I am using the standard f:ajax component in a couple of my pages, and I would like to have this component not automatically import the jsf.js?ln=javax.faces JavaScript file so that I can load it myself in a copy that I just save along with my other static resources in my app.
Is there a way to disable the automatic include of this JavaScript file, and am I going to be missing out anything if I serve it myself?
Thanks.
Related
I have created a custom XBL component that includes very little markup. It primarily consists of CSS, JavaScript and a <div>. The JavaScript then writes the markup to the DOM, inside the <div>. Its CSS specifies styles for a lot of specific element IDs. This works just fine in Form Runner, but not with the Server Side Embedding API.
The Server Side Embedding API appears to be rewriting the CSS file. It prefixes all the CSS selectors for specific IDs with o0. For example #MultiMousePosition-cwm is changed to #o0MultiMousePosition-cwm. This might work fine if the markup of the elements were included in the XBL component. Then it could be rewritten. But since the markup is generated by JavaScript after the page is loaded, this doesn't happen.
Is the rewrite of CSS and element IDs done in case the API is used to include multiple forms in the same page?
Is there a way to prevent the CSS from being rewritten? Or is there some other way to deal with this problem?
I tried to use <xxbl:global> but it looks like that won't work for CSS resources.
The JavaScript is a complex library created by another developer and rewriting it to avoid this issue would take a significant amount of work, if it is possible.
The rewrite of ids is done to prevent id conflicts in the resulting HTML page. That can include supporting multiple forms, but also possible conflicts with other content on the page.
Currently there is no way to disable rewriting. It wouldn't be hard to add as a configuration property, possibly on the XBL components (though some things would need to be rewritten on some not, which might make the configuration more difficult), or globally, for users who know for sure they won't have id conflicts.
I need your help on below.
I have JSF2.0 application which runs on WAS8.5. I want to separate the static and dynamic contents as we want to use WAS server only for dynamic contents and IHS to server static contents for my application. My current architecture and design as follows:
Marked file serving flag as false in ibm-web-ext.xml file (IBM config file to say whether WAS to be served static content or Not).
We’ve used core JSF2.0 tages (h:outputStylesheet, h:outputScript and h:graphicImage) and also traditional html tags some places (link, script and img) to load static contents.
My understanding/Observation is,
1. When we load static contents using JSF2.0 components (styles using h:outputStylesheet component, java scripts using h:outputScript and images using h:graphicImage), all static contents will be served by WAS server as FacesServlet is responsible for reading the component and loading the resources accordingly. According to the JSF2.0 guidelines&standard, we should use JSF tags to load the resources like js, css and images.
2. When we load static contents using html tags, all the static contents served by webserver ie IHS
Now my question is,
My application is internet channel application where we want to serve the possible as quickly as possible. Technically, I want to use Core JSF tags wherever possible and use the WAS server to serve only dynamic contents to reduce the load.
Please advice me options to meet my requirement.
Thanks,
Nanjundan Chinnasamy
We have made the following code changes to achieve our requirement.
To server all images by IHS,
Use native JSF2.0 tag with value attribute like below.
This will generate the html source like below
We used the traditional html tags (used in JSF1.X) versions to load css and java script files like below
If we use h:outputScript and h:outputStylesheet tags available in JSF2.0, we have a name attribute which marked as mandatory. We unable to make it static reference using value attribute alone. We don’t have much documentation at MyFaces site to give references to you. Mean time, you can have a look the following:
https://myfaces.apache.org/core20/myfaces-impl/tagdoc/h_outputScript.html
https://myfaces.apache.org/core20/myfaces-impl/tagdoc/h_outputStylesheet.html
If you any other suggestion/comments, please do let me know. We will revert you with an update.
Thanks,
Nanjundan Chinnasamy
I tried mixing polymer web component w/dart and Foundation CSS framework and so far things simple things are working like button, grid, menu. I guess if i run into an issue, I just need to port the javascript I need to dart. Anyone try this or thinking of trying this?
This was trick to get CSS to leak into component.
class ClickCounter ... {
...
bool get applyAuthorStyles => true;
...
http://i.stack.imgur.com/oNoGR.png
Yes I try this too.
The first thing I tried was create one style file for each component and use the sass #extends to make each component style, my goal was to abstract the zurb, so if I want change the theme, or css framework I just need change the sass file.
But zurb-foundation depends on a base file that have to be include, I can't create one file just for buttons, because de buttons in foundation depend on variables seted in the main file, this generate a huge file with redundant css for each component.
The second thing I tried was warp the basic components, like button, lets say a
<x-button></x-button>
Then in my sass file I include the zurb button file, and make x-button #extends .button or #include .button that make buttons and x-button with the same look. This work for basic elements.
The other way is to applyAuthorStyles and let the css leak
I'm not sure what is the best way, because each approach has its pitfalls.
Why I wrap basic components? To have common behavior and API. For example: enable and disable components, in a form. All my basic components in polymer (x-button, x-input, etc) extends from my framework class, in this framework class I have the common behavior enable and disable, so I can progamattic enable and disable components with the same API.
This is a slow work in proggress, more for fun, and I stop working on this because I need to spend more time creating applications and not creating frameworks. Unfortunately there is no good component framework for Dart as in Javascript like ExtJs and Dojo.
But the Idea was make a component set (with common behavior) and use sass frameworks to the visual effect, maybe abstract the css framework in a way it can be plug and change the look and feel of the application, and that is not easy because some components have specific html markup
I am struggling to get some performance in my MVC application.I am loading a partial page (popup) which is taking hardly 500ms. But each time the popup loads it also downloads 2 jQuery files as well.
is it possible to use the jQuery from cache or from parent page?
I have attached the image in red which shows 2 additional request to server.
In order to improve the performance you can try with the following approaches:
see if your application server supports GZip and configure the application/server to return the responses always archived in Gzip
Use minified version of JQuery
there are also Packing libraries where you can pack all the imported resources, such as CSS files and JS files, and the browser will do only 1 request per resource type. For instance, in Java we have a library called packtag.
In general, I recommend you using Google Chrome browser and its performance analyzer. It will give you good hints.
In the Bundle config use this code
BundleTable.EnableOptimizations = true;
and also indclude both files in single bundle.
Does the popup use an iframe or does it's content just get added to the DOM of the current page?
If it gets added to the current page you could try just adding the script references to the parent page instead. It might not always be the best idea if the parent page has no need for those two files, but if the parent page also uses the jQuery validation then the popup will be able to use the parent's reference to the script file.
For an iframe I'd suggest looking at Gzip and minification to make the scripts load faster.
I am getting ready to code a number of HTML helpers for UI elements in an ASP.NET MVC 3 project. I expect many of the helpers to depend on code that is located in external javascript libraries. These could be custom javascript libraries that I write, or they could reference 3rd party libraries like jQuery and jQueryUI. For example, I might write HTML.RichM.DataPicker(...) that would require the page to have jQuery and jQueryUI referenced and some code executed in the document ready function. Getting code into the document ready function is pretty straightforward I guess -- I could simply inject a new script block into the output with the contents of the function, even though that would mean I might have a page peppered with document ready functions all over.
The other part of this is making sure that the jQuery and jQuery UI libraries (in my example) are referenced and included. Is there an "MVC way" to add the code references to the view page or the layout/master if they are not already there, or must I instruct users of my HTML helpers that they need to add references manually for any required javascript files? Of course, I could just instruct them to include all possible external library references in the master or layout page, but that seems like overkill. In ASP.NET Web Forms, for example, I might have used RegisterClientStartupScript or RegisterStartupScript to do this from my custom control.
Thanks for any suggestions!
I think the easiest way is to include the dependant scripts in the header, that's maybe not what you want to do, but I think it's the easiest way.
I suggest you using a tool like SquishIt to bundle your JS files together, that way, you will not have to load like 20 js files, it will be more efficient and cleaner.