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Monkey-patch in ClutterContainer methods for NbtkBoxLayout

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Setting options for children added to NbtkBoxLayout is not convenient
since we are missing the varargs methods of clutter_container.

Patch in:

 child_set() - set properties of a child
 add() - add a child and set properties (this is different from
         clutter_container_add()! I think the deviation is
         with avoiding the awkward name add_with_properties()
         which is what might be expected. ClutterContainer
         currently doesn't have a method like this at all.)

The code is written to allow patching into multiple ClutterContainer
classes but for now only NbtkBoxLayout is patched, since it's the only
container we are using where we need to set options as properties.

https://bugzilla.gnome.org/show_bug.cgi?id=595419
This commit is contained in:
Owen W. Taylor 2009-09-16 19:53:55 -04:00
parent f1f11f1e76
commit a07af9fb14
1 changed files with 22 additions and 0 deletions
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22
js/ui/main.js
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@ -34,6 +34,28 @@ let recorder = null;
let modalCount = 0;
let modalActorFocusStack = [];
// "monkey patch" in some varargs ClutterContainer methods; we need
// to do this per-container class since there is no representation
// of interfaces in Javascript
function _patchContainerClass(containerClass) {
// This one is a straightforward mapping of the C method
containerClass.prototype.child_set = function(actor, props) {
let meta = this.get_child_meta(actor);
for (prop in props)
meta[prop] = props[prop];
};
// clutter_container_add() actually is a an add-many-actors
// method. We conveniently, but somewhat dubiously, take the
// this opportunity to make it do something more useful.
containerClass.prototype.add = function(actor, props) {
this.add_actor(actor);
if (props)
this.child_set(actor, props);
};
}
_patchContainerClass(Nbtk.BoxLayout);
function start() {
// Add a binding for "global" in the global JS namespace; (gjs
// keeps the web browser convention of having that namespace be