ohif-viewer/Packages/lesiontracker/client/utils/form.js
2016-08-05 10:09:12 +02:00

106 lines
3.3 KiB
JavaScript

class Form {
// Identify the element's type and get its value
static getElementValue($element) {
var type = $element.attr('type');
var value;
switch (type) {
case 'checkbox':
value = $element.is(':checked');
break;
default:
value = $element.val();
}
return value;
};
// Identify the element's type and get its value
static setElementValue($element, value) {
if (!$element.length) {
return;
}
var type = $element.attr('type');
switch (type) {
case 'checkbox':
$element.prop('checked', !!value);
break;
default:
$element.val(value);
}
$element.trigger('change');
};
// Transforms a shallow object with keys separated by "." into a nested object
static getNestedObject(shallowObject) {
var nestedObject = {};
for (var key in shallowObject) {
var value = shallowObject[key];
var propertyArray = key.split('.');
var currentObject = nestedObject;
while (propertyArray.length) {
var currentProperty = propertyArray.shift();
if (!propertyArray.length) {
currentObject[currentProperty] = value;
} else {
if (!currentObject[currentProperty]) {
currentObject[currentProperty] = {};
}
currentObject = currentObject[currentProperty];
}
}
}
return nestedObject;
};
// Transforms a nested object into a shallowObject merging its keys with "." character
static getShallowObject(nestedObject) {
var shallowObject = {};
var putValues = function(baseKey, nestedObject, resultObject) {
for (var key in nestedObject) {
var currentKey = baseKey ? baseKey + '.' + key : key;
var currentValue = nestedObject[key];
if (typeof currentValue === 'object') {
if (currentValue instanceof Array) {
currentKey += '[]';
}
putValues(currentKey, currentValue, resultObject);
} else {
resultObject[currentKey] = currentValue;
}
}
};
putValues('', nestedObject, shallowObject);
return shallowObject;
}
// Gets the nested data for the given form
static getFormData($form) {
var data = {};
$form.find(':input[name]').each((index, element) => {
var $element = $(element);
var value = this.getElementValue($element);
var name = $element.attr('name');
data[name] = value;
});
return this.getNestedObject(data);
}
// Sets the nested data in the given form
static setFormData($form, data) {
var shallowData = this.getShallowObject(data);
for (var key in shallowData) {
var value = shallowData[key];
var $element = $form.find(':input[name="' + key + '"]');
this.setElementValue($element, value);
}
}
}
FormUtils = Form;