mixer - add icon database for sink icons for mixer popup

this will allow us to have specific icon for different sinks - eg a
screeen for hdmi sinks etc. - need to build a "database" in
sink-icons.txt over time. format is:

glob|icons-name
glob2|icon-name2
...

where glob/glob2 are file globs to match the strng of a sink name and
icon-name/icon-name2 are the naime of the icon in the elm icon theme
for xdg/fdo standard icons or extended icon names we added in the elm
theme. add more lines as needed. first match "wins" so put most
specific matches at the front and least specific at the end.

src/modules/mixer/e_mod_main.c

@@ -64,6 +64,55 @@ struct _Instance
 static Context *mixer_context = NULL;
 static Eina_List *_handlers = NULL;
 
+static char *
+_sink_icon_find(const char *name)
+{
+   const char *dir;
+   char buf[PATH_MAX], *res = NULL, **strs, *glob, *icon;
+   FILE *f;
+   int i;
+   size_t len;
+
+   dir = e_module_dir_get(mixer_context->module);
+   if (!dir) return NULL;
+   snprintf(buf, sizeof(buf), "%s/sink-icons.txt", dir);
+   f = fopen(buf, "r");
+   if (!f) return NULL;
+   while (fgets(buf, sizeof(buf), f))
+     {
+        buf[sizeof(buf) - 1] = 0;
+        len = strlen(buf);
+        if (len > 0)
+          {
+             buf[len - 1] = 0;
+             strs = eina_str_split(buf, "|", 0);
+             if (strs)
+               {
+                  i = 0;
+                  for (glob = strs[i]; glob; i += 2)
+                    {
+                       icon = strs[i + 1];
+                       if (icon)
+                         {
+                            if (e_util_glob_case_match(name, glob))
+                              {
+                                 res = strdup(icon);
+                                 break;
+                              }
+                         }
+                       else break;
+                    }
+                  free(strs[0]);
+                  free(strs);
+               }
+             if (res) break;
+          }
+        else break;
+     }
+   fclose(f);
+   return res;
+}
+
 static void
 _mixer_popup_update(Instance *inst, int mute, int vol)
 {
@@ -196,8 +245,16 @@ _mixer_sinks_changed(void *data EINA_UNUSED, int type EINA_UNUSED, void *event E
              EINA_LIST_FOREACH((Eina_List *)emix_sinks_get(), ll, s)
                {
                   Elm_Object_Item *it;
+                  Evas_Object *ic;
+                  char *icname = NULL;
 
-                  it = elm_list_item_append(inst->list, s->name, NULL, NULL,
+                  if (s->name) icname = _sink_icon_find(s->name);
+                  if (!icname) icname = strdup("audio-volume");
+                  ic = elm_icon_add(e_comp->elm);
+                  evas_object_size_hint_min_set(ic, 20 * e_scale, 20 * e_scale);
+                  elm_icon_standard_set(ic, icname);
+                  free(icname);
+                  it = elm_list_item_append(inst->list, s->name, ic, NULL,
                                             _sink_selected_cb, s);
                   if (backend_sink_default_get() == s)
                     default_it = it;
@@ -214,7 +271,7 @@ _mixer_sinks_changed(void *data EINA_UNUSED, int type EINA_UNUSED, void *event E
 static void
 _popup_new(Instance *inst)
 {
-   Evas_Object *button, *list, *slider, *bx;
+   Evas_Object *button, *list, *slider, *bx, *ic;
    Emix_Sink *s;
    Eina_List *l;
    Elm_Object_Item *default_it = NULL;
@@ -230,8 +287,16 @@ _popup_new(Instance *inst)
    EINA_LIST_FOREACH((Eina_List *)emix_sinks_get(), l, s)
      {
         Elm_Object_Item *it;
+        char *icname = NULL;
 
-        it = elm_list_item_append(inst->list, s->name, NULL, NULL, _sink_selected_cb, s);
+        if (s->name) icname = _sink_icon_find(s->name);
+        if (!icname) icname = strdup("audio-volume");
+        ic = elm_icon_add(e_comp->elm);
+        evas_object_size_hint_min_set(ic, 20 * e_scale, 20 * e_scale);
+        elm_icon_standard_set(ic, icname);
+        free(icname);
+
+        it = elm_list_item_append(inst->list, s->name, ic, NULL, _sink_selected_cb, s);
         if (backend_sink_default_get() == s)
           default_it = it;
      }

src/modules/mixer/meson.build

@@ -55,4 +55,7 @@ if get_option(m) == true
              install_dir        : dir_bin,
              install            : true
             )
+  install_data(['sink-icons.txt'],
+                install_dir: _dir)
+
 endif

src/modules/mixer/sink-icons.txt

@@ -0,0 +1,6 @@
+Built-in Analog*|speaker-box
+Starship/Matisse HD Audio*|speaker-box
+Sound Blaster Play*|headphones
+*HD Audio*|speaker-box
+*HDMI*|video-display
+*|audio-volume