Ny structure. Start of the "main" branch

Utils/EEPROM_generator/src/backup.js

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+/**
+ * SOES EEPROM generator
+ * Project backup save and restore
+
+ * This tool serves as:
+- EtherCAT Slave Information XML + EEPROM binary generator
+- SOES code generator
+
+ * Victor Sluiter 2013-2018
+ * Kuba Buda 2020-2021
+ */
+'use strict'
+
+// ####################### Backup serialization + deserialization ####################### //
+
+function isValidBackup(backup) {
+	if (!backup || !backup.form || !backup.od ) {
+		if (!confirm('Backup is incomplete or invalid, proceed anyway?')) {
+			return false;
+		}
+	}
+	return true;
+}
+
+function prepareBackupObject(form) {
+	const formValues = {};
+	if (form) {
+		Object.entries(form).forEach(formEntry => {
+			const formControl = formEntry[1]; // entry[0] is form control order number
+			if(isBackedUp(formControl) && formControl.value) {
+				formValues[formControl.name] = formControl.value;
+			};
+		});
+	}
+
+	const backup = {
+		form: formValues,
+		od: getObjDict(),
+		dc: _dc,
+	};
+
+	return backup;
+}
+
+function isBackedUp(formControl) {
+	return formControl.type != "button";
+}
+
+function loadBackup(backupObject, form) {
+	if (backupObject.od) {
+		setObjDictSection(sdo, backupObject.od.sdo);
+		setObjDictSection(txpdo, backupObject.od.txpdo);
+		setObjDictSection(rxpdo, backupObject.od.rxpdo);
+	}
+
+	if (backupObject.dc) {
+		_dc = backupObject.dc;
+	}
+	
+	setFormValues(form, backupObject);
+}
+
+function setFormValues(form, backupObject) {
+	if (form) {
+		Object.entries(form).forEach(formEntry => {
+			const formControl = formEntry[1]; // entry[0] is index
+			const formControlValue = backupObject.form[formControl.name];
+			if (isBackedUp(formControl) && formControlValue) {
+				setFormControlValue(formControl, formControlValue);
+			};
+		});
+	}
+}
+
+function setFormControlValue(formControl, formControlValue) {
+	if (formControl.name.startsWith('CoeDetailsEnable')) {
+		if (formControlValue == true) {
+			formControl.checked = true;
+		} else {
+		}
+	} else {
+		formControl.value = formControlValue;
+	}
+}
+
+function prepareBackupFileContent(form) {
+	var backupObject = prepareBackupObject(form);
+	var backupFileContent = JSON.stringify(backupObject, null, 2); // pretty print
+	return backupFileContent;
+}
+
+// ####################### Backup using JSON file from filesystem ####################### //
+
+// Localstorage limit is usually 5MB, super large object dictionaries on older browsers might be problematic
+
+function downloadBackupFile(form) {
+	const backupFileContent = prepareBackupFileContent(form); // pretty print
+	downloadFile(backupFileContent, 'esi.json', 'text/json');
+}
+
+function restoreBackup(fileContent, form) {
+	var backup = JSON.parse(fileContent);
+	if (isValidBackup(backup)) {
+		loadBackup(backup, form);
+		reloadOD_Sections();
+		reloadSyncModes()
+	}
+}
+
+// ####################### Backup using browser localstorage ####################### //
+
+/** persist OD and settings changes over page reload */
+function saveLocalBackup(form) {
+	localStorage.etherCATeepromGeneratorBackup = prepareBackupFileContent(form);
+}
+
+function tryRestoreLocalBackup(form) {
+	if (localStorage.etherCATeepromGeneratorBackup)  {
+		restoreBackup(localStorage.etherCATeepromGeneratorBackup, form);
+	}	
+}
+
+function resetLocalBackup() {
+	if (localStorage.etherCATeepromGeneratorBackup) {
+		delete localStorage.etherCATeepromGeneratorBackup;
+	}
+}