I am trying to modify the project ngImgCrop (https://github.com/alexk111/ngImgCrop) for allowing crop multiple images in the same page, but I do not know how many images I would need, this is created dynamically. So, I need to associate to the 'image' field of a dynamic value, and at the same time I put this variable in my scope. The problem is that this label is not evaluating the angular code.
<div class="cropArea" id="{{'person'+person.Id}}">
<img-crop image="{{'person'+person.Id}}" result-image="myCroppedImage"></img-crop>
</div>
Even when they have the same code, when the page is loaded the html code shows:
<div class="cropArea" id="person12345">
<img-crop image="{{'person'+person.Id}}" result-image="myCroppedImage"></img-crop>
</div>
In my scope since the beginning the variable $scope.person12345 is created, but It is impossible to make the binding without this part.
What can I do?
Note:
In my init() function I create all the variables:
angular.forEach(persons, function (person, index) {
$scope['person'+person.Id]='';
});
I actually can see the variable $scope.person12345 when the page is loaded. In any case why does the expression worked for the div and not for the img-crop?
Please put your expression as a function which will execute in the Controller. string(appending string) will return by a function like below.
<div class="cropArea" id="{{'person'+person.Id}}">
<img-crop image="getImagePath(person.Id)" result-image="myCroppedImage"></img-crop>
</div>
Controller like below:
$scope.getImagePath = function(id){return 'person'+id+'.png';};
Some how there is no parser available in the directive of image, that's why you need to give parsed expression via a controller.
Related
I'm trying to pass a variable to angularjs from cmsfn. Did anyone managed to do it already?
<div ng-controller="someController">
[#assign currentNode = cmsfn.asJCRNode(content)]
[#assign rootPageNode = cmsfn.root(currentNode, "mgnl:page")!]
<div style="display: none">{{myVar='${rootPageNode}'}}</div>
</div>
In the above code, when i try to use myVar in angular, its value is empty.
So first, reduce your FM code to single line:
[#assign rootPage = cmsfn.root(content, "mgnl:page")!]
This way, what you get back is still ContentMap and not Node which is easier to manipulate in the template.
Second, get the name of the page (if that is what you want):
${rootPage.#name}
You can find list of other special properties of content map at the bottom of this page
Now, last about the angular part, what you have in your template is just angular expression, "print statement" if you will, which will not assign variable. You need to do the assignment using $scope.myVar=... in the someController controller itself. Which means that the .js file itself needs to be freemarker template.
I have a HTML-Document containing moustache expressions that angular-dart evaluates very well:
</head>
<body ng-cloak>
<ctrlTextElements>
<div id="stage">outside: {{ctrlTextElements.test1('three')}}</div>
</ctrlTextElements>
I want to dynamicaly add some HTML with moustache expression like so:
CtrlTextElements.addTextElement(mousePos.x, mousePos.y);
var div = dom.querySelector('#stage');
HttpRequest.getString("../path/text.html").then((r) {
div.children.add(new Element.html(r, validator: new AllowAllValidator()));
});
The content of the added text.html looks like this:
<div>inside: (not evaluated): {{ctrlTextElements.test1('three')}}</div>
That's the result in the browser:
outside: three
inside: (not evaluated):{{ctrlTextElements.test1('three')}}
How can I reevaluate the moustache expressions inside content that has been applied after the page was loaded?
The problem is that you are mixing jQuery like logic with angular logic here : manipulating the dom 'by hand' is rarely a good solution.
The problem here is that your newly added binding has not been compiled by angularjs = it has not been indexed as a directive that should be watched for and updated when scope changes.
Either you try a more angular way, for example using ng-hide or ng-repeat directive to display your content according to the controllers $scope (or another custom directive), or you try to $compile your newly added directive ( but this is bad ) : https://docs.angularjs.org/api/ng/service/$compile .
Maybe try in your controller :
$scope.$compile( div );
Not sure of the syntax though. Maybe you would need to write
<span ng-bind="..."></span>
instead of
{{ ... }}
to make it work.
#Alexhv is right. Sorry for my previous answer. I assumed it is about Polymer. Was already time for bed.
You can find a code example in my answer to this question: setInnerHtml doesn't evaluate Mustache
The pub package bwu_angular (http://pub.dartlang.org/packages/bwu_angular) contains this code as a Decorator (Directive) named bwu-safe-html
I have an app that requires HTML to be pieced together from different APIs. Rather than getting into specifics there, let me just say that we have tried getting away from that many times but in the end the best answer always end up being what we currently have. Hopefully that changes someday but for now it's working great.
Currently, the HTML is parsed together as a string server-side using NodeJS and sent across the wire as complete HTML to be rendered. I'm in the process of adopting AngularJS, and while I'm loving it I am stuck on this issue-- how can I use Angular templating to insert invalid HTML at times?
The server will return three JSON fields: leadingHTML, trailingHTML, and copy. The copy field is always valid HTML, but leadingHTML and trailingHTML can sometimes return invalid HTML. When all three are added together, valid HTML results.
Let me illustrate:
leadingHTML='<figure>';
copy = '<img src="img1.jpg"/><img src="im2.jpg"/><figcaption>I love AngularJS</figcaption>';
trailingHTML='</figure>';
As you can see, if you add those together you will get the valid HTML that is required to be displayed. It's pretty easy to make the fields trustworthy HTML in Angular:
for (i in data.results){
data.results[i].copy=$sce.trustAsHtml(data.results[i].copy);
data.results[i].leadingHTML =$sce.trustAsHtml(data.results[i].leadingHTML );
data.results[i].trailingHTML =$sce.trustAsHtml(data.results[i].trailingHTML );
}
And then render the copy in my view:
<div ng-repeat='i in data.result'>
<p ng-bind-html='i.copy'></p>
</div>
But I need a way that does what this looks like it would do, but the leadingHTML and trailingHTML scope variables get render as strings:
<div ng-repeat='i in data.result'>
{{ i.leadingHTML }}
<p ng-bind-html='i.copy'></p>
{{ i.trailingHTML }}
</div>
Is the best answer here to build the template via javascript? Would that even work?
Are you able to pre-process your data so that you do have valid HTML?
var item;
for (i in data.results){
item = data.results[i];
item.content = $sce.trustAsHtml(item.leadingHTML + item.copy + item.trailingHTML);
}
Then you can just bind to the combined content in the view:
<div ng-repeat='i in data.results'>
<div ng-bind-html='i.content'></div>
</div>
Edit:
Yes, this will allow you to embed expressions in your HTML content.
In fact, you will need to be careful that you aren't opening yourself up to security exploits in the trusted HTML content (see the example at the bottom of the page for the $sce service).
Using $sce.trustAsHtml in this way is roughly equivalent to loading a directive's templateUrl from your site, so the security considerations around that are probably the same. See the "How does it work?" and
"Impact on loading templates".
I have been working with routing and I have seen how I can update the ng-view using routing and a view template.. But the problem I have is that I am doing a REST call and depending what I get back from the response I wish to update part of the DOM with a view template but I don't want to involve routing.
Does anyone know how I can do this? Or any examples would be great
Thanks in advance
Another answer. Based on your description in the comment, it sounds like you wish to display part of the DOM conditionally.
When you want to display part of the DOM conditionally, you have the following choices:
Use an ng-show and ng-hide directive.
Based on what returns from the RESTful call, you can set up a model that will identify the DOM that needs to be displayed. An example:
<div ng-show="status">
This text will be shown only when the status is truthy
</div>
<div ng-hide="status">
This text will be shown only when the status is false.
</div>
Inside your controller, you could then set the status to true or false based on your RESTful calls and based on which part of the DOM you wish to display post RESTful call.
You can use ng-switch directive
While the ng-show and ng-hide directives will display the content of your DOM conditionally, that is anybody could simply open the source file and see the contents for both, ng-switch directive will load the contents only based on which case fulfills the swtich. An example:
<div ng-switch on="status">
<div ng-switch-when="true">
This text will be shown only when the status is truthy.
Else this is completely hidden and cannot be seen even
when looking at the source.
</div>
<div ng-switch-when="false">
This text will be shown only when the status is false.
Else this is completely hidden and cannot be seen even
when looking at the source.
</div>
</div>
The first child div is shown when the status is true else it is not shown at all. The advantage over ng-show or ng-hide is that the DOM will not contain the child elements if the case is not fulfilled.
$location.path() can be used here.
So, in your Parent Controller, you can make the REST call. Once you have the data with you, you can then decide which route to take. The route value goes into the path() function.
As an example, let us say that if your REST call returns with cherries, you need to take the /foo path (which, based on your $routeProvider will load the template associated with that route). You can then write the following:
$location.path('/foo');
and it will loads the /foo path - $routeProvider will then take care of loading the template associated with that path.
Reference: $location
I have a directive which loads content from an external HTML file. Passed into this directive is some scope data which is used in the rendering of that HTML fragment. e.g.
<div class="{{cls}}" data-obj="{{obj}}" data-id="{{id}}">
<!-- remainder of content here -->
</div>
What I would like to do within this directive is to load a further HTML partial within this based on the original scope data passed into the directive. I can't seem to get this to work, but it should be something along the lines of the following:
<div class="{{cls}}" data-obj="{{obj}}" data-id="{{id}}">
<!-- remainder of content here -->
<div ng-include="partials/{{obj}}.html></div>
</div>
Using this, the file doesn't get included, but I don't get any errors either. Can anybody assist me here?
NB: I read this, which is a similar issue, but hasn't helped me.
UPDATE - I noticed in Chrome dev tools that the URL is being resolved as expected, but the file contents are not getting included. I thought from the docs that ng-include loaded and compiled the requested fragment, so I was expecting this to work.
Found a solution in the end, by declaring the following in the directive:
<div ng-include src="view.getView()"></div>
and the following in the directive controller:
$scope.view = {
getView: function() {
return "partials/" + $scope.obj + ".html";
}
};
Works perfectly now!
In comment on the comment of Shane Gadsby: it is not <div ng-include src="'partials/'+{{obj}}+'.html'"></div> but <div ng-include src="'partials/'+obj+'.html'"></div>.
Your comment explains why 'this is what you need to force it from object literals to a string', so everything not in single quotes is handled by the compiler as a scope object.