Develop Reference

AngularJS passing data to Javascript variables and opposite

I am looking for a solution on passing data from a specific input text field to AngularJS. it may be a Javascript variable too. If the variable is changed from inside a javascript code it is not updating on AngularJS side. If i take the same variable and in the text field add at least one character or modify something i see variable updating and everything working as it should.
I tried something with angular.element(document.getElementById('ControllerElementID')).scope().funct(); but still no luck. When i update at least one field from the keyboard, all text fields that are related to "ng-model="sig.sigBase6422"" are updating properly as it should. If i call this updates through a JavaScript function i see updates only on specific text field and no updates at all on ng-model happening. How to make it updating as simple as possible? Below i will post a small example. I was able to store data from variable to a external file and in AngularJS read it from file and use it. this is way too long, complicated and ridiculous. I am sure there should be a better way.
Thank you!
<script type="text/javascript">
function addtext1() {document.getElementById("myID1").value = "1111111111111111";}
function addtext2() {document.getElementById("myID2").value = "2222222222222222";}
</script>
<div>
<form action="#" name="FORM1">
<TEXTAREA NAME="sigData" ng-model="sig.sigBase6422" ROWS="10" COLS="20">String: </TEXTAREA>
</form><br>
<input type="text" name="myID1" id="myID1" ng-model="sig.sigBase6422" ><br>
<input type="text" name="myID2" id="myID2" ng-model="sig.sigBase6422" ><br>
<p>Value {{sig.sigBase6422}}!</p>
</div>
<!-- test field -->
Add text 1
Add text 2

Indeed if you want to use AngularJS for what it was created, you have to rewrite your code completely using directive or controller. You variables and functions accessible from the view should be attached to the $scope too.
var myApp = angular.module("myApp", []);
myApp.controller("myCtrl", function($scope){
$scope.addtext1 = function () {
$scope.sig.sigBase6422 += "1111111111111111";
};
$scope.addtext2 = function () {
$scope.sig.sigBase6422 += "2222222222222222";
};
$scope.sig = {
sigBase6422: ""
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
<form action="#" name="FORM1">
<TEXTAREA ng-model="sig.sigBase6422" ROWS="10" COLS="20">String: </TEXTAREA>
</form><br/>
<input type="text" name="myID1" id="myID1" ng-model="sig.sigBase6422" /><br/>
<input type="text" name="myID2" id="myID2" ng-model="sig.sigBase6422" /><br/>
<p>Value {{sig.sigBase6422}}!</p>
<!-- test field -->
<button ng-click="addtext1()">Add text 1</button>
<button ng-click="addtext2()">Add text 2</button>
</div>

You seem to have misunderstood how angular works. What you're trying to do is not how angular works. What you're trying to do with native JavaScript can be done with angular. Angular can update dom and Dom updates angular as it's responsible for causing updates.... anyway without getting any deeper. You need to read more on how angular works and try sticl within the bounds of angular instead of mixing.
That being said :
Tigger change on the Dom element after you have updated its value. Or better yet get access to scope variable on the Dom and call a function in angular with the value you're and set they value from inside of a angular.

Use this code while updating the value.
pick the controller first using
var scope = angular.element(document.getElementById('yourControllerElementID')).scope();
scope.<variablename> = <your operation>;
then
scope.$apply();
the remaining thing will be taken care by Angular.

Disabling submit button based on fields added with ng-bind-html

JSFiddle here: http://jsfiddle.net/c6tzj6Lf/4/
I am dynamically creating forms and buttons and want to disable the buttons if the required form inputs are not completed.
HTML:
<div ng-app="choicesApp">
<ng-form name="choicesForm" ng-controller="ChoicesCtrl">
<div ng-bind-html="trustCustom()"></div>
<button ng-repeat="button in buttons" ng-disabled="choicesForm.$invalid">
{{button.text}}
</button>
</ng-form>
</div>
JavaScript:
angular.module('choicesApp', ['ngSanitize'])
.controller('ChoicesCtrl', ['$scope', '$sce', function($scope, $sce) {
$scope.custom = "Required Input: <input required type='text'>";
$scope.trustCustom = function() {
return $sce.trustAsHtml($scope.custom);
};
$scope.buttons = [
{text:'Submit 1'},
{text:'Submit 2'}];
}]);
choicesForm.$invalid is false and does not change when entering text into the input field.
Solution:
I ended up using the angular-bind-html-compile directive from here: https://github.com/incuna/angular-bind-html-compile
Here is the relevant bit of working code:
<ng-form name="choicesForm">
<div ng-if="choices" bind-html-compile="choices"></div>
<button ng-click="submitForm()" ng-disabled="choicesForm.$invalid">
Submit
</button>
</ng-form>
And choices might be a snippit of HTML like this:
<div><strong>What is your sex?</strong></div>
<div>
<input type="radio" name="gender" ng-model="gender" value="female" required>
<label for="female"> Female</label><br>
<input type="radio" name="gender" ng-model="gender" value="male" required>
<label for="male"> Male</label>
</div>

The main problem is that ngBindHtml doesn't compile the html - it inserts the html as it is. You can even inspect the dynamic input and see that it doesn't have the ngModel's CSS classes (ng-pristine, ng-untouched, etc) which is a major red flag.
In your case, the form simply doesn't know that you've added another input or anything has changed for that matter. Its state ($pristine, $valid, etc) isn't determined by its HTML but by the registered NgModelControllers. These controllers are added automatically when an ngModel is linked.
For example this <input required type='text'> won't affect the form's validity, even if it's required, since it doesn't have ngModel assigned to it.
But this <div ng-model="myDiv" required></div> will affect it since it's required and has ngModel assigned to it.
The ngDisabled directive on your buttons works as expected since it depends on the form's $invalid property.
See this fiddle which showcases how ngModel registers its controller. Note that the html containing the dynamic input gets compiled after 750ms just to show how NgModelControllers can be added after FormController has been instantiated.
There are a few solutions in your case:
use a custom directive to bind and compile html - like this one
use ngInclude which does compile the html
use $compile to compile the newly added HTML but this is a bit tricky as you won't know exactly when to perform this action

This is an answer yet imcomplete because i cannot do the code at the moment.
I think your html will be included, not compiled. So the inputs are not bind to angular and are not part of the angular form object.
The only way i see is to use a directive that will compile the passed html and add it to your form. This may be quite tricky though, if you want to go on this way i suggest to edit your question to ask for the said directive.
However i'm not really familiar with $compile so i don't know if it'll work to just add $compile around $sce.trustAsHtml()

You can write a method as ng-disabled does not work with booleans, it works with 'checked' string instead:
So on your controller place a method :
$scope.buttonDisabled = function(invalid){
return invalid ? "checked" : "";
};
And on your view use it on angular expression :
<button ng-repeat="button in buttons" ng-disabled="buttonDisabled(choicesForm.$invalid)">
Here is a working fiddle

Working DEMO
This is the solution you are looking for. You need a custom directive. In my example I have used a directive named compile-template and incorporated it in div element.
<div ng-bind-html="trustCustom()" compile-template></div>
Directive Code:
.directive('compileTemplate', function($compile, $parse){
return {
link: function(scope, element, attr){
var parsed = $parse(attr.ngBindHtml);
function getStringValue() { return (parsed(scope) || '').toString(); }
//Recompile if the template changes
scope.$watch(getStringValue, function() {
$compile(element, null, -9999)(scope); //The -9999 makes it skip directives so that we do not recompile ourselves
});
}
}
});
I found the directive in this fiddle.

I believe what is really happening though due to jsfiddle I'm unable to dissect the actual scopes being created here.
<div ng-app="choicesApp">
<ng-form name="choicesForm" ng-controller="ChoicesCtrl">
<div ng-bind-html="trustCustom()"></div>
<button ng-repeat="button in buttons" ng-disabled="choicesForm.$invalid">
{{button.text}}
</button>
</ng-form>
</div>
The first div is your top level scope, your form is the first child scope. Adding the div using a function creates the dynamically added input field as a child of the first child, a grandchild of the top level scope. Therefore your form is not aware of the elements you're adding dynamically causing only the static field to be required for valid form entry.
A better solution would be to use ng-inclue for additional form fields or if your form isn't to large then simply put them on the page or template you're using.

ng-include changing behavior of angular-ui datepicker

I was using ng-include on a few of my pages, however I had to stop using ng-include because it was breaking the angular-ui datepicker. I opened this Github bug.
I am wondering if anyone else was having issues with directives not functioning the same way when being used as part of a ng-include.
Is there a way to make the datepicker work as expected as part of a ng-include?
Here is a plunker showing how it is broken. http://plnkr.co/edit/AboEJGxAK3Uz76CfpaZ0?p=preview
Here is the html that works when on the view, but does not work when part of a ng include.
<div class="row">
<div class="col-md-2">
<p class="input-group">
<input type="text" class="form-control" datepicker-popup="yyyy/MM/dd" ng-model="something.dt2" is-open="secondCal"
min-date="minDate" name="secondCal" max-date="'2015-06-22'" datepicker-options="dateOptions"
date-disabled="disabled(date, mode)" ng-required="true" close-text="Close"/>
<span class="input-group-btn">
<button type="button" class="btn btn-default" style="line-height: 1.2em" ng-click="open($event, 'secondCal')">
<i class="ss-icon ss-calendar"></i>
</button>
</span>
</p>
</div>
</div>
Here is the JS from the controller.
$scope.open = function ($event, elementOpened) {
$event.preventDefault();
$event.stopPropagation();
$scope[elementOpened] = !$scope[elementOpened];
};
And two ways I was doing ng-include
<div ng-include src="'dist/partials/myPartial.html'"></div>
<div ng-include="'dist/partials/myPartial.html'"></div>
Update
I found that this is because the ng-include directive creates a new scope for each include. This SO post creates a new directive that does the include without creating a new scope. However there seems there "should" be a way to fix it without using a different include.

The datepicker will be unable to open as soon as the is-open is changed by the datepicker directive itself (e.g. click outside to close the datepicker).
This is a common issue regarding the "Prototypal Inheritance" characteristic of scope.
For a complete detail, you could read this: Understanding-Scopes
You could easily solve this by not storing any primitive values directly into $scope, but some object and using dot-notation like this:
<input type="text" class="form-control"
datepicker-popup="yyyy/MM/dd" ng-model="something.dt2"
is-open="model.secondCal"
and in your controller:
app.controller('MainCtrl', function($scope) {
$scope.model = {};
$scope.open = function($event, elementOpened) {
$event.preventDefault();
$event.stopPropagation();
$scope.model[elementOpened] = !$scope.model[elementOpened];
};
});
Example Plunker: http://plnkr.co/edit/dJNIwSz2Uot3McmIMhd4?p=preview

I've created Plunker to debug it but it works fine with your code
http://plnkr.co/edit/nxYCiwRqdWMOkfZoRhGY?p=preview
<body ng-controller="MainCtrl">
<div ng-include="'partial.html'"></div>
</body>
after clarification and further tests i see that calendar with ng-include lose the scope when triggering the change not by scope method, the easy workaround would be as per this plunker
http://plnkr.co/edit/nxYCiwRqdWMOkfZoRhGY?p=preview
Don't remember which one of the angular team said it but if you don't have a dot in your model you are doing it wrong.
a little explanation why it works:
if you do
$scope.valueName = value
it will assign value to the current scope immediately
but if you do
$scope.something.valueName = value
what will happen is that angular will first locate $scope.something, if it doesn't exists on current scope it will look in parent (as long as you don't work in isolated scope)
then when it finds it it will assign value or return something like 'cant find valueName of undefined'
from the angularjs documentation:
https://docs.angularjs.org/api/ng/directive/ngInclude
This directive creates new scope.
This directive executes at priority level 400.

Pass input value to controller on enter or button click

I'm trying to get started learning AngularJS for an Ionic app I'm working on, and I'm having a little trouble understanding AngularJS having had most previous experience on jQuery which focuses on DOM manipulation rather than frameworking.
If I have the following markup:
<label class="item-input-wrapper">
<i class="icon ion-ios7-chatbubble placeholder-icon"></i>
<input type="text" placeholder="Send a message...">
</label>
<button class="button button-clear button-positive">
Send
</button>
How can I pass the value of the input on to the controller when enter or send is clicked? I'm working on a chat app, so I believe that a model approach is needed so that the message thread can be automatically updated but other than that I have no idea.
Could someone help me out or at least point me in the right direction?

There are several ways to pass value to your controller. Here is the simplest example. As Justin said, you should look into angular basics.
HTML:
<div ng-controller="MyCtrl">
<input type="text" ng-model="foo" placeholder="Enter something" />
<input type="button" ng-click="doSomething()" value="Send" ng-disabled="foo == null" />
</div>
JS:
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.foo = null;
$scope.doSomething = function () {
alert("Hello, " + $scope.foo);
}
}
Here is the working fiddle
And I would recommend you to go through this post.

The following markup you posted is the view. What you'll need to do is write a separate JS script called a controller that gets linked to the view. Look into basic Angular tutorials on how to do that and mainly look into how $scope works in Angular.
Your controller will have a function...say:
$scope.foo = function(input) { alert(input); };
From the view, you can pass a value onto the controller with Angular functions such as ng-click.
<a ng-click="foo('this string will be passed in as the text of the alert')">click me</a>

Change text input value with jQuery - Chrome extension

I am trying to change input value in particular web site from chrome extension. In order to do that I am using jQuery in my content script. It works in most of the cases, but I didn't manage to change value of the input when it is part of AngularJS view. I found the same problem when I use let say kendoUI. I am trying to set the value calling $('element').val('value') and then try to call blur and change event, but without any success.
I went through may be 99% of the posts related to this topic, but still can't find working solution.

You just need to Call $scope.apply() in order to let angular know about updating the bindings. This is mainly because by default, angular doesn't know anything about the changes you are making in jQuery.
Below is a sample code, and here is a jsFiddle. Hope this helps.
app.controller('testCtrl', ['$scope', function ($scope) {
$scope.changeValue = function() {
$('#test').val("new Value");
$scope.apply();
}
<div class="form-inline">
<input type="text" id="test" value="test">
<input type="submit" value="submit" ng-click="changeValue()">
</div>