private static String getChainedHandler(
FacesContext context,
UIComponent component,
List<ClientBehavior> behaviors,
Collection<ClientBehaviorContext.Parameter> params,
String behaviorEventName,
String userHandler) {
StringBuilder builder = new StringBuilder(100);
builder.append("jsf.util.chain(this,event,");
appendScriptToChain(builder, userHandler);
boolean submitting =
appendBehaviorsToChain(builder, context, component, behaviors, behaviorEventName, params);
boolean hasParams = ((null != params) && !params.isEmpty());
if (!submitting && hasParams) {
String submitHandler = getSubmitHandler(context, component, params, false);
appendScriptToChain(builder, submitHandler);
submitting = true;
}
builder.append(")");
if (submitting && ("action".equals(behaviorEventName) || "click".equals(behaviorEventName))) {
builder.append(";return false");
}
return builder.toString();
}
private static void appendScriptToChain(StringBuilder builder, String script) {
if ((script == null) || (script.length() == 0)) {
return;
}
if (builder.charAt(builder.length() - 1) != ',') builder.append(',');
appendQuotedValue(builder, script);
}
private static String getSubmitHandler(
FacesContext context,
UIComponent component,
Collection<ClientBehaviorContext.Parameter> params,
boolean preventDefault) {
StringBuilder builder = new StringBuilder(256);
String formClientId = getFormClientId(component, context);
String componentClientId = component.getClientId(context);
builder.append("qab.sf(document.getElementById('");
builder.append(formClientId);
builder.append("'),{");
appendProperty(builder, componentClientId, componentClientId);
if ((null != params) && (!params.isEmpty())) {
for (ClientBehaviorContext.Parameter param : params) {
appendProperty(builder, param.getName(), param.getValue());
}
}
builder.append("})");
if (preventDefault) {
builder.append(";return false");
}
return builder.toString();
}
private static void appendQuotedValue(StringBuilder builder, String script) {
builder.append("'");
int length = script.length();
for (int i = 0; i < length; i++) {
char c = script.charAt(i);
if (c == '\'' || c == '\\') {
builder.append('\\');
}
builder.append(c);
}
builder.append("'");
}
public static String findClientIds(String ids, UIComponent component, FacesContext context)
throws IOException {
if (ids == null) return null;
StringBuilder clientIds = new StringBuilder();
String[] idlist = ids.split("[\\s]");
for (String id : idlist) {
if (!id.startsWith("@")) {
UIComponent found = component.findComponent(id);
if (found != null) {
if (clientIds.length() > 0) clientIds.append(" ");
clientIds.append(found.getClientId(context));
} else {
throw new IOException("Cannot find id " + id + " within components NamingContainer");
}
}
}
return clientIds.toString();
}
public static void appendProperty(
StringBuilder builder, String name, Object value, boolean quoteValue) {
if ((null == name) || (name.length() == 0)) throw new IllegalArgumentException();
char lastChar = builder.charAt(builder.length() - 1);
if ((lastChar != ',') && (lastChar != '{')) builder.append(',');
appendQuotedValue(builder, name);
builder.append(":");
if (value == null) {
builder.append("''");
} else if (quoteValue) {
appendQuotedValue(builder, value.toString());
} else {
builder.append(value.toString());
}
}
