177 lines
6.0 KiB
Plaintext
177 lines
6.0 KiB
Plaintext
<?php
|
|
|
|
/**
|
|
* @file
|
|
* Defines simple text field types.
|
|
*/
|
|
|
|
use Drupal\Core\Entity\EntityInterface;
|
|
|
|
/**
|
|
* Implements hook_library_info().
|
|
*/
|
|
function text_library_info() {
|
|
$libraries['drupal.text'] = array(
|
|
'title' => 'Text',
|
|
'version' => \Drupal::VERSION,
|
|
'js' => array(
|
|
drupal_get_path('module', 'text') . '/text.js' => array(),
|
|
),
|
|
'dependencies' => array(
|
|
array('system', 'jquery'),
|
|
array('system', 'jquery.once'),
|
|
array('system', 'drupal'),
|
|
),
|
|
);
|
|
|
|
return $libraries;
|
|
}
|
|
|
|
/**
|
|
* Implements hook_help().
|
|
*/
|
|
function text_help($path, $arg) {
|
|
switch ($path) {
|
|
case 'admin/help#text':
|
|
$output = '';
|
|
$output .= '<h3>' . t('About') . '</h3>';
|
|
$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>';
|
|
return $output;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generates a trimmed, formatted version of a text field value.
|
|
*
|
|
* If the end of the summary is not indicated using the <!--break--> delimiter
|
|
* then we generate the summary automatically, trying to end it at a sensible
|
|
* place such as the end of a paragraph, a line break, or the end of a sentence
|
|
* (in that order of preference).
|
|
*
|
|
* @param $text
|
|
* The content for which a summary will be generated.
|
|
* @param $format
|
|
* The format of the content. If the line break filter is present then we
|
|
* treat newlines embedded in $text as line breaks. If the htmlcorrector
|
|
* filter is present, it will be run on the generated summary (if different
|
|
* from the incoming $text).
|
|
* @param $size
|
|
* The desired character length of the summary. If omitted, the default value
|
|
* will be used. Ignored if the special delimiter is present in $text.
|
|
*
|
|
* @return
|
|
* The generated summary.
|
|
*/
|
|
function text_summary($text, $format = NULL, $size = NULL) {
|
|
|
|
if (!isset($size)) {
|
|
$size = \Drupal::config('text.settings')->get('default_summary_length');
|
|
}
|
|
|
|
// Find where the delimiter is in the body
|
|
$delimiter = strpos($text, '<!--break-->');
|
|
|
|
// If the size is zero, and there is no delimiter, the entire body is the summary.
|
|
if ($size == 0 && $delimiter === FALSE) {
|
|
return $text;
|
|
}
|
|
|
|
// If a valid delimiter has been specified, use it to chop off the summary.
|
|
if ($delimiter !== FALSE) {
|
|
return substr($text, 0, $delimiter);
|
|
}
|
|
|
|
// Retrieve the filters of the specified text format, if any.
|
|
if (isset($format)) {
|
|
$filters = entity_load('filter_format', $format)->filters();
|
|
// If the specified format does not exist, return nothing. $text is already
|
|
// filtered text, but the remainder of this function will not be able to
|
|
// ensure a sane and secure summary.
|
|
if (!$filters) {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
// If we have a short body, the entire body is the summary.
|
|
if (drupal_strlen($text) <= $size) {
|
|
return $text;
|
|
}
|
|
|
|
// If the delimiter has not been specified, try to split at paragraph or
|
|
// sentence boundaries.
|
|
|
|
// The summary may not be longer than maximum length specified. Initial slice.
|
|
$summary = truncate_utf8($text, $size);
|
|
|
|
// Store the actual length of the UTF8 string -- which might not be the same
|
|
// as $size.
|
|
$max_rpos = strlen($summary);
|
|
|
|
// How much to cut off the end of the summary so that it doesn't end in the
|
|
// middle of a paragraph, sentence, or word.
|
|
// Initialize it to maximum in order to find the minimum.
|
|
$min_rpos = $max_rpos;
|
|
|
|
// Store the reverse of the summary. We use strpos on the reversed needle and
|
|
// haystack for speed and convenience.
|
|
$reversed = strrev($summary);
|
|
|
|
// Build an array of arrays of break points grouped by preference.
|
|
$break_points = array();
|
|
|
|
// A paragraph near the end of sliced summary is most preferable.
|
|
$break_points[] = array('</p>' => 0);
|
|
|
|
// If no complete paragraph then treat line breaks as paragraphs.
|
|
$line_breaks = array('<br />' => 6, '<br>' => 4);
|
|
// Newline only indicates a line break if line break converter
|
|
// filter is present.
|
|
if (isset($format) && $filters->has('filter_autop') && $filters->get('filter_autop')->status) {
|
|
$line_breaks["\n"] = 1;
|
|
}
|
|
$break_points[] = $line_breaks;
|
|
|
|
// If the first paragraph is too long, split at the end of a sentence.
|
|
$break_points[] = array('. ' => 1, '! ' => 1, '? ' => 1, '。' => 0, '؟ ' => 1);
|
|
|
|
// Iterate over the groups of break points until a break point is found.
|
|
foreach ($break_points as $points) {
|
|
// Look for each break point, starting at the end of the summary.
|
|
foreach ($points as $point => $offset) {
|
|
// The summary is already reversed, but the break point isn't.
|
|
$rpos = strpos($reversed, strrev($point));
|
|
if ($rpos !== FALSE) {
|
|
$min_rpos = min($rpos + $offset, $min_rpos);
|
|
}
|
|
}
|
|
|
|
// If a break point was found in this group, slice and stop searching.
|
|
if ($min_rpos !== $max_rpos) {
|
|
// Don't slice with length 0. Length must be <0 to slice from RHS.
|
|
$summary = ($min_rpos === 0) ? $summary : substr($summary, 0, 0 - $min_rpos);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If the htmlcorrector filter is present, apply it to the generated summary.
|
|
if (isset($format) && $filters->has('filter_htmlcorrector') && $filters->get('filter_htmlcorrector')->status) {
|
|
$summary = _filter_htmlcorrector($summary);
|
|
}
|
|
|
|
return $summary;
|
|
}
|
|
|
|
/**
|
|
* Implements hook_filter_format_update().
|
|
*/
|
|
function text_filter_format_update($format) {
|
|
field_cache_clear();
|
|
}
|
|
|
|
/**
|
|
* Implements hook_filter_format_disable().
|
|
*/
|
|
function text_filter_format_disable($format) {
|
|
field_cache_clear();
|
|
}
|