I am using Chartist JS for my charts in my Angular JS app. The issue is I am seeing this here. There is a JS bin that highlights the issue. The author gives a solution for it. The solution is doing DOM manipulations in Jquery which is easy to do. However with AngularJS the way you manipulate the DOM is via Directives. I have created a plunker here which highlights the same issue in Angular JS but I am confused as to how to put the solution provided by author into my Angular code.
Here is the solution
$('[data-tab]').on('toggled', function (event, tab) {
tab.find('.ct-chart').each(function(i, e) {
e.__chartist__.update();
});
});
Edit: As requested the JSFiddle is updated, so what I am trying to do is. I have three different tabs and three different graphs, whenever I click on them I should see the respective graph. To make the tab behavior possible I have written a basic code using scope and model. which facilitates the changing of tabs. The issue is that the chart is getting created for first or default tab but not for the second and third tab. There is a solution given by the author but I don't know how to implement that in AngualrJS
the jQuery solution that you post is basically finding all the chart references and then doing DOM manipulation and call the update() function.
The key is how to find the chart to update in Angular.
In this case, you can assign a variable when you create a chart. For example:
var chart4 = new Chartist.Bar('#chart4', data1);
var chart5 = new Chartist.Bar('#chart5', data2);
Now you have the reference of the chart. All you have to do is to call update() function to render the chart again.
if (value === "allDrivers") {
$scope.tab = "All";
chart4.update();
}
Here is the working plunker
One thing I like to point out is: right now you need to double click the tab in order to see the chart is being rendered or you resize the browser window. I am still trying to find a way to fix this. But at least this approach gives you an idea how to convert the jQuery solution to Angular solution.
I was able to solve this using angular.element() method. So if you wish you use jquery in your angular code. You have to do this via angular.element method. But make sure to include jquery before angular in your index.html
If jQuery is available, angular.element is an alias for the jQuery
function. If jQuery is not available, angular.element delegates to
Angular's built-in subset of jQuery, called "jQuery lite" or jqLite.
I did not know this. From here it was learning for me. Following advice of #pieterjandesmedt from this post. I was able to do this. For other people who want to learn how this works. I have created a GitHub repo which gives a solution to this issue. The link for problem is given in the question. Hope that helps
Related
I am new to angularjs, trying to create my first directive. I am creating a directive to load Charts.js2.0(beta) into my application.
I have 2 views managed by angular-route, both html view has ng-included a html page that contains only charts-element.
The problem is the first page properly draws the chart, when i go to other view the charts div is loaded but charts is not re-drawn. And now if i go back to first view its blank.
Link to Plunker
What i am doing wrong? Is there any issue with my directive?
Thanks in advance.
There appears to be an issue with the Charts library modifying the existing object on the root scope, and thereby ignoring it forever afterward. I can't really trace down what is doing it, but here's a fix for you: http://plnkr.co/edit/jDQFV62FSeXAQJ6o7jE8
Here is what you had
scope.$watch('config', function(newVal) {
if(angular.isDefined(newVal)) {
if(charts) {
charts.destroy();
}
var ctx = element[0].getContext("2d");
charts = new Chart(ctx, scope.config);
//scope.$emit('create', charts);
}
});
Above, you can see that you're passing scope.config directly into the charts method. That appears to be modifying the data somehow, and since that's passed by reference, you're actually modifying $rootScope.sales.charts. If you copy that object and use it locally like below, you don't have that problem.
Here's how I fixed it.
scope.$watch('config', function(newVal) {
var config = angular.copy(scope.config);
if(angular.isDefined(newVal)) {
if(charts) {
charts.destroy();
}
var ctx = element[0].getContext("2d");
charts = new Chart(ctx, config);
//scope.$emit('create', charts);
}
});
You can see that instead of passing that object directly in, we use angular to make a copy (angular.copy()), and that's the object we pass in.
I think it has relation with the id of the canvas where you are drawing. I've had this problem too amd it was because i was using the same id for the canvas of two graphs in different views. Be sure that those ids are different and that the javasrcipt of each graph is in the controller of each view or in each view itself.
Taking a look at your pluker I see that you are using the same html for the graph and I guess that when angular moves from one of your views to the other thinks that the graph is already drawn. Differentiating two graphs will solve the problem. I don't know of there is any other approach that allows using the same html for the canvas of the graph.
Hope it helps you solve it
I have some problems using Material Design Lite (getmdl.io). I followed the steps showed in the getmdl.io web in order to install it (actually I use bower), but I always have the same problem, when I change the ng-route in my web, some resources don't render properly, I need to reload the page to get it properly rendered, for example.
First I have this:
then when I reload, I get what I want:
What I cant understand is why other resources like google icons or buttons work correctly but the menu button on the nav bar and other resources like this one need to reaload the page in order to render properly.
I try to include the library using the hosted method and bower method.
Any idea what is going on?
i past in my code this function
angular.module('app', ['ngRoute']).
run(function($rootScope, xxxx, xxx){
$rootScope.$on('$viewContentLoaded', function(event, next) {
componentHandler.upgradeAllRegistered();
});
});
It worked perfect! Good luck..
Libraries like MDL work by waiting for the page to load using the DOMContentLoaded event, scanning the page for things like input elements and manipulating them with JavaScript so that they can inject the bits and pieces needed to work with their components. This works fine on static websites, but the DOMContentLoaded event only fires once, so when Angular performs a page transition, the DOM changes without MDL knowing about it.
Material Design Lite has a section in its FAQ about using MDL on dynamic websites:
Material Design Lite will automatically register and render all elements marked with MDL classes upon page load. However in the case where you are creating DOM elements dynamically you need to register new elements using the upgradeElement function. Here is how you can dynamically create the same raised button with ripples shown in the section above:
<div id="container"/>
<script>
var button = document.createElement('button');
var textNode = document.createTextNode('Click Me!');
button.appendChild(textNode);
button.className = 'mdl-button mdl-js-button mdl-js-ripple-effect';
componentHandler.upgradeElement(button);
document.getElementById('container').appendChild(button);
</script>
Of course, this probably isn't terribly easy to do in your case, since you'd have to manually find each new element and call upgradeElement on it.
Usually, instead of doing this sort of event-based DOM manipulation, Angular uses directives to initiate DOM changes. Consider using a library built to interoperate with Angular, instead, such as Angular Material.
I want to have a column chart in my angular app that could be drilled down to a line chart. I think the main problem is to be able to handle click event on each column that I could not find it highchart nor angular-chart. Can you tell me a way to construct such thing?
ZingChart has an Angular directive that works well with your use case. You can use the directive with ZingChart's internal events to bind to just about anything on the chart :
zingchart.node_click = function(p) {
....
}
Demo : http://jsfiddle.net/mschultz/ck84wjce/
Angular Directive: https://github.com/zingchart/ZingChart-AngularJS
Docs : http://www.zingchart.com/docs/api/api-events/
It can also perform drilldowns fairly easily across different types of charts: http://www.zingchart.com/blog/2014/09/02/chart-drilldown-interactive-feature/
If you need any help, feel free to reach out - I work for the ZingChart team!
Check out this page for an example on Angular Drill Down chart using CanvasJS Angular Chart. It also includes angular source code or download angular sample from download page.
Check this StackBlitz for a simple example.
All I am trying to do is include an anchor tag inside the html of a partial that links to an external site. Were this standard html, the code would simply be:
google
As simple as this is, I cannot seem to find a working solution for getting past angular intercepting the route (or perhaps replacing my anchor with the https://docs.angularjs.org/api/ng/directive/a directive unintentionally?).
I have scoured SO and the rest of the web and seen a myriad of solutions for dealing with: links within the same domain, routing within the SPA, routing within a page (ala $anchorScroll) but none of these are my issue exactly.
I suspect it may having something to do with using $sce but I am an Angular n00b and not really sure how to properly use that service. I tried the following in my view controller:
$scope.trustUrl = function(url) {
return $sce.trustAsResourceUrl(url);
}
with the corresponding:
<a ng-href="{{ trustUrl(item) }}">Click me!</a>
(as described here: Binding external URL in angularjs template)
but that did not seem to do the trick (I ended up with just href="{{" in the rendered page).
Using a plain vanilla anchor link like this:
google
also failed to do the trick (even though some online advised that standard href would cause a complete page reload in angular: AngularJS - How can I do a redirect with a full page load?).
I also tried adding the target=_self" attribute but that seemed to have no effect either.
Do I need to write a custom directive as described here?
Conditionally add target="_blank" to links with Angular JS
This all seems way too complicated for such a simple action and I feel like I am missing something obvious in my n00bishness, at least I hope so because this process is feeling very onerous just to link to another url.
Thanks in advance for any solutions, advice, refs or direction.
It turns out that I did in fact have all anchor links in the page bound to an event listener and being overridden. Since that code was fundamental to the way the page worked I did not want to mess with it. Instead I bypassed it by using ng-click to call the new url as follows:
HTML:
<a class="navLinkHcp" href="{{hcpurl}}" title="Habitat Conservation Plan" target="_blank" ng-click="linkModelFunc(hcpurl)">Habitat Conservation Plan</a>
Controller:
$scope.hcpurl = 'http://eahcp.org/index.php/about_eahcp/covered_species';
$scope.linkModelFunc = function (url){
console.log('link model function');
$window.open(url);
}
And voila! Good to go.
Thanks again to KevinB for cluing me in that this was probably the issue.
I really dislike how angular-ui is documented. Sometimes they really don't explain a lot. This is the documentation to sortable-ui: https://github.com/angular-ui/ui-sortable
First, I cannot pass in options.
$scope.sortableOptions = {
cursor:"move"
};
I also changed "move" to "pointer" or "crosshair". Nothing happens.
Second, I need to update the backend by the new order of which the user has sorted. I am not a great javascripter at all (more of a back end developer). The only order-related js function I can find is indexof(). Then it gets very complicated because I need to iterate through all elements and find the new order since the user has rearranged all the elements.
Is there an easier way to get the current order of the list whenever the sortable directive is updated?
I created a demo on plunker (since it allows me to add extra libraries)
http://plnkr.co/edit/uNErHgKL3ohNyFhgFpag?p=preview
Again the cursor part is not working, and I have no idea how to get the order of these items.
I see there are methods on the Sortable UI page...I'm new to angularJS. I just couldn't figure out how to call these methods within AngularJS code.
Seralize method/toArray might not be a good idea..The actual data I'm dealing with does not look like ["one", "two", "three"]. It's more like:
[{"id":"5","article_name":"New Article
Title","article_order":"1","article_author":"Author","article_body":"Start typing your
article here!","is_visible":"1","created_date":"2013-10-27
05:37:38","edit_date":null,"magazineID":"7"},
{"id":"13","article_name":"New Article
Title","article_order":"2","article_author":"Author","article_body":"Start typing your
article here!","is_visible":"1","created_date":"2013-10-27
05:45:10","edit_date":null,"magazineID":"7"}]
If you guys look into this data stream..there is one attribute called article_order. This is the attribute (database column) I am trying to modify...
Read the jQuery UI Sortable docs. There are lots of events you can bind to and methods for serializing the sorted elements. Within the event callbacks you want to use you can make ajax calls to server with updated data
This angular module is simply a wrapper for jQuery UI Sortable.
Create a demo in jsfiddle or plunker that shows the problems you are having
If you use my new sortable Angular.js directive, you would do it like this:
$scope.items = [{"id":"5","article_name":"New Article
Title","article_order":"1","article_author":"Author","article_body":"Start typing
your article here!","is_visible":"1","created_date":"2013-10-27
05:37:38","edit_date":null,"magazineID":"7"},
{"id":"13","article_name":"New Article
Title","article_order":"2","article_author":"Author","article_body":"Start typing
your article here!","is_visible":"1","created_date":"2013-10-27
05:45:10","edit_date":null,"magazineID":"7"}];
$scope.onChange(fromIdx, toIdx) {
$scope.items[fromIdx].article_order = toIdx;
$scope.items[toIdx].article_order = fromIdx;
// OR
// var temp = $scope.items[fromIdx].article_order;
// $scope.items[fromIdx].article_order = $scope.items[toIdx].article_order;
// $scope.items[toIdx].article_order = temp;
}
HTML:
<ul ng-sortable="items"
ng-sortable-on-change="onChange">
<li ng-repeat="item in items" class="sortable-element" ng-style="{backgroundColor: item.color}">
{{item.name}}, {{item.profession}}
</li>
</ul>
See demo + documentation here:
https://github.com/schartier/angular-sortable
https://github.com/schartier/angular-sortable-demo
I guess I got into an issue similar to you. If we subscribe the update callback we don't get the latest order of items. But using the stop event handler helped me. While using angular ui sortable, we get the model updated with the latest order in the stop event handler. You can post this data to backend or wherever you want to store..Hope this helps...:)
You can refer the jquery ui sortable documentation for stop here
http://api.jqueryui.com/sortable/#event-stop