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fields.js
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fields.js
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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
import * as Environments from '../environments/environments.js';
import * as Utils from '../utils.js';
let theFieldIndex = -1;
const dom = {
fieldPath: null,
fieldLabel: null,
fieldList: null,
fieldsModal: null,
};
/**
* Create a Ditto search query parameter from the active fields
* @return {String} The fields query parameter for Ditto search
*/
export function getQueryParameter() {
const fields = Environments.current().fieldList.filter((f) => f.active).map((f) => f.path);
return 'fields=thingId' + (fields !== '' ? ',' + fields : '');
};
let bsFieldsModal = null;
/**
* Set the fieldpath value
* @param {String} fieldPath new value for the fieldpath
*/
export function proposeNewField(fieldPath) {
dom.fieldPath.value = fieldPath;
dom.fieldLabel.value = null;
if (!bsFieldsModal) {
bsFieldsModal = new bootstrap.Modal(dom.fieldsModal);
}
bsFieldsModal.show();
}
/**
* Initializes components. Should be called after DOMContentLoaded event
*/
export async function ready() {
Environments.addChangeListener(onEnvironmentChanged);
Utils.getAllElementsById(dom);
dom.fieldList.addEventListener('click', (event) => {
if (event.target && event.target.tagName === 'TD') {
toggleFieldSelection(event.target.parentNode.rowIndex);
}
});
dom.fieldsModal.addEventListener('hide.bs.modal', () => {
Environments.environmentsJsonChanged();
});
document.getElementById('fieldUpdate').onclick = () => {
Utils.assert(theFieldIndex >= 0, 'No field selected');
const selectedField = Environments.current().fieldList[theFieldIndex];
Utils.assert(!Environments.current().fieldList
.filter((elem, i) => i != theFieldIndex)
.map((field) => field.path)
.includes(selectedField.path), 'Changed field path already exists', dom.fieldPath);
selectedField.path = dom.fieldPath.value;
selectedField.label = dom.fieldLabel.value;
updateFieldList();
};
document.getElementById('fieldCreate').onclick = () => {
Utils.assert(dom.fieldPath.value, 'Field path must not be empty', dom.fieldPath);
Utils.assert(!Environments.current().fieldList
.map((field) => field.path)
.includes(dom.fieldPath.value), 'Field path already exists', dom.fieldPath);
Environments.current().fieldList.push({
active: true,
path: dom.fieldPath.value,
label: dom.fieldPath.value.split('/').slice(-1)[0],
});
updateFieldList();
};
document.getElementById('fieldDelete').onclick = () => {
Utils.assert(theFieldIndex >= 0, 'No field selected');
Environments.current().fieldList.splice(theFieldIndex, 1);
updateFieldList();
theFieldIndex = -1;
};
document.getElementById('fieldUp').onclick = () => {
if (theFieldIndex <= 0) {
return;
}
const movedItem = Environments.current().fieldList[theFieldIndex];
Environments.current().fieldList.splice(theFieldIndex, 1);
theFieldIndex--;
Environments.current().fieldList.splice(theFieldIndex, 0, movedItem);
updateFieldList();
};
document.getElementById('fieldDown').onclick = () => {
if (theFieldIndex < 0 || theFieldIndex === Environments.current().fieldList.length - 1) {
return;
}
const movedItem = Environments.current().fieldList[theFieldIndex];
Environments.current().fieldList.splice(theFieldIndex, 1);
theFieldIndex++;
Environments.current().fieldList.splice(theFieldIndex, 0, movedItem);
updateFieldList();
};
};
/**
* Selects or de-selects the field for editing
* @param {integer} fieldIndex index in fieldlist of field to toggle
*/
function toggleFieldSelection(fieldIndex) {
if (theFieldIndex === fieldIndex) {
theFieldIndex = -1;
dom.fieldPath.value = null;
dom.fieldLabel.value = null;
} else {
theFieldIndex = fieldIndex;
const selectedField = Environments.current().fieldList[theFieldIndex];
dom.fieldPath.value = selectedField.path;
dom.fieldLabel.value = selectedField['label'] ? selectedField.label : null;
}
}
/**
* Callback on environment change. Initializes all UI components for fields
*/
function onEnvironmentChanged() {
if (!Environments.current()['fieldList']) {
Environments.current().fieldList = [];
};
updateFieldList();
};
/**
* (Re-)Initializes the fieldlist in the UI
*/
function updateFieldList() {
dom.fieldList.innerHTML = '';
theFieldIndex = -1;
Environments.current().fieldList.forEach((field, i) => {
const fieldSelected = dom.fieldPath.value === field.path;
const row = dom.fieldList.insertRow();
Utils.addCheckboxToRow(row, i, field.active, toggleFieldActiveEventHandler);
row.insertCell(-1).innerHTML = field.path;
row.insertCell(-1).innerHTML = field['label'] ? field.label : null;
if (fieldSelected) {
theFieldIndex = i;
row.classList.add('table-active');
dom.fieldLabel.value = field.label;
}
});
if (theFieldIndex < 0) {
dom.fieldPath.value = null;
dom.fieldLabel.value = null;
}
};
/**
* Event handler for field active check box
* @param {Object} evt checkbox click event
*/
function toggleFieldActiveEventHandler(evt) {
Environments.current().fieldList[evt.target.id].active = evt.target.checked;
updateFieldList();
};