Monday, January 29, 2018

Use Font APEX and Font Awesome Simultaneously

APEX 5.0 gave us the ability to include the Font Awesome library in our applications. In APEX 5.1, Font APEX was added the the list of icon library. 

Taken from the Universal Theme Sample Application:
Font APEX is an all new icon library designed to complement Universal Theme. It was designed as a replacement for Font Awesome, the web's leading icon library, and therefore contains almost all of the Font Awesome icons, re-drawn on a 16x16 grid as line-icons, to match the aesthetic we wanted. We wanted to make it a seamless switch to go from Font Awesome to Font APEX, and therefore use the same "fa" prefix for the icons, making it easier than ever to move to entirely new icon library.
To include either Font Awesome or Font APEX in our application, we need to go under the application's Shared Components, then under Themes, select the theme and under the Icons section, we can select the library that we want to include.

What if we would, for some reason, like to include the two libraries and use some icons from one and some icons from the other.

Unfortunately, the library attribute only enables us to select one of them.

On top of that, since the two libraries are using the same "fa" prefix, we can't simply include both files.

On the other hand, Font Awesome includes the LESS and Sass files so that we can customize and build the library ourselves.

What we'll do

The idea is to include the Font APEX library using the built-in attributes. We'll then need to customize Font Awesome so that it uses a different prefix, build it and include that custom version into our application.

Building our customized Font Awesome

First, we'll need to head over to and download the library.
Once extracted, we get 4 folders:
  • css
  • fonts
  • less 
  • scss
Looking at either the LESS or Sass folder we'll see the different files required to build the library. You can choose whichever one you're most familiar with.

For what we're trying to achieve, we can focus specifically on the "variables" and the "font-awesome" files.

The variables file allows us to replace the "fa-css-prefix" variable.
By default, it's set to "fa", but let's change it to something different like "fawe".

Then, we can build the customized version of the library using the "font-awesome" file.

You can build LESS and Sass files with most text editors. There are also many desktop applications that are able to compile LESS and Sass.

Once our customized Font Awesome is built, we need to upload it to our application (either in the Static Files or on your Web Server).

Using Font APEX and Font Awesome

First, we'll need to include our custom Font Awesome library. We can add it under the Shared Components by going into the User Interface Attributes and then selecting the Desktop interface. Under the Cascading Style Sheets Section, we can add the references to our file.

Something like this:

Using Font APEX will be just as usual. Use the corresponding "fa" class as seen on
<i class="fa fa-cog" aria-hidden="true"></i>
<i class="fa fa-trash-o" aria-hidden="true"></i>
<i class="fa fa-bars" aria-hidden="true"></i>
<i class="fa fa-envelope-o" aria-hidden="true"></i>
<i class="fa fa-key" aria-hidden="true"></i>
<i class="fa fa-shopping-cart" aria-hidden="true"></i>
<i class="fa fa-battery-half" aria-hidden="true"></i>

In order to use our customized Font Awesome, we will need to use our custom class prefix. In our case: "fawe".
<i class="fawe fawe-cog" aria-hidden="true"></i>
<i class="fawe fawe-trash-o" aria-hidden="true"></i>
<i class="fawe fawe-bars" aria-hidden="true"></i>
<i class="fawe fawe-envelope-o" aria-hidden="true"></i>
<i class="fawe fawe-key" aria-hidden="true"></i>
<i class="fawe fawe-shopping-cart" aria-hidden="true"></i>
<i class="fawe fawe-battery-half" aria-hidden="true"></i>
You'll then be able to use both at the same time, like this:

You can have a look at it in action in my Demo Application

You can also get the custom Font Awesome library: here


Wednesday, January 17, 2018

Custom Confirm Dialog Button Labels

Some time ago, someone on the Slack channel asked a question about the APEX confirm dialog. The question was if it was possible to change the labels of the confirm dialog buttons from "Cancel/Ok" to "No/Yes".

If we look at the JavaScript APIs documentation we can see that there are three different ways that we can display a confirmation dialog:
  • apex.confirm
  • apex.message.confirm
The confirm function from the page namespace is different from the one in the confirm namespace. They both render the same confirmation dialog though.

apex.confirm: Alias for the function. Displays a confirmation dialog showing a message (pMessage) and OK and Cancel buttons. Depending on the user's choice, submits the page setting the request value to pRequest, or does not submit the page.

apex.message.confirm: Displays a confirmation dialog showing a message (pMessage), and OK and Cancel buttons. The callback function passed as the pCallback parameter is called when the dialog is closed, and passes true if OK is pressed and false otherwise.

The following JavaScript code:
apex.message.confirm( "Are you sure?", function( okPressed ) {
    console.log(okPressed ? 'Ok' : 'Cancel');

Would display this dialog:

Now, back to the original question. What if we would like to change those button labels.

If we have a look at the JavaScript code of the apex.message.confirm function, we can see that the labels are based on some apex.lang messages (APEX.DIALOG.OK and APEX.DIALOG.CANCEL) and that there is no built-in way to change the labels.


What we can do is change the values (using the JavaScript API of the apex.lang namespace) of the two messages and then call the confirm function. We should also revert the changes to the messages after that so that everything remains as it was initially.

Ok, so let's create a wrapper function on apex.message.confirm (the same also works for  and add two parameters for the button labels.

The function could look like this:
function customConfirm( pMessage, pCallback, pOkLabel, pCancelLabel ){
    var l_original_messages = {"APEX.DIALOG.OK":     apex.lang.getMessage("APEX.DIALOG.OK"),
                               "APEX.DIALOG.CANCEL": apex.lang.getMessage("APEX.DIALOG.CANCEL")};

    //change the button labels messages
    apex.lang.addMessages({"APEX.DIALOG.OK":     pOkLabel});
    apex.lang.addMessages({"APEX.DIALOG.CANCEL": pCancelLabel});

    //show the confirm dialog
    apex.message.confirm(pMessage, pCallback);

    //changes the button labels messages back to their original values
    apex.lang.addMessages({"APEX.DIALOG.OK":     l_original_messages["APEX.DIALOG.OK"]});
    apex.lang.addMessages({"APEX.DIALOG.CANCEL": l_original_messages["APEX.DIALOG.CANCEL"]});

Then, calling our function:
customConfirm( "Are you sure?", function( okPressed ) {
    console.log(okPressed ? 'Ok' : 'Cancel');
}, "Yes", "No");

Would result in this:

or anything you want, like this:

You can have a look at it in action in my Demo Application