[PATCH weston] input: implement repeat_info event on wl_keyboard

Jonny Lamb jonnylamb at jonnylamb.com
Tue Jul 16 01:33:43 PDT 2013


weston-compositor and the weston-info client have also been updated to
pass on and print these values if present. The rate and delay defaults
originate from X.
---
 clients/weston-info.c    | 106 ++++++++++++++++++++++++++++++++++++++++++++---
 src/compositor-wayland.c |  18 ++++++--
 src/compositor.c         |   5 +++
 src/compositor.h         |   3 ++
 src/input.c              |  12 +++++-
 5 files changed, 133 insertions(+), 11 deletions(-)

diff --git a/clients/weston-info.c b/clients/weston-info.c
index 03b4c40..4515bfe 100644
--- a/clients/weston-info.c
+++ b/clients/weston-info.c
@@ -29,6 +29,8 @@
 
 #include "../shared/os-compatibility.h"
 
+#define MIN(x,y) (((x) < (y)) ? (x) : (y))
+
 typedef void (*print_info_t)(void *info);
 
 struct global_info {
@@ -85,6 +87,9 @@ struct seat_info {
 
 	uint32_t capabilities;
 	char *name;
+
+	int32_t repeat_rate;
+	int32_t repeat_delay;
 };
 
 struct weston_info {
@@ -245,22 +250,105 @@ print_seat_info(void *data)
 		printf(" touch");
 
 	printf("\n");
+
+	if (seat->repeat_rate > 0)
+		printf("\tkeyboard repeat rate: %d\n", seat->repeat_rate);
+	if (seat->repeat_delay > 0)
+		printf("\tkeyboard repeat delay: %d\n", seat->repeat_delay);
+}
+
+static void
+keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
+		       uint32_t format, int fd, uint32_t size)
+{
+}
+
+static void
+keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
+		      uint32_t serial, struct wl_surface *surface,
+		      struct wl_array *keys)
+{
 }
 
 static void
+keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
+		      uint32_t serial, struct wl_surface *surface)
+{
+}
+
+static void
+keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
+		    uint32_t serial, uint32_t time, uint32_t key,
+		    uint32_t state)
+{
+}
+
+static void
+keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
+			  uint32_t serial, uint32_t mods_depressed,
+			  uint32_t mods_latched, uint32_t mods_locked,
+			  uint32_t group)
+{
+}
+
+static void
+keyboard_handle_repeat_info(void *data, struct wl_keyboard *keyboard,
+			    int32_t rate, int32_t delay)
+{
+	struct seat_info *seat = data;
+
+	seat->repeat_rate = rate;
+	seat->repeat_delay = delay;
+}
+
+static const struct wl_keyboard_listener keyboard_listener = {
+	keyboard_handle_keymap,
+	keyboard_handle_enter,
+	keyboard_handle_leave,
+	keyboard_handle_key,
+	keyboard_handle_modifiers,
+	keyboard_handle_repeat_info,
+};
+
+/* This is a struct so we don't have to add a (circular) pointer in
+ * seat_info to weston_info just so roundtrip_needed can be set to
+ * true. */
+struct seat_async_data {
+	struct seat_info *seat;
+	struct weston_info *info;
+};
+
+static void
 seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
 			 enum wl_seat_capability caps)
 {
-	struct seat_info *seat = data;
-	seat->capabilities = caps;
+	struct seat_async_data *async_data = data;
+
+	async_data->seat->capabilities = caps;
+
+	/* we want listen for repeat_info from wl_keyboard, but only
+	 * do so if the seat info is >= 3 and if we actually have a
+	 * keyboard */
+	if (async_data->seat->global.version < 3)
+		return;
+
+	if (caps & WL_SEAT_CAPABILITY_KEYBOARD) {
+		struct wl_keyboard *keyboard;
+
+		keyboard = wl_seat_get_keyboard(async_data->seat->seat);
+		wl_keyboard_add_listener(keyboard, &keyboard_listener,
+					 async_data->seat);
+
+		async_data->info->roundtrip_needed = true;
+	}
 }
 
 static void
 seat_handle_name(void *data, struct wl_seat *wl_seat,
 		 const char *name)
 {
-	struct seat_info *seat = data;
-	seat->name = strdup(name);
+	struct seat_async_data *async_data = data;
+	async_data->seat->name = strdup(name);
 }
 
 static const struct wl_seat_listener seat_listener = {
@@ -272,13 +360,19 @@ static void
 add_seat_info(struct weston_info *info, uint32_t id, uint32_t version)
 {
 	struct seat_info *seat = malloc(sizeof *seat);
+	struct seat_async_data *async_data = malloc(sizeof *async_data);
+
+	async_data->seat = seat;
+	async_data->info = info;
 
 	init_global_info(info, &seat->global, id, "wl_seat", version);
 	seat->global.print = print_seat_info;
 
 	seat->seat = wl_registry_bind(info->registry,
-				      id, &wl_seat_interface, 2);
-	wl_seat_add_listener(seat->seat, &seat_listener, seat);
+				      id, &wl_seat_interface, MIN(version, 3));
+	wl_seat_add_listener(seat->seat, &seat_listener, async_data);
+
+	seat->repeat_rate = seat->repeat_delay = -1;
 
 	info->roundtrip_needed = true;
 }
diff --git a/src/compositor-wayland.c b/src/compositor-wayland.c
index f3a98a8..6e2998a 100644
--- a/src/compositor-wayland.c
+++ b/src/compositor-wayland.c
@@ -584,12 +584,24 @@ input_handle_modifiers(void *data, struct wl_keyboard *keyboard,
 	notify_modifiers(&input->base, serial_out);
 }
 
+static void
+input_handle_repeat_info(void *data, struct wl_keyboard *keyboard,
+			 int32_t rate, int32_t delay)
+{
+	struct wayland_input *input = data;
+	struct wayland_compositor *c = input->compositor;
+
+	c->base.kb_repeat_rate = rate;
+	c->base.kb_repeat_delay = delay;
+}
+
 static const struct wl_keyboard_listener keyboard_listener = {
 	input_handle_keymap,
 	input_handle_keyboard_enter,
 	input_handle_keyboard_leave,
 	input_handle_key,
 	input_handle_modifiers,
+	input_handle_repeat_info,
 };
 
 static void
@@ -625,7 +637,7 @@ static const struct wl_seat_listener seat_listener = {
 };
 
 static void
-display_add_seat(struct wayland_compositor *c, uint32_t id)
+display_add_seat(struct wayland_compositor *c, uint32_t id, uint32_t version)
 {
 	struct wayland_input *input;
 
@@ -638,7 +650,7 @@ display_add_seat(struct wayland_compositor *c, uint32_t id)
 	weston_seat_init(&input->base, &c->base, "default");
 	input->compositor = c;
 	input->seat = wl_registry_bind(c->parent.registry, id,
-				       &wl_seat_interface, 1);
+				       &wl_seat_interface, MIN(version, 3));
 	wl_list_insert(c->input_list.prev, &input->link);
 
 	wl_seat_add_listener(input->seat, &seat_listener, input);
@@ -665,7 +677,7 @@ registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
 			wl_registry_bind(registry, name,
 					 &wl_shell_interface, 1);
 	} else if (strcmp(interface, "wl_seat") == 0) {
-		display_add_seat(c, name);
+		display_add_seat(c, name, version);
 	} else if (strcmp(interface, "wl_shm") == 0) {
 		c->parent.shm =
 			wl_registry_bind(registry, name, &wl_shm_interface, 1);
diff --git a/src/compositor.c b/src/compositor.c
index e9e1166..d916fc3 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -2862,6 +2862,11 @@ weston_compositor_init(struct weston_compositor *ec,
 	if (weston_compositor_xkb_init(ec, &xkb_names) < 0)
 		return -1;
 
+	weston_config_section_get_int(s, "repeat-rate",
+				      &ec->kb_repeat_rate, 60);
+	weston_config_section_get_int(s, "repeat-delay",
+				      &ec->kb_repeat_delay, 200);
+
 	ec->ping_handler = NULL;
 
 	screenshooter_create(ec);
diff --git a/src/compositor.h b/src/compositor.h
index 84f39e2..f4b85ef 100644
--- a/src/compositor.h
+++ b/src/compositor.h
@@ -586,6 +586,9 @@ struct weston_compositor {
 
 	/* Raw keyboard processing (no libxkbcommon initialization or handling) */
 	int use_xkbcommon;
+
+	int32_t kb_repeat_rate;
+	int32_t kb_repeat_delay;
 };
 
 struct weston_buffer {
diff --git a/src/input.c b/src/input.c
index 1887e7f..08a9e81 100644
--- a/src/input.c
+++ b/src/input.c
@@ -1232,6 +1232,14 @@ seat_get_keyboard(struct wl_client *client, struct wl_resource *resource,
 					  seat->keyboard->focus);
 		wl_data_device_set_keyboard_focus(seat);
 	}
+
+	/* if wl_seat's version is at least 3, the wl_keyboard's
+	 * version must be 2, so we support repeat_info */
+	if (wl_resource_get_version(resource) >= 3) {
+		wl_keyboard_send_repeat_info(cr,
+					     seat->compositor->kb_repeat_rate,
+					     seat->compositor->kb_repeat_delay);
+	}
 }
 
 static void
@@ -1264,7 +1272,7 @@ bind_seat(struct wl_client *client, void *data, uint32_t version, uint32_t id)
 	enum wl_seat_capability caps = 0;
 
 	resource = wl_resource_create(client,
-				      &wl_seat_interface, MIN(version, 2), id);
+				      &wl_seat_interface, MIN(version, 3), id);
 	wl_list_insert(&seat->base_resource_list, wl_resource_get_link(resource));
 	wl_resource_set_implementation(resource, &seat_interface, data,
 				       unbind_resource);
@@ -1531,7 +1539,7 @@ weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec,
 	wl_list_init(&seat->drag_resource_list);
 	wl_signal_init(&seat->destroy_signal);
 
-	seat->global = wl_global_create(ec->wl_display, &wl_seat_interface, 2,
+	seat->global = wl_global_create(ec->wl_display, &wl_seat_interface, 3,
 					seat, bind_seat);
 
 	seat->compositor = ec;
-- 
1.8.3.2



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