[qooxdoo-bugs] [Bug 296] New: API viewer doesn't show selected tree node if parent not "open"

[<bug...@qo...>]

http://bugzilla.qooxdoo.org/show_bug.cgi?id=296

           Summary: API viewer doesn't show selected tree node if parent not
                    "open"
           Product: tools
           Version: 0.6.5
          Platform: All
               URL: http://api.qooxdoo.org/current/#qx.type.Range
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: api
        AssignedTo: no...@qo...
        ReportedBy: hg...@ci...
         QAContact: qoo...@li...
 BugsThisDependsOn: 294


If you click on a link in the API viewer that takes you to another class, that
class is loaded on the right hand side. In addition the tree node is selected.

However, if the node was not displayed because the parent wasn't expanded, then
you can't tell where the node is in the tree. As an example, click on the URL
I've provided, then click on qx.core.Object. You can't tell where you are in
the tree. Now, expand qx.core in the tree, go back to qx.type.Range, and click
on qx.core.Object again - you will see it selected in the tree.

I had to implement code to automatically open a selected node in the tree in
our product - it goes something like this:

   //
   // Find all parent folders
   //
   var oTreeFolder = treeNode;
   var loParentFolders = [];                    // need to open folders in
sequence from root
   while (oTreeFolder)                          // while we haven't gone off
the top
      {
      oTreeFolder = oTreeFolder.getParentFolder(); // get parent
      loParentFolders.push(oTreeFolder);        // remember parent
      };
   //
   // Now open all folders, starting at the top
   //
   loParentFolders.pop();                       // pop empty folder at end
   while (loParentFolders.length)               // while we have some parents
      {
      loParentFolders.pop().open();             // get last one, and open it.
      };

This would be needed in apiviewer.Viewer.showClassNyName before the call to 

treeNode.setSelected(true)

Maybe it would be better to add this to TreeFolder as a new API - something
like "ensureVisible". See bug 294.

Hugh


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