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<?php
namespace Box\Spout\Writer\XLSX\Manager;
use Box\Spout\Common\Entity\Cell;
use Box\Spout\Common\Entity\Row;
use Box\Spout\Common\Entity\Style\Style;
use Box\Spout\Common\Exception\InvalidArgumentException;
use Box\Spout\Common\Exception\IOException;
use Box\Spout\Common\Helper\Escaper\XLSX as XLSXEscaper;
use Box\Spout\Common\Helper\StringHelper;
use Box\Spout\Common\Manager\OptionsManagerInterface;
use Box\Spout\Writer\Common\Creator\InternalEntityFactory;
use Box\Spout\Writer\Common\Entity\Options;
use Box\Spout\Writer\Common\Entity\Worksheet;
use Box\Spout\Writer\Common\Helper\CellHelper;
use Box\Spout\Writer\Common\Manager\RegisteredStyle;
use Box\Spout\Writer\Common\Manager\RowManager;
use Box\Spout\Writer\Common\Manager\Style\StyleMerger;
use Box\Spout\Writer\Common\Manager\WorksheetManagerInterface;
use Box\Spout\Writer\XLSX\Manager\Style\StyleManager;
/**
* Class WorksheetManager
* XLSX worksheet manager, providing the interfaces to work with XLSX worksheets.
*/
class WorksheetManager implements WorksheetManagerInterface
{
/**
* Maximum number of characters a cell can contain
* @see https://support.office.com/en-us/article/Excel-specifications-and-limits-16c69c74-3d6a-4aaf-ba35-e6eb276e8eaa [Excel 2007]
* @see https://support.office.com/en-us/article/Excel-specifications-and-limits-1672b34d-7043-467e-8e27-269d656771c3 [Excel 2010]
* @see https://support.office.com/en-us/article/Excel-specifications-and-limits-ca36e2dc-1f09-4620-b726-67c00b05040f [Excel 2013/2016]
*/
const MAX_CHARACTERS_PER_CELL = 32767;
const SHEET_XML_FILE_HEADER = <<<'EOD'
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
EOD;
/** @var bool Whether inline or shared strings should be used */
protected $shouldUseInlineStrings;
/** @var RowManager Manages rows */
private $rowManager;
/** @var StyleManager Manages styles */
private $styleManager;
/** @var StyleMerger Helper to merge styles together */
private $styleMerger;
/** @var SharedStringsManager Helper to write shared strings */
private $sharedStringsManager;
/** @var XLSXEscaper Strings escaper */
private $stringsEscaper;
/** @var StringHelper String helper */
private $stringHelper;
/** @var InternalEntityFactory Factory to create entities */
private $entityFactory;
/**
* WorksheetManager constructor.
*
* @param OptionsManagerInterface $optionsManager
* @param RowManager $rowManager
* @param StyleManager $styleManager
* @param StyleMerger $styleMerger
* @param SharedStringsManager $sharedStringsManager
* @param XLSXEscaper $stringsEscaper
* @param StringHelper $stringHelper
* @param InternalEntityFactory $entityFactory
*/
public function __construct(
OptionsManagerInterface $optionsManager,
RowManager $rowManager,
StyleManager $styleManager,
StyleMerger $styleMerger,
SharedStringsManager $sharedStringsManager,
XLSXEscaper $stringsEscaper,
StringHelper $stringHelper,
InternalEntityFactory $entityFactory
) {
$this->shouldUseInlineStrings = $optionsManager->getOption(Options::SHOULD_USE_INLINE_STRINGS);
$this->rowManager = $rowManager;
$this->styleManager = $styleManager;
$this->styleMerger = $styleMerger;
$this->sharedStringsManager = $sharedStringsManager;
$this->stringsEscaper = $stringsEscaper;
$this->stringHelper = $stringHelper;
$this->entityFactory = $entityFactory;
}
/**
* @return SharedStringsManager
*/
public function getSharedStringsManager()
{
return $this->sharedStringsManager;
}
/**
* {@inheritdoc}
*/
public function startSheet(Worksheet $worksheet)
{
$sheetFilePointer = \fopen($worksheet->getFilePath(), 'w');
$this->throwIfSheetFilePointerIsNotAvailable($sheetFilePointer);
$worksheet->setFilePointer($sheetFilePointer);
\fwrite($sheetFilePointer, self::SHEET_XML_FILE_HEADER);
\fwrite($sheetFilePointer, '<sheetData>');
}
/**
* Checks if the sheet has been sucessfully created. Throws an exception if not.
*
* @param bool|resource $sheetFilePointer Pointer to the sheet data file or FALSE if unable to open the file
* @throws IOException If the sheet data file cannot be opened for writing
* @return void
*/
private function throwIfSheetFilePointerIsNotAvailable($sheetFilePointer)
{
if (!$sheetFilePointer) {
throw new IOException('Unable to open sheet for writing.');
}
}
/**
* {@inheritdoc}
*/
public function addRow(Worksheet $worksheet, Row $row)
{
if (!$this->rowManager->isEmpty($row)) {
$this->addNonEmptyRow($worksheet, $row);
}
$worksheet->setLastWrittenRowIndex($worksheet->getLastWrittenRowIndex() + 1);
}
/**
* Adds non empty row to the worksheet.
*
* @param Worksheet $worksheet The worksheet to add the row to
* @param Row $row The row to be written
* @throws IOException If the data cannot be written
* @throws InvalidArgumentException If a cell value's type is not supported
* @return void
*/
private function addNonEmptyRow(Worksheet $worksheet, Row $row)
{
$rowStyle = $row->getStyle();
$rowIndexOneBased = $worksheet->getLastWrittenRowIndex() + 1;
$numCells = $row->getNumCells();
$rowXML = '<row r="' . $rowIndexOneBased . '" spans="1:' . $numCells . '">';
foreach ($row->getCells() as $columnIndexZeroBased => $cell) {
$registeredStyle = $this->applyStyleAndRegister($cell, $rowStyle);
$cellStyle = $registeredStyle->getStyle();
if ($registeredStyle->isMatchingRowStyle()) {
$rowStyle = $cellStyle; // Replace actual rowStyle (possibly with null id) by registered style (with id)
}
$rowXML .= $this->getCellXML($rowIndexOneBased, $columnIndexZeroBased, $cell, $cellStyle->getId());
}
$rowXML .= '</row>';
$wasWriteSuccessful = \fwrite($worksheet->getFilePointer(), $rowXML);
if ($wasWriteSuccessful === false) {
throw new IOException("Unable to write data in {$worksheet->getFilePath()}");
}
}
/**
* Applies styles to the given style, merging the cell's style with its row's style
*
* @param Cell $cell
* @param Style $rowStyle
*
* @throws InvalidArgumentException If the given value cannot be processed
* @return RegisteredStyle
*/
private function applyStyleAndRegister(Cell $cell, Style $rowStyle) : RegisteredStyle
{
$isMatchingRowStyle = false;
if ($cell->getStyle()->isEmpty()) {
$cell->setStyle($rowStyle);
$possiblyUpdatedStyle = $this->styleManager->applyExtraStylesIfNeeded($cell);
if ($possiblyUpdatedStyle->isUpdated()) {
$registeredStyle = $this->styleManager->registerStyle($possiblyUpdatedStyle->getStyle());
} else {
$registeredStyle = $this->styleManager->registerStyle($rowStyle);
$isMatchingRowStyle = true;
}
} else {
$mergedCellAndRowStyle = $this->styleMerger->merge($cell->getStyle(), $rowStyle);
$cell->setStyle($mergedCellAndRowStyle);
$possiblyUpdatedStyle = $this->styleManager->applyExtraStylesIfNeeded($cell);
if ($possiblyUpdatedStyle->isUpdated()) {
$newCellStyle = $possiblyUpdatedStyle->getStyle();
} else {
$newCellStyle = $mergedCellAndRowStyle;
}
$registeredStyle = $this->styleManager->registerStyle($newCellStyle);
}
return new RegisteredStyle($registeredStyle, $isMatchingRowStyle);
}
/**
* Builds and returns xml for a single cell.
*
* @param int $rowIndexOneBased
* @param int $columnIndexZeroBased
* @param Cell $cell
* @param int $styleId
*
* @throws InvalidArgumentException If the given value cannot be processed
* @return string
*/
private function getCellXML($rowIndexOneBased, $columnIndexZeroBased, Cell $cell, $styleId)
{
$columnLetters = CellHelper::getColumnLettersFromColumnIndex($columnIndexZeroBased);
$cellXML = '<c r="' . $columnLetters . $rowIndexOneBased . '"';
$cellXML .= ' s="' . $styleId . '"';
if ($cell->isString()) {
$cellXML .= $this->getCellXMLFragmentForNonEmptyString($cell->getValue());
} elseif ($cell->isBoolean()) {
$cellXML .= ' t="b"><v>' . (int) ($cell->getValue()) . '</v></c>';
} elseif ($cell->isNumeric()) {
$cellXML .= '><v>' . $this->stringHelper->formatNumericValue($cell->getValue()) . '</v></c>';
} elseif ($cell->isError() && is_string($cell->getValueEvenIfError())) {
// only writes the error value if it's a string
$cellXML .= ' t="e"><v>' . $cell->getValueEvenIfError() . '</v></c>';
} elseif ($cell->isEmpty()) {
if ($this->styleManager->shouldApplyStyleOnEmptyCell($styleId)) {
$cellXML .= '/>';
} else {
// don't write empty cells that do no need styling
// NOTE: not appending to $cellXML is the right behavior!!
$cellXML = '';
}
} else {
throw new InvalidArgumentException('Trying to add a value with an unsupported type: ' . \gettype($cell->getValue()));
}
return $cellXML;
}
/**
* Returns the XML fragment for a cell containing a non empty string
*
* @param string $cellValue The cell value
* @throws InvalidArgumentException If the string exceeds the maximum number of characters allowed per cell
* @return string The XML fragment representing the cell
*/
private function getCellXMLFragmentForNonEmptyString($cellValue)
{
if ($this->stringHelper->getStringLength($cellValue) > self::MAX_CHARACTERS_PER_CELL) {
throw new InvalidArgumentException('Trying to add a value that exceeds the maximum number of characters allowed in a cell (32,767)');
}
if ($this->shouldUseInlineStrings) {
$cellXMLFragment = ' t="inlineStr"><is><t>' . $this->stringsEscaper->escape($cellValue) . '</t></is></c>';
} else {
$sharedStringId = $this->sharedStringsManager->writeString($cellValue);
$cellXMLFragment = ' t="s"><v>' . $sharedStringId . '</v></c>';
}
return $cellXMLFragment;
}
/**
* {@inheritdoc}
*/
public function close(Worksheet $worksheet)
{
$worksheetFilePointer = $worksheet->getFilePointer();
if (!\is_resource($worksheetFilePointer)) {
return;
}
\fwrite($worksheetFilePointer, '</sheetData>');
\fwrite($worksheetFilePointer, '</worksheet>');
\fclose($worksheetFilePointer);
}
}