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Commit ae2b72ae authored by Alberto Monteiro's avatar Alberto Monteiro
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architecture-examples/knockoutjs/index.html
View file @ ae2b72ae
<!doctype html> <!DOCTYPE html>
<html lang="en"> <html lang="en">
<head> <head>
<meta charset="utf-8"> <meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
<title>Knockout.js • TodoMVC</title> <title>Knockout.js • TodoMVC</title>
<link rel="stylesheet" href="../../assets/base.css"> <link href="../../assets/base.css" rel="stylesheet">
<!--[if IE]> <!--[if IE]>
<script src="../../assets/ie.js"></script> <script src="../../assets/ie.js"></script>
<![endif]--> <![endif]-->
</head> </head>
<body> <body>
<section id="todoapp"> <section id="todoapp">
<header id="header"> <header id="header">
<h1>todos</h1> <h1>todos</h1>
<input id="new-todo" type="text" data-bind="value: current, valueUpdate: 'afterkeydown', enterKey: add" <input id="new-todo" autofocus data-bind="value: current, valueUpdate: 'afterkeydown', enterKey: add" placeholder="What needs to be done?" type="text">
placeholder="What needs to be done?" autofocus>
</header> </header>
<section id="main" data-bind="visible: todos().length"> <section id="main" data-bind="visible: todos().length">
<input id="toggle-all" type="checkbox" data-bind="checked: allCompleted"> <input id="toggle-all" data-bind="checked: allCompleted" type="checkbox">
<label for="toggle-all">Mark all as complete</label> <label for="toggle-all">Mark all as complete</label>
<ul id="todo-list" data-bind="foreach: filteredTodos"> <ul id="todo-list" data-bind="foreach: filteredTodos">
<li data-bind="css: { completed: completed, editing: editing }"> <li data-bind="css: { completed: completed, editing: editing }">
<div class="view" data-bind="event: { dblclick: $root.editItem }"> <div class="view" data-bind="event: { dblclick: $root.editItem }">
<input class="toggle" type="checkbox" data-bind="checked: completed"> <input class="toggle" data-bind="checked: completed" type="checkbox">
<label data-bind="text: title"></label> <label data-bind="text: title"></label>
<button class="destroy" data-bind="click: $root.remove"></button> <button class="destroy" data-bind="click: $root.remove"></button>
</div> </div>
<input class="edit" data-bind="value: title, valueUpdate: 'afterkeydown', enterKey: $root.stopEditing, selectAndFocus: editing, event: { blur: $root.stopEditing }" > <input class="edit" data-bind="value: title, valueUpdate: 'afterkeydown', enterKey: $root.stopEditing, selectAndFocus: editing, event: { blur: $root.stopEditing }">
</li> </li>
</ul> </ul>
</section> </section>
...@@ -65,5 +64,5 @@ ...@@ -65,5 +64,5 @@
<script src="js/lib/intro.js"></script> <script src="js/lib/intro.js"></script>
<!--Crossroad.js End --> <!--Crossroad.js End -->
<script src="js/app.js"></script> <script src="js/app.js"></script>
</body> </body>
</html> </html>
\ No newline at end of file
architecture-examples/knockoutjs/js/app.js
View file @ ae2b72ae
...@@ -3,21 +3,21 @@ ...@@ -3,21 +3,21 @@
var ENTER_KEY = 13; var ENTER_KEY = 13;
// trim polyfill // trim polyfill
if ( !String.prototype.trim ) { if(!String.prototype.trim) {
String.prototype.trim = function() { String.prototype.trim = function() {
return this.replace( /^\s+|\s+$/g, '' ); return this.replace(/^\s+|\s+$/g, '');
}; };
} }
// a custom binding to handle the enter key (could go in a separate library) // a custom binding to handle the enter key (could go in a separate library)
ko.bindingHandlers.enterKey = { ko.bindingHandlers.enterKey = {
init: function( element, valueAccessor, allBindingsAccessor, data ) { init: function(element, valueAccessor, allBindingsAccessor, data) {
var wrappedHandler, newValueAccessor; var wrappedHandler, newValueAccessor;
// wrap the handler with a check for the enter key // wrap the handler with a check for the enter key
wrappedHandler = function( data, event ) { wrappedHandler = function(data, event) {
if ( event.keyCode === ENTER_KEY ) { if(event.keyCode === ENTER_KEY) {
valueAccessor().call( this, data, event ); valueAccessor().call(this, data, event);
} }
}; };
...@@ -29,40 +29,40 @@ ...@@ -29,40 +29,40 @@
}; };
// call the real event binding's init function // call the real event binding's init function
ko.bindingHandlers.event.init( element, newValueAccessor, allBindingsAccessor, data ); ko.bindingHandlers.event.init(element, newValueAccessor, allBindingsAccessor, data);
} }
}; };
// wrapper to hasfocus that also selects text and applies focus async // wrapper to hasfocus that also selects text and applies focus async
ko.bindingHandlers.selectAndFocus = { ko.bindingHandlers.selectAndFocus = {
init: function( element, valueAccessor, allBindingsAccessor ) { init: function(element, valueAccessor, allBindingsAccessor) {
ko.bindingHandlers.hasfocus.init( element, valueAccessor, allBindingsAccessor ); ko.bindingHandlers.hasfocus.init(element, valueAccessor, allBindingsAccessor);
ko.utils.registerEventHandler( element, 'focus', function() { ko.utils.registerEventHandler(element, 'focus', function() {
element.select(); element.select();
} ); });
}, },
update: function( element, valueAccessor ) { update: function(element, valueAccessor) {
ko.utils.unwrapObservable( valueAccessor() ); // for dependency ko.utils.unwrapObservable(valueAccessor()); // for dependency
// ensure that element is visible before trying to focus // ensure that element is visible before trying to focus
setTimeout(function() { setTimeout(function() {
ko.bindingHandlers.hasfocus.update( element, valueAccessor ); ko.bindingHandlers.hasfocus.update(element, valueAccessor);
}, 0 ); }, 0);
} }
}; };
// represent a single todo item // represent a single todo item
var Todo = function( title, completed ) { var Todo = function(title, completed) {
this.title = ko.observable( title ); this.title = ko.observable(title);
this.completed = ko.observable( completed ); this.completed = ko.observable(completed);
this.editing = ko.observable( false ); this.editing = ko.observable(false);
}; };
// our main view model // our main view model
var ViewModel = function( todos ) { var ViewModel = function(todos) {
var self = this; var self = this;
// map array of passed in todos to an observableArray of Todo objects // map array of passed in todos to an observableArray of Todo objects
self.todos = ko.observableArray( ko.utils.arrayMap( todos, function( todo ) { self.todos = ko.observableArray(ko.utils.arrayMap(todos, function(todo) {
return new Todo( todo.title, todo.completed ); return new Todo(todo.title, todo.completed);
})); }));
// store the new todo value being entered // store the new todo value being entered
...@@ -70,12 +70,12 @@ ...@@ -70,12 +70,12 @@
self.showMode = ko.observable(); self.showMode = ko.observable();
self.filteredTodos = ko.computed(function(){ self.filteredTodos = ko.computed(function() {
switch(self.showMode()){ switch(self.showMode()) {
case 'active': case 'active':
return self.todos().filter(function(todo){ return !todo.completed(); }); return self.todos().filter(function(todo) { return !todo.completed(); });
case 'completed': case 'completed':
return self.todos().filter(function(todo){ return todo.completed(); }); return self.todos().filter(function(todo) { return todo.completed(); });
default: default:
return self.todos(); return self.todos();
} }
...@@ -84,42 +84,42 @@ ...@@ -84,42 +84,42 @@
// add a new todo, when enter key is pressed // add a new todo, when enter key is pressed
self.add = function() { self.add = function() {
var current = self.current().trim(); var current = self.current().trim();
if ( current ) { if(current) {
self.todos.push( new Todo( current ) ); self.todos.push(new Todo(current));
self.current( '' ); self.current('');
} }
}; };
// remove a single todo // remove a single todo
self.remove = function( todo ) { self.remove = function(todo) {
self.todos.remove( todo ); self.todos.remove(todo);
}; };
// remove all completed todos // remove all completed todos
self.removeCompleted = function() { self.removeCompleted = function() {
self.todos.remove(function( todo ) { self.todos.remove(function(todo) {
return todo.completed(); return todo.completed();
}); });
}; };
// edit an item // edit an item
self.editItem = function( item ) { self.editItem = function(item) {
item.editing( true ); item.editing(true);
}; };
// stop editing an item. Remove the item, if it is now empty // stop editing an item. Remove the item, if it is now empty
self.stopEditing = function( item ) { self.stopEditing = function(item) {
item.editing( false ); item.editing(false);
if ( !item.title().trim() ) { if(!item.title().trim()) {
self.remove( item ); self.remove(item);
} }
}; };
// count of all completed todos // count of all completed todos
self.completedCount = ko.computed(function() { self.completedCount = ko.computed(function() {
return ko.utils.arrayFilter( self.todos(), function(todo) { return ko.utils.arrayFilter(self.todos(), function(todo) {
return todo.completed(); return todo.completed();
} ).length; }).length;
}); });
// count of todos that are not complete // count of todos that are not complete
...@@ -134,23 +134,23 @@ ...@@ -134,23 +134,23 @@
return !self.remainingCount(); return !self.remainingCount();
}, },
// set all todos to the written value (true/false) // set all todos to the written value (true/false)
write: function( newValue ) { write: function(newValue) {
ko.utils.arrayForEach(self.todos(), function( todo ) { ko.utils.arrayForEach(self.todos(), function(todo) {
// set even if value is the same, as subscribers are not notified in that case // set even if value is the same, as subscribers are not notified in that case
todo.completed( newValue ); todo.completed(newValue);
}); });
} }
}); });
// helper function to keep expressions out of markup // helper function to keep expressions out of markup
self.getLabel = function( count ) { self.getLabel = function(count) {
return ko.utils.unwrapObservable( count ) === 1 ? 'item' : 'items'; return ko.utils.unwrapObservable(count) === 1 ? 'item' : 'items';
}; };
// internal computed observable that fires whenever anything changes in our todos // internal computed observable that fires whenever anything changes in our todos
ko.computed(function() { ko.computed(function() {
// store a clean copy to local storage, which also creates a dependency on the observableArray and all observables in each item // store a clean copy to local storage, which also creates a dependency on the observableArray and all observables in each item
localStorage.setItem( 'todos-knockout', ko.toJSON( self.todos ) ); localStorage.setItem('todos-knockout', ko.toJSON(self.todos));
}).extend({ }).extend({
throttle: 500 throttle: 500
...@@ -158,7 +158,7 @@ ...@@ -158,7 +158,7 @@
}; };
// check local storage for todos // check local storage for todos
var todos = ko.utils.parseJson( localStorage.getItem( 'todos-knockout' ) ); var todos = ko.utils.parseJson(localStorage.getItem('todos-knockout'));
// bind a new instance of our view model to the page // bind a new instance of our view model to the page
var viewModel = new ViewModel(todos || []) var viewModel = new ViewModel(todos || [])
......
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