README.md

TYPO3 Extension "placeholder_images"

Easily add placeholder images in TYPO3 using either external sources (like placeholder.com) or generating them on the fly.

What does it do?

This extensions adds a button "Add placeholder image" to content elements and other data records using FAL media fields in the TYPO3 Backend. This makes it easy to quickly add a few generated placeholder images for prototyping. Support uploading multiple placeholders images at once.

Requirements

Currently supports TYPO3 8.7 and 9.5 LTS

1. Installation

Installation with composer

composer require christianessl/placeholder_images.

Clear caches and reload the backend for all changes to take effect.

Installation with TER

Open the TYPO3 Extension Manager, search for placeholder_images and install the extension.

Clear caches and reload the backend for all changes to take effect.

2. Configuration

Initially after installing the extension, the new button will only show up if TYPO3_CONTEXT is set to Development, which can be adjusted in the Extension Configuration.

Configuration in TYPO3 8.7

• Go to Admin Tools -> Extensions -> Extension placeholder_images
• Click the extension name to access the Extension Configuration.

Configuration in TYPO3 9.5

• Go to Admin Tools -> Settings -> Extension Configuration
• Click Configure extensions and the placeholder_images to access the configuration.

Configuration options

• typo3Contexts (default: Development)
  • Comma separated list of TYPO3_CONTEXT settings for which the placeholder button should be displayed.
• defaultWidth
  • Default width of the generated images (changeable in the modal)
• defaultHeight
  • Default height of the generated images (changeable in the modal)
• defaultFormat (default: png)
  • Default file format of the generated images (changeable in the modal)
• defaultText
  • Default placeholder text (changeable in the modal). Shown as "1024x768", if empty.
• defaultBGColor
  • Default background color of the generated images (changeable in the modal)
• defaultTextColor
  • Default text color of the generated images (changeable in the modal)
• imageSource
  • The source from which the images should be generated. There are 3 options at the moment:
    • placeholder.com (external)
    • imagemagick (local image generation)
    • custom (connect your own image generation service)
• customSourceUrl
  • If you want to connect your own image generation service, place the url here in a format like:
    • //source-example.local/?width={width}&height={height}&bgcolor={bgcolor}&textcolor={textcolor}&format={format}&text={text}

3. Usage

Create a new content element like Text / Media and enjoy adding a few placeholder images.