/** Called to push a new lexical scope onto the stack. */
private boolean lexicalClimb(PageCompilingContext pc, Node node) {
if (node.attr(ANNOTATION).length() > 1) {
// Setup a new lexical scope (symbol table changes on each scope encountered).
if (REPEAT_WIDGET.equalsIgnoreCase(node.attr(ANNOTATION_KEY))
|| CHOOSE_WIDGET.equalsIgnoreCase(node.attr(ANNOTATION_KEY))) {
String[] keyAndContent = {node.attr(ANNOTATION_KEY), node.attr(ANNOTATION_CONTENT)};
pc.lexicalScopes.push(new MvelEvaluatorCompiler(parseRepeatScope(pc, keyAndContent, node)));
return true;
}
// Setup a new lexical scope for compiling against embedded pages (closures).
final PageBook.Page embed = pageBook.forName(node.attr(ANNOTATION_KEY));
if (null != embed) {
final Class<?> embedClass = embed.pageClass();
MvelEvaluatorCompiler compiler = new MvelEvaluatorCompiler(embedClass);
checkEmbedAgainst(
pc, compiler, Parsing.toBindMap(node.attr(ANNOTATION_CONTENT)), embedClass, node);
pc.lexicalScopes.push(compiler);
return true;
}
}
return false;
}
private void checkFormFields(PageCompilingContext pc, Node element) {
if (null == pc.form) return;
String action = pc.form.attr("action");
// Only look at contextual uris (i.e. hosted by us).
// TODO - relative, not starting with '/'
if (null == action || (!action.startsWith("/"))) return;
final PageBook.Page page = pageBook.get(action);
// Only look at pages we actually have registered.
if (null == page) {
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(line(element))
.causedBy(CompileErrors.UNRESOLVABLE_FORM_ACTION));
return;
}
// If we're inside a form do a throw-away compile against the target page.
if ("input".equals(element.nodeName()) || "textarea".equals(element.nodeName())) {
String name = element.attr("name");
// Skip submits and buttons.
if (skippable(element.attr("type"))) return;
// TODO Skip empty?
if (null == name) {
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(line(element))
.causedBy(CompileErrors.FORM_MISSING_NAME));
return;
}
// Compile expression path.
try {
new MvelEvaluatorCompiler(page.pageClass()).compile(name);
} catch (ExpressionCompileException e) {
// TODO Very hacky, needed to strip out xmlns attribution.
pc.warnings.add(
CompileError.in(element.outerHtml())
.near(element.siblingIndex()) // TODO - line number
.causedBy(CompileErrors.UNRESOLVABLE_FORM_BINDING, e));
}
}
}