123 lines
4.6 KiB
JavaScript
123 lines
4.6 KiB
JavaScript
/**
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* Attaches behaviors for the Tracker module's History module integration.
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*
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* May only be loaded for authenticated users, with the History module enabled.
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*/
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(function ($, Drupal, window) {
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'use strict';
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/**
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* Render "new" and "updated" node indicators, as well as "X new" replies links.
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*/
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Drupal.behaviors.trackerHistory = {
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attach: function (context) {
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// Find all "new" comment indicator placeholders newer than 30 days ago that
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// have not already been read after their last comment timestamp.
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var nodeIDs = [];
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var $nodeNewPlaceholders = $(context)
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.find('[data-history-node-timestamp]')
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.once('history')
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.filter(function () {
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var nodeTimestamp = parseInt(this.getAttribute('data-history-node-timestamp'), 10);
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var nodeID = this.getAttribute('data-history-node-id');
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if (Drupal.history.needsServerCheck(nodeID, nodeTimestamp)) {
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nodeIDs.push(nodeID);
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return true;
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}
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else {
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return false;
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}
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});
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// Find all "new" comment indicator placeholders newer than 30 days ago that
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// have not already been read after their last comment timestamp.
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var $newRepliesPlaceholders = $(context)
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.find('[data-history-node-last-comment-timestamp]')
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.once('history')
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.filter(function () {
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var lastCommentTimestamp = parseInt(this.getAttribute('data-history-node-last-comment-timestamp'), 10);
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var nodeTimestamp = parseInt(this.previousSibling.previousSibling.getAttribute('data-history-node-timestamp'), 10);
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// Discard placeholders that have zero comments.
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if (lastCommentTimestamp === nodeTimestamp) {
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return false;
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}
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var nodeID = this.previousSibling.previousSibling.getAttribute('data-history-node-id');
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if (Drupal.history.needsServerCheck(nodeID, lastCommentTimestamp)) {
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if (nodeIDs.indexOf(nodeID) === -1) {
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nodeIDs.push(nodeID);
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}
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return true;
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}
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else {
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return false;
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}
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});
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if ($nodeNewPlaceholders.length === 0 && $newRepliesPlaceholders.length === 0) {
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return;
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}
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// Fetch the node read timestamps from the server.
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Drupal.history.fetchTimestamps(nodeIDs, function () {
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processNodeNewIndicators($nodeNewPlaceholders);
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processNewRepliesIndicators($newRepliesPlaceholders);
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});
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}
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};
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function processNodeNewIndicators($placeholders) {
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var newNodeString = Drupal.t('new');
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var updatedNodeString = Drupal.t('updated');
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$placeholders.each(function (index, placeholder) {
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var timestamp = parseInt(placeholder.getAttribute('data-history-node-timestamp'), 10);
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var nodeID = placeholder.getAttribute('data-history-node-id');
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var lastViewTimestamp = Drupal.history.getLastRead(nodeID);
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if (timestamp > lastViewTimestamp) {
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var message = (lastViewTimestamp === 0) ? newNodeString : updatedNodeString;
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$(placeholder).append('<span class="marker">' + message + '</span>');
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}
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});
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}
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function processNewRepliesIndicators($placeholders) {
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// Figure out which placeholders need the "x new" replies links.
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var placeholdersToUpdate = {};
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$placeholders.each(function (index, placeholder) {
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var timestamp = parseInt(placeholder.getAttribute('data-history-node-last-comment-timestamp'), 10);
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var nodeID = placeholder.previousSibling.previousSibling.getAttribute('data-history-node-id');
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var lastViewTimestamp = Drupal.history.getLastRead(nodeID);
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// Queue this placeholder's "X new" replies link to be downloaded from the
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// server.
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if (timestamp > lastViewTimestamp) {
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placeholdersToUpdate[nodeID] = placeholder;
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}
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});
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// Perform an AJAX request to retrieve node view timestamps.
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var nodeIDs = Object.keys(placeholdersToUpdate);
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if (nodeIDs.length === 0) {
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return;
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}
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$.ajax({
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url: Drupal.url('comments/render_new_comments_node_links'),
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type: 'POST',
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data: {'node_ids[]': nodeIDs},
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dataType: 'json',
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success: function (results) {
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for (var nodeID in results) {
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if (results.hasOwnProperty(nodeID) && placeholdersToUpdate.hasOwnProperty(nodeID)) {
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var url = results[nodeID].first_new_comment_link;
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var text = Drupal.formatPlural(results[nodeID].new_comment_count, '1 new', '@count new');
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$(placeholdersToUpdate[nodeID]).append('<br /><a href="' + url + '">' + text + '</a>');
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}
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}
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}
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});
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}
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})(jQuery, Drupal, window);
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