ssBootstrap4

A Bootstrap 4 / HTML5 Boilerplate sticky footer theme for SilverStripe 4. Uses Sass for CSS and Bower to upgrade libraries.

Aims

to be able to upgrade Bootstrap and other javascript libraries to the latest version using Bower
to use the Sass for the generation of CSS (including customisations)
to minimise bloat by commenting out Bootstrap's javascript and Sass files

Instructions

Download and copy the bs4 folder, under themes, into your themes folder
Set the theme to 'bs4' in your themes.yml file
Open app/PageController.php and add

    use SilverStripe\View\Requirements;
    ...
    Requirements::css("public/css/main.css");

    Requirements::combine_files(
        'combine.js',
        [
            'thirdparty/bower_components/jquery/dist/jquery.js',
            'thirdparty/bower_components/popper.js/dist/umd/popper.min.js',
            'thirdparty/bower_components/bootstrap/js/dist/alert.js',
            'thirdparty/bower_components/bootstrap/js/dist/button.js',
            'thirdparty/bower_components/bootstrap/js/dist/carousel.js',
            'thirdparty/bower_components/bootstrap/js/dist/collapse.js',
            'thirdparty/bower_components/bootstrap/js/dist/dropdown.js',
            'thirdparty/bower_components/bootstrap/js/dist/modal.js',
            'thirdparty/bower_components/tether/dist/js/tether.js',
            'thirdparty/bower_components/bootstrap/js/dist/tooltip.js', // requires tether
            'thirdparty/bower_components/bootstrap/js/dist/popover.js', // requires tooltip
            'thirdparty/bower_components/bootstrap/js/dist/scrollspy.js',
            'thirdparty/bower_components/bootstrap/js/dist/tab.js',
            'thirdparty/bower_components/bootstrap/js/dist/toast.js',
            'thirdparty/bower_components/bootstrap/js/dist/util.js'
        ]
    );

At the command line cd to /public/thirdparty/ and bower install bootstrap tether popper.js jquery --save
Run /dev/build.
Optional

Favicon/icon: upload your icon through http://realfavicongenerator.net/ and copy the generated icons to your project root.

Requirements

Use software to convert Sass into CSS. Gulp example below includes browser-sync for page reloading.

// npm install gulp gulp-sass gulp-sourcemaps gulp-if gulp-autoprefixer browser-sync --save-dev

const { gulp, watch, series, parallel, src, dest } = require('gulp');
const sass = require('gulp-sass');
const sourcemaps = require("gulp-sourcemaps");
const gulpif = require('gulp-if');
const autoprefixer = require('gulp-autoprefixer');

// Browser Sync (https://www.browsersync.io/docs/gulp)
const browserSync = require('/usr/local/lib/node_modules/browser-sync').create();

/**
 * Static Server + watching scss/html files
 */
function serve() {

	// Serve files from the root of this project
	// https://www.browsersync.io/docs/options
	browserSync.init({
		proxy: PROXY_URL,
		files: [
			// Patterns for static files to watch.
			// We're watching js and php files within mysite
			// and SilverStripe template files within themes
            "app/**/*.*",
            "public/css/*.css",
            "public/javascript/*.js",
			"themes/bs4/**/*.**"
		],
		notify: false,
		browser: "google chrome",
		port: 3003,
        open: "local",
        online: false
	});

    watch("./themes/bs4/scss/*.scss", sassTask);
	watch("./themes/bs4/templates/**/*.ss").on('change', browserSync.reload);
    watch("./app/src/**/*.php").on('change', browserSync.reload);
	watch("./public/javascript/dist/*.js").on('change', browserSync.reload);
};

/**
 * [sassTask description]
 * @return {function} [description]
 */
function sassTask() {
	return src(["./themes/bs4/scss/main.scss"])
		.pipe(gulpif(!isLive, sourcemaps.init()))
		.pipe(sass().on('error', sass.logError))
		.pipe(autoprefixer({
            browsers: [
                "IE >= 11",
                "Edge >= 16",
                "chrome >= 49",
                "firefox >= 58",
                "safari >= 11",
                "ios_saf >= 10.3",
                "samsung >= 4",
                "and_chr >= 64",
                "and_uc >= 11.8"
            ]
        }))
		.pipe(gulpif(!isLive, sourcemaps.write()))
		.pipe(dest("./public/css"))
		.pipe(browserSync.stream());
};

exports.sass = series(sassTask);
exports.serve = series(sassTask, serve);

Structure of the theme's Sass files

Bootstrap's base variables are overridden by custom.scss.
File main.scss adds additional customisations

Useful Pattern

A pattern that can be used is to copy Bootstrap's style, in a new class, and customise. Example below.

   .current {
       @extend .active;
   }

Changelog

Upgraded Bootstrap to 4.4
SS 4.1 & Bootstrap 4.1.1
First release with bootstrap#v4.0.0-alpha.5

License

MIT

AntonyThorpe / ssBootstrap4