site changing works

[grits] / src / data.c

diff --git a/src/data.c b/src/data.c
new file mode 100644 (file)
index 0000000..c36556d
--- /dev/null
+++ b/src/data.c
@@ -0,0 +1,60 @@
+#include <config.h>
+#include <glib.h>
+#include <gio/gio.h>
+
+#include "data.h"
+
+typedef struct {
+       AWeatherCacheDoneCallback callback;
+       gchar *src;
+       gchar *dst;
+       gchar *user_data;
+} cache_file_end_t;
+
+static void cache_file_cb(GObject *source_object, GAsyncResult *res, gpointer _info)
+{
+       cache_file_end_t *info = _info;
+       GError *error = NULL;
+       g_file_copy_finish(G_FILE(source_object), res, &error);
+       if (error) {
+               g_message("error copying file ([%s]->[%s]): %s",
+                       info->src, info->dst, error->message);
+       } else {
+               info->callback(info->dst, info->user_data);
+       }
+       g_free(info->src);
+       g_free(info->dst);
+       g_free(info);
+}
+
+/**
+ * Cache a image from Ridge to the local disk
+ * \param  path  Path to the Ridge file, starting after /ridge/
+ * \return The local path to the cached image
+ */
+void cache_file(char *base, char *path, AWeatherCacheDoneCallback callback, gpointer user_data)
+{
+       gchar *url   = g_strconcat(base, path, NULL);
+       gchar *local = g_build_filename(g_get_user_cache_dir(), PACKAGE, path, NULL);
+       if (g_file_test(local, G_FILE_TEST_EXISTS)) {
+               callback(local, user_data);
+       } else {
+               if (!g_file_test(g_path_get_dirname(local), G_FILE_TEST_IS_DIR))
+                       g_mkdir_with_parents(g_path_get_dirname(local), 0755);
+               cache_file_end_t *info = g_malloc0(sizeof(cache_file_end_t));
+               info->callback  = callback;
+               info->src       = url;
+               info->dst       = local;
+               info->user_data = user_data;
+               GFile *src = g_file_new_for_uri(url);
+               GFile *dst = g_file_new_for_path(local);
+               g_file_copy_async(src, dst,
+                       G_FILE_COPY_OVERWRITE, // GFileCopyFlags flags,
+                       0,                     // int io_priority,
+                       NULL,                  // GCancellable *cancellable,
+                       NULL,                  // GFileProgressCallback progress_callback,
+                       NULL,                  // gpointer progress_callback_data,
+                       cache_file_cb,         // GAsyncReadyCallback callback,
+                       info);                 // gpointer user_data
+       }
+}