widget: remove old cache system

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

event.c

@@ -324,15 +324,14 @@ event_handle_destroynotify(void *data __attribute__ ((unused)),
 {
     client_t *c;
     xembed_window_t *emwin;
-    int i;
 
     if((c = client_getbywin(ev->window)))
         client_unmanage(c);
     else if((emwin = xembed_getbywin(globalconf.embedded, ev->event)))
     {
         xembed_window_list_detach(&globalconf.embedded, emwin);
-        for(i = 0; i < globalconf.nscreen; i++)
+        for(int i = 0; i < globalconf.nscreen; i++)
-            widget_invalidate_cache(i, WIDGET_CACHE_EMBEDDED);
+            widget_invalidate_bytype(i, systray_new);
     }
 
     return 0;
@@ -625,7 +624,6 @@ event_handle_unmapnotify(void *data __attribute__ ((unused)),
 {
     client_t *c;
     xembed_window_t *em;
-    int i;
 
     if((c = client_getbywin(ev->window)))
     {
@@ -637,8 +635,8 @@ event_handle_unmapnotify(void *data __attribute__ ((unused)),
     else if((em = xembed_getbywin(globalconf.embedded, ev->window)))
     {
         xembed_window_list_detach(&globalconf.embedded, em);
-        for(i = 0; i < globalconf.nscreen; i++)
+        for(int i = 0; i < globalconf.nscreen; i++)
-            widget_invalidate_cache(i, WIDGET_CACHE_EMBEDDED);
+            widget_invalidate_bytype(i, systray_new);
     }
 
     return 0;

structs.h

@@ -129,8 +129,6 @@ struct widget_t
     void *data;
     /** Button bindings */
     button_array_t buttons;
-    /** Cache flags */
-    int cache_flags;
     /** True if the widget is visible */
     bool isvisible;
 };

systray.c

@@ -173,7 +173,7 @@ systray_request_handle(xcb_window_t embed_win, int phys_screen, xembed_info_t *i
                            MIN(XEMBED_VERSION, em->info.version));
 
     for(i = 0; i < globalconf.nscreen; i++)
-        widget_invalidate_cache(i, WIDGET_CACHE_EMBEDDED);
+        widget_invalidate_bytype(i, systray_new);
 
     return 0;
 }

widget.c

@@ -308,21 +308,19 @@ widget_common_new(widget_t *widget)
     widget->align_supported = AlignLeft | AlignRight;
 }
 
-/** Invalidate widgets which should be refresh upon
+/** Invalidate widgets which should be refresh depending on their types.
- * external modifications. widget_t who watch flags will
- * be set to be refreshed.
  * \param screen Virtual screen number.
- * \param flags Cache flags to invalidate.
+ * \param type Widget type to invalidate.
  */
 void
-widget_invalidate_cache(int screen, int flags)
+widget_invalidate_bytype(int screen, widget_constructor_t *type)
 {
     for(int i = 0; i < globalconf.screens[screen].wiboxes.len; i++)
     {
         wibox_t *wibox = globalconf.screens[screen].wiboxes.tab[i];
 
         for(int j = 0; j < wibox->widgets.len; j++)
-            if(wibox->widgets.tab[j].widget->cache_flags & flags)
+            if(wibox->widgets.tab[j].widget->type == type)
             {
                 wibox->need_update = true;
                 break;

widget.h

@@ -24,8 +24,6 @@
 
 #include "mouse.h"
 
-#define WIDGET_CACHE_EMBEDDED       (1<<3)
-
 struct widget_node_t
 {
     /** The widget */
@@ -38,7 +36,6 @@ void widget_delete(widget_t **);
 
 DO_RCNT(widget_t, widget, widget_delete)
 
-void widget_invalidate_cache(int, int);
 int widget_calculate_offset(int, int, int, int);
 void widget_common_new(widget_t *);
 void widget_render(widget_node_array_t *, draw_context_t *, xcb_gcontext_t, xcb_drawable_t, int, orientation_t, int, int, wibox_t *);
@@ -47,6 +44,7 @@ int luaA_widget_userdata_new(lua_State *, widget_t *);
 void luaA_table2widgets(lua_State *, widget_node_array_t *);
 
 void widget_invalidate_bywidget(widget_t *);
+void widget_invalidate_bytype(int, widget_constructor_t *);
 
 widget_constructor_t textbox_new;
 widget_constructor_t progressbar_new;

widgets/systray.c

@@ -84,7 +84,6 @@ systray_new(alignment_t align)
     w->align = align;
     w->draw = systray_draw;
     w->geometry = systray_geometry;
-    w->cache_flags = WIDGET_CACHE_EMBEDDED;
 
     return w;
 }