private MContext getParentWithContext(MUIElement part) {
MElementContainer<MUIElement> parent = part.getParent();
MUIElement intermediate = parent;
if (intermediate == null) {
intermediate = part;
} else {
while (parent != null) {
if (parent instanceof MContext) {
if (((MContext) parent).getContext() != null) return (MContext) parent;
}
intermediate = parent;
parent = parent.getParent();
}
}
MPlaceholder placeholder = modelService.findPlaceholderFor(getWindow(), intermediate);
parent = placeholder.getParent();
while (parent != null) {
if (parent instanceof MContext) {
if (((MContext) parent).getContext() != null) return (MContext) parent;
}
parent = parent.getParent();
}
return null;
}
/** @param parent */
private void setStackVisibility(MElementContainer<MUIElement> parent) {
for (MUIElement child : parent.getChildren()) {
if (child.isToBeRendered() && child.isVisible()) {
parent.setToBeRendered(true);
return;
}
}
parent.setToBeRendered(false);
// continue modifying the visibility as the parent's parent may also
// need to be hidden from the user
setStackVisibility(parent.getParent());
}
@SuppressWarnings("unchecked")
public void exchange() {
MPart activeEditor = partService.getActivePart();
MElementContainer<MUIElement> oldEditorStack = activeEditor.getParent();
MElementContainer<MUIElement> splitSash = oldEditorStack.getParent();
if (splitSash.getChildren().size() != 2) {
return;
}
int oldStackIndex = splitSash.getChildren().indexOf(oldEditorStack);
MElementContainer<MUIElement> newEditorStack =
(MElementContainer<MUIElement>) splitSash.getChildren().get(oldStackIndex == 1 ? 0 : 1);
exchange_editor_with_selected_in_new_stack(activeEditor, oldEditorStack, newEditorStack);
activate(activeEditor);
}
private void createElement(MUIElement element) {
if (modelService.isHostedElement(element, workbenchWindow)) {
// assume the client has full control
return;
}
MPlaceholder placeholder = element.getCurSharedRef();
if (placeholder != null) {
element.setToBeRendered(true);
element = placeholder;
}
// render this element
element.setToBeRendered(true);
// render all of its parents
MUIElement parentWindow = workbenchWindow;
// determine the top parent that needs to be forcibly created
MUIElement target = null;
MElementContainer<MUIElement> parent = element.getParent();
while (parent != null && parent != parentWindow) {
parent.setToBeRendered(true);
if (parent.getWidget() == null) {
target = parent;
}
parent = parent.getParent();
}
if (target != null) {
// force the element's parent hierarchy to be created
engine.createGui(target);
}
// ask the engine to create the element
if (element.getWidget() == null) engine.createGui(element);
parent = element.getParent();
if (parent != null && parent.getChildren().size() == 1) {
// if we're the only child, set ourselves as the selected element
parent.setSelectedElement(element);
}
}