Deprecation: #96524 - Deprecate inline JavaScript in Dashboard 

Description 

Using inline JavaScript when initializing RequireJS modules in individual dashboard widgets has been deprecated. Widget implementations have to be adjusted accordingly.

Impact 

Usages will trigger PHP E_USER_DEPRECATED errors.

Affected Installations 

Installations having individual widget implementations which are

• implementing \TYPO3\CMS\Dashboard\Widgets\RequireJsModuleInterface
• invoking \TYPO3\CMS\Dashboard\DashboardInitializationService->getRequireJsModules

Migration 

Affected widget have to implement \TYPO3\CMS\Dashboard\Widgets\JavaScriptInterface instead of deprecated \TYPO3\CMS\Dashboard\Widgets\RequireJsModuleInterface. Instead of using inline JavaScript for initializing RequireJS modules, \TYPO3\CMS\Core\Page\JavaScriptModuleInstruction have to be declared.

class ExampleChartWidget implements RequireJsModuleInterface
{
    // ...
    public function getJavaScriptModuleInstructions(): array
    {
        return [
            'TYPO3/CMS/Dashboard/ChartInitializer' =>
                'function(ChartInitializer) { ChartInitializer.initialize(); }',
        ];
    }
}

Deprecated example widget above would look like the following when using JavaScriptInterface and JavaScriptModuleInstruction:

class ExampleChartWidget implements JavaScriptInterface
{
    // ...
    public function getJavaScriptModuleInstructions(): array
    {
        return [
            JavaScriptModuleInstruction::forRequireJS(
                'TYPO3/CMS/Dashboard/ChartInitializer'
            )->invoke('initialize'),
        ];
    }
}