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/*
* Copyright (C) 2007 Kristian Rietveld <kris@gtk.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
*/
#include <Cocoa/Cocoa.h>
#include <quartz/gdkquartz.h>
#include "gtksearchenginequartz.h"
/* This file is a mixture of an objective-C object and a GObject,
* so be careful to not confuse yourself.
*/
#define QUARTZ_POOL_ALLOC NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]
#define QUARTZ_POOL_RELEASE [pool release]
/* Definition of objective-c object */
@interface ResultReceiver : NSObject
{
int submitted_hits;
GtkSearchEngine *engine;
}
- (void) setEngine:(GtkSearchEngine *)quartz_engine;
- (void) queryUpdate:(id)sender;
- (void) queryProgress:(id)sender;
- (void) queryFinished:(id)sender;
@end
/* Definition of GObject */
struct _GtkSearchEngineQuartzPrivate
{
GtkQuery *query;
ResultReceiver *receiver;
NSMetadataQuery *ns_query;
gboolean query_finished;
};
G_DEFINE_TYPE (GtkSearchEngineQuartz, _gtk_search_engine_quartz, GTK_TYPE_SEARCH_ENGINE);
/* Implementation of the objective-C object */
@implementation ResultReceiver
- (void) setEngine:(GtkSearchEngine *)quartz_engine
{
g_return_if_fail (GTK_IS_SEARCH_ENGINE (quartz_engine));
engine = quartz_engine;
submitted_hits = 0;
}
- (void) submitHits:(NSMetadataQuery *)ns_query
{
int i;
GList *hits = NULL;
/* Here we submit hits "submitted_hits" to "resultCount" */
for (i = submitted_hits; i < [ns_query resultCount]; i++)
{
id result = [ns_query resultAtIndex:i];
char *result_path;
result_path = g_strdup_printf ("file://%s", [[result valueForAttribute:@"kMDItemPath"] cString]);
hits = g_list_prepend (hits, result_path);
}
_gtk_search_engine_hits_added (engine, hits);
g_list_free (hits);
submitted_hits = [ns_query resultCount];
/* The beagle backend stops at 1000 hits, so guess we do so too here.
* It works pretty snappy on my MacBook, if we get rid of this limit
* we are almost definitely going to need some code to submit hits
* in batches.
*/
if (submitted_hits > 1000)
[ns_query stopQuery];
}
- (void) queryUpdate:(id)sender
{
NSMetadataQuery *ns_query = [sender object];
[self submitHits:ns_query];
}
- (void) queryProgress:(id)sender
{
NSMetadataQuery *ns_query = [sender object];
[self submitHits:ns_query];
}
- (void) queryFinished:(id)sender
{
NSMetadataQuery *ns_query = [sender object];
[self submitHits:ns_query];
_gtk_search_engine_finished (engine);
submitted_hits = 0;
}
@end
/* Implementation of the GObject */
static void
gtk_search_engine_quartz_finalize (GObject *object)
{
GtkSearchEngineQuartz *quartz;
QUARTZ_POOL_ALLOC;
quartz = GTK_SEARCH_ENGINE_QUARTZ (object);
[[NSNotificationCenter defaultCenter] removeObserver:quartz->priv->receiver];
[quartz->priv->ns_query release];
[quartz->priv->receiver release];
QUARTZ_POOL_RELEASE;
if (quartz->priv->query)
{
g_object_unref (quartz->priv->query);
quartz->priv->query = NULL;
}
G_OBJECT_CLASS (_gtk_search_engine_quartz_parent_class)->finalize (object);
}
static void
gtk_search_engine_quartz_start (GtkSearchEngine *engine)
{
GtkSearchEngineQuartz *quartz;
QUARTZ_POOL_ALLOC;
quartz = GTK_SEARCH_ENGINE_QUARTZ (engine);
[quartz->priv->ns_query startQuery];
QUARTZ_POOL_RELEASE;
}
static void
gtk_search_engine_quartz_stop (GtkSearchEngine *engine)
{
GtkSearchEngineQuartz *quartz;
QUARTZ_POOL_ALLOC;
quartz = GTK_SEARCH_ENGINE_QUARTZ (engine);
[quartz->priv->ns_query stopQuery];
QUARTZ_POOL_RELEASE;
}
static gboolean
gtk_search_engine_quartz_is_indexed (GtkSearchEngine *engine)
{
return TRUE;
}
static void
gtk_search_engine_quartz_set_query (GtkSearchEngine *engine,
GtkQuery *query)
{
GtkSearchEngineQuartz *quartz;
QUARTZ_POOL_ALLOC;
quartz = GTK_SEARCH_ENGINE_QUARTZ (engine);
if (query)
g_object_ref (query);
if (quartz->priv->query)
g_object_unref (quartz->priv->query);
quartz->priv->query = query;
/* We create a query to look for ".*text.*" in the text contents of
* all indexed files. (Should we also search for text in file and folder
* names?).
*/
[quartz->priv->ns_query setPredicate:
[NSPredicate predicateWithFormat:
[NSString stringWithFormat:@"(kMDItemTextContent LIKE[cd] \"*%s*\")",
_gtk_query_get_text (query)]]];
QUARTZ_POOL_RELEASE;
}
static void
_gtk_search_engine_quartz_class_init (GtkSearchEngineQuartzClass *class)
{
GObjectClass *gobject_class;
GtkSearchEngineClass *engine_class;
gobject_class = G_OBJECT_CLASS (class);
gobject_class->finalize = gtk_search_engine_quartz_finalize;
engine_class = GTK_SEARCH_ENGINE_CLASS (class);
engine_class->set_query = gtk_search_engine_quartz_set_query;
engine_class->start = gtk_search_engine_quartz_start;
engine_class->stop = gtk_search_engine_quartz_stop;
engine_class->is_indexed = gtk_search_engine_quartz_is_indexed;
g_type_class_add_private (gobject_class, sizeof (GtkSearchEngineQuartzPrivate));
}
static void
_gtk_search_engine_quartz_init (GtkSearchEngineQuartz *engine)
{
QUARTZ_POOL_ALLOC;
engine->priv = G_TYPE_INSTANCE_GET_PRIVATE (engine, GTK_TYPE_SEARCH_ENGINE_QUARTZ, GtkSearchEngineQuartzPrivate);
engine->priv->ns_query = [[NSMetadataQuery alloc] init];
engine->priv->receiver = [[ResultReceiver alloc] init];
[engine->priv->receiver setEngine:GTK_SEARCH_ENGINE (engine)];
[[NSNotificationCenter defaultCenter] addObserver:engine->priv->receiver
selector:@selector(queryUpdate:)
name:@"NSMetadataQueryDidUpdateNotification"
object:engine->priv->ns_query];
[[NSNotificationCenter defaultCenter] addObserver:engine->priv->receiver
selector:@selector(queryFinished:)
name:@"NSMetadataQueryDidFinishGatheringNotification"
object:engine->priv->ns_query];
[[NSNotificationCenter defaultCenter] addObserver:engine->priv->receiver
selector:@selector(queryProgress:)
name:@"NSMetadataQueryGatheringProgressNotification"
object:engine->priv->ns_query];
QUARTZ_POOL_RELEASE;
}
GtkSearchEngine *
_gtk_search_engine_quartz_new (void)
{
#ifdef GDK_WINDOWING_QUARTZ
return g_object_new (GTK_TYPE_SEARCH_ENGINE_QUARTZ, NULL);
#else
return NULL;
#endif
}
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