clickToEdit

by bhatnagar018

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<div data-bind="clickToEdit: message"></div>

JavaScript

ko.bindingHandlers.hidden = {
    update: function(element, valueAccessor) {
        ko.bindingHandlers.visible.update(element, function() { return !ko.utils.unwrapObservable(valueAccessor()); });
    }        
};

ko.bindingHandlers.clickToEdit = {
    init: function(element, valueAccessor) {
        var observable = valueAccessor(),
            link = document.createElement("a"),
            input = document.createElement("input");

        element.appendChild(link);
        element.appendChild(input);

        observable.editing = ko.observable(false);

        ko.applyBindingsToNode(link, {
            text: observable,
            hidden: observable.editing,
            click: function() { observable.editing(true); }
        });

        ko.applyBindingsToNode(input, {
            value: observable,
            visible: observable.editing,
            hasfocus: observable.editing
        });
    }
};

ko.applyBindings({ message: ko.observable("Welcome to camp!") });