Apache NiFi Fluid Design System

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Apache NiFi Flow Design System

The Apache NiFi Flow Design System is an atomic reusable platform for providing a consistent set of UI/UX components for open source friendly web applications to consume. Users can interact with this design system by running the demo-app locally or by visiting: https://apache.github.io/nifi-fds/.

The demo application serves 2 main purposes

  • As a way for code reviewers to validate code changes as well as each @nifi-fds/core release
  • Provides a working example of how an Angular application should leverage the @nifi-fds/core.

Quick Start

For developers not interested in building the FDS NgModule you can use npm to install the distribution files.

npm install @nifi-fds/core

SystemJS

If your project is using the SystemJS module loader, you will need to add @nifi-fds/core to the configuration:

System.config({
  // existing configuration options
  map: {
    ...,
    '@flow-design-system/core': 'node_modules/@nifi-fds/core/flow-design-system.module.js',
    '@flow-design-system/dialogs': 'node_modules/@nifi-fds/core/dialogs/fds-dialogs.module.js',
    '@flow-design-system/dialog-component': 'node_modules/@nifi-fds/core/dialogs/fds-dialog.component.js',
    '@flow-design-system/dialog-service': 'node_modules/@nifi-fds/core/dialogs/services/dialog.service.js',
    '@flow-design-system/confirm-dialog-component': 'node_modules/@nifi-fds/core/dialogs/confirm-dialog/confirm-dialog.component.js',
    '@flow-design-system/snackbars': 'node_modules/@nifi-fds/core/snackbars/fds-snackbars.module.js',
    '@flow-design-system/snackbar-component': 'node_modules/@nifi-fds/core/snackbars/fds-snackbar.component.js',
    '@flow-design-system/snackbar-service': 'node_modules/@nifi-fds/core/snackbars/services/snackbar.service.js',
    '@flow-design-system/coaster-component': 'node_modules/@nifi-fds/core/snackbars/coaster/coaster.component.js',
    '@flow-design-system/common/storage-service': 'node_modules/@nifi-fds/core/common/services/fds-storage.service.js'
  }
});

Next, import the Apache NiFi Flow Design System NgModule into your angular application.

var fdsCore = require('flow-design-system/core');
AppModule.prototype = {
    constructor: AppModule
};

AppModule.annotations = [
    new ngCore.NgModule({
        imports: [
            fdsCore,
            ...
        ],
        ...
    })
...

Style and Theming

The Apache NiFi Flow Design System comes with a base CSS file node_modules/@nifi-fds/core/common/styles/css/flow-design-system.min.css (includes icons). This file must be included in the head of the HTML document before the theme file.

NiFi FDS is also a themeable UI/UX component platform. To customize the core FDS components create a simple Sass file that defines your palettes and passes them to mixins that output the corresponding styles. A typical theme file will look something like this:

@import '../../node_modules/@nifi-fds/core/common/styles/globalVars';
@import '../../node_modules/@nifi-fds/core/theming/all-theme';

//Change these
$primaryColor: $rose1;
$primaryColorHover: $rose2;
$accentColor: $blue7;
$accentColorHover: $grey4;

// Include the base styles for Angular Material core. We include this here so that you only
// have to load a single css file for Angular Material in your app.
@include mat-core;

// Define the palettes
$fds-base-palette: (50: #89df79, 100: $primaryColorHover, 200: #65d550, 300: #53d03b, 400: #46c32f, 500: $primaryColor, 600: $primaryColor, 700: #89df79, 800: #29701b, 900: #215c16, A100: #9be48d, A200: #ade9a2, A400: #bfedb6, A700: #1a4711, contrast: (50: $black-87-opacity, 100: $black-87-opacity, 200: $black-87-opacity, 300: white, 400: white, 500: $white-87-opacity, 600: $white-87-opacity, 700: $white-87-opacity, 800: $white-87-opacity, 900: $white-87-opacity, A100: $black-87-opacity, A200: white, A400: white, A700: $white-87-opacity));
$fds-accent-palette: (50: #89df79, 100: $accentColorHover, 200: #65d550, 300: #53d03b, 400: #46c32f, 500: $accentColor, 600: $accentColor, 700: #89df79, 800: #29701b, 900: #215c16, A100: #9be48d, A200: #ade9a2, A400: #bfedb6, A700: #1a4711, contrast: (50: $black-87-opacity, 100: $black-87-opacity, 200: $black-87-opacity, 300: white, 400: white, 500: $white-87-opacity, 600: $white-87-opacity, 700: $white-87-opacity, 800: $white-87-opacity, 900: $white-87-opacity, A100: $black-87-opacity, A200: white, A400: white, A700: $white-87-opacity));
$fds-warn-palette: (50: #81410f, 100: #D14A50, 200: #af5814, 300: #c66317, 400: #dd6f19, 500: $warnColor, 600: $warnColor, 700: #eea66e, 800: #f1b485, 900: #f4c29b, A100: #ec9857, A200: #89df79, A400: #89df79, A700: #f6d0b2, contrast: (50: $black-87-opacity, 100: $black-87-opacity, 200: $black-87-opacity, 300: white, 400: white, 500: $white-87-opacity, 600: $white-87-opacity, 700: $white-87-opacity, 800: $white-87-opacity, 900: $white-87-opacity, A100: $black-87-opacity, A200: white, A400: white, A700: $white-87-opacity));
$fds-primary: mat-palette($fds-base-palette, 500, 100, 500);
$fds-accent: mat-palette($fds-accent-palette, 500, 100, 500);
$fds-warn: mat-palette($fds-warn-palette, 500, 100, 500);

// Define the theme (Optionally specify a default, lighter, and darker hue.)
$fds-theme: mat-light-theme($fds-primary, $fds-accent, $fds-warn);

// FDS theme mixin
@include fds-theme($fds-theme);

You don't have to use Sass to style the rest of your application but you will need to compile this one. Angular CLI, grunt-sass, gulp-sass, and node-sass are all great options; the output of which will be a CSS file that must be included in the head of the HTML document after the base NiFi FDS CSS styles:

<link rel="stylesheet" href='node_modules/@nifi-fds/core/common/styles/css/flow-design-system.min.css'/>
<link rel="stylesheet" href='demo-app/css/fds-demo.min.css'/>

NOTE: The theme file may be concatenated and minified with the rest of the application's CSS.

Building

Developers can perform code changes and easily build this project using npm from the root nifi-fds directory via:

npm run clean:install

or to build without running unit tests run:

npm run clean:install:skipTests

Developers can speed up development time by skipping the re-installation of all node_modules:

npm run dev:install

or to skip re-installation of node_modules as well as building without running unit tests:

npm run dev:install:skipTests

Running locally

Once built you can start the application from the target directory via:

cd target
npm start

The demo application should now be available at: http://127.0.0.1:8080/. The port may differ if there is a conflict on 8080. See the output of the start command for the available URLs.

Contact us!

The developer mailing list (dev@nifi.apache.org) is monitored pretty closely, and we tend to respond quickly. If you have a question, don‘t hesitate to shoot us an e-mail - we’re here to help! Unfortunately, though, e-mails can get lost in the shuffle, so if you do send an e-mail and don‘t get a response within a day or two, it’s our fault - don't worry about bothering us. Just ping the mailing list again.

Documentation