This is an update of the original blog updated from bootstrap 3 to use bootstrap 4 .The viewer has been removed and replaced with the above gif.
Bootstrap 4 Framework –download here.
PHP 5.6 + download here .
Downloader.php - A PHP Library (A free to use file download library created by Jack Mason )
This is included in the included Download below.
This file contains the visual element of a drop down box to select the file to download.
This file contains the visual download progress bar and button to download the file.
This file is called by the download button and processes the file to download.
This holds all the mime information and allows any type of file to be downloaded.
To show and hide classes, the class “hidden” is no longer for bootstrap 4. This is replaced with class = ”d-none” to perform the same functionality.
Setinterval() calls function progressbar() every ‘100 milliseconds’ set by the var ‘stepdelay’ until completed. This is set to run for the var ‘dcount’ times. The var ’width’ is set to 0 because we require the progressbar to finish at 0.
The function progressbar() determines when the image download and button must become visible.
We use the document.getElementById to change the different messages in the progress bar.
You can download the full code for the project at the end of the blog
Licence is MIT.
Download the code from the GITHUB repository.
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