Merge pull request #13254 from Tim-Otte/add-odt-converter
NEW Support some HTML contents into ODT documents
This commit is contained in:
Laurent Destailleur
GitHub
commit
36e6dd9d8e
@ -141,17 +141,239 @@ class Odf
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//}
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}
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$value=$this->htmlToUTFAndPreOdf($value);
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$value = $encode ? htmlspecialchars($value) : $value;
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$value = ($charset == 'ISO-8859') ? utf8_encode($value) : $value;
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$value=$this->preOdfToOdf($value);
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// Check if the value includes html tags
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if ($this->_hasHtmlTag($value) === true) {
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// Default styles for strong/b, i/em, u, s, sub & sup
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$automaticStyles = array(
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'<style:style style:name="boldText" style:family="text"><style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold" /></style:style>',
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'<style:style style:name="italicText" style:family="text"><style:text-properties fo:font-style="italic" style:font-style-asian="italic" style:font-style-complex="italic" /></style:style>',
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'<style:style style:name="underlineText" style:family="text"><style:text-properties style:text-underline-style="solid" style:text-underline-width="auto" style:text-underline-color="font-color" /></style:style>',
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'<style:style style:name="strikethroughText" style:family="text"><style:text-properties style:text-line-through-style="solid" style:text-line-through-type="single" /></style:style>',
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'<style:style style:name="subText" style:family="text"><style:text-properties style:text-position="sub 58%" /></style:style>',
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'<style:style style:name="supText" style:family="text"><style:text-properties style:text-position="super 58%" /></style:style>'
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);
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$this->vars[$tag] = $this->_replaceHtmlWithOdtTag($this->_getDataFromHtml($value), $customStyles, $fontDeclarations);
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foreach ($customStyles as $key => $val) {
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array_push($automaticStyles, '<style:style style:name="customStyle' . $key . '" style:family="text">' . $val . '</style:style>');
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}
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$this->vars[$tag] = $value;
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// Join the styles and add them to the content xml
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$styles = '';
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foreach ($automaticStyles as $style) {
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if (strpos($this->contentXml, $style) === false) {
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$styles .= $style;
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}
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}
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$this->contentXml = str_replace('</office:automatic-styles>', $styles . '</office:automatic-styles>', $this->contentXml);
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// Join the font declarations and add them to the content xml
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$fonts = '';
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foreach ($fontDeclarations as $font) {
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if (strpos($this->contentXml, 'style:name="' . $font . '"') === false) {
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$fonts .= '<style:font-face style:name="' . $font . '" svg:font-family="\'' . $font . '\'" />';
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}
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}
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$this->contentXml = str_replace('</office:font-face-decls>', $fonts . '</office:font-face-decls>', $this->contentXml);
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}
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else $this->vars[$tag] = preg_replace('/(\r\n|\r|\n)/i', "<text:line-break/>", $value);
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return $this;
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}
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/**
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* Replaces html tags in with odt tags and returns an odt string
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* @param array $tags An array with html tags generated by the getDataFromHtml() function
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* @param array $customStyles An array of style defenitions that should be included inside the odt file
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* @param array $fontDeclarations An array of font declarations that should be included inside the odt file
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* @return string
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*/
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private function _replaceHtmlWithOdtTag($tags, &$customStyles, &$fontDeclarations)
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{
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if ($customStyles == null) $customStyles = array();
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if ($fontDeclarations == null) $fontDeclarations = array();
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$odtResult = '';
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foreach ((array) $tags as $tag) {
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// Check if the current item is a tag or just plain text
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if (isset($tag['text'])) {
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$odtResult .= $tag['text'];
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} elseif (isset($tag['name'])) {
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switch ($tag['name']) {
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case 'br':
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$odtResult .= '<text:line-break/>';
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break;
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case 'strong':
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case 'b':
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$odtResult .= '<text:span text:style-name="boldText">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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break;
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case 'i':
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case 'em':
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$odtResult .= '<text:span text:style-name="italicText">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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break;
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case 'u':
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$odtResult .= '<text:span text:style-name="underlineText">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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break;
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case 's':
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$odtResult .= '<text:span text:style-name="strikethroughText">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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break;
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case 'sub':
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$odtResult .= '<text:span text:style-name="subText">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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break;
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case 'sup':
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$odtResult .= '<text:span text:style-name="supText">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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break;
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case 'span':
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if (isset($tag['attributes']['style'])) {
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$odtStyles = '';
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foreach ($tag['attributes']['style'] as $styleName => $styleValue) {
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switch ($styleName) {
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case 'font-family':
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$fontName = $styleValue;
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if (strpos($fontName, ',') !== false) {
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$fontName = explode(',', $fontName)[0];
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}
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if (!in_array($fontName, $fontDeclarations)) {
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array_push($fontDeclarations, $fontName);
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}
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$odtStyles .= '<style:text-properties style:font-name="' . $fontName . '" />';
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break;
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case 'font-size':
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if (preg_match('/([0-9]+)\s?(px|pt)/', $styleValue, $matches)) {
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$fontSize = intval($matches[1]);
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if ($matches[2] == 'px') {
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$fontSize = round($fontSize * 0.75);
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}
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$odtStyles .= '<style:text-properties fo:font-size="' . $fontSize . 'pt" style:font-size-asian="' . $fontSize . 'pt" style:font-size-complex="' . $fontSize . 'pt" />';
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}
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break;
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case 'color':
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if (preg_match('/#[0-9A-Fa-f]{3}(?:[0-9A-Fa-f]{3})?/', $styleValue)) {
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$odtStyles .= '<style:text-properties fo:color="' . $styleValue . '" />';
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}
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break;
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}
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}
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if (strlen($odtStyles) > 0) {
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// Generate a unique id for the style (using microtime and random because some CPUs are really fast...)
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$key = floatval(str_replace('.', '', microtime(true)))+rand(0, 10);
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$customStyles[$key] = $odtStyles;
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$odtResult .= '<text:span text:style-name="customStyle' . $key . '">' . ($tag['children'] != null ? $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations) : $tag['innerText']) . '</text:span>';
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}
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}
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break;
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default:
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$odtResult .= $this->_replaceHtmlWithOdtTag($tag['children'], $customStyles, $fontDeclarations);
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break;
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}
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}
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}
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return $odtResult;
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}
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/**
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* Checks if the given text is a html string
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* @param string $text The text to check
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* @return bool
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*/
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private function _isHtmlTag($text)
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{
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return preg_match('/<([A-Za-z]+)(?:\s([A-Za-z]+(?:\-[A-Za-z]+)?(?:=(?:".*?")|(?:[0-9]+))))*(?:(?:\s\/>)|(?:>(.*)<\/\1>))/', $text);
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}
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/**
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* Checks if the given text includes a html string
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* @param string $text The text to check
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* @return bool
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*/
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private function _hasHtmlTag($text)
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{
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$result = preg_match_all('/<([A-Za-z]+)(?:\s([A-Za-z]+(?:\-[A-Za-z]+)?(?:=(?:".*?")|(?:[0-9]+))))*(?:(?:\s\/>)|(?:>(.*)<\/\1>))/', $text);
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return is_numeric($result) && $result > 0;
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}
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/**
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* Returns an array of html elements
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* @param string $html A string with html tags
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* @return array
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*/
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private function _getDataFromHtml($html)
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{
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$tags = array();
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$tempHtml = $html;
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while (strlen($tempHtml) > 0) {
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// Check if the string includes a html tag
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if (preg_match_all('/<([A-Za-z]+)(?:\s([A-Za-z]+(?:\-[A-Za-z]+)?(?:=(?:".*?")|(?:[0-9]+))))*(?:(?:\s\/>)|(?:>(.*)<\/\1>))/', $tempHtml, $matches)) {
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$tagOffset = strpos($tempHtml, $matches[0][0]);
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// Check if the string starts with the html tag
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if ($tagOffset > 0) {
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// Push the text infront of the html tag to the result array
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array_push($tags, array(
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'text' => substr($tempHtml, 0, $tagOffset)
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));
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// Remove the text from the string
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$tempHtml = substr($tempHtml, $tagOffset);
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}
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// Extract the attribute data from the html tag
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preg_match_all('/([0-9A-Za-z]+(?:="[0-9A-Za-z\:\-\s\,\;]*")?)+/', $matches[2][0], $explodedAttributes);
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$explodedAttributes = array_filter($explodedAttributes[0]);
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$attributes = array();
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// Store each attribute with its name in the $attributes array
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$explodedAttributesCount = count($explodedAttributes);
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for ($i=0; $i<$explodedAttributesCount; $i++) {
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$attribute = trim($explodedAttributes[$i]);
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// Check if the attribute has a value (like style="") or has no value (like required)
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if (strpos($attribute, '=') !== false) {
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$splitAttribute = explode('=', $attribute);
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$attrName = trim($splitAttribute[0]);
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$attrValue = trim(str_replace('"', '', $splitAttribute[1]));
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// check if the current attribute is a style attribute
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if (strtolower($attrName) == 'style') {
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$attributes[$attrName] = array();
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if (strpos($attrValue, ';') !== false) {
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// Split the style properties and store them in an array
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$explodedStyles = explode(';', $attrValue);
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$explodedStylesCount = count($explodedStyles);
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for ($n=0; $n<$explodedStylesCount; $n++) {
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$splitStyle = explode(':', $explodedStyles[$n]);
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$attributes[$attrName][trim($splitStyle[0])] = trim($splitStyle[1]);
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}
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} else {
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$splitStyle = explode(':', $attrValue);
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$attributes[$attrName][trim($splitStyle[0])] = trim($splitStyle[1]);
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}
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} else {
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// Store the value directly in the $attributes array if this is not the style attribute
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$attributes[$attrName] = $attrValue;
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}
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} else {
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$attributes[trim($attribute)] = true;
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}
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}
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// Push the html tag data to the result array
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array_push($tags, array(
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'name' => $matches[1][0],
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'attributes' => $attributes,
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'innerText' => strip_tags($matches[3][0]),
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'children' => $this->_hasHtmlTag($matches[3][0]) ? $this->_getDataFromHtml($matches[3][0]) : null
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));
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// Remove the processed html tag from the html string
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$tempHtml = substr($tempHtml, strlen($matches[0][0]));
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} else {
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array_push($tags, array(
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'text' => $tempHtml
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));
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$tempHtml = '';
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}
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}
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return $tags;
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}
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/**
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* Function to convert a HTML string into an ODT string
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