From e67062c8a6d7892c6d8523997cde768f5f0dcd74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89rico=20Rolim?= <erico.erc@gmail.com>
Date: Mon, 20 Jul 2020 22:36:52 -0300
Subject: [PATCH] wdisplays: fix for wlroots update.

---
 .../patches/correct-protocol-version.patch    | 48 +++++++++++++++++++
 srcpkgs/wdisplays/template                    |  2 +-
 2 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 srcpkgs/wdisplays/patches/correct-protocol-version.patch

diff --git a/srcpkgs/wdisplays/patches/correct-protocol-version.patch b/srcpkgs/wdisplays/patches/correct-protocol-version.patch
new file mode 100644
index 00000000000..b0c6cd819e1
--- /dev/null
+++ b/srcpkgs/wdisplays/patches/correct-protocol-version.patch
@@ -0,0 +1,48 @@
+From 657e2966e556c78f121075c69fe1ba8d2b4dcb73 Mon Sep 17 00:00:00 2001
+From: Simon Ser <contact@emersion.fr>
+Date: Wed, 8 Jul 2020 11:57:35 +0200
+Subject: [PATCH] Use correct versions when binding globals
+
+Changes to protocols aren't forward-compatible. It's not possible to use
+version n+1 when a client has been designed to work with version n. For
+instance in wlr-screencopy v5 a new event has been added. Binding to
+version 5 without upgrading the client leads to libwayland errors
+because libwayland doesn't know how to handle the event.
+
+The client needs to maintain its own version requirements.
+
+Closes: https://github.com/cyclopsian/wdisplays/issues/18
+---
+ src/outputs.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/src/outputs.c b/src/outputs.c
+index 9ebf7e5..40410ec 100644
+--- src/outputs.c
++++ src/outputs.c
+@@ -534,20 +534,20 @@ static void registry_handle_global(void *data, struct wl_registry *registry,
+ 
+   if (strcmp(interface, zwlr_output_manager_v1_interface.name) == 0) {
+     state->output_manager = wl_registry_bind(registry, name,
+-        &zwlr_output_manager_v1_interface, version);
++        &zwlr_output_manager_v1_interface, 1);
+     zwlr_output_manager_v1_add_listener(state->output_manager,
+         &output_manager_listener, state);
+   } else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0) {
+     state->xdg_output_manager = wl_registry_bind(registry, name,
+-        &zxdg_output_manager_v1_interface, version);
++        &zxdg_output_manager_v1_interface, 3);
+   } else if(strcmp(interface, zwlr_screencopy_manager_v1_interface.name) == 0) {
+     state->copy_manager = wl_registry_bind(registry, name,
+-        &zwlr_screencopy_manager_v1_interface, version);
++        &zwlr_screencopy_manager_v1_interface, 1);
+   } else if(strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
+     state->layer_shell = wl_registry_bind(registry, name,
+-        &zwlr_layer_shell_v1_interface, version);
++        &zwlr_layer_shell_v1_interface, 1);
+   } else if(strcmp(interface, wl_shm_interface.name) == 0) {
+-    state->shm = wl_registry_bind(registry, name, &wl_shm_interface, version);
++    state->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
+   }
+ }
+ 
diff --git a/srcpkgs/wdisplays/template b/srcpkgs/wdisplays/template
index fce6fc20ea2..6378c2a118c 100644
--- a/srcpkgs/wdisplays/template
+++ b/srcpkgs/wdisplays/template
@@ -1,7 +1,7 @@
 # Template file for 'wdisplays'
 pkgname=wdisplays
 version=1.0
-revision=1
+revision=2
 build_style=meson
 hostmakedepends="pkg-config wayland-devel glib-devel python3-scour"
 makedepends="wayland-devel libepoxy-devel gtk+3-devel"