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      1 /*
      2  * libjingle
      3  * Copyright 2010 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_LINUXWINDOWPICKER_H_
     29 #define TALK_BASE_LINUXWINDOWPICKER_H_
     30 
     31 #include "talk/base/basictypes.h"
     32 #include "talk/base/scoped_ptr.h"
     33 #include "talk/base/windowpicker.h"
     34 
     35 // Avoid include <X11/Xlib.h>.
     36 struct _XDisplay;
     37 typedef unsigned long Window;
     38 
     39 namespace talk_base {
     40 
     41 class XWindowEnumerator;
     42 
     43 class LinuxWindowPicker : public WindowPicker {
     44  public:
     45   LinuxWindowPicker();
     46   ~LinuxWindowPicker();
     47 
     48   static bool IsDesktopElement(_XDisplay* display, Window window);
     49 
     50   virtual bool Init();
     51   virtual bool IsVisible(const WindowId& id);
     52   virtual bool MoveToFront(const WindowId& id);
     53   virtual bool GetWindowList(WindowDescriptionList* descriptions);
     54   virtual bool GetDesktopList(DesktopDescriptionList* descriptions);
     55   virtual bool GetDesktopDimensions(const DesktopId& id, int* width,
     56                                     int* height);
     57   uint8* GetWindowIcon(const WindowId& id, int* width, int* height);
     58   uint8* GetWindowThumbnail(const WindowId& id, int width, int height);
     59   int GetNumDesktops();
     60   uint8* GetDesktopThumbnail(const DesktopId& id, int width, int height);
     61 
     62  private:
     63   scoped_ptr<XWindowEnumerator> enumerator_;
     64 };
     65 
     66 }  // namespace talk_base
     67 
     68 #endif  // TALK_BASE_LINUXWINDOWPICKER_H_
     69