nsAppShell.h - mozsearch

Enable keyboard shortcuts

/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */

/* 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 nsAppShell_h__

#define nsAppShell_h__

#include "nsBaseAppShell.h"

#include <windows.h>

#include <vector>

#include "mozilla/TimeStamp.h"

#include "mozilla/Mutex.h"

// The maximum time we allow before forcing a native event callback.

// In seconds.

#define NATIVE_EVENT_STARVATION_LIMIT 1

/**

 * Native Win32 Application shell wrapper

*/

class nsAppShell final : public nsBaseAppShell {

 public:

  nsAppShell()

      : mEventWnd(nullptr),

        mNativeCallbackPending(false),

        mLastNativeEventScheduledMutex(

            "nsAppShell::mLastNativeEventScheduledMutex") {}

  typedef mozilla::TimeStamp TimeStamp;

  typedef mozilla::Mutex Mutex;

  nsresult Init();

  void DoProcessMoreGeckoEvents();

  static UINT GetTaskbarButtonCreatedMessage();

  NS_IMETHOD AfterProcessNextEvent(nsIThreadInternal* thread,

                                   bool eventWasProcessed) final;

 protected:

  NS_IMETHOD Run() override;

  NS_IMETHOD Observe(nsISupports* aSubject, const char* aTopic,

                     const char16_t* aData) override;

  virtual void ScheduleNativeEventCallback();

  virtual bool ProcessNextNativeEvent(bool mayWait);

  virtual ~nsAppShell();

  static LRESULT CALLBACK EventWindowProc(HWND, UINT, WPARAM, LPARAM);

 protected:

  nsresult InitHiddenWindow();

  HWND mEventWnd;

  bool mNativeCallbackPending;

  Mutex mLastNativeEventScheduledMutex MOZ_UNANNOTATED;

  TimeStamp mLastNativeEventScheduled;

  std::vector<MSG> mMsgsToRepost;

 private:

  wchar_t mTimezoneName[128];

};

#endif  // nsAppShell_h__