[Pharo-users] Trying to understand the "display: children:" messages of Moose browsers.

[Offray Vladimir Luna Cárdenas]

Hi,

I'm trying to understand the workings of the "display: children:" 
message of Moose Browsers. Based on the Help Browser example, I have 
write a node object which contains a header, a body and a ordered 
collection of Children, wich are other nodes. Now I would like to use 
moose browsers to navigate a tree made of such nodes. For that I am 
modifying the "packagesIn:" tree of the PBE2 book example in the Moose 
chapter. I have something like this:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

UbakyeBrowser>>packagesIn: constructor
        | defaultTree |
        
        defaultTree := UbakyeNode new.
        defaultTree becomeDefaultTree.
        constructor tree
                display: [:treeHeaders | treeHeaders := defaultTree headers];
                children: [:currentNode | self headersOf: currentNode ];
                format: #asString

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


The display part is working just because I'm sending a collection of 
node names (headers), but I don't know how to relate the current 
selected node with the things that should be shown by the "children:" 
message. Any help on this is appreciated.

By the way, I would like to share my code and point to it, instead of 
sharing just cut and pasted snippets, because may be I'm doing tons of 
errors in a lot of places. I have already asked in a separate thread 
about how to sync local cache and SmalltalkHub repos.

Cheers,

Offray