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Create a Customizable T-Shirt ProductPRO

This tutorial explains how we created the customizable t-shirt product demo. In this demo, the color of the t-shirt changes when a color field on the form is changed. This is achieved by changing the color of an element in an SVG file.


The tutorial requires:

Our WooCommerce demo site also feature text editing (not included in this tutorial). You can download the full t-shirt form file here: tshirt-full.json

The SVG File

If you would like to learn more about the SVG format, click here. You can create SVG files using popular vector software such as Adobe Illustrator or Sketch.

The tshirt.svg file has several layers that make the coloring effect possible.

  • A JPEG image layer. This is an image of a  solid white t-shirt.
  • A SCREEN layer. This is the layer that the color is applied to that makes the t-shirt appear to be a different color. (Class: wsf-tshirt-screen).
  • A LOGO layer (This later is optional).

Customizable T-Shirt Product Tutorial - SVG

Enable SVGs in WordPress

To enable SVG’s in WordPress we recommend using the plugin SVG Support. This enables you to use SVG’s as featured images in posts, pages and products.

Enable ‘Force Inline SVG?’ in the settings for this plugin. This will ensure the SVG is not output as an img tag and allows JavaScript to manipulate elements of the SVG.

Create The Form

  1. Click ‘Add New’ under the WS Form menu.
  2. Click ‘Blank’ to create a blank form.
  3. Drag the tshirt.json file into the layout editor to import it. Click ‘Ok’ when prompted. (You can also use the ‘Import’ icon at the top of the layout editor).
  4. Click ‘Publish’.

Customizable T-Shirt Product Tutorial - Create Form

Creating The Product

To create the product:

  1. Add a product in WooCommerce.
  2. Enter a product name (e.g. T-Shirt Tutorial).
  3. Add a regular price of zero or greater (e.g. 10).
  4. Click on ‘Set product image’.
  5. Upload the tshirt.svg file.
  6. Click ‘Set product image’.
  7. Click ‘Publish’ to create the product.

Customizable T-Shirt Product Tutorial - Create Product

Assigning The Form To The Product

The next step is to assign your form to the product to customize it. While still editing the product…

  1. Click on the WS Form tab in the ‘Product data’ section.
  2. Click ‘choose an existing form’.
  3. Select the ‘Customizable T-Shirt Product Tutorial’ form you imported above.
  4. Click ‘Update’ to save the changes.
  5. Click on the product URL to preview the product.

Customizable T-Shirt Product Tutorial - Assign Form

Test The Product

Click the product link to view the product. You should now find the SVG screen layer is updated when a color is selected.

Customizable T-Shirt Product Tutorial - Finished Product

How It Works – Conditional Logic

In order to change the SVG screen layer color, we use conditional logic in WS Form. Conditional logic lets you create interactive forms.

To view the conditional logic for the T-Shirt form:

  1. Edit the form.
  2. Click the ‘Conditional Logic’ icon at the top of the layout editor. The Conditional Logic sidebar will open.
  3. Click the gear icon next to the ‘Color Picker’ row.

Color Picker

The conditional logic for the color picker checks for ‘On input’ (when a user clicks or drags the color picker) and ‘Changed’ (when the color is changed by the user or another conditional logic THEN/ELSE statement) events on the ‘Color Picker’ field.

Customizable T-Shirt Product Tutorial - Color Picker Conditional Logic

The ‘THEN’ statement runs whenever the color picker is changed. When a change occurs, the following JavaScript is executed:

$('.wsf-tshirt-screen').css({fill: '#field(612)', 'mix-blend-mode': 'multiply'});

This is a combination of regular JQuery and WS Form variables. The value of the color picker #field(612) (612 will be different in your form and is the field ID of the color picker) is used to set the CSS file property of the wsf-tshirt-screen class.

Commerce Color

The conditional logic for the ‘Commerce’ text on the t-shirt checks the lightness of the ‘Color Picker’ field.

Customizable T-Shirt Product Tutorial - Commerce Color Conditional Logic

If the lightness is less than 50 (dark), the text is set to white using the following JavaScript:

$('.wsf-tshirt-logo-commerce').css({fill: '#fff'});

If the lightness is greater than or equal to 50 (light), the test is set to white using the following JavaScript:

$('.wsf-tshirt-logo-commerce').css({fill: '#000'});