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gui-wl: set primary selection

--- a/gui-wl/Makefile

+++ b/gui-wl/Makefile

@@ -4,15 +4,18 @@

 XDG_SHELL=/usr/share/wayland-protocols/stable/xdg-shell/xdg-shell.xml

 XDG_DECO=/usr/share/wayland-protocols/unstable/xdg-decoration/xdg-decoration-unstable-v1.xml

+XDG_PRIMSEL=/usr/share/wayland-protocols/unstable/primary-selection/primary-selection-unstable-v1.xml

 HFILES=\

 	xdg-shell-protocol.h\

 	xdg-decoration-protocol.h\

+	xdg-primary-selection-protocol.h\

 	wl-inc.h\

 OFILES=\

 	xdg-shell-protocol.$O\

 	xdg-decoration-protocol.$O\

+	xdg-primary-selection-protocol.$O\

 	wl-cb.$O\

 	wl-screen.$O\

 	wl-util.$O\

@@ -28,6 +31,12 @@

 xdg-decoration-protocol.h:

 	wayland-scanner client-header < $(XDG_DECO) > $@ || { rm -f $@; exit 1; }

+

+xdg-primary-selection-protocol.c:

+	wayland-scanner private-code < $(XDG_PRIMSEL) > $@ || { rm -f $@; exit 1; }

+

+xdg-primary-selection-protocol.h:

+	wayland-scanner client-header < $(XDG_PRIMSEL) > $@ || { rm -f $@; exit 1; }

 default: $(LIB)

 $(LIB): $(HFILES) $(OFILES)

--- a/gui-wl/wl-cb.c

+++ b/gui-wl/wl-cb.c

@@ -10,6 +10,7 @@

 #include <xkbcommon/xkbcommon.h>

 #include "xdg-shell-protocol.h"

 #include "xdg-decoration-protocol.h"

+#include "xdg-primary-selection-protocol.h"

 #include "u.h"

 #include "lib.h"

@@ -415,6 +416,44 @@

 };

 static void

+primsel_source_handle_send(void *data, struct zwp_primary_selection_source_v1 *source, const char *mime_type, int fd)

+{

+	ulong n;

+	ulong pos;

+	ulong len;

+	Wlwin *wl;

+

+	if(strcmp(mime_type, "text/plain;charset=utf-8") != 0)

+		return;

+

+	wl = data;

+	qlock(&wl->clip.lk);

+	len = strlen(wl->clip.content);

+	for(pos = 0; (n = write(fd, wl->clip.content+pos, len-pos)) > 0 && pos < len; pos += n)

+		;

+	wl->clip.primsel_posted = 0;

+	close(fd);

+	qunlock(&wl->clip.lk);

+}

+

+static void

+primsel_source_handle_cancelled(void *data, struct zwp_primary_selection_source_v1 *source)

+{

+	Wlwin *wl;

+

+	wl = data;

+	qlock(&wl->clip.lk);

+	wl->clip.primsel_posted = 0;

+	qunlock(&wl->clip.lk);

+	zwp_primary_selection_source_v1_destroy(source);

+}

+

+static const struct zwp_primary_selection_source_v1_listener primsel_source_listener = {

+	.send = primsel_source_handle_send,

+	.cancelled = primsel_source_handle_cancelled,

+};

+

+static void

 data_device_handle_data_offer(void *data, struct wl_data_device *data_device, struct wl_data_offer *offer)

 {

 }

@@ -492,6 +531,8 @@

 		wl->data_device_manager = wl_registry_bind(registry, name, &wl_data_device_manager_interface, 3);

 	} else if(strcmp(interface, zxdg_decoration_manager_v1_interface.name) == 0) {

 		wl->decoman = wl_registry_bind(registry, name, &zxdg_decoration_manager_v1_interface, 1);

+	} else if(strcmp(interface, zwp_primary_selection_device_manager_v1_interface.name) == 0) {

+		wl->primsel = wl_registry_bind(registry, name, &zwp_primary_selection_device_manager_v1_interface, 1);

 	}

 }

@@ -525,9 +566,10 @@

 	wl_display_roundtrip(wl->display);

 	wl->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);

-	if(wl->shm == nil || wl->compositor == nil || wl->xdg_wm_base == nil || wl->seat == nil || wl->decoman == nil)

+	if(wl->shm == nil || wl->compositor == nil || wl->xdg_wm_base == nil || wl->seat == nil || wl->decoman == nil || wl->primsel == nil)

 		sysfatal("Registration fell short");

+	wl->primsel_device = zwp_primary_selection_device_manager_v1_get_device(wl->primsel, wl->seat);

 	wl->data_device = wl_data_device_manager_get_data_device(wl->data_device_manager, wl->seat);

 	wl_data_device_add_listener(wl->data_device, &data_device_listener, wl);

@@ -560,20 +602,30 @@

 wlsetsnarf(Wlwin *wl, char *s)

 {

 	struct wl_data_source *source;

+	struct zwp_primary_selection_source_v1 *psource;

 	qlock(&wl->clip.lk);

 	free(wl->clip.content);

 	wl->clip.content = strdup(s);

+

 	/* Do we still own the clipboard? */

-	if(wl->clip.posted == 1)

-		goto done;

+	if(wl->clip.posted == 0){

+		source = wl_data_device_manager_create_data_source(wl->data_device_manager);

+		wl_data_source_add_listener(source, &data_source_listener, wl);

+		wl_data_source_offer(source, "text/plain;charset=utf-8");

+		wl_data_device_set_selection(wl->data_device, source, wl->clip.serial);

+		wl->clip.posted = 1;

+	}

-	source = wl_data_device_manager_create_data_source(wl->data_device_manager);

-	wl_data_source_add_listener(source, &data_source_listener, wl);

-	wl_data_source_offer(source, "text/plain;charset=utf-8");

-	wl_data_device_set_selection(wl->data_device, source, wl->clip.serial);

-	wl->clip.posted = 1;

-done:

+	/* Primary selection */

+	if(wl->clip.primsel_posted == 0){

+		psource = zwp_primary_selection_device_manager_v1_create_source(wl->primsel);

+		zwp_primary_selection_source_v1_add_listener(psource, &primsel_source_listener, wl);

+		zwp_primary_selection_source_v1_offer(psource, "text/plain;charset=utf-8");

+		zwp_primary_selection_device_v1_set_selection(wl->primsel_device, psource, wl->clip.serial);

+		wl->clip.primsel_posted = 1;

+	}

+

 	qunlock(&wl->clip.lk);

 }

--- a/gui-wl/wl-inc.h

+++ b/gui-wl/wl-inc.h

@@ -25,6 +25,7 @@

 	 * Posted stores if we already made

 	 * our round trip */

 	int posted;

+	int primsel_posted;

 };

 struct Mouse {

@@ -66,6 +67,9 @@

 	struct xkb_context *xkb_context;

 	struct zxdg_decoration_manager_v1 *decoman;

+

+	struct zwp_primary_selection_device_manager_v1 *primsel;

+	struct zwp_primary_selection_device_v1 *primsel_device;

 };

 void wlallocbuffer(Wlwin*);