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-rw-r--r--html/DOM_helpers.js41
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diff --git a/html/DOM_helpers.js b/html/DOM_helpers.js
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+/**
+ * Hachette operations on DOM elements
+ *
+ * Copyright (C) 2021 Wojtek Kosior
+ * Redistribution terms are gathered in the `copyright' file.
+ */
+
+function by_id(id)
+{
+ return document.getElementById(id);
+}
+
+function clone_template(template_id)
+{
+ const clone = document.getElementById(template_id).cloneNode(true);
+ const result_object = {};
+ const to_process = [clone];
+
+ while (to_process.length > 0) {
+ const element = to_process.pop();
+ const template_key = element.getAttribute("data-template");
+
+ if (template_key)
+ result_object[template_key] = element;
+
+ element.removeAttribute("id");
+ element.removeAttribute("template_key");
+
+ for (const child of element.children)
+ to_process.push(child);
+ }
+
+ return result_object;
+}
+
+/*
+ * EXPORTS_START
+ * EXPORT by_id
+ * EXPORT clone_template
+ * EXPORTS_END
+ */