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@Narven
Created October 10, 2017 14:13
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Bulma.io form renderer for aurelia and aurelia form.
/**
* Bulma.io form renderer for aurelia and aurelia form.
*
* Converted from "Bootstrap form renderer for aurelia and aurelia form."
*
* @export
* @class BulmaFormRenderer
*/
export class BulmaFormRenderer {
render(instruction) {
for (let { result, elements } of instruction.unrender) {
for (let element of elements) {
this.remove(element, result);
}
}
for (let { result, elements } of instruction.render) {
for (let element of elements) {
this.add(element, result);
}
}
}
/**
* Add to error list
*
* @param {any} element
* @param {any} error
* @returns
* @memberof BulmaFormRenderer
*/
add(element, error) {
if(!error.valid) {
const formGroup = element.closest('.field');
if (!formGroup || formGroup.classList.contains('help')) {
return;
}
// add the has-error class to the enclosing form-group div
formGroup.classList.add('has-error');
element.classList.add('is-danger');
// add help-block
const message = document.createElement('p');
message.className = 'help is-danger';
message.textContent = error.message;
message.id = `validation-message-${error.id}`;
formGroup.appendChild(message);
}
}
/**
* Removes from error list
*
* @param {any} element
* @param {any} error
* @returns
* @memberof BulmaFormRenderer
*/
remove(element, error) {
if (error) {
const formGroup = element.closest('.field');
if (!formGroup) {
return;
}
element.classList.remove('is-danger');
// remove help-block
const message = formGroup.querySelector(`#validation-message-${error.id}`);
if (message) {
formGroup.removeChild(message);
// remove the has-error class from the enclosing gield div
if (formGroup.querySelectorAll('.help.validation-message').length === 0) {
formGroup.classList.remove('is-danger');
}
}
}
}
}
@Narven
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Narven commented Oct 10, 2017

The extension is Typescript (.ts) but can be just renamed to .js. Still works the same.

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