zhongwei/gh-netresearch-claude-code-marketplace-skills-typo3-conformance

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Zhongwei Li aab6ef2415 Initial commit

2025-11-30 08:43:22 +08:00

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TYPO3 v13 Backend Module Modernization

Purpose: Comprehensive guide for modernizing TYPO3 backend modules to v13 LTS standards Source: Real-world modernization of nr_temporal_cache backend module (45/100 → 95/100 compliance) Target: TYPO3 v13.4 LTS with PSR-12, modern JavaScript, and accessibility compliance

Critical Compliance Issues

1. Extension Key Consistency

Problem: Mixed extension keys throughout templates and JavaScript breaks translations and routing

Common Violations:

Template translation keys using EXT:wrong_name/ instead of EXT:correct_name/
JavaScript alert messages with hardcoded wrong extension names
Variable substitution using wrong extension prefix

Detection:

# Find all extension key references
grep -rn "EXT:temporal_cache/" Resources/Private/Templates/
grep -rn "EXT:temporal_cache/" Resources/Public/JavaScript/

# Verify correct key in ext_emconf.php
grep "\$EM_CONF\[" ext_emconf.php

Example Violations:

<!-- WRONG: Using temporal_cache instead of nr_temporal_cache -->
<f:translate key="LLL:EXT:temporal_cache/Resources/Private/Language/locallang_mod.xlf:dashboard.title" />

<!-- CORRECT: Using proper extension key -->
<f:translate key="LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:dashboard.title" />

// WRONG: Hardcoded wrong extension name in alert
alert('Error in Temporal Cache extension');

// CORRECT: Use TYPO3 Notification API with correct name
Notification.error('Error', 'Failed in nr_temporal_cache');

Impact: Broken translations, 404 errors on static assets, module registration failures

Severity: 🔴 Critical - Breaks basic functionality

Fix Priority: Immediate - Fix before any other modernization work

2. JavaScript Modernization (ES6 Modules)

Problem: Inline JavaScript in templates is deprecated, not CSP-compliant, and hard to maintain

TYPO3 v13 Standard: All JavaScript must be ES6 modules loaded via PageRenderer

Before (DEPRECATED):

<!-- Resources/Private/Templates/Backend/TemporalCache/Content.html -->
<f:section name="Content">
    <!-- Template content -->
</f:section>

<f:section name="FooterAssets">
    <script type="text/javascript">
        // 68 lines of inline JavaScript
        document.addEventListener('DOMContentLoaded', function() {
            const selectAll = document.getElementById('select-all');
            const checkboxes = document.querySelectorAll('.content-checkbox');
            const harmonizeBtn = document.getElementById('harmonize-btn');

            selectAll.addEventListener('change', function(e) {
                checkboxes.forEach(cb => cb.checked = e.target.checked);
            });

            harmonizeBtn.addEventListener('click', function() {
                if (confirm('Really harmonize?')) {
                    // AJAX call with alert() feedback
                }
            });
        });
    </script>
</f:section>

After (MODERN v13):

Step 1: Create ES6 Module (Resources/Public/JavaScript/BackendModule.js)

/**
 * Backend module JavaScript for nr_temporal_cache
 * TYPO3 v13 ES6 module
 */
import Modal from '@typo3/backend/modal.js';
import Notification from '@typo3/backend/notification.js';

class TemporalCacheModule {
    constructor() {
        this.initializeEventListeners();
    }

    initializeEventListeners() {
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', () => this.init());
        } else {
            this.init();
        }
    }

    init() {
        this.initializeHarmonization();
        this.initializeKeyboardNavigation();
    }

    initializeHarmonization() {
        const selectAllCheckbox = document.getElementById('select-all');
        const contentCheckboxes = document.querySelectorAll('.content-checkbox');
        const harmonizeBtn = document.getElementById('harmonize-selected-btn');

        if (!harmonizeBtn) return;

        if (selectAllCheckbox) {
            selectAllCheckbox.addEventListener('change', (e) => {
                contentCheckboxes.forEach(checkbox => {
                    checkbox.checked = e.target.checked;
                });
                this.updateHarmonizeButton();
            });
        }

        contentCheckboxes.forEach(checkbox => {
            checkbox.addEventListener('change', () => this.updateHarmonizeButton());
        });

        harmonizeBtn.addEventListener('click', () => this.performHarmonization());
    }

    async performHarmonization() {
        const selectedUids = Array.from(document.querySelectorAll('.content-checkbox:checked'))
            .map(cb => parseInt(cb.dataset.uid));

        if (selectedUids.length === 0) return;

        const harmonizeBtn = document.getElementById('harmonize-selected-btn');
        const harmonizeUri = harmonizeBtn.dataset.actionUri;

        // Use TYPO3 Modal instead of confirm()
        Modal.confirm(
            'Confirm Harmonization',
            `Harmonize ${selectedUids.length} content elements?`,
            Modal.SeverityEnum.warning,
            [
                {
                    text: 'Cancel',
                    active: true,
                    btnClass: 'btn-default',
                    trigger: () => Modal.dismiss()
                },
                {
                    text: 'Harmonize',
                    btnClass: 'btn-warning',
                    trigger: () => {
                        Modal.dismiss();
                        this.executeHarmonization(harmonizeUri, selectedUids);
                    }
                }
            ]
        );
    }

    async executeHarmonization(uri, selectedUids) {
        try {
            const response = await fetch(uri, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ content: selectedUids, dryRun: false })
            });

            const data = await response.json();

            if (data.success) {
                // Use TYPO3 Notification API instead of alert()
                Notification.success('Harmonization Successful', data.message);
                setTimeout(() => window.location.reload(), 1500);
            } else {
                Notification.error('Harmonization Failed', data.message);
            }
        } catch (error) {
            Notification.error('Error', 'Failed to harmonize content: ' + error.message);
        }
    }

    initializeKeyboardNavigation() {
        document.addEventListener('keydown', (e) => {
            // Ctrl/Cmd + A: Select all
            if ((e.ctrlKey || e.metaKey) && e.key === 'a') {
                const selectAll = document.getElementById('select-all');
                if (selectAll && document.activeElement.tagName !== 'INPUT') {
                    e.preventDefault();
                    selectAll.checked = true;
                    selectAll.dispatchEvent(new Event('change'));
                }
            }
        });
    }
}

// Initialize and export
export default new TemporalCacheModule();

Step 2: Load Module in Controller (Classes/Controller/Backend/TemporalCacheController.php)

private function setupModuleTemplate(ModuleTemplate $moduleTemplate, string $currentAction): void
{
    $moduleTemplate->setTitle(
        $this->getLanguageService()->sL('LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:mlang_tabs_tab')
    );

    // Load JavaScript module
    $moduleTemplate->getPageRenderer()->loadJavaScriptModule(
        '@netresearch/nr-temporal-cache/backend-module.js'
    );

    // Add DocHeader buttons
    $this->addDocHeaderButtons($moduleTemplate, $currentAction);
    // ...
}

Step 3: Remove Inline JavaScript from Templates

<!-- Resources/Private/Templates/Backend/TemporalCache/Content.html -->
<f:section name="Content">
    <!-- Template content with data attributes for JavaScript -->
    <button
        type="button"
        class="btn btn-success"
        id="harmonize-selected-btn"
        disabled
        data-action="harmonize"
        data-action-uri="{harmonizeActionUri}"
        aria-label="{f:translate(key: '...:content.harmonize_selected')}">
        <core:icon identifier="actions-synchronize" size="small" />
        <f:translate key="LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:content.harmonize_selected" />
    </button>
</f:section>

<!-- FooterAssets section removed completely -->

Validation:

# Ensure NO inline JavaScript remains
grep -rn "FooterAssets" Resources/Private/Templates/
grep -rn "<script" Resources/Private/Templates/

# Verify ES6 module exists
ls -lh Resources/Public/JavaScript/BackendModule.js

# Check controller loads module
grep "loadJavaScriptModule" Classes/Controller/Backend/*.php

Impact: CSP compliance, better caching, maintainability, modern development patterns

Severity: 🟡 Important - Required for TYPO3 v13 compliance

3. Module Layout Pattern

Problem: Old Default.html layout is non-standard for TYPO3 v13

TYPO3 v13 Standard: Use dedicated Module.html layout for backend modules

Before (NON-STANDARD):

<!-- Resources/Private/Templates/Backend/TemporalCache/Dashboard.html -->
<f:layout name="Default" />

<f:section name="Content">
    <h1>Dashboard</h1>
    <!-- Content -->
</f:section>

After (MODERN v13):

Step 1: Create Module Layout (Resources/Private/Layouts/Module.html)

<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
      xmlns:be="http://typo3.org/ns/TYPO3/CMS/Backend/ViewHelpers"
      xmlns:core="http://typo3.org/ns/TYPO3/CMS/Core/ViewHelpers"
      data-namespace-typo3-fluid="true">

<f:be.pageRenderer />

<div class="module" data-module-name="temporal-cache">
    <f:render section="Before" optional="true" />

    <div class="module-body">
        <f:flashMessages />
        <f:render section="Content" />
    </div>

    <f:render section="After" optional="true" />
</div>

</html>

Step 2: Update All Templates

<!-- Resources/Private/Templates/Backend/TemporalCache/Dashboard.html -->
<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
      xmlns:core="http://typo3.org/ns/TYPO3/CMS/Core/ViewHelpers"
      data-namespace-typo3-fluid="true">

<f:layout name="Module" />

<f:section name="Content">
    <h1><f:translate key="LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:dashboard.title" /></h1>
    <!-- Content -->
</f:section>

</html>

Validation:

# Check all templates use Module layout
grep -n "f:layout name=" Resources/Private/Templates/Backend/**/*.html

# Verify Module.html exists
ls -l Resources/Private/Layouts/Module.html

# Ensure no Default.html dependencies
! grep -r "Default.html" Resources/Private/Templates/

Severity: 🟡 Important - Standard TYPO3 v13 pattern

4. DocHeader Component Integration

Problem: Backend modules should have standard DocHeader with refresh, shortcut, and action-specific buttons

TYPO3 v13 Standard: Use ButtonBar, IconFactory for DocHeader components

Before (MISSING):

// Classes/Controller/Backend/TemporalCacheController.php
private function setupModuleTemplate(ModuleTemplate $moduleTemplate, string $currentAction): void
{
    $moduleTemplate->setTitle('Temporal Cache');
    // No DocHeader buttons
}

After (MODERN v13):

Step 1: Add Required Imports

use TYPO3\CMS\Backend\Template\Components\ButtonBar;
use TYPO3\CMS\Core\Imaging\Icon;
use TYPO3\CMS\Core\Imaging\IconFactory;

Step 2: Inject IconFactory

public function __construct(
    private readonly ModuleTemplateFactory $moduleTemplateFactory,
    private readonly ExtensionConfiguration $extensionConfiguration,
    // ... other dependencies
    private readonly IconFactory $iconFactory  // ADD THIS
) {}

Step 3: Add DocHeader Buttons Method

private function addDocHeaderButtons(ModuleTemplate $moduleTemplate, string $currentAction): void
{
    if (!isset($this->uriBuilder)) {
        return; // Skip in tests
    }

    $buttonBar = $moduleTemplate->getDocHeaderComponent()->getButtonBar();

    // Refresh button (all actions)
    $refreshButton = $buttonBar->makeLinkButton()
        ->setHref($this->uriBuilder->reset()->uriFor($currentAction))
        ->setTitle($this->getLanguageService()->sL('LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.reload'))
        ->setIcon($this->iconFactory->getIcon('actions-refresh', Icon::SIZE_SMALL))
        ->setShowLabelText(false);
    $buttonBar->addButton($refreshButton, ButtonBar::BUTTON_POSITION_RIGHT, 1);

    // Shortcut/bookmark button (all actions)
    $shortcutButton = $buttonBar->makeShortcutButton()
        ->setRouteIdentifier('tools_TemporalCache')
        ->setDisplayName($this->getLanguageService()->sL('LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:mlang_tabs_tab'))
        ->setArguments(['action' => $currentAction]);
    $buttonBar->addButton($shortcutButton, ButtonBar::BUTTON_POSITION_RIGHT, 2);

    // Action-specific buttons
    switch ($currentAction) {
        case 'dashboard':
            // Quick access to content list
            $contentButton = $buttonBar->makeLinkButton()
                ->setHref($this->uriBuilder->reset()->uriFor('content'))
                ->setTitle($this->getLanguageService()->sL('LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:button.view_content'))
                ->setIcon($this->iconFactory->getIcon('actions-document-open', Icon::SIZE_SMALL))
                ->setShowLabelText(true);
            $buttonBar->addButton($contentButton, ButtonBar::BUTTON_POSITION_LEFT, 1);
            break;

        case 'wizard':
            // Help button for wizard
            $helpButton = $buttonBar->makeHelpButton()
                ->setFieldName('temporal_cache_wizard')
                ->setModuleName('_MOD_tools_TemporalCache');
            $buttonBar->addButton($helpButton, ButtonBar::BUTTON_POSITION_RIGHT, 3);
            break;
    }
}

Step 4: Call from setupModuleTemplate

private function setupModuleTemplate(ModuleTemplate $moduleTemplate, string $currentAction): void
{
    $moduleTemplate->setTitle(
        $this->getLanguageService()->sL('LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:mlang_tabs_tab')
    );

    $moduleTemplate->getPageRenderer()->loadJavaScriptModule(
        '@netresearch/nr-temporal-cache/backend-module.js'
    );

    // Add DocHeader buttons
    $this->addDocHeaderButtons($moduleTemplate, $currentAction);

    // ... menu creation
}

Validation:

# Check IconFactory injection
grep "IconFactory" Classes/Controller/Backend/*.php

# Verify addDocHeaderButtons method exists
grep -A 5 "addDocHeaderButtons" Classes/Controller/Backend/*.php

# Check button types used
grep "makeLinkButton\|makeShortcutButton\|makeHelpButton" Classes/Controller/Backend/*.php

Common Button Types:

makeLinkButton() - Navigate to URL
makeShortcutButton() - Bookmark module state
makeHelpButton() - Context-sensitive help
makeInputButton() - Form submission
makeFullyRenderedButton() - Custom HTML

Severity: 🟡 Important - Standard TYPO3 UX pattern

Problem: Browser alert(), confirm(), prompt() are deprecated and not user-friendly

TYPO3 v13 Standard: Use @typo3/backend/modal.js and @typo3/backend/notification.js

Before (DEPRECATED):

// Inline JavaScript using browser APIs
if (confirm('Really delete this item?')) {
    fetch('/delete', { method: 'POST' })
        .then(() => alert('Deleted successfully'))
        .catch(() => alert('Error occurred'));
}

After (MODERN v13):

import Modal from '@typo3/backend/modal.js';
import Notification from '@typo3/backend/notification.js';

// Confirmation Modal
Modal.confirm(
    'Delete Item',
    'Really delete this item? This action cannot be undone.',
    Modal.SeverityEnum.warning,
    [
        {
            text: 'Cancel',
            active: true,
            btnClass: 'btn-default',
            trigger: () => Modal.dismiss()
        },
        {
            text: 'Delete',
            btnClass: 'btn-danger',
            trigger: () => {
                Modal.dismiss();
                performDelete();
            }
        }
    ]
);

async function performDelete() {
    try {
        const response = await fetch('/delete', { method: 'POST' });
        const data = await response.json();

        if (data.success) {
            Notification.success('Success', 'Item deleted successfully');
        } else {
            Notification.error('Error', data.message);
        }
    } catch (error) {
        Notification.error('Error', 'Failed to delete: ' + error.message);
    }
}

Modal Severity Levels:

Modal.SeverityEnum.notice - Info/notice (blue)
Modal.SeverityEnum.info - Information (blue)
Modal.SeverityEnum.ok - Success (green)
Modal.SeverityEnum.warning - Warning (yellow)
Modal.SeverityEnum.error - Error (red)

Notification Types:

Notification.success(title, message, duration) - Green success message
Notification.error(title, message, duration) - Red error message
Notification.warning(title, message, duration) - Yellow warning
Notification.info(title, message, duration) - Blue information
Notification.notice(title, message, duration) - Gray notice

Validation:

# Check for browser APIs (violations)
grep -rn "alert(" Resources/Public/JavaScript/
grep -rn "confirm(" Resources/Public/JavaScript/
grep -rn "prompt(" Resources/Public/JavaScript/

# Verify TYPO3 APIs used
grep "import.*Modal" Resources/Public/JavaScript/*.js
grep "import.*Notification" Resources/Public/JavaScript/*.js

Severity: 🟡 Important - Modern UX and consistency

6. Accessibility (ARIA Labels and Roles)

Problem: Backend modules must be accessible for screen readers and keyboard navigation

WCAG 2.1 AA Requirements:

Semantic HTML roles
ARIA labels on interactive elements
Keyboard navigation support

Before (MISSING ACCESSIBILITY):

<table class="table table-striped">
    <thead>
        <tr>
            <th>
                <input type="checkbox" id="select-all">
            </th>
            <th>Title</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td><input type="checkbox" class="content-checkbox"></td>
            <td>Content item</td>
        </tr>
    </tbody>
</table>

After (ACCESSIBLE v13):

<table class="table table-striped table-hover" role="grid" aria-label="Temporal Content List">
    <thead>
        <tr role="row">
            <th style="width: 40px;" role="columnheader">
                <input
                    type="checkbox"
                    id="select-all"
                    class="form-check-input"
                    aria-label="Select all content items">
            </th>
            <th role="columnheader">
                <f:translate key="LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:content.table.title" />
            </th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>
                <input
                    type="checkbox"
                    class="form-check-input content-checkbox"
                    data-uid="{item.content.uid}"
                    aria-label="Select content item: {item.content.title}">
            </td>
            <td>{item.content.title}</td>
        </tr>
    </tbody>
</table>

Accessible Button Example:

<button
    type="button"
    class="btn btn-success"
    id="harmonize-selected-btn"
    disabled
    data-action="harmonize"
    aria-label="{f:translate(key: '...:content.harmonize_selected')}">
    <core:icon identifier="actions-synchronize" size="small" />
    <f:translate key="LLL:EXT:nr_temporal_cache/Resources/Private/Language/locallang_mod.xlf:content.harmonize_selected" />
</button>

Required ARIA Attributes:

role="grid" - On data tables
role="row" - On table rows
role="columnheader" - On table headers
aria-label="..." - On interactive elements without visible text
aria-labelledby="..." - Reference to label element
aria-describedby="..." - Additional description

Keyboard Navigation:

// Support Ctrl+A for select all
document.addEventListener('keydown', (e) => {
    if ((e.ctrlKey || e.metaKey) && e.key === 'a') {
        const selectAll = document.getElementById('select-all');
        if (selectAll && document.activeElement.tagName !== 'INPUT') {
            e.preventDefault();
            selectAll.checked = true;
            selectAll.dispatchEvent(new Event('change'));
        }
    }
});

Validation:

# Check for ARIA labels
grep -rn "aria-label" Resources/Private/Templates/

# Check for semantic roles
grep -rn 'role="grid\|row\|columnheader"' Resources/Private/Templates/

# Verify keyboard navigation support
grep -rn "keydown\|keyup\|keypress" Resources/Public/JavaScript/

Severity: 🟢 Recommended - WCAG 2.1 AA compliance

7. Icon Registration (Configuration/Icons.php)

Problem: Icon registration in ext_localconf.php using IconRegistry is deprecated in TYPO3 v13

TYPO3 v13 Standard: Use Configuration/Icons.php return array

Before (DEPRECATED v13):

// ext_localconf.php - DEPRECATED
$iconRegistry = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
    \TYPO3\CMS\Core\Imaging\IconRegistry::class
);

$iconRegistry->registerIcon(
    'temporal-cache-module',
    \TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider::class,
    ['source' => 'EXT:nr_temporal_cache/Resources/Public/Icons/Extension.svg']
);

After (MODERN v13):

<?php

// Configuration/Icons.php
declare(strict_types=1);

use TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;

return [
    'temporal-cache-module' => [
        'provider' => SvgIconProvider::class,
        'source' => 'EXT:nr_temporal_cache/Resources/Public/Icons/Extension.svg',
    ],
    'temporal-cache-harmonize' => [
        'provider' => SvgIconProvider::class,
        'source' => 'EXT:nr_temporal_cache/Resources/Public/Icons/Harmonize.svg',
    ],
];

Validation:

# Check for deprecated IconRegistry usage
grep -rn "IconRegistry" ext_localconf.php ext_tables.php

# Verify Configuration/Icons.php exists
ls -l Configuration/Icons.php

# Check icon registration format
grep -A 3 "return \[" Configuration/Icons.php

Severity: 🟡 Important - Removes deprecation warnings

8. CSRF Protection (URI Generation)

Problem: Hardcoded action URLs bypass TYPO3 CSRF protection

TYPO3 v13 Standard: Use uriBuilder for all action URIs

Before (INSECURE):

<button
    id="harmonize-btn"
    data-action-uri="/typo3/module/tools/temporal-cache/harmonize">
    Harmonize
</button>

const uri = button.dataset.actionUri;
fetch(uri, { method: 'POST', body: JSON.stringify(data) });

After (SECURE v13):

Controller:

public function contentAction(?ServerRequestInterface $request = null, ...): ResponseInterface
{
    // ...

    $moduleTemplate->assignMultiple([
        'content' => $paginator->getPaginatedItems(),
        'harmonizeActionUri' => isset($this->uriBuilder)
            ? $this->uriBuilder->reset()->uriFor('harmonize')
            : '',
        // ...
    ]);

    return $moduleTemplate->renderResponse('Backend/TemporalCache/Content');
}

Template:

<button
    id="harmonize-selected-btn"
    data-action-uri="{harmonizeActionUri}">
    Harmonize
</button>

JavaScript:

const harmonizeBtn = document.getElementById('harmonize-selected-btn');
const harmonizeUri = harmonizeBtn.dataset.actionUri;

// URI includes CSRF token automatically
const response = await fetch(harmonizeUri, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ content: selectedUids })
});

Validation:

# Check for hardcoded URLs (violations)
grep -rn '"/typo3/' Resources/Private/Templates/
grep -rn '"/typo3/' Resources/Public/JavaScript/

# Verify uriBuilder usage in controller
grep "uriFor(" Classes/Controller/Backend/*.php

# Check template receives URIs
grep "Uri}" Resources/Private/Templates/Backend/**/*.html

Severity: 🔴 Critical - Security vulnerability

Complete Modernization Checklist

Phase 1: Extension Key Consistency (Critical)

Verify correct extension key in ext_emconf.php
Search and replace all EXT:wrong_key/ → EXT:correct_key/ in templates
Update JavaScript alert/console messages with correct extension name
Verify translation keys work in backend module
Check static asset paths (CSS, images, icons)

Validation:

grep -rn "EXT:temporal_cache/" Resources/ # Should find ZERO
grep -rn "EXT:nr_temporal_cache/" Resources/ | wc -l # Should find ALL

Phase 2: JavaScript Modernization (Important)

Create Resources/Public/JavaScript/BackendModule.js as ES6 module
Import @typo3/backend/modal.js and @typo3/backend/notification.js
Implement class-based structure with proper initialization
Replace all alert() with Notification API
Replace all confirm() with Modal.confirm()
Add keyboard navigation support (Ctrl+A, etc.)
Remove ALL <f:section name="FooterAssets"> from templates
Remove ALL inline <script> tags from templates
Load module via $moduleTemplate->getPageRenderer()->loadJavaScriptModule()

Validation:

grep -rn "FooterAssets" Resources/Private/Templates/ # Should find ZERO
grep -rn "<script" Resources/Private/Templates/ # Should find ZERO
ls -lh Resources/Public/JavaScript/BackendModule.js # Should exist
grep "loadJavaScriptModule" Classes/Controller/Backend/*.php # Should find usage

Phase 3: Layout Pattern (Important)

Create Resources/Private/Layouts/Module.html with TYPO3 v13 structure
Add xmlns:core namespace to Module.html
Include <f:flashMessages /> in Module.html
Update ALL templates to use <f:layout name="Module" />
Add xmlns:core namespace to all templates
Remove any Default.html layout dependencies

Validation:

ls -l Resources/Private/Layouts/Module.html # Should exist
grep -n "f:layout name=" Resources/Private/Templates/Backend/**/*.html | grep -v "Module" # Should find ZERO
grep -n "xmlns:core" Resources/Private/Templates/Backend/**/*.html | wc -l # Should match template count

Phase 4: DocHeader Integration (Important)

Add use TYPO3\CMS\Backend\Template\Components\ButtonBar; import
Add use TYPO3\CMS\Core\Imaging\Icon; import
Add use TYPO3\CMS\Core\Imaging\IconFactory; import
Inject IconFactory into controller constructor
Create addDocHeaderButtons() method
Add refresh button (all actions)
Add shortcut/bookmark button (all actions)
Add action-specific buttons (view content, help, etc.)
Call addDocHeaderButtons() from setupModuleTemplate()

Validation:

grep "IconFactory" Classes/Controller/Backend/*.php # Should find injection
grep -A 5 "addDocHeaderButtons" Classes/Controller/Backend/*.php # Should find method
grep "makeLinkButton\|makeShortcutButton" Classes/Controller/Backend/*.php # Should find usage

Phase 5: TYPO3 APIs (Important)

Import Modal and Notification in ES6 module
Replace confirm() with Modal.confirm() with severity levels
Replace alert() success with Notification.success()
Replace alert() errors with Notification.error()
Use proper Modal button configurations (text, btnClass, trigger)
Set appropriate severity levels (notice, info, ok, warning, error)

Validation:

grep -rn "alert(" Resources/Public/JavaScript/ # Should find ZERO
grep -rn "confirm(" Resources/Public/JavaScript/ # Should find ZERO
grep "Modal.confirm" Resources/Public/JavaScript/*.js # Should find usage
grep "Notification\.(success\|error)" Resources/Public/JavaScript/*.js # Should find usage

Phase 6: Accessibility (Recommended)

Add role="grid" to data tables
Add role="row" to table rows
Add role="columnheader" to table headers
Add aria-label to checkboxes without visible labels
Add aria-label to buttons with icon-only content
Implement keyboard navigation (Ctrl+A for select all)
Test with screen reader
Verify all interactive elements are keyboard accessible

Validation:

grep -rn "aria-label" Resources/Private/Templates/ # Should find accessibility labels
grep -rn 'role="grid\|row\|columnheader"' Resources/Private/Templates/ # Should find semantic roles

Phase 7: Icon Registration (Important)

Create Configuration/Icons.php if missing
Migrate icon registration from ext_localconf.php
Use proper return array structure
Set correct provider class (SvgIconProvider, BitmapIconProvider, etc.)
Verify icon source paths are correct
Remove deprecated IconRegistry code from ext_localconf.php

Validation:

ls -l Configuration/Icons.php # Should exist
grep -rn "IconRegistry" ext_localconf.php # Should find ZERO

Phase 8: CSRF Protection (Critical)

Use uriBuilder->uriFor() for all action URIs
Pass URIs to templates via assignMultiple()
Use data attributes in templates: data-action-uri="{harmonizeActionUri}"
Read URIs from data attributes in JavaScript
Remove all hardcoded /typo3/... URLs

Validation:

grep -rn '"/typo3/' Resources/ # Should find ZERO (except maybe comments)
grep "uriFor(" Classes/Controller/Backend/*.php # Should find URI generation

Phase 9: Testing and Validation (Critical)

Run unit tests: composer test:unit
Run functional tests: composer test:functional
Check for PHP deprecation warnings
Test module in TYPO3 backend manually
Verify all buttons work (refresh, shortcut, action buttons)
Test harmonization/actions with Modal confirmations
Verify Notification API messages display correctly
Test keyboard navigation (Ctrl+A, Tab order)
Check browser console for JavaScript errors
Validate translation keys work

Validation:

composer test # All tests should pass
vendor/bin/typo3 cache:flush # Clear caches
# Manual testing in backend

Phase 10: Documentation (Important)

Document backend module usage in Documentation/
Add screenshots of module UI
Document keyboard shortcuts
Update README.md with backend module info
Create CHANGELOG entry for modernization
Update version in ext_emconf.php

Conformance Scoring Impact

Category	Before	After	Improvement
Extension Architecture	15/20	18/20	+3 (Fixed extension keys, layout pattern)
Coding Guidelines	18/20	20/20	+2 (ES6 modules, icon registration)
PHP Architecture	16/20	18/20	+2 (IconFactory DI, proper URI generation)
Testing Standards	18/20	18/20	0 (Already passing)
Best Practices	15/20	20/20	+5 (Modern JS, accessibility, CSRF)
Total Base Score	82/100	94/100	+12 points
Excellence: Documentation	0/4	1/4	+1 (Added module docs)
Total Score	82/120	95/120	+13 points

Estimated Time Investment:

Analysis: 1-2 hours
Phase 1-2 (Critical fixes): 2-3 hours
Phase 3-5 (JavaScript + Layout): 3-4 hours
Phase 6-8 (Accessibility + Icons + CSRF): 2-3 hours
Phase 9-10 (Testing + Docs): 2-3 hours
Total: 10-15 hours for complete modernization

Common Pitfalls and Solutions

Pitfall 1: Extension Key Case Sensitivity

Problem: nr_temporal_cache vs nr-temporal-cache vs nrTemporalCache Solution: Use snake_case (nr_temporal_cache) consistently everywhere. TYPO3 extension keys are always snake_case.

Pitfall 2: JavaScript Module Path

Problem: @vendor/extension-name/ vs @vendor/extension_name/ Solution: Use hyphen-case in module paths: @netresearch/nr-temporal-cache/backend-module.js

Problem: Modal stays open after button click Solution: Always call Modal.dismiss() in trigger callbacks before performing action

Pitfall 4: Notification Duration

Problem: Success notifications disappear too quickly Solution: Add duration parameter: Notification.success(title, message, 3) (3 seconds)

Pitfall 5: IconFactory Not Available in Tests

Problem: Tests fail with "Call to a member function getIcon() on null" Solution: Check isset($this->uriBuilder) before calling button-related methods

Pitfall 6: ARIA Labels Not Translatable

Problem: Hardcoded English text in aria-label Solution: Use Fluid translate ViewHelper: aria-label="{f:translate(key: '...')}"

Real-World Example: Complete Before/After

Extension: nr_temporal_cache - Backend module for temporal content management Modernization: Complete v13 compliance (45/100 → 95/100)

Files Changed

Classes/Controller/Backend/TemporalCacheController.php - Added IconFactory, DocHeader, JS module loading
Resources/Private/Layouts/Module.html - Created new layout
Resources/Private/Templates/Backend/TemporalCache/*.html - Fixed keys, removed inline JS, added ARIA
Resources/Public/JavaScript/BackendModule.js - Created 246-line ES6 module
Configuration/Icons.php - Created icon registration
ext_localconf.php - Removed deprecated IconRegistry code

Results

✅ 57 extension key references fixed
✅ 95 lines of inline JavaScript removed
✅ 246 lines of ES6 module created
✅ DocHeader with 3 button types added
✅ Modal and Notification APIs integrated
✅ ARIA labels on 12+ interactive elements
✅ Keyboard navigation (Ctrl+A) implemented
✅ CSRF protection via uriBuilder
✅ Zero deprecation warnings
✅ 316 unit tests passing
✅ 95/100 conformance score

Commit: 79db9cf - 6 files changed, +459/-204 lines, 8.1KB ES6 module created

References

TYPO3 Core API: https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/
Backend Module API: https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/Backend/BackendModules.html
JavaScript API: https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/JavaScript/
Icon API: https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/Icon/Index.html
WCAG 2.1: https://www.w3.org/WAI/WCAG21/quickref/

Created: 2025-11-21 based on real-world nr_temporal_cache modernization

34 KiB Raw Permalink Blame History

TYPO3 v13 Backend Module Modernization

Critical Compliance Issues

1. Extension Key Consistency

2. JavaScript Modernization (ES6 Modules)

3. Module Layout Pattern

4. DocHeader Component Integration

5. TYPO3 Modal and Notification APIs

6. Accessibility (ARIA Labels and Roles)

7. Icon Registration (Configuration/Icons.php)

8. CSRF Protection (URI Generation)

Complete Modernization Checklist

Phase 1: Extension Key Consistency (Critical)

Phase 2: JavaScript Modernization (Important)

Phase 3: Layout Pattern (Important)

Phase 4: DocHeader Integration (Important)

Phase 5: TYPO3 APIs (Important)

Phase 6: Accessibility (Recommended)

Phase 7: Icon Registration (Important)

Phase 8: CSRF Protection (Critical)

Phase 9: Testing and Validation (Critical)

Phase 10: Documentation (Important)

Conformance Scoring Impact

Common Pitfalls and Solutions

Pitfall 1: Extension Key Case Sensitivity

Pitfall 2: JavaScript Module Path

Pitfall 3: Modal Not Dismissing

Pitfall 4: Notification Duration

Pitfall 5: IconFactory Not Available in Tests

Pitfall 6: ARIA Labels Not Translatable

Real-World Example: Complete Before/After

Files Changed

Results

References

34 KiB

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