1 files changed, 247 insertions, 0 deletions
diff --git a/vanilla/node_modules/@acemir/cssom/lib/CSSKeyframesRule.js b/vanilla/node_modules/@acemir/cssom/lib/CSSKeyframesRule.js
new file mode 100644
index 0000000..a98cd78
--- /dev/null
+++ b/vanilla/node_modules/@acemir/cssom/lib/CSSKeyframesRule.js
@@ -0,0 +1,247 @@
+//.CommonJS
+var CSSOM = {
+	CSSRule: require("./CSSRule").CSSRule,
+	CSSRuleList: require("./CSSRuleList").CSSRuleList,
+	parse: require("./parse").parse
+};
+var errorUtils = require("./errorUtils").errorUtils;
+///CommonJS
+
+
+/**
+ * @constructor
+ * @see http://www.w3.org/TR/css3-animations/#DOM-CSSKeyframesRule
+ */
+CSSOM.CSSKeyframesRule = function CSSKeyframesRule() {
+	CSSOM.CSSRule.call(this);
+	this.name = '';
+	this.cssRules = new CSSOM.CSSRuleList();
+	
+	// Set up initial indexed access
+	this._setupIndexedAccess();
+	
+	// Override cssRules methods after initial setup, store references as non-enumerable properties
+	var self = this;
+	var originalPush = this.cssRules.push;
+	var originalSplice = this.cssRules.splice;
+	
+	// Create non-enumerable method overrides
+	Object.defineProperty(this.cssRules, 'push', {
+		value: function() {
+			var result = originalPush.apply(this, arguments);
+			self._setupIndexedAccess();
+			return result;
+		},
+		writable: true,
+		enumerable: false,
+		configurable: true
+	});
+	
+	Object.defineProperty(this.cssRules, 'splice', {
+		value: function() {
+			var result = originalSplice.apply(this, arguments);
+			self._setupIndexedAccess();
+			return result;
+		},
+		writable: true,
+		enumerable: false,
+		configurable: true
+	});
+};
+
+CSSOM.CSSKeyframesRule.prototype = Object.create(CSSOM.CSSRule.prototype);
+CSSOM.CSSKeyframesRule.prototype.constructor = CSSOM.CSSKeyframesRule;
+
+Object.setPrototypeOf(CSSOM.CSSKeyframesRule, CSSOM.CSSRule);
+
+Object.defineProperty(CSSOM.CSSKeyframesRule.prototype, "type", {
+	value: 7,
+	writable: false
+});
+
+// http://www.opensource.apple.com/source/WebCore/WebCore-955.66.1/css/WebKitCSSKeyframesRule.cpp
+Object.defineProperty(CSSOM.CSSKeyframesRule.prototype, "cssText", {
+  get: function() {
+    var values = "";
+	var valuesArr = [" {"];
+	if (this.cssRules.length) {
+	valuesArr.push(this.cssRules.reduce(function(acc, rule){ 
+		if (rule.cssText !== "") {
+		acc.push(rule.cssText);
+		}
+		return acc;
+	}, []).join("\n  "));
+	}
+	values = valuesArr.join("\n  ") + "\n}";
+    var cssWideKeywords = ['initial', 'inherit', 'revert', 'revert-layer', 'unset', 'none'];
+    var processedName = cssWideKeywords.includes(this.name) ? '"' + this.name + '"' : this.name;
+    return "@" + (this._vendorPrefix || '') + "keyframes " + processedName + values;
+  }
+});
+
+/**
+ * Appends a new keyframe rule to the list of keyframes.
+ * 
+ * @param {string} rule - The keyframe rule string to append (e.g., "50% { opacity: 0.5; }")
+ * @see https://www.w3.org/TR/css-animations-1/#dom-csskeyframesrule-appendrule
+ */
+CSSOM.CSSKeyframesRule.prototype.appendRule = function appendRule(rule) {
+	if (arguments.length === 0) {
+		errorUtils.throwMissingArguments(this, 'appendRule', 'CSSKeyframesRule');
+	}
+	
+	var parsedRule;
+	try {
+		// Parse the rule string as a keyframe rule
+		var tempStyleSheet = CSSOM.parse("@keyframes temp { " + rule + " }");
+		if (tempStyleSheet.cssRules.length > 0 && tempStyleSheet.cssRules[0].cssRules.length > 0) {
+			parsedRule = tempStyleSheet.cssRules[0].cssRules[0];
+		} else {
+			throw new Error("Failed to parse keyframe rule");
+		}
+	} catch (e) {
+		errorUtils.throwParseError(this, 'appendRule', 'CSSKeyframesRule', rule);
+	}
+	
+	parsedRule.__parentRule = this;
+	this.cssRules.push(parsedRule);
+};
+
+/**
+ * Deletes a keyframe rule that matches the specified key.
+ * 
+ * @param {string} select - The keyframe selector to delete (e.g., "50%", "from", "to")
+ * @see https://www.w3.org/TR/css-animations-1/#dom-csskeyframesrule-deleterule
+ */
+CSSOM.CSSKeyframesRule.prototype.deleteRule = function deleteRule(select) {
+	if (arguments.length === 0) {
+		errorUtils.throwMissingArguments(this, 'deleteRule', 'CSSKeyframesRule');
+	}
+	
+	var normalizedSelect = this._normalizeKeyText(select);
+	
+	for (var i = 0; i < this.cssRules.length; i++) {
+		var rule = this.cssRules[i];
+		if (this._normalizeKeyText(rule.keyText) === normalizedSelect) {
+			rule.__parentRule = null;
+			this.cssRules.splice(i, 1);
+			return;
+		}
+	}
+};
+
+/**
+ * Finds and returns the keyframe rule that matches the specified key.
+ * When multiple rules have the same key, returns the last one.
+ * 
+ * @param {string} select - The keyframe selector to find (e.g., "50%", "from", "to")
+ * @return {CSSKeyframeRule|null} The matching keyframe rule, or null if not found
+ * @see https://www.w3.org/TR/css-animations-1/#dom-csskeyframesrule-findrule
+ */
+CSSOM.CSSKeyframesRule.prototype.findRule = function findRule(select) {
+	if (arguments.length === 0) {
+		errorUtils.throwMissingArguments(this, 'findRule', 'CSSKeyframesRule');
+	}
+	
+	var normalizedSelect = this._normalizeKeyText(select);
+	
+	// Iterate backwards to find the last matching rule
+	for (var i = this.cssRules.length - 1; i >= 0; i--) {
+		var rule = this.cssRules[i];
+		if (this._normalizeKeyText(rule.keyText) === normalizedSelect) {
+			return rule;
+		}
+	}
+	
+	return null;
+};
+
+/**
+ * Normalizes keyframe selector text for comparison.
+ * Handles "from" -> "0%" and "to" -> "100%" conversions and trims whitespace.
+ * 
+ * @private
+ * @param {string} keyText - The keyframe selector text to normalize
+ * @return {string} The normalized keyframe selector text
+ */
+CSSOM.CSSKeyframesRule.prototype._normalizeKeyText = function _normalizeKeyText(keyText) {
+	if (!keyText) return '';
+	
+	var normalized = keyText.toString().trim().toLowerCase();
+	
+	// Convert keywords to percentages for comparison
+	if (normalized === 'from') {
+		return '0%';
+	} else if (normalized === 'to') {
+		return '100%';
+	}
+	
+	return normalized;
+};
+
+/**
+ * Makes CSSKeyframesRule iterable over its cssRules.
+ * Allows for...of loops and other iterable methods.
+ */
+if (typeof Symbol !== 'undefined' && Symbol.iterator) {
+	CSSOM.CSSKeyframesRule.prototype[Symbol.iterator] = function() {
+		var index = 0;
+		var cssRules = this.cssRules;
+		
+		return {
+			next: function() {
+				if (index < cssRules.length) {
+					return { value: cssRules[index++], done: false };
+				} else {
+					return { done: true };
+				}
+			}
+		};
+	};
+}
+
+/**
+ * Adds indexed getters for direct access to cssRules by index.
+ * This enables rule[0], rule[1], etc. access patterns.
+ * Works in environments where Proxy is not available (like jsdom).
+ */
+CSSOM.CSSKeyframesRule.prototype._setupIndexedAccess = function() {
+	// Remove any existing indexed properties
+	for (var i = 0; i < 1000; i++) { // reasonable upper limit
+		if (this.hasOwnProperty(i)) {
+			delete this[i];
+		} else {
+			break;
+		}
+	}
+	
+	// Add indexed getters for current cssRules
+	for (var i = 0; i < this.cssRules.length; i++) {
+		(function(index) {
+			Object.defineProperty(this, index, {
+				get: function() {
+					return this.cssRules[index];
+				},
+				enumerable: false,
+				configurable: true
+			});
+		}.call(this, i));
+	}
+	
+	// Update length property
+	Object.defineProperty(this, 'length', {
+		get: function() {
+			return this.cssRules.length;
+		},
+		enumerable: false,
+		configurable: true
+	});
+};
+
+
+
+
+
+//.CommonJS
+exports.CSSKeyframesRule = CSSOM.CSSKeyframesRule;
+///CommonJS