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fix(wlr/taskbar): do not bind to unsupported protocol versions

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It's not allowed to bind to a higher version of a wayland protocol than
supported by the client. Binding wlr-foreign-toplevel-manager-v1 v3 to
a generated code for v2 causes errors in libwayland due to a missing
handler for `zwlr_foreign_toplevel_handle_v1.parent` event.
This commit is contained in:
Aleksei Bavshin
2020-10-24 22:56:24 -07:00
parent d5fa20dd33
commit 67d54ef3d5
2 changed files with 6 additions and 1 deletions
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2
src/client.cpp
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@ -32,6 +32,8 @@ void waybar::Client::handleGlobal(void *data, struct wl_registry *registry, uint
const char *interface, uint32_t version) {
auto client = static_cast<Client *>(data);
if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
// limit version to a highest supported by the client protocol file
version = std::min<uint32_t>(version, zwlr_layer_shell_v1_interface.version);
client->layer_shell = static_cast<struct zwlr_layer_shell_v1 *>(
wl_registry_bind(registry, name, &zwlr_layer_shell_v1_interface, version));
} else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0 &&