N°8771 - Add Symfony form component to iTop core

- IO

sources/Forms/FormBuilder/DependencyMap.php

@@ -0,0 +1,82 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Forms\FormBuilder;
+
+use Combodo\iTop\Forms\Block\FormBlock;
+use Symfony\Component\Form\Event\PostSetDataEvent;
+use Symfony\Component\Form\Event\PostSubmitEvent;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\Form\FormEvents;
+use Symfony\Component\Form\FormInterface;
+
+/**
+ * Dependencies handler.
+ *
+ */
+class DependencyMap
+{
+	/** @var array dependant blocks */
+	private array $aDependentBlocks = [];
+
+	/** @var array dependencies map */
+	private array $aDependenciesMap = [];
+
+	/**
+	 * Constructor.
+	 *
+	 * @param array $aDependentBlocks
+	 */
+	public function __construct(array $aDependentBlocks)
+	{
+		$this->aDependentBlocks = $aDependentBlocks;
+
+		// Initialization
+		$this->Init();
+	}
+
+	private function Init(): void
+	{
+		/** iterate throw dependents blocks... @var FormBlock $oDependentBlock */
+		foreach ($this->aDependentBlocks as $oDependentBlock) {
+
+			/** iterate throw the block inputs connections... **/
+			foreach ($oDependentBlock->GetInputsConnections() as $sInputName => $aConnections) {
+
+				/** Iterate throw the input connections... */
+				foreach ($aConnections as $aConnection) {
+
+					// connection information
+					$sOutputBlock = $aConnection['output_block'];
+					$sOutputBlockName = $sOutputBlock->getName();
+					$sOutputName = $aConnection['output'];
+
+					// initialize map
+					if (!isset($this->aDependenciesMap[$sOutputBlockName])) {
+						$this->aDependenciesMap[$sOutputBlockName] = [];
+					}
+					if (!isset($this->aDependenciesMap[$sOutputBlockName][$sOutputName])) {
+						$this->aDependenciesMap[$sOutputBlockName][$sOutputName] = [];
+					}
+
+					// add to map
+					$this->aDependenciesMap[$sOutputBlockName][$sOutputName][] = ['input_block' => $oDependentBlock, 'input_name' => $sInputName];
+				}
+			}
+		}
+
+	}
+
+	public function GetListenedBlockNames(): array
+	{
+		return array_keys($this->aDependenciesMap);
+	}
+
+	public function GetOutputsForBlock(string $sBlockName): array
+	{
+		return array_keys($this->aDependenciesMap[$sBlockName]);
+	}
+}