From 5bbd1782f8b45292e4fd708557f3f69c963c3e5d Mon Sep 17 00:00:00 2001
From: Andreas Gohr <gohr@cosmocode.de>
Date: Wed, 12 Dec 2018 13:37:21 +0100
Subject: [PATCH 1/2] added namespace export button

---
 MenuNSItem.php       | 51 ++++++++++++++++++++++++++++++++++++++++++++
 action.php           | 13 ++++++++---
 conf/default.php     |  1 +
 conf/metadata.php    |  1 +
 lang/en/lang.php     |  1 +
 lang/en/settings.php |  1 +
 6 files changed, 65 insertions(+), 3 deletions(-)
 create mode 100644 MenuNSItem.php

diff --git a/MenuNSItem.php b/MenuNSItem.php
new file mode 100644
index 00000000..a850c053
--- /dev/null
+++ b/MenuNSItem.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace dokuwiki\plugin\dw2pdf;
+
+use dokuwiki\Menu\Item\AbstractItem;
+
+/**
+ * Class MenuItem
+ *
+ * Implements the PDF namespace export button for DokuWiki's menu system
+ *
+ * @package dokuwiki\plugin\dw2pdf
+ */
+class MenuNSItem extends AbstractItem
+{
+
+    /** @var string do action for this plugin */
+    protected $type = 'export_pdfns';
+
+    /** @var string icon file */
+    protected $svg = __DIR__ . '/file-pdf.svg';
+
+    /**
+     * MenuItem constructor.
+     */
+    public function __construct()
+    {
+        parent::__construct();
+        global $REV, $DATE_AT, $ID;
+
+        if ($DATE_AT) {
+            $this->params['at'] = $DATE_AT;
+        } elseif ($REV) {
+            $this->params['rev'] = $REV;
+        }
+
+        $this->params['book_ns'] = getNS($ID);
+        $this->params['book_title'] = noNS(getNS($ID));
+    }
+
+    /**
+     * Get label from plugin language file
+     *
+     * @return string
+     */
+    public function getLabel()
+    {
+        $hlp = plugin_load('action', 'dw2pdf');
+        return $hlp->getLang('export_pdfns_button');
+    }
+}
diff --git a/action.php b/action.php
index a3b98a90..f243cf4b 100644
--- a/action.php
+++ b/action.php
@@ -975,8 +975,9 @@ public function addbutton(Doku_Event $event) {
      * @param Doku_Event $event
      */
     public function addsvgbutton(Doku_Event $event) {
-        global $INFO;
-        if($event->data['view'] != 'page' || !$this->getConf('showexportbutton')) {
+        global $INFO, $ID;
+
+        if($event->data['view'] != 'page') {
             return;
         }
 
@@ -984,6 +985,12 @@ public function addsvgbutton(Doku_Event $event) {
             return;
         }
 
-        array_splice($event->data['items'], -1, 0, [new \dokuwiki\plugin\dw2pdf\MenuItem()]);
+        if( $this->getConf('showexportbutton') ) {
+            array_splice($event->data['items'], -1, 0, [new \dokuwiki\plugin\dw2pdf\MenuItem()]);
+        }
+
+        if( $this->getConf('showexportnsbutton') && getNS($ID) ) {
+            array_splice($event->data['items'], -1, 0, [new \dokuwiki\plugin\dw2pdf\MenuNSItem()]);
+        }
     }
 }
diff --git a/conf/default.php b/conf/default.php
index ccac4255..32cf40c2 100644
--- a/conf/default.php
+++ b/conf/default.php
@@ -12,3 +12,4 @@
 $conf['usestyles']        = 'wrap,';
 $conf['qrcodesize']       = '120x120';
 $conf['showexportbutton'] = 1;
+$conf['showexportnsbutton'] = 0;
diff --git a/conf/metadata.php b/conf/metadata.php
index e726daf7..a041e427 100644
--- a/conf/metadata.php
+++ b/conf/metadata.php
@@ -12,3 +12,4 @@
 $meta['usestyles']        = array('string');
 $meta['qrcodesize']       = array('string', '_pattern' => '/^(|\d+x\d+)$/');
 $meta['showexportbutton'] = array('onoff');
+$meta['showexportnsbutton'] = array('onoff');
diff --git a/lang/en/lang.php b/lang/en/lang.php
index 96af0c3d..5871e28b 100644
--- a/lang/en/lang.php
+++ b/lang/en/lang.php
@@ -1,6 +1,7 @@
 <?php
 
 $lang['export_pdf_button'] = "Export to PDF";
+$lang['export_pdfns_button'] = "Export Namespace to PDF";
 $lang['needtitle']         = "Please provide a title.";
 $lang['needns']            = "Please provide an existing namespace.";
 $lang['notexist']          = "Requested page doesn't exist.";
diff --git a/lang/en/settings.php b/lang/en/settings.php
index 5a0c9a20..02257d13 100644
--- a/lang/en/settings.php
+++ b/lang/en/settings.php
@@ -23,3 +23,4 @@
 $lang['usestyles']               = 'You can give a comma separated list of plugins of which the <code>style.css</code> or <code>screen.css</code> should be used for PDF generation. By default only <code>print.css</code> and <code>pdf.css</code> are used.';
 $lang['qrcodesize']              = 'Size of embedded QR code (in pixels <code><i>&lt;width&gt;</i><b>x</b><i>&lt;height&gt;</i></code>). Empty to disable';
 $lang['showexportbutton']        = 'Show PDF export button (only when supported by your template)';
+$lang['showexportnsbutton']      = 'Show PDF Namespace export button (only when supported by your template)';

From 32c16e79eff116d800ae46df35511c379c397390 Mon Sep 17 00:00:00 2001
From: Andreas Gohr <gohr@cosmocode.de>
Date: Wed, 12 Dec 2018 13:54:54 +0100
Subject: [PATCH 2/2] support legacy menu event for NS export

---
 action.php | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/action.php b/action.php
index f243cf4b..4e11ff99 100644
--- a/action.php
+++ b/action.php
@@ -948,7 +948,11 @@ public function getExportConfig($name, $notset = false) {
     public function addbutton(Doku_Event $event) {
         global $ID, $REV, $DATE_AT;
 
-        if($this->getConf('showexportbutton') && $event->data['view'] == 'main') {
+        if(!$event->data['view'] == 'main') {
+            return;
+        }
+
+        if($this->getConf('showexportbutton')) {
             $params = array('do' => 'export_pdf');
             if($DATE_AT) {
                 $params['at'] = $DATE_AT;
@@ -967,6 +971,28 @@ public function addbutton(Doku_Event $event) {
                 ) +
                 array_slice($event->data['items'], -1, 1, true);
         }
+
+        if($this->getConf('showexportnsbutton') && getNS($ID)) {
+            $params = array('do' => 'export_pdf');
+            if($DATE_AT) {
+                $params['at'] = $DATE_AT;
+            } elseif($REV) {
+                $params['rev'] = $REV;
+            }
+            $params['book_ns'] = getNS($ID);
+            $params['book_title'] = noNS(getNS($ID));
+
+            // insert button at position before last (up to top)
+            $event->data['items'] = array_slice($event->data['items'], 0, -1, true) +
+                array('export_pdfns' =>
+                    '<li>'
+                    . '<a href="' . wl($ID, $params) . '"  class="action export_pdf" rel="nofollow" title="' . $this->getLang('export_pdfns_button') . '">'
+                    . '<span>' . $this->getLang('export_pdfns_button') . '</span>'
+                    . '</a>'
+                    . '</li>'
+                ) +
+                array_slice($event->data['items'], -1, 1, true);
+        }
     }
 
     /**