1 | /**
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2 | * @license
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3 | * Copyright Google Inc. All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | (function (factory) {
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9 | if (typeof module === "object" && typeof module.exports === "object") {
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10 | var v = factory(require, exports);
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11 | if (v !== undefined) module.exports = v;
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12 | }
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13 | else if (typeof define === "function" && define.amd) {
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14 | define("@angular/compiler/src/selector", ["require", "exports", "@angular/compiler/src/ml_parser/html_tags"], factory);
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15 | }
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16 | })(function (require, exports) {
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17 | ;
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18 | Object.defineProperty(exports, "__esModule", { value: true });
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19 | var html_tags_1 = require("@angular/compiler/src/ml_parser/html_tags");
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20 | var _SELECTOR_REGEXP = new RegExp('(\\:not\\()|' + // 1: ":not("
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21 | '(([\\.\\#]?)[-\\w]+)|' + // 2: "tag"; 3: "."/"#";
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22 | // "-" should appear first in the regexp below as FF31 parses "[.-\w]" as a range
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23 | // 4: attribute; 5: attribute_string; 6: attribute_value
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24 | '(?:\\[([-.\\w*]+)(?:=([\"\']?)([^\\]\"\']*)\\5)?\\])|' + // "[name]", "[name=value]",
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25 | // "[name="value"]",
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26 | // "[name='value']"
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27 | '(\\))|' + // 7: ")"
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28 | '(\\s*,\\s*)', // 8: ","
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29 | 'g');
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30 | /**
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31 | * A css selector contains an element name,
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32 | * css classes and attribute/value pairs with the purpose
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33 | * of selecting subsets out of them.
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34 | */
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35 | var CssSelector = /** @class */ (function () {
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36 | function CssSelector() {
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37 | this.element = null;
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38 | this.classNames = [];
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39 | /**
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40 | * The selectors are encoded in pairs where:
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41 | * - even locations are attribute names
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42 | * - odd locations are attribute values.
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43 | *
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44 | * Example:
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45 | * Selector: `[key1=value1][key2]` would parse to:
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46 | * ```
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47 | * ['key1', 'value1', 'key2', '']
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48 | * ```
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49 | */
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50 | this.attrs = [];
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51 | this.notSelectors = [];
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52 | }
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53 | CssSelector.parse = function (selector) {
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54 | var results = [];
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55 | var _addResult = function (res, cssSel) {
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56 | if (cssSel.notSelectors.length > 0 && !cssSel.element && cssSel.classNames.length == 0 &&
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57 | cssSel.attrs.length == 0) {
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58 | cssSel.element = '*';
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59 | }
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60 | res.push(cssSel);
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61 | };
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62 | var cssSelector = new CssSelector();
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63 | var match;
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64 | var current = cssSelector;
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65 | var inNot = false;
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66 | _SELECTOR_REGEXP.lastIndex = 0;
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67 | while (match = _SELECTOR_REGEXP.exec(selector)) {
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68 | if (match[1 /* NOT */]) {
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69 | if (inNot) {
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70 | throw new Error('Nesting :not in a selector is not allowed');
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71 | }
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72 | inNot = true;
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73 | current = new CssSelector();
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74 | cssSelector.notSelectors.push(current);
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75 | }
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76 | var tag = match[2 /* TAG */];
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77 | if (tag) {
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78 | var prefix = match[3 /* PREFIX */];
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79 | if (prefix === '#') {
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80 | // #hash
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81 | current.addAttribute('id', tag.substr(1));
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82 | }
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83 | else if (prefix === '.') {
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84 | // Class
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85 | current.addClassName(tag.substr(1));
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86 | }
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87 | else {
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88 | // Element
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89 | current.setElement(tag);
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90 | }
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91 | }
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92 | var attribute = match[4 /* ATTRIBUTE */];
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93 | if (attribute) {
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94 | current.addAttribute(attribute, match[6 /* ATTRIBUTE_VALUE */]);
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95 | }
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96 | if (match[7 /* NOT_END */]) {
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97 | inNot = false;
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98 | current = cssSelector;
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99 | }
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100 | if (match[8 /* SEPARATOR */]) {
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101 | if (inNot) {
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102 | throw new Error('Multiple selectors in :not are not supported');
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103 | }
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104 | _addResult(results, cssSelector);
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105 | cssSelector = current = new CssSelector();
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106 | }
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107 | }
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108 | _addResult(results, cssSelector);
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109 | return results;
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110 | };
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111 | CssSelector.prototype.isElementSelector = function () {
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112 | return this.hasElementSelector() && this.classNames.length == 0 && this.attrs.length == 0 &&
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113 | this.notSelectors.length === 0;
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114 | };
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115 | CssSelector.prototype.hasElementSelector = function () {
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116 | return !!this.element;
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117 | };
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118 | CssSelector.prototype.setElement = function (element) {
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119 | if (element === void 0) { element = null; }
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120 | this.element = element;
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121 | };
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122 | /** Gets a template string for an element that matches the selector. */
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123 | CssSelector.prototype.getMatchingElementTemplate = function () {
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124 | var tagName = this.element || 'div';
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125 | var classAttr = this.classNames.length > 0 ? " class=\"" + this.classNames.join(' ') + "\"" : '';
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126 | var attrs = '';
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127 | for (var i = 0; i < this.attrs.length; i += 2) {
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128 | var attrName = this.attrs[i];
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129 | var attrValue = this.attrs[i + 1] !== '' ? "=\"" + this.attrs[i + 1] + "\"" : '';
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130 | attrs += " " + attrName + attrValue;
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131 | }
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132 | return html_tags_1.getHtmlTagDefinition(tagName).isVoid ? "<" + tagName + classAttr + attrs + "/>" :
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133 | "<" + tagName + classAttr + attrs + "></" + tagName + ">";
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134 | };
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135 | CssSelector.prototype.getAttrs = function () {
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136 | var result = [];
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137 | if (this.classNames.length > 0) {
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138 | result.push('class', this.classNames.join(' '));
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139 | }
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140 | return result.concat(this.attrs);
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141 | };
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142 | CssSelector.prototype.addAttribute = function (name, value) {
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143 | if (value === void 0) { value = ''; }
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144 | this.attrs.push(name, value && value.toLowerCase() || '');
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145 | };
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146 | CssSelector.prototype.addClassName = function (name) {
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147 | this.classNames.push(name.toLowerCase());
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148 | };
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149 | CssSelector.prototype.toString = function () {
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150 | var res = this.element || '';
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151 | if (this.classNames) {
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152 | this.classNames.forEach(function (klass) { return res += "." + klass; });
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153 | }
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154 | if (this.attrs) {
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155 | for (var i = 0; i < this.attrs.length; i += 2) {
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156 | var name_1 = this.attrs[i];
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157 | var value = this.attrs[i + 1];
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158 | res += "[" + name_1 + (value ? '=' + value : '') + "]";
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159 | }
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160 | }
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161 | this.notSelectors.forEach(function (notSelector) { return res += ":not(" + notSelector + ")"; });
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162 | return res;
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163 | };
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164 | return CssSelector;
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165 | }());
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166 | exports.CssSelector = CssSelector;
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167 | /**
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168 | * Reads a list of CssSelectors and allows to calculate which ones
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169 | * are contained in a given CssSelector.
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170 | */
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171 | var SelectorMatcher = /** @class */ (function () {
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172 | function SelectorMatcher() {
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173 | this._elementMap = new Map();
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174 | this._elementPartialMap = new Map();
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175 | this._classMap = new Map();
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176 | this._classPartialMap = new Map();
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177 | this._attrValueMap = new Map();
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178 | this._attrValuePartialMap = new Map();
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179 | this._listContexts = [];
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180 | }
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181 | SelectorMatcher.createNotMatcher = function (notSelectors) {
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182 | var notMatcher = new SelectorMatcher();
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183 | notMatcher.addSelectables(notSelectors, null);
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184 | return notMatcher;
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185 | };
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186 | SelectorMatcher.prototype.addSelectables = function (cssSelectors, callbackCtxt) {
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187 | var listContext = null;
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188 | if (cssSelectors.length > 1) {
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189 | listContext = new SelectorListContext(cssSelectors);
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190 | this._listContexts.push(listContext);
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191 | }
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192 | for (var i = 0; i < cssSelectors.length; i++) {
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193 | this._addSelectable(cssSelectors[i], callbackCtxt, listContext);
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194 | }
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195 | };
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196 | /**
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197 | * Add an object that can be found later on by calling `match`.
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198 | * @param cssSelector A css selector
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199 | * @param callbackCtxt An opaque object that will be given to the callback of the `match` function
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200 | */
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201 | SelectorMatcher.prototype._addSelectable = function (cssSelector, callbackCtxt, listContext) {
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202 | var matcher = this;
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203 | var element = cssSelector.element;
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204 | var classNames = cssSelector.classNames;
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205 | var attrs = cssSelector.attrs;
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206 | var selectable = new SelectorContext(cssSelector, callbackCtxt, listContext);
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207 | if (element) {
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208 | var isTerminal = attrs.length === 0 && classNames.length === 0;
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209 | if (isTerminal) {
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210 | this._addTerminal(matcher._elementMap, element, selectable);
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211 | }
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212 | else {
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213 | matcher = this._addPartial(matcher._elementPartialMap, element);
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214 | }
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215 | }
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216 | if (classNames) {
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217 | for (var i = 0; i < classNames.length; i++) {
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218 | var isTerminal = attrs.length === 0 && i === classNames.length - 1;
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219 | var className = classNames[i];
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220 | if (isTerminal) {
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221 | this._addTerminal(matcher._classMap, className, selectable);
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222 | }
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223 | else {
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224 | matcher = this._addPartial(matcher._classPartialMap, className);
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225 | }
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226 | }
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227 | }
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228 | if (attrs) {
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229 | for (var i = 0; i < attrs.length; i += 2) {
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230 | var isTerminal = i === attrs.length - 2;
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231 | var name_2 = attrs[i];
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232 | var value = attrs[i + 1];
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233 | if (isTerminal) {
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234 | var terminalMap = matcher._attrValueMap;
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235 | var terminalValuesMap = terminalMap.get(name_2);
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236 | if (!terminalValuesMap) {
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237 | terminalValuesMap = new Map();
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238 | terminalMap.set(name_2, terminalValuesMap);
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239 | }
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240 | this._addTerminal(terminalValuesMap, value, selectable);
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241 | }
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242 | else {
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243 | var partialMap = matcher._attrValuePartialMap;
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244 | var partialValuesMap = partialMap.get(name_2);
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245 | if (!partialValuesMap) {
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246 | partialValuesMap = new Map();
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247 | partialMap.set(name_2, partialValuesMap);
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248 | }
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249 | matcher = this._addPartial(partialValuesMap, value);
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250 | }
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251 | }
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252 | }
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253 | };
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254 | SelectorMatcher.prototype._addTerminal = function (map, name, selectable) {
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255 | var terminalList = map.get(name);
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256 | if (!terminalList) {
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257 | terminalList = [];
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258 | map.set(name, terminalList);
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259 | }
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260 | terminalList.push(selectable);
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261 | };
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262 | SelectorMatcher.prototype._addPartial = function (map, name) {
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263 | var matcher = map.get(name);
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264 | if (!matcher) {
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265 | matcher = new SelectorMatcher();
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266 | map.set(name, matcher);
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267 | }
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268 | return matcher;
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269 | };
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270 | /**
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271 | * Find the objects that have been added via `addSelectable`
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272 | * whose css selector is contained in the given css selector.
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273 | * @param cssSelector A css selector
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274 | * @param matchedCallback This callback will be called with the object handed into `addSelectable`
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275 | * @return boolean true if a match was found
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276 | */
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277 | SelectorMatcher.prototype.match = function (cssSelector, matchedCallback) {
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278 | var result = false;
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279 | var element = cssSelector.element;
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280 | var classNames = cssSelector.classNames;
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281 | var attrs = cssSelector.attrs;
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282 | for (var i = 0; i < this._listContexts.length; i++) {
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283 | this._listContexts[i].alreadyMatched = false;
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284 | }
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285 | result = this._matchTerminal(this._elementMap, element, cssSelector, matchedCallback) || result;
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286 | result = this._matchPartial(this._elementPartialMap, element, cssSelector, matchedCallback) ||
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287 | result;
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288 | if (classNames) {
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289 | for (var i = 0; i < classNames.length; i++) {
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290 | var className = classNames[i];
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291 | result =
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292 | this._matchTerminal(this._classMap, className, cssSelector, matchedCallback) || result;
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293 | result =
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294 | this._matchPartial(this._classPartialMap, className, cssSelector, matchedCallback) ||
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295 | result;
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296 | }
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297 | }
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298 | if (attrs) {
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299 | for (var i = 0; i < attrs.length; i += 2) {
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300 | var name_3 = attrs[i];
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301 | var value = attrs[i + 1];
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302 | var terminalValuesMap = this._attrValueMap.get(name_3);
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303 | if (value) {
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304 | result =
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305 | this._matchTerminal(terminalValuesMap, '', cssSelector, matchedCallback) || result;
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306 | }
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307 | result =
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308 | this._matchTerminal(terminalValuesMap, value, cssSelector, matchedCallback) || result;
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309 | var partialValuesMap = this._attrValuePartialMap.get(name_3);
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310 | if (value) {
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311 | result = this._matchPartial(partialValuesMap, '', cssSelector, matchedCallback) || result;
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312 | }
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313 | result =
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314 | this._matchPartial(partialValuesMap, value, cssSelector, matchedCallback) || result;
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315 | }
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316 | }
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317 | return result;
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318 | };
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319 | /** @internal */
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320 | SelectorMatcher.prototype._matchTerminal = function (map, name, cssSelector, matchedCallback) {
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321 | if (!map || typeof name !== 'string') {
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322 | return false;
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323 | }
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324 | var selectables = map.get(name) || [];
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325 | var starSelectables = map.get('*');
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326 | if (starSelectables) {
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327 | selectables = selectables.concat(starSelectables);
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328 | }
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329 | if (selectables.length === 0) {
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330 | return false;
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331 | }
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332 | var selectable;
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333 | var result = false;
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334 | for (var i = 0; i < selectables.length; i++) {
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335 | selectable = selectables[i];
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336 | result = selectable.finalize(cssSelector, matchedCallback) || result;
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337 | }
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338 | return result;
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339 | };
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340 | /** @internal */
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341 | SelectorMatcher.prototype._matchPartial = function (map, name, cssSelector, matchedCallback) {
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342 | if (!map || typeof name !== 'string') {
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343 | return false;
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344 | }
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345 | var nestedSelector = map.get(name);
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346 | if (!nestedSelector) {
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347 | return false;
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348 | }
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349 | // TODO(perf): get rid of recursion and measure again
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350 | // TODO(perf): don't pass the whole selector into the recursion,
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351 | // but only the not processed parts
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352 | return nestedSelector.match(cssSelector, matchedCallback);
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353 | };
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354 | return SelectorMatcher;
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355 | }());
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356 | exports.SelectorMatcher = SelectorMatcher;
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357 | var SelectorListContext = /** @class */ (function () {
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358 | function SelectorListContext(selectors) {
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359 | this.selectors = selectors;
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360 | this.alreadyMatched = false;
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361 | }
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362 | return SelectorListContext;
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363 | }());
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364 | exports.SelectorListContext = SelectorListContext;
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365 | // Store context to pass back selector and context when a selector is matched
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366 | var SelectorContext = /** @class */ (function () {
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367 | function SelectorContext(selector, cbContext, listContext) {
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368 | this.selector = selector;
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369 | this.cbContext = cbContext;
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370 | this.listContext = listContext;
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371 | this.notSelectors = selector.notSelectors;
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372 | }
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373 | SelectorContext.prototype.finalize = function (cssSelector, callback) {
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374 | var result = true;
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375 | if (this.notSelectors.length > 0 && (!this.listContext || !this.listContext.alreadyMatched)) {
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376 | var notMatcher = SelectorMatcher.createNotMatcher(this.notSelectors);
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377 | result = !notMatcher.match(cssSelector, null);
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378 | }
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379 | if (result && callback && (!this.listContext || !this.listContext.alreadyMatched)) {
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380 | if (this.listContext) {
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381 | this.listContext.alreadyMatched = true;
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382 | }
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383 | callback(this.selector, this.cbContext);
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384 | }
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385 | return result;
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386 | };
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387 | return SelectorContext;
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388 | }());
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389 | exports.SelectorContext = SelectorContext;
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390 | });
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391 | //# 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* @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {getHtmlTagDefinition} from './ml_parser/html_tags';\n\nconst _SELECTOR_REGEXP = new RegExp(\n    '(\\\\:not\\\\()|' +               // 1: \":not(\"\n        '(([\\\\.\\\\#]?)[-\\\\w]+)|' +  // 2: \"tag\"; 3: \".\"/\"#\";\n        // \"-\" should appear first in the regexp below as FF31 parses \"[.-\\w]\" as a range\n        // 4: attribute; 5: attribute_string; 6: attribute_value\n        '(?:\\\\[([-.\\\\w*]+)(?:=([\\\"\\']?)([^\\\\]\\\"\\']*)\\\\5)?\\\\])|' +  // \"[name]\", \"[name=value]\",\n                                                                   // \"[name=\"value\"]\",\n                                                                   // \"[name='value']\"\n        '(\\\\))|' +                                                 // 7: \")\"\n        '(\\\\s*,\\\\s*)',                                             // 8: \",\"\n    'g');\n\n/**\n * These offsets should match the match-groups in `_SELECTOR_REGEXP` offsets.\n */\nconst enum SelectorRegexp {\n  ALL = 0,  // The whole match\n  NOT = 1,\n  TAG = 2,\n  PREFIX = 3,\n  ATTRIBUTE = 4,\n  ATTRIBUTE_STRING = 5,\n  ATTRIBUTE_VALUE = 6,\n  NOT_END = 7,\n  SEPARATOR = 8,\n}\n/**\n * A css selector contains an element name,\n * css classes and attribute/value pairs with the purpose\n * of selecting subsets out of them.\n */\nexport class CssSelector {\n  element: string|null = null;\n  classNames: string[] = [];\n  /**\n   * The selectors are encoded in pairs where:\n   * - even locations are attribute names\n   * - odd locations are attribute values.\n   *\n   * Example:\n   * Selector: `[key1=value1][key2]` would parse to:\n   * ```\n   * ['key1', 'value1', 'key2', '']\n   * ```\n   */\n  attrs: string[] = [];\n  notSelectors: CssSelector[] = [];\n\n  static parse(selector: string): CssSelector[] {\n    const results: CssSelector[] = [];\n    const _addResult = (res: CssSelector[], cssSel: CssSelector) => {\n      if (cssSel.notSelectors.length > 0 && !cssSel.element && cssSel.classNames.length == 0 &&\n          cssSel.attrs.length == 0) {\n        cssSel.element = '*';\n      }\n      res.push(cssSel);\n    };\n    let cssSelector = new CssSelector();\n    let match: string[]|null;\n    let current = cssSelector;\n    let inNot = false;\n    _SELECTOR_REGEXP.lastIndex = 0;\n    while (match = _SELECTOR_REGEXP.exec(selector)) {\n      if (match[SelectorRegexp.NOT]) {\n        if (inNot) {\n          throw new Error('Nesting :not in a selector is not allowed');\n        }\n        inNot = true;\n        current = new CssSelector();\n        cssSelector.notSelectors.push(current);\n      }\n      const tag = match[SelectorRegexp.TAG];\n      if (tag) {\n        const prefix = match[SelectorRegexp.PREFIX];\n        if (prefix === '#') {\n          // #hash\n          current.addAttribute('id', tag.substr(1));\n        } else if (prefix === '.') {\n          // Class\n          current.addClassName(tag.substr(1));\n        } else {\n          // Element\n          current.setElement(tag);\n        }\n      }\n      const attribute = match[SelectorRegexp.ATTRIBUTE];\n      if (attribute) {\n        current.addAttribute(attribute, match[SelectorRegexp.ATTRIBUTE_VALUE]);\n      }\n      if (match[SelectorRegexp.NOT_END]) {\n        inNot = false;\n        current = cssSelector;\n      }\n      if (match[SelectorRegexp.SEPARATOR]) {\n        if (inNot) {\n          throw new Error('Multiple selectors in :not are not supported');\n        }\n        _addResult(results, cssSelector);\n        cssSelector = current = new CssSelector();\n      }\n    }\n    _addResult(results, cssSelector);\n    return results;\n  }\n\n  isElementSelector(): boolean {\n    return this.hasElementSelector() && this.classNames.length == 0 && this.attrs.length == 0 &&\n        this.notSelectors.length === 0;\n  }\n\n  hasElementSelector(): boolean {\n    return !!this.element;\n  }\n\n  setElement(element: string|null = null) {\n    this.element = element;\n  }\n\n  /** Gets a template string for an element that matches the selector. */\n  getMatchingElementTemplate(): string {\n    const tagName = this.element || 'div';\n    const classAttr = this.classNames.length > 0 ? ` class=\"${this.classNames.join(' ')}\"` : '';\n\n    let attrs = '';\n    for (let i = 0; i < this.attrs.length; i += 2) {\n      const attrName = this.attrs[i];\n      const attrValue = this.attrs[i + 1] !== '' ? `=\"${this.attrs[i + 1]}\"` : '';\n      attrs += ` ${attrName}${attrValue}`;\n    }\n\n    return getHtmlTagDefinition(tagName).isVoid ? `<${tagName}${classAttr}${attrs}/>` :\n                                                  `<${tagName}${classAttr}${attrs}></${tagName}>`;\n  }\n\n  getAttrs(): string[] {\n    const result: string[] = [];\n    if (this.classNames.length > 0) {\n      result.push('class', this.classNames.join(' '));\n    }\n    return result.concat(this.attrs);\n  }\n\n  addAttribute(name: string, value: string = '') {\n    this.attrs.push(name, value && value.toLowerCase() || '');\n  }\n\n  addClassName(name: string) {\n    this.classNames.push(name.toLowerCase());\n  }\n\n  toString(): string {\n    let res: string = this.element || '';\n    if (this.classNames) {\n      this.classNames.forEach(klass => res += `.${klass}`);\n    }\n    if (this.attrs) {\n      for (let i = 0; i < this.attrs.length; i += 2) {\n        const name = this.attrs[i];\n        const value = this.attrs[i + 1];\n        res += `[${name}${value ? '=' + value : ''}]`;\n      }\n    }\n    this.notSelectors.forEach(notSelector => res += `:not(${notSelector})`);\n    return res;\n  }\n}\n\n/**\n * Reads a list of CssSelectors and allows to calculate which ones\n * are contained in a given CssSelector.\n */\nexport class SelectorMatcher<T = any> {\n  static createNotMatcher(notSelectors: CssSelector[]): SelectorMatcher<null> {\n    const notMatcher = new SelectorMatcher<null>();\n    notMatcher.addSelectables(notSelectors, null);\n    return notMatcher;\n  }\n\n  private _elementMap = new Map<string, SelectorContext<T>[]>();\n  private _elementPartialMap = new Map<string, SelectorMatcher<T>>();\n  private _classMap = new Map<string, SelectorContext<T>[]>();\n  private _classPartialMap = new Map<string, SelectorMatcher<T>>();\n  private _attrValueMap = new Map<string, Map<string, SelectorContext<T>[]>>();\n  private _attrValuePartialMap = new Map<string, Map<string, SelectorMatcher<T>>>();\n  private _listContexts: SelectorListContext[] = [];\n\n  addSelectables(cssSelectors: CssSelector[], callbackCtxt?: T) {\n    let listContext: SelectorListContext = null!;\n    if (cssSelectors.length > 1) {\n      listContext = new SelectorListContext(cssSelectors);\n      this._listContexts.push(listContext);\n    }\n    for (let i = 0; i < cssSelectors.length; i++) {\n      this._addSelectable(cssSelectors[i], callbackCtxt as T, listContext);\n    }\n  }\n\n  /**\n   * Add an object that can be found later on by calling `match`.\n   * @param cssSelector A css selector\n   * @param callbackCtxt An opaque object that will be given to the callback of the `match` function\n   */\n  private _addSelectable(\n      cssSelector: CssSelector, callbackCtxt: T, listContext: SelectorListContext) {\n    let matcher: SelectorMatcher<T> = this;\n    const element = cssSelector.element;\n    const classNames = cssSelector.classNames;\n    const attrs = cssSelector.attrs;\n    const selectable = new SelectorContext(cssSelector, callbackCtxt, listContext);\n\n    if (element) {\n      const isTerminal = attrs.length === 0 && classNames.length === 0;\n      if (isTerminal) {\n        this._addTerminal(matcher._elementMap, element, selectable);\n      } else {\n        matcher = this._addPartial(matcher._elementPartialMap, element);\n      }\n    }\n\n    if (classNames) {\n      for (let i = 0; i < classNames.length; i++) {\n        const isTerminal = attrs.length === 0 && i === classNames.length - 1;\n        const className = classNames[i];\n        if (isTerminal) {\n          this._addTerminal(matcher._classMap, className, selectable);\n        } else {\n          matcher = this._addPartial(matcher._classPartialMap, className);\n        }\n      }\n    }\n\n    if (attrs) {\n      for (let i = 0; i < attrs.length; i += 2) {\n        const isTerminal = i === attrs.length - 2;\n        const name = attrs[i];\n        const value = attrs[i + 1];\n        if (isTerminal) {\n          const terminalMap = matcher._attrValueMap;\n          let terminalValuesMap = terminalMap.get(name);\n          if (!terminalValuesMap) {\n            terminalValuesMap = new Map<string, SelectorContext<T>[]>();\n            terminalMap.set(name, terminalValuesMap);\n          }\n          this._addTerminal(terminalValuesMap, value, selectable);\n        } else {\n          const partialMap = matcher._attrValuePartialMap;\n          let partialValuesMap = partialMap.get(name);\n          if (!partialValuesMap) {\n            partialValuesMap = new Map<string, SelectorMatcher<T>>();\n            partialMap.set(name, partialValuesMap);\n          }\n          matcher = this._addPartial(partialValuesMap, value);\n        }\n      }\n    }\n  }\n\n  private _addTerminal(\n      map: Map<string, SelectorContext<T>[]>, name: string, selectable: SelectorContext<T>) {\n    let terminalList = map.get(name);\n    if (!terminalList) {\n      terminalList = [];\n      map.set(name, terminalList);\n    }\n    terminalList.push(selectable);\n  }\n\n  private _addPartial(map: Map<string, SelectorMatcher<T>>, name: string): SelectorMatcher<T> {\n    let matcher = map.get(name);\n    if (!matcher) {\n      matcher = new SelectorMatcher<T>();\n      map.set(name, matcher);\n    }\n    return matcher;\n  }\n\n  /**\n   * Find the objects that have been added via `addSelectable`\n   * whose css selector is contained in the given css selector.\n   * @param cssSelector A css selector\n   * @param matchedCallback This callback will be called with the object handed into `addSelectable`\n   * @return boolean true if a match was found\n   */\n  match(cssSelector: CssSelector, matchedCallback: ((c: CssSelector, a: T) => void)|null): boolean {\n    let result = false;\n    const element = cssSelector.element!;\n    const classNames = cssSelector.classNames;\n    const attrs = cssSelector.attrs;\n\n    for (let i = 0; i < this._listContexts.length; i++) {\n      this._listContexts[i].alreadyMatched = false;\n    }\n\n    result = this._matchTerminal(this._elementMap, element, cssSelector, matchedCallback) || result;\n    result = this._matchPartial(this._elementPartialMap, element, cssSelector, matchedCallback) ||\n        result;\n\n    if (classNames) {\n      for (let i = 0; i < classNames.length; i++) {\n        const className = classNames[i];\n        result =\n            this._matchTerminal(this._classMap, className, cssSelector, matchedCallback) || result;\n        result =\n            this._matchPartial(this._classPartialMap, className, cssSelector, matchedCallback) ||\n            result;\n      }\n    }\n\n    if (attrs) {\n      for (let i = 0; i < attrs.length; i += 2) {\n        const name = attrs[i];\n        const value = attrs[i + 1];\n\n        const terminalValuesMap = this._attrValueMap.get(name)!;\n        if (value) {\n          result =\n              this._matchTerminal(terminalValuesMap, '', cssSelector, matchedCallback) || result;\n        }\n        result =\n            this._matchTerminal(terminalValuesMap, value, cssSelector, matchedCallback) || result;\n\n        const partialValuesMap = this._attrValuePartialMap.get(name)!;\n        if (value) {\n          result = this._matchPartial(partialValuesMap, '', cssSelector, matchedCallback) || result;\n        }\n        result =\n            this._matchPartial(partialValuesMap, value, cssSelector, matchedCallback) || result;\n      }\n    }\n    return result;\n  }\n\n  /** @internal */\n  _matchTerminal(\n      map: Map<string, SelectorContext<T>[]>, name: string, cssSelector: CssSelector,\n      matchedCallback: ((c: CssSelector, a: any) => void)|null): boolean {\n    if (!map || typeof name !== 'string') {\n      return false;\n    }\n\n    let selectables: SelectorContext<T>[] = map.get(name) || [];\n    const starSelectables: SelectorContext<T>[] = map.get('*')!;\n    if (starSelectables) {\n      selectables = selectables.concat(starSelectables);\n    }\n    if (selectables.length === 0) {\n      return false;\n    }\n    let selectable: SelectorContext<T>;\n    let result = false;\n    for (let i = 0; i < selectables.length; i++) {\n      selectable = selectables[i];\n      result = selectable.finalize(cssSelector, matchedCallback) || result;\n    }\n    return result;\n  }\n\n  /** @internal */\n  _matchPartial(\n      map: Map<string, SelectorMatcher<T>>, name: string, cssSelector: CssSelector,\n      matchedCallback: ((c: CssSelector, a: any) => void)|null): boolean {\n    if (!map || typeof name !== 'string') {\n      return false;\n    }\n\n    const nestedSelector = map.get(name);\n    if (!nestedSelector) {\n      return false;\n    }\n    // TODO(perf): get rid of recursion and measure again\n    // TODO(perf): don't pass the whole selector into the recursion,\n    // but only the not processed parts\n    return nestedSelector.match(cssSelector, matchedCallback);\n  }\n}\n\n\nexport class SelectorListContext {\n  alreadyMatched: boolean = false;\n\n  constructor(public selectors: CssSelector[]) {}\n}\n\n// Store context to pass back selector and context when a selector is matched\nexport class SelectorContext<T = any> {\n  notSelectors: CssSelector[];\n\n  constructor(\n      public selector: CssSelector, public cbContext: T, public listContext: SelectorListContext) {\n    this.notSelectors = selector.notSelectors;\n  }\n\n  finalize(cssSelector: CssSelector, callback: ((c: CssSelector, a: T) => void)|null): boolean {\n    let result = true;\n    if (this.notSelectors.length > 0 && (!this.listContext || !this.listContext.alreadyMatched)) {\n      const notMatcher = SelectorMatcher.createNotMatcher(this.notSelectors);\n      result = !notMatcher.match(cssSelector, null);\n    }\n    if (result && callback && (!this.listContext || !this.listContext.alreadyMatched)) {\n      if (this.listContext) {\n        this.listContext.alreadyMatched = true;\n      }\n      callback(this.selector, this.cbContext);\n    }\n    return result;\n  }\n}\n"]} |
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