[mutter] wayland-keyboard: Add support for the repeat_info event in Wayland v4

[Jasper St. Pierre <jstpierre src gnome org>]

commit 4f55e16fe9d0f1cda6e8c70aec87dbafade4ffbc
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Jul 25 09:20:47 2014 -0400

    wayland-keyboard: Add support for the repeat_info event in Wayland v4

 src/wayland/meta-wayland-keyboard.c |   64 +++++++++++++++++++++++++++++++++++
 src/wayland/meta-wayland-keyboard.h |    2 +
 src/wayland/meta-wayland-versions.h |    4 +-
 3 files changed, 68 insertions(+), 2 deletions(-)
---
diff --git a/src/wayland/meta-wayland-keyboard.c b/src/wayland/meta-wayland-keyboard.c
index 53d9809..20f77c9 100644
--- a/src/wayland/meta-wayland-keyboard.c
+++ b/src/wayland/meta-wayland-keyboard.c
@@ -290,6 +290,62 @@ meta_wayland_keyboard_update_xkb_state (MetaWaylandKeyboard *keyboard)
                     xkb_state_serialize_layout (xkb_info->state, XKB_STATE_LAYOUT_EFFECTIVE));
 }
 
+static void
+notify_key_repeat_for_resource (MetaWaylandKeyboard *keyboard,
+                                struct wl_resource  *keyboard_resource)
+{
+  if (wl_resource_get_version (keyboard_resource) >= WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION)
+    {
+      gboolean repeat;
+      unsigned int delay, rate;
+
+      repeat = g_settings_get_boolean (keyboard->settings, "repeat");
+
+      if (repeat)
+        {
+          unsigned int interval;
+          interval = g_settings_get_uint (keyboard->settings, "repeat-interval");
+          /* Our setting is in the milliseconds between keys. "rate" is the number
+           * of keys per second. */
+          rate = (1000 / interval);
+          delay = g_settings_get_uint (keyboard->settings, "delay");
+        }
+      else
+        {
+          rate = 0;
+          delay = 0;
+        }
+
+      wl_keyboard_send_repeat_info (keyboard_resource, rate, delay);
+    }
+}
+
+static void
+notify_key_repeat (MetaWaylandKeyboard *keyboard)
+{
+  struct wl_resource *keyboard_resource;
+
+  wl_resource_for_each (keyboard_resource, &keyboard->resource_list)
+    {
+      notify_key_repeat_for_resource (keyboard, keyboard_resource);
+    }
+
+  wl_resource_for_each (keyboard_resource, &keyboard->focus_resource_list)
+    {
+      notify_key_repeat_for_resource (keyboard, keyboard_resource);
+    }
+}
+
+static void
+settings_changed (GSettings           *settings,
+                  const char          *key,
+                  gpointer             data)
+{
+  MetaWaylandKeyboard *keyboard = data;
+
+  notify_key_repeat (keyboard);
+}
+
 void
 meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
                             struct wl_display   *display)
@@ -315,6 +371,10 @@ meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
                                          "evdev",
                                          "pc105",
                                          "us", "", "", 0);
+
+  keyboard->settings = g_settings_new ("org.gnome.settings-daemon.peripherals.keyboard");
+  g_signal_connect (keyboard->settings, "changed",
+                    G_CALLBACK (settings_changed), keyboard);
 }
 
 static void
@@ -338,6 +398,8 @@ meta_wayland_keyboard_release (MetaWaylandKeyboard *keyboard)
 
   /* XXX: What about keyboard->resource_list? */
   wl_array_release (&keyboard->keys);
+
+  g_object_unref (keyboard->settings);
 }
 
 static void
@@ -589,6 +651,8 @@ meta_wayland_keyboard_create_new_resource (MetaWaylandKeyboard *keyboard,
                            keyboard->xkb_info.keymap_fd,
                            keyboard->xkb_info.keymap_size);
 
+  notify_key_repeat_for_resource (keyboard, cr);
+
   if (keyboard->focus_surface && wl_resource_get_client (keyboard->focus_surface->resource) == client)
     meta_wayland_keyboard_set_focus (keyboard, keyboard->focus_surface);
 }
diff --git a/src/wayland/meta-wayland-keyboard.h b/src/wayland/meta-wayland-keyboard.h
index ded287d..77bfff1 100644
--- a/src/wayland/meta-wayland-keyboard.h
+++ b/src/wayland/meta-wayland-keyboard.h
@@ -73,6 +73,8 @@ struct _MetaWaylandKeyboard
 
   struct xkb_context *xkb_context;
   MetaWaylandXkbInfo xkb_info;
+
+  GSettings *settings;
 };
 
 void meta_wayland_keyboard_init (MetaWaylandKeyboard *keyboard,
diff --git a/src/wayland/meta-wayland-versions.h b/src/wayland/meta-wayland-versions.h
index d1301af..2152b15 100644
--- a/src/wayland/meta-wayland-versions.h
+++ b/src/wayland/meta-wayland-versions.h
@@ -39,7 +39,7 @@
 #define META_WL_DATA_DEVICE_MANAGER_VERSION 1
 #define META_XDG_SHELL_VERSION              1
 #define META_WL_SHELL_VERSION               1
-#define META_WL_SEAT_VERSION                3
+#define META_WL_SEAT_VERSION                4
 #define META_WL_OUTPUT_VERSION              2
 #define META_XSERVER_VERSION                1
 #define META_GTK_SHELL_VERSION              1
@@ -51,7 +51,7 @@
 #define META_WL_DATA_DEVICE_VERSION         1 /* from wl_data_device_manager */
 #define META_WL_SURFACE_VERSION             3 /* from wl_compositor */
 #define META_WL_POINTER_VERSION             3 /* from wl_seat */
-#define META_WL_KEYBOARD_VERSION            3 /* from wl_seat */
+#define META_WL_KEYBOARD_VERSION            4 /* from wl_seat */
 #define META_WL_TOUCH_VERSION               3 /* from wl_seat */
 #define META_WL_REGION_VERSION              1 /* from wl_compositor */
 #define META_XDG_SURFACE_VERSION            1 /* from xdg_shell */