From 08167e91140e533dbc52279071767813fee8401c Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Thu, 04 Jul 2013 08:51:58 -0400
Subject: [PATCH] Improve help plugin with some options to display contents according to the current task/step

---
 plugins/help/help.php |   57 +++++++++++++++++++++++++++++++++++++++++++++++----------
 1 files changed, 47 insertions(+), 10 deletions(-)

diff --git a/plugins/help/help.php b/plugins/help/help.php
index 69da682..66c4256 100644
--- a/plugins/help/help.php
+++ b/plugins/help/help.php
@@ -1,9 +1,10 @@
 <?php
 
 /**
- * Help Plugin
+ * Roundcube Help Plugin
  *
  * @author Aleksander 'A.L.E.C' Machniak
+ * @author Thomas Bruederli <thomas@roundcube.net>
  * @license GNU GPLv3+
  *
  * Configuration (see config.inc.php.dist)
@@ -21,6 +22,7 @@
 
     function init()
     {
+        $this->load_config();
         $this->add_texts('localization/', false);
 
         // register task
@@ -31,6 +33,8 @@
         $this->register_action('about', array($this, 'action'));
         $this->register_action('license', array($this, 'action'));
 
+        $rcmail = rcmail::get_instance();
+
         // add taskbar button
         $this->add_button(array(
             'command'    => 'help',
@@ -39,6 +43,9 @@
             'innerclass' => 'button-inner',
             'label'      => 'help.help',
         ), 'taskbar');
+
+        $this->include_script('help.js');
+        $rcmail->output->set_env('help_open_extwin', $rcmail->config->get('help_open_extwin', false), true);
 
         // add style for taskbar button (must be here) and Help UI
         $skin_path = $this->local_skin_path();
@@ -50,8 +57,6 @@
     function action()
     {
         $rcmail = rcmail::get_instance();
-
-        $this->load_config();
 
         // register UI objects
         $rcmail->output->add_handlers(array(
@@ -72,16 +77,39 @@
     {
         $rcmail = rcmail::get_instance();
 
-        if ($rcmail->action == 'about') {
-            return @file_get_contents($this->home.'/content/about.html');
-        }
-        else if ($rcmail->action == 'license') {
-            return @file_get_contents($this->home.'/content/license.html');
+        switch ($rcmail->action) {
+            case 'about':
+                if (is_readable($this->home . '/content/about.html')) {
+                    return @file_get_contents($this->home . '/content/about.html');
+                }
+                $src = $rcmail->config->get('help_about_url', $rcmail->url(array('_task' => 'settings', '_action' => 'about')));
+                break;
+
+            case 'license':
+                if (is_readable($this->home . '/content/license.html')) {
+                    return @file_get_contents($this->home . '/content/license.html');
+                }
+                $src = $rcmail->config->get('help_license_url', 'http://www.gnu.org/licenses/gpl-3.0-standalone.html');
+                break;
+
+            default:
+                $src = $rcmail->config->get('help_source');
+
+                // resolve task/action for depp linking
+                $index_map = $rcmail->config->get('help_index_map', array());
+                $rel = $_REQUEST['_rel'];
+                list($task,$action) = explode('/', $rel);
+                if ($add = $index_map[$rel])
+                    $src .= $add;
+                else if ($add = $index_map[$task])
+                    $src .= $add;
+                break;
         }
 
         // default content: iframe
-        if ($src = $rcmail->config->get('help_source'))
-            $attrib['src'] = $src;
+        if (!empty($src)) {
+            $attrib['src'] = $this->resolve_language($src);
+        }
 
         if (empty($attrib['id']))
             $attrib['id'] = 'rcmailhelpcontent';
@@ -91,4 +119,13 @@
         return $rcmail->output->frame($attrib);
     }
 
+
+    private function resolve_language($path)
+    {
+        // resolve language placeholder
+        $rcmail = rcmail::get_instance();
+        $langmap = $rcmail->config->get('help_language_map', array('*' => 'en_US'));
+        $lang = !empty($langmap[$_SESSION['language']]) ? $langmap[$_SESSION['language']] : $langmap['*'];
+        return str_replace('%l', $lang, $path);
+    }
 }

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