new configuration option which enables a button for toggling the visi…

…bility of the discussion section

action.php

@@ -358,7 +358,7 @@ function _show($reply = NULL, $edit = NULL) {
             $show = true;
             // section title
             $title = ($data['title'] ? hsc($data['title']) : $this->getLang('discussion'));
-            ptln('<div class="comment_wrapper">');
+            ptln('<div class="comment_wrapper" id="comment_wrapper">'); // the id value is used for visibility toggling the section
             ptln('<h2><a name="discussion__section" id="discussion__section">', 2);
             ptln($title, 4);
             ptln('</a></h2>', 2);
@@ -387,6 +387,12 @@ function _show($reply = NULL, $edit = NULL) {
             ptln('</div>', 2); // level2 hfeed
             ptln('</div>'); // comment_wrapper
         }
+
+        // check for toggle print configuration
+        if($this->getConf('visibilityButton')) {           
+            // print the hide/show discussion section button
+            $this->_print_toggle_button();
+        }
 
         return true;
     }
@@ -654,6 +660,7 @@ function _print($cid, &$data, $parent = '', $reply = '', $visible = true) {
         $this->_print_replies($cid, $data, $reply, $visible);
         // reply form
         $this->_print_form($cid, $reply);
+
     }
 
     function _print_comment($cid, &$data, $parent, $reply, $visible, $hidden)
@@ -794,6 +801,15 @@ function _get_style()
         return $this->style;
     }
 
+    /**
+     * Show the button which toggle the visibility of the discussion section
+     */
+    function _print_toggle_button() {
+        ptln('<div id="toggle_button" class="toggle_button" style="text-align: right;">');
+        ptln('<input type="submit" id="discussion__btn_toggle_visibility" title="Toggle Visibiliy" class="button" value="Hide/Show">');
+        ptln('</div>');
+    }
+
     /**
      * Outputs the comment form
      */

conf/default.php

@@ -22,4 +22,6 @@
 
 $conf['threads_formposition'] = 'bottom'; // position of new thread form
 
+$conf['visibilityButton'] = 0; // show/hide button to hide the discussion section
+
 //Setup VIM: ex: et ts=2 enc=utf-8 :

conf/metadata.php

@@ -28,4 +28,6 @@
                                   '_choices' => array('off', 'top', 'bottom')
                                 );
 
+$meta['visibilityButton'] = array('onoff');
+
 //Setup VIM: ex: et ts=2 enc=utf-8 :

lang/de/settings.php

@@ -28,4 +28,6 @@
 $lang['threads_formposition_o_top']    = 'oben';
 $lang['threads_formposition_o_bottom'] = 'unten';
 
+$lang['visibilityButton'] = 'Schaltfläche anzeigen, mit der der Discussion-Abschnitt aus-/eingeblendet werden kann';
+
 //Setup VIM: ex: et ts=2 enc=utf-8 :

lang/en/settings.php

@@ -29,4 +29,6 @@
 $lang['threads_formposition_o_top']    = 'top';
 $lang['threads_formposition_o_bottom'] = 'bottom';
 
+$lang['visibilityButton'] = 'Enable button for toggling the visibility of the discussion section';
+
 //Setup VIM: ex: et ts=2 enc=utf-8 :

script.js

@@ -80,6 +80,18 @@ function discussion_ajax_preview() {
     ajax.runAJAX();
 }
 
+/**
+ * Toggle the visibility of the discussion section
+ */
+function discussion_toggle_visibility() {
+	discussion_section = $('comment_wrapper');
+	if(discussion_section.style.display == "none") {
+		discussion_section.style.display = "block";
+	} else {
+		discussion_section.style.display = "none";
+	}
+}
+
 // init toolbar
 addInitEvent(function() {
     if(typeof window.initToolbar == 'function') {
@@ -100,3 +112,10 @@ addInitEvent(function() {
     if(!form) return;
     addEvent(form, 'submit', function() { return validate(form); });
 });
+
+// toggle section visibility
+addInitEvent(function() {
+	var togglebtn = $('discussion__btn_toggle_visibility');
+	if(!togglebtn) return;
+	addEvent(togglebtn, 'click', discussion_toggle_visibility);
+})

style.css

@@ -108,6 +108,22 @@ div.dokuwiki div.comment_buttons input.button {
   margin: 0 0 0 0.5em;
 }
 
+div.dokuwiki div.toggle_button {
+  text-align: right;
+
+}
+
+div.dokuwiki div.toggle_button input.button {
+  border: 1px solid __border__;
+  color: __text__;
+  background-color: __background__;
+  vertical-align: middle;
+  text-decoration: none;
+  padding: 0;
+  margin: 0 12px 0 0;
+  font-size: 10px;
+}
+
 div.dokuwiki div.newthread_form {
   clear: both;
   text-align: center;