From f515c7afa2004647548e5f06c3f94045346f0d92 Mon Sep 17 00:00:00 2001
From: Andy Williams <andy@andywilliams.me>
Date: Mon, 9 Jan 2017 19:40:05 +0000
Subject: [PATCH] cache: Add a theme cache if you want to work 'offline'

Add a skip option as well so you can just load the cache instead
---
 src/bin/extra_main.c | 11 ++++++--
 src/lib/extra.c      | 65 ++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 72 insertions(+), 4 deletions(-)

diff --git a/src/bin/extra_main.c b/src/bin/extra_main.c
index 83e36f6..6f622c2 100644
--- a/src/bin/extra_main.c
+++ b/src/bin/extra_main.c
@@ -132,6 +132,7 @@ _extra_win_ask_for_default(Extra_Theme *theme)
 
    evas_object_show(ui.ask_popup);
 }
+
 static void
 extra_win_show(Extra_Theme *theme)
 {
@@ -411,6 +412,8 @@ static const Ecore_Getopt optdesc = {
   "An Enlightenment theme and plugin browser",
   0,
   {
+    ECORE_GETOPT_STORE_TRUE('s', "skip-sync",
+      "Skip the initial theme sync when loading UI"),
     ECORE_GETOPT_LICENSE('L', "license"),
     ECORE_GETOPT_COPYRIGHT('C', "copyright"),
     ECORE_GETOPT_VERSION('V', "version"),
@@ -424,9 +427,10 @@ elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
 {
    Evas_Object *win;
    int args;
-   Eina_Bool quit_option = EINA_FALSE;
+   Eina_Bool quit_option = EINA_FALSE, skip_option = EINA_FALSE;
 
    Ecore_Getopt_Value values[] = {
+     ECORE_GETOPT_VALUE_BOOL(skip_option),
      ECORE_GETOPT_VALUE_BOOL(quit_option),
      ECORE_GETOPT_VALUE_BOOL(quit_option),
      ECORE_GETOPT_VALUE_BOOL(quit_option),
@@ -459,7 +463,10 @@ elm_main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
    if (!(win = extra_win_setup()))
      goto end;
 
-   extra_win_sync();
+   if (skip_option)
+     _extra_win_sync_done_cb()
+   else
+     extra_win_sync();
 
    elm_run();
 
diff --git a/src/lib/extra.c b/src/lib/extra.c
index 4c19dc8..6dd1369 100644
--- a/src/lib/extra.c
+++ b/src/lib/extra.c
@@ -18,6 +18,8 @@ Eina_List *_theme_list;
 
 #define sec_strdup(v) v ? eina_strbuf_string_steal(v) : NULL
 
+void _extra_theme_cache_load();
+
 static void
 _extra_theme_add(Eina_Strbuf *id, Eina_Strbuf *name,
                  Eina_Strbuf *author, Eina_Strbuf *description,
@@ -51,6 +53,7 @@ extra_init(void)
      }
 
    // Put here your initialization logic of your library
+   _extra_theme_cache_load();
 
    eina_log_timing(_extra_lib_log_dom, EINA_LOG_STATE_STOP, EINA_LOG_STATE_INIT);
 
@@ -126,7 +129,6 @@ _fill_themes(Eina_Strbuf *buf)
 
    const char *string = eina_strbuf_string_get(buf);
    n = jsmn_parse(&parser, string, strlen(string), parts, 201);
-
    if (n == 0)
      {
         printf("No themes received\n");
@@ -141,6 +143,9 @@ _fill_themes(Eina_Strbuf *buf)
 
    c += 1;
 
+   eina_list_free(_theme_list);
+   _theme_list = NULL;
+
    for (int i = 0; i < parts[0].size; ++i)
      {
         Eina_Strbuf *id = NULL, *name = NULL, *version = NULL, *description = NULL, *author = NULL;
@@ -202,16 +207,40 @@ _fill_themes(Eina_Strbuf *buf)
 
    return EINA_TRUE;
 }
+
+static char *
+_theme_cache_path_get()
+{
+   char *path;
+
+   path = malloc(PATH_MAX * sizeof(char));
+   sprintf(path, "%s/.cache/%s/%s.json", eina_environment_home_get(), PACKAGE_NAME, "themes");
+
+   return path;
+}
+
 static Eina_Bool
 _url_complete_cb(void *data, int type EINA_UNUSED, void *event_info)
 {
    Extra_Progress *progress = data;;
    Ecore_Con_Event_Url_Complete *complete = event_info;
    Eina_Strbuf *buf;
+   Eina_Bool parsed;
 
    buf = ecore_con_url_data_get(complete->url_con);
+   parsed = _fill_themes(buf);
 
-   _fill_themes(buf);
+   if (parsed)
+     {
+        FILE *cache;
+        char *cache_path = _theme_cache_path_get();
+        const char *content = eina_strbuf_string_get(buf);
+
+        cache = fopen(cache_path, "w");
+        fprintf(cache, "%s", content);
+        fclose(cache);
+        free(cache_path);
+     }
 
    if (progress->done_cb)
      progress->done_cb();
@@ -355,6 +384,38 @@ extra_theme_download(Extra_Progress *progress, Extra_Theme *theme)
      }
 }
 
+void
+_extra_theme_cache_load()
+{
+   char *cache_path = _theme_cache_path_get();
+
+   if (ecore_file_exists(cache_path))
+     {
+        Eina_File *cache;
+        Eina_File_Line *line;
+        Eina_Iterator *it;
+        Eina_Strbuf *buf;
+        INF("Loading themes from cache");
+
+        cache = eina_file_open(cache_path, EINA_FALSE);
+        it = eina_file_map_lines(cache);
+
+        buf = eina_strbuf_new();
+        EINA_ITERATOR_FOREACH(it, line)
+          {
+             eina_strbuf_append_length(buf, line->start, line->length);
+          }
+
+        _fill_themes(buf);
+        eina_strbuf_free(buf);
+        eina_file_close(cache);
+     }
+   else
+     INF("No theme cache found");
+
+   free(cache_path);
+}
+
 static Eina_Bool
 _enlightenment_restart(void *data EINA_UNUSED)
 {