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sequential-workflow-designer

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sequential-workflow-designer

Customizable no-code component for building flow-based programming applications.

0.9.0
unpublished
Source
npm

Version published: 2 years ago

Weekly downloads: 2.4K; increased by6.85%

Maintainers: 1

Weekly downloads

Created: last year

Source

Sequential Workflow Designer

Sequential workflow designer with 0 external dependencies for web. It's written in pure TypeScript and uses SVG for rendering. This designer is not associated with any workflow engine. It's full generic. You may create any kind application by this, from graphical programming languages to workflow designers.

Features:

0 external dependencies,
full generic & configurable,
light/dark themes,
works on modern browsers,
works on mobile,
the definition is stored as JSON,
has support for React and Angular.

📝 Check the documentation for more details.

🤩 Don't miss the pro version.

👀 Examples

Pro:

👩‍💻 Integrations

🚚 Sequential Workflow Machine - JavaScript workflow engine, powered by the xstate library.

🚀 Installation

To use the designer you should add JS/TS files and CSS files to your project.

NPM

Install this package by NPM command:

npm i sequential-workflow-designer

To import the package:

import { Designer } from 'sequential-workflow-designer';

If you use css-loader or similar, you can add CSS files to your bundle:

import 'sequential-workflow-designer/css/designer.css';
import 'sequential-workflow-designer/css/designer-light.css';
import 'sequential-workflow-designer/css/designer-dark.css';

To create the designer write the below code:

// ...
Designer.create(placeholder, definition, configuration);

CDN

Add the below code to your head section in HTML document.

<head>
...
<link href="https://cdn.jsdelivr.net/npm/sequential-workflow-designer@0.9.0/css/designer.css" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/sequential-workflow-designer@0.9.0/css/designer-light.css" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/sequential-workflow-designer@0.9.0/css/designer-dark.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/sequential-workflow-designer@0.9.0/dist/index.umd.js"></script>

Call the designer by:

sequentialWorkflowDesigner.Designer.create(placeholder, definition, configuration);

🎬 Usage

Check examples directory.

import { Designer } from 'sequential-workflow-designer';

const placeholder = document.getElementById('placeholder');

const definition = {
  properties: {
    'myProperty': 'my-value',
    // global properties...
  },
  sequence: [
    // root steps...
  ]
};

const configuration = {
  theme: 'light', // optional, default: 'light'
  isReadonly: false, // optional, default: false
  undoStackSize: 10, // optional, default: 0 - disabled, 1+ - enabled

  steps: {
    // all properties in this section are optional

    iconUrlProvider: (componentType, type) => {
      return `icon-${componentType}-${type}.svg`;
    },
    validator: (step, sourceSequence) => {
      return /^[a-z]+$/.test(step.name);
    },
    isDraggable: (step, parentSequence) => {
      return step.name !== 'y';
    },
    isDeletable: (step, parentSequence) => {
      return step.properties['isDeletable'];
    },
    canInsertStep: (step, targetSequence, targetIndex) => {
      return targetSequence.length < 5;
    },
    canMoveStep: (sourceSequence, step, targetSequence, targetIndex) => {
      return !step.properties['isLocked'];
    },
    canDeleteStep: (step, parentSequence) => {
      return step.name !== 'x';
    }
  },

  toolbox: {
    groups: [
      {
        name: 'Files',
        steps: [
          // steps for the toolbox's group
        ]
      },
      {
        name: 'Notification',
        steps: [
          // steps for the toolbox's group
        ]
      }
    ]
  },

  editors: {
    globalEditorProvider: (definition, globalContext) => {
      const editor = document.createElement('div');
      // ...
      return editor;
    },
    stepEditorProvider: (step, stepContext) => {
      const editor = document.createElement('div');
      // ...
      return editor;
    }
  },

  controlBar: true,
};

const designer = Designer.create(placeholder, definition, configuration);
designer.onDefinitionChanged.subscribe((newDefinition) => {
  // ...
});

You can hide default UI components by setting the corresponding configuration property to false.

const configuration = {
  toolbox: false,
  editors: false,
  controlBar: false,
  // ...
}

💡 License

This project is released under the MIT license.

0.9.0

Breaking Changes

This version changes the main configuration. The "isHidden" properties are prohibited. Also we added a possibility to hide the control bar. To hide the control bar or other UI component you need to set false in the corresponding configuration property.

const configuration = {
  toolbox: false,
  editors: false,
  controlBar: false,
  // ...
};

To display components you need to set a proper value.

const configuration = {
  toolbox: {
    groups: [ /* ... */ ]
  },
  editors: {
    globalEditorProvider: () => { /* ... */ },
    stepEditorProvider: () => { /* ... */ },
  },
  controlBar: true,
  // ...
};

React & Angular

The controlBar property is required from now. This change applies for the sequential-workflow-designer-angular and sequential-workflow-designer-react packages as well.

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Package last updated on 13 Mar 2023

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