I got the Facebook login/logout functionality to work, but had to do it with this un-elegant code like this:
<script type="javascript">
function loadfb() {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol + '//connect.facebook.net/es_LA/all.js';
document.getElementById('fb-root').appendChild(e);
};
</script>
<body onload="loadfb()">
I plan on putting that Facebook login button on all the pages of the site, so I really don't want to have this function called onload of every page.
Is this function necessary? I don't completely understand what it is for. What is a better way to do this so I can take it out of my onload?
Thanks!
This code is for asynchronous loading of the Facebook JavaScript SDK. What it does is create the tag
<script async scr="https://connect.facebook.net/es_LA/all.js" ></script>
inside the <div id="fb-root"></div> element. While loading the SDK asynchronously is considered better practice, you can leave out this code and manually enter the script tag yourself - eg:
<div id="fb-root"></div>
<script src="http://connect.facebook.net/es_LA/all.js"></script>
<script>
FB.init({
...
});
</script>
Related
I'm development a blog using django and I have included the addthis tool for include the share buttons. I'm including the addthis buttons in the posts detail page. I need to get the facebook shares count for the current blog post deetail. I'm using these steps, but I'm gettin this error in the console: ReferenceError: addthis is not defined.
The addthis code is loaded remotely then, I think that my js is not running because it runs before the addthis script load is complete. How can I fix it?
{% block js %}
<script type="text/javascript"src="//s7.addthis.com/js/300/addthis_widget.js#pubid=fdfs" async="async"></script>
<script src="{% static 'js/blog/blog_list.js' %}"></script>
<script>
$(function () {
addthis.sharecounters.getShareCounts('facebook', function(obj) {
console.log(obj);
});
})
</script>
{% endblock %}
You can wrap your function around window.load like below
$(window).load(function() {
addthis.sharecounters.getShareCounts('facebook', function(obj) {
console.log(obj);
});
})
This will ensure that the code will get executed once entire window is loaded. For further reading read this.
In my play framework app, I have a main.html, which at the very bottom includes this javascript tag:
<script>
$(function() {
// add js here
#{scripts /}
});
</script>
Now I would like to be able to add arbitrary javascript from other templates, which is then collected and added to the function body, so for example in view1.html, I'd like to add the function doCharts() to be called on jQuery's DOMReady:
#{append: 'scripts'}
doCharts();
#{/append}
This should then produce this output:
<script>
$(function() {
// add js here
doCharts();
});
</script>
Is this possible?
Yes this is possible
In your main file, after your script tag put
#{get 'moreScripts' /}
and in your other html files use
#{set 'moreScripts'}
<script type="text/javascript">
// put your script here
</script>
#{/set}
if you want to put another script in the same page you can put a get into the set like this
#{set 'moreScripts'}
#{get 'moreScripts' /}
<script type="text/javascript">
// put your script here
</script>
#{/set}
What is the appropriate way to include a Google AdSense banner in an Ember (Handlebars) template?
Say I have a template for a view that looks like this:
<script type="text/x-handlebars" data-template-name="myPageWithBanner">
<div id="mainContent">
Lorem ipsum main content
</div>
<div id="banner">
//Normally I would insert a script tag here, but that is not possible
</div>
</script>
Do I need to do this from code using pre-compiled templates, or is there a way I am not aware of?
I don't have a Google AdSense account, so I can't test this. But there are several major problems here:
You can't include a <script> tag inside a Handlebars template, not even if you use CDATA.
Google AdSense requires the AdSense JavaScript to appear verbatim in your page, or it's a TOS violation.
According to this StackOverflow answer, AdSense on AJAX sites is poorly supported at the moment.
The Google AdSense crawler won't be able to see any content on your page, so I doubt that ad-targeting is going to work. But see below for some things which might help crawlers.
But I'm going to assume, for the sake of simplicity, that you can discuss TOS issues directly with Google, and I'll just try to solve the technical problems. First, based on this StackOverflow answer, here's one possible solution that allows you to serve up Google's script verbatim:
<script type="text/x-handlebars">
<h1>Ember AdSense</h1>
{{outlet}}
<div id="ads"></div>
</script>
<script type="text/x-handlebars" data-template-name="index">
<p>Hello, world!</p>
</script>
<div id="ads-load" style="display: none">
<!--
Apparently this needs to appear verbatim, exactly as Google gave it to
you, or it's a TOS violation.
-->
<script type="text/javascript"><!--
google_ad_client = "ca-pub-XXXXXXXXXX";
/* Test Ad */
google_ad_slot = "XXXXXX";
google_ad_width = 250;
google_ad_height = 250;
//-->
</script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>
</div>
Then when our main template loads, we use jQuery to move the ads into our application template:
window.App = Ember.Application.create();
// Explicitly declare the view class for our application view.
App.ApplicationView = Ember.View.extend({
// Called once the view is rendered.
didInsertElement: function () {
$('#ads-load').appendTo("#ads").css("display", "block");
}
});
As for allowing the Google crawler to see you content, Google has official advice for AJAX applications, but I don't know whether that works with the AdSense crawler. Alternatively, if you're using pushState to update your displayed URLs, then you need to make sure that each of those URLs can be rendered by your server when requested by a crawler. (The Discourse forum software does exactly this.)
Please let me know if it gets you any closer.
I have built a html page with some internal templates. See url jsfiddle:
http://jsfiddle.net/hoven002/jQTDH/
What is the best method to make the templates external and how?
Regards,
Kenneth
The best method, in my opinion, is to use this plugin: https://github.com/ifandelse/Knockout.js-External-Template-Engine.
It enables a new template engine that will pull templates from external files. It has some configuration options as well to determine where the templates are pulled from.
I've written a function that loads templates, without any dependency but jQuery. You must mark each <script> tags you want to be dynamically loaded with the attribute data-template-src and put there the path of your HTML file. Following is the code and an example.
Warning: since it uses AJAX to load templates, it needs an HTTP server (it won't work locally with file:// protocol)
/main.js
// Loads all the templates defined with the tag data-template-src.
// Returns a promise that fulfills when all the loads are done.
function loadTemplates() {
var templateLoads = [];
$('[data-template-src]').each(function () {
var templateElement = $(this);
var templateUrl = templateElement.attr('data-template-src');
// Load the template into the element and push the promise to do that into the templateLoads array
templateLoads.push(
$.get(templateUrl)
.done(function (data) {
templateElement.html(data);
})
);
});
return $.when.apply($, templateLoads);
}
// When all templates are loaded, apply bindings
loadTemplates().done(function () {
ko.applyBindings({}, document.getElementById("htmlDoc"));
});
/index.html
<html id="htmlDoc">
<body>
<div data-bind="template: { name: 'exampleTemplate' }"></div>
<script type="text/html" id="exampleTemplate" data-template-src="/assets/exampleTemplate.html"></script>
<script src="/jquery.js"></script>
<script src="/knockout.js"></script>
<script src="/main.js"></script>
</body>
</html>
/assets/exampleTemplate.html
<h1>Hello world</h1>
<div data-bind="template: { name: 'exampleSubTemplate' }"></div>
/assets/exampleSubTemplate.html
<h2>How do you do?</h2>
I'm new to developing for Facebook. I'm actually writing an app for a university course.
I followed the tutorials on the developer website, and they originally worked like a charm. I used the example which produced a login with Facebook button, and another page which would retrieve information from the logged in user and display it on the page.
I left it for a couple of weeks to work on other commitments, now this code doesn't work. Whereas before it would list the profile picture, name, email etc. Now it just says undefined. The only thing I could put it down to was that I had been using something which had been depreciated, since I'd now switched over to the timeline for my Facebook account (however why would the original example I used still be the first set of tutorials on the developer website https://developers.facebook.com/docs/guides/web/).
I also went to the Open Graph page on the developer website, they have a tutorial there which just displays a picture of a cookie and then adds the app to your timeline (I'm sure you're all familiar with it). That doesn't work either! It just brings up a blank box which immediately vanishes (doesn't ask me to authorise anything) and doesn't add anything to my timeline.
I've tried looking at my app settings but I can't see anything odd.
Probably you are using some deprecated functions.
First thing to do is to make sure you have an application created on facebook, and that the site URL on the settings of the application is the site that you are writing your application (example: http://locahost/application_name). Also, take note of the application id (you can find all these settings on https://developers.facebook.com/apps/).
Now that you got this, here is working example for extracting information for your user (replace "YOUR_APP_ID" with your application ID:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<link rel="stylesheet" type="text/css" media="screen" href="styles/styles.css" />
<link rel="stylesheet" type="text/css" media="screen" href="styles/default.css" />
<script type="text/javascript" src="js/jquery-ui.min.1.8.js"></script>
<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
<script type='text/javascript' src="js/jquery-ui.min.js"></script>
<script type='text/javascript' src="js/main.js"></script>
<script type='text/javascript' src='js/default.js'></script>
<script language="JavaScript">
function get_feed()
{
FB.api('/me', function(response) {
alert(response.name);
});
}
</script>
</head>
<body>
<div id="fb-root"></div>
<div id="login"></div>
<div id="test"></div>
<div id="stream"></div>
<script src="http://connect.facebook.net/en_US/all.js"></script>
<script>
FB.init({
appId : 'YOUR_APP_ID',
status : true, // check login status
cookie : true, // enable cookies
xfbml : true, // parse XFBML
oauth : true
});
FB.Event.subscribe('auth.authResponseChange', function(response) {
window.location.reload();
});
FB.getLoginStatus(function(response) {
if (response.status == "connected") {
// logged in and connected user, now get the facebook info
get_feed();
document.getElementById('login').innerHTML
='Logout fom Facebook<br/>';
} else {
document.getElementById('login').innerHTML
='<fb:login-button show-faces="true" width="200"'
+ ' max-rows="1" perms="user_about_me, user_likes, friends_likes, read_stream, publish_stream">'
+ '</fb:login-button>';
FB.XFBML.parse();
}
});
</script>
</body>
</html>
Hope it helps.