grav-plugin-bootstrapper/bootstrapper.php at develop · funilrys/grav-plugin-bootstrapper · GitHub

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<?php
namespace Grav\Plugin;

use \Grav\Common\Plugin;
use \Grav\Common\Grav;
use \Grav\Common\Page\Page;

class BootstrapperPlugin extends Plugin
{
    /**
     * @return array
     */
    public static function getSubscribedEvents()
    {
        return [
            'onThemeInitialized' => ['onThemeInitialized', 0]
        ];
    }

    /**
     * Initialize configuration
     */
    public function onThemeInitialized()
    {
        if ($this->isAdmin()) {
            return;
        }

        $load_events = false;

        // if not always_load see if the theme expects to load bootstrap plugin
        if (!$this->config->get('plugins.bootstrapper.always_load')) {
            $theme = $this->grav['theme'];
            if (isset($theme->load_bootstrapper_plugin) && $theme->load_bootstrapper_plugin) {
                $load_events = true;
            }
        } else {
            $load_events = true;
        }

        if ($load_events) {
            $this->enable([
                'onTwigSiteVariables' => ['onTwigSiteVariables', 0]
            ]);
        }
    }

    /**
     * if enabled on this page, load the JS + CSS and set the selectors.
     */
    public function onTwigSiteVariables()
    {
        $config = $this->config->get('plugins.bootstrapper');
        $mode = $config['mode'] == 'production' ? '.min' : '';

        $bootstrap_bits = [];
        $currentVersion = '3.3.7';

        if ($config['use_cdn']) {
            if ($config['load_core_css']) {
                $bootstrap_bits[] = "https://maxcdn.bootstrapcdn.com/bootstrap/{$currentVersion}/css/bootstrap{$mode}.css";
            }
            if ($config['load_theme_css']) {
                $bootstrap_bits[] = "https://maxcdn.bootstrapcdn.com/bootstrap/{$currentVersion}/css/bootstrap-theme{$mode}.css";
            }
            if ($config['load_core_js']) {
                $bootstrap_bits[] = "https://maxcdn.bootstrapcdn.com/bootstrap/{$currentVersion}/js/bootstrap{$mode}.js";
            }
        } else {
            if ($config['load_core_css']) {
                $bootstrap_bits[] = "plugin://bootstrapper/css/bootstrap{$mode}.css";
            }
            if ($config['load_theme_css']) {
                $bootstrap_bits[] = "plugin://bootstrapper/css/bootstrap-theme{$mode}.css";
            }
            if ($config['load_core_js']) {
                $bootstrap_bits[] = "plugin://bootstrapper/js/bootstrap{$mode}.js";
            }
        }

        $assets = $this->grav['assets'];
        $assets->registerCollection('bootstrap', $bootstrap_bits);
        $assets->add('bootstrap', 100);
    }
}