merge count support for deleting buffers

NEWS

@@ -3,6 +3,7 @@
 	* version 0.5.2
 	* added "s" and "a" mappings to extended hints mode for saving hint
 	  targets
+	* "d", "D" and :bdelete support count now 
 	* :back/:forward can use tabcompletion
 	* :undoall support, and tabcompletion for :undo <tab>
 	* new :redraw and Ctrl-L commands for forced redrawing of the screen

TODO

@@ -24,7 +24,6 @@ FEATURES:
 8 middleclick in content == p, and if command line is open, paste there the clipboard buffer
 7 [ctrl-o/i] to Go back to a Previous Position (done partly, however currenty does not use a per tab jumplist)
 7 whereever possible: get rid of dialogs and ask console-like dialog questions or write error prompts directly on the webpage or with :echo()
-7 3d should delete 3 tabs
 6 downloading of links to filesystem (:save <filename>)
 6 autocommands (BrowserStart, BrowserQuit, TabClose, TabOpen, TabChanged, PageLoaded, any more?)
 6 vim like mappings for caret mode and textboxes (i to start caret mode?)

content/commands.js

@@ -282,7 +282,8 @@ function Commands() //{{{
         {
             usage: ["[count]bd[elete][!]"],
             short_help: "Delete current buffer (=tab)",
-            help: "Count WILL be supported in future releases, then <code class=\"command\">:2bd</code> removes two tabs and the one to the right is selected.<br/>Do <code class=\"command\">:bdelete!</code> to select the tab to the left after removing the current tab."
+            help: "Count is supported, <code class=\"command\">:2bd</code> removes two tabs and the one to the right is selected. " +
+                  "Do <code class=\"command\">:bdelete!</code> to select the tab to the left after removing the current tab."
         }
     ));
     addDefaultCommand(new Command(["beep"],

content/mappings.js

@@ -386,7 +386,8 @@ function Mappings() //{{{
         function(count) { vimperator.tabs.remove(getBrowser().mCurrentTab, count, false, 0); },
         {
             short_help: "Delete current buffer (=tab)",
-            help: "Count WILL be supported in future releases, then <code class=\"mapping\">2d</code> removes two tabs and the one the right is selected.",
+            help: "Count is supported, <code class=\"mapping\">2d</code> removes the current and next tab and the one to the right is selected. " +
+                  "Does not wrap if <code class=\"argument\">[count]</code> is larger than available tabs to the right.",
             flags: Mappings.flags.COUNT
         }
     ));
@@ -394,7 +395,8 @@ function Mappings() //{{{
         function(count) { vimperator.tabs.remove(getBrowser().mCurrentTab, count, true, 0); },
         {
             short_help: "Delete current buffer (=tab)",
-            help: "Count WILL be supported in future releases, then <code class=\"mapping\">2d</code> removes two tabs and the one the right is selected.",
+            help: "Count is supported, <code class=\"mapping\">2D</code> removes the current and previous tab and the one to the left is selected. " +
+                  "Does not wrap if <code class=\"argument\">[count]</code> is larger than available tabs to the left.",
             flags: Mappings.flags.COUNT
         }
     ));

content/tabs.js

@@ -151,15 +151,44 @@ function Tabs() //{{{
      */
     this.remove = function(tab, count, focus_left_tab, quit_on_last_tab)
     {
-        if (count < 1) count = 1;
+        function removeOrBlankTab (tab)
+        {
+            if (getBrowser().mTabs.length > 1)
+                getBrowser().removeTab(tab);
+            else
+            {
+                vimperator.open("about:blank", vimperator.NEW_BACKGROUND_TAB);
+                getBrowser().removeTab(tab);
+            }
+        }
+
+        if (count < 1)
+            count = 1;
 
         if (quit_on_last_tab >= 1 && getBrowser().mTabs.length <= count)
             vimperator.quit(quit_on_last_tab == 2);
 
-        if (focus_left_tab && tab.previousSibling)
-            this.select("-1", false);
 
-        getBrowser().removeTab(tab);
+        var index = this.index(tab);
+        if (focus_left_tab)
+        {
+            var last_removed_tab = 0;
+            for (var i = index; i > index - count && i >= 0; i--)
+            {
+                removeOrBlankTab(this.getTab(i));
+                last_removed_tab = i > 0 ? i : 1;
+            }
+            getBrowser().mTabContainer.selectedIndex = last_removed_tab - 1;
+        }
+        else
+        {
+            var i = index + count - 1;
+            if (i >= this.count())
+                i = this.count() - 1;
+
+            for (; i >= index; i--)
+                removeOrBlankTab(this.getTab(i));
+        }
     }
 
     this.keepOnly = function(tab)