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Last active December 18, 2015 17:59
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AngularJS 1.1.5 + Google Closure Library (just a little) + Closure Compiler (obviously) experiment
Raw
index.html
<html ng-app="ng-demo-app">
<head>
<title>AngularJS simple app demo</title>
</head>
<body ng-controller="MainCtrl">
<input type="text" ng-model="name" ng-required>
<div>{{name}}</div>
<div ng-controller="ChildCtrl">
<input type="text" ng-model="salut">
<div>{{salutation}}</div>
</div>
<p current-time="{{timeFormat}}"></p>
<p>format:
<select ng-model="timeFormat" ng-options="o for o in timeOpts"></select>
</p>
<script src="/angular.min.js"></script>
<script src="ng-demo-app.min.js"></script>
</body>
</html>
Raw
ng-demo-app.min.js
(function(){ 'use strict';function b(a) {
a && (this.a = a, this.a.name = "alex")
}
b.$inject = ["$scope"];
b.prototype.getName = function() {
return(this.a.name || "anonymous")[0].toUpperCase() + (this.a.name || "anonymous").slice(1)
};
function c(a) {
b.call(this);
this.d = this.d.bind(this);
a && (this.a = a, a = function() {
return[this.a.name, this.a.salut]
}.bind(this), this.a.$watch(a, this.d, !0))
}
(function() {
function a() {
}
a.prototype = b.prototype;
c.l = b.prototype;
c.prototype = new a
})();
c.$inject = ["$scope"];
c.prototype.d = function() {
this.a.salutation = (this.a.salut || "hello")[0].toUpperCase() + (this.a.salut || "hello").slice(1) + ", " + this.getName() + "!"
};
function d(a, e) {
this.$timeout = a;
this.i = e;
this.timeFormat = "medium";
this.link = this.link.bind(this);
this.b = this.b.bind(this);
this.e = this.e.bind(this)
}
d.prototype.c = "currentTime";
d.prototype.h = "medium short fullDate longDate mediumDate shortDate mediumTime shortTime".split(" ");
d.prototype.f = "medium";
function f(a, e) {
return{link:(new d(a, e)).link}
}
f.$inject = ["$timeout", "dateFilter"];
d.prototype.link = function(a, e, h) {
this.scope = a;
this.j = e;
this.g = h;
this.g.$observe(this.c, this.e);
this.b()
};
d.prototype.e = function() {
this.timeFormat = this.g[this.c] || this.f;
this.b()
};
d.prototype.b = function() {
this.$timeout.cancel(this.k);
var a = this.i(new Date, this.timeFormat);
this.j.html("Local time: " + a);
this.k = this.$timeout(this.b, 1E3)
};
function g(a) {
a.timeOpts = d.prototype.h;
a.timeFormat = d.prototype.f
}
g.$inject = ["$rootScope"];
angular.module("ng-demo-app", []).controller("MainCtrl", b).controller("ChildCtrl", c).directive(d.prototype.c, f).run(g);
}).call(window)
Raw
ng-demo-app.src.js
// Compile with:
//
// java -jar $COMPILER_JAR \
// --define=goog.DEBUG=false \
// --warning_level=VERBOSE \
// --summary_detail_level=3 \
// --compilation_level=ADVANCED_OPTIMIZATIONS \
// --language_in ECMASCRIPT5_STRICT --angular_pass --formatting PRETTY_PRINT \
// --externs ~/src/closure/compiler/contrib/externs/angular.js \
// --js $CLOSURE_LIB/closure/goog/base.js \
// --js ng-demo-app.src.js --output_wrapper '(function(){ %output% }).call(window)' \
// > ng-demo-app.min.js
/**
* @fileoverview AngularJS simple app demo
*/
goog.provide('demos.ng.simple.MainCtrl');
goog.provide('demos.ng.simple.ChildCtrl');
/**
* Main controller
* @param {angular.Scope=} $scope
* @constructor
* @ngInject
*/
demos.ng.simple.MainCtrl = function($scope) {
if ($scope) {
this.$scope = $scope;
/**
* @type {string}
* @expose
*/
this.$scope.name = 'alex';
}
}
demos.ng.simple.MainCtrl.prototype.getName = function() {
return titleize(this.$scope.name || 'anonymous');
}
/**
* Child controller
* @param {angular.Scope=} $scope
* @constructor
* @extends {demos.ng.simple.MainCtrl}
* @ngInject
*/
demos.ng.simple.ChildCtrl = function($scope) {
goog.base(this);
this.onScopeChange = this.onScopeChange.bind(this);
/**
* @type {string}
* @expose
*/
this.$scope.salut;
/**
* @type {string}
* @expose
*/
this.$scope.salutation;
if ($scope) {
this.$scope = $scope;
var watcher = (function(){
return [this.$scope.name, this.$scope.salut]
}).bind(this);
this.$scope.$watch(watcher, this.onScopeChange, true);
}
}
goog.inherits(demos.ng.simple.ChildCtrl, demos.ng.simple.MainCtrl);
/**
* Callback for when name or salut scope values change.
* Updates salutation scope value.
*/
demos.ng.simple.ChildCtrl.prototype.onScopeChange = function() {
this.$scope.salutation = this.getSalutation();
}
/**
* Returns a "hello, name" salutation using name and salut from the scope.
*/
demos.ng.simple.ChildCtrl.prototype.getSalutation = function() {
var salut = this.$scope.salut || 'hello';
return titleize(salut) + ', ' + this.getName() + '!';
}
/**
* A directive that displays current local time.
* @constructor
*/
demos.ng.simple.TimeDirective = function($timeout, dateFilter) {
this.$timeout = $timeout;
this.dateFilter = dateFilter;
/** @type {string} */
this.timeFormat = 'medium';
/** @type {angular.$q.Promise} */
this.timerPromise;
this.link = this.link.bind(this);
this.updateTime = this.updateTime.bind(this);
this.onTimeFormatChange = this.onTimeFormatChange.bind(this);
/** @type {angular.Scope} */
this.scope;
/** @type {angular.JQLite} */
this.elem;
/** @type {angular.Attributes} */
this.attrs;
}
/** @const */
demos.ng.simple.TimeDirective.prototype.DIR_NAME = 'currentTime';
/** @const */
demos.ng.simple.TimeDirective.prototype.TIME_OPTS = [
'medium', 'short', 'fullDate', 'longDate', 'mediumDate', 'shortDate',
'mediumTime', 'shortTime'
]
/** @const */
demos.ng.simple.TimeDirective.prototype.DEFAULT_TIME_FORMAT = 'medium';
/**
* TimeDirective factory.
* @return {Object}
* @ngInject
*/
demos.ng.simple.TimeDirective.factory = function($timeout, dateFilter) {
var dir = new demos.ng.simple.TimeDirective($timeout, dateFilter);
return {
link: dir.link
}
}
/**
* Linking function.
* @param {angular.Scope} scope
* @param {angular.JQLite} elem
* @param {angular.Attributes} attrs
*/
demos.ng.simple.TimeDirective.prototype.link = function(scope, elem, attrs) {
this.scope = scope;
this.elem = elem;
this.attrs = attrs;
this.attrs.$observe(this.DIR_NAME, this.onTimeFormatChange);
this.updateTime();
}
/**
* Watcher callback for when a user selects a new time format.
* @param {*} val
*/
demos.ng.simple.TimeDirective.prototype.onTimeFormatChange = function(val) {
this.timeFormat = this.attrs[this.DIR_NAME] || this.DEFAULT_TIME_FORMAT;
this.updateTime();
}
/**
* Updates element with the current time each second.
*/
demos.ng.simple.TimeDirective.prototype.updateTime = function() {
this.$timeout.cancel(this.timerPromise);
var now = new Date();
var formatted = this.dateFilter(now, this.timeFormat);
this.elem.html('Local time: ' + formatted);
this.timerPromise = this.$timeout(this.updateTime, 1000);
}
// ----------------------------------------------------------------------------
// the app
/**
* Runs only once at startup time
* @param {angular.Scope} $rootScope
* @ngInject
*/
function onAppStartup($rootScope) {
/**
* Time format options for select box
* @type {Array.<string>}
* @expose
*/
$rootScope.timeOpts =
demos.ng.simple.TimeDirective.prototype.TIME_OPTS;
/**
* @type {string}
* @expose
*/
$rootScope.timeFormat =
demos.ng.simple.TimeDirective.prototype.DEFAULT_TIME_FORMAT;
}
/** @type {angular.Module} */
var app = angular.module('ng-demo-app', []).
controller('MainCtrl', demos.ng.simple.MainCtrl).
controller('ChildCtrl', demos.ng.simple.ChildCtrl).
directive(demos.ng.simple.TimeDirective.prototype.DIR_NAME,
demos.ng.simple.TimeDirective.factory).
run(onAppStartup);
// ----------------------------------------------------------------------------
// utils
/**
* Changes first letter to the upper case
* @param {string} str
* @return {string}
*/
function titleize(str) {
if (!str) return str;
return str[0].toUpperCase() + str.slice(1);
}
@tschiela
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Thanks for the code snippet. I think this approach increase the maintainability and testability. We only have one problem: If we use a directive multiple times on a site. Directive.factory will only be called once. So all directives on sites share the same Directive object. Do you have an idea whats going wrong here?

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