Issue #1596, #1720 - Make status bar menu consistent with plugin abilities

src/plugin/PluginTabBase.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 44 matching lines @@
 CPluginTabBase::~CPluginTabBase()
 {
   delete m_traverser;
   m_traverser = NULL;
   m_continueThreadRunning = false;
   if (m_thread.joinable()) {
     m_thread.join();
   }
 }
 
+/**
+ * ABP only intercepts protocols "http:" and "https:".
+ * We can disable any domain used in those protocol with an appropriate whitelist filter.
+ * Thus, the possibility to disable on a particular site depends only on the protocol.
+ */
+bool CPluginTabBase::IsPossibleToDisableOnSite()
+{
+  auto url = GetDocumentUrl();
+  return BeginsWith(url, L"http:") || BeginsWith(url, L"https:");
+}
+
 void CPluginTabBase::OnActivate()
 {
   m_isActivated = true;
 }
 
 
 void CPluginTabBase::OnUpdate()
 {
   m_isActivated = true;
 }
@@ skipping 359 matching lines @@
           LogQueue::LogPluginError(pluginError.GetErrorCode(), pluginError.GetErrorId(), pluginError.GetErrorSubid(), pluginError.GetErrorDescription(), true, pluginError.GetProcessId(), pluginError.GetThreadId());
         }
 
         // Non-hanging sleep
         Sleep(50);
       }
 
       tabLoopIteration++;
   }
 }