From de4173ee0af28465b43c4eac1f4c64cf43d38fcf Mon Sep 17 00:00:00 2001
From: Rafael Antognolli <rafael.antognolli@intel.com>
Date: Mon, 22 Apr 2013 13:35:54 -0300
Subject: [PATCH] ecore/wayland: Add support for engine animated cursor.

---
 src/lib/ecore_wayland/Ecore_Wayland.h  |  3 +
 src/lib/ecore_wayland/ecore_wl_input.c | 80 ++++++++++++++++++++------
 2 files changed, 65 insertions(+), 18 deletions(-)

diff --git a/src/lib/ecore_wayland/Ecore_Wayland.h b/src/lib/ecore_wayland/Ecore_Wayland.h
index 42d836fcb2..6a5adfb359 100644
--- a/src/lib/ecore_wayland/Ecore_Wayland.h
+++ b/src/lib/ecore_wayland/Ecore_Wayland.h
@@ -146,8 +146,11 @@ struct _Ecore_Wl_Input
    struct wl_touch *touch;
 
    const char *cursor_name;
+   struct wl_cursor *cursor;
    struct wl_surface *cursor_surface;
    struct wl_callback *cursor_frame_cb;
+   Ecore_Timer *cursor_timer;
+   unsigned int cursor_current_index;
 
    struct wl_data_device *data_device;
 
diff --git a/src/lib/ecore_wayland/ecore_wl_input.c b/src/lib/ecore_wayland/ecore_wl_input.c
index 4732055ea3..554b8b1e39 100644
--- a/src/lib/ecore_wayland/ecore_wl_input.c
+++ b/src/lib/ecore_wayland/ecore_wl_input.c
@@ -165,27 +165,78 @@ ecore_wl_input_ungrab(Ecore_Wl_Input *input)
    input->grab_button = 0;
 }
 
+static void
+_pointer_update_stop(Ecore_Wl_Input *input)
+{
+   if (!input->cursor_timer) return;
+
+   ecore_timer_del(input->cursor_timer);
+   input->cursor_timer = NULL;
+}
+
 EAPI void
 ecore_wl_input_pointer_set(Ecore_Wl_Input *input, struct wl_surface *surface, int hot_x, int hot_y)
 {
    LOGFN(__FILE__, __LINE__, __FUNCTION__);
 
-   if (input)
-     wl_pointer_set_cursor(input->pointer, input->pointer_enter_serial, 
-                           surface, hot_x, hot_y);
+   if (!input) return;
+
+   _pointer_update_stop(input);
+   wl_pointer_set_cursor(input->pointer, input->pointer_enter_serial,
+                         surface, hot_x, hot_y);
+}
+
+static Eina_Bool
+_ecore_wl_input_cursor_update(void *data)
+{
+   struct wl_cursor_image *cursor_image;
+   struct wl_buffer *buffer;
+   Ecore_Wl_Input *input = data;
+   unsigned int delay;
+
+   cursor_image = input->cursor->images[input->cursor_current_index];
+   if ((buffer = wl_cursor_image_get_buffer(cursor_image)))
+     {
+        ecore_wl_input_pointer_set(input, input->cursor_surface,
+                                   cursor_image->hotspot_x,
+                                   cursor_image->hotspot_y);
+        wl_surface_attach(input->cursor_surface, buffer, 0, 0);
+        wl_surface_damage(input->cursor_surface, 0, 0,
+                          cursor_image->width, cursor_image->height);
+        wl_surface_commit(input->cursor_surface);
+
+        if (!input->cursor_frame_cb)
+          _ecore_wl_input_cb_pointer_frame(input, NULL, 0);
+     }
+
+   if (input->cursor->image_count <= 1)
+     return ECORE_CALLBACK_CANCEL;
+
+   delay = cursor_image->delay;
+   input->cursor_current_index =
+      (input->cursor_current_index + 1) % input->cursor->image_count;
+
+   if (!input->cursor_timer)
+     input->cursor_timer =
+        ecore_timer_loop_add(delay / 1000.0,
+                             _ecore_wl_input_cursor_update, input);
+   else
+     ecore_timer_interval_set(input->cursor_timer, delay / 1000.0);
+
+   return ECORE_CALLBACK_RENEW;
 }
 
 EAPI void
 ecore_wl_input_cursor_from_name_set(Ecore_Wl_Input *input, const char *cursor_name)
 {
-   struct wl_cursor_image *cursor_image;
-   struct wl_buffer *buffer;
    struct wl_cursor *cursor;
 
    LOGFN(__FILE__, __LINE__, __FUNCTION__);
 
    if (!input) return;
 
+   _pointer_update_stop(input);
+
    eina_stringshare_replace(&input->cursor_name, cursor_name);
 
    /* No cursor. Set to default Left Pointer */
@@ -200,26 +251,17 @@ ecore_wl_input_cursor_from_name_set(Ecore_Wl_Input *input, const char *cursor_na
           return;
      }
 
+   input->cursor = cursor;
+
    if ((!cursor->images) || (!cursor->images[0]))
      {
         ecore_wl_input_pointer_set(input, NULL, 0, 0);
         return;
      }
 
-   cursor_image = cursor->images[0];
-   if ((buffer = wl_cursor_image_get_buffer(cursor_image)))
-     {
-        ecore_wl_input_pointer_set(input, input->cursor_surface, 
-                                   cursor_image->hotspot_x, 
-                                   cursor_image->hotspot_y);
-        wl_surface_attach(input->cursor_surface, buffer, 0, 0);
-        wl_surface_damage(input->cursor_surface, 0, 0, 
-                          cursor_image->width, cursor_image->height);
-        wl_surface_commit(input->cursor_surface);
+   input->cursor_current_index = 0;
 
-        if (!input->cursor_frame_cb)
-          _ecore_wl_input_cb_pointer_frame(input, NULL, 0);
-     }
+   _ecore_wl_input_cursor_update(input);
 }
 
 EAPI void
@@ -289,6 +331,8 @@ _ecore_wl_input_del(Ecore_Wl_Input *input)
 {
    if (!input) return;
 
+   _pointer_update_stop(input);
+
    if (input->cursor_name) eina_stringshare_del(input->cursor_name);
    input->cursor_name = NULL;