185 lines
7.8 KiB
Plaintext
185 lines
7.8 KiB
Plaintext
<?php
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function extlink_menu() {
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$items = array();
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$items['admin/config/user-interface/extlink'] = array(
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'title' => 'External links',
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'description' => 'Alter the display of external links on the site.',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('extlink_admin_settings'),
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'access callback' => 'user_access',
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'access arguments' => array('administer site configuration'),
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);
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return $items;
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}
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/**
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* Implementation of hook_init().
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*/
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function extlink_page_build() {
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$path = drupal_get_path('module', 'extlink');
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drupal_add_js($path .'/extlink.js', array('every_page' => TRUE));
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drupal_add_js(array('extlink' => array(
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'extTarget' => variable_get('extlink_target', 0),
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'extClass' => variable_get('extlink_class', 'ext'),
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'extSubdomains' => variable_get('extlink_subdomains', 1),
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'extExclude' => variable_get('extlink_exclude', ''),
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'extInclude' => variable_get('extlink_include', ''),
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'extCssExclude' => variable_get('extlink_css_exclude', ''),
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'extCssExplicit' => variable_get('extlink_css_explicit', ''),
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'extAlert' => variable_get('extlink_alert', 0),
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'extAlertText' => variable_get('extlink_alert_text', 'This link will take you to an external web site. We are not responsible for their content.'),
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'mailtoClass' => variable_get('extlink_mailto_class', 'mailto'))), 'setting'
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);
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}
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function extlink_admin_settings() {
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$form = array();
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$form['extlink_class'] = array(
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'#type' => 'checkbox',
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'#title' => t('Place an icon next to external links.'),
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'#return_value' => 'ext',
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'#default_value' => variable_get('extlink_class', 'ext'),
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'#description' => t('Places an !icon icon next to external links.', array('!icon' => theme('image', array('path' => drupal_get_path('module', 'extlink') . '/extlink.png', 'alt' => t('External Links icon'))))),
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);
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$form['extlink_mailto_class'] = array(
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'#type' => 'checkbox',
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'#title' => t('Place an icon next to mailto links'),
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'#return_value' => 'mailto',
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'#default_value' => variable_get('extlink_mailto_class', 'mailto'),
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'#description' => t('Places an !icon icon next to mailto links.', array('!icon' => theme('image',array('path' => drupal_get_path('module', 'extlink') . '/mailto.png', 'alt' => t('Email links icon'))))),
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);
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$form['extlink_subdomains'] = array(
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'#type' => 'checkbox',
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'#title' => t('Exclude links with the same primary domain.'),
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'#default_value' => variable_get('extlink_subdomains', 1),
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'#description' => t("For example, a link from 'www.example.com' to the subdomain of 'my.example.com' would be excluded."),
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);
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$form['extlink_target'] = array(
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'#type' => 'checkbox',
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'#title' => t('Open external links in a new window'),
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'#return_value' => '_blank',
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'#default_value' => variable_get('extlink_target', 0),
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);
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$form['extlink_alert'] = array(
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'#type' => 'checkbox',
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'#title' => t('Display a pop-up warning when any external link is clicked.'),
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'#return_value' => '_blank',
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'#default_value' => variable_get('extlink_alert', 0),
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);
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$form['extlink_alert_text'] = array(
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'#type' => 'textarea',
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'#title' => t('Text to display in the pop-up warning box.'),
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'#rows' => 3,
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'#default_value' => variable_get('extlink_alert_text', 'This link will take you to an external web site.'),
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'#wysiwyg' => FALSE,
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'#states' => array(
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// Only show this field when user opts to display a pop-up warning.
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'visible' => array(
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':input[name="extlink_alert"]' => array('checked' => TRUE),
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),
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),
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);
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$patterns = array(
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'<em>(example\.com)</em> ' . t('Matches example.com.'),
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'<em>(example\.com)|(example\.net)</em> ' . t('Multiple patterns can be strung together by using a pipe. Matches example.com OR example.net.'),
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'<em>(links/goto/[0-9]+/[0-9]+)</em> ' . t('Matches links that go through the <a href="http://drupal.org/project/links">Links module</a> redirect.'),
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);
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$wildcards = array(
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'<em>.</em> ' . t('Matches any character.'),
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'<em>?</em> ' . t('The previous character or set is optional.'),
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'<em>\d</em> ' . t('Matches any digit (0-9).'),
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'<em>[a-z]</em> ' . t('Brackets may be used to match a custom set of characters. This matches any alphabetic letter.'),
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);
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$form['patterns'] = array(
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'#tree' => FALSE,
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'#type' => 'fieldset',
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'#title' => t('Pattern matching'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#description' =>
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'<p>' . t('External links uses patterns (regular expressions) to match the "href" property of links.') . '</p>' .
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t('Here are some common patterns.') .
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theme('item_list', array('items' => $patterns)) .
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t('Common special characters:') .
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theme('item_list', array('items' => $wildcards)) .
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'<p>' . t('All special characters (<em>^ $ . ? ( ) | * +</em>) must also be escaped with backslashes. Patterns are not case-sensitive. Any <a href="http://www.javascriptkit.com/javatutors/redev2.shtml">pattern supported by JavaScript</a> may be used.') . '</p>',
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);
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$form['patterns']['extlink_exclude'] = array(
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'#type' => 'textfield',
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'#title' => t('Exclude links matching the pattern'),
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'#maxlength' => NULL,
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'#default_value' => variable_get('extlink_exclude', ''),
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'#description' => t('Enter a regular expression for links that you wish to exclude from being considered external.'),
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);
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$form['patterns']['extlink_include'] = array(
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'#type' => 'textfield',
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'#title' => t('Include links matching the pattern'),
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'#maxlength' => NULL,
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'#default_value' => variable_get('extlink_include', ''),
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'#description' => t('Enter a regular expression for internal links that you wish to be considered external.'),
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);
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$form['css_matching'] = array(
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'#tree' => FALSE,
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'#type' => 'fieldset',
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'#title' => t('CSS Matching'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#description' =>
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'<p>' . t('Use CSS selectors to exclude entirely or only look inside explicitly specified classes and IDs for external links. These will be passed straight to jQuery for matching.') . '</p>',
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);
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$form['css_matching']['extlink_css_exclude'] = array(
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'#type' => 'textarea',
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'#title' => t('Exclude links inside these CSS selectors'),
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'#maxlength' => NULL,
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'#default_value' => variable_get('extlink_css_exclude', ''),
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'#description' => t('Enter a comma-separated list of CSS selectors (ie "#block-block-2 .content, ul.menu")'),
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);
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$form['css_matching']['extlink_css_explicit'] = array(
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'#type' => 'textarea',
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'#title' => t('Only look for links inside these CSS selectors'),
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'#maxlength' => NULL,
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'#default_value' => variable_get('extlink_css_explicit', ''),
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'#description' => t('Enter a comma-separated list of CSS selectors (ie "#block-block-2 .content, ul.menu")'),
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);
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return system_settings_form($form);
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}
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function extlink_admin_settings_validate($form, &$form_state) {
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// Check if the exclude pattern is a valid regular expression
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if ($exclude = $form_state['values']['extlink_exclude']) {
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// Testing the regex via replace
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$regexeval = @preg_replace('/' . $exclude . '/', '', 'Lorem ipsum');
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// If the regex returns NULL, then throw an error and reset the variable
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if ($regexeval === NULL) {
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form_set_error('extlink_exclude', t('Invalid regular expression.'));
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variable_set('extlink_exclude', '');
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}
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}
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// Check if the include pattern is a valid regular expression
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if ($include = $form_state['values']['extlink_include']) {
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// Testing the regex via replace
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$regexeval = @preg_replace('/' . $include . '/', '', 'Lorem ipsum');
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// If the regex returns NULL, then throw an error and reset the variable
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if ($regexeval === NULL) {
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form_set_error('extlink_include', t('Invalid regular expression.'));
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variable_set('extlink_include', '');
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}
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}
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}
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