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Current File : /home/lightco1/luminero.com.au/media/lib_compojoom/third/polyfills/template.js

(function() {
	var support = ("content" in document.createElement("template"));

	// Set the content property if missing
	if (!support) {
		var
			/**
			 * Prefer an array to a NodeList
			 * Otherwise, updating the content property of a node
			 * will update the NodeList and we'll loose the nested <template>
			 */
			templates = Array.prototype.slice.call(document.getElementsByTagName("template")),
			template, content, fragment, node, i = 0, j;

		// For each <template> element get its content and wrap it in a document fragment
		while ((template = templates[i++])) {
			content  = template.children;
			fragment = document.createDocumentFragment();

			for (j = 0; node = content[j]; j++) {
				fragment.appendChild(node);
			}

			template.content = fragment;
		}
	}

	// Prepare a clone function to allow nested <template> elements
	function clone() {
		var
			templates = this.querySelectorAll("template"),
			fragments = [],
			template,
			i = 0;

		// If the support is OK simply clone and return
		if (support) {
			template  = this.cloneNode(true);
			templates = template.content.querySelectorAll("template");

			// Set the clone method for each nested <template> element
			for (; templates[i]; i++) {
				templates[i].clone = clone;
			}

			return template;
		}

		// Loop through nested <template> to retrieve the content property
		for (; templates[i]; i++) {
			fragments.push(templates[i].content);
		}

		// Now, clone the document fragment
		template = this.cloneNode(true);

		// Makes sure the clone have a "content" and "clone" properties
		template.content = this.content;
		template.clone   = clone;

		/**
		 * Retrieve the nested <template> once again
		 * Since we just cloned the document fragment,
		 * the content's property of the nested <template> might be undefined
		 * We have to re-set it using the fragment array we previously got
		 */
		templates = template.querySelectorAll("template");

		// Loop to set the content property of each nested template
		for (i = 0; templates[i]; i++) {
			templates[i].content = fragments[i];
			templates[i].clone   = clone; // Makes sure to set the clone method as well
		}

		return template;
	}

	var
		templates = document.querySelectorAll("template"),
		template, i = 0;

	// Pollute the DOM with a "clone" method on each <template> element
	while ((template = templates[i++])) {
		template.clone = clone;
	}
}());

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