michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_plugins_PluginHangUIChild_h
michael@0: #define mozilla_plugins_PluginHangUIChild_h
michael@0: 
michael@0: #include "MiniShmChild.h"
michael@0: 
michael@0: #include <string>
michael@0: 
michael@0: #include <windows.h>
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace plugins {
michael@0: 
michael@0: /**
michael@0:  * This class implements the plugin-hang-ui.
michael@0:  *
michael@0:  * NOTE: PluginHangUIChild is *not* an IPDL actor! In this case, "Child" 
michael@0:  *       is describing the fact that plugin-hang-ui is a child process to the 
michael@0:  *       firefox process, which is the PluginHangUIParent.
michael@0:  *       PluginHangUIParent and PluginHangUIChild are a matched pair.
michael@0:  * @see PluginHangUIParent
michael@0:  */
michael@0: class PluginHangUIChild : public MiniShmObserver
michael@0: {
michael@0: public:
michael@0:   PluginHangUIChild();
michael@0:   virtual ~PluginHangUIChild();
michael@0: 
michael@0:   bool
michael@0:   Init(int aArgc, wchar_t* aArgv[]);
michael@0: 
michael@0:   /**
michael@0:    * Displays the Plugin Hang UI and does not return until the UI has 
michael@0:    * been dismissed.
michael@0:    *
michael@0:    * @return true if the UI was displayed and the user response was 
michael@0:    *         successfully sent back to the parent. Otherwise false.
michael@0:    */
michael@0:   bool
michael@0:   Show();
michael@0: 
michael@0:   /**
michael@0:    * Causes the calling thread to wait either for the Hang UI to be 
michael@0:    * dismissed or for the parent process to terminate. This should 
michael@0:    * be called by the main thread.
michael@0:    *
michael@0:    * @return true unless there was an error initiating the wait
michael@0:    */
michael@0:   bool
michael@0:   WaitForDismissal();
michael@0: 
michael@0:   virtual void
michael@0:   OnMiniShmEvent(MiniShmBase* aMiniShmObj) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:   bool
michael@0:   RecvShow();
michael@0: 
michael@0:   bool
michael@0:   RecvCancel();
michael@0: 
michael@0:   bool
michael@0:   SetMainThread();
michael@0: 
michael@0:   void
michael@0:   ResizeButtons();
michael@0: 
michael@0:   INT_PTR
michael@0:   HangUIDlgProc(HWND aDlgHandle, UINT aMsgCode, WPARAM aWParam, LPARAM aLParam);
michael@0: 
michael@0:   static VOID CALLBACK
michael@0:   ShowAPC(ULONG_PTR aContext);
michael@0: 
michael@0:   static INT_PTR CALLBACK
michael@0:   SHangUIDlgProc(HWND aDlgHandle, UINT aMsgCode, WPARAM aWParam,
michael@0:                  LPARAM aLParam);
michael@0: 
michael@0:   static VOID CALLBACK
michael@0:   SOnParentProcessExit(PVOID aObject, BOOLEAN aIsTimer);
michael@0: 
michael@0:   static PluginHangUIChild *sSelf;
michael@0: 
michael@0:   const wchar_t* mMessageText;
michael@0:   const wchar_t* mWindowTitle;
michael@0:   const wchar_t* mWaitBtnText;
michael@0:   const wchar_t* mKillBtnText;
michael@0:   const wchar_t* mNoFutureText;
michael@0:   unsigned int mResponseBits;
michael@0:   HWND mParentWindow;
michael@0:   HWND mDlgHandle;
michael@0:   HANDLE mMainThread;
michael@0:   HANDLE mParentProcess;
michael@0:   HANDLE mRegWaitProcess;
michael@0:   DWORD mIPCTimeoutMs;
michael@0:   MiniShmChild mMiniShm;
michael@0: 
michael@0:   static const int kExpectedMinimumArgc;
michael@0: 
michael@0:   typedef HRESULT (WINAPI *SETAPPUSERMODELID)(PCWSTR);
michael@0: 
michael@0:   DISALLOW_COPY_AND_ASSIGN(PluginHangUIChild);
michael@0: };
michael@0: 
michael@0: } // namespace plugins
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif // mozilla_plugins_PluginHangUIChild_h
michael@0: