<?php
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namespace PhpOffice\PhpSpreadsheet\Reader;
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use DOMDocument;
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use DOMElement;
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use DOMNode;
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use DOMText;
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use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
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use PhpOffice\PhpSpreadsheet\Reader\Security\XmlScanner;
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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use PhpOffice\PhpSpreadsheet\Style\Border;
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use PhpOffice\PhpSpreadsheet\Style\Color;
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use PhpOffice\PhpSpreadsheet\Style\Fill;
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use PhpOffice\PhpSpreadsheet\Style\Font;
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use PhpOffice\PhpSpreadsheet\Style\Style;
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use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
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use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
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/** PhpSpreadsheet root directory */
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class Html extends BaseReader
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{
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/**
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* Sample size to read to determine if it's HTML or not.
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*/
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const TEST_SAMPLE_SIZE = 2048;
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/**
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* Input encoding.
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*
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* @var string
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*/
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protected $inputEncoding = 'ANSI';
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/**
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* Sheet index to read.
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*
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* @var int
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*/
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protected $sheetIndex = 0;
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/**
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* Formats.
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*
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* @var array
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*/
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protected $formats = [
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'h1' => [
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'font' => [
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'bold' => true,
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'size' => 24,
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],
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], // Bold, 24pt
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'h2' => [
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'font' => [
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'bold' => true,
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'size' => 18,
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],
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], // Bold, 18pt
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'h3' => [
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'font' => [
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'bold' => true,
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'size' => 13.5,
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],
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], // Bold, 13.5pt
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'h4' => [
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'font' => [
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'bold' => true,
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'size' => 12,
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],
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], // Bold, 12pt
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'h5' => [
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'font' => [
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'bold' => true,
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'size' => 10,
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],
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], // Bold, 10pt
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'h6' => [
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'font' => [
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'bold' => true,
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'size' => 7.5,
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],
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], // Bold, 7.5pt
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'a' => [
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'font' => [
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'underline' => true,
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'color' => [
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'argb' => Color::COLOR_BLUE,
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],
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],
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], // Blue underlined
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'hr' => [
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'borders' => [
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'bottom' => [
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'borderStyle' => Border::BORDER_THIN,
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'color' => [
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Color::COLOR_BLACK,
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],
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],
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],
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], // Bottom border
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'strong' => [
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'font' => [
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'bold' => true,
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],
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], // Bold
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'b' => [
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'font' => [
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'bold' => true,
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],
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], // Bold
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'i' => [
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'font' => [
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'italic' => true,
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],
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], // Italic
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'em' => [
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'font' => [
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'italic' => true,
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],
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], // Italic
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];
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protected $rowspan = [];
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/**
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* Create a new HTML Reader instance.
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*/
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public function __construct()
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{
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parent::__construct();
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$this->securityScanner = XmlScanner::getInstance($this);
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}
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/**
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* Validate that the current file is an HTML file.
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*
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* @param string $pFilename
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*
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* @return bool
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*/
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public function canRead($pFilename)
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{
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// Check if file exists
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try {
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$this->openFile($pFilename);
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} catch (Exception $e) {
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return false;
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}
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$beginning = $this->readBeginning();
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$startWithTag = self::startsWithTag($beginning);
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$containsTags = self::containsTags($beginning);
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$endsWithTag = self::endsWithTag($this->readEnding());
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fclose($this->fileHandle);
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return $startWithTag && $containsTags && $endsWithTag;
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}
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private function readBeginning()
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{
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fseek($this->fileHandle, 0);
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return fread($this->fileHandle, self::TEST_SAMPLE_SIZE);
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}
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private function readEnding()
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{
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$meta = stream_get_meta_data($this->fileHandle);
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$filename = $meta['uri'];
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$size = filesize($filename);
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if ($size === 0) {
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return '';
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}
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$blockSize = self::TEST_SAMPLE_SIZE;
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if ($size < $blockSize) {
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$blockSize = $size;
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}
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fseek($this->fileHandle, $size - $blockSize);
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return fread($this->fileHandle, $blockSize);
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}
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private static function startsWithTag($data)
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{
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return '<' === substr(trim($data), 0, 1);
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}
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private static function endsWithTag($data)
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{
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return '>' === substr(trim($data), -1, 1);
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}
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private static function containsTags($data)
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{
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return strlen($data) !== strlen(strip_tags($data));
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}
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/**
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* Loads Spreadsheet from file.
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*
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* @param string $pFilename
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*
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* @throws Exception
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*
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* @return Spreadsheet
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*/
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public function load($pFilename)
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{
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// Create new Spreadsheet
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$spreadsheet = new Spreadsheet();
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// Load into this instance
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return $this->loadIntoExisting($pFilename, $spreadsheet);
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}
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/**
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* Set input encoding.
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*
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* @param string $pValue Input encoding, eg: 'ANSI'
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*
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* @return $this
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*/
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public function setInputEncoding($pValue)
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{
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$this->inputEncoding = $pValue;
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return $this;
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}
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/**
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* Get input encoding.
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*
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* @return string
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*/
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public function getInputEncoding()
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{
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return $this->inputEncoding;
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}
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// Data Array used for testing only, should write to Spreadsheet object on completion of tests
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protected $dataArray = [];
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protected $tableLevel = 0;
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protected $nestedColumn = ['A'];
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protected function setTableStartColumn($column)
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{
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if ($this->tableLevel == 0) {
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$column = 'A';
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}
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++$this->tableLevel;
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$this->nestedColumn[$this->tableLevel] = $column;
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return $this->nestedColumn[$this->tableLevel];
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}
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protected function getTableStartColumn()
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{
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return $this->nestedColumn[$this->tableLevel];
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}
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protected function releaseTableStartColumn()
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{
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--$this->tableLevel;
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return array_pop($this->nestedColumn);
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}
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protected function flushCell(Worksheet $sheet, $column, $row, &$cellContent)
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{
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if (is_string($cellContent)) {
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// Simple String content
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if (trim($cellContent) > '') {
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// Only actually write it if there's content in the string
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// Write to worksheet to be done here...
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// ... we return the cell so we can mess about with styles more easily
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$sheet->setCellValue($column . $row, $cellContent);
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$this->dataArray[$row][$column] = $cellContent;
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}
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} else {
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// We have a Rich Text run
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// TODO
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$this->dataArray[$row][$column] = 'RICH TEXT: ' . $cellContent;
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}
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$cellContent = (string) '';
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}
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/**
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* @param DOMNode $element
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* @param Worksheet $sheet
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* @param int $row
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* @param string $column
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* @param string $cellContent
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*/
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protected function processDomElement(DOMNode $element, Worksheet $sheet, &$row, &$column, &$cellContent)
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{
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foreach ($element->childNodes as $child) {
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if ($child instanceof DOMText) {
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$domText = preg_replace('/\s+/u', ' ', trim($child->nodeValue));
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if (is_string($cellContent)) {
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// simply append the text if the cell content is a plain text string
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$cellContent .= $domText;
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}
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// but if we have a rich text run instead, we need to append it correctly
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// TODO
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} elseif ($child instanceof DOMElement) {
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$attributeArray = [];
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foreach ($child->attributes as $attribute) {
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$attributeArray[$attribute->name] = $attribute->value;
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}
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switch ($child->nodeName) {
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case 'meta':
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foreach ($attributeArray as $attributeName => $attributeValue) {
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// Extract character set, so we can convert to UTF-8 if required
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if ($attributeName === 'charset') {
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$this->setInputEncoding($attributeValue);
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}
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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case 'title':
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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$sheet->setTitle($cellContent, true, false);
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$cellContent = '';
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break;
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case 'span':
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case 'div':
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case 'font':
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case 'i':
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case 'em':
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case 'strong':
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case 'b':
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if (isset($attributeArray['class']) && $attributeArray['class'] === 'comment') {
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$sheet->getComment($column . $row)
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->getText()
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->createTextRun($child->textContent);
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break;
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}
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if ($cellContent > '') {
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$cellContent .= ' ';
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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if ($cellContent > '') {
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$cellContent .= ' ';
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}
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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}
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break;
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case 'hr':
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$this->flushCell($sheet, $column, $row, $cellContent);
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++$row;
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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} else {
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$cellContent = '----------';
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$this->flushCell($sheet, $column, $row, $cellContent);
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}
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++$row;
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// Add a break after a horizontal rule, simply by allowing the code to dropthru
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// no break
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case 'br':
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if ($this->tableLevel > 0) {
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// If we're inside a table, replace with a \n and set the cell to wrap
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$cellContent .= "\n";
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$sheet->getStyle($column . $row)->getAlignment()->setWrapText(true);
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} else {
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// Otherwise flush our existing content and move the row cursor on
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$this->flushCell($sheet, $column, $row, $cellContent);
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++$row;
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}
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break;
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case 'a':
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foreach ($attributeArray as $attributeName => $attributeValue) {
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switch ($attributeName) {
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case 'href':
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$sheet->getCell($column . $row)->getHyperlink()->setUrl($attributeValue);
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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}
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break;
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case 'class':
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if ($attributeValue === 'comment-indicator') {
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break; // Ignore - it's just a red square.
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}
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}
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}
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$cellContent .= ' ';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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case 'h1':
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case 'h2':
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case 'h3':
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case 'h4':
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case 'h5':
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case 'h6':
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case 'ol':
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case 'ul':
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case 'p':
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if ($this->tableLevel > 0) {
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// If we're inside a table, replace with a \n
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$cellContent .= "\n";
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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} else {
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if ($cellContent > '') {
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$this->flushCell($sheet, $column, $row, $cellContent);
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++$row;
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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$this->flushCell($sheet, $column, $row, $cellContent);
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if (isset($this->formats[$child->nodeName])) {
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$sheet->getStyle($column . $row)->applyFromArray($this->formats[$child->nodeName]);
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}
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++$row;
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$column = 'A';
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}
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break;
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case 'li':
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if ($this->tableLevel > 0) {
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// If we're inside a table, replace with a \n
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$cellContent .= "\n";
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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} else {
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if ($cellContent > '') {
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$this->flushCell($sheet, $column, $row, $cellContent);
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}
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++$row;
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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$this->flushCell($sheet, $column, $row, $cellContent);
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$column = 'A';
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}
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break;
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case 'img':
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$this->insertImage($sheet, $column, $row, $attributeArray);
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break;
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case 'table':
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$this->flushCell($sheet, $column, $row, $cellContent);
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$column = $this->setTableStartColumn($column);
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if ($this->tableLevel > 1) {
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--$row;
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}
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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$column = $this->releaseTableStartColumn();
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if ($this->tableLevel > 1) {
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++$column;
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} else {
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++$row;
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}
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break;
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case 'thead':
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case 'tbody':
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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case 'tr':
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$column = $this->getTableStartColumn();
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$cellContent = '';
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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if (isset($attributeArray['height'])) {
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$sheet->getRowDimension($row)->setRowHeight($attributeArray['height']);
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}
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++$row;
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break;
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case 'th':
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case 'td':
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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while (isset($this->rowspan[$column . $row])) {
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++$column;
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}
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// apply inline style
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$this->applyInlineStyle($sheet, $row, $column, $attributeArray);
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$this->flushCell($sheet, $column, $row, $cellContent);
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if (isset($attributeArray['rowspan'], $attributeArray['colspan'])) {
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//create merging rowspan and colspan
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$columnTo = $column;
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for ($i = 0; $i < (int) $attributeArray['colspan'] - 1; ++$i) {
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++$columnTo;
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}
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$range = $column . $row . ':' . $columnTo . ($row + (int) $attributeArray['rowspan'] - 1);
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foreach (Coordinate::extractAllCellReferencesInRange($range) as $value) {
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$this->rowspan[$value] = true;
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}
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$sheet->mergeCells($range);
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$column = $columnTo;
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} elseif (isset($attributeArray['rowspan'])) {
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//create merging rowspan
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$range = $column . $row . ':' . $column . ($row + (int) $attributeArray['rowspan'] - 1);
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foreach (Coordinate::extractAllCellReferencesInRange($range) as $value) {
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$this->rowspan[$value] = true;
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}
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$sheet->mergeCells($range);
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} elseif (isset($attributeArray['colspan'])) {
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//create merging colspan
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$columnTo = $column;
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for ($i = 0; $i < (int) $attributeArray['colspan'] - 1; ++$i) {
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++$columnTo;
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}
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$sheet->mergeCells($column . $row . ':' . $columnTo . $row);
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$column = $columnTo;
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} elseif (isset($attributeArray['bgcolor'])) {
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$sheet->getStyle($column . $row)->applyFromArray(
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[
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'fill' => [
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'fillType' => Fill::FILL_SOLID,
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'color' => ['rgb' => $attributeArray['bgcolor']],
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],
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]
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);
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}
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if (isset($attributeArray['width'])) {
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$sheet->getColumnDimension($column)->setWidth($attributeArray['width']);
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}
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if (isset($attributeArray['height'])) {
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$sheet->getRowDimension($row)->setRowHeight($attributeArray['height']);
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}
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if (isset($attributeArray['align'])) {
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$sheet->getStyle($column . $row)->getAlignment()->setHorizontal($attributeArray['align']);
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}
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if (isset($attributeArray['valign'])) {
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$sheet->getStyle($column . $row)->getAlignment()->setVertical($attributeArray['valign']);
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}
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if (isset($attributeArray['data-format'])) {
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$sheet->getStyle($column . $row)->getNumberFormat()->setFormatCode($attributeArray['data-format']);
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}
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++$column;
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break;
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case 'body':
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$row = 1;
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$column = 'A';
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$cellContent = '';
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$this->tableLevel = 0;
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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break;
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default:
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$this->processDomElement($child, $sheet, $row, $column, $cellContent);
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}
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}
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}
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}
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/**
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* Loads PhpSpreadsheet from file into PhpSpreadsheet instance.
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*
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* @param string $pFilename
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* @param Spreadsheet $spreadsheet
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*
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* @throws Exception
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*
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* @return Spreadsheet
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*/
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public function loadIntoExisting($pFilename, Spreadsheet $spreadsheet)
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{
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// Validate
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if (!$this->canRead($pFilename)) {
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throw new Exception($pFilename . ' is an Invalid HTML file.');
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}
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// Create a new DOM object
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$dom = new DOMDocument();
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// Reload the HTML file into the DOM object
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$loaded = $dom->loadHTML(mb_convert_encoding($this->securityScanner->scanFile($pFilename), 'HTML-ENTITIES', 'UTF-8'));
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if ($loaded === false) {
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throw new Exception('Failed to load ' . $pFilename . ' as a DOM Document');
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}
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return $this->loadDocument($dom, $spreadsheet);
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}
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/**
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* Spreadsheet from content.
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*
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* @param string $content
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* @param null|Spreadsheet $spreadsheet
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*
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* @return Spreadsheet
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*/
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public function loadFromString($content, ?Spreadsheet $spreadsheet = null): Spreadsheet
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{
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// Create a new DOM object
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$dom = new DOMDocument();
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// Reload the HTML file into the DOM object
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$loaded = $dom->loadHTML(mb_convert_encoding($this->securityScanner->scan($content), 'HTML-ENTITIES', 'UTF-8'));
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if ($loaded === false) {
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throw new Exception('Failed to load content as a DOM Document');
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}
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return $this->loadDocument($dom, $spreadsheet ?? new Spreadsheet());
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}
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/**
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* Loads PhpSpreadsheet from DOMDocument into PhpSpreadsheet instance.
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*
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* @param DOMDocument $document
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* @param Spreadsheet $spreadsheet
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*
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* @throws \PhpOffice\PhpSpreadsheet\Exception
|
*
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* @return Spreadsheet
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*/
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private function loadDocument(DOMDocument $document, Spreadsheet $spreadsheet): Spreadsheet
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{
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while ($spreadsheet->getSheetCount() <= $this->sheetIndex) {
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$spreadsheet->createSheet();
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}
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$spreadsheet->setActiveSheetIndex($this->sheetIndex);
|
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// Discard white space
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$document->preserveWhiteSpace = false;
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$row = 0;
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$column = 'A';
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$content = '';
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$this->rowspan = [];
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$this->processDomElement($document, $spreadsheet->getActiveSheet(), $row, $column, $content);
|
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// Return
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return $spreadsheet;
|
}
|
|
/**
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* Get sheet index.
|
*
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* @return int
|
*/
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public function getSheetIndex()
|
{
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return $this->sheetIndex;
|
}
|
|
/**
|
* Set sheet index.
|
*
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* @param int $pValue Sheet index
|
*
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* @return $this
|
*/
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public function setSheetIndex($pValue)
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{
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$this->sheetIndex = $pValue;
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return $this;
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}
|
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/**
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* Apply inline css inline style.
|
*
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* NOTES :
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* Currently only intended for td & th element,
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* and only takes 'background-color' and 'color'; property with HEX color
|
*
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* TODO :
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* - Implement to other propertie, such as border
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*
|
* @param Worksheet $sheet
|
* @param int $row
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* @param string $column
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* @param array $attributeArray
|
*/
|
private function applyInlineStyle(&$sheet, $row, $column, $attributeArray)
|
{
|
if (!isset($attributeArray['style'])) {
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return;
|
}
|
|
$cellStyle = $sheet->getStyle($column . $row);
|
|
// add color styles (background & text) from dom element,currently support : td & th, using ONLY inline css style with RGB color
|
$styles = explode(';', $attributeArray['style']);
|
foreach ($styles as $st) {
|
$value = explode(':', $st);
|
$styleName = isset($value[0]) ? trim($value[0]) : null;
|
$styleValue = isset($value[1]) ? trim($value[1]) : null;
|
|
if (!$styleName) {
|
continue;
|
}
|
|
switch ($styleName) {
|
case 'background':
|
case 'background-color':
|
$styleColor = $this->getStyleColor($styleValue);
|
|
if (!$styleColor) {
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continue 2;
|
}
|
|
$cellStyle->applyFromArray(['fill' => ['fillType' => Fill::FILL_SOLID, 'color' => ['rgb' => $styleColor]]]);
|
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break;
|
case 'color':
|
$styleColor = $this->getStyleColor($styleValue);
|
|
if (!$styleColor) {
|
continue 2;
|
}
|
|
$cellStyle->applyFromArray(['font' => ['color' => ['rgb' => $styleColor]]]);
|
|
break;
|
|
case 'border':
|
$this->setBorderStyle($cellStyle, $styleValue, 'allBorders');
|
|
break;
|
|
case 'border-top':
|
$this->setBorderStyle($cellStyle, $styleValue, 'top');
|
|
break;
|
|
case 'border-bottom':
|
$this->setBorderStyle($cellStyle, $styleValue, 'bottom');
|
|
break;
|
|
case 'border-left':
|
$this->setBorderStyle($cellStyle, $styleValue, 'left');
|
|
break;
|
|
case 'border-right':
|
$this->setBorderStyle($cellStyle, $styleValue, 'right');
|
|
break;
|
|
case 'font-size':
|
$cellStyle->getFont()->setSize(
|
(float) $styleValue
|
);
|
|
break;
|
|
case 'font-weight':
|
if ($styleValue === 'bold' || $styleValue >= 500) {
|
$cellStyle->getFont()->setBold(true);
|
}
|
|
break;
|
|
case 'font-style':
|
if ($styleValue === 'italic') {
|
$cellStyle->getFont()->setItalic(true);
|
}
|
|
break;
|
|
case 'font-family':
|
$cellStyle->getFont()->setName(str_replace('\'', '', $styleValue));
|
|
break;
|
|
case 'text-decoration':
|
switch ($styleValue) {
|
case 'underline':
|
$cellStyle->getFont()->setUnderline(Font::UNDERLINE_SINGLE);
|
|
break;
|
case 'line-through':
|
$cellStyle->getFont()->setStrikethrough(true);
|
|
break;
|
}
|
|
break;
|
|
case 'text-align':
|
$cellStyle->getAlignment()->setHorizontal($styleValue);
|
|
break;
|
|
case 'vertical-align':
|
$cellStyle->getAlignment()->setVertical($styleValue);
|
|
break;
|
|
case 'width':
|
$sheet->getColumnDimension($column)->setWidth(
|
str_replace('px', '', $styleValue)
|
);
|
|
break;
|
|
case 'height':
|
$sheet->getRowDimension($row)->setRowHeight(
|
str_replace('px', '', $styleValue)
|
);
|
|
break;
|
|
case 'word-wrap':
|
$cellStyle->getAlignment()->setWrapText(
|
$styleValue === 'break-word'
|
);
|
|
break;
|
|
case 'text-indent':
|
$cellStyle->getAlignment()->setIndent(
|
(int) str_replace(['px'], '', $styleValue)
|
);
|
|
break;
|
}
|
}
|
}
|
|
/**
|
* Check if has #, so we can get clean hex.
|
*
|
* @param $value
|
*
|
* @return null|string
|
*/
|
public function getStyleColor($value)
|
{
|
if (strpos($value, '#') === 0) {
|
return substr($value, 1);
|
}
|
|
return null;
|
}
|
|
/**
|
* @param Worksheet $sheet
|
* @param string $column
|
* @param int $row
|
* @param array $attributes
|
*
|
* @throws \PhpOffice\PhpSpreadsheet\Exception
|
*/
|
private function insertImage(Worksheet $sheet, $column, $row, array $attributes)
|
{
|
if (!isset($attributes['src'])) {
|
return;
|
}
|
|
$src = urldecode($attributes['src']);
|
$width = isset($attributes['width']) ? (float) $attributes['width'] : null;
|
$height = isset($attributes['height']) ? (float) $attributes['height'] : null;
|
$name = isset($attributes['alt']) ? (float) $attributes['alt'] : null;
|
|
$drawing = new Drawing();
|
$drawing->setPath($src);
|
$drawing->setWorksheet($sheet);
|
$drawing->setCoordinates($column . $row);
|
$drawing->setOffsetX(0);
|
$drawing->setOffsetY(10);
|
$drawing->setResizeProportional(true);
|
|
if ($name) {
|
$drawing->setName($name);
|
}
|
|
if ($width) {
|
$drawing->setWidth((int) $width);
|
}
|
|
if ($height) {
|
$drawing->setHeight((int) $height);
|
}
|
|
$sheet->getColumnDimension($column)->setWidth(
|
$drawing->getWidth() / 6
|
);
|
|
$sheet->getRowDimension($row)->setRowHeight(
|
$drawing->getHeight() * 0.9
|
);
|
}
|
|
/**
|
* Map html border style to PhpSpreadsheet border style.
|
*
|
* @param string $style
|
*
|
* @return null|string
|
*/
|
public function getBorderStyle($style)
|
{
|
switch ($style) {
|
case 'solid':
|
return Border::BORDER_THIN;
|
case 'dashed':
|
return Border::BORDER_DASHED;
|
case 'dotted':
|
return Border::BORDER_DOTTED;
|
case 'medium':
|
return Border::BORDER_MEDIUM;
|
case 'thick':
|
return Border::BORDER_THICK;
|
case 'none':
|
return Border::BORDER_NONE;
|
case 'dash-dot':
|
return Border::BORDER_DASHDOT;
|
case 'dash-dot-dot':
|
return Border::BORDER_DASHDOTDOT;
|
case 'double':
|
return Border::BORDER_DOUBLE;
|
case 'hair':
|
return Border::BORDER_HAIR;
|
case 'medium-dash-dot':
|
return Border::BORDER_MEDIUMDASHDOT;
|
case 'medium-dash-dot-dot':
|
return Border::BORDER_MEDIUMDASHDOTDOT;
|
case 'medium-dashed':
|
return Border::BORDER_MEDIUMDASHED;
|
case 'slant-dash-dot':
|
return Border::BORDER_SLANTDASHDOT;
|
}
|
|
return null;
|
}
|
|
/**
|
* @param Style $cellStyle
|
* @param string $styleValue
|
* @param string $type
|
*/
|
private function setBorderStyle(Style $cellStyle, $styleValue, $type)
|
{
|
[, $borderStyle, $color] = explode(' ', $styleValue);
|
|
$cellStyle->applyFromArray([
|
'borders' => [
|
$type => [
|
'borderStyle' => $this->getBorderStyle($borderStyle),
|
'color' => ['rgb' => $this->getStyleColor($color)],
|
],
|
],
|
]);
|
}
|
}
|
