/**
* Sets the active item. The component must be of type <code>Item</code> to be activated. All
* other types are ignored.
*
* @param c the component to set active
* @param autoExpand true to auto expand the item
*/
public void setActiveItem(Component c, boolean autoExpand) {
if (c == null) {
deactiveActiveItem();
return;
}
if (c instanceof Item) {
Item item = (Item) c;
if (item != activeItem) {
deactiveActiveItem();
this.activeItem = item;
item.activate(autoExpand);
item.el().scrollIntoView(ul.dom, false);
focus();
if (GXT.isFocusManagerEnabled()) {
FocusFrame.get().frame(item);
Accessibility.setState(getElement(), "aria-activedescendant", item.getId());
}
} else if (autoExpand) {
item.expandMenu(autoExpand);
}
}
}
@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);
}
}
@Override
protected void onFocus(ComponentEvent ce) {
super.onFocus(ce);
if (GXT.isFocusManagerEnabled()) {
if (focusWidget != null) {
El.fly(focusWidget.getElement()).focus();
}
}
}
protected void deactiveActiveItem() {
if (activeItem != null) {
activeItem.deactivate();
activeItem = null;
}
if (GXT.isFocusManagerEnabled()) {
FocusFrame.get().unframe();
Accessibility.setState(getElement(), "aria-activedescendant", "");
}
}
@Override
protected void onFocus(ComponentEvent ce) {
super.onFocus(ce);
if (GXT.isFocusManagerEnabled()) {
if (checkboxToggle && checkbox != null) {
checkbox.focus();
} else if (collapseBtn != null) {
collapseBtn.focus();
}
}
}
protected void onKeyPress(WindowEvent we) {
int keyCode = we.getKeyCode();
boolean t =
getElement()
.isOrHasChild(
(com.google.gwt.dom.client.Element) we.getEvent().getEventTarget().cast());
boolean key = GXT.isFocusManagerEnabled() ? we.isShiftKey() : true;
if (key && closable && onEsc && keyCode == KeyCodes.KEY_ESCAPE && t) {
hide();
}
if (GXT.isAriaEnabled()) {
if (we.getTarget() == moveBtn.getElement()) {
Point p = getPosition(true);
switch (we.getKeyCode()) {
case KeyCodes.KEY_LEFT:
setPosition(p.x - ariaMoveResizeDistance, p.y);
break;
case KeyCodes.KEY_RIGHT:
setPosition(p.x + ariaMoveResizeDistance, p.y);
break;
case KeyCodes.KEY_DOWN:
setPosition(p.x, p.y + ariaMoveResizeDistance);
break;
case KeyCodes.KEY_UP:
setPosition(p.x, p.y - ariaMoveResizeDistance);
break;
}
} else if (we.getTarget() == resizeBtn.getElement()) {
if (!resizable) {
return;
}
Size s = getSize();
switch (we.getKeyCode()) {
case KeyCodes.KEY_LEFT:
setSize(s.width - ariaMoveResizeDistance, s.height);
break;
case KeyCodes.KEY_RIGHT:
setSize(s.width + ariaMoveResizeDistance, s.height);
break;
case KeyCodes.KEY_DOWN:
setSize(s.width, s.height + ariaMoveResizeDistance);
break;
case KeyCodes.KEY_UP:
setSize(s.width, s.height - ariaMoveResizeDistance);
break;
}
}
}
}
protected void onRender(Element target, int index) {
setElement(DOM.createDiv(), target, index);
addStyleName("x-icon-btn");
addStyleName("x-nodrag");
addStyleName(style);
sinkEvents(Event.ONCLICK | Event.MOUSEEVENTS | Event.FOCUSEVENTS | Event.ONKEYUP);
super.onRender(target, index);
if (GXT.isHighContrastMode) {
getElement().setInnerHTML("<i> </i>");
}
if (GXT.isFocusManagerEnabled()) {
el().setTabIndex(0);
Accessibility.setRole(getElement(), Accessibility.ROLE_BUTTON);
}
}
protected void onFocus(ComponentEvent ce) {
if (GXT.isFocusManagerEnabled() && !GXT.isIE) {
FocusFrame.get().frame(this);
}
}
protected void onBlur(ComponentEvent ce) {
if (GXT.isFocusManagerEnabled()) {
FocusFrame.get().unframe();
}
}