Sha256: 3a9c5e7f68c5523bc36628a896411db073229d3b5dc410819a00793bc25f3c03
Contents?: true
Size: 1.67 KB
Versions: 24
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Stored size: 1.67 KB
Contents
(function(ko, $) {
"use strict";
ko.bindingHandlers.waitForVm = {
init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
var vmName = ko.unwrap(valueAccessor()),
subscription,
childVm;
childVm = ko.utils.arrayFirst(viewModel._childVms(), function(item) {
return item._viewmodelName() === vmName;
});
// if the child viewmodel isn't available yet...
if (!childVm) {
// subscribe to the list of child viewmodels
subscription = viewModel._childVms.subscribe(function() {
childVm = ko.utils.arrayFirst(viewModel._childVms(), function(item) {
return item._viewmodelName() === vmName;
});
// and if it has become available now, remove the subscription,
// apply the bindings to our child elements and make ourselves visible
if (childVm) {
subscription.dispose();
ko.applyBindingsToDescendants(bindingContext, element);
ko.bindingHandlers.visible.update(element, function() { return childVm; }, allBindingsAccessor, viewModel, bindingContext);
}
});
}
// hide ourselves and our children if the viewmodel isn't
// immediately available on init().
ko.bindingHandlers.visible.update(element, function() { return childVm; }, allBindingsAccessor, viewModel, bindingContext);
// prevent our descendant elements from being bound if the
// viewmodel isn't immediately available on init(). We will
// take care of that later ourselves through ko.applyBindingsToDescendants
return {controlsDescendantBindings: !childVm};
}
};
})(ko, $);
Version data entries
24 entries across 24 versions & 1 rubygems