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Commit fcc5981c authored by Stephen Sawchuk's avatar Stephen Sawchuk
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knockoutjs_require codestyle.

parent 27850eac
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labs/dependency-examples/knockoutjs_require/index.html
View file @ fcc5981c
......@@ -10,8 +10,7 @@
<section id="todoapp">
<header id="header">
<h1>todos</h1>
<input id="new-todo" type="text" data-bind="value: current, valueUpdate: 'afterkeydown', enterKey: add"
placeholder="What needs to be done?" autofocus>
<input id="new-todo" type="text" data-bind="value: current, valueUpdate: 'afterkeydown', enterKey: add" placeholder="What needs to be done?" autofocus>
</header>
<section id="main" data-bind="visible: todos().length">
<input id="toggle-all" type="checkbox" data-bind="checked: allCompleted">
......
labs/dependency-examples/knockoutjs_require/js/config/global.js
View file @ fcc5981c
/*global define */
// Author: Loïc Knuchel <loicknuchel@gmail.com>
define({
ENTER_KEY: 13,
localStorageItem: 'todos-knockout-require'
ENTER_KEY: 13,
localStorageItem: 'todos-knockout-require'
});
labs/dependency-examples/knockoutjs_require/js/extends/handlers.js
View file @ fcc5981c
/*global define */
define([
'knockout',
'config/global'
], function(ko, g){
'use strict';
// a custom binding to handle the enter key (could go in a separate library)
ko.bindingHandlers.enterKey = {
init: function( element, valueAccessor, allBindingsAccessor, data ) {
var wrappedHandler, newValueAccessor;
'knockout',
'config/global'
], function (ko, g) {
'use strict';
// a custom binding to handle the enter key (could go in a separate library)
ko.bindingHandlers.enterKey = {
init: function (element, valueAccessor, allBindingsAccessor, data) {
var wrappedHandler;
var newValueAccessor;
// wrap the handler with a check for the enter key
wrappedHandler = function( data, event ) {
if ( event.keyCode === g.ENTER_KEY ) {
valueAccessor().call( this, data, event );
}
};
// wrap the handler with a check for the enter key
wrappedHandler = function (data, event) {
if (event.keyCode === g.ENTER_KEY) {
valueAccessor().call(this, data, event);
}
};
// create a valueAccessor with the options that we would want to pass to the event binding
newValueAccessor = function() {
return {
keyup: wrappedHandler
};
};
// create a valueAccessor with the options that we would want to pass to the event binding
newValueAccessor = function () {
return {
keyup: wrappedHandler
};
};
// call the real event binding's init function
ko.bindingHandlers.event.init( element, newValueAccessor, allBindingsAccessor, data );
}
};
// call the real event binding's init function
ko.bindingHandlers.event.init(element, newValueAccessor, allBindingsAccessor, data);
}
};
// wrapper to hasfocus that also selects text and applies focus async
ko.bindingHandlers.selectAndFocus = {
init: function( element, valueAccessor, allBindingsAccessor ) {
ko.bindingHandlers.hasfocus.init( element, valueAccessor, allBindingsAccessor );
ko.utils.registerEventHandler( element, 'focus', function() {
element.focus();
} );
},
update: function( element, valueAccessor ) {
ko.utils.unwrapObservable( valueAccessor() ); // for dependency
// ensure that element is visible before trying to focus
setTimeout(function() {
ko.bindingHandlers.hasfocus.update( element, valueAccessor );
}, 0 );
}
};
// wrapper to hasfocus that also selects text and applies focus async
ko.bindingHandlers.selectAndFocus = {
init: function (element, valueAccessor, allBindingsAccessor) {
ko.bindingHandlers.hasfocus.init(element, valueAccessor, allBindingsAccessor);
ko.utils.registerEventHandler(element, 'focus', function () {
element.focus();
});
},
update: function (element, valueAccessor) {
ko.utils.unwrapObservable(valueAccessor()); // for dependency
// ensure that element is visible before trying to focus
setTimeout(function () {
ko.bindingHandlers.hasfocus.update(element, valueAccessor);
}, 0);
}
};
});
labs/dependency-examples/knockoutjs_require/js/extends/native.js deleted 100644 → 0
View file @ 27850eac
define(function(){
'use strict';
// trim polyfill
if ( !String.prototype.trim ) {
String.prototype.trim = function() {
return this.replace( /^\s+|\s+$/g, '' );
};
}
});
labs/dependency-examples/knockoutjs_require/js/main.js
View file @ fcc5981c
/*global require, window */
// Author: Loïc Knuchel <loicknuchel@gmail.com>
// Require.js allows us to configure shortcut alias
require.config({
paths: {
knockout: '../bower_components/knockout.js/knockout'
}
paths: {
knockout: '../bower_components/knockout.js/knockout'
}
});
require([
'knockout',
'config/global',
'viewmodels/todo',
'extends/handlers',
'extends/native'
], function(ko, g, TodoViewModel){
'use strict';
// var app_view = new AppView();
// check local storage for todos
var todos = ko.utils.parseJson( localStorage.getItem( g.localStorageItem ) );
'knockout',
'config/global',
'viewmodels/todo',
'extends/handlers'
], function (ko, g, TodoViewModel) {
'use strict';
// var app_view = new AppView();
// check local storage for todos
var todos = ko.utils.parseJson(window.localStorage.getItem(g.localStorageItem));
// bind a new instance of our view model to the page
ko.applyBindings( new TodoViewModel( todos || [] ) );
// bind a new instance of our view model to the page
ko.applyBindings(new TodoViewModel(todos || []));
});
labs/dependency-examples/knockoutjs_require/js/models/Todo.js
View file @ fcc5981c
/*global define */
define([
'knockout'
], function(ko){
'use strict';
// represent a single todo item
var Todo = function( title, completed ) {
this.title = ko.observable( title );
this.completed = ko.observable( completed );
this.editing = ko.observable( false );
};
return Todo;
'knockout'
], function (ko) {
'use strict';
// represent a single todo item
var Todo = function (title, completed) {
this.title = ko.observable(title);
this.completed = ko.observable(completed);
this.editing = ko.observable(false);
};
return Todo;
});
labs/dependency-examples/knockoutjs_require/js/viewmodels/todo.js
View file @ fcc5981c
/*global define, window */
define([
'knockout',
'config/global',
'models/Todo'
], function(ko, g, Todo){
'use strict';
// our main view model
var ViewModel = function( todos ) {
var self = this;
// map array of passed in todos to an observableArray of Todo objects
self.todos = ko.observableArray( ko.utils.arrayMap( todos, function( todo ) {
return new Todo( todo.title, todo.completed );
}));
// store the new todo value being entered
self.current = ko.observable();
// add a new todo, when enter key is pressed
self.add = function() {
var current = self.current().trim();
if ( current ) {
self.todos.push( new Todo( current ) );
self.current( '' );
}
};
// remove a single todo
self.remove = function( todo ) {
self.todos.remove( todo );
};
// remove all completed todos
self.removeCompleted = function() {
self.todos.remove(function( todo ) {
return todo.completed();
});
};
// edit an item
self.editItem = function( item ) {
item.editing( true );
};
// stop editing an item. Remove the item, if it is now empty
self.stopEditing = function( item ) {
item.editing( false );
if ( !item.title().trim() ) {
self.remove( item );
}
};
// count of all completed todos
self.completedCount = ko.computed(function() {
return ko.utils.arrayFilter( self.todos(), function(todo) {
return todo.completed();
} ).length;
});
// count of todos that are not complete
self.remainingCount = ko.computed(function() {
return self.todos().length - self.completedCount();
});
// writeable computed observable to handle marking all complete/incomplete
self.allCompleted = ko.computed({
//always return true/false based on the done flag of all todos
read: function() {
return !self.remainingCount();
},
// set all todos to the written value (true/false)
write: function( newValue ) {
ko.utils.arrayForEach(self.todos(), function( todo ) {
// set even if value is the same, as subscribers are not notified in that case
todo.completed( newValue );
});
}
});
// helper function to keep expressions out of markup
self.getLabel = function( count ) {
return ko.utils.unwrapObservable( count ) === 1 ? 'item' : 'items';
};
// internal computed observable that fires whenever anything changes in our todos
ko.computed(function() {
// store a clean copy to local storage, which also creates a dependency on the observableArray and all observables in each item
localStorage.setItem( g.localStorageItem, ko.toJSON( self.todos ) );
}).extend({
throttle: 500
}); // save at most twice per second
};
return ViewModel;
'knockout',
'config/global',
'models/Todo'
], function (ko, g, Todo) {
'use strict';
// our main view model
var ViewModel = function (todos) {
var self = this;
// map array of passed in todos to an observableArray of Todo objects
self.todos = ko.observableArray(ko.utils.arrayMap(todos, function (todo) {
return new Todo(todo.title, todo.completed);
}));
// store the new todo value being entered
self.current = ko.observable();
// add a new todo, when enter key is pressed
self.add = function () {
var current = self.current().trim();
if (current) {
self.todos.push(new Todo(current));
self.current('');
}
};
// remove a single todo
self.remove = function (todo) {
self.todos.remove(todo);
};
// remove all completed todos
self.removeCompleted = function () {
self.todos.remove(function (todo) {
return todo.completed();
});
};
// edit an item
self.editItem = function (item) {
item.editing(true);
};
// stop editing an item. Remove the item, if it is now empty
self.stopEditing = function (item) {
item.editing(false);
if (!item.title().trim()) {
self.remove(item);
}
};
// count of all completed todos
self.completedCount = ko.computed(function () {
return ko.utils.arrayFilter(self.todos(), function (todo) {
return todo.completed();
}).length;
});
// count of todos that are not complete
self.remainingCount = ko.computed(function () {
return self.todos().length - self.completedCount();
});
// writeable computed observable to handle marking all complete/incomplete
self.allCompleted = ko.computed({
//always return true/false based on the done flag of all todos
read: function () {
return !self.remainingCount();
},
// set all todos to the written value (true/false)
write: function (newValue) {
ko.utils.arrayForEach(self.todos(), function (todo) {
// set even if value is the same, as subscribers are not notified in that case
todo.completed(newValue);
});
}
});
// helper function to keep expressions out of markup
self.getLabel = function (count) {
return ko.utils.unwrapObservable(count) === 1 ? 'item' : 'items';
};
// internal computed observable that fires whenever anything changes in our todos
ko.computed(function () {
// store a clean copy to local storage, which also creates a dependency on the observableArray and all observables in each item
window.localStorage.setItem(g.localStorageItem, ko.toJSON(self.todos));
}).extend({
throttle: 500
}); // save at most twice per second
};
return ViewModel;
});
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