Issue 119 - Switch to injecting CSS for element hiding

src/plugin/WebBrowserEventsListener.h

+/*
+ * 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#include <functional>
+#include <memory>
+
+class WebBrowserEventsListener;
+
+typedef ATL::IDispEventImpl <1, WebBrowserEventsListener,
+  &__uuidof(DWebBrowserEvents2), &LIBID_SHDocVw, 1, 1> WebBrowserEvents2Listener;
+
+typedef ATL::IDispEventImpl <2, WebBrowserEventsListener,
+  &__uuidof(HTMLDocumentEvents2), &LIBID_MSHTML, 4, 0> HTMLDocumentEvents2Listener;
+
+class ATL_NO_VTABLE WebBrowserEventsListener :
+  public ATL::CComObjectRootEx<ATL::CComMultiThreadModel>,
+  public WebBrowserEvents2Listener,
+  public HTMLDocumentEvents2Listener,
+  public IUnknown
+{
+  enum class State
+  {
+    FirstTimeLoading, Loading, Loaded
+  };
+public:
+  typedef std::function<void()> OnDestroy;
+  typedef std::function<void()> OnReloaded;
+
+  WebBrowserEventsListener();
+  ~WebBrowserEventsListener();
+  BEGIN_COM_MAP(WebBrowserEventsListener)
+    COM_INTERFACE_ENTRY(IUnknown)
+  END_COM_MAP()
+
+  DECLARE_NOT_AGGREGATABLE(WebBrowserEventsListener)
+  BEGIN_SINK_MAP(WebBrowserEventsListener)
+    SINK_ENTRY_EX(1, __uuidof(DWebBrowserEvents2), DISPID_DOCUMENTCOMPLETE, OnDocumentComplete)
+    SINK_ENTRY_EX(2, __uuidof(HTMLDocumentEvents2), DISPID_HTMLDOCUMENTEVENTS2_ONREADYSTATECHANGE, OnReadyStateChange)
+  END_SINK_MAP()
+
+  STDMETHOD(OnDocumentComplete)(IDispatch* pDisp, VARIANT* urlVariant);
+  STDMETHOD_(void, OnReadyStateChange)(IHTMLEventObj* pEvtObj);
+
+  DECLARE_PROTECT_FINAL_CONSTRUCT()
+
+  HRESULT FinalConstruct(){ return S_OK; }
+  void FinalRelease(){}
+  HRESULT Init(IWebBrowser2* webBrowser, const OnDestroy& onDestroy, const OnReloaded& onReloaded);
+
+private:
+  void emitReloaded();
+private:
+  ATL::CComPtr<IWebBrowser2> m_browser;
+  OnDestroy m_onDestroy;
+  OnReloaded m_onReloaded;
+  bool m_isDocumentEvents2Connected;
+  State m_state;
+};