Home | History | Annotate | Download | only in base 
      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_BASE_WINDOW_H_
     29 #define TALK_BASE_WINDOW_H_
     30 
     31 #include "talk/base/stringencode.h"
     32 
     33 // Define platform specific window types.
     34 #if defined(LINUX)
     35 typedef unsigned long Window;  // Avoid include <X11/Xlib.h>.
     36 #elif defined(WIN32)
     37 // We commonly include win32.h in talk/base so just include it here.
     38 #include "talk/base/win32.h"  // Include HWND, HMONITOR.
     39 #elif defined(OSX)
     40 typedef unsigned int CGWindowID;
     41 typedef unsigned int CGDirectDisplayID;
     42 #endif
     43 
     44 namespace talk_base {
     45 
     46 class WindowId {
     47  public:
     48   // Define WindowT for each platform.
     49 #if defined(LINUX)
     50   typedef Window WindowT;
     51 #elif defined(WIN32)
     52   typedef HWND WindowT;
     53 #elif defined(OSX)
     54   typedef CGWindowID WindowT;
     55 #else
     56   typedef unsigned int WindowT;
     57 #endif
     58 
     59   static WindowId Cast(uint64 id) {
     60 #if defined(WIN32)
     61     return WindowId(reinterpret_cast<WindowId::WindowT>(id));
     62 #else
     63     return WindowId(static_cast<WindowId::WindowT>(id));
     64 #endif
     65   }
     66 
     67   static uint64 Format(const WindowT& id) {
     68 #if defined(WIN32)
     69     return static_cast<uint64>(reinterpret_cast<uintptr_t>(id));
     70 #else
     71     return static_cast<uint64>(id);
     72 #endif
     73   }
     74 
     75   WindowId() : id_(0) {}
     76   WindowId(const WindowT& id) : id_(id) {}  // NOLINT
     77   const WindowT& id() const { return id_; }
     78   bool IsValid() const { return id_ != 0; }
     79   bool Equals(const WindowId& other) const {
     80     return id_ == other.id();
     81   }
     82 
     83  private:
     84   WindowT id_;
     85 };
     86 
     87 class DesktopId {
     88  public:
     89   // Define DesktopT for each platform.
     90 #if defined(LINUX)
     91   typedef Window DesktopT;
     92 #elif defined(WIN32)
     93   typedef HMONITOR DesktopT;
     94 #elif defined(OSX)
     95   typedef CGDirectDisplayID DesktopT;
     96 #else
     97   typedef unsigned int DesktopT;
     98 #endif
     99 
    100   static DesktopId Cast(int id, int index) {
    101 #if defined(WIN32)
    102     return DesktopId(reinterpret_cast<DesktopId::DesktopT>(id), index);
    103 #else
    104     return DesktopId(static_cast<DesktopId::DesktopT>(id), index);
    105 #endif
    106   }
    107 
    108   DesktopId() : id_(0), index_(-1) {}
    109   DesktopId(const DesktopT& id, int index)  // NOLINT
    110       : id_(id), index_(index) {
    111   }
    112   const DesktopT& id() const { return id_; }
    113   int index() const { return index_; }
    114   bool IsValid() const { return index_ != -1; }
    115   bool Equals(const DesktopId& other) const {
    116     return id_ == other.id() && index_ == other.index();
    117   }
    118 
    119  private:
    120   // Id is the platform specific desktop identifier.
    121   DesktopT id_;
    122   // Index is the desktop index as enumerated by each platform.
    123   // Desktop capturer typically takes the index instead of id.
    124   int index_;
    125 };
    126 
    127 // Window event types.
    128 enum WindowEvent {
    129   WE_RESIZE = 0,
    130   WE_CLOSE = 1,
    131   WE_MINIMIZE = 2,
    132   WE_RESTORE = 3,
    133 };
    134 
    135 inline std::string ToString(const WindowId& window) {
    136   return ToString(window.id());
    137 }
    138 
    139 }  // namespace talk_base
    140 
    141 #endif  // TALK_BASE_WINDOW_H_
    142