Make Ctrl-enter populate the vomnibar with the selected entry's URL

Thanks @Gu1nness !

Closes philc#2464, philc#2914.

pages/vomnibar.coffee

@@ -119,6 +119,8 @@ class VomnibarUI
     else if (key == "down" ||
         (event.ctrlKey && (key == "j" || key == "n")))
       return "down"
+    else if (event.ctrlKey && event.key == "Enter")
+      return "ctrl-enter"
     else if (event.key == "Enter")
       return "enter"
     else if event.key == "Delete" and event.shiftKey and not event.ctrlKey and not event.altKey
@@ -172,6 +174,12 @@ class VomnibarUI
       else
         completion = @completions[@selection]
         @hide -> completion.performAction openInNewTab
+    else if action == "ctrl-enter"
+      # Populate the vomnibar with the current selection's URL.
+      if not @customSearchMode? and @selection >= 0
+          @previousInputValue ?= @input.value
+          @input.value = @completions[@selection]?.url
+          @input.scrollLeft = @input.scrollWidth
     else if action == "delete"
       if @customSearchMode? and @input.selectionEnd == 0
         # Normally, with custom search engines, the keyword (e,g, the "w" of "w query terms") is suppressed.