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