📦 Renamed freesewing pkg to @freesewing/core

packages/core/src/attributes.js

@@ -0,0 +1,83 @@
+function Attributes() {
+  this.list = {};
+}
+
+/** Adds an attribute */
+Attributes.prototype.add = function(name, value) {
+  if (typeof this.list[name] === "undefined") {
+    this.list[name] = [];
+  }
+  this.list[name].push(value);
+
+  return this;
+};
+
+/** Sets an attribute, overwriting existing value */
+Attributes.prototype.set = function(name, value) {
+  this.list[name] = [value];
+
+  return this;
+};
+
+/** Removes an attribute */
+Attributes.prototype.remove = function(name) {
+  delete this.list[name];
+
+  return this;
+};
+
+/** Retrieves an attribute */
+Attributes.prototype.get = function(name) {
+  if (typeof this.list[name] === "undefined") return false;
+  else return this.list[name].join(" ");
+};
+
+/** Retrieves an attribute as array*/
+Attributes.prototype.getAsArray = function(name) {
+  if (typeof this.list[name] === "undefined") return false;
+  else return this.list[name];
+};
+
+/** Returns SVG code for attributes */
+Attributes.prototype.render = function() {
+  let svg = "";
+  for (let key in this.list) {
+    svg += ` ${key}="${this.list[key].join(" ")}"`;
+  }
+
+  return svg;
+};
+
+/** Returns CSS code for attributes */
+Attributes.prototype.renderAsCss = function() {
+  let css = "";
+  for (let key in this.list) {
+    css += ` ${key}:${this.list[key].join(" ")};`;
+  }
+
+  return css;
+};
+
+/** Returns SVG code for attributes with a fiven prefix
+ * typically used for data-text*/
+Attributes.prototype.renderIfPrefixIs = function(prefix = "") {
+  let svg = "";
+  let prefixLen = prefix.length;
+  for (let key in this.list) {
+    if (key.substr(0, prefixLen) === prefix) {
+      svg += ` ${key.substr(prefixLen)}="${this.list[key].join(" ")}"`;
+    }
+  }
+
+  return svg;
+};
+
+/** Returns a deep copy of this */
+Attributes.prototype.clone = function() {
+  let clone = new Attributes();
+  clone.list = JSON.parse(JSON.stringify(this.list));
+
+  return clone;
+};
+
+export default Attributes;