Waiting for the lazy loading of CSS in AngularJS

I'm currently working on a one-page app that utilizes angular-css-injector to inject CSS upon each "page" change. However, I'm encountering an issue where the page doesn't look great for a brief moment until the CSS loads completely, at which point everything looks as intended. Is there a way for me to delay showing the page until after the CSS has loaded (while displaying a loader in the meantime)?

After looking into it, I realized that there doesn't seem to be a callback available for when the CSS finishes loading.

Loading the CSS in advance isn't an option for me since certain modules may contain conflicting classes, and I don't have the bandwidth to deal with that headache right now.

javascriptangularjs

Answer №1

CSS Resolution

To achieve a seamless transition in your web design, consider implementing a simple CSS solution. Begin by setting the body element to either display:none or opacity:0 in your main CSS file that loads at the start. Then, when Angular CSS is loaded, switch it back to display:block or opacity:1.

For example, within your styles.css (or equivalent) file:

body {
    display:none;
    /* or */
    opacity:0;
}

Answer №2

One effective approach is to utilize SCSS to prevent any overlap issues by writing SCSS code under each component selector.

In the given scenario, it is recommended to create a custom injector for better file loading control. This injector can be customized based on your requirements, such as:

var client = new XMLHttpRequest();
client.open('GET', '/component/style.css');
client.onreadystatechange = function() {
  document.querySelector("style#dynamic").innerHTML = client.responseText;
}
client.send();

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