The Tor Browser: ipc/chromium/src/chrome/common/notification

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 // This file defines the type used to provide sources for NotificationService

     6 // notifications.

     8 #ifndef CHROME_COMMON_NOTIFICATION_SOURCE_H__

     9 #define CHROME_COMMON_NOTIFICATION_SOURCE_H__

    11 #include "base/basictypes.h"

    13 // Do not declare a NotificationSource directly--use either

    14 // "Source<sourceclassname>(sourceclasspointer)" or

    15 // NotificationService::AllSources().

    16 class NotificationSource {

    17  public:

    18   NotificationSource(const NotificationSource& other) : ptr_(other.ptr_) { }

    19   ~NotificationSource() {}

    21   // NotificationSource can be used as the index for a map; this method

    22   // returns the pointer to the current source as an identifier, for use as a

    23   // map index.

    24   uintptr_t map_key() const { return reinterpret_cast<uintptr_t>(ptr_); }

    26   bool operator!=(const NotificationSource& other) const {

    27     return ptr_ != other.ptr_;

    28   }

    29   bool operator==(const NotificationSource& other) const {

    30     return ptr_ == other.ptr_;

    31   }

    33  protected:

    34   NotificationSource(void* ptr) : ptr_(ptr) {}

    36   void* ptr_;

    37 };

    39 template <class T>

    40 class Source : public NotificationSource {

    41  public:

    42   Source(T* ptr) : NotificationSource(ptr) {}

    44   Source(const NotificationSource& other)

    45     : NotificationSource(other) {}

    47   T* operator->() const { return ptr(); }

    48   T* ptr() const { return static_cast<T*>(ptr_); }

    49 };

    51 #endif  // CHROME_COMMON_NOTIFICATION_SOURCE_H__

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