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easyjsonform.js
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easyjsonform.js
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class EasyJsonFormField {
constructor(json = null) {
if (json === null) json = {};
this.type = json.type || null;
this.label = json.label || '';
this.customattribute = json.customattribute || '';
this.mandatory = json.mandatory || false;
this.properties = json.properties || null;
this.value = (typeof json.value !== 'undefined') ? json.value : null;
}
builderEditor(ejf, updateCallback) {
// Creating editor
let editor = document.createElement('div');
Object.assign(editor.style,{
alignItems: 'center', display: 'grid', gridGap: '0.55rem',
gridTemplateColumns: 'min-content auto', padding:'1rem', whiteSpace: 'nowrap',
});
// Label field
let lblLabel = document.createElement('label');
lblLabel.htmlFor = EasyJsonForm.newElementId();
lblLabel.textContent = EasyJsonForm.dictionary['item.properties.label'];
let iptLabel = document.createElement('input');
iptLabel.id = EasyJsonForm.getElementId();
iptLabel.type = 'text';
iptLabel.value = this.label;
iptLabel.onchange = () => {
let labelCheckErrors = ejf.labelCheckErrors(iptLabel.value);
if (labelCheckErrors) {
alert(labelCheckErrors);
iptLabel.value = this.label;
} else {
this.label = iptLabel.value;
updateCallback();
}
};
editor.appendChild(lblLabel);
editor.appendChild(iptLabel);
// Custom attribute field
let lblCustomAttribute = document.createElement('label');
lblCustomAttribute.htmlFor = EasyJsonForm.newElementId();
lblCustomAttribute.textContent = EasyJsonForm.dictionary['item.properties.customattribute'];
let iptCustomAttribute = document.createElement('input');
iptCustomAttribute.id = EasyJsonForm.getElementId();
iptCustomAttribute.type = 'text';
iptCustomAttribute.value = this.customattribute;
iptCustomAttribute.onchange = () => {this.customattribute = iptCustomAttribute.value; updateCallback();};
editor.appendChild(lblCustomAttribute);
editor.appendChild(iptCustomAttribute);
// Mandatory field
let lblMandatory = document.createElement('label');
lblMandatory.htmlFor = EasyJsonForm.newElementId();
lblMandatory.textContent = EasyJsonForm.dictionary['item.properties.mandatory'];
let iptMandatory = document.createElement('input');
iptMandatory.id = EasyJsonForm.getElementId();
iptMandatory.type = 'checkbox';
iptMandatory.checked = this.mandatory;
iptMandatory.onchange = () => {this.mandatory = iptMandatory.checked; updateCallback();};
editor.appendChild(lblMandatory);
editor.appendChild(iptMandatory);
return editor;
}
helpText() {
return !this.mandatory ? '' :
EasyJsonForm.dictionary['common.helptext']
.replace('{{help-text}}', EasyJsonForm.dictionary['common.helptext.mandatory']);
}
validationErrorMessage(ejf) {
let validationInfo = this.validate().map(x => {
return EasyJsonForm.dictionary[x].replace('{{field-label}}', this.label);
}).join(EasyJsonForm.dictionary['common.helptext.separator']);
let lblValidation = ejf.element('div', 'ValidationErrorMessage');
lblValidation.textContent = validationInfo;
return lblValidation;
}
valueExport(ejf, mode = 'raw') {
switch (mode)
{
case 'html': return `<tr><td>${this.label}</td><td>${this.value || ''}</td></tr>`;
case 'raw': return this.value;
case 'simple': return [{key: this.label, value: this.value || ''}];
}
}
}
class EasyJsonFormFieldFile extends EasyJsonFormField {
constructor(json = null) {
super(json);
if (this.properties === null) this.properties =
{
filetypes: [], // array containing mimetypes
maxsize: 0, // nonnegative float values
};
this.type = 'file';
}
builderEditor(ejf, updateCallback) {
let editor = super.builderEditor(ejf, updateCallback);
// Max file size field
let lblMaxSize = document.createElement('label');
lblMaxSize.htmlFor = EasyJsonForm.newElementId();
lblMaxSize.textContent = EasyJsonForm.dictionary['item.file.properties.maxsize'];
let iptMaxSize = document.createElement('input');
iptMaxSize.id = EasyJsonForm.getElementId();
iptMaxSize.type = 'number';
iptMaxSize.min = 0;
iptMaxSize.step = 0.1;
iptMaxSize.value = this.properties.maxsize;
iptMaxSize.onchange = () => {this.properties.maxsize = iptMaxSize.value; updateCallback();};
editor.appendChild(lblMaxSize);
editor.appendChild(iptMaxSize);
// File types field
let lblFileTypes = document.createElement('label');
lblFileTypes.textContent = EasyJsonForm.dictionary['item.file.properties.filetypes'];
let divFileTypes = document.createElement('div');
for (const [fileType, properties] of Object.entries(EasyJsonForm.supportedFileTypes)) {
let cbxFileType = document.createElement('input');
cbxFileType.id = EasyJsonForm.newElementId();
cbxFileType.type = 'checkbox';
cbxFileType.checked = this.properties.filetypes.indexOf(fileType) > -1;
cbxFileType.onchange = () => {
if (cbxFileType.checked) this.properties.filetypes.push(fileType);
else this.properties.filetypes.splice(this.properties.filetypes.indexOf(fileType),1);
updateCallback();
};
let lblFileType = document.createElement('label');
lblFileType.htmlFor = EasyJsonForm.getElementId();
lblFileType.textContent = properties.extensions[0];
let divFileType = document.createElement('div');
divFileType.appendChild(cbxFileType);
divFileType.appendChild(lblFileType);
divFileTypes.appendChild(divFileType);
}
editor.appendChild(lblFileTypes);
editor.appendChild(divFileTypes);
return editor;
}
formFieldCreate(ejf, position, withValidation = false) {
let validationError = (withValidation && this.validate().length > 0);
let lblFormField = ejf.element('label', 'FieldFileLabel', validationError ? 'ValidationErrorLabel' : null);
lblFormField.innerHTML = `${this.label}${this.helpText()}`;
lblFormField.htmlFor = `${ejf.id}[${position}]`;
let formField = ejf.element('div', 'FieldFile');
formField.appendChild(lblFormField);
formField.appendChild(this.formFieldControl(ejf, position, formField, validationError));
if (validationError) formField.appendChild(this.validationErrorMessage(ejf));
return formField;
}
formFieldControl(ejf, position, formField, validationError) {
if (this.value === null) {
let iptFile = ejf.element('input', 'FieldFileInput', validationError ? 'ValidationErrorInput' : null);
iptFile.type = 'file';
iptFile.id = `${ejf.id}[${position}]`;
iptFile.name = `${ejf.id}[${position}]`;
iptFile.disabled = ejf.options.disabled || false;
if (!ejf.options.fileHandler) iptFile.disabled = true; // Disabled if no handler
else iptFile.onchange = () => {
ejf.options.fileHandler.upload(iptFile.files[0])
.then((result) => {
if (result.success) {
this.value = result.value;
formField.replaceChild(
this.formFieldControl(ejf, position, formField),
formField.children[1]
);
if (ejf.options.onValueChange) ejf.options.onValueChange();
}
});
};
return iptFile;
} else {
let iptFile = ejf.element('input');
iptFile.type = 'hidden';
iptFile.id = `${ejf.id}[${position}]`;
iptFile.name = `${ejf.id}[${position}]`;
iptFile.value = this.value;
let lnkFile = ejf.element('a', 'FieldFileLink');
lnkFile.textContent = (ejf.options.fileHandler) ?
ejf.options.fileHandler.displayName(this.value) : this.value;
lnkFile.href = (ejf.options.fileHandler) ?
ejf.options.fileHandler.url(this.value) : '#';
let btnClear = ejf.element('button', 'FieldFileClear');
btnClear.type = 'button';
if (!ejf.options.fileHandler) btnClear.disabled = true; // Disabled if no handler
btnClear.onclick = () => {
this.value = null;
formField.replaceChild(
this.formFieldControl(ejf, position, formField), formField.children[1]);
if (ejf.options.onValueChange) ejf.options.onValueChange();
};
btnClear.innerHTML = EasyJsonForm.iconDelete;
let spnFile = ejf.element('span', 'FieldFileValue');
spnFile.appendChild(iptFile);
spnFile.appendChild(lnkFile);
spnFile.appendChild(btnClear);
return spnFile;
}
}
helpText() {
let restrictions = [];
if (this.mandatory) restrictions.push(EasyJsonForm.dictionary['common.helptext.mandatory']);
if (this.properties.maxsize > 0)
restrictions.push(EasyJsonForm.dictionary['item.file.helptext.maxsize'].replace('{{size}}', this.properties.maxsize));
if (this.properties.filetypes && this.properties.filetypes.length > 0)
restrictions.push(EasyJsonForm.dictionary['item.file.helptext.filetypes'].replace('{{file-types}}',
this.properties.filetypes
.map((x) => EasyJsonForm.supportedFileTypes[x].extensions[0])
.join(EasyJsonForm.dictionary['common.helptext.separator'])
)
);
else
restrictions.push(EasyJsonForm.dictionary['item.file.helptext.filetypes'].replace('{{file-types}}', EasyJsonForm.dictionary['item.file.helptext.filetypes.all']));
return (restrictions.length == 0) ?
'' :
EasyJsonForm.dictionary['common.helptext'].replace('{{help-text}}',
restrictions.join(EasyJsonForm.dictionary['common.helptext.separator']));
}
valueExport(ejf, mode = 'raw') {
switch (mode)
{
case 'html':
let result = `<tr><td>${this.label}</td>`;
if (this.value === null)
result += `<td></td></tr>`;
else if (!ejf.options.fileHandler)
result += `<td>${this.value}</td></tr>`;
else
result += `<td><a href="${ejf.options.fileHandler.url(this.value)}" target="_blank">
${ejf.options.fileHandler.displayName(this.value)}
</a></td></tr>`;
return result;
default:
return super.valueExport(ejf, mode);
}
}
validate() {
if (this.mandatory && this.value == null)
return ['validation.error.mandatory'];
else
return [];
}
}
class EasyJsonFormFieldMultipleChoice extends EasyJsonFormField {
constructor(json = null) {
super(json);
if (this.properties === null) this.properties =
{
items:[1, 2, 3], // array containing values
};
if (this.value === null) this.value = Array(this.properties.items.length).fill('0');
this.type = 'multiplechoice';
}
builderEditor(ejf, updateCallback) {
let editor = super.builderEditor(ejf, updateCallback);
// Items field
let lblItems = document.createElement('label');
lblItems.htmlFor = EasyJsonForm.newElementId();
lblItems.innerHTML = `${EasyJsonForm.dictionary['item.properties.items']}
<br/><small>${EasyJsonForm.dictionary['item.properties.items.help']}</small>`;
let txaItems = document.createElement('textarea');
txaItems.id = EasyJsonForm.getElementId();
txaItems.value = this.properties.items.join('\n');
txaItems.onchange = () => {this.properties.items = txaItems.value.split('\n'); this.value = Array(this.properties.items.length).fill('0'); updateCallback();};
editor.appendChild(lblItems);
editor.appendChild(txaItems);
return editor;
}
formFieldCreate(ejf, position, withValidation = false) {
let validationError = (withValidation && this.validate().length > 0);
let lblFormField = ejf.element('label', 'FieldMultiplechoiceLabel', validationError ? 'ValidationErrorLabel' : null);
lblFormField.innerHTML = `${this.label}${this.helpText()}`;
let formGroup = ejf.element('span', 'FieldMultiplechoiceGroup');
this.properties.items.forEach((element, index) => {
let iptHidden = ejf.element('input');
iptHidden.type = 'hidden';
iptHidden.value = '0';
iptHidden.name = `${ejf.id}[${position}][${index}]`;
let iptCheck = ejf.element('input', 'FieldMultiplechoiceItemInput', validationError ? 'ValidationErrorInput' : null);
iptCheck.type = 'checkbox';
iptCheck.disabled = ejf.options.disabled || false;
iptCheck.id = `${ejf.id}[${position}][${index}]`;
iptCheck.name = `${ejf.id}[${position}][${index}]`;
iptCheck.value = '1';
iptCheck.checked = parseInt(this.value[index]);
iptCheck.onchange = () => {this.value[index] = iptCheck.checked ? "1" : "0"; if (ejf.options.onValueChange) ejf.options.onValueChange();};
let lblCheck = ejf.element('label', 'FieldMultiplechoiceItemLabel');
lblCheck.htmlFor = `${ejf.id}[${position}][${index}]`;
lblCheck.textContent = element;
let item = ejf.element('span', 'FieldMultiplechoiceItem');
item.appendChild(iptHidden);
item.appendChild(iptCheck);
item.appendChild(lblCheck);
if (validationError) item.appendChild(this.validationErrorMessage(ejf));
formGroup.appendChild(item);
});
let formField = ejf.element('div', 'FieldMultiplechoice');
formField.appendChild(lblFormField);
formField.appendChild(formGroup);
return formField;
}
valueExport(ejf, mode = 'raw') {
switch (mode)
{
case 'html':
let result = `<tr><td>${this.label}</td><td><ul>`;
this.properties.items.forEach((element, index) => {
result += `<li>${element}: `;
result += parseInt(this.value[index]) ? EasyJsonForm.dictionary['common.value.yes'] : EasyJsonForm.dictionary['common.value.no'];
result += `</li>`;
});
result += `</ul></td></tr>`;
return result;
case 'simple':
return this.value.map((x, i) => {
let itemKey = EasyJsonForm.dictionary['common.export.compound.field']
.replace('{{1st-level-label}}', this.label)
.replace('{{2nd-lebel-label}}', this.properties.items[i]);
let itemValue = parseInt(x) ?
EasyJsonForm.dictionary['common.value.yes']:
EasyJsonForm.dictionary['common.value.no'];
return {key: itemKey, value: itemValue};
});
default:
return super.valueExport(ejf, mode);
}
}
validate() {
if (this.mandatory) {
let valid = false;
for (const val of this.value) if (parseInt(val)) valid = true;
return valid ? [] : ['validation.error.please.select.one.option'];
}
else
return [];
}
}
class EasyJsonFormFieldNumber extends EasyJsonFormField {
constructor(json = null) {
super(json);
this.type = 'number';
}
formFieldCreate(ejf, position, withValidation = false) {
let validationError = (withValidation && this.validate().length > 0);
let lblFormField = ejf.element('label', 'FieldNumberLabel', validationError ? 'ValidationErrorLabel' : null);
lblFormField.htmlFor = `${ejf.id}[${position}]`;
lblFormField.innerHTML = `${this.label}${this.helpText()}`;
let iptFormField = ejf.element('input', 'FieldNumberInput', validationError ? 'ValidationErrorInput' : null);
iptFormField.disabled = ejf.options.disabled || false;
iptFormField.id = `${ejf.id}[${position}]`;
iptFormField.name = `${ejf.id}[${position}]`;
iptFormField.type = 'number';
iptFormField.value = this.value;
iptFormField.onchange = () => {this.value = iptFormField.value; if (ejf.options.onValueChange) ejf.options.onValueChange();};
let formField = ejf.element('div', 'FieldNumber');
formField.appendChild(lblFormField);
formField.appendChild(iptFormField);
if (validationError) formField.appendChild(this.validationErrorMessage(ejf));
return formField;
}
validate() {
return (this.mandatory && this.value === null) ? ['validation.error.mandatory'] : [];
}
}
class EasyJsonFormFieldSingleChoice extends EasyJsonFormField {
constructor(json = null) {
super(json);
if (this.properties === null) this.properties =
{
items:[1, 2, 3], // array containing values
};
this.type = 'singlechoice';
}
builderEditor(ejf, updateCallback) {
let editor = super.builderEditor(ejf, updateCallback);
// Items field
let lblItems = document.createElement('label');
lblItems.htmlFor = EasyJsonForm.newElementId();
lblItems.innerHTML = `${EasyJsonForm.dictionary['item.properties.items']}
<br/><small>${EasyJsonForm.dictionary['item.properties.items.help']}</small>`;
let txaItems = document.createElement('textarea');
txaItems.id = EasyJsonForm.getElementId();
txaItems.value = this.properties.items.join('\n');
txaItems.onchange = () => {this.properties.items = txaItems.value.split('\n'); updateCallback();};
editor.appendChild(lblItems);
editor.appendChild(txaItems);
return editor;
}
formFieldCreate(ejf, position, withValidation = false) {
let validationError = (withValidation && this.validate().length > 0);
let lblFormField = ejf.element('label', 'FieldSinglechoiceLabel', validationError ? 'ValidationErrorLabel' : null);
lblFormField.htmlFor = `${ejf.id}[${position}]`;
lblFormField.innerHTML = `${this.label}${this.helpText()}`;
let iptFormField = ejf.element('select', 'FieldSinglechoiceSelect', validationError ? 'ValidationErrorInput' : null);
iptFormField.disabled = ejf.options.disabled || false;
iptFormField.id = `${ejf.id}[${position}]`;
iptFormField.name = `${ejf.id}[${position}]`;
let nullOption = ejf.element('option');
nullOption.value = 'null';
nullOption.textContent = EasyJsonForm.dictionary['item.singlechoice.value.null'];
iptFormField.appendChild(nullOption);
this.properties.items.forEach((element, index) => {
let option = ejf.element('option');
option.value = index;
option.textContent = element;
iptFormField.appendChild(option);
});
iptFormField.value = this.value;
iptFormField.onchange = () => {this.value = (iptFormField.value == 'null') ? null : iptFormField.value; if (ejf.options.onValueChange) ejf.options.onValueChange();};
let formField = ejf.element('div', 'FieldSinglechoice');
formField.appendChild(lblFormField);
formField.appendChild(iptFormField);
if (validationError) formField.appendChild(this.validationErrorMessage(ejf));
return formField;
}
valueExport(ejf, mode = 'raw') {
switch (mode)
{
case 'html': return `<tr><td>${this.label}</td><td>${this.value === null ? '' : this.properties.items[this.value]}</td></tr>`;
case 'simple': return [{key: this.label, value: this.value === null ? '' : this.properties.items[this.value]}];
default: return super.valueExport(ejf, mode);
}
}
validate() {
return (this.mandatory && this.value === null) ? ['validation.error.mandatory'] : [];
}
}
class EasyJsonFormFieldText extends EasyJsonFormField {
constructor(json = null) {
super(json);
if (this.value === null) this.value = '';
if (this.properties === null) this.properties = {
lengthmeasurement: 'no',
lengthmax: 0,
lengthmin: 0,
multiline: false,
};
this.type = 'text';
}
builderEditor(ejf, updateCallback) {
let editor = super.builderEditor(ejf, updateCallback);
// Multiline field
let lblMultiline = document.createElement('label');
lblMultiline.htmlFor = EasyJsonForm.newElementId();
lblMultiline.textContent = EasyJsonForm.dictionary['item.text.properties.multiline'];
let iptMultiline = document.createElement('input');
iptMultiline.id = EasyJsonForm.getElementId();
iptMultiline.type = 'checkbox';
iptMultiline.checked = this.properties.multiline;
iptMultiline.onchange = () => {this.properties.multiline = iptMultiline.checked; updateCallback();};
editor.appendChild(lblMultiline);
editor.appendChild(iptMultiline);
// Length measure field
let lblLengthMeasure = document.createElement('label');
lblLengthMeasure.htmlFor = EasyJsonForm.newElementId();
lblLengthMeasure.textContent = EasyJsonForm.dictionary['item.text.properties.length.measure'];
let optLengthMeasureByCharacter = document.createElement('option');
optLengthMeasureByCharacter.value = 'bycharacter';
optLengthMeasureByCharacter.textContent = EasyJsonForm.dictionary['item.text.properties.length.measure.bycharacter'];
let optLengthMeasureByWord = document.createElement('option');
optLengthMeasureByWord.value = 'byword';
optLengthMeasureByWord.textContent = EasyJsonForm.dictionary['item.text.properties.length.measure.byword'];
let optLengthMeasureNo = document.createElement('option');
optLengthMeasureNo.value = 'no';
optLengthMeasureNo.textContent = EasyJsonForm.dictionary['item.text.properties.length.measure.no'];
let selLengthMeasure = document.createElement('select');
selLengthMeasure.id = EasyJsonForm.getElementId();
selLengthMeasure.appendChild(optLengthMeasureByCharacter);
selLengthMeasure.appendChild(optLengthMeasureByWord);
selLengthMeasure.appendChild(optLengthMeasureNo);
selLengthMeasure.value = this.properties.lengthmeasurement;
selLengthMeasure.onchange = () => {this.properties.lengthmeasurement = selLengthMeasure.value; updateCallback();};
editor.appendChild(lblLengthMeasure);
editor.appendChild(selLengthMeasure);
// Length min field
let lblLengthMin = document.createElement('label');
lblLengthMin.htmlFor = EasyJsonForm.newElementId();
lblLengthMin.textContent = EasyJsonForm.dictionary['item.text.properties.length.min'];
let iptLengthMin = document.createElement('input');
iptLengthMin.type = 'number';
iptLengthMin.min = 0;
iptLengthMin.step = 1;
iptLengthMin.id = EasyJsonForm.getElementId();
iptLengthMin.value = this.properties.lengthmin;
iptLengthMin.onchange = () => {this.properties.lengthmin = iptLengthMin.value; updateCallback();};
editor.appendChild(lblLengthMin);
editor.appendChild(iptLengthMin);
// Length max field
let lblLengthMax = document.createElement('label');
lblLengthMax.htmlFor = EasyJsonForm.newElementId();
lblLengthMax.textContent = EasyJsonForm.dictionary['item.text.properties.length.max'];
let iptLengthMax = document.createElement('input');
iptLengthMax.type = 'number';
iptLengthMax.min = 0;
iptLengthMax.step = 1;
iptLengthMax.id = EasyJsonForm.getElementId();
iptLengthMax.value = this.properties.lengthmax;
iptLengthMax.onchange = () => {this.properties.lengthmax = iptLengthMax.value; updateCallback();};
editor.appendChild(lblLengthMax);
editor.appendChild(iptLengthMax);
return editor;
}
formFieldCreate(ejf, position, withValidation = false) {
let validationError = (withValidation && this.validate().length > 0);
let lblFormField = ejf.element('label', 'FieldTextLabel', validationError ? 'ValidationErrorLabel' : null);
lblFormField.htmlFor = `${ejf.id}[${position}]`;
lblFormField.innerHTML = `${this.label}${this.helpText()}`;
let spnCounter = ejf.element('span', 'FieldTextInfo');
let iptFormField = this.properties.multiline ?
ejf.element('textarea', 'fieldTextInput', validationError ? 'ValidationErrorInput' : null):
ejf.element('input', 'fieldTextInput', validationError ? 'ValidationErrorInput' : null);
iptFormField.disabled = ejf.options.disabled || false;
iptFormField.id = `${ejf.id}[${position}]`;
iptFormField.name = `${ejf.id}[${position}]`;
iptFormField.value = this.value;
iptFormField.onkeyup = () => {
this.value = iptFormField.value;
switch (this.properties.lengthmeasurement) {
case 'bycharacter':
let characters = iptFormField.value;
spnCounter.textContent = EasyJsonForm.dictionary['item.text.character.count'].replace('{{chars}}', characters.length);
if (characters.length < this.properties.lengthmin || characters.length > this.properties.lengthmax)
spnCounter.setAttribute('role', 'alert');
else
spnCounter.removeAttribute('role');
break;
case 'byword':
let words = iptFormField.value.match(/\S+/g) || [];
spnCounter.textContent = EasyJsonForm.dictionary['item.text.word.count'].replace('{{words}}', words.length);
if (words.length < this.properties.lengthmin || words.length > this.properties.lengthmax)
spnCounter.setAttribute('role', 'alert');
else
spnCounter.removeAttribute('role');
break;
default:
break;
}
if (ejf.options.onValueChange) ejf.options.onValueChange();
};
iptFormField.onkeyup();
let formField = ejf.element('div', 'FieldText');
formField.appendChild(lblFormField);
formField.appendChild(spnCounter);
formField.appendChild(iptFormField);
if (validationError) formField.appendChild(this.validationErrorMessage(ejf));
return formField;
}
helpText() {
let restrictions = [];
if (this.mandatory) restrictions.push(EasyJsonForm.dictionary['common.helptext.mandatory']);
if (this.properties.lengthmeasurement == 'byword') {
if(this.properties.lengthmin > 0)
restrictions.push(EasyJsonForm.dictionary['common.helptext.min.length.by.word'].replace('{{min}}', this.properties.lengthmin));
if(this.properties.lengthmax > 0)
restrictions.push(EasyJsonForm.dictionary['common.helptext.max.length.by.word'].replace('{{max}}', this.properties.lengthmax));
}
else if (this.properties.lengthmeasurement == 'bycharacter') {
if(this.properties.lengthmin > 0)
restrictions.push(EasyJsonForm.dictionary['common.helptext.min.length.by.character'].replace('{{min}}', this.properties.lengthmin));
if(this.properties.lengthmax > 0)
restrictions.push(EasyJsonForm.dictionary['common.helptext.max.length.by.character'].replace('{{max}}', this.properties.lengthmax));
}
return (restrictions.length == 0) ?
'' :
EasyJsonForm.dictionary['common.helptext'].replace('{{help-text}}',
restrictions.join(EasyJsonForm.dictionary['common.helptext.separator']));
}
valueExport(ejf, mode = 'raw') {
switch (mode)
{
case 'html': return `<tr><td>${this.label}</td><td style="white-space: pre-wrap; overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; hyphens: auto;">${this.value === null ? '' : this.value}</td></tr>`;
default: return super.valueExport(ejf, mode);
}
}
validate() {
let result = [];
if (this.mandatory && this.value == '')
result.push(['validation.error.mandatory']);
if (this.properties.lengthmeasurement == 'bycharacter') {
let numberOfCharacters = this.value.length;
if (numberOfCharacters < this.properties.lengthmin)
result.push(['validation.error.less.than.minimum.chars.accepted']);
else if (numberOfCharacters > this.properties.lengthmax)
result.push(['validation.error.more.than.maximum.chars.accepted']);
}
else if (this.properties.lengthmeasurement == 'byword') {
let words = this.value.match(/\S+/g) || [];
if (words.length < this.properties.lengthmin)
result.push(['validation.error.less.than.minimum.words.accepted']);
else if (words.length > this.properties.lengthmax)
result.push(['validation.error.more.than.maximum.words.accepted']);
}
return result;
}
}
class EasyJsonFormFieldTextgroup extends EasyJsonFormField {
constructor(json = null) {
super(json);
if (this.properties === null) this.properties =
{
items:[1, 2, 3], // array containing values
};
if (this.value === null) this.value = Array(this.properties.items.length).fill('');
this.type = 'textgroup';
}
builderEditor(ejf, updateCallback) {
let editor = super.builderEditor(ejf, updateCallback);
// Items field
let lblItems = document.createElement('label');
lblItems.htmlFor = EasyJsonForm.newElementId();;
lblItems.innerHTML = `${EasyJsonForm.dictionary['item.properties.items']}
<br/><small>${EasyJsonForm.dictionary['item.properties.items.help']}</small>`;
let txaItems = document.createElement('textarea');
txaItems.id = EasyJsonForm.getElementId();
txaItems.value = this.properties.items.join('\n');
txaItems.onchange = () => {this.properties.items = txaItems.value.split('\n'); this.value = Array(this.properties.items.length).fill(''); updateCallback();};
editor.appendChild(lblItems);
editor.appendChild(txaItems);
return editor;
}
formFieldCreate(ejf, position, withValidation = false) {
let validationError = (withValidation && this.validate().length > 0);
let lblFormField = ejf.element('label', 'FieldTextgroupLabel', validationError ? 'ValidationErrorLabel' : null);
lblFormField.innerHTML = `${this.label}${this.helpText()}`;
let formGroup = ejf.element('span', 'FieldTextgroupGroup');
this.properties.items.forEach((element, index) => {
let lblCheck = ejf.element('label', 'FieldTextgroupItemLabel');
lblCheck.htmlFor = `${ejf.id}[${position}][${index}]`;
lblCheck.textContent = element;
let iptCheck = ejf.element('input', 'FieldTextgroupItemInput', validationError ? 'ValidationErrorInput' : null);
iptCheck.type = 'text';
iptCheck.disabled = ejf.options.disabled || false;
iptCheck.id = `${ejf.id}[${position}][${index}]`;
iptCheck.name = `${ejf.id}[${position}][${index}]`;
iptCheck.value = this.value[index];
iptCheck.onchange = () => {this.value[index] = iptCheck.value; if (ejf.options.onValueChange) ejf.options.onValueChange(); };
let item = ejf.element('span', 'FieldTextgroupItem');
item.appendChild(lblCheck);
item.appendChild(iptCheck);
if (validationError) item.appendChild(this.validationErrorMessage(ejf));
formGroup.appendChild(item);
});
let formField = ejf.element('div', 'FieldTextgroup');
formField.appendChild(lblFormField);
formField.appendChild(formGroup);
return formField;
}
valueExport(ejf, mode = 'raw') {
switch (mode)
{
case 'html':
let result = `<tr><td>${this.label}</td><td><ul>`;
this.properties.items.forEach((element, index) => {
result += `<li>${element}: ${this.value[index]}</li>`;
});
result += `</ul></td></tr>`;
return result;
case 'simple':
return this.value.map((x, i) => {
let itemKey = EasyJsonForm.dictionary['common.export.compound.field']
.replace('{{1st-level-label}}', this.label)
.replace('{{2nd-lebel-label}}', this.properties.items[i]);
return {key: itemKey, value: x};
});
default:
return super.valueExport(ejf, mode);
}
}
validate() {
if (this.mandatory) {
let valid = true;
for (const val of this.value) if (val == '') valid = false;
return valid ? [] : ['validation.error.please.fill.all.fields'];
}
else
return [];
}
}
class EasyJsonForm {
/**
* Class constructor.
*
* @param {string} id Id HTML attribute of the form
* @param {Array|String} structure Structure of the form. Can be passed as an array or its JSON string representation.
* @param {Object} options Options for EasyJsonForm.
* @param {Object} style Deprecated. Sets the CSS and classes for the HTML elements.
*/
constructor(id, structure = null, options = null, style = null) {
if (id) this.id = id;
else throw new Error('Id is mandatory');
this.structureImport(structure || []);
this.options = options || {};
this.disabled = options.disabled || false; // TODO: Forms, not only the builder, should also be disabled
this.style = options.style || style || {};
this.onStructureChange = options.onStructureChange || (()=>{});
this.onValueChange = options.onValueChange || (()=>{});
}
/**
* Returns the the EasyJsonForm Builder HTML element.
*/
builderGet() {
if (!this.builder) {
// Creating builder element
this.builder = this.element('div', 'Builder');
// Creating toolbar
this.builderToolbar = this.element('div', 'BuilderToolbar');
// Inserting add buttons to the toolbar
for (const [type, classs] of Object.entries(EasyJsonForm.registeredClasses)) {
let button = this.element('button', 'BuilderToolbarButton');
button.disabled = this.disabled;
button.type = 'button';
button.innerHTML = EasyJsonForm.iconAdd + EasyJsonForm.dictionary[`item.${type}`];
button.onclick = () => {
let fieldName = EasyJsonForm.dictionary[`common.label.new`]
.replace('{{field-type}}', EasyJsonForm.dictionary[`item.${type}`]);
this.structure.push(new classs({label: this.labelFind(fieldName)}));
this.builderUpdate();
this.onStructureChange();
};
this.builderToolbar.appendChild(button);
}
// Creating table
let builderTable = this.element('table', 'BuilderTable');
builderTable.appendChild(document.createElement('tbody'));
this.builder.appendChild(builderTable);
this.builderUpdate();
}
return this.builder;
}
builderMoveItem(position, offset) {
if (position+offset >= this.structure.length || position+offset < 0) return;
let currentItem = this.structure[position];
let movedItem = this.structure[position+offset];
this.structure[position+offset] = currentItem;
this.structure[position] = movedItem;
this.builderUpdate();
this.onStructureChange();
}
builderUpdate() {
let tbody = this.builder.children[0].children[0];
while (tbody.rows.length > 0) tbody.deleteRow(-1);
this.structure.forEach((element, i) => {
let tr = tbody.insertRow(-1);
let mainTd = tr.insertCell(-1);
mainTd.appendChild(element.formFieldCreate(this, i));
mainTd.style.width = '90%';
let toolbarTd = tr.insertCell(-1);
let toolbar = this.element('div', 'BuilderFieldTooldbar');
toolbarTd.appendChild(toolbar);
let btnEdit = this.element('button', 'BuilderFieldTooldbarButton');
btnEdit.disabled = this.disabled;
btnEdit.type = 'button';
btnEdit.innerHTML = EasyJsonForm.iconEdit;
toolbar.appendChild(btnEdit);
let btnEditFinish = this.element('button', 'BuilderFieldTooldbarButton');
btnEditFinish.disabled = this.disabled;
btnEditFinish.type = 'button';
btnEditFinish.style.display = 'none';
btnEditFinish.innerHTML = EasyJsonForm.iconOK;
toolbar.appendChild(btnEditFinish);
let btnMoveUp = this.element('button', 'BuilderFieldTooldbarButton');
btnMoveUp.disabled = this.disabled;
btnMoveUp.type = 'button';
btnMoveUp.innerHTML = EasyJsonForm.iconUp;
toolbar.appendChild(btnMoveUp);
let btnMoveDown = this.element('button', 'BuilderFieldTooldbarButton');
btnMoveDown.disabled = this.disabled;
btnMoveDown.type = 'button';
btnMoveDown.innerHTML = EasyJsonForm.iconDown;
toolbar.appendChild(btnMoveDown);
let btnDelete = this.element('button', 'BuilderFieldTooldbarDeleteButton');
btnDelete.disabled = this.disabled;
btnDelete.type = 'button';
btnDelete.innerHTML = EasyJsonForm.iconDelete;
toolbar.appendChild(btnDelete);
btnEdit.onclick = () => {
let editor = this.structure[i].builderEditor(this, () => {
mainTd.replaceChild(this.structure[i].formFieldCreate(this, i), mainTd.children[0]);
this.onStructureChange();
});
mainTd.appendChild(editor);
btnEdit.style.display = 'none';
btnEditFinish.style.display = 'inline-block';
};
btnEditFinish.onclick = () => {
mainTd.removeChild(mainTd.lastChild);
btnEdit.style.display = 'inline-block';
btnEditFinish.style.display = 'none';
};
btnMoveUp.onclick = () => this.builderMoveItem(i, -1);
btnMoveDown.onclick = () => this.builderMoveItem(i, +1);
btnDelete.onclick = () => {
if(confirm(EasyJsonForm.dictionary['builder.message.delete'].replace('{{position}}', i+1)))
{
this.structure.splice(i, 1);
this.builderUpdate();
this.onStructureChange();
}
};
});
let lastRow = tbody.insertRow(-1).insertCell(-1);
lastRow.colSpan = 2;
lastRow.appendChild(this.builderToolbar);
}
formGet() {
if (!this.form) {
// Resolving formContainer (default and acceped values, case sensitivity)
if (!this.options.formContainer) this.options.formContainer = 'form';
else this.options.formContainer = this.options.formContainer.toLowerCase().trim();
if (!['div','form'].includes(this.options.formContainer))
this.options.formContainer = 'form';
// Creating container
this.form = this.element(this.options.formContainer, 'Form');
this.form.id = this.id;
if (this.options.formContainer == 'form') {
if (this.options.formAction) this.form.action = this.options.formAction;
if (this.options.formMethod) this.form.method = this.options.formMethod;
}
this.formUpdate();
}
return this.form;
}
formIsValid() {
let valid = true;
this.structure.forEach((element) => {valid &&= (element.validate().length == 0) });
return valid;
}
formUpdate(withValidation = false) {
while (this.form.firstChild) this.form.removeChild(this.form.firstChild);
this.structure.forEach((element, index) => {
this.form.appendChild(element.formFieldCreate(this, index, withValidation));
});
}
labelFind(label) {
let i = 1;
let found = false;
while (!found) {
let labelCandidate = label.replace('{{field-number}}', i);
found = true;
for (const formField of this.structure) {
if (formField.label == labelCandidate) {
i++; found = false;
}
}
}
return label.replace('{{field-number}}', i);
}
labelCheckErrors(labelCandidate) {
// Labels cannot be numbers
const reg = new RegExp('^[0-9]+$');
if (reg.test(labelCandidate))
return EasyJsonForm.dictionary['builder.message.label.name.cannot.be.numeric'];
// Labels cannot repeat themselves
for (const formField of this.structure) {
if (formField.label == labelCandidate) {
return EasyJsonForm.dictionary['builder.message.label.name.already.in.use'];
}
return false;
}
}
structureExport() {
return(JSON.parse(JSON.stringify(this.structure)));
}
structureImport(structure) {
this.structure = [];
structure.forEach(element => {
let classs = EasyJsonForm.registeredClasses[element.type];
if (classs) this.structure.push(new classs(element));
});
if (this.builder) this.builderUpdate();
if (this.form) this.formUpdate();
this.onStructureChange();
}
valueExport(mode = 'raw') {
switch (mode)
{
case 'html':
let table = this.element('table', 'ValueExportTable');
let innerContent = '';
this.structure.forEach(element => {innerContent += element.valueExport(this, 'html');});
table.innerHTML = innerContent;
return table.outerHTML;
case 'raw':
let rawResult = [];
this.structure.forEach(element => rawResult.push(element.valueExport(this, 'raw')));
return rawResult;
case 'simple':
let simpleResult = {};
this.structure.forEach(element => {
let tableEntries = element.valueExport(this, 'simple');
for (const tableEntry of tableEntries) simpleResult[tableEntry.key] = tableEntry.value;
});
return simpleResult;
}
}
valueImport(rawValues) {
this.structure.forEach((element, index) => {
element.value = rawValues[index];
});
this.onValueChange();
}
// Internal methods and properties. Don't need to be called externally.
static newElementId = () => `ejf-${++EasyJsonForm.elementId}`;
static getElementId = () => `ejf-${EasyJsonForm.elementId}`;
static elementId = 0;
element(htmlTagName, styleName = null, validationStyleName = null) {
let element = document.createElement(htmlTagName);
if (styleName && this.style[styleName]) {
if (this.style[styleName].classList)
this.style[styleName].classList.forEach(x =>element.classList.add(x));
if (this.style[styleName].style)
for (const [key, value] of Object.entries(this.style[styleName].style))
element.style[`${key}`] = value;
}
if (styleName) element.classList.add(`ejf${styleName}`);
if (validationStyleName && this.style[validationStyleName]) {
if (this.style[validationStyleName].classList)
this.style[validationStyleName].classList.forEach(x =>element.classList.add(x));
if (this.style[validationStyleName].style)
for (const [key, value] of Object.entries(this.style[validationStyleName].style))
element.style[`${key}`] = value;
}
if (validationStyleName) element.classList.add(`ejf${validationStyleName}`);
return element;
}
// Resources. Can be modified for extra customization of the library.
static registeredClasses = {
'text': EasyJsonFormFieldText,
'textgroup': EasyJsonFormFieldTextgroup,
'number': EasyJsonFormFieldNumber,
'singlechoice': EasyJsonFormFieldSingleChoice,
'multiplechoice': EasyJsonFormFieldMultipleChoice,
'file': EasyJsonFormFieldFile,
};
static supportedFileTypes = {
'application/pdf' : {extensions:['pdf']},
'image/gif' : {extensions:['gif']},
'image/png' : {extensions:['png']},
'image/jpeg': {extensions:['jpeg','jpg','jpe']},
'image/bmp': {extensions:['bmp']},
'application/msword': {extensions:['doc']},