Different results when forwarding from Menuitem, Treeitem and Treecell

asked 2013-02-15 16:32:36 +0800

cocoes
94 ● 6

updated 2013-02-19 10:12:57 +0800

Hi!

I'm developing a very complex tool, managed by events and a per-user thread that updates UI very often. I use MVC and a lot of Executions.schedule events all around. I use EE 6.5.1.1.

My current problem is a dinamically generated Tree, where I want to forward to the window listener depending on the column and row that the user "clicks" or "double-clicks". But what works when I forward from a MenuItem added to the tree rows, doesn't works If I try to forward from the Treecell or from the treeitem.

In fact, it has a estrange behaviour, because some times the forward to the window listener doesn't receives the event until an other event happens, like if it's waiting for other events to execute itself.

I've tryed to change the target component of the forward to the main page event listener, but it doesn't helps at all...

It's impossible to reproduce all the application, so I would likt to know if I'm missing anything in the following code:

public void render(Treeitem treeItem, Object data, int arg2) throws Exception {
...
DefaultTreeNode treeNode = (DefaultTreeNode) data;
treeItem.setValue(treeNode);
Treerow tr;
if (treeItem.getTreerow() == null) {
    tr = new Treerow();
    tr.setParent(treeItem);
} else {
    tr = treeItem.getTreerow();
    tr.getChildren().clear();
}
...
Treecell mycell=new Treecell();
Div mydiv=new Div();
mydiv.appendChild(new Label("some text"));
mycell.appendChild(mydiv);
mycell.addEventListener(Events.ON_CLICK, new EventListener() { 
    public void onEvent(Event event) throws Exception {
        // 1. THIS DON'T WORKS
        ComponentsCtrl.applyForward(event.getTarget(), "pageid.onMyMethod");
    }
});
tr.appendChild(mycell);
...

treeItem.addEventListener(Events.ON_CLICK, new EventListener() { 
    public void onEvent(Event event) throws Exception {
        // 2. THIS DON'T WORKS
        ComponentsCtrl.applyForward(event.getTarget(), "pageid.onMyMethod");
}
});             
...

Menupopup popup=new Menupopup();
popup.setPage(treeItem.getPage());
Menuitem mnc=new Menuitem("Mytitle");
mnc.addEventListener(Events.ON_CLICK , new EventListener() { 
    public void onEvent(Event event) throws Exception {
        // 3. THIS WORKS
        ComponentsCtrl.applyForward(event.getTarget(), "pageid.onMyMethod");
    }
});
popup.appendChild(mnc);
tr.setContext(popup);

@hswain

It took me some time but here it is:

http://zkfiddle.org/sample/2rru3vv/1-Forward-include-and-test-owner-test

To test it just click in the first cell of the first row "1". It will show a messagebox if you click on it, and tryes to forward the event to the main controller listener, but it never does. On the other hand, if you right click on it and execute the menu option "A", it will execute the two messages, the one from the tree renderer right click event, and the message from the main window event listener.

From what I guess, as it is explained here: http://forum.zkoss.org/question/62833/id-spaces-space-owners-for-complex-nested-structures/

, the problem is the include element, that changes the space owner and is not allowing me to do the forward from a treecell inside the include to the main window event listener. But what is curious is that I can do the forward from a right-click menu from the same tree.

I've also tryed getting the component from ComponentsCtrl.applyForward( Path.getComponent("//"), "XXX.onYYY") , but it also doesn't works. I still don't know how to communicate from the event in one of the include's element with the main window with a forward...

Any idea?

Thanks in advance.