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/*
* Copyright (C) 2007 John Stowers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <gtk/gtk.h>
#include "tracker-keyword-store.h"
#include "tracker-utils.h"
typedef struct _TrackerKeywordStore TrackerKeywordStore;
static void tracker_keyword_store_tree_drag_source_init (GtkTreeDragSourceIface *iface);
static void tracker_keyword_store_finalize (GObject *object);
#if 0
static void tracker_keyword_store_populate_cb (GPtrArray *result, GError *error, gpointer user_data);
#endif
G_DEFINE_TYPE_WITH_CODE (TrackerKeywordStore, tracker_keyword_store, GTK_TYPE_LIST_STORE,
G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_DRAG_SOURCE,
tracker_keyword_store_tree_drag_source_init))
#define parent_class tracker_keyword_store_parent_class
static void
tracker_keyword_store_class_init (TrackerKeywordStoreClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = tracker_keyword_store_finalize;
}
static void
tracker_keyword_store_init (TrackerKeywordStore *store)
{
/* setup the basic class list store properties */
GType types[TRACKER_KEYWORD_STORE_NUM_COLUMNS];
types[TRACKER_KEYWORD_STORE_KEYWORD] = G_TYPE_STRING;
types[TRACKER_KEYWORD_STORE_IMAGE_URI] = G_TYPE_STRING;
gtk_list_store_set_column_types (GTK_LIST_STORE (store),
TRACKER_KEYWORD_STORE_NUM_COLUMNS, types);
//setup private members
store->keywords = g_hash_table_new (g_str_hash, g_str_equal);
store->tracker_client = tracker_connect (TRUE, -1);
/* TODO: Port to SPARQL */
#if 0
//populate the liststore asyncronously
tracker_keywords_get_list_async (store->tracker_client,
SERVICE_FILES,
tracker_keyword_store_populate_cb,
store);
#endif
}
static gboolean
tracker_keyword_store_row_draggable (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
printf ("ROW DRAGGABLE\n");
return TRUE;
}
static gboolean
tracker_keyword_store_drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *data)
{
gchar *keyword;
GtkTreeIter iter;
TrackerKeywordStore *store;
printf ("DRAG DATA GET %s\n",gdk_atom_name (data->target));
store = TRACKER_KEYWORD_STORE (drag_source);
gtk_tree_model_get_iter (GTK_TREE_MODEL(store), &iter, path);
gtk_tree_model_get (GTK_TREE_MODEL(store), &iter, TRACKER_KEYWORD_STORE_KEYWORD, &keyword, -1);
gtk_selection_data_set_text (data, keyword, strlen (keyword));
g_free (keyword);
return TRUE;
}
static gboolean
tracker_keyword_store_drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
printf ("DRAG DATA DELETE\n");
return FALSE;
}
static void
tracker_keyword_store_tree_drag_source_init (GtkTreeDragSourceIface *iface)
{
iface->row_draggable = tracker_keyword_store_row_draggable;
iface->drag_data_get = tracker_keyword_store_drag_data_get;
iface->drag_data_delete = tracker_keyword_store_drag_data_delete;
}
#if 0
static void
tracker_keyword_store_populate_cb (GPtrArray *result, GError *error, gpointer user_data) {
GtkTreeIter iter;
GtkListStore *list_store = GTK_LIST_STORE (user_data);
if (!error && result) {
gchar *name = NULL;
guint i;
for (i = 0; i < result->len; i++) {
name = ((gchar **)result->pdata[i])[0];
if (strlen (name) > 2) {
//FIXME: Modify this function when tracker stores emblem images
gtk_list_store_insert_with_values (list_store, &iter, 0,
TRACKER_KEYWORD_STORE_KEYWORD, name,
-1);
}
}
g_ptr_array_free (result, TRUE);
}
g_clear_error (&error);
}
#endif
static void
tracker_keyword_store_finalize (GObject *object)
{
TrackerKeywordStore *store = TRACKER_KEYWORD_STORE (object);
if (store->keywords) {
g_hash_table_unref (store->keywords);
}
if (store->tracker_client) {
tracker_disconnect (store->tracker_client);
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* tracker_keyword_store_new:
*
* Creates a #GtkListStore with several columns. This store is especially
* useful because it also contais a hashtable which retains a gtk_tree_iter
* indexed by keyword, for O(1) fast lookups of liststore contents.
*
* Return value: a new #TrackerKeywordStore.
*
**/
GtkListStore *
tracker_keyword_store_new (void)
{
return g_object_new (TRACKER_TYPE_KEYWORD_STORE, NULL);
}
/**
* Inserts keyword into the liststore
* returns true if successful
**/
gboolean
tracker_keyword_store_insert ( GtkListStore *store,
const char *keyword,
const char *stock_id
)
{
GtkTreeIter *iter;
TrackerKeywordStore *self;
g_return_val_if_fail (TRACKER_IS_KEYWORD_STORE(store), FALSE);
g_return_val_if_fail (keyword != NULL, FALSE);
self = TRACKER_KEYWORD_STORE (store);
if (g_hash_table_lookup (self->keywords, keyword) == NULL)
{
iter = (GtkTreeIter *)g_new0 (GtkTreeIter, 1);
gtk_list_store_insert_with_values (store,
iter, 0,
TRACKER_KEYWORD_STORE_KEYWORD, keyword,
TRACKER_KEYWORD_STORE_IMAGE_URI, stock_id,
-1);
g_hash_table_insert (self->keywords, g_strdup (keyword), iter);
return TRUE;
}
return FALSE;
}
/**
* O(1) lookup of items by keyword from the store
* Returns the GtkTreeIter corresponding to the item with keyword or
* NULL of it cant be found
**/
GtkTreeIter *
tracker_keyword_store_lookup ( GtkListStore *store,
const char *keyword)
{
TrackerKeywordStore *self;
g_return_val_if_fail (TRACKER_IS_KEYWORD_STORE(store), FALSE);
g_return_val_if_fail (keyword != NULL, FALSE);
self = TRACKER_KEYWORD_STORE (store);
return (GtkTreeIter *)g_hash_table_lookup (self->keywords, keyword);
}
/**
* O(1) removal of items by keyword
**/
gboolean
tracker_keyword_store_remove ( GtkListStore *store,
const char *keyword)
{
GtkTreeIter *iter;
TrackerKeywordStore *self;
gboolean a,b;
iter = tracker_keyword_store_lookup (store, keyword);
self = TRACKER_KEYWORD_STORE (store);
if (iter != NULL) {
a = gtk_list_store_remove (store, iter);
b = g_hash_table_remove (self->keywords, keyword);
return a && b;
}
return FALSE;
}
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