221 lines
7.4 KiB
Plaintext
221 lines
7.4 KiB
Plaintext
<?php
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/**
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* @file
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* Defines simple text field types.
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*/
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use Drupal\Core\Entity\EntityInterface;
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/**
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* Implements hook_library_info().
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*/
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function text_library_info() {
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$libraries['drupal.text'] = array(
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'title' => 'Text',
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'version' => VERSION,
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'js' => array(
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drupal_get_path('module', 'text') . '/text.js' => array(),
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),
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'dependencies' => array(
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array('system', 'jquery'),
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array('system', 'jquery.once'),
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array('system', 'drupal'),
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),
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);
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return $libraries;
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}
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/**
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* Implements hook_help().
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*/
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function text_help($path, $arg) {
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switch ($path) {
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case 'admin/help#text':
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$output = '';
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$output .= '<h3>' . t('About') . '</h3>';
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$output .= '<p>' . t("The Text module defines various text field types for the Field module. A text field may contain plain text only, or optionally, may use Drupal's <a href='@filter-help'>text filters</a> to securely manage HTML output. Text input fields may be either a single line (text field), multiple lines (text area), or for greater input control, a select box, checkbox, or radio buttons. If desired, the field can be validated, so that it is limited to a set of allowed values. See the <a href='@field-help'>Field module help page</a> for more information about fields.", array('@field-help' => url('admin/help/field'), '@filter-help' => url('admin/help/filter'))) . '</p>';
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return $output;
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}
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}
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/**
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* Sanitizes the 'value' or 'summary' data of a text value.
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*
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* Depending on whether the field instance uses text processing, data is run
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* through check_plain() or check_markup().
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*
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* @param bool $text_processing
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* Whether to process the text via check_markup().
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* @param string $langcode
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* The language associated with $item.
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* @param array $item
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* The field value to sanitize.
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* @param string $column
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* The column to sanitize (either 'value' or 'summary').
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*
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* @return string
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* The sanitized string.
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*/
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function text_sanitize($text_processing, $langcode, $item, $column) {
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if (isset($item["safe_$column"])) {
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return $item["safe_$column"];
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}
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// Optimize by opting out for the trivial 'empty string' case.
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if ($item[$column] == '') {
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return '';
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}
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if ($text_processing) {
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return check_markup($item[$column], $item['format'], $langcode);
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}
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// Escape all HTML and retain newlines.
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// @see \Drupal\text\Plugin\field\formatter\TextPlainFormatter
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return nl2br(check_plain($item[$column]));
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}
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/**
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* Generates a trimmed, formatted version of a text field value.
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*
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* If the end of the summary is not indicated using the <!--break--> delimiter
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* then we generate the summary automatically, trying to end it at a sensible
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* place such as the end of a paragraph, a line break, or the end of a sentence
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* (in that order of preference).
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*
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* @param $text
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* The content for which a summary will be generated.
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* @param $format
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* The format of the content. If the PHP filter is present and $text contains
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* PHP code, we do not split it up to prevent parse errors. If the line break
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* filter is present then we treat newlines embedded in $text as line breaks.
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* If the htmlcorrector filter is present, it will be run on the generated
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* summary (if different from the incoming $text).
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* @param $size
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* The desired character length of the summary. If omitted, the default value
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* will be used. Ignored if the special delimiter is present in $text.
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*
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* @return
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* The generated summary.
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*/
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function text_summary($text, $format = NULL, $size = NULL) {
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if (!isset($size)) {
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$size = Drupal::config('text.settings')->get('default_summary_length');
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}
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// Find where the delimiter is in the body
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$delimiter = strpos($text, '<!--break-->');
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// If the size is zero, and there is no delimiter, the entire body is the summary.
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if ($size == 0 && $delimiter === FALSE) {
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return $text;
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}
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// If a valid delimiter has been specified, use it to chop off the summary.
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if ($delimiter !== FALSE) {
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return substr($text, 0, $delimiter);
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}
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// Retrieve the filters of the specified text format, if any.
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if (isset($format)) {
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$filters = filter_list_format($format);
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// If the specified format does not exist, return nothing. $text is already
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// filtered text, but the remainder of this function will not be able to
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// ensure a sane and secure summary.
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if (!$filters) {
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return '';
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}
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}
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// We check for the presence of the PHP evaluator filter in the current
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// format. If the body contains PHP code, we do not split it up to prevent
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// parse errors.
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if (isset($format) && $filters->has('php_code') && $filters->get('php_code')->status && strpos($text, '<?') !== FALSE) {
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return $text;
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}
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// If we have a short body, the entire body is the summary.
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if (drupal_strlen($text) <= $size) {
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return $text;
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}
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// If the delimiter has not been specified, try to split at paragraph or
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// sentence boundaries.
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// The summary may not be longer than maximum length specified. Initial slice.
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$summary = truncate_utf8($text, $size);
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// Store the actual length of the UTF8 string -- which might not be the same
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// as $size.
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$max_rpos = strlen($summary);
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// How much to cut off the end of the summary so that it doesn't end in the
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// middle of a paragraph, sentence, or word.
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// Initialize it to maximum in order to find the minimum.
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$min_rpos = $max_rpos;
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// Store the reverse of the summary. We use strpos on the reversed needle and
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// haystack for speed and convenience.
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$reversed = strrev($summary);
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// Build an array of arrays of break points grouped by preference.
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$break_points = array();
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// A paragraph near the end of sliced summary is most preferable.
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$break_points[] = array('</p>' => 0);
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// If no complete paragraph then treat line breaks as paragraphs.
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$line_breaks = array('<br />' => 6, '<br>' => 4);
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// Newline only indicates a line break if line break converter
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// filter is present.
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if (isset($format) && $filters->has('filter_autop') && $filters->get('filter_autop')->status) {
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$line_breaks["\n"] = 1;
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}
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$break_points[] = $line_breaks;
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// If the first paragraph is too long, split at the end of a sentence.
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$break_points[] = array('. ' => 1, '! ' => 1, '? ' => 1, '。' => 0, '؟ ' => 1);
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// Iterate over the groups of break points until a break point is found.
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foreach ($break_points as $points) {
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// Look for each break point, starting at the end of the summary.
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foreach ($points as $point => $offset) {
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// The summary is already reversed, but the break point isn't.
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$rpos = strpos($reversed, strrev($point));
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if ($rpos !== FALSE) {
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$min_rpos = min($rpos + $offset, $min_rpos);
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}
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}
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// If a break point was found in this group, slice and stop searching.
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if ($min_rpos !== $max_rpos) {
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// Don't slice with length 0. Length must be <0 to slice from RHS.
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$summary = ($min_rpos === 0) ? $summary : substr($summary, 0, 0 - $min_rpos);
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break;
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}
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}
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// If the htmlcorrector filter is present, apply it to the generated summary.
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if (isset($format) && $filters->has('filter_htmlcorrector') && $filters->get('filter_htmlcorrector')->status) {
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$summary = _filter_htmlcorrector($summary);
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}
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return $summary;
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}
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/**
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* Implements hook_filter_format_update().
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*/
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function text_filter_format_update($format) {
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field_cache_clear();
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}
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/**
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* Implements hook_filter_format_disable().
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*/
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function text_filter_format_disable($format) {
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field_cache_clear();
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}
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