// === continue code from InputRendererUtil ===
// ClientSide validation
// com.ibm.xsp.renderkit.html_basic.InputRendererUtil.generateClientSideValidation(FacesContext,
// UIInput, ResponseWriter)
private void generateClientSideValidation(
FacesContext context, UIInput uiInput, ResponseWriter writer) throws IOException {
// Check if the input field is required
boolean required = uiInput.isRequired();
Converter c = InputRendererUtil.findConverter(context, uiInput);
Validator[] v = uiInput.getValidators();
// Check if it might make sense to generate a function
boolean validate = required;
if (!validate) {
validate = c instanceof ClientSideConverter;
}
if (!validate) {
for (int i = 0; i < v.length; i++) {
validate = v[i] instanceof ClientSideValidator;
if (validate) {
break;
}
}
}
if (validate) {
// This flag is maintained if we actually need to generate the function
// Some converter/validator may not actually generate any client code, depending on their
// parameters
validate = false;
StringBuilder b = new StringBuilder(128);
b.append("XSP.attachValidator("); // $NON-NLS-1$
JavaScriptUtil.addString(b, uiInput.getClientId(context));
// Add the required flag
if (required) {
b.append(",new XSP.RequiredValidator("); // $NON-NLS-1$
JavaScriptUtil.addMessage(b, InputRendererUtil.getRequiredMessage(context, uiInput));
b.append(")");
validate = true;
} else {
b.append(",null"); // $NON-NLS-1$
}
// Add the converter
if (c instanceof ClientSideConverter) {
ClientSideConverter clientSideConverter = (ClientSideConverter) c;
// TODO this is handling of converterRenderer
// differs from the original implementation in InputRendererUtil.
String s;
Renderer renderer =
FacesUtil.getRenderer(context, uiInput.getFamily(), uiInput.getRendererType());
ClientSideConverter converterRenderer =
(ClientSideConverter) FacesUtil.getRendererAs(renderer, ClientSideConverter.class);
if (null != converterRenderer) {
// if the control renderer implements ClientSideConverter
// delegate to the renderer instead of to the converter.
s = converterRenderer.generateClientSideConverter(context, uiInput);
} else {
s = clientSideConverter.generateClientSideConverter(context, uiInput);
}
if (StringUtil.isNotEmpty(s)) {
b.append(",");
b.append(s); // not JSUtil because contains client script.
validate = true;
} else {
b.append(",null"); // $NON-NLS-1$
}
} else {
b.append(",null"); // $NON-NLS-1$
}
// And add the validator
for (int i = 0; i < v.length; i++) {
if (v[i] instanceof ClientSideValidator) {
String s = ((ClientSideValidator) v[i]).generateClientSideValidation(context, uiInput);
if (StringUtil.isNotEmpty(s)) {
b.append(",");
b.append(s); // not JSUtil because contains client script.
validate = true;
}
}
}
// Finally, check for multiple values
String multiSep = null;
if (uiInput instanceof UIInputEx) {
multiSep = ((UIInputEx) uiInput).getMultipleSeparator();
}
if (c instanceof ListConverter) {
multiSep = ((ListConverter) c).getDelimiter();
if (StringUtil.isEmpty(multiSep)) {
multiSep = ","; // $NON-NLS-1$
}
}
if (StringUtil.isNotEmpty(multiSep)) {
b.append(",");
JSUtil.addString(b, multiSep);
}
b.append(");");
// get the scriptcollector component (needed to add script blocks the the rendered output).
if (validate) {
JavaScriptUtil.addScriptOnLoad(b.toString());
}
}
}
