private void processPropertyBindings(Component comp, String propName) {
final ComponentCtrl compCtrl = (ComponentCtrl) comp;
// validator and converter information
ValidatorInfo validatorInfo = parseValidator(compCtrl, propName);
ConverterInfo converterInfo = parseConverter(compCtrl, propName);
// scan init
Collection<Annotation> initannos = compCtrl.getAnnotations(propName, INIT_ANNO);
if (initannos.size() > 1) {
throw new IllegalSyntaxException("Allow only one @init for " + propName + " of " + comp);
} else if (initannos.size() == 1) {
processPropertyInit(comp, propName, initannos.iterator().next(), converterInfo);
}
Collection<Annotation> annos =
compCtrl.getAnnotations(propName); // init in the annotation with the sequence
for (Annotation anno : annos) {
if (anno.getName().equals(BIND_ANNO)) {
processPropertyPromptBindings(comp, propName, anno, converterInfo, validatorInfo);
} else if (anno.getName().equals(LOAD_ANNO)) {
processPropertyLoadBindings(comp, propName, anno, converterInfo);
} else if (anno.getName().equals(SAVE_ANNO)) {
processPropertySaveBindings(comp, propName, anno, converterInfo, validatorInfo);
}
}
}
private void processCommandBinding(Component comp, String propName) {
final ComponentCtrl compCtrl = (ComponentCtrl) comp;
final Collection<Annotation> anncol = compCtrl.getAnnotations(propName, COMMAND_ANNO);
if (anncol.size() == 0) return;
if (anncol.size() > 1) {
throw new IllegalSyntaxException(
"Allow only one command binding for event " + propName + " of " + compCtrl);
}
final Annotation ann = anncol.iterator().next();
final Map<String, String[]> attrs = ann.getAttributes(); // (tag, tagExpr)
Map<String, String[]> args = null;
final List<String> cmdExprs = new ArrayList<String>();
for (final Iterator<Entry<String, String[]>> it = attrs.entrySet().iterator(); it.hasNext(); ) {
final Entry<String, String[]> entry = it.next();
final String tag = entry.getKey();
final String[] tagExpr = entry.getValue();
if ("value".equals(tag)) {
cmdExprs.add(testString(comp, propName, tag, tagExpr));
} else { // other unknown tag, keep as arguments
if (args == null) {
args = new HashMap<String, String[]>();
}
args.put(tag, tagExpr);
}
}
final Map<String, Object> parsedArgs = args == null ? null : parsedArgs(args);
for (String cmd : cmdExprs) {
_binder.addCommandBinding(comp, propName, cmd, parsedArgs);
}
}
private void processFormBindings(Component comp) {
final ComponentCtrl compCtrl = (ComponentCtrl) comp;
final BindEvaluatorX eval = _binder.getEvaluatorX();
// validator information
ValidatorInfo validatorInfo = parseValidator(compCtrl, FORM_ATTR);
String formId = null;
Collection<Annotation> idannos = compCtrl.getAnnotations(FORM_ATTR, ID_ANNO);
if (idannos.size() == 0) {
throw new IllegalSyntaxException("@id is not found for a form binding of " + compCtrl);
} else if (idannos.size() > 1) {
throw new IllegalSyntaxException("Allow only one @id for a form binding of " + compCtrl);
}
final Annotation idanno = idannos.iterator().next();
final String idExpr = idanno.getAttribute("value");
if (idExpr != null) {
formId = BindEvaluatorXUtil.eval(eval, comp, idExpr, String.class);
}
if (formId == null) {
throw new UiException(
"value of @id is not found for a form binding of "
+ compCtrl
+ ", exprssion is "
+ idExpr);
}
// scan init first
Collection<Annotation> initannos = compCtrl.getAnnotations(FORM_ATTR, INIT_ANNO);
if (initannos.size() > 1) {
throw new IllegalSyntaxException("Allow only one @init for " + FORM_ATTR + " of " + comp);
} else if (initannos.size() == 1) {
processFormInit(comp, formId, initannos.iterator().next());
}
Collection<Annotation> annos =
compCtrl.getAnnotations(FORM_ATTR); // get all annotation in the form with the order.
for (Annotation anno : annos) {
if (anno.getName().equals(LOAD_ANNO)) {
processFormLoadBindings(comp, formId, anno);
} else if (anno.getName().equals(SAVE_ANNO)) {
processFormSaveBindings(comp, formId, anno, validatorInfo);
}
}
}
/**
* Process the event. Note: it doesn't invoke EventThreadInit and EventThreadCleanup.
*
* <p>This method is to implement {@link org.zkoss.zk.ui.sys.EventProcessingThread}. See also
* {@link org.zkoss.zk.ui.util.Configuration#isEventThreadEnabled}.
*/
public void process() throws Exception {
final ExecutionMonitor execmon = _desktop.getWebApp().getConfiguration().getExecutionMonitor();
// Bug 1506712: event listeners might be zscript, so we have to
// keep built-in variables as long as possible
final Scope scope = Scopes.beforeInterpret(_comp);
// we have to push since process0 might invoke methods from zscript class
try {
Scopes.setImplicit("event", _event);
_event = ((DesktopCtrl) _desktop).beforeProcessEvent(_event);
if (_event != null) {
if (execmon != null) execmon.eventStart(_event);
Scopes.setImplicit("event", _event); // _event might change
((ComponentCtrl) _comp).service(_event, scope);
((DesktopCtrl) _desktop).afterProcessEvent(_event);
}
} finally {
final Execution exec = _desktop.getExecution();
if (exec != null) // just in case
((ExecutionCtrl) exec).setExecutionInfo(null);
if (execmon != null && _event != null) execmon.eventComplete(_event);
Scopes.afterInterpret();
}
}
private ValidatorInfo parseValidator(ComponentCtrl compCtrl, String propName) {
final Collection<Annotation> annos = compCtrl.getAnnotations(propName, VALIDATOR_ANNO);
if (annos.size() == 0) return null;
if (annos.size() > 1) {
throw new IllegalSyntaxException(
"Allow only one validator for " + propName + " of " + compCtrl);
}
final Annotation anno = annos.iterator().next();
ValidatorInfo info = new ValidatorInfo();
Map<String, String[]> args = null;
for (final Iterator<Entry<String, String[]>> it = anno.getAttributes().entrySet().iterator();
it.hasNext(); ) {
final Entry<String, String[]> entry = it.next();
final String tag = entry.getKey();
final String[] tagExpr = entry.getValue();
if ("value".equals(tag)) {
info.expr = testString(compCtrl, propName, tag, tagExpr);
} else { // other unknown tag, keep as arguments
if (args == null) {
args = new HashMap<String, String[]>();
}
args.put(tag, tagExpr);
}
}
if (Strings.isBlank(info.expr)) {
throw new IllegalSyntaxException(
"Must specify a validator for " + propName + " of " + compCtrl);
}
info.args = args == null ? null : parsedArgs(args);
return info;
}
private void processComponentBindings0(Component comp) {
final ComponentCtrl compCtrl = (ComponentCtrl) comp;
final List<String> props =
compCtrl.getAnnotatedProperties(); // look every property has annotation
for (final Iterator<?> it = props.iterator(); it.hasNext(); ) {
final String propName = (String) it.next();
if (isEventProperty(propName)) {
processCommandBinding(comp, propName);
} else if (FORM_ATTR.equals(propName)) {
processFormBindings(comp);
} else if (VIEW_MODEL_ATTR.equals(propName)) {
// ignore
} else if (BINDER_ATTR.equals(propName)) {
// ignore
} else {
processPropertyBindings(comp, propName);
}
}
}
public void redraw(Writer out) throws java.io.IOException {
// Note: _tag == null can NOT be handled specially
final Execution exec = Executions.getCurrent();
final boolean root =
getParent() == null
&& (getPage().isComplete()
|| (exec != null && "complete".equals(ExecutionsCtrl.getPageRedrawControl(exec))));
if (exec == null
|| exec.isAsyncUpdate(null)
|| (!root && !HtmlPageRenders.isDirectContent(exec))) {
super.redraw(out); // renderProperties (assume in zscript)
return;
}
Writer oldout = null;
if (exec != null
&& !HtmlPageRenders.isZkTagsGenerated(exec)
&& exec.getAttribute(ATTR_TOP_NATIVE) == null) { // need to check topmost native only
String tn;
if (root
|| "html".equals(tn = _tag != null ? _tag.toLowerCase() : "")
|| "body".equals(tn)
|| "head".equals(tn)) {
exec.setAttribute(ATTR_TOP_NATIVE, Boolean.TRUE);
oldout = out;
out = new StringWriter();
}
}
out.write(getPrologHalf());
// children
Component child = getFirstChild();
if (child == null) {
// need to invoke outStandalone to generate response if any (Bug 3009925)
// however, it is not required if not root (since others will invoke)
if (root) HtmlPageRenders.outStandalone(exec, null, out);
} else {
if (root) HtmlPageRenders.setDirectContent(exec, true);
do {
Component next = child.getNextSibling();
if (child instanceof Native
|| ((ComponentCtrl) child).getExtraCtrl() instanceof DirectContent) {
((ComponentCtrl) child).redraw(out);
} else {
HtmlPageRenders.setDirectContent(exec, false);
HtmlPageRenders.outStandalone(exec, child, out);
HtmlPageRenders.setDirectContent(exec, true);
}
child = next;
} while (child != null);
}
out.write(getEpilogHalf());
if (oldout != null) {
exec.removeAttribute(ATTR_TOP_NATIVE);
// order: <html><head><zkhead><body>
// 1. replace <zkhead/> if found
// 2. insert before </head> if found
// 3. insert after <body> if found
// 4. insert after <html> if found
// 5. insert at the end if none of above found
final StringBuffer sb = ((StringWriter) out).getBuffer();
if (!HtmlPageRenders.isZkTagsGenerated(exec)) {
int jhead = -1, // anchor of header
junav = -1, // anchor of unavailable
head = -1, // index of <head>
heade = -1, // index of </head>
html = -1; // index of <html>
for (int j = 0, len = sb.length(); (j = sb.indexOf("<", j)) >= 0; ) {
++j;
if (jhead < 0 && startsWith(sb, "zkhead", j)) {
int l = Strings.indexOf(sb, '>', j) + 1;
sb.delete(jhead = --j, l); // jhead found
len = sb.length();
} else if (head < 0 && startsWith(sb, "head", j)) {
head = Strings.indexOf(sb, '>', j) + 1;
} else if (html < 0 && startsWith(sb, "html", j)) {
html = Strings.indexOf(sb, '>', j) + 1;
} else if (junav < 0 && startsWith(sb, "body", j)) {
junav = Strings.indexOf(sb, '>', j) + 1; // junav found
break; // done
} else if (sb.charAt(j) == '/' && startsWith(sb, "head", ++j)) {
heade = j - 2;
}
}
boolean disableUnavailable = false;
if (jhead < 0
&& ((jhead = heade) < 0) // use </head> if no <zkhead>
&& ((jhead = head) < 0) // use <head> if no </head> (though unlikely)
&& ((jhead = junav) < 0) // use <body> if no <head>
&& ((jhead = html) < 0)) { // use <html> if no <body>
if (_tag != null) {
final String tn = _tag.toLowerCase();
if ("div".equals(tn) || "span".equals(tn)) {
l_loop:
for (int j = 0, len = sb.length(); j < len; ++j)
switch (sb.charAt(j)) {
case '>':
disableUnavailable = true; // make output cleaner
jhead = j + 1; // found
case '=': // it might have something depends on JS
case '"':
break l_loop;
}
}
}
if (jhead < 0) jhead = 0; // insert at head if not found
}
final String msg = HtmlPageRenders.outUnavailable(exec);
// called if disableUnavailable (so it won't be generated later)
if (msg != null && !disableUnavailable) {
if (junav < 0) {
if (html >= 0) junav = sb.lastIndexOf("</html");
}
if (junav >= 0) sb.insert(junav < jhead ? jhead : junav, msg);
else sb.append(msg);
}
final String zktags = HtmlPageRenders.outHeaderZkTags(exec, getPage());
if (zktags != null) sb.insert(jhead, zktags);
}
oldout.write(sb.toString());
}
}