evolvethemes-preloadr
v1.0.0
Published
JavaScript library to detect when a given set of elements has fully loaded.
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Preloadr
Preloadr is a JavaScript library that allows you attach a number of elements to a loading queue, and fire and event only when all of them have been declared as "completed".
For example, when you're loading a web page, you may want to add some sort of preloading functionality, by adding a class to the <body> element of the page, only when, say, webfonts have loaded, and images in the top portion of the page are ready to be displayed.
Installation
Here's what you need to do to include the library in your project:
NPM
If you're using NPM and a tool such as Webpack, simply download the package with the following command:
npm install evolvethemes-preloadr --saveStandard way
Download the minified script from the dist folder in this repository (the master branch holds the latest release, while the dev branch is for development purposes).
Usage
Elements that need to be preloaded must be registered using the init function of the Preloadr object.
var queue = [
"fonts",
"images"
];
window.Preloadr.init( queue );The above code essentially tells the Preloadr object that we need to wait for loading confirmation from two elements, before we can declare the loading of the page as concluded.
After the registration, we then proceed add the logic that will bring all the elements to completion. When an element has fully loaded, you can pass the information to the Preloadr object:
window.Preloadr.complete( "fonts" );where "fonts" is the name of the module.
When a single element has loaded, the html element of the page will emit a evolvethemes-preloadr-element-$element-loaded event.
When all elements in the queue have loaded, the html element of the page will emit a evolvethemes-preloadr-loaded event.
What's Evolve Themes
At Evolve we're specialized in the creation of top notch products based on WordPress, and under the Evolve Themes brand we regularly publish and sell themes and plugins.