Ankit Panchal

Category: Master the WordPress Block Editor in 30 Days

  • Conclusion: Mastering Gutenberg Development in 30 Days

    Introduction

    Congratulations! You’ve reached the end of our 30-day journey into the world of Gutenberg block development. Over the past month, you’ve learned how to create custom blocks, optimize their performance, design dynamic templates, and much more. This conclusion article will recap the most important lessons, celebrate the skills you’ve gained, and provide guidance for your next steps as a Gutenberg developer.

    Whether you’re looking to apply your new skills to client projects, contribute to the WordPress community, or continue exploring advanced topics, this series has equipped you with the tools and knowledge you need to excel.

    Recap: What You’ve Learned

    Over the past 30 days, we’ve covered a wide range of topics, from basic block creation to advanced features like dynamic templates. Here’s a quick recap of what you’ve achieved:

    1. Getting Started with Gutenberg: You began by understanding the fundamentals of the Block Editor and setting up a development environment for creating custom blocks.
    2. Building Custom Blocks: You learned how to register blocks, use attributes, and design user-friendly interfaces with InspectorControls and BlockControls.
    3. Advanced Block Features: We dove into topics like block variations, nested blocks, and reusable blocks, helping you create more versatile and flexible block structures.
    4. Dynamic Content and Templates: We explored how to create dynamic block templates that adjust based on user input, metadata, and user roles, offering personalized content experiences.
    5. Optimizing Performance: You mastered techniques to minimize bundle sizes, use lazy loading, and implement server-side rendering for faster, more efficient blocks.
    6. Best Practices and Future Outlook: On Day 30, we discussed the importance of clean code, accessibility, and testing—key elements for long-term success in Gutenberg development.

    By following this series, you’ve built a strong foundation that will serve you well as you continue your journey as a WordPress developer.

    Key Takeaways: What to Remember

    As you look back on this series, here are some key takeaways to keep in mind:

    • Focus on the User: Always prioritize the end-user experience. Make your blocks intuitive, accessible, and easy to use, ensuring that content creators have a smooth editing experience.
    • Leverage the Gutenberg API: The WordPress Block Editor provides powerful APIs that simplify block creation and data management. Use these tools to streamline your workflow and add advanced functionality.
    • Stay Up-to-Date: Gutenberg and WordPress are constantly evolving. Stay updated with new features, tools, and best practices by following WordPress developer blogs and community forums.
    • Collaborate and Contribute: Share your knowledge, contribute to open-source projects, and participate in the WordPress community. It’s a great way to refine your skills and make valuable connections.

    What’s Next? Your Path Forward

    Now that you’ve completed this 30-day series, you might be wondering what comes next. Here are a few suggestions for how to continue your growth as a Gutenberg developer:

    1. Build Real-World Projects: Apply what you’ve learned to real projects, whether that’s building custom themes, creating specialized blocks for clients, or developing plugins.
    2. Contribute to the WordPress Core: Dive deeper into the WordPress community by contributing to Gutenberg itself. This is a great way to deepen your understanding of the Block Editor’s inner workings.
    3. Explore React and JavaScript: If you haven’t already, consider expanding your knowledge of React and JavaScript, as these skills are crucial for advanced Gutenberg development and beyond.
    4. Join WordPress Events: Engage with the community by attending WordPress meetups, WordCamps, and online webinars. These events are great for networking and staying updated on the latest trends.

    A Note of Thanks

    Thank you for joining me on this 30-day journey into Gutenberg development! I hope this series has inspired you to take your WordPress skills to the next level and given you the confidence to create amazing content experiences. It’s been a pleasure guiding you through this process, and I’m excited to see what you create next!

    If you have any questions, need further guidance, or simply want to share your progress, don’t hesitate to reach out. Keep pushing your limits, stay curious, and happy coding!

  • Day 29: Optimizing Block Performance in Gutenberg

    Introduction

    Welcome to Day 29 of the Gutenberg development series! Today, we’ll discuss optimizing block performance to ensure that custom blocks load quickly and efficiently in the WordPress Block Editor and on the front end. Poorly optimized blocks can slow down the editing experience, especially when dealing with complex content. By following best practices and implementing performance improvements, you can create smoother, faster blocks that enhance the user experience.

    In this guide, you’ll learn how to:

    • Minimize block bundle sizes for faster loading.
    • Use code-splitting and lazy loading.
    • Optimize block queries and data fetching.

    Why Is Performance Important for Gutenberg Blocks?

    Performance optimization is crucial for a seamless user experience in the Block Editor. Slow-loading blocks can frustrate users, especially when working with large content. Optimized blocks:

    • Load Faster: Speed up the Block Editor by reducing load times.
    • Enhance Usability: Create a smoother editing experience by minimizing delays.
    • Improve SEO: Faster blocks on the front end contribute to better page load speeds, which can positively impact search engine rankings.

    Step 1: Minimize JavaScript and CSS Bundle Sizes

    Reducing the size of your block’s JavaScript and CSS bundles is key to faster load times.

    1. Use import Statements for Specific Functions

    When importing functions from WordPress libraries, import only what you need instead of entire packages.

    // Instead of this
import { __ } from '@wordpress/i18n';
import { registerBlockType } from '@wordpress/blocks';
import { useSelect, useDispatch } from '@wordpress/data';
import { InspectorControls, ColorPalette, RichText } from '@wordpress/block-editor';

// Import only what you need
import { __ } from '@wordpress/i18n';
import { registerBlockType } from '@wordpress/blocks';
import { useSelect } from '@wordpress/data';
import { InspectorControls } from '@wordpress/block-editor';

    Explanation:

    • Selective Imports: This helps reduce the size of your JavaScript bundle, leading to faster load times.
    • Tree-Shaking: Modern bundlers like Webpack will automatically remove unused imports, but keeping imports minimal helps further.
    1. Minify JavaScript and CSS

    Use tools like Terser for JavaScript minification and CSSNano for CSS to reduce file sizes:

    npm install terser cssnano --save-dev

    Explanation:

    • Minification: Reduces the size of JavaScript and CSS files by removing whitespace, comments, and unnecessary characters.

    Step 2: Code-Splitting and Lazy Loading

    To avoid loading all scripts and styles at once, use code-splitting and lazy loading to load resources only when needed.

    1. Lazy Load Heavy Components

    For example, if a block has a Media Library component that loads images, lazy load this component only when it’s needed:

    import { lazy, Suspense } from '@wordpress/element';

const MediaLibrary = lazy(() => import('./MediaLibrary'));

const MyBlockEdit = () => (
    <Suspense fallback={<div>Loading...</div>}>
        <MediaLibrary />
    </Suspense>
);

    Explanation:

    • Lazy: Dynamically imports the MediaLibrary component, loading it only when it’s required.
    • Suspense: Displays a fallback UI (like a loading spinner) while the component loads.
    1. Split Your Code Using Webpack

    Configure Webpack to split your code into smaller chunks:

    module.exports = {
    optimization: {
        splitChunks: {
            chunks: 'all',
        },
    },
};

    Explanation:

    • Code-Splitting: Breaks down your JavaScript into smaller bundles, which are loaded as needed rather than all at once.

    Step 3: Optimize Data Fetching with useSelect

    Fetching data efficiently ensures that your blocks don’t make unnecessary requests, slowing down the editor.

    1. Limit API Requests Using useSelect

    If your block fetches data (e.g., posts or user details), use useSelect to retrieve only the data you need:

    import { useSelect } from '@wordpress/data';

const MyBlockEdit = () => {
    const latestPosts = useSelect((select) =>
        select('core').getEntityRecords('postType', 'post', { per_page: 5 })
    );

    if (!latestPosts) {
        return 'Loading...';
    }

    return (
        <ul>
            {latestPosts.map((post) => (
                <li key={post.id}>{post.title.rendered}</li>
            ))}
        </ul>
    );
};

    Explanation:

    • Selective Data Fetching: By limiting the number of posts fetched, you prevent unnecessary load on the server and the Block Editor.
    • Conditional Rendering: Displays a loading state until the data is ready, improving the perceived performance.

    Step 4: Use Server-Side Rendering for Complex Blocks

    For blocks that involve heavy processing or calculations, use server-side rendering to reduce the load on the Block Editor.

    1. Server-Side Render a Block

    In your block registration file, enable server-side rendering:

    register_block_type('my-theme/server-side-block', array(
    'render_callback' => 'my_theme_render_server_side_block',
));

function my_theme_render_server_side_block($attributes) {
    $content = '<div class="server-side-content">Dynamic content generated on the server.</div>';
    return $content;
}

    Explanation:

    • Server-Side Rendering: Shifts complex logic to the server, ensuring that the editor remains responsive by loading pre-rendered content.
    • render_callback: Uses PHP to render the block on the server, ideal for blocks that fetch data or perform calculations.

    Step 5: Optimizing Front-End Performance

    1. Load Scripts and Styles Conditionally

    Ensure that block scripts and styles are only loaded on pages where they’re needed:

    function my_theme_enqueue_block_assets() {
    if (has_block('my-theme/specific-block')) {
        wp_enqueue_style('my-theme-block-style', get_template_directory_uri() . '/blocks/style.css');
        wp_enqueue_script('my-theme-block-script', get_template_directory_uri() . '/blocks/script.js', array(), '1.0.0', true);
    }
}
add_action('enqueue_block_assets', 'my_theme_enqueue_block_assets');

    Explanation:

    • Conditional Loading: Ensures that block-specific styles and scripts are only loaded on pages that use those blocks, reducing the overall page load time.

    Best Practices for Block Performance Optimization

    1. Test Performance Regularly: Use tools like Lighthouse and Chrome DevTools to analyze the performance of your blocks in the editor and on the front end.
    2. Bundle Only What You Need: Avoid adding unnecessary libraries or assets to your block bundles.
    3. Prioritize User Experience: Focus on optimizing parts of your blocks that directly impact user interactions, such as loading states or media-heavy components.

    Conclusion: Making Gutenberg Blocks Fast and Efficient

    Optimizing the performance of your custom Gutenberg blocks ensures that users have a smooth and responsive editing experience. By minimizing bundle sizes, using code-splitting, optimizing data fetching, and leveraging server-side rendering, you can create blocks that are both powerful and efficient.

    In this article, you’ve learned how to:

    • Reduce bundle sizes for faster block loading.
    • Use lazy loading and code-splitting for resource efficiency.
    • Optimize data fetching with useSelect and conditional rendering.
    • Leverage server-side rendering for complex blocks.

    In Day 30, we’ll conclude our series by exploring best practices for Gutenberg development, summarizing key takeaways, and looking at the future of WordPress block development.

  • Day 30: Best Practices for Gutenberg Development

    Introduction

    Welcome to Day 30 of the Gutenberg development series! Over the past 29 days, we’ve explored a wide range of topics, from creating simple blocks to building dynamic templates and optimizing performance. Today, we’ll summarize the best practices you should follow as a Gutenberg developer to ensure that your blocks are efficient, user-friendly, and scalable.

    In this article, you’ll learn about:

    • Best coding practices for Gutenberg block development.
    • Ensuring maintainable and scalable code.
    • Tips for delivering a great user experience in the Block Editor.

    1. Write Clean, Modular Code

    Modular code is easier to maintain, test, and reuse across different projects. Focus on breaking down complex components into smaller, reusable functions or components.

    Tips for Writing Modular Code:

    • Use Custom Hooks: For repetitive logic in your blocks, create custom React hooks to keep your components clean.
    • Separate Styles: Keep your CSS separate from the block’s JavaScript to avoid clutter and make style adjustments easier.
    • Use Helper Functions: For complex calculations or repeated logic, use helper functions to keep your block logic simple.
    // Example of a custom hook
const useCurrentUser = () => {
    const user = useSelect((select) => select('core').getCurrentUser());
    return user;
};

    2. Follow WordPress Coding Standards

    Adhering to WordPress coding standards ensures that your code is consistent with the rest of the ecosystem and makes collaboration easier.

    Key Standards to Follow:

    3. Prioritize Accessibility

    Accessibility is crucial for ensuring that all users, including those with disabilities, can interact with your blocks. Make sure your blocks comply with accessibility standards.

    Accessibility Best Practices:

    • Use ARIA Attributes: Add ARIA roles and attributes to ensure screen reader compatibility.
    • Focus Management: Ensure that interactive elements like buttons and forms are keyboard accessible.
    • Readable Colors: Use sufficient color contrast in your block designs for readability.

    4. Optimize for Performance

    As covered in Day 29, performance is a key aspect of a good user experience. Focus on minimizing your block’s impact on the Block Editor’s performance.

    Performance Tips:

    • Lazy Load Components: Load heavy components only when needed to reduce the initial load time.
    • Minify Assets: Use tools like Terser and CSSNano to minify your JavaScript and CSS.
    • Use Server-Side Rendering: For blocks that involve complex logic or data fetching, consider rendering them on the server.

    5. Leverage the Block Editor API

    WordPress provides a robust API for creating and managing blocks. Use the available APIs to streamline your block creation process.

    Recommended APIs:

    • useSelect and useDispatch: For interacting with the WordPress data store.
    • InspectorControls: For adding custom settings to the block sidebar.
    • Block Variations API: For offering different styles or configurations of the same block.
    import { useSelect, useDispatch } from '@wordpress/data';

    6. Create a Great User Experience

    The goal of Gutenberg is to provide a visual and intuitive way of building content. Keep the end-user experience in mind when developing blocks.

    User Experience Tips:

    • Provide Clear Labels: Use descriptive labels and placeholders to guide users.
    • Add Helpful Previews: Include block previews to help users understand what each block does before adding it to the content.
    • Use Placeholders for Guidance: For complex blocks, use placeholder content to show users where they can start editing.

    7. Maintain Up-to-Date Documentation

    As your blocks evolve, ensure that your documentation stays current. Good documentation helps users understand how to use your blocks and aids developers in maintaining them.

    Documentation Best Practices:

    • Include Code Examples: Show how to use each block with code snippets.
    • Provide Usage Scenarios: Describe common use cases for each block to help users get started.
    • Update Regularly: Keep your documentation in sync with any updates to your blocks.

    8. Test Thoroughly Across Different Environments

    Ensure that your blocks work seamlessly across different WordPress versions, themes, and plugins.

    Testing Recommendations:

    • Cross-Browser Testing: Verify that your blocks work well in all major browsers.
    • Compatibility with Popular Themes: Test with popular themes like Twenty Twenty-One to ensure consistent styling.
    • Use Debugging Tools: Tools like React DevTools and WP-CLI can help identify issues during development.

    Conclusion: Achieving Excellence in Gutenberg Development

    Congratulations on completing the 30-day journey to mastering Gutenberg development! By following best practices and building a strong foundation in WordPress block creation, you are well-equipped to create efficient, user-friendly, and scalable blocks that enhance the editing experience for users.

    In this article, you’ve learned:

    • How to maintain clean, modular, and accessible code.
    • The importance of performance optimization in block development.
    • Tips for creating a seamless user experience in the Block Editor.

    With these best practices, you can continue to innovate and contribute to the WordPress community, making the most of the powerful Gutenberg framework.

  • Day 28: Building Dynamic Block Templates in Gutenberg

    Introduction

    Welcome to Day 28 of the Gutenberg development series! Today, we’ll dive into dynamic block templates, which allow you to create layouts that adapt based on user input or specific conditions. Dynamic templates make it possible to create interactive content structures, such as user-specific welcome messages, conditionally displayed call-to-action blocks, and more.

    In this guide, you’ll learn how to:

    • Define dynamic templates for blocks.
    • Use conditional logic to adjust block content.
    • Create templates that adjust based on user roles or metadata.

    What are Dynamic Block Templates in Gutenberg?

    Dynamic block templates are predefined layouts that can adjust based on user input or other conditions. Unlike static templates, which remain the same for every instance, dynamic templates can change their structure or content based on specific criteria. This is useful for:

    • Personalized Content: Show different content based on user roles or preferences.
    • Interactive Layouts: Adjust the structure of a page based on selections or user input.
    • Advanced Customization: Create templates that adapt to various scenarios, like showing different blocks based on whether a user is logged in or not.

    Step 1: Creating a Dynamic Template with Conditional Blocks

    Let’s create a Welcome Block that displays different content based on whether a user is logged in or not.

    1. Register the Welcome Block

    In your block registration file (e.g., blocks/welcome-block.js), define the block and use conditional rendering to adjust the displayed content.

    import { registerBlockType } from '@wordpress/blocks';
import { useSelect } from '@wordpress/data';

registerBlockType('my-theme/welcome-block', {
    title: 'Welcome Block',
    icon: 'smiley',
    category: 'my-theme-blocks',
    edit: () => {
        const isLoggedIn = useSelect((select) => select('core').isUserLoggedIn(), []);
        const welcomeMessage = isLoggedIn ? 'Welcome back, valued user!' : 'Hello, please log in to access more features.';

        return (
            <div className="welcome-block">
                <p>{welcomeMessage}</p>
            </div>
        );
    },
    save: () => null, // Server-side rendered block
});

    Explanation:

    • useSelect: This hook allows you to access the WordPress data store and determine if a user is logged in.
    • Conditional Message: Displays a different welcome message depending on the user’s login status.
    • Server-Side Rendered: The block is saved with save: () => null, which means it will be rendered on the server, allowing the content to adapt dynamically on the front end.

    Step 2: Adding Conditional Logic for User Roles

    You can further customize the block to display different messages based on the user’s role (e.g., Administrator, Subscriber).

    1. Enhance the Welcome Block with Role-Based Messages

    Update the edit function to include role-based logic:

    import { select } from '@wordpress/data';

const getUserRole = () => {
    const user = select('core').getCurrentUser();
    return user?.roles?.[0] || 'guest';
};

registerBlockType('my-theme/welcome-block', {
    title: 'Welcome Block',
    icon: 'smiley',
    category: 'my-theme-blocks',
    edit: () => {
        const role = getUserRole();
        let welcomeMessage;

        switch (role) {
            case 'administrator':
                welcomeMessage = 'Welcome back, Admin! Here are your latest updates.';
                break;
            case 'subscriber':
                welcomeMessage = 'Hello, valued subscriber! Enjoy your personalized content.';
                break;
            default:
                welcomeMessage = 'Welcome! Please log in or register to access more features.';
        }

        return (
            <div className="welcome-block">
                <p>{welcomeMessage}</p>
            </div>
        );
    },
    save: () => null, // Server-side rendered block
});

    Explanation:

    • getUserRole: Retrieves the current user’s role from the WordPress store.
    • Switch Statement: Uses a switch statement to adjust the message based on the user’s role, providing personalized content for different user types.

    Step 3: Using Dynamic Templates with Metadata

    You can also create dynamic templates that adjust based on post metadata or custom fields.

    1. Register a Dynamic Template for a Custom Post Type

    Let’s create a Project Block that displays different information based on custom metadata (e.g., Project Status).

    registerBlockType('my-theme/project-block', {
    title: 'Project Block',
    icon: 'portfolio',
    category: 'my-theme-blocks',
    edit: ({ attributes, setAttributes }) => {
        const { projectStatus } = attributes;

        const statusMessage = projectStatus === 'completed'
            ? 'This project is completed. Check out the final results below.'
            : 'This project is in progress. Stay tuned for updates.';

        return (
            <div className="project-block">
                <select
                    value={projectStatus}
                    onChange={(event) => setAttributes({ projectStatus: event.target.value })}
                >
                    <option value="in-progress">In Progress</option>
                    <option value="completed">Completed</option>
                </select>
                <p>{statusMessage}</p>
            </div>
        );
    },
    attributes: {
        projectStatus: {
            type: 'string',
            default: 'in-progress',
        },
    },
    save: ({ attributes }) => {
        const { projectStatus } = attributes;
        return (
            <div className={`project-block ${projectStatus}`}>
                <p>
                    {projectStatus === 'completed'
                        ? 'This project is completed. Check out the final results below.'
                        : 'This project is in progress. Stay tuned for updates.'}
                </p>
            </div>
        );
    },
});

    Explanation:

    • Custom Metadata: Uses a dropdown to set the projectStatus attribute, allowing users to change the message displayed.
    • Dynamic Output: Adjusts the content based on the value of projectStatus, making it easy to change messages as the project progresses.

    Step 4: Testing Dynamic Block Templates

    1. Rebuild the Blocks:
      • Run your build command to ensure the updated dynamic blocks are properly loaded.
    npm run build
    1. Test in the Editor:
      • Add the Welcome Block or Project Block to a post or page.
      • Adjust the settings (like project status) or log in with different user roles to see how the content adapts.
    2. Check the Front-End Display:
      • Preview the post or page on the front end to ensure that the dynamic adjustments are functioning as expected.

    Best Practices for Dynamic Block Templates

    1. Use Dynamic Templates for Personalization: Leverage user roles, metadata, and other criteria to deliver tailored content to different user groups.
    2. Test Across User Scenarios: Ensure that your dynamic templates function correctly for different user roles and metadata states.
    3. Keep Logic Manageable: Avoid overly complex logic within your block’s edit function. Use helper functions to keep the code clean and maintainable.

    Conclusion: Building Interactive Experiences with Dynamic Templates

    Dynamic block templates allow you to create highly customized content experiences in Gutenberg. Whether you’re tailoring messages based on user roles, adjusting content based on metadata, or creating interactive layouts, dynamic templates enable you to deliver more engaging and relevant content.

    In this article, you’ve learned how to:

    • Create dynamic templates that adjust based on user roles.
    • Use custom metadata to change block content.
    • Implement dynamic behavior with the WordPress data store.

    In Day 29, we’ll explore optimizing block performance to ensure that custom blocks load quickly and efficiently in the Block Editor and on the front end.

  • Day 27: Creating Custom Block Collections in Gutenberg

    Introduction

    Welcome to Day 27 of the Gutenberg development series! Today, we’ll cover custom block collections, a method of organizing related blocks together in the WordPress Block Editor. By creating a custom block collection, you can group similar blocks under a single category, making it easier for users to find the blocks they need and improving the overall user experience in the editor.

    In this guide, you’ll learn how to:

    • Register custom block categories.
    • Group related blocks into collections.
    • Improve block discoverability and usability in the Block Editor.

    What are Custom Block Collections in Gutenberg?

    Custom block collections are a way to group blocks that share a common purpose or design into a single category in the Block Editor. This makes it easier for users to find blocks that serve similar functions or fit within a particular theme. For example, you might create a Marketing collection that includes blocks for call-to-action buttons, promotional banners, and testimonials.

    Block collections are particularly useful for:

    • Theming: Group blocks that match a specific design or branding style.
    • Functionality: Organize blocks by their role, like Content Blocks, Layout Blocks, or Social Media Blocks.
    • Plugin Integration: Group blocks created by a plugin under a branded category for easy access.

    Step 1: Creating a Custom Block Category

    Let’s start by creating a custom category for My Theme Blocks, which will include all the custom blocks we’ve built throughout this series.

    1. Register a Custom Category

    In your theme’s functions.php file or a custom plugin, use the block_categories_all filter to add a custom block category.

    function my_theme_register_block_category( $categories ) {
    return array_merge(
        array(
            array(
                'slug'  => 'my-theme-blocks',
                'title' => __( 'My Theme Blocks', 'my-theme' ),
            ),
        ),
        $categories
    );
}
add_filter( 'block_categories_all', 'my_theme_register_block_category', 10, 1 );

    Explanation:

    • block_categories_all: This filter allows you to add custom categories to the block inserter in the WordPress Block Editor.
    • array_merge: Adds the new category to the existing list of categories.
    • slug: The unique identifier for the category.
    • title: The label that will be displayed in the Block Editor.

    Step 2: Assign Blocks to the Custom Category

    Now that we’ve created a custom category, let’s assign some of our custom blocks, like the Testimonial Block and Button Block, to this new category.

    1. Update the Block Registration

    For each block you want to include in the custom category, update the category parameter in its registration:

    registerBlockType('my-theme/testimonial-block', {
    title: 'Testimonial Block',
    icon: 'format-quote',
    category: 'my-theme-blocks', // Assign to custom category
    attributes: {
        content: {
            type: 'string',
        },
        author: {
            type: 'string',
        },
    },
    edit: ({ attributes, setAttributes }) => {
        // Block edit function
    },
    save: ({ attributes }) => {
        // Block save function
    },
});

registerBlockType('my-theme/button-block', {
    title: 'Button Block',
    icon: 'button',
    category: 'my-theme-blocks', // Assign to custom category
    attributes: {
        label: {
            type: 'string',
            default: 'Click Me',
        },
    },
    edit: ({ attributes, setAttributes }) => {
        // Block edit function
    },
    save: ({ attributes }) => {
        // Block save function
    },
});

    Explanation:

    • category: Set to 'my-theme-blocks' to ensure that the block appears under the My Theme Blocks category in the Block Editor.

    Step 3: Testing the Custom Block Collection

    After registering the custom category and assigning blocks to it, let’s test it in the WordPress Block Editor.

    1. Rebuild the Blocks:
      • Run your build command to ensure the updated block registration is properly loaded.
    npm run build
    1. Test in the Editor:
      • Open a new or existing post in the Block Editor.
      • Click the + icon to add a new block.
      • Navigate to the My Theme Blocks category in the block inserter.
      • Verify that your Testimonial Block, Button Block, and any other assigned blocks appear under this category.
    2. Insert and Customize Blocks:
      • Insert the blocks from your custom category into the post.
      • Confirm that they function as expected and are easy to find.

    Step 4: Enhancing the Block Collection with Block Variations

    To provide users with more options, you can also add block variations within the same collection, making it even easier for them to select the right style or configuration.

    1. Add Variations to Blocks

    For example, let’s add a variation for the Testimonial Block that includes a different layout:

    wp.blocks.registerBlockVariation('my-theme/testimonial-block', {
    name: 'compact-testimonial',
    title: 'Compact Testimonial',
    description: 'A more compact version of the testimonial block.',
    icon: 'editor-quote',
    attributes: {
        className: 'compact-testimonial',
    },
});

    Explanation:

    • registerBlockVariation: Adds a new variation of the Testimonial Block, giving users an option to select a more compact style directly from the block settings.

    Step 5: Customizing Block Previews in the Editor

    To improve the user experience even further, you can add custom previews for your blocks in the inserter.

    1. Provide a Block Preview

    Update the block registration to include a example key with a sample of the block’s output:

    registerBlockType('my-theme/button-block', {
    title: 'Button Block',
    icon: 'button',
    category: 'my-theme-blocks',
    attributes: {
        label: {
            type: 'string',
            default: 'Click Me',
        },
    },
    example: {
        attributes: {
            label: 'Example Button',
        },
    },
    edit: ({ attributes, setAttributes }) => {
        // Block edit function
    },
    save: ({ attributes }) => {
        // Block save function
    },
});

    Explanation:

    • example: The example key provides a preview in the block inserter, showing users what the block will look like when inserted.

    Best Practices for Custom Block Collections

    1. Group Blocks Logically: Organize blocks into collections that make sense for your users, such as grouping all content blocks together or creating a category for layout blocks.
    2. Use Descriptive Category Names: Ensure that the category name is clear and describes the purpose or theme of the blocks, making it easy for users to find the right blocks.
    3. Provide Previews: Adding custom previews helps users quickly understand what each block does before inserting it into their content.

    Conclusion: Organizing Blocks with Custom Collections

    Custom block collections make it easier for users to find and use related blocks, enhancing the overall editing experience in WordPress. By grouping blocks into categories, you can improve discoverability, streamline content creation, and ensure that blocks are organized in a logical way.

    In this article, you’ve learned how to:

    • Create custom block categories in the Block Editor.
    • Assign blocks to specific categories for better organization.
    • Enhance the user experience with variations and block previews.

    In Day 28, we’ll explore creating dynamic block templates, allowing you to create templates that adjust based on user input or conditions.

  • Day 26: Building Custom Templates in Gutenberg

    Introduction

    Welcome to Day 26 of the Gutenberg development series! Today, we’ll focus on custom templates, which allow you to define the structure of a post or page. By providing predefined templates, you can ensure that specific content layouts are consistent across your website. This is especially useful for custom post types, landing pages, and specific layouts that require a particular block structure.

    In this guide, you’ll learn how to:

    • Create and register custom templates for posts and pages.
    • Define block layouts that users can start with.
    • Use custom templates with custom post types for better content management.

    What are Custom Templates in Gutenberg?

    Custom templates in Gutenberg allow you to define the default structure of a page or post using blocks. This ensures that users start with a specific layout, making content creation faster and more consistent. For example, you might create a template for a portfolio post type that includes a featured image, gallery, and testimonial sections.

    Custom templates are especially valuable for:

    • Custom Post Types: Use predefined templates for specific content types like portfolios, testimonials, or products.
    • Landing Pages: Create consistent layouts for sales or marketing pages.
    • Content Structure: Ensure that certain elements like headers, images, or call-to-action blocks are always included in specific pages.

    Step 1: Creating a Basic Custom Template for Pages

    Let’s start by creating a custom template for About pages, with predefined blocks for a heading, an image, and a text area.

    1. Register the Custom Template

    In your theme’s functions.php file or a custom plugin, use the register_post_type function to add a template to the default Page post type.

    function my_theme_register_custom_templates() {
    $post_type_object = get_post_type_object( 'page' );
    if ( ! $post_type_object ) {
        return;
    }

    $post_type_object->template = array(
        array( 'core/heading', array(
            'placeholder' => 'Enter your page title...',
            'level' => 1,
        ) ),
        array( 'core/image', array() ),
        array( 'core/paragraph', array(
            'placeholder' => 'Add a description or introduction here...',
        ) ),
    );

    $post_type_object->template_lock = 'all'; // Prevents users from removing required blocks
}
add_action( 'init', 'my_theme_register_custom_templates' );

    Explanation:

    • Template: The template parameter defines an array of blocks that will be added by default when creating a new Page. This template includes a Heading, an Image, and a Paragraph.
    • template_lock: The 'all' value locks the template, preventing users from removing the blocks but still allowing them to edit the content.

    Step 2: Using Custom Templates with Custom Post Types

    Custom templates are even more powerful when used with custom post types. Let’s create a Portfolio custom post type that includes a predefined template for showcasing projects.

    1. Register the Portfolio Custom Post Type

    Add the following code to register the Portfolio post type with a custom template:

    function my_theme_register_portfolio_post_type() {
    register_post_type( 'portfolio', array(
        'label'         => __( 'Portfolio', 'my-theme' ),
        'public'        => true,
        'has_archive'   => true,
        'show_in_rest'  => true,
        'supports'      => array( 'title', 'editor', 'thumbnail' ),
        'template'      => array(
            array( 'core/heading', array(
                'placeholder' => 'Project Title',
                'level' => 2,
            ) ),
            array( 'core/image', array() ),
            array( 'core/paragraph', array(
                'placeholder' => 'Write a brief overview of the project...',
            ) ),
            array( 'core/gallery', array() ),
            array( 'core/quote', array(
                'placeholder' => 'Client testimonial here...',
            ) ),
        ),
        'template_lock' => 'insert', // Users can add more blocks but can't remove the predefined ones
    ) );
}
add_action( 'init', 'my_theme_register_portfolio_post_type' );

    Explanation:

    • Portfolio Post Type: Registers a new post type called Portfolio.
    • Template: Predefines a layout with a Heading, Image, Paragraph, Gallery, and Quote block.
    • template_lock: The 'insert' value allows users to add new blocks but prevents them from removing the default template blocks.

    Step 3: Modifying Templates in the Block Editor

    Users can modify the predefined templates when creating or editing a post if the template is not locked. Let’s adjust the template lock settings for more flexibility.

    1. Adjust Template Lock for Flexibility

    Update the template lock setting to allow users to remove blocks if needed:

    'post_type_object->template_lock = false;'

    Explanation:

    • No Lock: By setting template_lock to false, users can remove or rearrange blocks, providing them with complete flexibility while still starting with a suggested structure.

    Step 4: Testing Custom Templates in the Editor

    After registering custom templates, it’s important to test them in the Block Editor.

    1. Rebuild Your Theme:
      • Ensure your theme or custom plugin is active with the updated template code.
    2. Test in the Editor:
      • Create a new Page or Portfolio post.
      • Verify that the predefined blocks are automatically added when creating the new post.
      • Edit the content to ensure that it’s user-friendly and meets the design needs.
    3. Check the Front-End Display:
      • Preview the post or page on the front end to see how the template layout appears to visitors.

    Step 5: Exporting Templates for Use on Other Sites

    You can export custom templates to reuse them on other WordPress sites.

    1. Export Template as JSON
      • Copy the template array code from your functions.php or custom plugin and save it as a JSON file.
      • To import the template on another site, paste the JSON into the new site’s functions.php or custom plugin.

    Best Practices for Custom Templates

    1. Use Templates for Consistency: Use custom templates to ensure that specific content elements remain consistent across posts or pages, such as header structures or promotional sections.
    2. Lock Templates Appropriately: Use template_lock when you need to enforce certain layout elements, and leave it unlocked when flexibility is more important.
    3. Organize by Post Type: Define different templates for various custom post types to tailor content creation for each type.

    Conclusion: Simplifying Content Creation with Custom Templates

    Custom templates are a powerful feature in Gutenberg that streamline the content creation process by providing a predefined starting point. Whether you’re building templates for custom post types, landing pages, or specific content layouts, they help maintain consistency and save time for users.

    In this article, you’ve learned how to:

    • Create and register custom templates for posts and pages.
    • Use templates with custom post types to provide structured content.
    • Adjust template lock settings for more flexibility in the editor.

    In Day 27, we’ll explore custom block collections, where you can group related blocks together for better organization in the Block Editor.

  • Day 25: Building Custom Block Patterns in Gutenberg

    Introduction

    Welcome to Day 25 of the Gutenberg development series! Today, we’ll dive into block patterns, a powerful feature in Gutenberg that allows you to create pre-designed layouts that users can add to their posts and pages with a single click. Block patterns are perfect for building common content layouts like hero sections, testimonials, pricing tables, and more, without needing to start from scratch each time.

    In this guide, you’ll learn how to:

    • Create and register custom block patterns.
    • Use block patterns to streamline content creation.
    • Organize and categorize patterns for better usability.

    What are Block Patterns in Gutenberg?

    Block patterns are pre-configured groups of blocks that can be inserted into the WordPress editor with one click. They allow you to save time by offering reusable layouts for common content structures. For example, you might create a pattern for a Testimonials Section or a Two-Column Layout with images and text.

    Block patterns are particularly useful for:

    • Speeding up Content Creation: Users can add complex layouts without needing to build them block by block.
    • Maintaining Consistency: Patterns ensure that design elements stay consistent across different pages.
    • Enhancing User Experience: Users can quickly access the patterns they need, making the editing process smoother.

    Step 1: Creating a Basic Block Pattern

    Let’s create a simple Hero Section pattern that includes a heading, paragraph, and a button.

    1. Register the Block Pattern

    In your theme’s functions.php file or a custom plugin, use the register_block_pattern function to define your pattern.

    function my_theme_register_block_patterns() {
    register_block_pattern(
        'my-theme/hero-section',
        array(
            'title'       => __( 'Hero Section', 'my-theme' ),
            'description' => _x( 'A hero section with a heading, paragraph, and button.', 'Block pattern description', 'my-theme' ),
            'content'     => '<!-- wp:group -->
                                <div class="wp-block-group">
                                    <h2>Welcome to Our Website</h2>
                                    <p>This is a simple hero section with a call to action.</p>
                                    <!-- wp:button -->
                                    <div class="wp-block-button">
                                        <a class="wp-block-button__link">Get Started</a>
                                    </div>
                                    <!-- /wp:button -->
                                </div>
                              <!-- /wp:group -->',
            'categories'  => array( 'my-theme-patterns' ),
        )
    );
}
add_action( 'init', 'my_theme_register_block_patterns' );

    Explanation:

    • register_block_pattern: This function registers a new block pattern with a unique name and settings.
    • title: The name displayed in the block pattern library.
    • description: A brief description of what the pattern includes.
    • content: The HTML content of the pattern. This is a group of blocks wrapped in standard Gutenberg block markup.
    • categories: Categorizes the pattern for easier access in the pattern library.

    Step 2: Organizing Block Patterns into Categories

    To make it easier for users to find your patterns, you can create custom categories for them.

    1. Register a Custom Category

    Add a new category for your block patterns in the same function:

    function my_theme_register_block_pattern_categories() {
    register_block_pattern_category(
        'my-theme-patterns',
        array( 'label' => __( 'My Theme Patterns', 'my-theme' ) )
    );
}
add_action( 'init', 'my_theme_register_block_pattern_categories' );

    Explanation:

    • register_block_pattern_category: This function defines a new category for your block patterns, which will appear in the Block Editor under the specified label.
    • Custom Categories: Helps users find your patterns more easily, especially if you have multiple patterns for different purposes.
    register_block_pattern(
    'my-theme/two-column-layout',
    array(
        'title'       => __( 'Two-Column Layout', 'my-theme' ),
        'description' => _x( 'A layout with two columns, each containing an image and text.', 'Block pattern description', 'my-theme' ),
        'content'     => '<!-- wp:columns -->
                            <div class="wp-block-columns">
                                <!-- wp:column -->
                                <div class="wp-block-column">
                                    <img src="https://via.placeholder.com/400" alt="Placeholder Image" />
                                    <p>Column 1 content goes here.</p>
                                </div>
                                <!-- /wp:column -->
                                <!-- wp:column -->
                                <div class="wp-block-column">
                                    <img src="https://via.placeholder.com/400" alt="Placeholder Image" />
                                    <p>Column 2 content goes here.</p>
                                </div>
                                <!-- /wp:column -->
                            </div>
                          <!-- /wp:columns -->',
        'categories'  => array( 'my-theme-patterns' ),
    )
);

    Explanation:

    • Multiple Patterns: You can register as many patterns as you need, each with its own title, description, and content.
    • Two-Column Layout: This pattern uses the Columns Block to create a side-by-side layout, making it perfect for showcasing images or text.

    Step 4: Using Block Patterns in the Editor

    Once registered, your block patterns are available in the WordPress Block Editor.

    1. Access the Block Patterns
      • Go to any post or page in the WordPress Block Editor.
      • Click the + icon to open the block inserter.
      • Navigate to the Patterns tab.
      • Search for your registered pattern categories, such as My Theme Patterns.
      • Click on a pattern to insert it into your content.
    2. Customize the Pattern
      • Once inserted, you can customize the content of the pattern just like any other blocks in the editor.
      • Adjust text, images, or buttons to fit the specific needs of your page.

    Step 5: Exporting and Importing Block Patterns

    You can export block patterns to use them on other sites or share with other users.

    1. Export a Block Pattern
      • To export a pattern, you can copy the HTML structure from the content section in functions.php and save it as a text file.
      • You can then re-register it on another site using the same method.
    2. Import a Block Pattern
      • To import, simply use the register_block_pattern function on the new site, using the content you saved from the previous pattern.

    Example: Sharing a Hero Section Pattern

    You might create a Hero Section pattern for a client’s site and want to use the same layout on a different client’s website. By exporting and importing the pattern, you can replicate the design quickly.

    Best Practices for Block Patterns

    1. Keep Patterns Modular: Focus on creating small, reusable patterns that can be combined in different ways to build complex layouts.
    2. Provide Descriptive Titles: Use clear and descriptive titles for your patterns to help users quickly understand their purpose.
    3. Use Default Placeholders: Use placeholder images or text to make it clear where users should replace content with their own.

    Conclusion: Speed Up Content Creation with Block Patterns

    Block patterns are a powerful way to streamline content creation in Gutenberg, allowing users to add complex layouts with ease. By building a library of reusable patterns, you can save time, ensure consistency, and offer a better editing experience.

    In this article, you’ve learned how to:

    • Create and register custom block patterns.
    • Organize patterns into categories for easier access.
    • Use block patterns to enhance the user experience in the WordPress Block Editor.

    In Day 26, we’ll explore building custom templates in Gutenberg, where you can pre-define the structure of entire posts or pages.

  • Day 24: Styling Blocks with Custom CSS and Properties in Gutenberg

    Introduction

    Welcome to Day 24 of the Gutenberg development series! Today, we’ll focus on custom block styles and CSS custom properties, which allow you to add unique visual styles to your blocks. This can include custom classes, stylesheets, and even dynamic CSS variables that users can adjust through the editor.

    In this guide, you’ll learn how to:

    • Define custom styles for Gutenberg blocks.
    • Use CSS custom properties for dynamic styling.
    • Apply custom classes and stylesheets to blocks.

    What are Custom Block Styles in Gutenberg?

    Custom block styles allow you to provide alternative visual styles for a block, which users can select directly from the block’s settings. This is great for offering different layouts, color schemes, or design variations without needing to create entirely new blocks.

    CSS custom properties (also known as CSS variables) enable you to define reusable values for colors, fonts, and other styles that can be adjusted dynamically, providing a more flexible approach to styling blocks.

    Step 1: Adding Custom Block Styles

    Let’s create custom styles for a Button Block that users can select from the block settings.

    1. Register Custom Block Styles

    In your block registration file (e.g., blocks/button-block.js), use the registerBlockStyle function to define the styles.

    import { registerBlockType, registerBlockStyle } from '@wordpress/blocks';
import { __ } from '@wordpress/i18n';

registerBlockType('my-theme/button-block', {
    title: __('Button Block'),
    icon: 'button',
    category: 'my-custom-category',
    attributes: {
        label: {
            type: 'string',
            default: __('Click Me'),
        },
    },
    edit: ({ attributes, setAttributes }) => {
        const { label } = attributes;

        return (
            <button className="default-button">
                {label}
            </button>
        );
    },
    save: ({ attributes }) => {
        const { label } = attributes;

        return (
            <button className="default-button">
                {label}
            </button>
        );
    },
});

// Register custom styles for the Button Block
registerBlockStyle('my-theme/button-block', {
    name: 'outline',
    label: __('Outline'),
});

registerBlockStyle('my-theme/button-block', {
    name: 'rounded',
    label: __('Rounded'),
});

    Explanation:

    • registerBlockStyle: This function registers additional styles for the block, allowing users to choose between different styles like Outline and Rounded from the block settings.
    • name: Unique identifier for the custom style.
    • label: The name displayed in the block’s style options.

    Step 2: Styling the Custom Block Styles with CSS

    Now, let’s add custom CSS for the Outline and Rounded styles in your theme’s style.css file:

    /* Default Button Style */
.default-button {
    background-color: #0073aa;
    color: #ffffff;
    padding: 10px 20px;
    border: none;
    border-radius: 3px;
    font-weight: bold;
}

/* Outline Style */
.is-style-outline {
    background-color: transparent;
    color: #0073aa;
    border: 2px solid #0073aa;
}

/* Rounded Style */
.is-style-rounded {
    border-radius: 20px;
}

    Explanation:

    • .is-style-outline: This class is automatically added when users select the Outline style in the editor, applying the transparent background and border.
    • .is-style-rounded: This class is applied when the Rounded style is selected, giving the button a rounded shape.

    Step 3: Using CSS Custom Properties for Dynamic Styling

    To make your block styles more flexible, you can use CSS custom properties for colors, padding, and other styles.

    1. Define CSS Variables in the Stylesheet

    Add the following CSS custom properties to your style.css file:

    :root {
    --button-bg-color: #0073aa;
    --button-text-color: #ffffff;
    --button-border-radius: 3px;
}

.default-button {
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    border-radius: var(--button-border-radius);
    padding: 10px 20px;
}

.is-style-outline {
    background-color: transparent;
    color: var(--button-bg-color);
    border: 2px solid var(--button-bg-color);
}

.is-style-rounded {
    border-radius: 20px;
}

    Explanation:

    • CSS Variables: The :root selector defines custom properties that can be reused throughout the stylesheet. This allows you to change values like --button-bg-color or --button-border-radius from a central location.
    • Dynamic Colors: Use var(--property-name) to apply the value of a CSS variable, making it easy to update the design without changing multiple rules.

    Step 4: Adding Color Controls to Modify CSS Variables

    To give users control over the CSS variables, you can add color pickers in the block’s settings.

    1. Add Color Pickers in InspectorControls

    Update your Button Block to include color controls that adjust the custom properties:

    import { InspectorControls, ColorPalette } from '@wordpress/block-editor';
import { PanelBody } from '@wordpress/components';

registerBlockType('my-theme/button-block', {
    title: __('Button Block'),
    icon: 'button',
    category: 'my-custom-category',
    attributes: {
        label: {
            type: 'string',
            default: __('Click Me'),
        },
        backgroundColor: {
            type: 'string',
            default: '#0073aa',
        },
        textColor: {
            type: 'string',
            default: '#ffffff',
        },
    },
    edit: ({ attributes, setAttributes }) => {
        const { label, backgroundColor, textColor } = attributes;

        const style = {
            '--button-bg-color': backgroundColor,
            '--button-text-color': textColor,
        };

        return (
            <>
                <InspectorControls>
                    <PanelBody title={__('Button Colors')}>
                        <p>{__('Background Color')}</p>
                        <ColorPalette
                            value={backgroundColor}
                            onChange={(color) => setAttributes({ backgroundColor: color })}
                        />
                        <p>{__('Text Color')}</p>
                        <ColorPalette
                            value={textColor}
                            onChange={(color) => setAttributes({ textColor: color })}
                        />
                    </PanelBody>
                </InspectorControls>
                <button className="default-button" style={style}>
                    {label}
                </button>
            </>
        );
    },
    save: ({ attributes }) => {
        const { label, backgroundColor, textColor } = attributes;

        const style = {
            '--button-bg-color': backgroundColor,
            '--button-text-color': textColor,
        };

        return (
            <button className="default-button" style={style}>
                {label}
            </button>
        );
    },
});

    Explanation:

    • Dynamic Styles: The style object dynamically sets CSS variables, allowing users to control the background and text colors of the button.
    • ColorPalette: This component provides a color picker in the sidebar, enabling users to select custom colors for the button.

    Step 5: Testing the Custom Styles and Controls

    1. Rebuild the Block:
      • Run your build command to ensure the block and its custom styles are properly loaded.
    npm run build
    1. Test in the Block Editor:
      • Add the Button Block to a post or page.
      • Use the style options to switch between the Default, Outline, and Rounded styles.
      • Adjust the background and text colors using the sidebar controls.
    2. Check the Front-End Display:
      • Preview the post or page on the front end to ensure that the custom styles and dynamic colors are applied correctly.

    Best Practices for Custom Block Styles

    1. Use Descriptive Style Names: Ensure that style names like Outline or Rounded clearly describe their visual effect, making it easier for users to choose the right style.
    2. Leverage CSS Variables: Use custom properties to make your styles more maintainable and flexible, allowing users to customize colors and other styles through controls.
    3. Test Across Devices: Ensure that your custom styles and CSS properties work consistently across different devices and screen sizes.

    Conclusion: Styling Blocks with Custom CSS and Properties

    Custom block styles and CSS properties give you the power to offer versatile design options within Gutenberg. By defining different styles and allowing users to adjust key properties, you can create blocks that adapt to any design requirement while maintaining a consistent look and feel. This flexibility helps you build more user-friendly and visually appealing blocks, making your WordPress site easier to customize for any user.

    In this article, you’ve learned how to:

    • Create custom styles for Gutenberg blocks using registerBlockStyle.
    • Define and use CSS custom properties for dynamic styling.
    • Allow users to modify styles through the InspectorControls.

    In Day 25, we’ll explore building block patterns in Gutenberg, a feature that enables users to add pre-designed block layouts with a single click.

  • Day 23: Adding Custom Block Controls in Gutenberg

    Introduction

    Welcome to Day 23 of the Gutenberg development series! Today, we’ll focus on custom block controls, which allow you to add settings and options directly to your custom blocks. These controls can be added to the block’s sidebar or as inline controls in the block toolbar, giving users the ability to customize aspects like colors, alignment, text size, and more.

    In this guide, you’ll learn how to:

    • Add block controls using the InspectorControls component.
    • Create inline toolbar controls for quick settings.
    • Customize block attributes based on user input.

    What are Custom Block Controls in Gutenberg?

    Custom block controls provide users with additional options to customize the appearance and behavior of blocks. These controls can be added to:

    • Inspector Controls: Sidebar settings where users can adjust block-specific options like colors, sizes, and alignment.
    • Block Toolbar: Inline settings for quick access to options like alignment, boldness, or text styling.

    By adding custom controls, you enhance the flexibility of your blocks, allowing users to tailor the block to their specific needs without needing to write code.

    Step 1: Adding Inspector Controls for Sidebar Settings

    Let’s start by adding Inspector Controls to a Testimonial Block, allowing users to adjust the text color and background color.

    1. Register the Block with Inspector Controls

    In your block registration file (e.g., blocks/testimonial-block.js), use the InspectorControls component to add sidebar settings.

    import { registerBlockType } from '@wordpress/blocks';
import { InspectorControls, ColorPalette } from '@wordpress/block-editor';
import { PanelBody, RangeControl } from '@wordpress/components';
import { __ } from '@wordpress/i18n';

registerBlockType('my-theme/testimonial-block', {
    title: __('Testimonial Block'),
    icon: 'format-quote',
    category: 'my-custom-category',
    attributes: {
        content: {
            type: 'string',
            default: '',
        },
        textColor: {
            type: 'string',
            default: '#000000',
        },
        backgroundColor: {
            type: 'string',
            default: '#ffffff',
        },
    },
    edit: ({ attributes, setAttributes }) => {
        const { content, textColor, backgroundColor } = attributes;

        return (
            <>
                <InspectorControls>
                    <PanelBody title={__('Text Settings')}>
                        <p>{__('Text Color')}</p>
                        <ColorPalette
                            value={textColor}
                            onChange={(color) => setAttributes({ textColor: color })}
                        />
                        <p>{__('Background Color')}</p>
                        <ColorPalette
                            value={backgroundColor}
                            onChange={(color) => setAttributes({ backgroundColor: color })}
                        />
                    </PanelBody>
                </InspectorControls>
                <textarea
                    value={content}
                    onChange={(event) => setAttributes({ content: event.target.value })}
                    style={{ color: textColor, backgroundColor }}
                    placeholder={__('Write your testimonial...')}
                />
            </>
        );
    },
    save: ({ attributes }) => {
        const { content, textColor, backgroundColor } = attributes;

        return (
            <div style={{ color: textColor, backgroundColor }}>
                <p>{content}</p>
            </div>
        );
    },
});

    Explanation:

    • InspectorControls: This component allows you to add settings panels in the sidebar of the block editor.
    • ColorPalette: Provides a color picker that allows users to select a text and background color.
    • PanelBody: Wraps the color controls within a collapsible panel in the sidebar for better organization.

    Step 2: Adding Inline Toolbar Controls

    Now let’s add inline controls to the block toolbar, such as a text alignment option.

    1. Add Text Alignment Controls to the Block Toolbar

    Update your Testimonial Block to include text alignment options in the block toolbar.

    import { BlockControls, AlignmentToolbar } from '@wordpress/block-editor';

registerBlockType('my-theme/testimonial-block', {
    title: __('Testimonial Block'),
    icon: 'format-quote',
    category: 'my-custom-category',
    attributes: {
        content: {
            type: 'string',
            default: '',
        },
        alignment: {
            type: 'string',
            default: 'left',
        },
        textColor: {
            type: 'string',
            default: '#000000',
        },
        backgroundColor: {
            type: 'string',
            default: '#ffffff',
        },
    },
    edit: ({ attributes, setAttributes }) => {
        const { content, alignment, textColor, backgroundColor } = attributes;

        return (
            <>
                <BlockControls>
                    <AlignmentToolbar
                        value={alignment}
                        onChange={(newAlignment) => setAttributes({ alignment: newAlignment })}
                    />
                </BlockControls>
                <InspectorControls>
                    <PanelBody title={__('Text Settings')}>
                        <p>{__('Text Color')}</p>
                        <ColorPalette
                            value={textColor}
                            onChange={(color) => setAttributes({ textColor: color })}
                        />
                        <p>{__('Background Color')}</p>
                        <ColorPalette
                            value={backgroundColor}
                            onChange={(color) => setAttributes({ backgroundColor: color })}
                        />
                    </PanelBody>
                </InspectorControls>
                <textarea
                    value={content}
                    onChange={(event) => setAttributes({ content: event.target.value })}
                    style={{ textAlign: alignment, color: textColor, backgroundColor }}
                    placeholder={__('Write your testimonial...')}
                />
            </>
        );
    },
    save: ({ attributes }) => {
        const { content, alignment, textColor, backgroundColor } = attributes;

        return (
            <div style={{ textAlign: alignment, color: textColor, backgroundColor }}>
                <p>{content}</p>
            </div>
        );
    },
});

    Explanation:

    • BlockControls: This component allows you to add controls to the block toolbar.
    • AlignmentToolbar: A pre-built component that adds text alignment options (left, center, right) to the block toolbar.

    Step 3: Testing and Using Custom Block Controls

    After adding custom controls, it’s important to test them in the Block Editor to ensure they work correctly.

    1. Rebuild the Block:
    • Run your build command to ensure the block and its controls are properly registered in the Block Editor.
    npm run build
    1. Test in the Editor:
      • Add the Testimonial Block to a post or page.
      • Use the Text Color and Background Color options in the sidebar to change the appearance of the testimonial.
      • Use the Alignment Toolbar to adjust the text alignment.
    2. Check the Front-End Display:
      • Preview the post or page on the front end to ensure that the selected colors and alignment are applied correctly.

    Best Practices for Custom Block Controls

    1. Organize Controls with Panels: Use PanelBody inside InspectorControls to group related settings, making it easier for users to find and adjust options.
    2. Use Defaults Wisely: Provide sensible default values for attributes like colors and alignment to ensure that blocks look good right out of the box.
    3. Test for Accessibility: Ensure that all control labels and inputs are accessible, with proper labels and descriptions for screen reader users.

    Conclusion: Enhancing Blocks with Custom Controls

    Adding custom block controls in Gutenberg allows you to provide users with a more powerful and flexible editing experience. Whether it’s adjusting colors, alignment, or any other block-specific setting, these controls help users customize content to their needs directly within the editor.

    In this article, you’ve learned how to:

    • 1. Use InspectorControls to add sidebar settings.
    • 2. Add inline controls with BlockControls for quick access.
    • 3. Create a more dynamic and user-friendly block with custom settings.

    In Day 24, we’ll explore block styles and CSS custom properties, allowing you to further enhance the visual appearance of your blocks.

  • Day 22: Mastering Reusable Blocks in Gutenberg

    Introduction

    Welcome to Day 22 of the Gutenberg development series! Today, we’ll cover reusable blocks, a feature in Gutenberg that allows users to save a block or a group of blocks for reuse across different posts and pages. This feature is particularly useful for creating templates, call-to-action buttons, or any block-based content that you want to use multiple times without recreating it from scratch.

    In this guide, you’ll learn how to:

    • Create reusable blocks in the Block Editor.
    • Manage reusable blocks for easy updates.
    • Convert reusable blocks back into regular blocks when needed.

    What are Reusable Blocks in Gutenberg?

    Reusable blocks are blocks that can be saved and reused across multiple posts, pages, or custom post types in WordPress. This is ideal for content elements that remain the same throughout the website, like:

    • Call-to-action sections
    • Promotional banners
    • Custom layouts for products or testimonials
    • Predefined text snippets or styled content

    Reusable blocks ensure consistency, as updates made to a reusable block will automatically apply to all instances where that block is used.

    Step 1: Creating a Reusable Block

    Let’s walk through the process of creating a reusable block in the Block Editor.

    1. Add the Block in the Editor
      • Go to a post or page in the WordPress Block Editor.
      • Create or select the block (or group of blocks) that you want to save as reusable.
    2. Convert to Reusable Block
      • Click on the block options (the three dots in the block toolbar).
      • Select “Create Reusable Block” from the dropdown menu.
      • Give your reusable block a descriptive name that will make it easy to identify.
    3. Save the Reusable Block
      • Click Save after naming the block. It will now be available in the Reusable tab in the block inserter for easy access.

    Example Use Case: Call-to-Action Button

    You can save a Call-to-Action Button as a reusable block, allowing you to place it on multiple pages. If you need to update the button’s text or link, you can do it once in the reusable block, and the changes will reflect everywhere the button is used.

    Step 2: Managing Reusable Blocks

    Once you’ve created reusable blocks, you can manage them directly from the Block Editor.

    1. Edit a Reusable Block
      • To edit a reusable block, insert it into a post or page and click on “Manage Reusable Blocks” in the block toolbar or go to Block Library > Reusable.
      • Make your changes, such as updating text, images, or styles.
      • Click Update to apply the changes. The updates will reflect in all instances where the reusable block is used.
    2. Manage Reusable Blocks from the Admin
      • Go to Reusable Blocks in the WordPress admin menu (under Blocks or Manage Reusable Blocks).
      • Here, you can edit, delete, or export reusable blocks for use on other sites.

    Example: Updating a Promotional Banner

    Imagine you have a Promotional Banner saved as a reusable block, and you need to update the sale details. By editing the reusable block, the new promotion will automatically appear on all pages where the banner is used.

    Step 3: Converting a Reusable Block Back to a Regular Block

    In some cases, you may want to convert a reusable block back into a regular block to make changes that only apply to a specific instance.

    1. Convert to Regular Block
      • Insert the reusable block into a post or page.
      • Click on the block options (three dots) in the toolbar.
      • Select “Convert to Regular Block”.
    2. Edit the Converted Block
      • The block will now behave like a normal block. Changes made to this block will not affect the original reusable block or other instances.

    Example: Customizing a Reusable Testimonial

    You might have a Testimonial Block saved as reusable but need to make a specific edit for one post. By converting it to a regular block, you can adjust the content without changing the original reusable version.

    Step 4: Exporting and Importing Reusable Blocks

    You can also export reusable blocks to use them on other WordPress sites or import them into your current site.

    1. Export a Reusable Block
      • Go to Reusable Blocks in the admin menu.
      • Click Export as JSON next to the reusable block you want to export.
      • Save the JSON file to your computer.
    2. Import a Reusable Block
      • Go to Reusable Blocks > Manage Reusable Blocks in the admin menu.
      • Click Import from JSON.
      • Select the JSON file of the reusable block you want to import.
      • Click Import to add the block to your site.

    Example: Reusing a Custom Block Layout on Multiple Sites

    If you’ve created a Custom Layout for a client, you can export the reusable block as a JSON file and import it into another client’s site, ensuring a consistent design.

    Best Practices for Using Reusable Blocks

    1. Use for Repetitive Content: Save time by using reusable blocks for content that appears across multiple pages, such as headers, footers, or call-to-action sections.
    2. Name Reusable Blocks Clearly: Give each reusable block a clear and descriptive name to make it easy to find in the block library.
    3. Test Before Updating: Before making major updates to a reusable block, test the changes to ensure they display correctly across all instances.

    Conclusion: Streamlining Content with Reusable Blocks

    Reusable blocks are a game-changer for managing consistent content in WordPress. By saving blocks for reuse, you can easily replicate elements across your site while maintaining flexibility to make global updates. This not only saves time but also ensures a consistent design and messaging throughout your website.

    In this article, you’ve learned how to:

    • Create and save reusable blocks in Gutenberg.
    • Manage and update reusable blocks for easy content control.
    • Convert reusable blocks back to regular blocks for custom edits.

    In Day 23, we’ll explore custom block controls, where you can add advanced customization options to your blocks.