Recognize 'Hidden' Attribute in Xml Spreadsheet

Fix #3566; PhpSpreadsheet should now handle Hidden attribute for rows and columns in Xml spreadsheets. Also added the ability to load Xml spreadsheet from string rather than file, as can be done for Csv and Html.

src/PhpSpreadsheet/Reader/Xml.php

@@ -231,6 +231,19 @@ public function listWorksheetInfo($filename)
         return $worksheetInfo;
     }
 
+    /**
+     * Loads Spreadsheet from string.
+     */
+    public function loadSpreadsheetFromString(string $contents): Spreadsheet
+    {
+        // Create new Spreadsheet
+        $spreadsheet = new Spreadsheet();
+        $spreadsheet->removeSheetByIndex(0);
+
+        // Load into this instance
+        return $this->loadIntoExisting($contents, $spreadsheet, true);
+    }
+
     /**
      * Loads Spreadsheet from file.
      */
@@ -245,17 +258,19 @@ protected function loadSpreadsheetFromFile(string $filename): Spreadsheet
     }
 
     /**
-     * Loads from file into Spreadsheet instance.
-     *
-     * @param string $filename
+     * Loads from file or contents into Spreadsheet instance.
      *
-     * @return Spreadsheet
+     * @param string $filename file name if useContents is false else file contents
      */
-    public function loadIntoExisting($filename, Spreadsheet $spreadsheet)
+    public function loadIntoExisting(string $filename, Spreadsheet $spreadsheet, bool $useContents = false): Spreadsheet
     {
-        File::assertFile($filename);
-        if (!$this->canRead($filename)) {
-            throw new Exception($filename . ' is an Invalid Spreadsheet file.');
+        if ($useContents) {
+            $this->fileContents = $filename;
+        } else {
+            File::assertFile($filename);
+            if (!$this->canRead($filename)) {
+                throw new Exception($filename . ' is an Invalid Spreadsheet file.');
+            }
         }
 
         $xml = $this->trySimpleXMLLoadString($filename);
@@ -321,6 +336,10 @@ public function loadIntoExisting($filename, Spreadsheet $spreadsheet)
                         $columnWidth = $columnData_ss['Width'];
                         $spreadsheet->getActiveSheet()->getColumnDimension($columnID)->setWidth($columnWidth / 5.4);
                     }
+                    if (isset($columnData_ss['Hidden'])) {
+                        $columnVisible = ((string) $columnData_ss['Hidden']) !== '1';
+                        $spreadsheet->getActiveSheet()->getColumnDimension($columnID)->setVisible($columnVisible);
+                    }
                     ++$columnID;
                 }
             }
@@ -334,6 +353,10 @@ public function loadIntoExisting($filename, Spreadsheet $spreadsheet)
                     if (isset($row_ss['Index'])) {
                         $rowID = (int) $row_ss['Index'];
                     }
+                    if (isset($row_ss['Hidden'])) {
+                        $rowVisible = ((string) $row_ss['Hidden']) !== '1';
+                        $spreadsheet->getActiveSheet()->getRowDimension($rowID)->setVisible($rowVisible);
+                    }
 
                     $columnID = 'A';
                     foreach ($rowData->Cell as $cell) {

tests/PhpSpreadsheetTests/Reader/Xml/XmlColumnRowHiddenTest.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Xml;
+
+use PhpOffice\PhpSpreadsheet\Reader\Xml;
+use PHPUnit\Framework\TestCase;
+
+class XmlColumnRowHiddenTest extends TestCase
+{
+    public function testWriteThenRead(): void
+    {
+        $xmldata = <<< 'EOT'
+            <?xml version="1.0" encoding="UTF-8"?>
+            <?mso-application progid="Excel.Sheet"?>
+            <Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">
+                <Worksheet ss:Name="1">
+                    <ss:Table>
+                        <Column ss:Hidden="1" />
+                        <Column ss:Hidden="0" />
+                        <Column />
+                        <ss:Row ss:Hidden="1">
+                            <ss:Cell>
+                                <ss:Data ss:Type="String">hidden row and hidden column</ss:Data>
+                            </ss:Cell>
+                            <ss:Cell>
+                                <ss:Data ss:Type="String">hidden row and visible column</ss:Data>
+                            </ss:Cell>
+                        </ss:Row>
+                        <ss:Row ss:Hidden="0">
+                            <ss:Cell>
+                                <ss:Data ss:Type="String">visible row and hidden column</ss:Data>
+                            </ss:Cell>
+                            <ss:Cell>
+                                <ss:Data ss:Type="String">visible row and visible column</ss:Data>
+                            </ss:Cell>
+                        </ss:Row>
+                        <ss:Row />
+                    </ss:Table>
+                </Worksheet>
+            </Workbook>
+            EOT;
+        $reader = new Xml();
+        $spreadsheet = $reader->loadSpreadsheetFromString($xmldata);
+        self::assertEquals(1, $spreadsheet->getSheetCount());
+
+        $sheet = $spreadsheet->getActiveSheet();
+        self::assertEquals('1', $sheet->getTitle());
+        self::assertFalse($sheet->getColumnDimension('A')->getVisible());
+        self::assertTrue($sheet->getColumnDimension('B')->getVisible());
+        self::assertTrue($sheet->getColumnDimension('C')->getVisible());
+        self::assertFalse($sheet->getRowDimension(1)->getVisible());
+        self::assertTrue($sheet->getRowDimension(2)->getVisible());
+        self::assertTrue($sheet->getRowDimension(3)->getVisible());
+
+        $spreadsheet->disconnectWorksheets();
+    }
+}

tests/PhpSpreadsheetTests/Reader/Xml/XmlOddTest.php

@@ -69,5 +69,6 @@ public function testWriteThenRead(): void
         $props = $spreadsheet->getProperties();
         self::assertEquals('Xml2003 Short Workbook', $props->getTitle());
         self::assertEquals('2', $props->getCustomPropertyValue('myאInt'));
+        $spreadsheet->disconnectWorksheets();
     }
 }