[epiphany] Make text search faster by delaying the actual search

[Gustavo Noronha Silva <gns src gnome org>]

commit b573119b1338722ba9f6016b72064f6fcf681dfc
Author: Gustavo Noronha Silva <gns gnome org>
Date:   Fri Dec 25 23:58:59 2009 -0200

    Make text search faster by delaying the actual search
    
    This makes sure that we do not search for 1-2 characters when the user
    starts typing, making the search for longer words faster.
    
    Bug #598322

 src/ephy-find-toolbar.c |   35 +++++++++++++++++++++++++++++++----
 1 files changed, 31 insertions(+), 4 deletions(-)
---
diff --git a/src/ephy-find-toolbar.c b/src/ephy-find-toolbar.c
index 71f2552..196957d 100644
--- a/src/ephy-find-toolbar.c
+++ b/src/ephy-find-toolbar.c
@@ -48,6 +48,7 @@ struct _EphyFindToolbarPrivate
 	gulong set_focus_handler;
 	guint source_id;
 	guint find_again_source_id;
+	guint find_source_id;
 	char *find_string;
 	guint preedit_changed : 1;
 	guint prevent_activate : 1;
@@ -268,20 +269,40 @@ real_find (EphyFindToolbarPrivate *priv,
         return EPHY_FIND_FOUND;
 }
 
+static gboolean
+do_search (EphyFindToolbar *toolbar)
+{
+	EphyFindToolbarPrivate *priv = toolbar->priv;
+	EphyEmbedFindResult result;
+
+	priv->find_source_id = 0;
+
+	ephy_find_toolbar_mark_matches (toolbar);
+
+	result = real_find (priv, TRUE);
+	set_status (toolbar, result);
+
+	return FALSE;
+}
+
 static void
 entry_changed_cb (GtkEntry *entry,
 		  EphyFindToolbar *toolbar)
 {
 	EphyFindToolbarPrivate *priv = toolbar->priv;
-	EphyEmbedFindResult result;
 
 	g_free (priv->find_string);
 	priv->find_string = g_strdup (gtk_entry_get_text (GTK_ENTRY (priv->entry)));
 
-	ephy_find_toolbar_mark_matches (toolbar);
+	if (priv->find_source_id != 0) {
+		g_source_remove (priv->find_source_id);
+		priv->find_source_id = 0;
+	}
 
-	result = real_find (priv, TRUE);
-	set_status (toolbar, result);
+	if (strlen (priv->find_string) == 0)
+                return;
+
+	priv->find_source_id = g_timeout_add (300, (GSourceFunc)do_search, toolbar);
 }
 
 static gboolean
@@ -612,6 +633,12 @@ ephy_find_toolbar_dispose (GObject *object)
 		priv->find_again_source_id = 0;
 	}
 
+	if (priv->find_source_id != 0)
+	{
+		g_source_remove (priv->find_source_id);
+		priv->find_source_id = 0;
+	}
+
 	G_OBJECT_CLASS (ephy_find_toolbar_parent_class)->dispose (object);
 }