I am building a very simple 5 question multiple choice quiz "game" that just asks 5 simple questions displayed using HTML radio buttons, and a JavaScript function that validates if the user's selection is correct, and iterates a "score" which, when the submit button is clicked, displays "You got X out of X correct." Basically a .js 101 project.
I'm using a Content Management System called Blackbaud Internet Solutions (BBIS). It is proprietary to Blackbaud, and allows the user to build a fully functioning website that integrated with Blackbaud's CRM database. It allows you to build layout using HTML, however in the built-in HTML editor you do not declare any !DOCTYPE or <body> or <head> tags, you just start with your first or whatever, and the system will build out each page using it's native .aspx functionality.
BBIS does have a sophisticated stylesheet section that allows you to create and stack .css, however JavaScript is not handled in the same way.
A web developer that wants to include JavaScript on a page must insert that script by creating what BBIS calls an "Unformatted Text Part." (a "part" is like a widget, or block etc.) The Unformatted Text Part allows you to insert whatever you have between <script> ... and ...</script> in the:
<head>
<body>
at the end of the <body>
Locally on my workstation the .html, .css, and .js files all work together perfectly. And in BBIS, the HTML renders great, the CSS looks good, however, the JavaScript aspect just doesn't work at all. When you click the submit button, the screen flashes and the form's 5 radio buttons just reset to unselected.
Using Chrome's developer tools I can see in the DOM that the CMS (BBIS) brings a whole lot of unnecessary JavaScript to the party. I'm sure that on a page with more elements, these scripts have a perfectly logical function. But this page is literally a white background with nothing but a quiz in the middle of the page. My onSubmit button function has 3-4 other "onSubmit" scripts running on the same page, and I cannot help but think that this is the problem.
In the DOM, I can see that my JavaScript function has been inserted into the <head> tag, because that is where I configured it to load inside of the BBIS "unformatted text part". All the native BBIS "onSubmit scripts" appear in the <body>. Is there a way that I can insert some JavaScript into the <head> that will "take out" those <body> BBIS "onSubmit" scripts?
when you get a blank page maybe you leave the CMS page on submit?
How does your html form look like?
Another thing is, are you using jquery? Most CMS bring their own version of jquery. Try to use jquery in no conflict mode https://api.jquery.com/jquery.noconflict/
Edit the unformatted text part, and select the 'advanced options' button. You can choose to drop your part in the <head> from there.
Related
I'm using a low-code development platform called WaveMaker right now, and it gives you the option to customize the "markup" of the page (HTML, but you can't really edit <head>; the whole thing is kind of weird), the Javascript of the page, particularly with events like onpageload, etc., the style of the page (CSS), and the page's variables (JSON). I'm trying to embed Formstack forms, but every time the Markup section encounters a <script> tag, it deletes everything after the end of the tag. This is what the markup page looks like. I contacted support and they seemed to indicate that this was on purpose. Is there any way to make HTML run script included in-line without saying <script>? PS: I would be able to embed using iFrames, but for some reason the iFrames aren't working on the iPhone test program, even though they're working on the simulator.
What you can do is put it inside an HTML event attribute.
<body onload="/*your JS here*/">
</body>
If that does not work, try attaching onload to another HTML element or try one of the other event handlers (though I believe that they should have taken this into account as well)
How about this :
<body onload="javascript:(function(){
// you can place your code here it should run
alert('ok')
})()">
</body>
In Avatao's Senior Web Security Career Path, there is a hacking task, where you need to insert malicious javascript code - but the <script> is tag filtered (other tags aren't). Aenadon's answer gived me one solution:
<body onload="your JS here"> </body>
After submitting that, I checked the official solution, and I found that:
<img src="x" onerror=alert('xss')>
I have used $.mobile.changepage to do the redirect in my phonegap+jquerymobile projects. However what makes me confused is that I need to put the script of all the pages to the same file index.html. If not, the redirect page can not execute the function in its header.
for example, my index.html seem to be
$(document).bind("deviceready",function(){$.mobile.changepage("test.html");})
then, my device will redirect to test.html which seem to be
$("#btnTest").click(function(){alert("123");})
<button id="btnTest">Test</button>
However, the script will never execute in test.html. Then I put the script to index.html, what I expect to be is done. Whatever, if I put all the script to the same page, the project will become harder and harder to be preserved. Appreciated for your help.
Intro
This article can also be found HERE as a part of my blog.
How jQuery Mobile handles page changes
To understand this situation you need to understand how jQuery Mobile works. It uses ajax to load other pages.
First page is loaded normally. Its HEAD and BODY is loaded into the DOM, and they are there to await other content. When second page is loaded, only its BODY content is loaded into the DOM. To be more precise, even BODY is not fully loaded. Only first div with an attribute data-role="page" will be loaded, everything else is going to be discarded. Even if you have more pages inside a BODY only first one is going to be loaded. This rule only applies to subsequent pages, if you have more pages in an initial HTML all of them will be loaded.
That's why your button is show successfully but click event is not working. Same click event whose parent HEAD was disregarded during the page transition.
Here's an official documentation: http://jquerymobile.com/demos/1.2.0/docs/pages/page-links.html
Unfortunately you are not going to find this described in their documentation. Ether they think this is a common knowledge or they forgot to describe this like my other topics. (jQuery Mobile documentation is big but lacking many things).
Solution 1
In your second page, and every other page, move your SCRIPT tag into the BODY content, like this:
<body>
<div data-role="page">
// And rest of your HTML content
<script>
// Your javascript will go here
</script>
</div>
</body>
This is a quick solution but still an ugly one.
Working example can be found in my other answer here: Pageshow not triggered after changepage
Another working example: Page loaded differently with jQuery-mobile transition
Solution 2
Move all of your javascript into the original first HTML. Collect everything and put it inside a single js file, into a HEAD. Initialize it after jQuery Mobile has been loaded.
<head>
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; minimum-scale=1.0; user-scalable=no; target-densityDpi=device-dpi"/>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.css" />
<script src="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js"></script>
<script src="index.js"></script> // Put your code into a new file
</head>
In the end I will describe why this is a part of a good solution.
Solution 3
Use rel="external" in your buttons and every elements you are using to change page. Because of it ajax is not going to be used for page loading and your jQuery Mobile app will behave like a normal web application. Unfortunately this is not a good solution in your case. Phonegap should never work as a normal web app.
Next
Official documentation, look for a chapter: Linking without Ajax
Realistic solution
Realistic solution would use Solution 2. But unlike solution 2, I would use that same index.js file and initialize it inside a HEAD of every possible other page.
Now you can ask me WHY?
Phonegap like jQuery Mobile is buggy, and sooner or later there's going to be an error and your app will fail (including loaded DOM) if your every js content is inside a single HTML file. DOM could be erased and Phonegap will refresh your current page. If that page don't have javascript that it will not work until it is restarted.
Final words
This problem can be easily fixed with a good page architecture. If anyone is interested I have wrote an ARTICLE about good jQuery Mobile page architecture. In a nut shell I am discussing that knowledge of how jQuery Mobile works is the most important thing you need to know before you can successfully create you first app.
Unlike normal ordinary HTML pages, jQuery Mobile uses ajax technology when navigating between pages. So make sure to import all your JS files and libraries in all your html pages.
If you notice closely you will see that JS files from previous page is taken into consideration when loading the second page. But if you force rrefresh the current page then the js files of the current page will be effective.
So as I said earlier make sure to import the js files in all the html files.
Also no need to call deviceready, use following syntax to call your page specific js functions
$(document).on('pageshow', '#YourPageID', function(){
// Your code goes here
});
Jquery Mobile uses ajax to load a "page". A "page" here is a div with data-role=page. If you load a physical page index.html, you can navigate using changePage to any "page" div inside that page.
However, if you want to load a "page" from other physical page, jQM will only load the first "page" div from that page. What actually happen is you do not change page, jQM just load that particular "page" div using ajax and inject it to your current page.
You have two possible architecture where you put all your "pages" in a html page and navigate from there. Or you can have multiple page architecture. You can always mix this.
To physically change page, you need to add rel=external to your link.
SharePoint is a beast and seems to stomp on everything. Customizing the front-end with javascript has gone well, but now I would like to provide my content owners with more back-end controls. However, any changes made to objects in the WYSIWYG editable area at $(document).ready are immediately reverted by SharePoint.
I imagine this has to do with that "content" not really existing there, but being a copy of hidden input fields. Does anyone know how to get some control of this area? I would love to be able to insert or modify "page content" under the control of scripts, but SharePoint documentation is so terrifyingly sparse.
*EDIT: It appears as though content which is inserted "late" (as in html which is inserted by a click event well after page load) will stick. Anything done at doc.ready or window.load however is rinsed before the area is relinquished to user control.
Sharepoint does a lot of "Sanitizing" of Content entered into some HTML Fields or Content Editor Web Parts sadly. Can you edit the Master Page through SharePoint designer and stick your JavaScript in there?
Also look at ExecuteOrDelayUntilScriptLoaded or _spBodyOnLoadFunctionNames.push()
So i am trying to add a like to my individual posts. So i added this to each of the posts. The posts are generated from database output then assembled with the properly styling in a javascript file.So i added this to the creation mix.
<fb:like href="my_not_so_sweet_website" layout="button_count" show_faces="true" width="200"></fb:like>
Weird part is... None of them show up. THEN i try taking that code that i generated for each post and just copy and paste it to the top of my website, and low and behold A like Button!!!. Any clues? Need more info? Help?
You are using what's called FBML. The like button is rendered on the fly (well, on page load) by a facebook javascript libabry you include on the page- it needs the FBML tags to know what to render.
The problem is that the FB library isn't smart enough to know that you've dynamically added these FBML tags to the DOM.
There is another type of like button that's an iframe, that one should work if you put it in the DOM dynamically. Docs for that are here: http://developers.facebook.com/docs/reference/plugins/like/
-when you enter your info into the widget there will be an option for iframe.
There is also a FBML render function in the FB javascript SDK. Docs are here: http://developers.facebook.com/docs/reference/javascript/fb.xfbml.parse/
I am not a coder but, i am able to get my way around code most of the time. However, i found that this is the best place to ask questions relating to code stuff.
I have been working on a website for a client and i am at 95% - the only problem i have is facebook like-box. i have found several tutorials on the web to modify the like box css, and i have implemented most of the recommendations but, i have no favorable results.
Please - stackoverflow help!
I know jquery/javascript is a very powerful language. And facebook like uses javascript iframe/xfbml.
what code would you use, if you were to modify the like box css elements before loading them .
I say load cos i am loading my like box via ".load" ajax. So, when a user clicks the facebook button jquery loads it.
In short: how would i edit a css file on the fly, and then load the edited version afterwards.
thanks
The key problem that you'll have here is that FB's Like button is loaded inside an iframe - a self-contained HTML document within your page (if you use firebug or webkit inspector to inspect the like button, you'll see it's within <body>, <html>, then <iframe>).
The thing about these self-contained pages is that you can't access or manipulate them from the surrounding document (your page). You can change the 'src' attribute (telling the iframe to load a new page), but you can't apply or change styles on the elements inside the page. This is a security limitation that browsers have.
I know that it is possible to have a custom-styled like button, but I don't think it's done with the iframe method.