@Override protected void onRender(Element parent, int pos) { setElement(DOM.createFieldSet(), parent, pos); legend = new El(DOM.createLegend()); legend.addStyleName("x-fieldset-header"); if (checkboxToggle && collapsible) { checkbox = DOM.createInputCheck().cast(); sinkEvents(Event.ONCLICK); if (checkboxName != null) { checkbox.setAttribute("name", checkboxName); } legend.appendChild((Element) checkbox.cast()); checkbox.setDefaultChecked(!collapsed); checkbox.setChecked(!collapsed); if (GXT.isAriaEnabled()) { checkbox.setTitle("Expand " + html); } } else if (!checkboxToggle && collapsible) { collapseBtn = new ToolButton("x-tool-toggle"); collapseBtn.addListener( Events.Select, new Listener<ComponentEvent>() { public void handleEvent(ComponentEvent be) { setExpanded(!isExpanded()); } }); collapseBtn.render(legend.dom); collapseBtn.getAriaSupport().setRole("checkbox"); if (GXT.isAriaEnabled()) { collapseBtn.setTitle("Expand " + html); } ComponentHelper.setParent(this, collapseBtn); } heading = DOM.createSpan(); heading.setClassName("x-fieldset-header-text"); legend.appendChild(heading); getElement().appendChild(legend.dom); body = el().appendChild(DOM.createDiv()); if (html != null) { setHeadingHtml(html); } if (collapsed) { onCollapse(); } updateIconTitles(); if (GXT.isFocusManagerEnabled() && !getFocusSupport().isIgnore()) { el().setTabIndex(0); el().setElementAttribute("hideFocus", "true"); sinkEvents(Event.FOCUSEVENTS); } }