From 8bd80ba5d98890bb18270ab94d4c18ab010c6b2e Mon Sep 17 00:00:00 2001
From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Fri, 5 Jul 2019 15:16:42 +0800
Subject: [PATCH 1/3] Support limiting move interval

Set "moveInterval" in the rc.xml's resize section, eg.
<moveInterval>50</moveInterval> to limit move interval.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
 openbox/config.c     |  4 ++++
 openbox/config.h     |  2 ++
 openbox/moveresize.c | 37 +++++++++++++++++++++++++++++++++++--
 3 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/openbox/config.c b/openbox/config.c
index dad5d1bf..d5129bc6 100644
--- a/openbox/config.c
+++ b/openbox/config.c
@@ -65,6 +65,7 @@ GSList *config_desktops_names;
 guint   config_screen_firstdesk;
 guint   config_desktop_popup_time;
 
+gboolean         config_move_interval;
 gboolean         config_resize_redraw;
 gint             config_resize_popup_show;
 ObResizePopupPos config_resize_popup_pos;
@@ -820,6 +821,8 @@ static void parse_resize(xmlNodePtr node, gpointer d)
 
     node = node->children;
 
+    if ((n = obt_xml_find_node(node, "moveInterval")))
+        config_move_interval = obt_xml_node_int(n);
     if ((n = obt_xml_find_node(node, "drawContents")))
         config_resize_redraw = obt_xml_node_bool(n);
     if ((n = obt_xml_find_node(node, "popupShow"))) {
@@ -1115,6 +1118,7 @@ void config_startup(ObtXmlInst *i)
 
     obt_xml_register(i, "desktops", parse_desktops, NULL);
 
+    config_move_interval = 16; /* default is 16 ms(60fps) */
     config_resize_redraw = TRUE;
     config_resize_popup_show = 1; /* nonpixel increments */
     config_resize_popup_pos = OB_RESIZE_POS_CENTER;
diff --git a/openbox/config.h b/openbox/config.h
index 96a66cf1..59447b2d 100644
--- a/openbox/config.h
+++ b/openbox/config.h
@@ -103,6 +103,8 @@ extern ObPlaceMonitor config_primary_monitor;
 /*! User-specified margins around the edge of the screen(s) */
 extern StrutPartial config_margins;
 
+/*! duration(ms) to perform moving */
+extern gboolean config_move_interval;
 /*! When true windows' contents are refreshed while they are resized; otherwise
   they are not updated until the resize is complete */
 extern gboolean config_resize_redraw;
diff --git a/openbox/moveresize.c b/openbox/moveresize.c
index d12a64de..0a301caf 100644
--- a/openbox/moveresize.c
+++ b/openbox/moveresize.c
@@ -68,6 +68,8 @@ static guint waiting_for_sync;
 #ifdef SYNC
 static guint sync_timer = 0;
 #endif
+static glong last_move_time = 0;
+static guint move_timer = 0;
 
 static ObPopup *popup = NULL;
 
@@ -328,6 +330,9 @@ void moveresize_end(gboolean cancel)
         if (sync_timer) g_source_remove(sync_timer);
         sync_timer = 0;
 #endif
+    } else {
+        if (move_timer) g_source_remove(move_timer);
+        move_timer = 0;
     }
 
     /* don't use client_move() here, use the same width/height as
@@ -370,6 +375,15 @@ void moveresize_end(gboolean cancel)
     moveresize_client = NULL;
 }
 
+static gboolean move_func(gpointer data)
+{
+    client_configure(moveresize_client, cur_x, cur_y, cur_w, cur_h,
+                     TRUE, FALSE, FALSE);
+
+    move_timer = 0;
+    return FALSE; /* don't repeat */
+}
+
 static void do_move(gboolean keyboard, gint keydist)
 {
     gint resist;
@@ -380,8 +394,27 @@ static void do_move(gboolean keyboard, gint keydist)
     if (!keyboard) resist = config_resist_edge;
     resist_move_monitors(moveresize_client, resist, &cur_x, &cur_y);
 
-    client_configure(moveresize_client, cur_x, cur_y, cur_w, cur_h,
-                     TRUE, FALSE, FALSE);
+    if (!config_move_interval) {
+        client_configure(moveresize_client, cur_x, cur_y, cur_w, cur_h,
+                         TRUE, FALSE, FALSE);
+    } else if (!move_timer) {
+        GTimeVal curr_tm;
+        glong now_ms, next_ms;
+
+        g_get_current_time(&curr_tm);
+        now_ms = curr_tm.tv_sec * 1000 + curr_tm.tv_usec / 1000;
+        next_ms = last_move_time + config_move_interval;
+
+        if (next_ms <= now_ms) {
+            client_configure(moveresize_client, cur_x, cur_y, cur_w, cur_h,
+                             TRUE, FALSE, FALSE);
+            last_move_time = now_ms;
+        } else {
+            move_timer = g_timeout_add(config_move_interval, move_func, NULL);
+            last_move_time = next_ms;
+        }
+    }
+
     if (config_resize_popup_show == 2) /* == "Always" */
         popup_coords(moveresize_client, "%d x %d",
                      moveresize_client->frame->area.x,
-- 
2.17.1