support multi-line values in excel invoices (#1507)

src/Invoice/Renderer/AbstractSpreadsheetRenderer.php

@@ -11,6 +11,7 @@ namespace App\Invoice\Renderer;
 
 use App\Entity\InvoiceDocument;
 use App\Invoice\InvoiceModel;
+use PhpOffice\PhpSpreadsheet\Cell\Cell;
 use PhpOffice\PhpSpreadsheet\IOFactory;
 use PhpOffice\PhpSpreadsheet\Spreadsheet;
 use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
@@ -59,6 +60,8 @@ abstract class AbstractSpreadsheetRenderer extends AbstractRenderer
 
         $entryRow = 0;
 
+        Cell::setValueBinder(new AdvancedValueBinder());
+
         foreach ($worksheet->getRowIterator() as $row) {
             $sheetValues = false;
             foreach ($row->getCellIterator() as $cell) {

src/Invoice/Renderer/AdvancedValueBinder.php

@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Invoice\Renderer;
+
+use PhpOffice\PhpSpreadsheet\Cell\Cell;
+use PhpOffice\PhpSpreadsheet\Cell\DataType;
+use PhpOffice\PhpSpreadsheet\Cell\DefaultValueBinder;
+use PhpOffice\PhpSpreadsheet\Cell\IValueBinder;
+use PhpOffice\PhpSpreadsheet\RichText\RichText;
+use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
+
+class AdvancedValueBinder extends DefaultValueBinder implements IValueBinder
+{
+    /**
+     * Bind value to a cell.
+     *
+     * @param Cell $cell Cell to bind value to
+     * @param mixed $value Value to bind in cell
+     *
+     * @throws \PhpOffice\PhpSpreadsheet\Exception
+     *
+     * @return bool
+     */
+    public function bindValue(Cell $cell, $value = null)
+    {
+        if (is_string($value)) {
+            $value = StringHelper::sanitizeUTF8($value);
+        }
+
+        $dataType = parent::dataTypeForValue($value);
+
+        if ($dataType === DataType::TYPE_STRING && !$value instanceof RichText) {
+            // Check for newline character "\n"
+            if (strpos($value, "\n") !== false) {
+                $cell->setValueExplicit($value, DataType::TYPE_STRING);
+                $cell->getWorksheet()->getStyle($cell->getCoordinate())->getAlignment()->setWrapText(true);
+
+                $amount = substr_count($value, "\n");
+                $dimension = $cell->getWorksheet()->getRowDimension($cell->getRow());
+                if ($dimension->getRowHeight() !== -1) {
+                    $defaultHeight = $cell->getWorksheet()->getDefaultRowDimension()->getRowHeight();
+                    $dimension->setRowHeight($defaultHeight * ($amount + 1));
+                }
+
+                return true;
+            }
+        }
+
+        return parent::bindValue($cell, $value);
+    }
+}