[tracker/libtracker-miner] TrackerCrawler: Use an accumulator for process-[directory|file].

[Carlos Garnacho <carlosg src gnome org>]

commit 45b1471258ef021da327b7559e763faea73bf5eb
Author: Carlos Garnacho <carlos lanedo com>
Date:   Tue Aug 25 11:42:46 2009 +0200

    TrackerCrawler: Use an accumulator for process-[directory|file].
    
    The meaning of the boolean return value in these signals is now inverted.
    Returning TRUE will also stop further processing, so the default
    implementations for these signals won't be able to clobber the result of
    any added handlers.

 src/libtracker-miner/tracker-crawler.c       |   28 +++++++++++++------------
 src/libtracker-miner/tracker-miner-process.c |    4 +-
 2 files changed, 17 insertions(+), 15 deletions(-)
---
diff --git a/src/libtracker-miner/tracker-crawler.c b/src/libtracker-miner/tracker-crawler.c
index b571b37..592c913 100644
--- a/src/libtracker-miner/tracker-crawler.c
+++ b/src/libtracker-miner/tracker-crawler.c
@@ -107,21 +107,23 @@ tracker_crawler_class_init (TrackerCrawlerClass *klass)
 			      G_TYPE_FROM_CLASS (klass),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (TrackerCrawlerClass, process_directory),
-			      NULL, NULL,
+			      g_signal_accumulator_true_handled,
+			      NULL,
 			      tracker_marshal_BOOLEAN__OBJECT,
 			      G_TYPE_BOOLEAN,
 			      1,
-			      G_TYPE_OBJECT);
+			      G_TYPE_FILE);
 	signals[PROCESS_FILE] =
 		g_signal_new ("process-file",
 			      G_TYPE_FROM_CLASS (klass),
 			      G_SIGNAL_RUN_LAST,
 			      G_STRUCT_OFFSET (TrackerCrawlerClass, process_file),
-			      NULL, NULL,
+			      g_signal_accumulator_true_handled,
+			      NULL,
 			      tracker_marshal_BOOLEAN__OBJECT,
 			      G_TYPE_BOOLEAN,
 			      1,
-			      G_TYPE_OBJECT);
+			      G_TYPE_FILE);
 	signals[FINISHED] =
 		g_signal_new ("finished",
 			      G_TYPE_FROM_CLASS (klass),
@@ -181,7 +183,7 @@ static gboolean
 process_defaults (TrackerCrawler *crawler,
 		  GFile          *file)
 {
-	return TRUE;
+	return FALSE;
 }
 
 TrackerCrawler *
@@ -219,36 +221,36 @@ static gboolean
 process_file (TrackerCrawler *crawler,
 	      GFile	     *file)
 {
-	gboolean should_process = TRUE;
+	gboolean should_ignore = FALSE;
 
-	g_signal_emit (crawler, signals[PROCESS_FILE], 0, file, &should_process);
+	g_signal_emit (crawler, signals[PROCESS_FILE], 0, file, &should_ignore);
 
 	crawler->private->files_found++;
 
-	if (!should_process) {
+	if (should_ignore) {
 		crawler->private->files_ignored++;
 	}
 
-	return should_process;
+	return !should_ignore;
 }
 
 static gboolean
 process_directory (TrackerCrawler *crawler,
 		   GFile	  *file)
 {
-	gboolean should_process = TRUE;
+	gboolean should_ignore = FALSE;
 
-	g_signal_emit (crawler, signals[PROCESS_DIRECTORY], 0, file, &should_process);
+	g_signal_emit (crawler, signals[PROCESS_DIRECTORY], 0, file, &should_ignore);
 
 	crawler->private->directories_found++;
 
-	if (should_process) {
+	if (!should_ignore) {
 		file_enumerate_children (crawler, file);
 	} else {
 		crawler->private->directories_ignored++;
 	}
 
-	return should_process;
+	return !should_ignore;
 }
 
 static gboolean
diff --git a/src/libtracker-miner/tracker-miner-process.c b/src/libtracker-miner/tracker-miner-process.c
index 0bfc60d..ba63bd8 100644
--- a/src/libtracker-miner/tracker-miner-process.c
+++ b/src/libtracker-miner/tracker-miner-process.c
@@ -1019,7 +1019,7 @@ crawler_process_file_cb (TrackerCrawler *crawler,
 
 	g_free (path);
 
-	return should_process;
+	return !should_process;
 }
 
 static gboolean
@@ -1058,7 +1058,7 @@ crawler_process_directory_cb (TrackerCrawler *crawler,
 
 	g_free (path);
 
-	return should_process;
+	return !should_process;
 }
 
 static void