From cf5a79ea608814e3eed9436b34a2cfe174778022 Mon Sep 17 00:00:00 2001
From: Marcel Hollerbach <marcel-hollerbach@t-online.de>
Date: Wed, 6 Jul 2016 14:48:08 +0200
Subject: [PATCH] ecore_wl2: delay the destruction of the offer or do it in the
 read

---
 src/lib/ecore_wl2/ecore_wl2_dnd.c     | 24 ++++++++++++++++++++++--
 src/lib/ecore_wl2/ecore_wl2_private.h |  1 +
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/src/lib/ecore_wl2/ecore_wl2_dnd.c b/src/lib/ecore_wl2/ecore_wl2_dnd.c
index e0863da4ae..d093d0b0fe 100644
--- a/src/lib/ecore_wl2/ecore_wl2_dnd.c
+++ b/src/lib/ecore_wl2/ecore_wl2_dnd.c
@@ -246,6 +246,7 @@ _selection_data_read(void *data, Ecore_Fd_Handler *fdh)
              if (source->input->display->wl.data_device_manager_version >=
                  WL_DATA_OFFER_FINISH_SINCE_VERSION)
                wl_data_offer_finish(source->offer);
+               wl_data_offer_destroy(source->offer);
           }
 
         fd = ecore_main_fd_handler_fd_get(source->fdh);
@@ -283,6 +284,8 @@ _selection_data_receive(Ecore_Wl2_Dnd_Source *source, const char *type)
 {
    int p[2];
 
+   source->active_read = EINA_TRUE;
+
    if (pipe2(p, O_CLOEXEC) == -1)
      return;
 
@@ -360,6 +363,23 @@ _ecore_wl2_dnd_enter(Ecore_Wl2_Input *input, struct wl_data_offer *offer, struct
    ecore_event_add(ECORE_WL2_EVENT_DND_ENTER, ev, NULL, NULL);
 }
 
+static void
+_delay_offer_destroy(void *user_data, void *event)
+{
+   Ecore_Wl2_Dnd_Source *source;
+
+   source = user_data;
+
+   if (source && source->offer
+       && !source->active_read)
+     {
+        wl_data_offer_destroy(source->offer);
+        source->offer = NULL;
+     }
+
+   free(event);
+}
+
 void
 _ecore_wl2_dnd_leave(Ecore_Wl2_Input *input)
 {
@@ -377,7 +397,7 @@ _ecore_wl2_dnd_leave(Ecore_Wl2_Input *input)
 
    if (!ev->win) ev->win = ev->source;
 
-   ecore_event_add(ECORE_WL2_EVENT_DND_LEAVE, ev, NULL, NULL);
+   ecore_event_add(ECORE_WL2_EVENT_DND_LEAVE, ev, _delay_offer_destroy, input->drag.source);
 }
 
 void
@@ -430,7 +450,7 @@ _ecore_wl2_dnd_drop(Ecore_Wl2_Input *input)
    ev->x = input->pointer.sx;
    ev->y = input->pointer.sy;
 
-   ecore_event_add(ECORE_WL2_EVENT_DND_DROP, ev, NULL, NULL);
+   ecore_event_add(ECORE_WL2_EVENT_DND_DROP, ev, _delay_offer_destroy, input->drag.source);
 }
 
 void
diff --git a/src/lib/ecore_wl2/ecore_wl2_private.h b/src/lib/ecore_wl2/ecore_wl2_private.h
index 4f5a4411dc..1cfae47466 100644
--- a/src/lib/ecore_wl2/ecore_wl2_private.h
+++ b/src/lib/ecore_wl2/ecore_wl2_private.h
@@ -194,6 +194,7 @@ typedef struct _Ecore_Wl2_Dnd_Source
    uint32_t dnd_action;
    uint32_t source_actions;
    Ecore_Wl2_Selection_Type sel_type;
+   Eina_Bool active_read;
 } Ecore_Wl2_Dnd_Source;