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<?php
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// $Id:
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/**
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* A Link to Site Module for Dog-park-USA.
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*/
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function link_to_us_perm() {
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return array('manage link_to_us');
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}
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/**
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* Implementation of hook_menu
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*/
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function link_to_us_menu($may_cache) {
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$access = user_access('manage link_to_us');
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$items = array();
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if ($may_cache) {
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$items[] = array(
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'path' => 'link_to',
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'title' => t('Link to page'),
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'callback' => 'link_to_us_controller',
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'access' => user_access('access content'),
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'type' => MENU_CALLBACK
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);
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$items[] = array(
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'path' => 'admin/settings/link_to_us',
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'title' => t('Link To Us'),
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'callback' => 'drupal_get_form',
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'callback arguments' => array('link_to_us_admin_settings'),
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'description' => t('Add a link_to_us link to pages.'),
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'access' => $access,
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);
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$items[] = array(
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'path' => 'admin/settings/link_to_us/images',
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'title' => t('Images'),
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'callback' => 'drupal_get_form',
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'callback arguments' => array('link_to_us_images_form'),
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'access' => $access,
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'type' => MENU_LOCAL_TASK
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);
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$items[] = array(
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'path' => 'admin/settings/link_to_us/list',
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'title' => t('Edit link_to_us settings'),
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'access' => $access,
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'type' => MENU_DEFAULT_LOCAL_TASK,
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'weight' => -10
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);
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$items[] = array(
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'path' => 'admin/settings/link_to_us/delete',
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'title' => t('Delete banner'),
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'callback' => 'drupal_get_form',
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'callback arguments' => array('link_to_us_delete_form'),
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'access' => $access,
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'type' => MENU_CALLBACK,
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);
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}
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return $items;
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}
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function link_to_us_add_link() {
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$path = 'link_to/'. $_GET['q'];
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return theme('link_to_us_link', $path);
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}
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function theme_link_to_us_link($path) {
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return l(t('Share this page'), $path, array('title' => 'Add a link to this page'));
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}
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function link_to_us_link($type, $node = NULL, $teaser = FALSE) {
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$links = array();
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$types = variable_get('link_to_us_nodes', NULL);
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if ($type == 'node' AND !$types[$node->type] == 0) {
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$links['link_to_us'] = array(
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'title' => t('Share this page'),
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'href' => 'link_to/node/' .$node->nid,
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'attributes' => array('class' => 'link_to_us', 'title' => 'Add a link to this page', 'rel' => 'nofollow')
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);
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}
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return $links;
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}
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//Much of this banner upload and admin code was borrowed from the user_badges module. Many thanks for paving the way.
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function link_to_us_admin_settings() {
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$form['link_to_us'] = array(
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'#type' => 'fieldset',
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'#title' => t('Link To Us Settings'),
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'#prefix' => t('Select how you want the link_to_us module to behave. To upload or delete images, go <a href="@here">here</a>.<br />All uploaded images will be used as link banners.', array('@here' => url('admin/settings/link_to_us/images'))),
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'#collapsible' => 0,
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'#collapsed' => 0,
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);
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$form['link_to_us']['link_to_us_header'] = array(
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'#type' => 'textarea',
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'#title' => 'Link page header',
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'#default_value' => variable_get('link_to_us_header', ''),
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'#description' => 'This text will appear at the top of the Link To Site page.',
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);
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$form['link_to_us']['link_to_us_textlink'] = array(
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'#type' => 'checkbox',
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'#title' => 'Show text only link',
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'#default_value' => variable_get('link_to_us_textlink', NULL),
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'#description' => 'Show an optional text only link. Will use the title of the node, category, or the Site name as needed.',
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);
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$form['link_to_us']['link_to_us_nodes'] = array(
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'#type' => 'checkboxes',
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'#title' => t('Node Types'),
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'#default_value' => variable_get('link_to_us_nodes', NULL),
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'#options' => array_map('check_plain', node_get_types('names')),
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'#description' => t('A list of node types you want to link_to links placed in the links section.'),
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'#required' => TRUE,
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);
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return system_settings_form($form);
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}
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function link_to_us_image_selects() {
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$selects = array();
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$dir = file_create_path('link_banners');
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$files = file_scan_directory($dir, '.*\.(gif|jpg|jpeg|png)', array('.', '..', 'CVS'), 0, FALSE);
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foreach ($files as $file) {
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$selects[$file->filename] = theme('image', $file->filename, $file->filename, $file->filename);
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}
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return $selects;
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}
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/**
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* Define a form to upload the banner images.
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*/
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function link_to_us_images_form() {
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$form = array('#skip_duplicate_check' => TRUE);
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if (module_exists('upload')) {
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$form['new']['upload'] = array('#type' => 'file', '#title' => t('Upload image'), '#size' => 40);
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$form['new']['attach'] = array('#type' => 'submit', '#value' => t('Upload'));
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}
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else {
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drupal_set_message(t('Upload of images requires the upload module to be enabled.'), 'error');
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}
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$form['#attributes']['enctype'] = 'multipart/form-data';
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$selects = link_to_us_image_selects();
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if (count($selects)) {
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$form['images'] = array('#tree' => TRUE);
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foreach ($selects as $imagepath => $imageimg) {
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$form['images'][$imagepath] = array(
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'#type' => 'checkbox',
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'#title' => $imageimg,
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'#return_value' => 1,
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'#default_value' => FALSE,
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'#description' => check_plain($imagepath),
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);
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}
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$form['delete_image'] = array(
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'#type' => 'submit',
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'#value' => t('Delete'),
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);
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}
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return $form;
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}
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/**
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* Validate the submission.
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*
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* Check whether:
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* Delete has been chosen AND a checkbox has been selected
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* OR
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* Upload has been chosen AND the file upload form is not empty.
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*/
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function link_to_us_images_form_validate($form_id, $form_values) {
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if ($form_values['op'] == t('Upload') && file_check_upload('upload') === FALSE ) {
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form_set_error('upload', t('Please enter the filename of an image to upload.'));
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}
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else if ($form_values['op'] == t('Delete')) {
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if (count(array_filter($form_values['images'])) == 0) {
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form_set_error('images', t('Please select images to delete.'));
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}
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}
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}
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function link_to_us_images_form_submit($form_id, $form_values) {
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$op = $form_values['op'];
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// Save uploaded files
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if ($op == t('Upload')) {
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$dir = file_create_path('link_banners');
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$is_writable = file_check_directory($dir, 1);
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if ($is_writable) {
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if( $source = file_check_upload('upload')) {
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// Security measure to prevent exploit of file.php.png
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$source->filename = upload_munge_filename($source->filename);
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if ($file = file_save_upload($source, $dir)) {
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if (image_get_info($file->filepath)) {
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drupal_set_message(t('New image saved.'));
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} else {
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file_delete($file->filepath);
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drupal_set_message('Uploaded file does not appear to be a valid image file. Please try again.');
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}
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}
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}
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}
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}
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else if ($op == t('Delete')) {
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foreach ($form_values['images'] as $path => $is_removed) {
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if ($is_removed) {
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$to_delete[] = $path;
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}
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}
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if (is_array($to_delete)) {
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link_to_us_image_delete($to_delete);
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}
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}
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}
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function link_to_us_image_delete($to_delete) {
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foreach ($to_delete as $path) {
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if (file_check_location($path, file_create_path('banners'))) {
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file_delete($path);
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}
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}
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}
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function link_to_us_controller() {
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$i = 1;
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$go = 1;
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$args = array();
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while ($go) {
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$arg = arg($i);
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if (!empty($arg)) {
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$args[] = $arg;
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} else {
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$go = 0;
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}
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$i++;
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}
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$images = link_to_us_image_selects();
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if ($args[0] == 'node' AND is_numeric($args[1])) {
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$url = implode("/", $args);
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$path = drupal_get_path_alias($url);
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$title = db_result(db_query("SELECT title FROM {node} WHERE nid = %d", $args[1]));
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} else if ($args[0] == 'taxonomy' AND $args[1] == 'term' and is_numeric($args[2])) {
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$url = implode("/", $args);
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$path = drupal_get_path_alias($url);
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$term = taxonomy_get_term($args[2]);
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$title = $term->name .' Dog Parks';
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} else {
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$url = "/";
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$path = drupal_get_path_alias($url);
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$title = variable_get('site_name', 'Drupal');
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}
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//Make and absolute path since this will be displayed on other sites.
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$path = url($path, NULL, NULL, TRUE);
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if (variable_get('link_to_us_textlink', NULL)) {
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$links[] = array(
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'link' => '<a href="'. $path .'" title="'. $title .'">'. $title .'</a>',
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'banner' => '',
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);
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}
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foreach ($images as $imagepath => $image) {
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$links[] = array(
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'link' => '<a href="'. $path .'" title="'. $title .'"><img src="'. url($imagepath, NULL, NULL, TRUE) .'" alt="'. $title .'" title="'. $title .'"></a>',
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'banner' => '<img src="'. url($imagepath, NULL, NULL, TRUE) .'" alt="'. $title .'" title="'. $title .'">',
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);
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}
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return theme('link_to_us_banners', $links);
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}
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function theme_link_to_us_banners($links) {
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$output = '<div class="content"><p>'. variable_get('link_to_us_header', '') .'</p></div>';
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foreach ($links as $link) {
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if (empty($link['banner'])){
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$output .= '<div class="banner-help">Paste HTML for a Text-Only link:</div>';
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$output .= '<div class="banner-link">'. $link['link'] .'</div>';
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$output .= '<input id="linkurl" type="text" class="link_input" tabindex="400" value="'. check_plain($link['link']) .'"/>';
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} else {
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$output .= '<div class="banner-help">Paste HTML for this Banner as a Link:</div>';
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$output .= '<div class="banner-link">'. $link['banner'] .'</div>';
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$output .= '<input id="linkurl" type="text" class="link_input" tabindex="400" value="'. check_plain($link['link']) .'"/>';
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}
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}
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return $output;
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}
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