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architecture-examples/knockoutjs/index.html
View file @ ae2b72ae
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Knockout.js • TodoMVC</title>
<link rel="stylesheet" href="../../assets/base.css">
<!--[if IE]>
<script src="../../assets/ie.js"></script>
<![endif]-->
</head>
<body>
<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>
</header>
<section id="main" data-bind="visible: todos().length">
<input id="toggle-all" type="checkbox" data-bind="checked: allCompleted">
<label for="toggle-all">Mark all as complete</label>
<ul id="todo-list" data-bind="foreach: filteredTodos">
<li data-bind="css: { completed: completed, editing: editing }">
<div class="view" data-bind="event: { dblclick: $root.editItem }">
<input class="toggle" type="checkbox" data-bind="checked: completed">
<label data-bind="text: title"></label>
<button class="destroy" data-bind="click: $root.remove"></button>
</div>
<input class="edit" data-bind="value: title, valueUpdate: 'afterkeydown', enterKey: $root.stopEditing, selectAndFocus: editing, event: { blur: $root.stopEditing }" >
</li>
</ul>
</section>
<footer id="footer" data-bind="visible: completedCount() || remainingCount()">
<span id="todo-count">
<strong data-bind="text: remainingCount">1</strong>
<span data-bind="text: getLabel( remainingCount )"></span> left
</span>
<ul id="filters">
<li>
<a data-bind="css: { selected: showMode() == 'all' }" href="#/all">All</a>
</li>
<li>
<a data-bind="css: { selected: showMode() == 'active' }" href="#/active">Active</a>
</li>
<li>
<a data-bind="css: { selected: showMode() == 'completed' }" href="#/completed">Completed</a>
</li>
</ul>
<button id="clear-completed" data-bind="visible: completedCount, click: removeCompleted">Clear completed (<span data-bind="text: completedCount"></span>)</button>
</footer>
</section>
<footer id="info">
<span data-bind="visible: todos().length">Double-click to edit a todo.</span>
<p>Original Knockout version from <a href="https://github.com/ashish01/knockoutjs-todos">Ashish Sharma</a></p>
<p>Rewritten to use Knockout 2.0 and standard template by <a href="http://knockmeout.net">Ryan Niemeyer</a></p>
<p>Patches/fixes for cross-browser compat: <a href="http://twitter.com/addyosmani">Addy Osmani</a></p>
</footer>
<script src="../../assets/base.js"></script>
<script src="js/lib/knockout-2.0.0.js"></script>
<!--Crossroad.js Begin -->
<script src="js/lib/signals.js"></script>
<script src="js/lib/crossroads.js"></script>
<script src="js/lib/route.js"></script>
<script src="js/lib/pattern_lexer.js"></script>
<script src="js/lib/intro.js"></script>
<!--Crossroad.js End -->
<script src="js/app.js"></script>
</body>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
<title>Knockout.js • TodoMVC</title>
<link href="../../assets/base.css" rel="stylesheet">
<!--[if IE]>
<script src="../../assets/ie.js"></script>
<![endif]-->
</head>
<body>
<section id="todoapp">
<header id="header">
<h1>todos</h1>
<input id="new-todo" autofocus data-bind="value: current, valueUpdate: 'afterkeydown', enterKey: add" placeholder="What needs to be done?" type="text">
</header>
<section id="main" data-bind="visible: todos().length">
<input id="toggle-all" data-bind="checked: allCompleted" type="checkbox">
<label for="toggle-all">Mark all as complete</label>
<ul id="todo-list" data-bind="foreach: filteredTodos">
<li data-bind="css: { completed: completed, editing: editing }">
<div class="view" data-bind="event: { dblclick: $root.editItem }">
<input class="toggle" data-bind="checked: completed" type="checkbox">
<label data-bind="text: title"></label>
<button class="destroy" data-bind="click: $root.remove"></button>
</div>
<input class="edit" data-bind="value: title, valueUpdate: 'afterkeydown', enterKey: $root.stopEditing, selectAndFocus: editing, event: { blur: $root.stopEditing }">
</li>
</ul>
</section>
<footer id="footer" data-bind="visible: completedCount() || remainingCount()">
<span id="todo-count">
<strong data-bind="text: remainingCount">1</strong>
<span data-bind="text: getLabel( remainingCount )"></span> left
</span>
<ul id="filters">
<li>
<a data-bind="css: { selected: showMode() == 'all' }" href="#/all">All</a>
</li>
<li>
<a data-bind="css: { selected: showMode() == 'active' }" href="#/active">Active</a>
</li>
<li>
<a data-bind="css: { selected: showMode() == 'completed' }" href="#/completed">Completed</a>
</li>
</ul>
<button id="clear-completed" data-bind="visible: completedCount, click: removeCompleted">Clear completed (<span data-bind="text: completedCount"></span>)</button>
</footer>
</section>
<footer id="info">
<span data-bind="visible: todos().length">Double-click to edit a todo.</span>
<p>Original Knockout version from <a href="https://github.com/ashish01/knockoutjs-todos">Ashish Sharma</a></p>
<p>Rewritten to use Knockout 2.0 and standard template by <a href="http://knockmeout.net">Ryan Niemeyer</a></p>
<p>Patches/fixes for cross-browser compat: <a href="http://twitter.com/addyosmani">Addy Osmani</a></p>
</footer>
<script src="../../assets/base.js"></script>
<script src="js/lib/knockout-2.0.0.js"></script>
<!--Crossroad.js Begin -->
<script src="js/lib/signals.js"></script>
<script src="js/lib/crossroads.js"></script>
<script src="js/lib/route.js"></script>
<script src="js/lib/pattern_lexer.js"></script>
<script src="js/lib/intro.js"></script>
<!--Crossroad.js End -->
<script src="js/app.js"></script>
</body>
</html>
\ No newline at end of file
architecture-examples/knockoutjs/js/app.js
View file @ ae2b72ae
(function() {
'use strict';
var ENTER_KEY = 13;
// trim polyfill
if ( !String.prototype.trim ) {
String.prototype.trim = function() {
return this.replace( /^\s+|\s+$/g, '' );
};
}
// 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;
// wrap the handler with a check for the enter key
wrappedHandler = function( data, event ) {
if ( event.keyCode === 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
};
};
// 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.select();
} );
},
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 );
}
};
// 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 );
};
// 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();
self.showMode = ko.observable();
self.filteredTodos = ko.computed(function(){
switch(self.showMode()){
case 'active':
return self.todos().filter(function(todo){ return !todo.completed(); });
case 'completed':
return self.todos().filter(function(todo){ return todo.completed(); });
default:
return self.todos();
}
});
// 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( 'todos-knockout', ko.toJSON( self.todos ) );
}).extend({
throttle: 500
}); // save at most twice per second
};
// check local storage for todos
var todos = ko.utils.parseJson( localStorage.getItem( 'todos-knockout' ) );
// bind a new instance of our view model to the page
var viewModel = new ViewModel(todos || [])
ko.applyBindings(viewModel);
//setup crossroads
crossroads.addRoute('all', function() { viewModel.showMode('all'); });
crossroads.addRoute('active', function() { viewModel.showMode('active'); });
crossroads.addRoute('completed', function() { viewModel.showMode('completed'); });
window.onhashchange = function() {
crossroads.parse(location.hash.replace("#", ""));
};
crossroads.parse(location.hash.replace("#", ""));
})();
(function() {
'use strict';
var ENTER_KEY = 13;
// trim polyfill
if(!String.prototype.trim) {
String.prototype.trim = function() {
return this.replace(/^\s+|\s+$/g, '');
};
}
// 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;
// wrap the handler with a check for the enter key
wrappedHandler = function(data, event) {
if(event.keyCode === 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
};
};
// 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.select();
});
},
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);
}
};
// 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);
};
// 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();
self.showMode = ko.observable();
self.filteredTodos = ko.computed(function() {
switch(self.showMode()) {
case 'active':
return self.todos().filter(function(todo) { return !todo.completed(); });
case 'completed':
return self.todos().filter(function(todo) { return todo.completed(); });
default:
return self.todos();
}
});
// 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('todos-knockout', ko.toJSON(self.todos));
}).extend({
throttle: 500
}); // save at most twice per second
};
// check local storage for todos
var todos = ko.utils.parseJson(localStorage.getItem('todos-knockout'));
// bind a new instance of our view model to the page
var viewModel = new ViewModel(todos || [])
ko.applyBindings(viewModel);
//setup crossroads
crossroads.addRoute('all', function() { viewModel.showMode('all'); });
crossroads.addRoute('active', function() { viewModel.showMode('active'); });
crossroads.addRoute('completed', function() { viewModel.showMode('completed'); });
window.onhashchange = function() {
crossroads.parse(location.hash.replace("#", ""));
};
crossroads.parse(location.hash.replace("#", ""));
})();
\ No newline at end of file
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