From f10b879cac73f509ad18c3346a18df2dc702a14a Mon Sep 17 00:00:00 2001
From: Dave Davenport <qball@gmpclient.org>
Date: Wed, 1 Feb 2017 21:07:07 +0100
Subject: [PATCH] Async pre-read 25 entries by default, to make it feel more
 snappy. Fixes #550

---
 doc/rofi-manpage.markdown |  6 ++++++
 doc/rofi.1                | 11 ++++++++++-
 source/dialogs/dmenu.c    |  3 ++-
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/doc/rofi-manpage.markdown b/doc/rofi-manpage.markdown
index c1982efe..3732131e 100644
--- a/doc/rofi-manpage.markdown
+++ b/doc/rofi-manpage.markdown
@@ -650,6 +650,12 @@ Force rofi mode to first read all data from stdin before showing selection windo
 Note: the default asynchronous mode will also be automatically disabled if used with conflicting options
 such as `-dump`, `-only-match` or `-auto-select`
 
+`-async-pre-read` *number*
+
+Reads the first 25 entries blocking. Then switches to async mode. This makes it feel more 'snappy'.
+
+*default*: 25
+
 ### Message dialog
 
 `-e` *message*
diff --git a/doc/rofi.1 b/doc/rofi.1
index 07cb3a9c..75872cbe 100644
--- a/doc/rofi.1
+++ b/doc/rofi.1
@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "ROFI\-MANPAGE" "" "January 2017" "" ""
+.TH "ROFI\-MANPAGE" "" "February 2017" "" ""
 .
 .SH "NAME"
 \fBrofi\fR \- A window switcher, run launcher, ssh dialog and dmenu replacement
@@ -1007,6 +1007,15 @@ Force rofi mode to first read all data from stdin before showing selection windo
 .P
 Note: the default asynchronous mode will also be automatically disabled if used with conflicting options such as \fB\-dump\fR, \fB\-only\-match\fR or \fB\-auto\-select\fR
 .
+.P
+\fB\-async\-pre\-read\fR \fInumber\fR
+.
+.P
+Reads the first 25 entries blocking\. Then switches to async mode\. This makes it feel more \'snappy\'\.
+.
+.P
+\fIdefault\fR: 25
+.
 .SS "Message dialog"
 \fB\-e\fR \fImessage\fR
 .
diff --git a/source/dialogs/dmenu.c b/source/dialogs/dmenu.c
index c4f056a7..63e5a189 100644
--- a/source/dialogs/dmenu.c
+++ b/source/dialogs/dmenu.c
@@ -635,7 +635,7 @@ int dmenu_switcher_dialog ( void )
         async = FALSE;
     }
     if ( async ) {
-        unsigned int pre_read = 0;
+        unsigned int pre_read = 25;
         find_arg_uint("-async-pre-read", &pre_read);
         async = get_dmenu_async ( pd, pre_read );
     }
@@ -728,4 +728,5 @@ void print_dmenu_options ( void )
     print_help_msg ( "-sep", "[char]", "Element separator.", "'\\n'", is_term );
     print_help_msg ( "-input", "[filename]", "Read input from file instead from standard input.", NULL, is_term );
     print_help_msg ( "-sync", "", "Force dmenu to first read all input data, then show dialog.", NULL, is_term );
+    print_help_msg ( "-async-pre-read", "[number]", "Read several entries blocking before switching to async mode", "25", is_term);
 }