Call the Sanitize autocommand when clearing each private item.

--HG--
extra : transplant_source : a%AB%B2%02%28R%3EM%E5%AC%7C%CB%18%2A%AA9%FEbt%09

common/content/sanitizer.js

@@ -253,6 +253,21 @@ function Sanitizer() //{{{
         }
     });
 
+    // call Sanitize autocommand
+    for (let [name, item] in Iterator(self.items))
+    {
+        let arg = prefToArg(name);
+
+        if (item.clear)
+        {
+            let func = item.clear;
+            item.clear = function () {
+                autocommands.trigger("Sanitize", { name: arg })
+                func.call(item);
+            }
+        }
+    }
+
     self.getClearRange = Sanitizer.getClearRange;
 
     // Largely ripped from from browser/base/content/sanitize.js so we can override

vimperator/content/config.js

@@ -58,6 +58,7 @@ const config = { //{{{
                    ["PageLoadPre",        "Triggered after a page load is initiated"],
                    ["PageLoad",           "Triggered when a page gets (re)loaded/opened"],
                    ["PrivateMode",        "Triggered when private mode is activated or deactivated"],
+                   ["Sanitize",           "Triggered when a sanitizeable item is cleared"],
                    ["ShellCmdPost",       "Triggered after executing a shell command with :!cmd"],
                    ["VimperatorEnter",    "Triggered after Firefox starts"],
                    ["VimperatorLeavePre", "Triggered before exiting Firefox, just before destroying each module"],

vimperator/locale/en-US/autocommands.txt

@@ -58,7 +58,7 @@ The following keywords are available where relevant:
 |*<size>*   |The size of a downloaded file. Only for *DownloadPost*.
 |*<file>*   |The target destination of a download. Only for *DownloadPost*.
 |*<state>*  |The new state. Only for *Fullscreen* and *PrivateMode*.
-|*<name>*   |The color scheme name. Only for *ColorScheme*.
+|*<name>*   |The name of the item. Only for *ColorScheme* and *Sanitize*.
 |===============================================================================
 
 ________________________________________________________________________________