I have the following angular code:
application.controller('ImageController', function ImageController($scope, ImageService, ngDialog) {
$scope.open = function (image) {
ngDialog.open({
className: 'modal',
plain: false,
scope: scope,
template: 'image'
});
}
};
On page loading, when the url has the parameters source and key:
http://www.google.pt/?source=1&key=sdfd-sd-sf
I would like to call open and pass an image with:
image.source = 1;
image.key = sdfd-sd-sf;
How can I do this?
UPDATE
I tried to use ngroute:
$routeProvider
.when('/:source?/:key?',
{
controller: "ImageController"
}
)
with the following route:
domain.com/?source=ddf&key=23jf-34j
On ImageController I tried to get the parameters source and key using:
var image = { source: $routeParams.source, key: $routeParams.key };
if (image.source != null && image.key != null) {
open(image);
}
But both source and key are undefined. Any idea why?
If you're using ngRoute, you can inject $routeParams into your controller and simply do:
image.source = $routeParams.source;
image.key = $routeParams.key;
Nice egghead video about it: https://thinkster.io/egghead/routeparams-api/
UPDATE
There's no need to specify query parameter names in when (it's only needed when using paths like domain.com/source/123/key/456), so this is wrong:
.when('/:source?/:key?',
It should be just:
.when('/',
While your URL has the hashbang (or html5mode):
domain.com/#/?source=ddf&key=23jf-34j
then this will work just fine:
var image = { source: $routeParams.source, key: $routeParams.key };
Note that if you're not using ng-view the parameters won't be available due to their async nature, so you need to use this watcher in your controller:
$scope.$on('$routeChangeSuccess', function() {
console.log($routeParams);
});
or, if you inject $route instead of $routeParams, you can use:
$scope.$on('$routeChangeSuccess', function() {
console.log($route.current.params);
});
it will return the same object.
UPDATE 2
After a little research, seems like by far the easiest way to do it is to inject $location service, and simply use:
var params = $location.search();
var image = { source: params.source, key: params.key };
Here is a simple example with html5 mode on (will work with your original URL): http://run.plnkr.co/sElZhTrI4JvGc0if/?source=SomeSrc&key=SomeKey
And the full Plunker: http://plnkr.co/edit/Jxol8e7YaghbNScICHqW
I want to create a form for the user to pick the skin he wants among a series.
I provide the factory Config to keep track of his choice thru routes.
The factory provides a way to save the config in cookies thru $scope.$watch('config.skin', function(){}) mechanism in order to preserve his choice thru multiple sessions.
The factory is as follows:
app.factory("Config",function($cookies){
console.log("Factory Config…");
return {
config: {
skin: "Gray"
},
save: function(s) {
console.log("Config.save() "+mydump(s,2));
this.config = s;
$cookies.config = JSON.stringify(this.config);
},
load: function() {
if ($cookies.config) {
try {
this.config = JSON.parse($cookies.config);
console.log("App controller: read config from cookies as: ");
for (var i in this.config) {
console.log ("— "+i+" = "+this.config[i]);
}
} catch(e) {
config = null;
}
}
if (!this.config) {
this.config = {"skin": "Gray"};
console.log("App controller: init config from controler ("+this.config+")");
}
return this;
}
};
});
The Config replaces the $scope.config in the controller.
The skin switching is provided thru a ng-class as follows:
<div ng-controller="myCtrl" ng-class="{'skin{{config.skin}}':true}">
<!-- more html -->
</div>
Currently, though my ng-class is updated by the $scope.config.skin as expected, the class itself is not, though not achieving the execpected overall feature.
Any idea?
I've provided a fiddle that demonstrates the issue: http://jsfiddle.net/stephanedeluca/SeUY7/
Interpolation won't work here. Instead, use:
<div ng-controller="myCtrl" ng-class="'skin' + config.skin">
Working fork of your Fiddle
I was actually looking to get the content of clipboard using angular JS to simulate a copy paste thing.
I created a directive for copy to clipboard which is using the document.execCommand() method.
Directive
(function() {
app.directive('copyToClipboard', function ($window) {
var body = angular.element($window.document.body);
var textarea = angular.element('<textarea/>');
textarea.css({
position: 'fixed',
opacity: '0'
});
function copy(toCopy) {
textarea.val(toCopy);
body.append(textarea);
textarea[0].select();
try {
var successful = document.execCommand('copy');
if (!successful) throw successful;
} catch (err) {
console.log("failed to copy", toCopy);
}
textarea.remove();
}
return {
restrict: 'A',
link: function (scope, element, attrs) {
element.bind('click', function (e) {
copy(attrs.copyToClipboard);
});
}
}
})
}).call(this);
Html
<button copy-to-clipboard="Copy Me!!!!" class="button">COPY</button>
here's a concise version I use -
function copyToClipboard(data) {
angular.element('<textarea/>')
.css({ 'opacity' : '0', 'position' : 'fixed' })
.text(data)
.appendTo(angular.element($window.document.body))
.select()
.each(function() { document.execCommand('copy') })
.remove();
}
BTW, if using Angular to copy to clipboard with a Chrome Packaged App, do the following:
Add "clipboardRead" and "clipboardWrite" to the "permissions" in the manifest.json.
use ng-click in your view to feed the value to the controller $scope, like: data-ng-click="copyUrlToClipboard(file.webContentLink)"
Put a function in your controller like:
$scope.copyUrlToClipboard = function(url) {
var copyFrom = document.createElement("textarea");
copyFrom.textContent = url;
var body = document.getElementsByTagName('body')[0];
body.appendChild(copyFrom);
copyFrom.select();
document.execCommand('copy');
body.removeChild(copyFrom);
this.flashMessage('over5');
}
I had the same issue and I used angular-clipboard feature[1] which uses new Selection API and Clipboard API available in the latest browsers.
First we have to install angular-clipboard lib, i'm using bower.
$ bower install angular-clipboard --save
To import the module use following in html.
<script src="../../bower_components/angular-clipboard/angular-clipboard.js"></script>
To set values to element using $scope in controller
$scope.textToCopy = 'Testing clip board';
Load the clipboard module using,
angular.module('testmodule', ['angular-clipboard']);
This works for Chrome 43+, Firefox 41+, Opera 29+ and IE10+.
Its simple & worked fine.
[1] https://www.npmjs.com/package/angular-clipboard
Thanks,
A completely different approach:
I need to copy & paste text between windows, so I used this to save (copy) the data to local storage. Then, in the other window, I load it out of local storage, using the same key, and I can then 'paste' is as I like.
I'm using Require.js in combination with Angular.js.
Some controllers need huge external dependencies which others don't need, for example, FirstController requires Angular UI Codemirror. That's a extra 135 kb, at least:
require([
"angular",
"angular.ui.codemirror" // requires codemirror itself
], function(angular) {
angular.module("app", [ ..., "ui.codemirror" ]).controller("FirstController", [ ... ]);
});
I don't want to have to include the directive and the Codemirror lib everytime my page loads just to make Angular happy.
That's why I'm right now loading the controller only when the route is hit, like what's done here.
However, when I need something like
define([
"app",
"angular.ui.codemirror"
], function(app) {
// ui-codemirror directive MUST be available to the view of this controller as of now
app.lazy.controller("FirstController", [
"$scope",
function($scope) {
// ...
}
]);
});
How can I tell Angular to inject ui.codemirror module (or any other module) in the app module aswell?
I don't care if it's a hackish way to accomplish this, unless it involves modifying the code of external dependencies.
If it's useful: I'm running Angular 1.2.0.
I have been trying to mix requirejs+Angular for some time now. I published a little project in Github (angular-require-lazy) with my effort so far, since the scope is too large for inline code or fiddles. The project demonstrates the following points:
AngularJS modules are lazy loaded.
Directives can be lazy loaded too.
There is a "module" discovery and metadata mechanism (see my other pet project: require-lazy)
The application is split into bundles automatically (i.e. building with r.js works)
How is it done:
The providers (e.g. $controllerProvider, $compileProvider) are captured from a config function (technique I first saw in angularjs-requirejs-lazy-controllers).
After bootstraping, angular is replaced by our own wrapper that can handle lazy loaded modules.
The injector is captured and provided as a promise.
AMD modules can be converted to Angular modules.
This implementation satisfies your needs: it can lazy-load Angular modules (at least the ng-grid I am using), is definitely hackish :) and does not modify external libraries.
Comments/opinions are more than welcome.
(EDIT) The differentiation of this solution from others is that it does not do dynamic require() calls, thus can be built with r.js (and my require-lazy project). Other than that the ideas are more or less convergent across the various solutions.
Good luck to all!
Attention: use the solution by Nikos Paraskevopoulos, as it's more reliable (I'm using it), and has way more examples.
Okay, I have finally found out how to achieve this with a brief help with this answer.
As I said in my question, this has come to be a very hacky way. It envolves applying each function in the _invokeQueue array of the depended module in the context of the app module.
It's something like this (pay more attention in the moduleExtender function please):
define([ "angular" ], function( angular ) {
// Returns a angular module, searching for its name, if it's a string
function get( name ) {
if ( typeof name === "string" ) {
return angular.module( name );
}
return name;
};
var moduleExtender = function( sourceModule ) {
var modules = Array.prototype.slice.call( arguments );
// Take sourceModule out of the array
modules.shift();
// Parse the source module
sourceModule = get( sourceModule );
if ( !sourceModule._amdDecorated ) {
throw new Error( "Can't extend a module which hasn't been decorated." );
}
// Merge all modules into the source module
modules.forEach(function( module ) {
module = get( module );
module._invokeQueue.reverse().forEach(function( call ) {
// call is in format [ provider, function, args ]
var provider = sourceModule._lazyProviders[ call[ 0 ] ];
// Same as for example $controllerProvider.register("Ctrl", function() { ... })
provider && provider[ call[ 1 ] ].apply( provider, call[ 2 ] );
});
});
};
var moduleDecorator = function( module ) {
module = get( module );
module.extend = moduleExtender.bind( null, module );
// Add config to decorate with lazy providers
module.config([
"$compileProvider",
"$controllerProvider",
"$filterProvider",
"$provide",
function( $compileProvider, $controllerProvider, $filterProvider, $provide ) {
module._lazyProviders = {
$compileProvider: $compileProvider,
$controllerProvider: $controllerProvider,
$filterProvider: $filterProvider,
$provide: $provide
};
module.lazy = {
// ...controller, directive, etc, all functions to define something in angular are here, just like the project mentioned in the question
};
module._amdDecorated = true;
}
]);
};
// Tadaaa, all done!
return {
decorate: moduleDecorator
};
});
After this has been done, I just need, for example, to do this:
app.extend( "ui.codemirror" ); // ui.codemirror module will now be available in my application
app.controller( "FirstController", [ ..., function() { });
The key to this is that any modules your app module depends on also needs to be a lazy loading module as well. This is because the provider and instance caches that angular uses for its $injector service are private and they do not expose a method to register new modules after initialization is completed.
So the 'hacky' way to do this would be to edit each of the modules you wish to lazy load to require a lazy loading module object (In the example you linked, the module is located in the file 'appModules.js'), then edit each of the controller, directive, factory etc calls to use app.lazy.{same call} instead.
After that, you can continue to follow the sample project you've linked to by looking at how app routes are lazily loaded (the 'appRoutes.js' file shows how to do this).
Not too sure if this helps, but good luck.
There is a directive that will do this:
https://github.com/AndyGrom/loadOnDemand
example:
<div load-on-demand="'module_name'"></div>
The problem with existing lazy load techniques is that they do things which I want to do by myself.
For example, using requirejs, I would like to just call:
require(['tinymce', function() {
// here I would like to just have tinymce module loaded and working
});
However it doesn't work in that way. Why? As I understand, AngularJS just marks the module as 'to be loaded in the future', and if, for example, I will wait a bit, it will work - I will be able to use it. So in the function above I would like to call some function like loadPendingModules();
In my project I created simple provider ('lazyLoad') which does exactly this thing and nothing more, so now, if I need to have some module completely loaded, I can do the following:
myApp.controller('myController', ['$scope', 'lazyLoad', function($scope, lazyLoad) {
// ........
$scope.onMyButtonClicked = function() {
require(['tinymce', function() {
lazyLoad.loadModules();
// and here I can work with the modules as they are completely loaded
}]);
};
// ........
});
here is link to the source file (MPL license):
https://github.com/lessmarkup/less-markup/blob/master/LessMarkup/UserInterface/Scripts/Providers/lazyload.js
I am sending you sample code. It is working fine for me. So please check this:
var myapp = angular.module('myapp', ['ngRoute']);
/* Module Creation */
var app = angular.module('app', ['ngRoute']);
app.config(['$routeProvider', '$controllerProvider', function ($routeProvider, $controllerProvider) {
app.register = {
controller: $controllerProvider.register,
//directive: $compileProvider.directive,
//filter: $filterProvider.register,
//factory: $provide.factory,
//service: $provide.service
};
// so I keep a reference from when I ran my module config
function registerController(moduleName, controllerName) {
// Here I cannot get the controller function directly so I
// need to loop through the module's _invokeQueue to get it
var queue = angular.module(moduleName)._invokeQueue;
for (var i = 0; i < queue.length; i++) {
var call = queue[i];
if (call[0] == "$controllerProvider" &&
call[1] == "register" &&
call[2][0] == controllerName) {
app.register.controller(controllerName, call[2][1]);
}
}
}
var tt = {
loadScript:
function (path) {
var result = $.Deferred(),
script = document.createElement("script");
script.async = "async";
script.type = "text/javascript";
script.src = path;
script.onload = script.onreadystatechange = function (_, isAbort) {
if (!script.readyState || /loaded|complete/.test(script.readyState)) {
if (isAbort)
result.reject();
else {
result.resolve();
}
}
};
script.onerror = function () { result.reject(); };
document.querySelector(".shubham").appendChild(script);
return result.promise();
}
}
function stripScripts(s) {
var div = document.querySelector(".shubham");
div.innerHTML = s;
var scripts = div.getElementsByTagName('script');
var i = scripts.length;
while (i--) {
scripts[i].parentNode.removeChild(scripts[i]);
}
return div.innerHTML;
}
function loader(arrayName) {
return {
load: function ($q) {
stripScripts(''); // This Function Remove javascript from Local
var deferred = $q.defer(),
map = arrayName.map(function (obj) {
return tt.loadScript(obj.path)
.then(function () {
registerController(obj.module, obj.controller);
})
});
$q.all(map).then(function (r) {
deferred.resolve();
});
return deferred.promise;
}
};
};
$routeProvider
.when('/first', {
templateUrl: '/Views/foo.html',
resolve: loader([{ controller: 'FirstController', path: '/MyScripts/FirstController.js', module: 'app' },
{ controller: 'SecondController', path: '/MyScripts/SecondController.js', module: 'app' }])
})
.when('/second', {
templateUrl: '/Views/bar.html',
resolve: loader([{ controller: 'SecondController', path: '/MyScripts/SecondController.js', module: 'app' },
{ controller: 'A', path: '/MyScripts/anotherModuleController.js', module: 'myapp' }])
})
.otherwise({
redirectTo: document.location.pathname
});
}])
And in HTML Page:
<body ng-app="app">
<div class="container example">
<!--ng-controller="testController"-->
<h3>Hello</h3>
<table>
<tr>
<td>First Page </td>
<td>Second Page</td>
</tr>
</table>
<div id="ng-view" class="wrapper_inside" ng-view>
</div>
<div class="shubham">
</div>
</div>
This is how I would check internet connection in vanilla javascript:
setInterval(function(){
if(navigator.onLine){
$("body").html("Connected.");
}else{
$("body").html("Not connected.");
}
},1000);
I have angular controllers and modules in my project. Where should I put the code above? It should be executed in global context and not be assigned to a certain controller. Are there some kind of global controllers maybe?
First of all, I advise you to listen to online/offline events.
You can do it this way in AnguarJS:
var app = module('yourApp', []);
app.run(function($window, $rootScope) {
$rootScope.online = navigator.onLine;
$window.addEventListener("offline", function() {
$rootScope.$apply(function() {
$rootScope.online = false;
});
}, false);
$window.addEventListener("online", function() {
$rootScope.$apply(function() {
$rootScope.online = true;
});
}, false);
});
NOTE: I am wrapping changing of root scope's variable in $apply method to notify Angular that something was changed.
After that you can:
In controlller:
$scope.$watch('online', function(newStatus) { ... });
In HTML markup:
<div ng-show="online">You're online</div>
<div ng-hide="online">You're offline</div>
Here is a working Plunker: http://plnkr.co/edit/Q3LkiI7Cj4RWBNRLEJUA?p=preview
Other solution could be to broadcast online/offline event. But in this case you need to initialize current status upon loading and then subscribe to event.
It's definitely not as nice, but you could just try an AJAX request to your web server; it'll either succeed or time out.
Also, the HubSpot/offline project looks really good.
Your options:
addEventListener on the window, document, or document.body.
setting the .ononline or .onoffline properties on document or
document.body to a JavaScript Function object.
specifying ononline="..." or onoffline="..." attributes on the tag in
the HTML markup
I will demonstrate the easiest.
In you controller
document.body.onoffline = function() {
alert('You are offline now');
$scope.connection = 'offline'
}
document.body.ononline = function() {
alert('You are online again');
$scope.connection = 'online'
}
Check $scope.connection variable before you try to send requests around.
For Angular 2+ you can use ng-speed-test:
Just install:
npm install ng-speed-test --save
Inject into your module:
import { SpeedTestModule } from 'ng-speed-test';
#NgModule({
...
imports: [
SpeedTestModule,
...
],
...
})
export class AppModule {}
Use service to get speed:
import {SpeedTestService} from 'ng-speed-test';
#Injectable()
export class TechCheckService {
constructor(
private speedTestService:SpeedTestService
) {
this.speedTestService.getMbps().subscribe(
(speed) => {
console.log('Your speed is ' + speed);
}
);
}
}