From ff4eb7bb389930e345b0beaadfd97d7a219dc30a Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sun, 18 Dec 2022 12:56:31 +0100
Subject: Do lazy get clipboard version, get as much data as possible at once.
 This seems to be the only reliable method and other programs do this

---
 src/window/window.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/src/window/window.c b/src/window/window.c
index 6927992..df56c94 100644
--- a/src/window/window.c
+++ b/src/window/window.c
@@ -727,6 +727,11 @@ static void mgl_window_on_receive_event(mgl_window *self, XEvent *xev, mgl_event
             return;
         }
         case SelectionClear: {
+            if(self->clipboard_string) {
+                free(self->clipboard_string);
+                self->clipboard_string = NULL;
+                self->clipboard_size = 0;
+            }
             event->type = MGL_EVENT_UNKNOWN;
             return;
         }
@@ -1134,23 +1139,14 @@ bool mgl_window_get_clipboard(mgl_window *self, mgl_clipboard_callback callback,
                 }
             } else if(xev.xselection.target == requested_clipboard_type) {
                 bool got_data = false;
-                long chunk_size = 65536;
-
-                //XDeleteProperty(context->connection, self->window, x11_context->incr_atom);
-                //XFlush(context->connection);
 
                 while(mgl_clock_get_elapsed_time_seconds(&timeout_timer) < timeout_seconds) {
-                    unsigned long offset = 0;
-
-                    /* offset is specified in XGetWindowProperty as a multiple of 32-bit (4 bytes) */
                     /* TODO: Wait for PropertyNotify event instead */
-                    while(XGetWindowProperty(context->connection, xev.xselection.requestor, xev.xselection.property, offset/4, chunk_size, True, PropertyNewValue, &type, &format, &items, &remaining_bytes, &data) == Success) {
+                    while(XGetWindowProperty(context->connection, xev.xselection.requestor, xev.xselection.property, 0, 0x1fffffff, True, PropertyNewValue, &type, &format, &items, &remaining_bytes, &data) == Success) {
                         if(mgl_clock_get_elapsed_time_seconds(&timeout_timer) >= timeout_seconds)
                             break;
 
                         if(type == x11_context->incr_atom) {
-                            if(data)
-                                chunk_size = *(long*)data;
                             XDeleteProperty(context->connection, self->window, x11_context->incr_atom);
                             XFlush(context->connection);
                             XFree(data);
@@ -1180,20 +1176,16 @@ bool mgl_window_get_clipboard(mgl_window *self, mgl_clipboard_callback callback,
                                 }
                             }
                         }
-                        offset += num_items_bytes;
 
                         if(data) {
                             XFree(data);
                             data = NULL;
                         }
 
-                        if(got_data && num_items_bytes == 0/* && format == 8*/) {
+                        if(got_data && items == 0) {
                             success = true;
                             goto done;
                         }
-
-                        if(remaining_bytes == 0)
-                           break;
                     }
                 }
 
@@ -1203,8 +1195,10 @@ bool mgl_window_get_clipboard(mgl_window *self, mgl_clipboard_callback callback,
     }
 
     done:
-    if(requested_clipboard_type)
+    if(requested_clipboard_type) {
         XDeleteProperty(context->connection, self->window, requested_clipboard_type);
+        XFlush(context->connection);
+    }
     return success;
 }
 
-- 
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