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<?php
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/**
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* Specialized implementation of hook_page_manager_task_tasks(). See api-task.html for
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* more information.
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*/
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function page_manager_comment_reply_page_manager_tasks() {
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if (!module_exists('comment')) {
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return;
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}
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return array(
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// This is a 'page' task and will fall under the page admin UI
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'task type' => 'page',
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'title' => t('Comment Reply page'),
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'admin title' => t('Comment Reply page'),
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'admin description' => t('When enabled, this overrides the default Drupal behavior for the site contact page at <em>/contact</em>. If no variant is selected, the default Drupal contact form will be used.'),
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'admin path' => 'comment/reply/%node',
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// Menu hooks so that we can alter the node/%node menu entry to point to us.
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'hook menu alter' => 'page_manager_comment_reply_menu_alter',
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// This is task uses 'context' handlers and must implement these to give the
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// handler data it needs.
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'handler type' => 'context',
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'get arguments' => 'page_manager_comment_reply_get_arguments',
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'get context placeholders' => 'page_manager_comment_reply_get_contexts',
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// Allow this to be enabled or disabled:
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'disabled' => variable_get('page_manager_comment_reply_disabled', TRUE),
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'enable callback' => 'page_manager_comment_reply_enable',
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'access callback' => 'page_manager_comment_reply_check',
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);
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}
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/**
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* Callback to enable/disable the page from the UI.
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*/
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function page_manager_comment_reply_enable($cache, $status) {
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variable_set('page_manager_comment_reply_disabled', $status);
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// Set a global flag so that the menu routine knows it needs
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// to set a message if enabling cannot be done.
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if (!$status) {
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$GLOBALS['page_manager_enabling_comment_reply'] = TRUE;
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}
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}
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/**
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* Entry point for our overridden comment.
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*
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*/
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function page_manager_comment_reply_page($node, $pid = NULL){
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// Load my task plugin
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$task = page_manager_get_task('comment_reply');
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// Load the node into a context.
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ctools_include('context');
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ctools_include('context-task-handler');
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$contexts = ctools_context_handler_get_task_contexts($task, '', array($node, $pid));
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if (array_key_exists('argument_cid_3', $contexts) && $contexts['argument_cid_3']->data->nid != $node->nid) {
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// Attempting to reply to a comment not belonging to the current nid.
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drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
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drupal_goto("node/$node->nid");
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}
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$output = ctools_context_handler_render($task, '', $contexts, array($node, $pid));
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if ($output !== FALSE) {
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return $output;
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}
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$function = 'comment_reply';
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foreach (module_implements('page_manager_override') as $module) {
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$call = $module . '_page_manager_override';
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if (($rc = $call('comment_reply')) && function_exists($rc)) {
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$function = $rc;
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break;
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}
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}
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module_load_include('inc', 'comment', 'comment.pages');
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return $function($node, $pid);
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}
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/**
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* Callback to get arguments provided by this task handler.
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*
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* Since this is the node view and there is no UI on the arguments, we
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* create dummy arguments that contain the needed data.
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*/
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function page_manager_comment_reply_get_arguments($task, $subtask_id) {
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return array(
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array(
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'keyword' => 'node',
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'identifier' => t('Node being commented on'),
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'id' => 2,
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'name' => 'entity_id:node',
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'settings' => array(),
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),
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array(
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'keyword' => 'comment',
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'identifier' => t('Comment being replied to'),
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'id' => 3,
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'name' => 'entity_id:comment',
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'settings' => array(),
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),
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);
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}
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/**
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* Callback to get context placeholders provided by this handler.
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*/
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function page_manager_comment_reply_get_contexts($task, $subtask_id) {
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return ctools_context_get_placeholders_from_argument(page_manager_comment_reply_get_arguments($task, $subtask_id));
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}
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/**
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* Callback defined by page_manager_node_view_page_manager_tasks().
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*
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* Alter the node view input so that node view comes to us rather than the
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* normal node view process.
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*/
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function page_manager_comment_reply_menu_alter(&$items, $task) {
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if (variable_get('page_manager_comment_reply_disabled', TRUE)) {
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return;
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}
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// Override the node view handler for our purpose.
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$callback = $items['comment/reply/%node']['page callback'];
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if ($callback == 'comment_reply' || variable_get('page_manager_override_anyway', FALSE)) {
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$items['comment/reply/%node']['page callback'] = 'page_manager_comment_reply_page';
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$items['comment/reply/%node']['file path'] = $task['path'];
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$items['comment/reply/%node']['file'] = $task['file'];
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}
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else {
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// automatically disable this task if it cannot be enabled.
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variable_set('page_manager_comment_reply_disabled', TRUE);
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if (!empty($GLOBALS['page_manager_enabling_comment_reply'])) {
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drupal_set_message(t('Page manager module is unable to enable comment/reply/%node because some other module already has overridden with %callback.', array('%callback' => $callback)), 'error');
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}
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}
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// @todo override node revision handler as well?
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}
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/**
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* Callback to determine if a page is accessible.
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*
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* @param $task
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* The task plugin.
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* @param $subtask_id
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* The subtask id
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* @param $contexts
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* The contexts loaded for the task.
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* @return
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* TRUE if the current user can access the page.
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*/
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function page_manager_comment_reply_access_check($task, $subtask_id, $contexts) {
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$context = reset($contexts);
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return TRUE;
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}
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