=== Carousel Slider Block for Gutenberg ===
Contributors: virgildia
Donate link: http://virgiliudiaconu.com/
Tags: carousel, slide, gutenberg, swiper
Requires at least: 6.1
Tested up to: 7.0
Requires PHP: 7.0+
Stable tag: 2.1.5
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html


== Description ==

A responsive modern carousel slider for the Gutenberg block editor that lets you add any blocks to your slides. Easily create sliders for hero sections, testimonials, products, and anything else using Gutenberg blocks.

 🚀 **Carousel Slider Version 2** is built on the modern Swiper.js library for improved performance and better mobile compatibility.

Plugin site: <a href="https://www.carouselblock.com/">carouselblock.com</a>

= Features =

 - Add unlimited slides
 - Add any blocks to the slides
 - Preview the carousel in the editor
 - Responsive and touch enabled
 - Developer friendly: supports CSS variables & theme.json

= Settings =

 - Slides per view
 - Slides to scroll at a time
 - Slide speed
 - Slide padding
 - Prev/next arrows
 - Dots navigation
 - Infinite loop sliding
 - Autoplay
 - Pause on hover
 - Disable on interaction
 - Responsive settings: slides to show and scroll at given screen size
 - RTL

= Advanced Settings =

For dynamic layouts where the slider or its surrounding layout changes after load, such as tabs, accordions, or lazy-loaded content.

 - ResizeObserver
 - Observer
 - Observe parent elements
 - Observe slide children

= Plugin Settings =

Plugin settings are available from Settings > Carousel Slider in the WordPress admin.

Available options include showing legacy carousel blocks, hiding the legacy warning notice, and loading the full Swiper bundle instead of the default custom Swiper build.

= Included Patterns =

- Full Width Hero Slider
- Testimonials Slider
- Logos Carousel

The final look of these sliders depends on your theme styles. You can also fine-tune the design using custom CSS variables (see below).

== Requirements ==

PHP 5.6+ is recommended, WordPress 5.8+, with Gutenberg active.

== Documentation ==

Full documentation: <a href="https://www.carouselblock.com/docs">carouselblock.com/docs</a>

Select the Carousel Slider block from the Design category. Click the + button located at the end of the carousel to add slides. Add any block within the slides. Use the horizontal scrollbar to preview the slides in the editor.

You can reorder the slides by using the left and right arrow buttons in the toolbar.

To remove a slide, select the slide and click the three dots right above it. Click the option to remove that slide.

Click the Carousel Block (the block nesting all the slides) to show the carousel settings.

= Upgrading from Legacy Carousel =

See the [support topic](https://wordpress.org/support/topic/how-to-update-to-carousel-slider-block-version-2/) for upgrading legacy blocks to Carousel Slider Version 2.

Carousel Slider settings are available from Settings > Carousel Slider in the WordPress admin.

### Customizing Styles

Carousel Slider v2 supports custom styling via CSS variables:

Styling documentation: <a href="https://www.carouselblock.com/docs?doc=styling">carouselblock.com/docs?doc=styling</a>

#### Navigation
- `--wp--custom--carousel-block--navigation-size`: Arrow icon size  
- `--wp--custom--carousel-block--navigation-sides-offset`: Distance from edge  
- `--wp--custom--carousel-block--navigation-color`: Arrow color  
- `--wp--custom--carousel-block--navigation-hover-color`: Arrow hover color (falls back to `navigation-color`)  
- `--wp--custom--carousel-block--navigation-alignfull-color`: Arrow color when carousel is full width  

---

#### Pagination (dots)
- `--wp--custom--carousel-block--pagination-top`: Top offset  
- `--wp--custom--carousel-block--pagination-bottom`: Bottom offset  
- `--wp--custom--carousel-block--pagination-bullet-size`: Bullet size  
- `--wp--custom--carousel-block--pagination-bullet-active-color`: Active bullet color  
- `--wp--custom--carousel-block--pagination-bullet-inactive-color`: Inactive bullet color  
- `--wp--custom--carousel-block--pagination-bullet-inactive-hover-color`: Inactive bullet hover color (falls back to `active-color` if set)  
- `--wp--custom--carousel-block--pagination-bullet-active-opacity`: Active bullet opacity  
- `--wp--custom--carousel-block--pagination-bullet-inactive-opacity`: Inactive bullet opacity  
- `--wp--custom--carousel-block--pagination-bullet-inactive-hover-opacity`: Inactive bullet opacity on hover (falls back to `inactive-opacity` if not set)  
- `--wp--custom--carousel-block--pagination-bullet-horizontal-gap`: Space between bullets (horizontal)  
- `--wp--custom--carousel-block--pagination-bullet-vertical-gap`: Space between bullets (vertical)  

---

#### Block Spacing
- `--wp--custom--carousel-block--image-margin-top`: Top margin for image blocks  
- `--wp--custom--carousel-block--image-margin-bottom`: Bottom margin for image blocks  
- `--wp--custom--carousel-block--cover-margin-top`: Top margin for cover blocks  
- `--wp--custom--carousel-block--cover-margin-bottom`: Bottom margin for cover blocks  


### Theme JSON Support

All the CSS variables can also be defined directly inside your theme's `theme.json` under the `settings.custom` key.  

For example:

<pre><code>{
  "settings": {
    "custom": {
      "carousel-block": {
        "navigation-size": "22px",
        "navigation-color": "#000",
        "pagination-bullet-active-color": "#000"
      }
    }
  }
}
</code></pre>

### Frontend API

Carousel Slider exposes a small frontend API for integrations with tabs, accordions, modals, or other hidden UI.

For some of these dynamic layout cases, the Advanced Settings observer options can also handle updates automatically.

- `window.CarouselSliderBlock.init( container )`: Initializes carousel instances inside the given container.
- `window.CarouselSliderBlock.update( container )`: Updates existing carousel instances inside the given container and initializes any that are not yet initialized.

== Installation ==

1. From your WordPress dashboard go to **Plugins > Add New**.
1. Search for **Carousel Slider Block** in the **Search Plugins** box.
1. Click **Install Now** to install the **Carousel Slider Block** Plugin.
1. Click **Activate** to activate the plugin.
1. **Carousel Slider Block** will be added to the **Design** block group in the editor. 

If you still need help. visit [WordPress codex](https://codex.wordpress.org/Managing_Plugins#Installing_Plugins)

== Screenshots ==

1. Add any blocks to the carousel slides 
2. Hero sliders
3. Testimonials and logo carousel
4. Carousel settings
5. Carousel editor

== Frequently Asked Questions ==
 
= What is Gutenberg? =
 
Gutenberg is the name of the new block based editor introduced in WordPress 5. Gutenberg makes it easy to create content within the editor using blocks.

= How do I add a carousel to WordPress? =
 
Select the Carousel Slider block from the Design category.

= How do I add a slide to WordPress? =
 
Select the Carousel Slider block. Click the plus button to add slides to the carousel. 

= How do I add an image carousel in Gutenberg? =

Add the Carousel Slider block from the block inserter and upload images or create slides inside the block. Each slide can contain images, text, or other blocks.

= Can I add multiple carousels on the same page? =

Yes. You can add multiple Carousel Slider blocks to a page or post and each carousel will work independently.

= Can I add images and text inside carousel slides? =

Yes. Each slide can contain images, text, buttons, or other blocks depending on how you want to design your carousel.

= Is the carousel mobile friendly? =

Yes. The carousel is fully responsive and works on mobile phones, tablets, and desktop devices.

= Can I use the carousel in posts and pages? =

Yes. The Carousel Slider block works in both WordPress posts and pages anywhere the block editor is available.

= How can I make the carousel performant in WordPress? =

The Carousel Slider block uses the lightweight Swiper library for fast and smooth performance. For best results, use optimized images and enable lazy loading on any Image blocks inside slides so images load only when needed.

= How do I make the slider update inside tabs, accordions, modals, or other dynamic layouts? =

Use the Advanced Settings observer options when the slider or its surrounding layout changes after load. For custom integrations, you can also call `window.CarouselSliderBlock.init( container )` or `window.CarouselSliderBlock.update( container )` after the layout changes.

= Why does the plugin use Swiper.js? =

The Carousel Slider block uses the lightweight Swiper.js library because it provides fast, smooth, and responsive sliders. Swiper is widely used, mobile-friendly, and optimized for performance.

= How do I add a slider to WordPress without coding? =

Install the Carousel Slider plugin and add the Carousel Slider block to your page or post using the block editor.

---

== Changelog ==

= 2.1.5 =
- Retired the legacy settings page from wp-admin.
- Existing saved settings still work, and can be overridden with PHP filters: cb_carousel_block_setting_show_legacy_blocks, cb_carousel_block_setting_hide_legacy_notice, cb_carousel_block_setting_use_full_swiper_bundle.
- Example: add_filter( 'cb_carousel_block_setting_show_legacy_blocks', '__return_true' );

= 2.1.4 =
- Added Swiper a11y support to the new bundled assets.

= 2.1.3 =
- Fixed Swiper responsive breakpoint updates by ensuring the block's ResizeObserver setting is passed explicitly and clarified the ResizeObserver help text to recommend leaving it off for normal responsive breakpoints.

= 2.1.2 =
- Reduced default Swiper assets with a custom build and added a full bundle fallback setting.
- Restored the Carousel Slider settings page in the WordPress Settings menu.
- Improved editor appender sizing in the carousel block.

= 2.1.1 =
- Improved PHP 8+ compatibility for the settings page

= 2.1.0 =
- Added starter carousel patterns for hero, testimonials, and logos

= 2.0.10 =
- Stability fix

= 2.0.9 =
- Added Carousel Slider settings for legacy block visibility
- Hid the legacy settings page from the admin menu while keeping direct URL access at `/wp-admin/options-general.php?page=cb-carousel-settings`
- Added advanced Swiper observer settings and updated documentation
- Increased default vertical spacing for navigation dots

= 2.0.8 =
- Simplified the labels in the editor panel
- Removed "v2" from block titles and added "v1" to legacy blocks

= 2.0.7 =
- Added pauseOnMouseEnter and disableOnInteraction to autoplay settings
- Exposed frontend carousel init() and update() APIs for tabs, accordions, and other hidden UI.

= 2.0.6 =
Additional CSS variables 

= 2.0.5 =
Fix block insert

= 2.0.4 =
- Fix for hide legacy option
- Update plugin description

= 2.0.3 =
Removed block.json from legacy blocks

= 2.0.2 =
- Added custom CSS variable for pagination bullet gap
- Corrected documentation for navigation color variable
- Removed unnecessary max-width property blocking inner block widths in editor

= 2.0.1 =
- Changed legacy block setting to "Show legacy blocks", disabled by default
- CSS update for pagination margin

= 2.0.0 =
- Introduced Carousel Slider v2 built on Swiper.js
- Legacy blocks are still supported but can be upgraded to v2 via block transforms
- Added settings to hide legacy blocks and legacy upgrade notices

= 1.0.16 = 
Fix slider init.

= 1.0.15 = 
Button block appender fix.

= 1.0.14 = 
Update CSS for image block centering. 

= 1.0.13 = 
Reverted Slick init to working solution - outside the WP block build process.

= 1.0.12 =
Added tag dependency.

= 1.0.11 =
Fixed layout issue in rows.
Code refactoring.

= 1.0.10 =
Fixed lodash error with latest WordPress 6.4 update.

= 1.0.9 =
Fixed error message on Widget Editor screen. Tested on WordPress 6.3.1.

= 1.0.8 =
Small CSS improvements in the editor. Updated slick CSS stylesheet handle. Tested on WordPress 6.0.

= 1.0.7 =
Added responsive setting for slides to scroll at a time.

= 1.0.6 =
Eliminated block margin CSS issue in slides.
Changed the style of the "Add slide" button.

= 1.0.5 =
Added block.json. Improved carousel block layout in the editor. Updated slide block icon. Tested for WordPress 5.9.

= 1.0.4 =
Improved UI experience by using inner blocks controls. Added RTL option. Removed padding option. Updated slide block icon.

= 1.0.3 =
Added autoplay settings.

= 1.0.2 =
Updates for latest WP Gutenberg version. Fixed editor CSS. 

= 1.0.1 =
Fixed lodash issue.

= 1.0.0 =
First release of the plugin.
