Display short headers in preview mode, with toggle to show all

skins/larry/mail.css

@@ -664,6 +664,32 @@ h3.subject {
 	height: 13px;
 }
 
+#preview-allheaders {
+	display: none;
+}
+
+#preview-shortheaders td.header-title {
+	padding-right: 0;
+}
+
+#preview-shortheaders td.header {
+	padding-right: 12px;
+}
+
+.headers-table .iconlink {
+	text-indent: -1000px;
+	padding: 1px 1px 1px 20px;
+}
+
+.headers-table .iconlink.add {
+	background-position: -5px -359px;
+}
+
+.headers-table .iconlink.delete {
+	background-position: -5px -339px;
+}
+
+
 #full-headers {
 	position: relative;
 	color: #666;

skins/larry/templates/messagepreview.html

@@ -8,7 +8,21 @@
 
 <div id="messagepreviewheader">
 <h3 class="subject"><roundcube:object name="messageHeaders" valueOf="subject" /></h3>
-<roundcube:object name="messageHeaders" class="headers-table" addicon="/images/addcontact.png" exclude="subject,replyto" />
+
+<table class="headers-table" id="preview-shortheaders"><tbody><tr>
+<roundcube:if condition="env:mailbox == config:drafts_mbox || env:mailbox == config:sent_mbox">
+	<td class="header-title"><roundcube:label name="to" /></td>
+	<td class="header from"><roundcube:object name="messageHeaders" valueOf="to" addicon="/images/addcontact.png" /></td>
+<roundcube:else />
+	<td class="header-title"><roundcube:label name="from" /></td>
+	<td class="header from"><roundcube:object name="messageHeaders" valueOf="from" addicon="/images/addcontact.png" /></td>
+<roundcube:endif />
+	<td class="header-title"><roundcube:label name="date" /></td>
+	<td class="header from"><roundcube:object name="messageHeaders" valueOf="date" /></td>
+	<td class="header"><a href="#details" id="previewheaderstoggle" class="iconlink add">Details</a>
+</tr></tbody></table>
+
+<roundcube:object name="messageHeaders" id="preview-allheaders" class="headers-table" addicon="/images/addcontact.png" exclude="subject,replyto" />
 
 <!-- record navigation -->
 <div id="countcontrols" class="pagenav">

skins/larry/ui.js

@@ -78,6 +78,7 @@ function rcube_mail_ui()
       if (rcmail.env.action == 'show' || rcmail.env.action == 'preview') {
         layout_messageview();
         $("#all-headers").resizable({ handles: 's', minHeight: 50 });
+        $('#previewheaderstoggle').click(function(e){ toggle_preview_headers(this); return false });
       }
       else if (rcmail.env.action == 'compose') {
         rcmail.addEventListener('aftertoggle-editor', function(){ window.setTimeout(function(){ layout_composeview() }, 100); });
@@ -424,6 +425,26 @@ function rcube_mail_ui()
   }
 
 
+  /**
+   * Switch between short and full headers display in message preview
+   */
+  function toggle_preview_headers(button)
+  {
+    $('#preview-shortheaders').toggle();
+    var full = $('#preview-allheaders').toggle();
+    
+    // add toggle button to full headers table
+    if (!full.data('mod')) {
+      $('<a>').attr('href', '#hide')
+        .addClass('iconlink remove')
+        .html('Hide')
+        .appendTo($('<td>').appendTo($('tr:first', full)))
+        .click(function(){ toggle_preview_headers(this);return false });
+      full.data('mod', true);
+    }
+  }
+
+
   /**
    *
    */