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<?php
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// $Id: websnapr.module,v 1.1.2.2 2008/01/19 06:34:03 Gurpartap Exp $
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/**
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* @file
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* Display an overlay bubble on mouse hover, showing a hyperlink target
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* thumbnail, using the WebSnapr service.
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*/
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/**
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* Implementation of hook_help().
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*/
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function websnapr_help($page, $arg) {
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$output = '';
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switch ($page) {
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case 'admin/help#websnapr':
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$output .= '<p>' . t('The WebSnapr Preview Bubble module is a simple, unobtrusive script used to display an overlay bubble showing a hyperlink target thumbnail using WebSnapr. It is a snap to setup and works on all modern browsers. Check the demo at: <a href="http://www.websnapr.com/previewbubble/">http://www.websnapr.com/previewbubble/</a>');
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$output .= '<p>' . t('WebSnapr - Preview Bubble Javascript by Juan Xavier Larrea') . '</p>';
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break;
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case 'admin/settings/websnapr':
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$output .= '<p>' . t('Bubbles are always enabled for hyperlinks having class <em>previewlink</em>, irrespective of any configuration below.<br /><a href="!url" />Configure permissions</a> for user roles to view WebSnapr Preview Bubbles.', array('!url' => url('admin/user/permissions', array('fragment' => 'module-websnapr')))) . '</p>';
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}
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return $output;
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}
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/**
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* Implementation of hook_init().
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*/
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function websnapr_init() {
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if (user_access('view websnapr preview bubble')) {
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// Load the JS for WebSnapr
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websnapr_load_script();
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}
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}
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/**
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* Implementation of hook_menu().
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*/
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function websnapr_menu() {
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$items = array();
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$items['admin/settings/websnapr'] = array(
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'title' => 'WebSnapr Preview Bubble',
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'description' => 'Toggle site-wide usage of WebSnapr Preview Bubbles.',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('websnapr_settings'),
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'access callback' => 'user_access',
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'access arguments' => array('administer site configuration'),
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'type' => MENU_NORMAL_ITEM,
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);
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return $items;
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}
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/**
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* Implementation of hook_perm().
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*/
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function websnapr_perm() {
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return array('view websnapr preview bubble');
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}
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/**
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* Menu callback; Return a form for WebSnapr module settings.
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*/
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function websnapr_settings() {
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$form = array();
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$form['websnapr'] = array(
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'#type' => 'fieldset',
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'#title' => t('Basic settings'),
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);
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$form['websnapr']['websnapr_developer_key'] = array(
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'#type' => 'textfield',
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'#title' => t('WebSnapr Developer Key'),
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'#default_value' => variable_get('websnapr_developer_key', NULL),
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'#size' => 50,
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'#maxlength' => 250,
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'#required' => TRUE,
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'#description' => t("No key? !link - It's free and there is no catch!", array('!link' => l(t('Get yours here'), 'http://www.websnapr.com/'))),
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);
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$form['websnapr']['websnapr_preview_selector'] = array(
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'#type' => 'textfield',
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'#title' => t('CSS Selector'),
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'#default_value' => variable_get('websnapr_preview_selector', 'div.node a'),
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'#size' => 50,
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'#maxlength' => 250,
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'#description' => t('Enter <a href="http://www.w3.org/TR/css3-selectors/" title="Click to learn more about CSS Selectors"/>CSS Selectors</a> for HTML hyperlink tags, as implemented in jQuery, to enable WebSnapr Preview Bubble for. Separate multiple by comma.<br />For example:<br />
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<ul>
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<li>External links: <strong>a[@href^=http://]:not([@href*=!url])</strong></li>
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<li>Links with class <em>websnapr</em>: <strong>a.websnapr</strong></li>
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<li>Links only within nodes: <strong>div.node a</strong></li>
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<li>All links on site web pages: <strong>a</strong></li>
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</ul>!test', array('!test' => '[' . l(t('Hover to test the drupal.org snap.'), 'http://drupal.org/', array('attributes' => array('class' => 'previewlink'))) . ']', '!url' => $_SERVER['HTTP_HOST'])),
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);
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return system_settings_form($form);
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}
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/**
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* Load required JS and settings for WebSnapr Bubble Previews.
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*/
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function websnapr_load_script() {
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static $loaded;
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if (!$loaded) {
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$path = drupal_get_path('module', 'websnapr');
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// Add the JS settings.
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$settings = array(
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'websnapr' => array(
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'previewBubbleSelector' => variable_get('websnapr_preview_selector', 'div.node a'),
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'previewBubbleBG' => (base_path() . $path . '/images/bg.png'),
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'developerKey' => variable_get('websnapr_developer_key', NULL),
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),
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);
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drupal_add_js($settings, 'setting');
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// Add the WebSnapr service JS.
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drupal_add_js($path . '/js/websnapr.js');
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$loaded = TRUE;
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}
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return;
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}
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