A guide on updating CSS content dynamically within ExtJS

In my resource folder, I have a CSS file that contains some values which I need to change or add based on certain conditions. However, I'm struggling to figure out how to achieve this.

Here is an example of the code:

triggers: {
        clear: {
            cls: 'Clear-Value',
            hidden:true,
            handler: function(){
                //some code
            }
        }
    },

The CSS for 'clear-value' looks like this:

.Clear-Value:before {
    background-color:white !important;  }

Now, I want to apply some changes in certain conditions, such as adding padding or something else.

I have been attempting to do this in the following way:

beforerender: function (cmp, eOpts) {
        debugger;
        var isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
        if(isFirefox){
            this.triggers.clear.cls // Here I am getting Clear-Value
        }
    },

While I am able to retrieve my class, I need assistance with editing the CSS. Can someone help me resolve this issue?

Thank you.

Answer №1

To style elements specifically for Firefox, you can create a new CSS class and add the necessary styles to it. Then, you can add this class to the component's class list only if the browser being used is Firefox.

Here's an example:

beforerender: function (cmp, eOpts) {
        var isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
        if(isFirefox){
            cmp.addCls('firefox-fix');
        }
},

.firefox-fix { padding-top :7px !important; }

You can add your custom CSS for Firefox in the firefox-fix CSS class. I hope this solution is helpful.

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