        return _this.value; | 
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      }, "attr.raws.unquoted is deprecated. Call attr.value instead."), | 
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      set: deprecate(function () { | 
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        return _this.value; | 
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      }, "Setting attr.raws.unquoted is deprecated and has no effect. attr.value is unescaped by default now.") | 
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    }); | 
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    _this._constructed = true; | 
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    return _this; | 
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  } | 
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  /** | 
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   * Returns the Attribute's value quoted such that it would be legal to use | 
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   * in the value of a css file. The original value's quotation setting | 
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   * used for stringification is left unchanged. See `setValue(value, options)` | 
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   * if you want to control the quote settings of a new value for the attribute. | 
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   * | 
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   * You can also change the quotation used for the current value by setting quoteMark. | 
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   * | 
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   * Options: | 
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   *   * quoteMark {'"' | "'" | null} - Use this value to quote the value. If this | 
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   *     option is not set, the original value for quoteMark will be used. If | 
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   *     indeterminate, a double quote is used. The legal values are: | 
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   *     * `null` - the value will be unquoted and characters will be escaped as necessary. | 
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   *     * `'` - the value will be quoted with a single quote and single quotes are escaped. | 
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   *     * `"` - the value will be quoted with a double quote and double quotes are escaped. | 
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   *   * preferCurrentQuoteMark {boolean} - if true, prefer the source quote mark | 
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   *     over the quoteMark option value. | 
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   *   * smart {boolean} - if true, will select a quote mark based on the value | 
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   *     and the other options specified here. See the `smartQuoteMark()` | 
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   *     method. | 
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   **/ | 
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 | 
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 | 
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  var _proto = Attribute.prototype; | 
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 | 
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  _proto.getQuotedValue = function getQuotedValue(options) { | 
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    if (options === void 0) { | 
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      options = {}; | 
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    } | 
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 | 
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    var quoteMark = this._determineQuoteMark(options); | 
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 | 
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    var cssescopts = CSSESC_QUOTE_OPTIONS[quoteMark]; | 
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    var escaped = (0, _cssesc["default"])(this._value, cssescopts); | 
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    return escaped; | 
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  }; | 
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 | 
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  _proto._determineQuoteMark = function _determineQuoteMark(options) { | 
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    return options.smart ? this.smartQuoteMark(options) : this.preferredQuoteMark(options); | 
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  } | 
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  /** | 
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   * Set the unescaped value with the specified quotation options. The value | 
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   * provided must not include any wrapping quote marks -- those quotes will | 
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   * be interpreted as part of the value and escaped accordingly. | 
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   */ | 
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  ; | 
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 | 
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  _proto.setValue = function setValue(value, options) { | 
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    if (options === void 0) { | 
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      options = {}; | 
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    } | 
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 | 
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    this._value = value; | 
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    this._quoteMark = this._determineQuoteMark(options); | 
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 | 
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    this._syncRawValue(); | 
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  } | 
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  /** | 
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   * Intelligently select a quoteMark value based on the value's contents. If | 
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   * the value is a legal CSS ident, it will not be quoted. Otherwise a quote | 
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   * mark will be picked that minimizes the number of escapes. | 
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   * | 
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   * If there's no clear winner, the quote mark from these options is used, | 
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   * then the source quote mark (this is inverted if `preferCurrentQuoteMark` is | 
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   * true). If the quoteMark is unspecified, a double quote is used. | 
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   * | 
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   * @param options This takes the quoteMark and preferCurrentQuoteMark options | 
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   * from the quoteValue method. | 
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   */ | 
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  ; | 
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 | 
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  _proto.smartQuoteMark = function smartQuoteMark(options) { | 
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    var v = this.value; | 
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    var numSingleQuotes = v.replace(/[^']/g, '').length; | 
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    var numDoubleQuotes = v.replace(/[^"]/g, '').length; | 
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 | 
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    if (numSingleQuotes + numDoubleQuotes === 0) { | 
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      var escaped = (0, _cssesc["default"])(v, { | 
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        isIdentifier: true | 
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      }); | 
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 | 
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      if (escaped === v) { | 
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        return Attribute.NO_QUOTE; | 
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      } else { | 
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        var pref = this.preferredQuoteMark(options); | 
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 | 
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        if (pref === Attribute.NO_QUOTE) { | 
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          // pick a quote mark that isn't none and see if it's smaller | 
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          var quote = this.quoteMark || options.quoteMark || Attribute.DOUBLE_QUOTE; | 
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          var opts = CSSESC_QUOTE_OPTIONS[quote]; | 
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          var quoteValue = (0, _cssesc["default"])(v, opts); | 
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 | 
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          if (quoteValue.length < escaped.length) { | 
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            return quote; | 
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          } | 
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        } | 
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 | 
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        return pref; | 
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      } | 
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    } else if (numDoubleQuotes === numSingleQuotes) { | 
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      return this.preferredQuoteMark(options); | 
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    } else if (numDoubleQuotes < numSingleQuotes) { | 
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      return Attribute.DOUBLE_QUOTE; | 
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    } else { | 
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      return Attribute.SINGLE_QUOTE; | 
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    } | 
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  } | 
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  /** | 
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   * Selects the preferred quote mark based on the options and the current quote mark value. | 
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   * If you want the quote mark to depend on the attribute value, call `smartQuoteMark(opts)` | 
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   * instead. | 
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   */ | 
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  ; | 
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 | 
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  _proto.preferredQuoteMark = function preferredQuoteMark(options) { | 
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    var quoteMark = options.preferCurrentQuoteMark ? this.quoteMark : options.quoteMark; | 
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 | 
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    if (quoteMark === undefined) { | 
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      quoteMark = options.preferCurrentQuoteMark ? options.quoteMark : this.quoteMark; | 
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    } | 
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 | 
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    if (quoteMark === undefined) { | 
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      quoteMark = Attribute.DOUBLE_QUOTE; | 
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    } | 
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 | 
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    return quoteMark; | 
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  }; | 
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 | 
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  _proto._syncRawValue = function _syncRawValue() { | 
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    var rawValue = (0, _cssesc["default"])(this._value, CSSESC_QUOTE_OPTIONS[this.quoteMark]); | 
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 | 
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    if (rawValue === this._value) { | 
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      if (this.raws) { | 
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        delete this.raws.value; | 
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      } | 
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    } else { | 
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      this.raws.value = rawValue; | 
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    } | 
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  }; | 
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 | 
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  _proto._handleEscapes = function _handleEscapes(prop, value) { | 
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    if (this._constructed) { | 
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      var escaped = (0, _cssesc["default"])(value, { | 
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        isIdentifier: true | 
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      }); | 
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 | 
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      if (escaped !== value) { | 
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        this.raws[prop] = escaped; | 
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      } else { | 
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        delete this.raws[prop]; | 
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      } | 
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    } | 
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  }; | 
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 | 
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  _proto._spacesFor = function _spacesFor(name) { | 
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    var attrSpaces = { | 
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      before: '', | 
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      after: '' | 
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    }; | 
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    var spaces = this.spaces[name] || {}; | 
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    var rawSpaces = this.raws.spaces && this.raws.spaces[name] || {}; | 
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    return Object.assign(attrSpaces, spaces, rawSpaces); | 
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  }; | 
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 | 
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  _proto._stringFor = function _stringFor(name, spaceName, concat) { | 
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    if (spaceName === void 0) { | 
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      spaceName = name; | 
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    } | 
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 | 
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    if (concat === void 0) { | 
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      concat = defaultAttrConcat; | 
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    } | 
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 | 
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    var attrSpaces = this._spacesFor(spaceName); | 
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 | 
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    return concat(this.stringifyProperty(name), attrSpaces); | 
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  } | 
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  /** | 
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   * returns the offset of the attribute part specified relative to the | 
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   * start of the node of the output string. | 
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   * | 
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   * * "ns" - alias for "namespace" | 
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   * * "namespace" - the namespace if it exists. | 
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   * * "attribute" - the attribute name | 
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   * * "attributeNS" - the start of the attribute or its namespace | 
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   * * "operator" - the match operator of the attribute | 
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   * * "value" - The value (string or identifier) | 
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   * * "insensitive" - the case insensitivity flag; | 
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   * @param part One of the possible values inside an attribute. | 
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   * @returns -1 if the name is invalid or the value doesn't exist in this attribute. | 
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   */ | 
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  ; | 
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 | 
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  _proto.offsetOf = function offsetOf(name) { | 
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    var count = 1; | 
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 | 
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    var attributeSpaces = this._spacesFor("attribute"); | 
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 | 
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    count += attributeSpaces.before.length; | 
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 | 
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    if (name === "namespace" || name === "ns") { | 
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      return this.namespace ? count : -1; | 
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    } | 
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 | 
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    if (name === "attributeNS") { | 
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      return count; | 
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    } | 
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 | 
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    count += this.namespaceString.length; | 
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 | 
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    if (this.namespace) { | 
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      count += 1; | 
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    } | 
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 | 
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    if (name === "attribute") { | 
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      return count; | 
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    } | 
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 | 
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    count += this.stringifyProperty("attribute").length; | 
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    count += attributeSpaces.after.length; | 
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 | 
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    var operatorSpaces = this._spacesFor("operator"); | 
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 | 
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    count += operatorSpaces.before.length; | 
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    var operator = this.stringifyProperty("operator"); | 
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 | 
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    if (name === "operator") { | 
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      return operator ? count : -1; | 
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    } | 
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 | 
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    count += operator.length; | 
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    count += operatorSpaces.after.length; | 
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 | 
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    var valueSpaces = this._spacesFor("value"); | 
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 | 
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    count += valueSpaces.before.length; | 
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    var value = this.stringifyProperty("value"); | 
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 | 
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    if (name === "value") { | 
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      return value ? count : -1; | 
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    } | 
						|
 | 
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    count += value.length; | 
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    count += valueSpaces.after.length; | 
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 | 
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    var insensitiveSpaces = this._spacesFor("insensitive"); | 
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 | 
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    count += insensitiveSpaces.before.length; | 
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 | 
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    if (name === "insensitive") { | 
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      return this.insensitive ? count : -1; | 
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    } | 
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 | 
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    return -1; | 
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  }; | 
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 | 
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  _proto.toString = function toString() { | 
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    var _this2 = this; | 
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 | 
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    var selector = [this.rawSpaceBefore, '[']; | 
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    selector.push(this._stringFor('qualifiedAttribute', 'attribute')); | 
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 | 
						|
    if (this.operator && (this.value || this.value === '')) { | 
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      selector.push(this._stringFor('operator')); | 
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      selector.push(this._stringFor('value')); | 
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      selector.push(this._stringFor('insensitiveFlag', 'insensitive', function (attrValue, attrSpaces) { | 
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        if (attrValue.length > 0 && !_this2.quoted && attrSpaces.before.length === 0 && !(_this2.spaces.value && _this2.spaces.value.after)) { | 
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          attrSpaces.before = " "; | 
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        } | 
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 | 
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        return defaultAttrConcat(attrValue, attrSpaces); | 
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      })); | 
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    } | 
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 | 
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    selector.push(']'); | 
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    selector.push(this.rawSpaceAfter); | 
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    return selector.join(''); | 
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  }; | 
						|
 | 
						|
  _createClass(Attribute, [{ | 
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    key: "quoted", | 
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    get: function get() { | 
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      var qm = this.quoteMark; | 
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      return qm === "'" || qm === '"'; | 
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    }, | 
						|
    set: function set(value) { | 
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      warnOfDeprecatedQuotedAssignment(); | 
						|
    } | 
						|
    /** | 
						|
     * returns a single (`'`) or double (`"`) quote character if the value is quoted. | 
						|
     * returns `null` if the value is not quoted. | 
						|
     * returns `undefined` if the quotation state is unknown (this can happen when | 
						|
     * the attribute is constructed without specifying a quote mark.) | 
						|
     */ | 
						|
 | 
						|
  }, { | 
						|
    key: "quoteMark", | 
						|
    get: function get() { | 
						|
      return this._quoteMark; | 
						|
    } | 
						|
    /** | 
						|
     * Set the quote mark to be used by this attribute's value. | 
						|
     * If the quote mark changes, the raw (escaped) value at `attr.raws.value` of the attribute | 
						|
     * value is updated accordingly. | 
						|
     * | 
						|
     * @param {"'" | '"' | null} quoteMark The quote mark or `null` if the value should be unquoted. | 
						|
     */ | 
						|
    , | 
						|
    set: function set(quoteMark) { | 
						|
      if (!this._constructed) { | 
						|
        this._quoteMark = quoteMark; | 
						|
        return; | 
						|
      } | 
						|
 | 
						|
      if (this._quoteMark !== quoteMark) { | 
						|
        this._quoteMark = quoteMark; | 
						|
 | 
						|
        this._syncRawValue(); | 
						|
      } | 
						|
    } | 
						|
  }, { | 
						|
    key: "qualifiedAttribute", | 
						|
    get: function get() { | 
						|
      return this.qualifiedName(this.raws.attribute || this.attribute); | 
						|
    } | 
						|
  }, { | 
						|
    key: "insensitiveFlag", | 
						|
    get: function get() { | 
						|
      return this.insensitive ? 'i' : ''; | 
						|
    } | 
						|
  }, { | 
						|
    key: "value", | 
						|
    get: function get() { | 
						|
      return this._value; | 
						|
    } | 
						|
    /** | 
						|
     * Before 3.0, the value had to be set to an escaped value including any wrapped | 
						|
     * quote marks. In 3.0, the semantics of `Attribute.value` changed so that the value | 
						|
     * is unescaped during parsing and any quote marks are removed. | 
						|
     * | 
						|
     * Because the ambiguity of this semantic change, if you set `attr.value = newValue`, | 
						|
     * a deprecation warning is raised when the new value contains any characters that would | 
						|
     * require escaping (including if it contains wrapped quotes). | 
						|
     * | 
						|
     * Instead, you should call `attr.setValue(newValue, opts)` and pass options that describe | 
						|
     * how the new value is quoted. | 
						|
     */ | 
						|
    , | 
						|
    set: function set(v) { | 
						|
      if (this._constructed) { | 
						|
        var _unescapeValue2 = unescapeValue(v), | 
						|
            deprecatedUsage = _unescapeValue2.deprecatedUsage, | 
						|
            unescaped = _unescapeValue2.unescaped, | 
						|
            quoteMark = _unescapeValue2.quoteMark; | 
						|
 | 
						|
        if (deprecatedUsage) { | 
						|
          warnOfDeprecatedValueAssignment(); | 
						|
        } | 
						|
 | 
						|
        if (unescaped === this._value && quoteMark === this._quoteMark) { | 
						|
          return; | 
						|
        } | 
						|
 | 
						|
        this._value = unescaped; | 
						|
        this._quoteMark = quoteMark; | 
						|
 | 
						|
        this._syncRawValue(); | 
						|
      } else { | 
						|
        this._value = v; | 
						|
      } | 
						|
    } | 
						|
  }, { | 
						|
    key: "attribute", | 
						|
    get: function get() { | 
						|
      return this._attribute; | 
						|
    }, | 
						|
    set: function set(name) { | 
						|
      this._handleEscapes("attribute", name); | 
						|
 | 
						|
      this._attribute = name; | 
						|
    } | 
						|
  }]); | 
						|
 | 
						|
  return Attribute; | 
						|
}(_namespace["default"]); | 
						|
 | 
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exports["default"] = Attribute; | 
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Attribute.NO_QUOTE = null; | 
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Attribute.SINGLE_QUOTE = "'"; | 
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Attribute.DOUBLE_QUOTE = '"'; | 
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var CSSESC_QUOTE_OPTIONS = (_CSSESC_QUOTE_OPTIONS = { | 
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  "'": { | 
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    quotes: 'single', | 
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    wrap: true | 
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  }, | 
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  '"': { | 
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    quotes: 'double', | 
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    wrap: true | 
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  } | 
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}, _CSSESC_QUOTE_OPTIONS[null] = { | 
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  isIdentifier: true | 
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}, _CSSESC_QUOTE_OPTIONS); | 
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 | 
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function defaultAttrConcat(attrValue, attrSpaces) { | 
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  return "" + attrSpaces.before + attrValue + attrSpaces.after; | 
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} |