SSOwat/portal/assets/themes/default/custom_portal.js

/*
===============================================================================
 This JS file may be used to customize the YunoHost user portal *and* also
 will be loaded in all app pages if the app nginx's conf does include the
 appropriate snippet.

 You can monkeypatch init_portal (loading of the user portal) and
 init_portal_button_and_overlay (loading of the button and overlay...) to do
 custom stuff
===============================================================================
*/

var app_tile_colors = ['redbg','purpledarkbg','darkbluebg','orangebg','greenbg', 'yellowbg','lightpinkbg','pinkbg','turquoisebg','lightbluebg', 'bluebg'];

function set_app_tile_style(el)
{
    // Select a color value from the App label
    randomColorNumber = parseInt(el.textContent, 36) % app_tile_colors.length;
    // Add color class.
    el.classList.add(app_tile_colors[randomColorNumber]);
}

// Monkeypatch init_portal to customize the app tile style
init_portal_original = init_portal;
init_portal = function()
{
    init_portal_original();
    Array.each(document.getElementsByClassName("app-tile"), set_app_tile_style);
}

/*
 * Monkey patching example to do custom stuff when loading inside an app
 *
init_portal_button_and_overlay_original = init_portal_button_and_overlay;
init_portal_button_and_overlay = function()
{
    init_portal_button_and_overlay_original();
    // Custom stuff to do when loading inside an app
}
*/