X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=shell%2Fev-metadata-manager.c;h=a07d2d66d74cd2579f0a89e9c47d2da36665f9c1;hb=e2796d0d1a833e63c9495193c9241bd718f68082;hp=712f124f0b0da0e1603bed37bdf1412b0445bd07;hpb=6a456fd7b243b73177b1f9ddf9eddc315295b11a;p=evince.git diff --git a/shell/ev-metadata-manager.c b/shell/ev-metadata-manager.c index 712f124f..a07d2d66 100644 --- a/shell/ev-metadata-manager.c +++ b/shell/ev-metadata-manager.c @@ -37,13 +37,14 @@ #include #include "ev-metadata-manager.h" +#include "ev-application.h" #include "ev-file-helpers.h" #define METADATA_FILE "ev-metadata.xml" #define MAX_ITEMS 50 -typedef struct _GeditMetadataManager GeditMetadataManager; +typedef struct _EvMetadataManager EvMetadataManager; typedef struct _Item Item; @@ -54,14 +55,11 @@ struct _Item GHashTable *values; }; -struct _GeditMetadataManager +struct _EvMetadataManager { gboolean values_loaded; /* It is true if the file has been read */ - gboolean modified; /* It is true if the file - has top be written */ - guint timeout_id; GHashTable *items; @@ -70,48 +68,65 @@ struct _GeditMetadataManager static gboolean ev_metadata_manager_save (gpointer data); -static GeditMetadataManager *ev_metadata_manager = NULL; +static EvMetadataManager *ev_metadata_manager = NULL; +/** + * item_free: + * @data: a pointer to a #Item data + * + * It does free the values on the #GHashTable where data points. + */ static void item_free (gpointer data) { - Item *item; - - g_return_if_fail (data != NULL); - - item = (Item *)data; + Item *item = (Item *) data; if (item->values != NULL) g_hash_table_destroy (item->values); - g_free (item); + g_slice_free (Item, item); } -static gboolean -ev_metadata_manager_init (void) +/** + * ev_metadata_arm_timeout + * + * Setup a timeout for saving the metadata to disk. + */ +static void +ev_metadata_arm_timeout(void) { - if (ev_metadata_manager != NULL) - return TRUE; + if (ev_metadata_manager->timeout_id) + return; - ev_metadata_manager = g_new0 (GeditMetadataManager, 1); + ev_metadata_manager->timeout_id = + g_timeout_add_seconds_full (G_PRIORITY_DEFAULT_IDLE, + 2, + (GSourceFunc)ev_metadata_manager_save, + NULL, + NULL); +} + +/** + * ev_metadata_manager_init: + * + * Creates an EvMetadataManager with default values. + * + * values_loaded -> %FALSE. + * timeout_id -> the id of the event source. + * items -> a new full empty #GHashTable. + */ +void +ev_metadata_manager_init (void) +{ + ev_metadata_manager = g_slice_new0 (EvMetadataManager); ev_metadata_manager->values_loaded = FALSE; - ev_metadata_manager->modified = FALSE; ev_metadata_manager->items = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, item_free); - - ev_metadata_manager->timeout_id = - g_timeout_add_full (G_PRIORITY_DEFAULT_IDLE, - 2000, /* 2 sec */ - (GSourceFunc)ev_metadata_manager_save, - NULL, - NULL); - - return TRUE; } /* This function must be called before exiting ev */ @@ -121,17 +136,28 @@ ev_metadata_manager_shutdown (void) if (ev_metadata_manager == NULL) return; - g_source_remove (ev_metadata_manager->timeout_id); - - ev_metadata_manager_save (NULL); + if (ev_metadata_manager->timeout_id) { + g_source_remove (ev_metadata_manager->timeout_id); + ev_metadata_manager->timeout_id = 0; + ev_metadata_manager_save (NULL); + } if (ev_metadata_manager->items != NULL) g_hash_table_destroy (ev_metadata_manager->items); - g_free (ev_metadata_manager); + g_slice_free (EvMetadataManager, ev_metadata_manager); ev_metadata_manager = NULL; } +static void +value_free (gpointer data) +{ + GValue *value = (GValue *)data; + + g_value_unset (value); + g_slice_free (GValue, value); +} + static GValue * parse_value (xmlChar *value, xmlChar *type) { @@ -139,7 +165,7 @@ parse_value (xmlChar *value, xmlChar *type) GValue *ret; ret_type = g_type_from_name ((char *)type); - ret = g_new0 (GValue, 1); + ret = g_slice_new0 (GValue); g_value_init (ret, ret_type); switch (ret_type) { @@ -147,13 +173,13 @@ parse_value (xmlChar *value, xmlChar *type) g_value_set_string (ret, (char *)value); break; case G_TYPE_INT: - g_value_set_int (ret, atoi ((char *)value)); + g_value_set_int (ret, g_ascii_strtoull ((char *)value, NULL, 0)); break; case G_TYPE_DOUBLE: - g_value_set_double (ret, atof ((char *)value)); + g_value_set_double (ret, g_ascii_strtod ((char *)value, NULL)); break; case G_TYPE_BOOLEAN: - g_value_set_boolean (ret, atoi ((char *)value)); + g_value_set_boolean (ret, g_ascii_strtoull ((char *)value, NULL, 0)); break; } @@ -182,14 +208,14 @@ parseItem (xmlDocPtr doc, xmlNodePtr cur) return; } - item = g_new0 (Item, 1); + item = g_slice_new0 (Item); - item->atime = atol ((char *)atime); + item->atime = g_ascii_strtoull((char*)atime, NULL, 0); item->values = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, - g_free); + value_free); cur = cur->xmlChildrenNode; @@ -200,7 +226,7 @@ parseItem (xmlDocPtr doc, xmlNodePtr cur) xmlChar *key; xmlChar *xml_value; xmlChar *type; - GValue *value; + GValue *value; key = xmlGetProp (cur, (const xmlChar *)"key"); xml_value = xmlGetProp (cur, (const xmlChar *)"value"); @@ -214,6 +240,8 @@ parseItem (xmlDocPtr doc, xmlNodePtr cur) if (key != NULL) xmlFree (key); + if (type != NULL) + xmlFree (type); if (xml_value != NULL) xmlFree (xml_value); } @@ -244,7 +272,7 @@ load_values () xmlKeepBlanksDefault (0); /* FIXME: file locking - Paolo */ - file_name = g_build_filename (ev_dot_dir (), METADATA_FILE, NULL); + file_name = g_build_filename (ev_application_get_dot_dir (EV_APP), METADATA_FILE, NULL); if (!g_file_test (file_name, G_FILE_TEST_EXISTS)) { g_free (file_name); @@ -262,7 +290,7 @@ load_values () cur = xmlDocGetRootElement (doc); if (cur == NULL) { - g_message ("The metadata file '%s' is empty", METADATA_FILE); + g_message ("The metadata file “%s” is empty", METADATA_FILE); xmlFreeDoc (doc); return FALSE; @@ -270,7 +298,7 @@ load_values () if (xmlStrcmp (cur->name, (const xmlChar *) "metadata")) { - g_message ("File '%s' is of the wrong type", METADATA_FILE); + g_message ("File “%s” is of the wrong type", METADATA_FILE); xmlFreeDoc (doc); return FALSE; @@ -291,19 +319,112 @@ load_values () return TRUE; } +#define LAST_URI "last-used-value" + +static gboolean +ev_metadata_manager_get_last (const gchar *key, + GValue *value, + gboolean ignore) +{ + Item *item; + GValue *ret; + + g_assert (ev_metadata_manager->values_loaded); + + if (ignore) + return FALSE; + + item = (Item *)g_hash_table_lookup (ev_metadata_manager->items, + LAST_URI); + + if (item == NULL) + return FALSE; + + item->atime = time (NULL); + + if (item->values == NULL) + return FALSE; + + ret = (GValue *)g_hash_table_lookup (item->values, key); + + if (ret != NULL) { + g_value_init (value, G_VALUE_TYPE (ret)); + g_value_copy (ret, value); + return TRUE; + } + + return FALSE; +} + +static void +ev_metadata_manager_set_last (const gchar *key, + const GValue *value) +{ + Item *item; + + g_assert (ev_metadata_manager->values_loaded); + + item = (Item *)g_hash_table_lookup (ev_metadata_manager->items, + LAST_URI); + + if (item == NULL) + { + item = g_slice_new0 (Item); + + g_hash_table_insert (ev_metadata_manager->items, + g_strdup (LAST_URI), + item); + } + + if (item->values == NULL) + item->values = g_hash_table_new_full (g_str_hash, + g_str_equal, + g_free, + value_free); + if (value != NULL) { + GValue *new; + + new = g_slice_new0 (GValue); + g_value_init (new, G_VALUE_TYPE (value)); + g_value_copy (value, new); + + g_hash_table_insert (item->values, + g_strdup (key), + new); + } else { + g_hash_table_remove (item->values, + key); + } + + item->atime = time (NULL); + ev_metadata_arm_timeout (); + return; +} + +/** + * ev_metadata_manager_get: + * @uri: Uri to set data for, if @NULL, we return default value + * @key: Key to set uri + * @value: GValue struct filled up with value + * @ignore_last: if @TRUE, default value is ignored + * + * Retrieve value for uri in metadata database + * + * Returns: @TRUE if value was taken. + **/ gboolean ev_metadata_manager_get (const gchar *uri, const gchar *key, - GValue *value) + GValue *value, + gboolean ignore_last) { Item *item; GValue *ret; - g_return_val_if_fail (uri != NULL, FALSE); g_return_val_if_fail (key != NULL, FALSE); if (ev_metadata_manager == NULL) - ev_metadata_manager_init (); + return FALSE; if (!ev_metadata_manager->values_loaded) { @@ -312,41 +433,42 @@ ev_metadata_manager_get (const gchar *uri, res = load_values (); if (!res) - return FALSE; + return ev_metadata_manager_get_last (key, value, ignore_last); } + if (uri == NULL) + return ev_metadata_manager_get_last (key, value, ignore_last); + item = (Item *)g_hash_table_lookup (ev_metadata_manager->items, uri); if (item == NULL) - return FALSE; + return ev_metadata_manager_get_last (key, value, ignore_last); item->atime = time (NULL); if (item->values == NULL) - return FALSE; + return ev_metadata_manager_get_last (key, value, ignore_last); ret = (GValue *)g_hash_table_lookup (item->values, key); - if (ret == NULL) { - return FALSE; - } else { + if (ret != NULL) { g_value_init (value, G_VALUE_TYPE (ret)); g_value_copy (ret, value); - return TRUE; } -} - -static void -value_free (gpointer data) -{ - GValue *value = (GValue *)data; - g_value_unset (value); - g_free (value); + return ev_metadata_manager_get_last (key, value, ignore_last); } +/** + * ev_metadata_manager_set: + * @uri: Uri to set data for, if @NULL, we set default value + * @key: Key to set uri + * @value: GValue struct containing value + * + * Set value for key in metadata database + **/ void ev_metadata_manager_set (const gchar *uri, const gchar *key, @@ -354,11 +476,10 @@ ev_metadata_manager_set (const gchar *uri, { Item *item; - g_return_if_fail (uri != NULL); g_return_if_fail (key != NULL); if (ev_metadata_manager == NULL) - ev_metadata_manager_init (); + return; if (!ev_metadata_manager->values_loaded) { @@ -370,12 +491,18 @@ ev_metadata_manager_set (const gchar *uri, return; } + if (uri == NULL) + { + ev_metadata_manager_set_last (key, value); + return; + } + item = (Item *)g_hash_table_lookup (ev_metadata_manager->items, uri); if (item == NULL) { - item = g_new0 (Item, 1); + item = g_slice_new0 (Item); g_hash_table_insert (ev_metadata_manager->items, g_strdup (uri), @@ -390,13 +517,14 @@ ev_metadata_manager_set (const gchar *uri, if (value != NULL) { GValue *new; - new = g_new0 (GValue, 1); + new = g_slice_new0 (GValue); g_value_init (new, G_VALUE_TYPE (value)); g_value_copy (value, new); g_hash_table_insert (item->values, g_strdup (key), new); + ev_metadata_manager_set_last (key, value); } else { g_hash_table_remove (item->values, key); @@ -404,7 +532,7 @@ ev_metadata_manager_set (const gchar *uri, item->atime = time (NULL); - ev_metadata_manager->modified = TRUE; + ev_metadata_arm_timeout (); } static void @@ -427,14 +555,18 @@ save_values (const gchar *key, GValue *value, xmlNodePtr parent) switch (G_VALUE_TYPE (value)) { case G_TYPE_STRING: - string_value = g_strdup (g_value_get_string (value)); + string_value = g_value_dup_string (value); break; case G_TYPE_INT: string_value = g_strdup_printf ("%d", g_value_get_int (value)); break; case G_TYPE_DOUBLE: - string_value = g_strdup_printf ("%f", g_value_get_double (value)); - break; + { + gchar buf[G_ASCII_DTOSTR_BUF_SIZE]; + g_ascii_dtostr (buf, G_ASCII_DTOSTR_BUF_SIZE, g_value_get_double (value)); + string_value = g_strdup (buf); + } + break; case G_TYPE_BOOLEAN: string_value = g_strdup_printf ("%d", g_value_get_boolean (value)); break; @@ -464,10 +596,8 @@ save_item (const gchar *key, const gpointer *data, xmlNodePtr parent) xmlSetProp (xml_node, (const xmlChar *)"uri", (const xmlChar *)key); - /* FIXME: is the cast right? - Paolo */ - atime = g_strdup_printf ("%d", (int)item->atime); - xmlSetProp (xml_node, (const xmlChar *)"atime", (const xmlChar *)atime); - + atime = g_strdup_printf ("%ld", item->atime); + xmlSetProp (xml_node, (const xmlChar *)"atime", (const xmlChar *)atime); g_free (atime); g_hash_table_foreach (item->values, @@ -523,8 +653,7 @@ ev_metadata_manager_save (gpointer data) xmlNodePtr root; gchar *file_name; - if (!ev_metadata_manager->modified) - return TRUE; + ev_metadata_manager->timeout_id = 0; resize_items (); @@ -542,15 +671,13 @@ ev_metadata_manager_save (gpointer data) (GHFunc)save_item, root); /* FIXME: lock file - Paolo */ - file_name = g_build_filename (ev_dot_dir (), METADATA_FILE, NULL); + file_name = g_build_filename (ev_application_get_dot_dir (EV_APP), METADATA_FILE, NULL); xmlSaveFormatFile (file_name, doc, 1); g_free (file_name); xmlFreeDoc (doc); - ev_metadata_manager->modified = FALSE; - - return TRUE; + return FALSE; } void @@ -585,7 +712,7 @@ ev_metadata_manager_set_string (const gchar *uri, const gchar *key, const gchar GValue val = { 0, }; g_value_init (&val, G_TYPE_STRING); - g_value_set_string (&val, value); + g_value_set_static_string (&val, value); ev_metadata_manager_set (uri, key, &val);