Bug 254542 Support middle-clicks in history p=trev@gtchat.de r=me sr=dmose a=asa

xpfe/components/history/resources/history-panel.xul

@@ -61,7 +61,7 @@
   </keyset>
   <popupset id="historyContextMenu"/>
   <!-- use deep merging to hide certain columns by default -->
-  <tree id="historyTree" onfocus="goUpdateSelectEditMenuItems();">
+  <tree id="historyTree" onfocus="goUpdateSelectEditMenuItems();" seltype="single">
     <treecols id="historyTreeCols">
       <treecol id="Name"/>
       <splitter id="pre-URL-splitter"/>

xpfe/components/history/resources/history.js

@@ -61,6 +61,10 @@ function HistoryCommonInit()
     var historyController = new nsHistoryController;
     gHistoryTree.controllers.appendController(historyController);
 
+    gPrefService = Components.classes["@mozilla.org/preferences-service;1"]
+                              .getService(Components.interfaces.nsIPrefBranch);
+    PREF = gPrefService;    // need this for bookmarks.js
+
     if ("arguments" in window && window.arguments[0] && window.arguments.length >= 1) {
         // We have been supplied a resource URI to root the tree on
         var uri = window.arguments[0];
@@ -77,8 +81,6 @@ function HistoryCommonInit()
         document.getElementById("groupingMenu").setAttribute("hidden", "true");
     }
     else {
-        gPrefService = Components.classes["@mozilla.org/preferences-service;1"]
-                                 .getService(Components.interfaces.nsIPrefBranch);
         try {
             gHistoryGrouping = gPrefService.getCharPref("browser.history.grouping");
         }
@@ -135,19 +137,24 @@ function historyOnClick(aEvent)
   // This is kind of a hack but matches the currently implemented behaviour. 
   // If a status bar is not present, assume we're in sidebar mode, and thus single clicks on containers
   // will open the container. Single clicks on non-containers are handled below in historyOnSelect.
-  if (!gHistoryStatus && aEvent.button == 0) {
+  if (gHistoryStatus && aEvent.button == 0)
+    return;
+
+  var target = BookmarksUtils.getBrowserTargetFromEvent(aEvent);
+  if (!target)
+    return;
+
   var row = { };
   var col = { };
   var elt = { };
   gHistoryTree.treeBoxObject.getCellAt(aEvent.clientX, aEvent.clientY, row, col, elt);
   if (row.value >= 0 && col.value) {
     if (!isContainer(gHistoryTree, row.value))
-        OpenURL("current");
-      else if (elt.value != "twisty")
+      OpenURL(target);
+    else if (aEvent.button == 0 && elt.value != "twisty")
       gHistoryTree.treeBoxObject.view.toggleOpenState(row.value);
   }
 }
-}
 
 function historyOnSelect()
 {
@@ -331,7 +338,7 @@ function OpenURL(aTarget)
         }
       } else {
         if (URLArray.length > 0)
-          OpenURLArrayInTabs(URLArray);
+          OpenURLArrayInTabs(URLArray, aTarget == "tab_background");
       }
     }
     else if (!isContainer(gHistoryTree, currentIndex))
@@ -341,14 +348,16 @@ function OpenURL(aTarget)
 
 // This opens the URLs contained in the given array in new tabs
 // of the most recent window, creates a new window if necessary.
-function OpenURLArrayInTabs(aURLArray)
+function OpenURLArrayInTabs(aURLArray, aBackground)
 {
   var browserWin = getTopWin();
   if (browserWin) {
     var browser = browserWin.getBrowser();
-    browser.selectedTab = browser.addTab(aURLArray[0]);
+    var tab = browser.addTab(aURLArray[0]);
+    if (!aBackground)
+      browser.selectedTab = tab;
     for (var i = 1; i < aURLArray.length; ++i)
-      tab = browser.addTab(aURLArray[i]);
+      browser.addTab(aURLArray[i]);
   } else {
     openTopWin(aURLArray.join("\n")); // Pretend that we're a home page group
   }

xpfe/components/history/resources/historyTreeOverlay.xul

@@ -76,7 +76,7 @@
       <menuitem id="miOpenInNewWindow" label="&openLinkCmd.label;" accesskey="&openLinkCmd.accesskey;"
                 oncommand="OpenURL('window');"/>
       <menuitem id="miOpenInNewTab" label="&openLinkCmdInTab.label;" accesskey="&openLinkCmdInTab.accesskey;"
-                oncommand="OpenURL('tab');"/>
+                oncommand="OpenURL(BookmarksUtils.shouldLoadTabInBackground(event) ? 'tab_background' : 'tab');"/>
       <menuseparator id="pre-bookmarks-separator"/>
       <menuitem id="miAddBookmark" label="&bookmarkLinkCmd.label;" accesskey="&bookmarkLinkCmd.accesskey;" oncommand="historyAddBookmarks();"/>
       <menuitem id="miCopyLinkLocation" label="&copyLinkCmd.label;" accesskey="&copyLinkCmd.accesskey;"
@@ -93,12 +93,12 @@
   <tree id="historyTree" flex="1" enableColumnDrag="true" class="plain"
             context="historyMenu"
             datasources="rdf:history" ref="NC:HistoryByDate" flags="dont-build-content"
-            onkeypress="if (event.keyCode == 13) OpenURL(event.ctrlKey || event.metaKey ? 'window' : 'current');"
+            onkeypress="if (event.keyCode == 13) OpenURL(BookmarksUtils.getBrowserTargetFromEvent(event));"
             onselect="this.view.selectionChanged();
                       historyOnSelect();"
             onclick="historyOnClick(event);"
             ondraggesture="if (event.originalTarget.localName == 'treechildren') nsDragAndDrop.startDrag(event, historyDNDObserver);"
-            ondblclick="if (validClickConditions(event)) OpenURL(event.ctrlKey || event.metaKey ? 'window' : 'current');">
+            ondblclick="if (validClickConditions(event)) OpenURL(BookmarksUtils.getBrowserTargetFromEvent(event));">
     <template>
       <rule>
         <treechildren>