Bug 45715 - ""Reply to List" [button/(context) menu item]" [r=mkmelin,sr=bienvenu,ui-review=clarkbw]

mail/base/content/hiddenWindow.js

@@ -53,7 +53,7 @@ function hiddenWindowStartup()
              'goNextMenu', 'menu_nextMsg', 'menu_nextUnreadMsg', 'menu_nextUnreadThread',
              'goPreviousMenu', 'menu_prevMsg', 'menu_prevUnreadMsg', 'menu_goForward', 'menu_goBack',
              'goStartPage', 'newMsgCmd', 'replyMainMenu', 'replySenderMainMenu', 'replyNewsgroupMainMenu',
-             'menu_replyToAll', 'menu_forwardMsg', 'forwardAsMenu', 'menu_editMsgAsNew', 'openMessageWindowMenuitem',
+             'menu_replyToAll', 'menu_replyToList', 'menu_forwardMsg', 'forwardAsMenu', 'menu_editMsgAsNew', 'openMessageWindowMenuitem',
              'moveMenu', 'copyMenu', 'moveToFolderAgain', 'tagMenu', 'markMenu',
              'markReadMenuItem', 'menu_markThreadAsRead', 'menu_markReadByDate', 'menu_markAllRead',
              'markFlaggedMenuItem', 'menu_markAsJunk', 'menu_markAsNotJunk', 'createFilter',

mail/base/content/mail3PaneWindowCommands.js

@@ -148,6 +148,8 @@ var DefaultController =
       case "cmd_replyGroup":
       case "cmd_replyall":
       case "button_replyall":
+      case "cmd_replylist":
+      case "button_replylist":
       case "cmd_forward":
       case "button_forward":
       case "cmd_forwardInline":
@@ -300,6 +302,8 @@ var DefaultController =
       case "cmd_replyGroup":
       case "cmd_replyall":
       case "button_replyall":
+      case "cmd_replylist":
+      case "button_replylist":
       case "cmd_forward":
       case "button_forward":
       case "cmd_forwardInline":
@@ -531,6 +535,9 @@ var DefaultController =
       case "cmd_replyall":
         MsgReplyToAllMessage(null);
         break;
+      case "cmd_replylist":
+        MsgReplyToListMessage(null);
+        break;
       case "cmd_forward":
         MsgForwardMessage(null);
         break;

mail/base/content/mailContextMenus.js

@@ -195,6 +195,7 @@ function fillMailContextMenu(event)
   setSingleSelection("mailContext-editAsNew");
   setSingleSelection("mailContext-replyNewsgroup", isNewsgroup);
   setSingleSelection("mailContext-replyAll");
+  setSingleSelection("mailContext-replyList");
   setSingleSelection("mailContext-forward");
   ShowMenuItem("mailContext-forwardAsAttachment",
                numSelected > 1 && inThreadPane && !hideMailItems);

mail/base/content/mailWidgets.xml

@@ -2120,7 +2120,12 @@
                    class="msgHeaderView-button hdrReplyButton"
                    type="menu-button">
          <xul:menupopup anonid="hdrReplyDropdown">
-           <xul:menuitem anonid="hdrReplyAllButton"
+           <xul:menuitem anonid="hdrReplySubButton"
+                         label="&hdrReplyButton.label;"
+                         tooltiptext="&replyButton.tooltip;"
+                         observes="button_reply"/>
+           <xul:menuseparator anonid="hdrReplyAllSubButtonSep"/>
+           <xul:menuitem anonid="hdrReplyAllSubButton"
                          label="&hdrReplyAllButton.label;"
                          tooltiptext="&replyAllButton.tooltip;"
                          observes="button_replyall"
@@ -2128,6 +2133,52 @@
                          RestoreFocusAfterHdrButton();"/>
          </xul:menupopup>
        </xul:button>
+       <xul:button anonid="hdrReplyAllButton" label="&hdrReplyAllButton.label;"
+                   oncommand="MsgReplyToAllMessage(event);RestoreFocusAfterHdrButton();"
+                   observes="button_replyall"
+                   class="msgHeaderView-button hdrReplyButton"
+                   type="menu-button"
+                   hidden="true">
+         <xul:menupopup anonid="hdrReplyAllDropdown">
+           <xul:menuitem anonid="hdrReplyAllSubButton"
+                         label="&hdrReplyAllButton.label;"
+                         tooltiptext="&replyAllButton.tooltip;"
+                         observes="button_replyall"/>
+           <xul:menuseparator/>
+           <xul:menuitem anonid="hdrReplySubButton"
+                         label="&hdrReplyButton.label;"
+                         tooltiptext="&replyButton.tooltip;"
+                         observes="button_reply"
+                         oncommand="MsgReplyMessage(event); event.stopPropagation();
+                         RestoreFocusAfterHdrButton();"/>
+         </xul:menupopup>
+       </xul:button>
+       <xul:button anonid="hdrReplyListButton" label="&hdrReplyListButton.label;"
+                   oncommand="MsgReplyToListMessage(event);RestoreFocusAfterHdrButton();"
+                   observes="button_replylist"
+                   class="msgHeaderView-button hdrReplyButton"
+                   type="menu-button"
+                   hidden="true">
+         <xul:menupopup anonid="hdrReplyListDropdown">
+           <xul:menuitem anonid="hdrReplyListSubButton"
+                         label="&hdrReplyListButton.label;"
+                         tooltiptext="&replyListButton.tooltip;"
+                         observes="button_replylist"/>
+           <xul:menuseparator/>
+           <xul:menuitem anonid="hdrReplyAllSubButton"
+                         label="&hdrReplyAllButton.label;"
+                         tooltiptext="&replyAllButton.tooltip;"
+                         observes="button_replyall"
+                         oncommand="MsgReplyToAllMessage(event); event.stopPropagation();
+                         RestoreFocusAfterHdrButton();"/>
+           <xul:menuitem anonid="hdrReplySubButton"
+                         label="&hdrReplyButton.label;"
+                         tooltiptext="&replyButton.tooltip;"
+                         observes="button_reply"
+                         oncommand="MsgReplyMessage(event); event.stopPropagation();
+                         RestoreFocusAfterHdrButton();"/>
+         </xul:menupopup>
+       </xul:button>
        <xul:button anonid="hdrForwardButton" label="&hdrForwardButton.label;"
                    oncommand="MsgForwardMessage(event);RestoreFocusAfterHdrButton();"
                    observes="button_forward" class="msgHeaderView-button hdrForwardButton"/>

mail/base/content/mailWindowOverlay.js

@@ -807,6 +807,99 @@ function UpdateJunkToolbarButton()
     junkButtonDeck.selectedIndex = SelectedMessagesAreJunk() ? 1 : 0;
 }
 
+function UpdateReplyButtons()
+{
+  let msgHdr = messenger.msgHdrFromURI(GetLoadedMessage());
+
+  let myEmail = getIdentityForHeader(msgHdr).email;
+  let recipients = msgHdr.recipients + "," + msgHdr.ccList;
+
+  // If my email address isn't in the to or cc list, then I've been bcc-ed.
+  let imBcced = recipients.indexOf(myEmail) == -1;
+
+  // Now, let's get the number of unique recipients
+  let hdrParser = Components.classes["@mozilla.org/messenger/headerparser;1"]
+                            .getService(Components.interfaces.nsIMsgHeaderParser);
+  let uniqueRecipients = hdrParser.removeDuplicateAddresses(recipients, {});
+  let numAddresses = hdrParser.parseHeadersWithArray(uniqueRecipients, {}, {}, {});
+
+  // If I've been bcc-ed, then add 1 to the number of addresses to compensate.
+  if (imBcced)
+    numAddresses++
+
+  // By default, ReplyAll if there is more than 1 person to reply to.
+  let showReplyAll = numAddresses > 1;
+
+  // And ReplyToList if there is a List-Post header.
+  let showReplyList = currentHeaderData["list-post"];
+
+  // Get the server type.
+  let serverType = null;
+  try
+  {
+    serverType = msgHdr.folder.server.type;
+  }
+  catch (ex)
+  {
+    // This empty catch block needs to be here because msgHdr.folder will
+    // throw an exception when you try to access it on a .eml file.
+  }
+
+  // But, if we're in a news item, we should default to Reply.
+  if (serverType == "nntp")
+  {
+    showReplyAll = false;
+    showReplyList = false;
+  }
+
+  let buttonToShow = "reply";
+  if (showReplyList)
+    buttonToShow = "replyList";
+  else if (showReplyAll)
+    buttonToShow = "replyAll";
+
+  let buttonBox = document.getElementById(gCollapsedHeaderViewMode ?
+    "collapsedButtonBox" : "expandedButtonBox");
+
+  let replyButton = buttonBox.getButton("hdrReplyButton");
+  let replyAllButton = buttonBox.getButton("hdrReplyAllButton");
+  let replyAllSubButton = buttonBox.getButton("hdrReplyAllSubButton");
+  let replyAllSubButtonSep = buttonBox.getButton("hdrReplyAllSubButtonSep");
+  let replyListButton = buttonBox.getButton("hdrReplyListButton");
+
+  replyButton.hidden = (buttonToShow != "reply");
+  replyAllButton.hidden = (buttonToShow != "replyAll");
+  replyListButton.hidden = (buttonToShow != "replyList");
+
+  let replyListMenu = document.getElementById("menu_replyToList");
+  replyListMenu.hidden = !showReplyList;
+
+  let replyListCommand = document.getElementById("cmd_replylist");
+  replyListCommand.disabled = !showReplyList;
+
+  if (serverType == "nntp")
+  {
+    // If it's a news item, show the ReplyAll sub-button and separator.
+    replyAllSubButton.hidden = false;
+    replyAllSubButtonSep.hidden = false;
+  }
+  else if (serverType == "rss")
+  {
+    // otherwise, if it's an rss item, hide all the Reply buttons.
+    replyButton.hidden = true;
+    replyAllButton.hidden = true;
+    replyListButton.hidden = true;
+    replyAllSubButton.hidden = true;
+    replyAllSubButtonSep.hidden = true;
+  }
+  else
+  {
+    // otherwise, hide the ReplyAll sub-buttons.
+    replyAllSubButton.hidden = true;
+    replyAllSubButtonSep.hidden = true;
+  }
+}
+
 function UpdateDeleteToolbarButton()
 {
   var deleteButtonDeck = document.getElementById("delete-deck");
@@ -1097,6 +1190,10 @@ function MsgReplyToAllMessage(event)
   composeMsgByType(Components.interfaces.nsIMsgCompType.ReplyAll, event);
 }
 
+function MsgReplyToListMessage(event)
+{
+  composeMsgByType(Components.interfaces.nsIMsgCompType.ReplyToList, event);
+}
 
 // Message Archive function
 

mail/base/content/mailWindowOverlay.xul

@@ -232,6 +232,7 @@
   <command id="cmd_replySender" oncommand="goDoCommand('cmd_replySender')"/>
   <command id="cmd_replyGroup" oncommand="goDoCommand('cmd_replyGroup')"/>
   <command id="cmd_replyall" oncommand="goDoCommand('cmd_replyall')"/>
+  <command id="cmd_replylist" oncommand="goDoCommand('cmd_replylist')"/>
   <command id="cmd_forward" oncommand="goDoCommand('cmd_forward')"/>
   <command id="cmd_forwardInline" oncommand="goDoCommand('cmd_forwardInline')"/>
   <command id="cmd_forwardAttachment" oncommand="goDoCommand('cmd_forwardAttachment')"/>
@@ -251,6 +252,7 @@
 
   <command id="button_reply"/>
   <command id="button_replyall"/>
+  <command id="button_replylist"/>
   <command id="button_archive"/>
   <command id="button_forward"/>
   <command id="button_delete"/>
@@ -376,6 +378,7 @@
   <key id="key_goStartPage" keycode="VK_HOME"                        oncommand="goDoCommand('cmd_goStartPage')" modifiers="alt"/>
   <key id="key_reply" key="&replyMsgCmd.key;"                        oncommand="goDoCommand('cmd_reply')" modifiers="accel"/>
   <key id="key_replyall" key="&replyToAllMsgCmd.key;"                oncommand="goDoCommand('cmd_replyall')" modifiers="accel, shift"/>
+  <key id="key_replylist" key="&replyToListMsgCmd.key;"              oncommand="goDoCommand('cmd_replylist')" modifiers="accel, shift"/>
   <key id="key_forward" key="&forwardMsgCmd.key;"                    oncommand="goDoCommand('cmd_forward')" modifiers="accel"/>
   <key id="key_editAsNew" key="&editMsgAsNewCmd.key;"                oncommand="goDoCommand('cmd_editAsNew')" modifiers="accel"/>
   <key id="key_watchThread" key="&watchThreadMenu.key;"              oncommand="goDoCommand('cmd_watchThread')" />
@@ -536,6 +539,10 @@
               label="&contextReplyAll.label;"
               accesskey="&contextReplyAll.accesskey;"
               oncommand="MsgReplyToAllMessage(event);"/>
+    <menuitem id="mailContext-replyList"
+              label="&contextReplyList.label;"
+              accesskey="&contextReplyList.accesskey;"
+              oncommand="MsgReplyToListMessage(event);"/>
     <menuitem id="mailContext-forward"
               label="&contextForward.label;"
               accesskey="&contextForward.accesskey;"
@@ -1230,32 +1237,36 @@
         <menu id="messageMenu" label="&msgMenu.label;" accesskey="&msgMenu.accesskey;">
           <menupopup id="messageMenuPopup" onpopupshowing="InitMessageMenu();">
             <menuitem id="newMsgCmd" label="&newMsgCmd.label;"
-              accesskey="&newMsgCmd.accesskey;"
-              key="key_newMessage2"
-              oncommand="MsgNewMessage(null);"/>
+                      accesskey="&newMsgCmd.accesskey;"
+                      key="key_newMessage2"
+                      oncommand="MsgNewMessage(null);"/>
             <menuitem id="archiveMainMenu" label="&archiveMsgCmd.label;"
-              accesskey="&archiveMsgCmd.accesskey;"
-              key="key_archive"
-              command="cmd_archive"/>
+                      accesskey="&archiveMsgCmd.accesskey;"
+                      key="key_archive"
+                      command="cmd_archive"/>
             <menuitem id="replyMainMenu" label="&replyMsgCmd.label;"
-              accesskey="&replyMsgCmd.accesskey;"
-              key="key_reply"
-              command="cmd_reply"/>
+                      accesskey="&replyMsgCmd.accesskey;"
+                      key="key_reply"
+                      command="cmd_reply"/>
             <menuitem id="replySenderMainMenu" label="&replySenderCmd.label;"
-              accesskey="&replySenderCmd.accesskey;"
-              command="cmd_replySender"/>
+                      accesskey="&replySenderCmd.accesskey;"
+                      command="cmd_replySender"/>
             <menuitem id="replyNewsgroupMainMenu" label="&replyNewsgroupCmd.label;"
-              accesskey="&replyNewsgroupCmd.accesskey;"
-              key="key_reply"
-              command="cmd_replyGroup"/>
+                      accesskey="&replyNewsgroupCmd.accesskey;"
+                      key="key_reply"
+                      command="cmd_replyGroup"/>
             <menuitem id="menu_replyToAll" label="&replyToAllMsgCmd.label;"
-              accesskey="&replyToAllMsgCmd.accesskey;"
-              key="key_replyall"
-              command="cmd_replyall"/>
+                      accesskey="&replyToAllMsgCmd.accesskey;"
+                      key="key_replyall"
+                      command="cmd_replyall"/>
+            <menuitem id="menu_replyToList" label="&replyToListMsgCmd.label;"
+                      accesskey="&replyToListMsgCmd.accesskey;"
+                      key="key_replylist"
+                      command="cmd_replylist"/>
             <menuitem id="menu_forwardMsg" label="&forwardMsgCmd.label;"
-              accesskey="&forwardMsgCmd.accesskey;"
-              key="key_forward"
-              command="cmd_forward"/>
+                      accesskey="&forwardMsgCmd.accesskey;"
+                      key="key_forward"
+                      command="cmd_forward"/>
             <menu id="forwardAsMenu" label="&forwardAsMenu.label;" accesskey="&forwardAsMenu.accesskey;">
               <menupopup id="menu_forwardAsPopup">
                 <menuitem id="menu_forwardAsInline"
@@ -1269,13 +1280,13 @@
               </menupopup>
             </menu>
             <menuitem id="menu_editMsgAsNew" label="&editMsgAsNewCmd.label;"
-                accesskey="&editMsgAsNewCmd.accesskey;"
-                key="key_editAsNew"
-                command="cmd_editAsNew"/>
+                      accesskey="&editMsgAsNewCmd.accesskey;"
+                      key="key_editAsNew"
+                      command="cmd_editAsNew"/>
             <menuitem id="openMessageWindowMenuitem" label="&openMessageWindowCmd.label;"
-              command="cmd_openMessage"
-              accesskey="&openMessageWindowCmd.accesskey;"
-              key="key_openMessage"/>
+                      command="cmd_openMessage"
+                      accesskey="&openMessageWindowCmd.accesskey;"
+                      key="key_openMessage"/>
             <menu id="openFeedMessage" 
                   label="&openFeedMessage.label;" 
                   accesskey="&openFeedMessage.accesskey;">
@@ -1497,6 +1508,12 @@
                    tooltiptext="&replyAllButton.tooltip;"
                    observes="button_replyall"
                    oncommand="MsgReplyToAllMessage(event)"/>
+    <toolbarbutton id="button-replylist"
+                   class="toolbarbutton-1"
+                   label="&replyListButton.label;"
+                   tooltiptext="&replyListButton.tooltip;"
+                   observes="button_replylist"
+                   oncommand="MsgReplyToListMessage(event)"/>
     <toolbarbutton id="button-forward"
                    class="toolbarbutton-1"
                    label="&forwardButton.label;"
@@ -1703,9 +1720,9 @@
            customizable="true"
            context="toolbar-context-menu"
 #ifdef XP_MACOSX
-           defaultset="button-getmsg,button-newmsg,button-address,spacer,button-reply,button-replyall,button-forward,spacer,button-tag,button-delete,button-junk,button-print,spacer,button-goback,button-goforward,spring,search-container,throbber-box">
+           defaultset="button-getmsg,button-newmsg,button-address,spacer,button-reply,button-replyall,button-replylist,button-forward,spacer,button-tag,button-delete,button-junk,button-print,spacer,button-goback,button-goforward,spring,search-container,throbber-box">
 #else
-           defaultset="button-getmsg,button-newmsg,button-address,separator,button-reply,button-replyall,button-forward,separator,button-tag,button-delete,button-junk,button-print,separator,button-goback,button-goforward,spring,search-container">
+           defaultset="button-getmsg,button-newmsg,button-address,separator,button-reply,button-replyall,button-replylist,button-forward,separator,button-tag,button-delete,button-junk,button-print,separator,button-goback,button-goforward,spring,search-container">
 #endif
   </toolbar>
   <toolbarset id="customToolbars" context="toolbar-context-menu"/>

mail/base/content/messageWindow.js

@@ -178,6 +178,9 @@ nsMsgDBViewCommandUpdater.prototype =
     goUpdateCommand("button_junk");
     goUpdateCommand("button_goBack");
     goUpdateCommand("button_goForward");
+    goUpdateCommand("button_reply");
+    goUpdateCommand("button_replyall");
+    goUpdateCommand("button_replylist");
   },
 
   updateNextMessageAfterDelete : function()
@@ -778,6 +781,8 @@ var MessageWindowController =
       case "cmd_replyGroup":
       case "cmd_replyall":
       case "button_replyall":
+      case "cmd_replylist":
+      case "button_replylist":
       case "cmd_archive":
       case "button_archive":
       case "cmd_forward":
@@ -849,6 +854,8 @@ var MessageWindowController =
       case "cmd_replyGroup":
       case "cmd_replyall":
       case "button_replyall":
+      case "cmd_replylist":
+      case "button_replylist":
       case "cmd_forward":
       case "button_forward":
       case "cmd_forwardInline":
@@ -974,6 +981,9 @@ var MessageWindowController =
       case "cmd_replyall":
         MsgReplyToAllMessage(null);
         break;
+      case "cmd_replylist":
+        MsgReplyToListMessage(null);
+        break;
       case "cmd_forward":
         MsgForwardMessage(null);
         break;

mail/base/content/msgHdrViewOverlay.js

@@ -415,6 +415,7 @@ var messageHeaderSink = {
       UpdateMessageHeaders();
       ShowEditMessageBox();
       UpdateJunkButton();
+      UpdateReplyButtons();
 
       for (index in gMessageListeners)
         gMessageListeners[index].onEndHeaders();
@@ -455,6 +456,8 @@ var messageHeaderSink = {
             this.mDummyMsgHeader.replyTo = header.headerValue;
           else if (lowerCaseHeaderName == "message-id")
             this.mDummyMsgHeader.messageId = header.headerValue;
+          else if (lowerCaseHeaderName == "list-post")
+            this.mDummyMsgHeader.listPost = header.headerValue;
 
         }
         // according to RFC 2822, certain headers
@@ -786,6 +789,7 @@ function updateHeaderViews()
     showHeaderView(gExpandedHeaderView);
   }
   UpdateJunkButton();
+  UpdateReplyButtons();
   displayAttachmentsForExpandedView();
 }
 
@@ -1996,6 +2000,7 @@ nsDummyMsgHeader.prototype =
   from : null,
   subject : null,
   ccList : null,
+  listPost : null,
   messageId : null,
   accountKey : "",
   folder : null

mail/locales/en-US/chrome/messenger/messenger.dtd

@@ -332,6 +332,9 @@ you can use these alternative items. Otherwise, their values should be empty.  -
 <!ENTITY replyToAllMsgCmd.label "Reply to All">
 <!ENTITY replyToAllMsgCmd.accesskey  "p">
 <!ENTITY replyToAllMsgCmd.key  "r">
+<!ENTITY replyToListMsgCmd.label "Reply to List">
+<!ENTITY replyToListMsgCmd.accesskey  "L">
+<!ENTITY replyToListMsgCmd.key  "l">
 <!ENTITY forwardMsgCmd.label "Forward">
 <!ENTITY forwardMsgCmd.accesskey "F">
 <!ENTITY forwardMsgCmd.key  "l">
@@ -461,6 +464,7 @@ you can use these alternative items. Otherwise, their values should be empty.  -
 <!ENTITY newMsgButton.label "Write">
 <!ENTITY replyButton.label "Reply">
 <!ENTITY replyAllButton.label "Reply All">
+<!ENTITY replyListButton.label "Reply to List">
 <!ENTITY forwardButton.label "Forward">
 <!ENTITY fileButton.label "File">
 <!ENTITY nextButton.label "Next">
@@ -492,6 +496,7 @@ you can use these alternative items. Otherwise, their values should be empty.  -
 <!ENTITY newMsgButton.tooltip "Create a new message">
 <!ENTITY replyButton.tooltip "Reply to the message">
 <!ENTITY replyAllButton.tooltip "Reply to sender and all recipients">
+<!ENTITY replyListButton.tooltip "Reply to mailing list">
 <!ENTITY forwardButton.tooltip "Forward selected message">
 <!ENTITY fileButton.tooltip "File selected message">
 <!ENTITY nextButton.tooltip "Move to the next unread message">
@@ -654,6 +659,8 @@ you can use these alternative items. Otherwise, their values should be empty.  -
 <!ENTITY contextReplyNewsgroup.accesskey "y">
 <!ENTITY contextReplyAll.label "Reply to All">
 <!ENTITY contextReplyAll.accesskey "A">
+<!ENTITY contextReplyList.label "Reply to List">
+<!ENTITY contextReplyList.accesskey "L">
 <!ENTITY contextForward.label "Forward">
 <!ENTITY contextForward.accesskey "F">
 <!ENTITY contextForwardAsAttachment.label "Forward as Attachments">

mail/locales/en-US/chrome/messenger/msgHdrViewOverlay.dtd

@@ -60,6 +60,7 @@
 <!ENTITY archiveButton.label "archive">
 <!ENTITY hdrReplyButton.label "reply">
 <!ENTITY hdrReplyAllButton.label "reply all">
+<!ENTITY hdrReplyListButton.label "reply list">
 <!ENTITY hdrForwardButton.label "forward">
 <!ENTITY hdrJunkButton.label "junk">
 <!ENTITY trashButton.tooltiptext "delete">

mail/themes/gnomestripe/mail/primaryToolbar.css

@@ -106,7 +106,19 @@
 
 #button-replyall[disabled] {
   -moz-image-region: rect(48px 120px 72px 96px) !important;
-} 
+}
+
+#button-replylist {
+  -moz-image-region: rect(0px 120px 24px 96px);
+}
+
+#button-replylist:hover {
+  -moz-image-region: rect(24px 120px 48px 96px);
+}
+
+#button-replylist[disabled] {
+  -moz-image-region: rect(48px 120px 72px 96px) !important;
+}
 
 #button-forward {
   -moz-image-region: rect(0px 144px 24px 120px);
@@ -327,6 +339,18 @@ toolbar[iconsize="small"] #button-replyall[disabled] {
   -moz-image-region: rect(32px 80px 48px 64px) !important;
 } 
 
+toolbar[iconsize="small"] #button-replylist {
+  -moz-image-region: rect(0px 80px 16px 64px);
+}
+
+toolbar[iconsize="small"] #button-replylist:hover {
+  -moz-image-region: rect(16px 80px 32px 64px);
+}
+
+toolbar[iconsize="small"] #button-replylist[disabled] {
+  -moz-image-region: rect(32px 80px 48px 64px) !important;
+}
+
 toolbar[iconsize="small"] #button-forward {
   -moz-image-region: rect(0px 96px 16px 80px);
 }

mail/themes/pinstripe/mail/primaryToolbar.css

@@ -139,6 +139,18 @@ toolbar[mode="text"] .toolbarbutton-menubutton-button > .toolbarbutton-text {
   -moz-image-region: rect(64px 160px 96px 128px) !important;
 } 
 
+#button-replylist {
+  -moz-image-region: rect(0px 160px 32px 128px);
+}
+
+#button-replylist:hover:active {
+  -moz-image-region: rect(32px 160px 64px 128px);
+}
+
+#button-replylist[disabled] {
+  -moz-image-region: rect(64px 160px 96px 128px) !important;
+}
+
 #button-forward {
   -moz-image-region: rect(0px 192px 32px 160px);
 }
@@ -363,10 +375,22 @@ toolbar[iconsize="small"] #button-replyall {
 
 toolbar[iconsize="small"] #button-replyall:hover:active {
   -moz-image-region: rect(24px 120px 48px 96px);
-} 
+}
 
 toolbar[iconsize="small"] #button-replyall[disabled] {
   -moz-image-region: rect(48px 120px 72px 96px) !important;
+}
+
+toolbar[iconsize="small"] #button-replylist {
+  -moz-image-region: rect(0px 120px 24px 96px);
+}
+
+toolbar[iconsize="small"] #button-replylist:hover:active {
+  -moz-image-region: rect(24px 120px 48px 96px);
+} 
+
+toolbar[iconsize="small"] #button-replylist[disabled] {
+  -moz-image-region: rect(48px 120px 72px 96px) !important;
 } 
 
 toolbar[iconsize="small"] #button-forward {

mail/themes/qute/mail/primaryToolbar.css

@@ -112,6 +112,18 @@
   -moz-image-region: rect(48px 120px 72px 96px) !important;
 } 
 
+#button-replylist {
+  -moz-image-region: rect(0px 120px 24px 96px);
+}
+
+#button-replylist:hover {
+  -moz-image-region: rect(24px 120px 48px 96px);
+}
+
+#button-replylist[disabled] {
+  -moz-image-region: rect(48px 120px 72px 96px) !important;
+}
+
 #button-forward {
   -moz-image-region: rect(0px 144px 24px 120px);
 }
@@ -335,6 +347,18 @@ toolbar[iconsize="small"] #button-replyall[disabled] {
   -moz-image-region: rect(32px 80px 48px 64px) !important;
 } 
 
+toolbar[iconsize="small"] #button-replylist {
+  -moz-image-region: rect(0px 80px 16px 64px);
+}
+
+toolbar[iconsize="small"] #button-replylist:hover {
+  -moz-image-region: rect(16px 80px 32px 64px);
+}
+
+toolbar[iconsize="small"] #button-replylist[disabled] {
+  -moz-image-region: rect(32px 80px 48px 64px) !important;
+}
+
 toolbar[iconsize="small"] #button-forward {
   -moz-image-region: rect(0px 96px 16px 80px);
 }

mailnews/mime/emitters/src/nsMimeHtmlEmitter.cpp

@@ -241,6 +241,7 @@ nsresult nsMimeHtmlDisplayEmitter::BroadcastHeaders(nsIMsgHeaderSink * aHeaderSi
           PL_strcasecmp("content-type", headerInfo->name) && PL_strcasecmp("message-id", headerInfo->name) &&
           PL_strcasecmp("x-newsreader", headerInfo->name) && PL_strcasecmp("x-mimeole", headerInfo->name) &&
           PL_strcasecmp("references", headerInfo->name) && PL_strcasecmp("in-reply-to", headerInfo->name) &&
+          PL_strcasecmp("list-post", headerInfo->name) &&
           // make headerStr lower case because IndexOf is case-sensitive
          (!extraExpandedHeadersArray.Length() || (ToLowerCase(headerStr),
             extraExpandedHeadersArray.IndexOf(headerStr) ==