[linux] support for simple xselection pasting

29 Apr 2016, Sérgio Basto - Do not create a display when already exist one.

First version: Matthias Kortstiege <mkortstiege@kodi.tv> 4 Jul 2015

xbmc/windowing/X11/WinSystemX11.cpp

@@ -46,6 +46,8 @@
 #include "../WinEventsX11.h"
 #include "input/InputManager.h"
 
+#include <limits.h>
+
 #define EGL_NO_CONFIG (EGLConfig)0
 
 CWinSystemX11::CWinSystemX11() : CWinSystemBase()
@@ -834,6 +836,11 @@ void CWinSystemX11::NotifyAppFocusChange(bool bGaining)
   }
   if (!bGaining)
     m_bIgnoreNextFocusMessage = false;
+  else
+  {
+    Atom utf8_string = XInternAtom(m_dpy, "UTF8_STRING", False);
+    XConvertSelection(m_dpy, XA_PRIMARY, utf8_string, None, m_glWindow, CurrentTime);
+  }
 }
 
 bool CWinSystemX11::Minimize()
@@ -1479,4 +1486,36 @@ void CWinSystemX11::UpdateCrtc()
   g_graphicsContext.SetFPS(fps);
 }
 
+std::string CWinSystemX11::GetClipboardText(void)
+{
+  if (!m_dpy)
+     return "";
+
+  std::string result;
+  for(unsigned long offset = 0;;)
+  {
+      Atom real_type = None;
+      unsigned char *data;
+      unsigned long items_read, items_left = 0;
+      int real_format = 0;
+
+      Atom utf8_string = XInternAtom(m_dpy, "UTF8_STRING", False);
+      XGetWindowProperty(m_dpy, m_glWindow, utf8_string, offset, INT_MAX, False,
+                         AnyPropertyType, &real_type, &real_format, &items_read, &items_left, &data);
+
+      if(items_read)
+      {
+        result.append(reinterpret_cast<const char*>(data), items_read);
+        offset += items_read;
+      }
+
+      XDeleteProperty(m_dpy, m_glWindow, utf8_string);
+
+      if(!items_left)
+        break;
+  }
+
+  return result;
+}
+
 #endif

xbmc/windowing/X11/WinSystemX11.h

@@ -89,6 +89,8 @@ class CWinSystemX11 : public CWinSystemBase
   void RecreateWindow();
   int GetCrtc() { return m_crtc; }
 
+  std::string GetClipboardText(void);
+
 protected:
   bool RefreshGlxContext(bool force);
   void OnLostDevice();