class.ilLMEditGSToolProvider.php

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<?php

use ILIAS\GlobalScreen\Scope\Tool\Provider\AbstractDynamicToolProvider;
use ILIAS\GlobalScreen\ScreenContext\Stack\CalledContexts;
use ILIAS\GlobalScreen\ScreenContext\Stack\ContextCollection;
use ILIAS\GlobalScreen\Scope\MainMenu\Collector\Renderer\Hasher;
use ILIAS\UI\Implementation\Component\MainControls\Slate\Legacy as LegacySlate;

class ilLMEditGSToolProvider extends AbstractDynamicToolProvider
{
    use Hasher;
    public const SHOW_TREE = 'show_tree';

    public function isInterestedInContexts(): ContextCollection
    {
        return $this->context_collection->main()->repository();
    }


    public function getToolsForContextStack(CalledContexts $called_contexts): array
    {
        $tools = [];
        $additional_data = $called_contexts->current()->getAdditionalData();
        if ($additional_data->is(self::SHOW_TREE, true)) {
            $title = $this->dic->language()->txt('objs_st');
            $icon = $this->dic->ui()->factory()->symbol()->icon()->custom(\ilUtil::getImagePath("standard/icon_chp.svg"), $title);

            $iff = function ($id) {
                return $this->identification_provider->contextAwareIdentifier($id);
            };
            $l = function (string $content) {
                return $this->dic->ui()->factory()->legacy($content);
            };
            $identification = $iff("tree");
            $hashed = $this->hash($identification->serialize());
            $tools[] = $this->factory->tool($identification)
                ->addComponentDecorator(static function (ILIAS\UI\Component\Component $c) use ($hashed): ILIAS\UI\Component\Component {
                    if ($c instanceof LegacySlate) {
                        $signal_id = $c->getToggleSignal()->getId();
                        return $c->withAdditionalOnLoadCode(static function ($id) use ($hashed) {
                            return "document.addEventListener('il-lm-editor-tree', () => {
                                    il.UI.maincontrols.mainbar.engageTool('$hashed');
                                 });";
                        });
                    }
                    return $c;
                })
                ->withTitle($title)
                ->withSymbol($icon)
                ->withContentWrapper(function () use ($l) {
                    return $l($this->getContent());
                });
        }

        return $tools;
    }


    private function getContent(): string
    {
        global $DIC;

        $request = $DIC->learningModule()
            ->internal()
            ->gui()
            ->editing()
            ->request();

        $lm = new ilObjLearningModule($request->getRefId());

        $exp = new ilLMEditorExplorerGUI("illmeditorgui", "showTree", $lm);

        return $exp->getHTML();
    }
}