notify: support sub views

[oliverfoster]

• handle a pre-instantiated sub view
• allow sub view to force the notify to resize
• allow sub view to close the notify
• allow sub view to cancel the notify (triggers notify:cancelled)
• provide a hook to sub view to run when popup is opened
• provide hook to to sub view to run when popup is closed
• provide mechanism to stop notify being cancellable

[oliverfoster]

pr allows:

define([
    'core/js/adapt'
], function(Adapt) {

    var PopupView = Backbone.View.extend({

        initialize: function() {
              this.listenToOnce(Adapt, "notify:opened", this.onOpened);
        },

        onOpened: function(notifyView) {
              // notifyView.subView === this
        },

        remove: function() {
              // called when notify is closed
        }

    });

    return PopupView;

});

 

Adapt.trigger("notify:popup", {
    title: "Testing",
    _isCancellable: false, // hides close button and stops esc and shadow close (default true)
    _view: new PopupView({ model: new Backbone.Model({}) })
});

Adapt.trigger("notify:cancel");
Adapt.trigger("notify:close");
Adapt.trigger("notify:resize");

[oliverfoster]

need to add a flag to stop the notify from being closed with a background click
_isCancellable added to notifyObject

[oliverfoster]

also solves #1759