[client/tasklist] Reactivate icon drawing with client.icon_set()

Signed-off-by: Julien Danjou <julien@danjou.info>

client.c

@@ -1112,6 +1112,18 @@ luaA_client_tostring(lua_State *L)
     return 1;
 }
 
+static int
+luaA_client_icon_set(lua_State *L)
+{
+    client_t **c = luaL_checkudata(L, 1, "client");
+    const char *icon = luaL_optstring(L, 2, NULL);
+
+    p_delete(&(*c)->icon_path);
+    (*c)->icon_path = a_strdup(icon);
+
+    return 0;
+}
+
 const struct luaL_reg awesome_client_methods[] =
 {
     { "get", luaA_client_get },
@@ -1137,6 +1149,7 @@ const struct luaL_reg awesome_client_meta[] =
     { "redraw", luaA_client_redraw },
     { "floating_set", luaA_client_floating_set },
     { "floating_get", luaA_client_floating_get },
+    { "icon_set", luaA_client_icon_set },
     { "__eq", luaA_client_eq },
     { "__tostring", luaA_client_tostring },
     { NULL, NULL }

structs.h

@@ -268,6 +268,8 @@ struct client_t
     position_t titlebar_oldposition;
     /** Layer in the stacking order */
     layer_t layer, oldlayer;
+    /** Path to an icon */
+    char *icon_path;
 };
 
 typedef struct client_node_t client_node_t;

widgets/tasklist.c

@@ -116,9 +116,9 @@ tasklist_draw(widget_node_t *w, statusbar_t *statusbar, int offset, int used)
                 draw_rectangle(statusbar->ctx, area, 1.0, true,
                                statusbar->colors.bg);
 
-                if(0)
+                if(c->icon_path)
                 {
-//                    area = draw_get_image_size(r->icon);
+                    area = draw_get_image_size(c->icon_path);
                     if(area.width > 0 && area.height > 0)
                     {
                         icon_width = ((double) statusbar->height / (double) area.height) * area.width;
@@ -126,8 +126,7 @@ tasklist_draw(widget_node_t *w, statusbar_t *statusbar, int offset, int used)
                                    w->area.x + box_width * i,
                                    w->area.y,
                                    statusbar->height,
-                                   NULL);
-//                                   r->icon);
+                                   c->icon_path);
                     }
                 }