/** @return A synthetic close tag for this tag */
public final CharSequence syntheticCloseTagString() {
AppendingStringBuffer buf = new AppendingStringBuffer();
buf.append("</");
if (getNamespace() != null) {
buf.append(getNamespace()).append(':');
}
buf.append(getName()).append('>');
return buf;
}
@Override
public void onComponentTagBody(final MarkupStream markupStream, final ComponentTag openTag) {
// render the hidden field
AppendingStringBuffer buffer =
new AppendingStringBuffer("<div style=\"display:none\"><input type=\"hidden\" name=\"");
buffer
.append(getActionTokenHiddenFieldId())
.append("\" id=\"")
.append(getActionTokenHiddenFieldId())
.append("\" value=\"")
.append(actionToken)
.append("\" /></div>");
getResponse().write(buffer);
super.onComponentTagBody(markupStream, openTag);
}
/*
* (non-Javadoc)
*
* @see org.apache.wicket.behavior.Behavior#onComponentTag(org.apache.wicket.Component,
* org.apache.wicket.markup.ComponentTag)
*/
@Override
public void onComponentTag(Component component, ComponentTag tag) {
super.onComponentTag(component, tag);
if (!Form.class.isAssignableFrom(component.getClass())) {
throw new WicketRuntimeException("This behavior is only applicable on a Form component");
}
Form<?> form = (Form<?>) component;
// Retrieve and set form name
String formName = verifyFormName(form, tag);
tag.put("onsubmit", "return yav.performCheck('" + formName + "', rules);");
// Open the Yav script (inlined JavaScript)
AppendingStringBuffer buffer = new AppendingStringBuffer("<script>\n");
buffer.append("var rules=new Array();\n");
// Visit all form components and check for validators (and write the
// appropriate Yav rules in the current inlined JavaScript)
form.visitFormComponents(new YavFormComponentVisitor(buffer, form));
// Build the call to the yav.init with the proper form name
buffer.append("function yavInit() {\n");
buffer.append(" yav.init('" + formName + "', rules);\n");
buffer.append("}\n");
// Close the Yav script
buffer.append("</script>\n");
// Write the generated script into the response
Response response = RequestCycle.get().getResponse();
response.write(buffer.toString());
}
/**
* Get the client's time zone if that could be detected.
*
* @return The client's time zone
*/
public TimeZone getTimeZone() {
if (timeZone == null) {
String utc = getUtcOffset();
if (utc != null) {
// apparently it is platform dependent on whether you get the
// offset in a decimal form or not. This parses the decimal
// form of the UTC offset, taking into account several
// possibilities
// such as getting the format in +2.5 or -1.2
int dotPos = utc.indexOf('.');
if (dotPos >= 0) {
String hours = utc.substring(0, dotPos);
String hourPart = utc.substring(dotPos + 1);
if (hours.startsWith("+")) {
hours = hours.substring(1);
}
int offsetHours = Integer.parseInt(hours);
int offsetMins = (int) (Double.parseDouble(hourPart) * 6);
// construct a GMT timezone offset string from the retrieved
// offset which can be parsed by the TimeZone class.
AppendingStringBuffer sb = new AppendingStringBuffer("GMT");
sb.append(offsetHours > 0 ? "+" : "-");
sb.append(Math.abs(offsetHours));
sb.append(":");
if (offsetMins < 10) {
sb.append("0");
}
sb.append(offsetMins);
timeZone = TimeZone.getTimeZone(sb.toString());
} else {
int offset = Integer.parseInt(utc);
if (offset < 0) {
utc = utc.substring(1);
}
timeZone = TimeZone.getTimeZone("GMT" + ((offset > 0) ? "+" : "-") + utc);
}
String dstOffset = getUtcDSTOffset();
if (timeZone != null && dstOffset != null) {
TimeZone dstTimeZone = null;
dotPos = dstOffset.indexOf('.');
if (dotPos >= 0) {
String hours = dstOffset.substring(0, dotPos);
String hourPart = dstOffset.substring(dotPos + 1);
if (hours.startsWith("+")) {
hours = hours.substring(1);
}
int offsetHours = Integer.parseInt(hours);
int offsetMins = (int) (Double.parseDouble(hourPart) * 6);
// construct a GMT timezone offset string from the
// retrieved
// offset which can be parsed by the TimeZone class.
AppendingStringBuffer sb = new AppendingStringBuffer("GMT");
sb.append(offsetHours > 0 ? "+" : "-");
sb.append(Math.abs(offsetHours));
sb.append(":");
if (offsetMins < 10) {
sb.append("0");
}
sb.append(offsetMins);
dstTimeZone = TimeZone.getTimeZone(sb.toString());
} else {
int offset = Integer.parseInt(dstOffset);
if (offset < 0) {
dstOffset = dstOffset.substring(1);
}
dstTimeZone = TimeZone.getTimeZone("GMT" + ((offset > 0) ? "+" : "-") + dstOffset);
}
// if the dstTimezone (1 July) has a different offset then
// the real time zone (1 January) try to combine the 2.
if (dstTimeZone != null && dstTimeZone.getRawOffset() != timeZone.getRawOffset()) {
int dstSaving = dstTimeZone.getRawOffset() - timeZone.getRawOffset();
String[] availableIDs = TimeZone.getAvailableIDs(timeZone.getRawOffset());
for (String availableID : availableIDs) {
TimeZone zone = TimeZone.getTimeZone(availableID);
if (zone.getDSTSavings() == dstSaving) {
// this is a best guess... still the start and end of the DST should
// be needed to know to be completely correct, or better yet
// not just the GMT offset but the TimeZone ID should be transfered
// from the browser.
timeZone = zone;
break;
}
}
}
}
}
}
return timeZone;
}
/**
* @see org.apache.wicket.Component#onComponentTagBody(org.apache.wicket.markup.MarkupStream,
* org.apache.wicket.markup.ComponentTag)
*/
@Override
protected final void onComponentTagBody(
final MarkupStream markupStream, final ComponentTag openTag) {
// Iterate through choices
final List<? extends T> choices = getChoices();
// Buffer to hold generated body
final AppendingStringBuffer buffer = new AppendingStringBuffer(70 * (choices.size() + 1));
// Value of this choice
final String selected = getValue();
// Loop through choices
for (int index = 0; index < choices.size(); index++) {
// Get next choice
final T choice = choices.get(index);
Object displayValue = getChoiceRenderer().getDisplayValue(choice);
Class<?> objectClass = displayValue == null ? null : displayValue.getClass();
// Get label for choice
String label = "";
if (objectClass != null && objectClass != String.class) {
IConverter converter = getConverter(objectClass);
label = converter.convertToString(displayValue, getLocale());
} else if (displayValue != null) {
label = displayValue.toString();
}
// If there is a display value for the choice, then we know that the
// choice is automatic in some way. If label is /null/ then we know
// that the choice is a manually created checkbox tag at some random
// location in the page markup!
if (label != null) {
// Append option suffix
buffer.append(getPrefix());
String id = getChoiceRenderer().getIdValue(choice, index);
final String idAttr = getMarkupId() + "-" + getInputName() + "_" + id;
// Add checkbox element
buffer
.append("<input name=\"")
.append(getInputName())
.append("\"")
.append(" type=\"checkbox\"");
if (!Strings.isEmpty(getCheckBoxCssClass())) {
buffer.append(" class=\"").append(getCheckBoxCssClass()).append("\"");
}
buffer
.append((isSelected(choice, index, selected) ? " checked=\"checked\"" : ""))
.append(
(isEnabledInHierarchy() && !isDisabled(choice, index, selected)
? ""
: " disabled=\"disabled\""))
.append(" value=\"")
.append(id)
.append("\" id=\"")
.append(idAttr)
.append("\"/>");
// Add label for checkbox
String display = label;
if (localizeDisplayValues()) {
display = getLocalizer().getString(label, this, label);
}
CharSequence escaped = display;
if (getEscapeModelStrings()) {
escaped = Strings.escapeMarkup(display);
}
buffer.append("<label for=\"").append(idAttr).append("\"");
if (!Strings.isEmpty(getCheckBoxLabelCssClass())) {
buffer.append(" class=\"").append(getCheckBoxLabelCssClass()).append("\"");
}
buffer.append(">").append(escaped).append("</label>");
// Append option suffix
buffer.append(getSuffix());
}
}
// Replace body
replaceComponentTagBody(markupStream, openTag, buffer);
}
