Allow to show or hide menu items

[joseivanlopez]

Note: This PR is going to be merged into sprint-108 branch instead of master. There are some WIP features (i.e., nesting tables) and they all will be merged together into master to bump so versions only once.

Problem

A new YMenuBar was added to libyui, but it lacks of the capability to show/hide items. Although such feature is not used by YaST at all, it is still useful for some third-party users of the library (i.e., libyui-mga).

• PBI: https://trello.com/c/U20esvtq/2041-3-menu-bar-api-call-to-hide-show-entries.
• Menu bar: https://github.com/libyui/libyui/pull/169.

Solution

Extend public API of YMenuBar to allow to indicate whether an item is visible or not. Note that it is possible to hide both: top level menus and also menu items.

See examples/MenuBar1.cc for an usage example.

• Allow to show or hide menu items libyui-qt#134

Changes

The sprint-108 branch is accumulating several new features. The plan is to merge them all into master and bump the so versions only once. At that time, we will provide an entry in the changes file. Here is a proposal for that changes entry:

* Resolve hotkeys conflicts for widgets with multiple hotkeys
  (related to bsc#1175489).
* Allow to show/hide menus and menu items (related to
  manatools/libyui-mga#1).
* Allow nested items in tables (bsc#1176402).

[mvidner]

Thanks!
Please add a *.changes entry too

[mvidner]

Please reference the mga issue manatools/libyui-mga#1

[joseivanlopez]

Thanks!
Please add a *.changes entry too

The plan is to add a big .changes entry when we are going to merge sprint-108 into master. Right now, sprint-108 contains several new features that deserve a comment in the changes file.

[joseivanlopez]

Please reference the mga issue manatools/libyui-mga#1

Commented here manatools/libyui-mga#1 (comment).

[mvidner]

Now I realize that ideally we should have an automated test case, but I am not done making the framework for that just yet 😃

But could you please have a look at yast/yast-ycp-ui-bindings#56 , specifically this test, and check whether examples/MenuBar1 would work using that approach?

[joseivanlopez]

Now I realize that ideally we should have an automated test case, but I am not done making the framework for that just yet smiley

But could you please have a look at yast/yast-ycp-ui-bindings#56 , specifically this test, and check whether examples/MenuBar1 would work using that approach?

Yes, I think we can follow that approach to test examples/MenuBar1. Initially, grep should find the menu label, and then, after "clicking" the "Visible" checkbox, the menu should not be found by grep.