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[Drag And Drop] A Minimal Javascript Library to Create Flow Charts | Flowy.js

Flowy makes creating web applications with the flowchart function a very simple task. Build automation software, mind mapping tools, or simple programming platforms in minutes by applying the library in your project.

How to make use of it:

1. To get began, include the Flowy.js library on the webpage.

<link href="/path/to/flowy.min.css" rel="stylesheet" />
<script src="/path/to/flowy.min.js"></script>

2. Create a component to hold the flowchart.

<div id="canvas">
</div>

3. Create predefined blocks that may be inserted into the flowchart by way of drag and drop.

<div class="create-flowy">
  Block 1
</div>

<div class="create-flowy">
  Block 2
</div>

<div class="create-flowy">
  Block 3
</div>

...

4. Initialize the flowchart builder and completed it.

flowy(document.getElementById("canvas"));

5. Event handlers.

function onGrab(block){
  // do something
};

function onRelease(){
  // do something
};

function onSnap(block, first, parent){
  // do something
};

function onRearrange(block, parent){
  // When a block is rearranged
};

flowy(document.getElementById("canvas"), onGrab, onRelease, onSnap, onRearrange);

6. Set the house between blocks.

var spacing_x = 20;
var spacing_y = 50;
flowy(document.getElementById("canvas"), onGrab, onRelease, onSnap, onRearrange, spacing_x, spacing_y);

7. Get the flowchart data.

// As a JS object
flowy.output();
// As a JSON string
JSON.stringify(flowy.output());

8. Remove all blocks from the canvas.

flowy.deleteBlocks()

9. Import data into the flowchart.

flowy.import(output)

Drag And Drop Flowchart Builder, Flowy Plugin/Github

Changelog:

 

2020-07-29

  • Automatically scroll canvas when dragging to edges

2020-06-18

  • Parsing block properties on import

2020-05-16

  • OnSnap method now returns the parent DOM component

2020-04-23

  • Fix scroll problem on rearranging

2020-04-18

  • Remove “dragging” class after rearranging

2020-04-17

  • Fixed error when importing just one block

A Minimal Javascript Library to Create Flow Charts


See Demo And Download

Official Website(alyssaxuu): Click Here

This superior jQuery/javascript plugin is developed by alyssaxuu. For extra Advanced Usages, please go to the official website.

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