Basic clipboard_push_text support for linux

5 files changed, 71 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 6b410a6..5ac4ae5 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ PYCOMMAND := $(PY_BIN) getheader.py
 
 CFLAGS := -w -std=c99 -D_POSIX_C_SOURCE=200112L -DLUACONSOLE -Iincludes/
 OFLAGS := -O3 -ffast-math -ftree-vectorize -funsafe-math-optimizations
-LFLAGS := -lpthread -lSDL -lm -lbz2 -llua5.1 #-lpython$(PY_VERSION) -L$(PY_LIBPATH) -I$(PY_INCPATH) $(PY_LDFLAGS)
+LFLAGS := -lpthread -lSDL -lm -lbz2 -lX11 -llua5.1 #-lpython$(PY_VERSION) -L$(PY_LIBPATH) -I$(PY_INCPATH) $(PY_LDFLAGS)
 LFLAGS_X := -lm -lbz2 -lSDLmain -I/Library/Frameworks/Python.framework/Versions/$(PY_VERSION)/include/python$(PY_VERSION)
 MFLAGS_SSE3 := -march=native -DX86 -DX86_SSE3 -msse3
 MFLAGS_SSE2 := -march=native -DX86 -DX86_SSE2 -msse2
diff --git a/includes/interface.h b/includes/interface.h
index da1f30c..aff63e4 100644
--- a/includes/interface.h
+++ b/includes/interface.h
@@ -1,6 +1,9 @@
 #ifndef INTERFACE_H
 #define INTERFACE_H
 #include <SDL/SDL.h>
+#if (defined(LIN32) || defined(LIN64)) && defined(SDL_VIDEO_DRIVER_X11)
+#include <SDL/SDL_syswm.h>
+#endif
 #include "graphics.h"
 
 struct menu_section
@@ -130,6 +133,11 @@ typedef struct ui_richtext ui_richtext;
 int SLALT;
 extern SDLMod sdl_mod;
 extern int sdl_key, sdl_wheel, sdl_caps, sdl_ascii, sdl_zoom_trig;
+#if (defined(LIN32) || defined(LIN64)) && defined(SDL_VIDEO_DRIVER_X11)
+extern SDL_SysWMinfo sdl_wminfo;
+extern Atom XA_CLIPBOARD, XA_TARGETS;
+#endif
+
 extern char *shift_0;
 extern char *shift_1;
 extern int svf_messages;
diff --git a/includes/misc.h b/includes/misc.h
index 51d7b98..5c3a874 100644
--- a/includes/misc.h
+++ b/includes/misc.h
@@ -64,6 +64,8 @@ void clipboard_push_text(char * text);
 
 char * clipboard_pull_text();
 
+extern char *clipboard_text;
+
 int register_extension();
 
 int cpu_check(void);
diff --git a/src/interface.c b/src/interface.c
index 4105754..002d4c5 100644
--- a/src/interface.c
+++ b/src/interface.c
@@ -24,6 +24,10 @@
 
 SDLMod sdl_mod;
 int sdl_key, sdl_wheel, sdl_caps=0, sdl_ascii, sdl_zoom_trig=0;
+#if (defined(LIN32) || defined(LIN64)) && defined(SDL_VIDEO_DRIVER_X11)
+SDL_SysWMinfo sdl_wminfo;
+Atom XA_CLIPBOARD, XA_TARGETS;
+#endif
 
 char *shift_0="`1234567890-=[]\\;',./";
 char *shift_1="~!@#$%^&*()_+{}|:\"<>?";
@@ -2255,6 +2259,50 @@ int sdl_poll(void)
 			break;
 		case SDL_QUIT:
 			return 1;
+		case SDL_SYSWMEVENT:
+#if (defined(LIN32) || defined(LIN64)) && defined(SDL_VIDEO_DRIVER_X11)
+			if (event.syswm.msg->subsystem != SDL_SYSWM_X11)
+				break;
+			sdl_wminfo.info.x11.lock_func();
+			XEvent xe = event.syswm.msg->event.xevent;
+			if (xe.type==SelectionClear)
+			{
+				if (clipboard_text!=NULL) {
+					free(clipboard_text);
+					clipboard_text = NULL;
+				}
+			}
+			else if (xe.type==SelectionRequest)
+			{
+				XEvent xr;
+				xr.xselection.type = SelectionNotify;
+				xr.xselection.requestor = xe.xselectionrequest.requestor;
+				xr.xselection.selection = xe.xselectionrequest.selection;
+				xr.xselection.target = xe.xselectionrequest.target;
+				xr.xselection.property = xe.xselectionrequest.property;
+				xr.xselection.time = xe.xselectionrequest.time;
+				if (xe.xselectionrequest.target==XA_TARGETS)
+				{
+					// send list of supported formats
+					Atom targets[] = {XA_TARGETS, XA_STRING};
+					xr.xselection.property = xe.xselectionrequest.property;
+					XChangeProperty(sdl_wminfo.info.x11.display, xe.xselectionrequest.requestor, xe.xselectionrequest.property, XA_ATOM, 32, PropModeReplace, (unsigned char*)targets, (int)(sizeof(targets)/sizeof(Atom)));
+				}
+				// TODO: Supporting more targets would be nice
+				else if (xe.xselectionrequest.target==XA_STRING && clipboard_text)
+				{
+					XChangeProperty(sdl_wminfo.info.x11.display, xe.xselectionrequest.requestor, xe.xselectionrequest.property, xe.xselectionrequest.target, 8, PropModeReplace, clipboard_text, strlen(clipboard_text)+1);
+				}
+				else
+				{
+					// refuse clipboard request
+					xr.xselection.property = None;
+				}
+				XSendEvent(sdl_wminfo.info.x11.display, xe.xselectionrequest.requestor, 0, 0, &xr);
+			}
+			sdl_wminfo.info.x11.unlock_func();
+#endif
+			continue;
 		}
 	}
 	sdl_mod = SDL_GetModState();
diff --git a/src/misc.c b/src/misc.c
index cf0bd7c..ef4b281 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -20,6 +20,8 @@
 #include <ApplicationServices/ApplicationServices.h>
 #endif
 
+char *clipboard_text = NULL;
+
 //Signum function
 #if defined(WIN32) && !defined(__GNUC__)
 _inline int isign(float i)
@@ -421,6 +423,16 @@ void clipboard_push_text(char * text)
 		SetClipboardData(CF_TEXT, cbuffer);
 		CloseClipboard();
 	}
+#elif (defined(LIN32) || defined(LIN64)) && defined(SDL_VIDEO_DRIVER_X11)
+	if (clipboard_text!=NULL) {
+		free(clipboard_text);
+		clipboard_text = NULL;
+	}
+	clipboard_text = mystrdup(text);
+	sdl_wminfo.info.x11.lock_func();
+	XSetSelectionOwner(sdl_wminfo.info.x11.display, XA_CLIPBOARD, sdl_wminfo.info.x11.window, CurrentTime);
+	XFlush(sdl_wminfo.info.x11.display);
+	sdl_wminfo.info.x11.unlock_func();
 #else
 	printf("Not implemented: put text on clipboard \"%s\"\n", text);
 #endif