748 lines
20 KiB
C
748 lines
20 KiB
C
#include <Elementary.h>
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#include "elm_priv.h"
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/**
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* @defgroup Theme
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*
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* Functions to modify the theme in the currently running app.
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*/
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static Elm_Theme theme_default =
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{
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NULL, NULL, NULL, NULL,
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NULL, 1
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};
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static Eina_List *themes = NULL;
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static void
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_elm_theme_clear(Elm_Theme *th)
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{
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const char *p;
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EINA_LIST_FREE(th->themes, p)
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eina_stringshare_del(p);
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EINA_LIST_FREE(th->overlay, p)
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eina_stringshare_del(p);
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EINA_LIST_FREE(th->extension, p)
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eina_stringshare_del(p);
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if (th->cache)
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{
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eina_hash_free(th->cache);
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th->cache = NULL;
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}
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if (th->theme)
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{
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eina_stringshare_del(th->theme);
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th->theme = NULL;
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}
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}
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static const char *
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_elm_theme_find_try(Elm_Theme *th, const char *f, const char *group)
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{
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const char *file;
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if (edje_file_group_exists(f, group))
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{
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file = eina_stringshare_add(f);
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if (file)
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{
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eina_hash_add(th->cache, group, file);
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return file;
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}
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}
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return NULL;
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}
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static const char *
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_elm_theme_theme_element_try(Elm_Theme *th, const char *home, const char *f, const char *group)
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{
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char buf[PATH_MAX];
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const char *file = NULL;
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if ((f[0] == '/') || ((f[0] == '.') && (f[1] == '/')) ||
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((f[0] == '.') && (f[1] == '.') && (f[2] == '/')) ||
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((isalpha(f[0])) && (f[1] == ':')))
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return _elm_theme_find_try(th, f, group);
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else if (((f[0] == '~') && (f[1] == '/')))
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{
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snprintf(buf, sizeof(buf), "%s/%s", home, f + 2);
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return _elm_theme_find_try(th, buf, group);
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}
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snprintf(buf, sizeof(buf), "%s/.elementary/themes/%s.edj", home, f);
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file = _elm_theme_find_try(th, buf, group);
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if (file) return file;
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snprintf(buf, sizeof(buf), "%s/themes/%s.edj", _elm_data_dir, f);
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file = _elm_theme_find_try(th, buf, group);
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return file;
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}
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static const char *
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_elm_theme_group_file_find(Elm_Theme *th, const char *group)
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{
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const Eina_List *l;
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const char *f;
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static const char *home = NULL;
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const char *file = eina_hash_find(th->cache, group);
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if (file) return file;
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if (!home)
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{
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home = getenv("HOME");
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if (!home) home = "";
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}
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EINA_LIST_FOREACH(th->overlay, l, f)
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{
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file = _elm_theme_theme_element_try(th, home, f, group);
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if (file) return file;
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}
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EINA_LIST_FOREACH(th->themes, l, f)
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{
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file = _elm_theme_theme_element_try(th, home, f, group);
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if (file) return file;
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}
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EINA_LIST_FOREACH(th->extension, l, f)
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{
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file = _elm_theme_theme_element_try(th, home, f, group);
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if (file) return file;
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}
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return NULL;
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}
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Eina_Bool
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_elm_theme_object_set(Evas_Object *parent, Evas_Object *o, const char *clas, const char *group, const char *style)
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{
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Elm_Theme *th = NULL;
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if (parent) th = elm_widget_theme_get(parent);
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return _elm_theme_set(th, o, clas, group, style);
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}
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Eina_Bool
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_elm_theme_object_icon_set(Evas_Object *parent, Evas_Object *o, const char *group, const char *style)
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{
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Elm_Theme *th = NULL;
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if (parent) th = elm_widget_theme_get(parent);
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return _elm_theme_icon_set(th, o, group, style);
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}
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Eina_Bool
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_elm_theme_set(Elm_Theme *th, Evas_Object *o, const char *clas, const char *group, const char *style)
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{
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const char *file;
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char buf2[1024];
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Eina_Bool ok;
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if (!th) th = &(theme_default);
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snprintf(buf2, sizeof(buf2), "elm/%s/%s/%s", clas, group, style);
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file = _elm_theme_group_file_find(th, buf2);
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if (file)
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{
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ok = edje_object_file_set(o, file, buf2);
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if (ok) return EINA_TRUE;
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else
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DBG("could not set theme group '%s' from file '%s': %s",
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buf2, file, edje_load_error_str(edje_object_load_error_get(o)));
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}
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snprintf(buf2, sizeof(buf2), "elm/%s/%s/default", clas, group);
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file = _elm_theme_group_file_find(th, buf2);
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if (!file) return EINA_FALSE;
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ok = edje_object_file_set(o, file, buf2);
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if (!ok)
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DBG("could not set theme group '%s' from file '%s': %s",
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buf2, file, edje_load_error_str(edje_object_load_error_get(o)));
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return ok;
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}
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Eina_Bool
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_elm_theme_icon_set(Elm_Theme *th, Evas_Object *o, const char *group, const char *style)
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{
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const char *file;
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char buf2[1024];
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int w, h;
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if (!th) th = &(theme_default);
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snprintf(buf2, sizeof(buf2), "elm/icon/%s/%s", group, style);
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file = _elm_theme_group_file_find(th, buf2);
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if (file)
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{
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_els_smart_icon_file_edje_set(o, file, buf2);
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_els_smart_icon_size_get(o, &w, &h);
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if (w > 0) return EINA_TRUE;
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}
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snprintf(buf2, sizeof(buf2), "elm/icon/%s/default", group);
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file = _elm_theme_group_file_find(th, buf2);
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if (!file) return EINA_FALSE;
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_els_smart_icon_file_edje_set(o, file, buf2);
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_els_smart_icon_size_get(o, &w, &h);
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return (w > 0);
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}
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Eina_Bool
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_elm_theme_parse(Elm_Theme *th, const char *theme)
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{
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Eina_List *names = NULL;
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const char *p, *pe;
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if (!th) th = &(theme_default);
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if (theme)
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{
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p = theme;
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pe = p;
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for (;;)
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{
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if ((*pe == ':') || (*pe == 0))
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{ // p -> pe == 'name:'
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if (pe > p)
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{
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char *n = malloc(pe - p + 1);
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if (n)
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{
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const char *nn;
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strncpy(n, p, pe - p);
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n[pe - p] = 0;
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nn = eina_stringshare_add(n);
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if (nn) names = eina_list_append(names, nn);
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free(n);
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}
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}
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if (*pe == 0) break;
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p = pe + 1;
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pe = p;
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}
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else
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pe++;
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}
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}
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p = eina_list_data_get(eina_list_last(names));
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if ((!p) || ((p) && (strcmp(p, "default"))))
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{
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p = eina_stringshare_add("default");
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if (p) names = eina_list_append(names, p);
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}
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if (th->cache) eina_hash_free(th->cache);
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th->cache = eina_hash_string_superfast_new(EINA_FREE_CB(eina_stringshare_del));
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EINA_LIST_FREE(th->themes, p) eina_stringshare_del(p);
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th->themes = names;
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return EINA_TRUE;
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}
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void
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_elm_theme_shutdown(void)
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{
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_elm_theme_clear(&(theme_default));
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}
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/**
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* Create a new specific theme
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*
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* This creates an empty specific theme that only uses the default theme. A
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* specific theme has its own private set of extensions and overlays too
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* (which are empty by default). Specific themes do not fall back to themes
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* of parent objects. They are not intended for this use. Use styles, overlays
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* and extensions when needed, but avoid specific themes unless there is no
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* other way (example: you want to have a preview of a new theme you are
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* selecting in a "theme selector" window. The preview is inside a scroller
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* and should display what the theme you selected will look like, but not
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* actually apply it yet. The child of the scroller will have a specific
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* theme set to show this preview before the user decides to apply it to all
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* applications).
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*
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* @ingroup Theme
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*/
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EAPI Elm_Theme *
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elm_theme_new(void)
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{
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Elm_Theme *th = calloc(1, sizeof(Elm_Theme));
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if (!th) return NULL;
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th->ref = 1;
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th->themes = eina_list_append(th->themes, eina_stringshare_add("default"));
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themes = eina_list_append(themes, th);
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return th;
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}
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/**
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* Free a specific theme
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*
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* @param th The theme to free
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*
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* This frees a theme created with elm_theme_new().
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*
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* @ingroup Theme
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*/
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EAPI void
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elm_theme_free(Elm_Theme *th)
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{
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if (!th) return;
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th->ref--;
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if (th->ref < 1)
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{
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_elm_theme_clear(th);
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themes = eina_list_remove(themes, th);
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free(th);
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}
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}
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/**
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* Prepends a theme overlay to the list of overlays
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*
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* @param th The theme to add to, or if NULL, the default theme
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* @param item The Edje file path to be used
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*
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* Use this if your application needs to provide some custom overlay theme
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* (An Edje file that replaces some default styles of widgets) where adding
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* new styles, or changing system theme configuration is not possible. Do
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* NOT use this instead of a proper system theme configuration. Use proper
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* configuration files, profiles, environment variables etc. to set a theme
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* so that the theme can be altered by simple confiugration by a user. Using
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* this call to achieve that effect is abusing the API and will create lots
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* of trouble.
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*
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* @ingroup Theme
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*/
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EAPI void
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elm_theme_overlay_add(Elm_Theme *th, const char *item)
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{
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const char *f = eina_stringshare_add(item);
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if (!th) th = &(theme_default);
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if (f) th->overlay = eina_list_prepend(th->overlay, f);
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elm_theme_flush(th);
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}
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/**
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* Delete a theme overlay from the list of overlays
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*
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* @param th The theme to delete from, or if NULL, the default theme
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* @param item The name of the theme overlay
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*
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* See elm_theme_overlay_add().
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*
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* @ingroup Theme
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*/
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EAPI void
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elm_theme_overlay_del(Elm_Theme *th, const char *item)
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{
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const Eina_List *l;
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const char *f, *s;
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if (!th) th = &(theme_default);
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s = eina_stringshare_add(item);
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EINA_LIST_FOREACH(th->overlay, l, f)
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if (f == s)
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{
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eina_stringshare_del(f);
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th->overlay = eina_list_remove_list(th->overlay, (Eina_List *)l);
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break;
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}
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eina_stringshare_del(s);
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elm_theme_flush(th);
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}
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/**
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* Appends a theme extension to the list of extensions.
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*
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* @param th The theme to add to, or if NULL, the default theme
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* @param item The Edje file path to be used
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*
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* This is intended when an application needs more styles of widgets or new
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* widget themes that the default does not provide (or may not provide). The
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* application has "extended" usage by coming up with new custom style names
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* for widgets for specific uses, but as these are not "standard", they are
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* not guaranteed to be provided by a default theme. This means the
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* application is required to provide these extra elements itself in specific
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* Edje files. This call adds one of those Edje files to the theme search
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* path to be search after the default theme. The use of this call is
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* encouraged when default styles do not meet the needs of the application.
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* Use this call instead of elm_theme_overlay_add() for almost all cases.
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*
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* @ingroup Theme
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*/
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EAPI void
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elm_theme_extension_add(Elm_Theme *th, const char *item)
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{
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const char *f = eina_stringshare_add(item);
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if (!th) th = &(theme_default);
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if (f) th->extension = eina_list_append(th->extension, f);
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elm_theme_flush(th);
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}
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/**
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* Deletes a theme extension from the list of extensions.
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*
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* @param th The theme to delete from, or if NULL, the default theme
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* @param item The name of the theme extension
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*
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* See elm_theme_extension_add().
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*
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* @ingroup Theme
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*/
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EAPI void
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elm_theme_extension_del(Elm_Theme *th, const char *item)
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{
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const Eina_List *l;
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const char *f, *s;
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if (!th) th = &(theme_default);
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s = eina_stringshare_add(item);
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EINA_LIST_FOREACH(th->extension, l, f)
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if (f == s)
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{
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eina_stringshare_del(f);
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th->extension = eina_list_remove_list(th->extension, (Eina_List *)l);
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break;
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}
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eina_stringshare_del(s);
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elm_theme_flush(th);
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}
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/**
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* Set the theme search order for the given theme
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*
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* @param th The theme to set the search order, or if NULL, the default theme
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* @param theme Theme search string
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*
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* This sets the search string for the theme in path-notation from first
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* theme to search, to last, delimited by the : character. Example:
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*
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* "shiny:/path/to/file.edj:default"
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*
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* See the ELM_THEME environment variable for more information.
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*
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* @ingroup Theme
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*/
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EAPI void
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elm_theme_set(Elm_Theme *th, const char *theme)
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{
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if (!th) th = &(theme_default);
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_elm_theme_parse(th, theme);
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if (th->theme)
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{
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eina_stringshare_del(th->theme);
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th->theme = NULL;
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}
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elm_theme_flush(th);
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}
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/**
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* Return the theme search order
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*
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* @param th The theme to get the search order, or if NULL, the default theme
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* @return The internal search order path
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*
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* See elm_theme_set() for more information.
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*
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* @ingroup Theme
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*/
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EAPI const char *
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elm_theme_get(Elm_Theme *th)
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{
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if (!th) th = &(theme_default);
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if (!th->theme)
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{
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Eina_List *l;
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const char *f;
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char *tmp;
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int len;
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len = 0;
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EINA_LIST_FOREACH(th->themes, l, f)
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{
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len += strlen(f);
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if (l->next) len += 1;
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}
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tmp = alloca(len + 1);
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tmp[0] = 0;
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EINA_LIST_FOREACH(th->themes, l, f)
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{
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strcat(tmp, f);
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if (l->next) strcat(tmp, ":");
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}
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th->theme = eina_stringshare_add(tmp);
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}
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return th->theme;
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}
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|
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/**
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* Return a list of theme elements to be used in a theme.
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*
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* @param th Theme to get the list of theme elements from.
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* @return The internal list of theme elements
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*
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* This returns the internal list of theme elements (will only be valid as
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* long as the theme is not modified by elm_theme_set() or theme is not
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* freed by elm_theme_free(). This is a list of strings which must not be
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* altered as they are also internal. If @p th is NULL, then the default
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* theme element list is returned.
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*/
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EAPI const Eina_List *
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elm_theme_list_get(Elm_Theme *th)
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{
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if (!th) th = &(theme_default);
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return th->themes;
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}
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|
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/**
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* Return the full patrh for a theme element
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*
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* @param f The theme element name
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* @param in_search_path Pointer to a boolean to indicate if item is in the search path or not
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* @return The full path to the file found.
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*
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* This returns a string you should free with free() on success, NULL on
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* failure. This will search for the given theme element, and if it is a
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* full or relative path element or a simple searchable name. The returned
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* path is the full path to the file, if searched, and the file exists, or it
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* is simply the full path given in the element or a resolved path if
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* relative to home. The @p in_search_path boolean pointed to is set to
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* EINA_TRUE if the file was a searchable file andis in the search path,
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* and EINA_FALSE otherwise.
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*/
|
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EAPI char *
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elm_theme_list_item_path_get(const char *f, Eina_Bool *in_search_path)
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{
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static const char *home = NULL;
|
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char buf[PATH_MAX];
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|
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if (!f)
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{
|
|
if (in_search_path) *in_search_path = EINA_FALSE;
|
|
return NULL;
|
|
}
|
|
|
|
if (!home)
|
|
{
|
|
home = getenv("HOME");
|
|
if (!home) home = "";
|
|
}
|
|
|
|
if ((f[0] == '/') || ((f[0] == '.') && (f[1] == '/')) ||
|
|
((f[0] == '.') && (f[1] == '.') && (f[2] == '/')) ||
|
|
((isalpha(f[0])) && (f[1] == ':')))
|
|
{
|
|
if (in_search_path) *in_search_path = EINA_FALSE;
|
|
return strdup(f);
|
|
}
|
|
else if (((f[0] == '~') && (f[1] == '/')))
|
|
{
|
|
if (in_search_path) *in_search_path = EINA_FALSE;
|
|
snprintf(buf, sizeof(buf), "%s/%s", home, f + 2);
|
|
return strdup(buf);
|
|
}
|
|
snprintf(buf, sizeof(buf), "%s/.elementary/themes/%s.edj", home, f);
|
|
if (ecore_file_exists(buf))
|
|
{
|
|
if (in_search_path) *in_search_path = EINA_TRUE;
|
|
return strdup(buf);
|
|
}
|
|
|
|
snprintf(buf, sizeof(buf), "%s/themes/%s.edj", _elm_data_dir, f);
|
|
if (ecore_file_exists(buf))
|
|
{
|
|
if (in_search_path) *in_search_path = EINA_TRUE;
|
|
return strdup(buf);
|
|
}
|
|
|
|
if (in_search_path) *in_search_path = EINA_FALSE;
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Flush the current theme.
|
|
*
|
|
* @param th Theme to flush
|
|
*
|
|
* This flushes caches that let elementary know where to find theme elements
|
|
* in the given theme. If @p th is NULL, then the default theme is flushed.
|
|
* Call this call if source theme data has changed in such a way as to
|
|
* make any caches Elementary kept invalid.
|
|
*
|
|
* @ingroup Theme
|
|
*/
|
|
EAPI void
|
|
elm_theme_flush(Elm_Theme *th)
|
|
{
|
|
if (!th) th = &(theme_default);
|
|
if (th->cache) eina_hash_free(th->cache);
|
|
th->cache = eina_hash_string_superfast_new(EINA_FREE_CB(eina_stringshare_del));
|
|
_elm_win_rescale();
|
|
}
|
|
|
|
/**
|
|
* This flushes all themes (default and specific ones).
|
|
*
|
|
* This will flush all themes in the current application context, by calling
|
|
* elm_theme_flush() on each of them.
|
|
*
|
|
* @ingroup Theme
|
|
*/
|
|
EAPI void
|
|
elm_theme_full_flush(void)
|
|
{
|
|
Eina_List *l;
|
|
Elm_Theme *th;
|
|
|
|
EINA_LIST_FOREACH(themes, l, th)
|
|
{
|
|
elm_theme_flush(th);
|
|
}
|
|
elm_theme_flush(&(theme_default));
|
|
}
|
|
|
|
/**
|
|
* Set the theme for all elementary using applications on the current display
|
|
*
|
|
* @param theme The name of the theme to use. Format same as the ELM_THEME
|
|
* environment variable.
|
|
*
|
|
* @ingroup Theme
|
|
*/
|
|
EAPI void
|
|
elm_theme_all_set(const char *theme)
|
|
{
|
|
#ifdef HAVE_ELEMENTARY_X
|
|
static Ecore_X_Atom atom = 0;
|
|
|
|
if (!atom) atom = ecore_x_atom_get("ENLIGHTENMENT_THEME");
|
|
ecore_x_window_prop_string_set(ecore_x_window_root_first_get(),
|
|
atom, theme);
|
|
#endif
|
|
elm_theme_set(NULL, theme);
|
|
}
|
|
|
|
/**
|
|
* Return a list of theme elements in the theme search path
|
|
*
|
|
* @return A list of strings that are the theme element names.
|
|
*
|
|
* This lists all available theme files in the standard Elementary search path
|
|
* for theme elements, and returns them in alphabetical order as theme
|
|
* element names in a list of strings. Free this with
|
|
* elm_theme_name_available_list_free() when you are done with the list.
|
|
*/
|
|
EAPI Eina_List *
|
|
elm_theme_name_available_list_new(void)
|
|
{
|
|
Eina_List *list = NULL;
|
|
Eina_List *dir, *l;
|
|
char buf[PATH_MAX], *file, *s, *th;
|
|
static const char *home = NULL;
|
|
|
|
if (!home)
|
|
{
|
|
home = getenv("HOME");
|
|
if (!home) home = "";
|
|
}
|
|
|
|
snprintf(buf, sizeof(buf), "%s/.elementary/themes", home);
|
|
dir = ecore_file_ls(buf);
|
|
EINA_LIST_FREE(dir, file)
|
|
{
|
|
snprintf(buf, sizeof(buf), "%s/.elementary/themes/%s", home, file);
|
|
if ((!ecore_file_is_dir(buf)) && (ecore_file_size(buf) > 0))
|
|
{
|
|
s = strchr(file, '.');
|
|
if ((s) && (!strcasecmp(s, ".edj")))
|
|
{
|
|
th = strdup(file);
|
|
s = strchr(th, '.');
|
|
*s = 0;
|
|
list = eina_list_append(list, th);
|
|
}
|
|
}
|
|
free(file);
|
|
}
|
|
|
|
snprintf(buf, sizeof(buf), "%s/themes", _elm_data_dir);
|
|
dir = ecore_file_ls(buf);
|
|
EINA_LIST_FREE(dir, file)
|
|
{
|
|
snprintf(buf, sizeof(buf), "%s/themes/%s", _elm_data_dir, file);
|
|
if ((!ecore_file_is_dir(buf)) && (ecore_file_size(buf) > 0))
|
|
{
|
|
s = strchr(file, '.');
|
|
if ((s) && (!strcasecmp(s, ".edj")))
|
|
{
|
|
int dup;
|
|
|
|
th = strdup(file);
|
|
s = strchr(th, '.');
|
|
*s = 0;
|
|
dup = 0;
|
|
EINA_LIST_FOREACH(list, l, s)
|
|
{
|
|
if (!strcmp(s, th))
|
|
{
|
|
dup = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (dup) free(th);
|
|
else list = eina_list_append(list, th);
|
|
}
|
|
}
|
|
free(file);
|
|
}
|
|
list = eina_list_sort(list, 0, EINA_COMPARE_CB(strcasecmp));
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* Free the list returned by elm_theme_name_available_list_new()
|
|
*
|
|
* This frees the list of themes returned by
|
|
* elm_theme_name_available_list_new(). Once freed the list should no longer
|
|
* be used. a new list mys be created.
|
|
*/
|
|
EAPI void
|
|
elm_theme_name_available_list_free(Eina_List *list)
|
|
{
|
|
char *s;
|
|
EINA_LIST_FREE(list, s) free(s);
|
|
}
|
|
|
|
/**
|
|
* Set a specific theme to be used for this object and its children
|
|
*
|
|
* @param obj The object to set the theme on
|
|
* @param th The theme to set
|
|
*
|
|
* This sets a specific theme that will be used for the given object and any
|
|
* child objects it has. If @p th is NULL then the theme to be used is
|
|
* cleared and the object will inherit its theme from its parent (which
|
|
* ultimately will use the default theme if no specific themes are set).
|
|
*
|
|
* Use special themes with great care as this will annoy users and make
|
|
* configuration difficult. Avoid any custom themes at all if it can be
|
|
* helped.
|
|
*
|
|
* @ingroup Theme
|
|
*/
|
|
EAPI void
|
|
elm_object_theme_set(Evas_Object *obj, Elm_Theme *th)
|
|
{
|
|
elm_widget_theme_set(obj, th);
|
|
}
|
|
|
|
/**
|
|
* Get the specific theme to be used
|
|
*
|
|
* @param obj The object to get the specific theme from
|
|
* @return The specifc theme set.
|
|
*
|
|
* This will return a specific theme set, or NULL if no specific theme is
|
|
* set on that object. It will not return inherited themes from parents, only
|
|
* the specific theme set for that specific object. See elm_object_theme_set()
|
|
* for more information.
|
|
*
|
|
* @ingroup Theme
|
|
*/
|
|
EAPI Elm_Theme *
|
|
elm_object_theme_get(Evas_Object *obj)
|
|
{
|
|
return elm_widget_theme_get(obj);
|
|
}
|