From 83f23be9b6b5c2f1ae39d7d045353036b07f872d Mon Sep 17 00:00:00 2001
From: Thierry Lorthiois <lorthiois@bbsoft.fr>
Date: Fri, 30 Oct 2009 17:18:44 +0000
Subject: [PATCH] fixed config reload SIGUSR1. added systray = 1 parameter to
 enable systray

---
 src/battery/battery.c    | 44 +++++++++++++++++++-------
 src/battery/battery.h    |  1 +
 src/clock/clock.c        | 35 +++++++++++++++++----
 src/clock/clock.h        |  2 ++
 src/config.c             | 67 +++++++++++++++-------------------------
 src/config.h             |  1 -
 src/panel.c              |  9 +++++-
 src/systray/systraybar.c | 50 +++++++++++++++++++-----------
 src/systray/systraybar.h |  7 +++--
 src/tint.c               | 32 +++++--------------
 src/tooltip/tooltip.c    | 19 ++++++++++++
 src/tooltip/tooltip.h    |  1 +
 12 files changed, 161 insertions(+), 107 deletions(-)

diff --git a/src/battery/battery.c b/src/battery/battery.c
index 4c82893..c88c3a5 100644
--- a/src/battery/battery.c
+++ b/src/battery/battery.c
@@ -32,8 +32,8 @@
 #include "battery.h"
 #include "clock.h"
 
-PangoFontDescription *bat1_font_desc;
-PangoFontDescription *bat2_font_desc;
+PangoFontDescription *bat1_font_desc=0;
+PangoFontDescription *bat2_font_desc=0;
 struct batstate battery_state;
 int battery_enabled;
 
@@ -41,8 +41,11 @@ static char buf_bat_percentage[10];
 static char buf_bat_time[20];
 
 int8_t battery_low_status;
-char *battery_low_cmd;
-char *path_energy_now, *path_energy_full, *path_current_now, *path_status;
+char *battery_low_cmd=0;
+char *path_energy_now=0;
+char *path_energy_full=0;
+char *path_current_now=0;
+char *path_status=0;
 
 
 void init_battery()
@@ -55,7 +58,6 @@ void init_battery()
 
 	if (!battery_enabled) return;
 
-	path_energy_now = path_energy_full = path_current_now = path_status = 0;
 	directory = g_dir_open("/sys/class/power_supply", 0, &error);
 	if (error)
 		g_error_free(error);
@@ -75,7 +77,7 @@ void init_battery()
 	if (directory)
 		g_dir_close(directory);
 	if (!battery_dir) {
-		battery_enabled = 0;
+		cleanup_battery();
 		fprintf(stderr, "ERROR: battery applet can't found power_supply\n");
 		return;
 	}
@@ -107,13 +109,8 @@ void init_battery()
 		fp3 = fopen(path_current_now, "r");
 		fp4 = fopen(path_status, "r");
 		if (fp1 == NULL || fp2 == NULL || fp3 == NULL || fp4 == NULL) {
-			battery_enabled = 0;
+			cleanup_battery();
 			fprintf(stderr, "ERROR: battery applet can't open energy_now\n");
-			g_free(path_energy_now);
-			g_free(path_energy_full);
-			g_free(path_current_now);
-			g_free(path_status);
-			path_energy_now = path_energy_full = path_current_now = path_status = 0;
 		}
 		fclose(fp1);
 		fclose(fp2);
@@ -126,6 +123,29 @@ void init_battery()
 }
 
 
+void cleanup_battery()
+{
+	battery_enabled = 0;
+	if (bat1_font_desc)
+		pango_font_description_free(bat1_font_desc);
+	if (bat2_font_desc)
+		pango_font_description_free(bat2_font_desc);
+	if (path_energy_now)
+		g_free(path_energy_now);
+	if (path_energy_full)
+		g_free(path_energy_full);
+	if (path_current_now)
+		g_free(path_current_now);
+	if (path_status)
+		g_free(path_status);
+	if (battery_low_cmd)
+		g_free(battery_low_cmd);
+
+	battery_low_cmd = path_energy_now = path_energy_full = path_current_now = path_status = 0;
+	bat1_font_desc = bat2_font_desc = 0;
+}
+
+
 void init_battery_panel(void *p)
 {
 	Panel *panel = (Panel*)p;
diff --git a/src/battery/battery.h b/src/battery/battery.h
index fe3bb3a..9036f2e 100644
--- a/src/battery/battery.h
+++ b/src/battery/battery.h
@@ -62,6 +62,7 @@ void update_battery();
 
 void init_battery();
 void init_battery_panel(void *panel);
+void cleanup_battery();
 
 void draw_battery(void *obj, cairo_t *c, int active);
 
diff --git a/src/clock/clock.c b/src/clock/clock.c
index 2745a80..c1504be 100644
--- a/src/clock/clock.c
+++ b/src/clock/clock.c
@@ -32,16 +32,17 @@
 #include "clock.h"
 
 
-char *time1_format;
-char *time2_format;
-char *clock_lclick_command;
-char *clock_rclick_command;
+char *time1_format=0;
+char *time2_format=0;
+char *clock_lclick_command=0;
+char *clock_rclick_command=0;
 struct timeval time_clock;
 int  time_precision;
-PangoFontDescription *time1_font_desc;
-PangoFontDescription *time2_font_desc;
+PangoFontDescription *time1_font_desc=0;
+PangoFontDescription *time2_font_desc=0;
 static char buf_time[40];
 static char buf_date[40];
+int clock_enabled;
 
 
 void init_precision()
@@ -78,6 +79,7 @@ void init_clock_panel(void *p)
 	clock->area._resize = resize_clock;
 	clock->area.resize = 1;
 	clock->area.redraw = 1;
+	clock->area.on_screen = 1;
 
 	strftime(buf_time, sizeof(buf_time), time1_format, localtime(&time_clock.tv_sec));
 	get_text_size(time1_font_desc, &time_height_ink, &time_height, panel->area.height, buf_time, strlen(buf_time));
@@ -110,6 +112,27 @@ void init_clock_panel(void *p)
 }
 
 
+void cleanup_clock()
+{
+	clock_enabled = 0;
+	if (time1_font_desc)
+		pango_font_description_free(time1_font_desc);
+	if (time2_font_desc)
+		pango_font_description_free(time2_font_desc);
+	if (time1_format)
+		g_free(time1_format);
+	if (time2_format)
+		g_free(time2_format);
+	if (clock_lclick_command)
+		g_free(clock_lclick_command);
+	if (clock_rclick_command)
+		g_free(clock_rclick_command);
+	time1_font_desc = time2_font_desc = 0;
+	time1_format = time2_format = 0;
+	clock_lclick_command = clock_rclick_command = 0;
+}
+
+
 void draw_clock (void *obj, cairo_t *c, int active)
 {
 	Clock *clock = obj;
diff --git a/src/clock/clock.h b/src/clock/clock.h
index b91c796..48538b3 100644
--- a/src/clock/clock.h
+++ b/src/clock/clock.h
@@ -32,12 +32,14 @@ extern PangoFontDescription *time1_font_desc;
 extern PangoFontDescription *time2_font_desc;
 extern char *clock_lclick_command;
 extern char *clock_rclick_command;
+extern int clock_enabled;
 
 
 // initialize clock : y position, precision, ...
 void init_clock();
 void init_clock_panel(void *panel);
 void init_precision();
+void cleanup_clock();
 
 void draw_clock (void *obj, cairo_t *c, int active);
 
diff --git a/src/config.c b/src/config.c
index 02d0265..fae676e 100644
--- a/src/config.c
+++ b/src/config.c
@@ -77,6 +77,13 @@ void init_config()
 	// append full transparency background
 	list_back = g_slist_append(0, calloc(1, sizeof(Area)));
 
+	// tint2 could reload config, so we cleanup objects
+	cleanup_systray();
+	cleanup_battery();
+	cleanup_clock();
+	cleanup_tooltip();
+
+	// panel's default value
 	memset(&panel_config, 0, sizeof(Panel));
 	panel_config.g_task.alpha = 100;
 	panel_config.g_task.alpha_active = 100;
@@ -199,6 +206,11 @@ void add_entry (char *key, char *value)
 			panel_config.monitor = atoi (value);
 			if (panel_config.monitor > 0) panel_config.monitor -= 1;
 		}
+		if (panel_config.monitor > (server.nb_monitor-1)) {
+			// server.nb_monitor minimum value is 1 (see get_monitors())
+			fprintf(stderr, "warning : monitor not found. tint2 default to all monitors.\n");
+			panel_config.monitor = 0;
+		}
 	}
 	else if (strcmp (key, "panel_size") == 0) {
 		extract_values(value, &value1, &value2, &value3);
@@ -289,9 +301,8 @@ void add_entry (char *key, char *value)
 	}
 	else if (strcmp (key, "battery_low_cmd") == 0) {
 #ifdef ENABLE_BATTERY
-		if (battery_low_cmd) g_free(battery_low_cmd);
-		if (strlen(value) > 0) battery_low_cmd = strdup (value);
-		else battery_low_cmd = 0;
+		if (strlen(value) > 0)
+			battery_low_cmd = strdup (value);
 #endif
 	}
 	else if (strcmp (key, "bat1_font") == 0) {
@@ -335,20 +346,14 @@ void add_entry (char *key, char *value)
 
 	/* Clock */
 	else if (strcmp (key, "time1_format") == 0) {
-		if (time1_format) g_free(time1_format);
 		if (strlen(value) > 0) {
 			time1_format = strdup (value);
-			panel_config.clock.area.on_screen = 1;
-		}
-		else {
-			time1_format = 0;
-			panel_config.clock.area.on_screen = 0;
+			clock_enabled = 1;
 		}
 	}
 	else if (strcmp (key, "time2_format") == 0) {
-		if (time2_format) g_free(time2_format);
-		if (strlen(value) > 0) time2_format = strdup (value);
-		else time2_format = 0;
+		if (strlen(value) > 0)
+			time2_format = strdup (value);
 	}
 	else if (strcmp (key, "time1_font") == 0) {
 		if (save_file_config) old_time1_font = strdup (value);
@@ -379,14 +384,12 @@ void add_entry (char *key, char *value)
 		memcpy(&panel_config.clock.area.pix.border, &a->pix.border, sizeof(Border));
 	}
 	else if (strcmp(key, "clock_lclick_command") == 0) {
-		if (clock_lclick_command) g_free(clock_lclick_command);
-		if (strlen(value) > 0) clock_lclick_command = strdup(value);
-		else clock_lclick_command = 0;
+		if (strlen(value) > 0)
+			clock_lclick_command = strdup(value);
 	}
 	else if (strcmp(key, "clock_rclick_command") == 0) {
-		if (clock_rclick_command) g_free(clock_rclick_command);
-		if (strlen(value) > 0) clock_rclick_command = strdup(value);
-		else clock_rclick_command = 0;
+		if (strlen(value) > 0)
+			clock_rclick_command = strdup(value);
 	}
 
 	/* Taskbar */
@@ -482,12 +485,15 @@ void add_entry (char *key, char *value)
 	}
 
 	/* Systray */
+	else if (strcmp (key, "systray") == 0) {
+		if(atoi(value) == 1)
+			systray_enabled = 1;
+	}
 	else if (strcmp (key, "systray_padding") == 0) {
 		extract_values(value, &value1, &value2, &value3);
 		systray.area.paddingxlr = systray.area.paddingx = atoi (value1);
 		if (value2) systray.area.paddingy = atoi (value2);
 		if (value3) systray.area.paddingx = atoi (value3);
-		systray.area.on_screen = 1;
 	}
 	else if (strcmp (key, "systray_background_id") == 0) {
 		int id = atoi (value);
@@ -638,29 +644,6 @@ void add_entry (char *key, char *value)
 }
 
 
-void config_finish ()
-{
-	if (panel_config.monitor > (server.nb_monitor-1)) {
-		// server.nb_monitor minimum value is 1 (see get_monitors())
-		// and panel_config->monitor is higher
-		fprintf(stderr, "warning : monitor not found. tint2 default to all monitors.\n");
-		panel_config.monitor = 0;
-	}
-
-	// TODO: user can configure layout => ordered objects in panel.area.list
-	// clock and systray before taskbar because resize(clock) can resize others object ??
-	init_tooltip();
-	init_clock();
-#ifdef ENABLE_BATTERY
-	init_battery();
-#endif
-	init_systray();
-	init_panel();
-
-	cleanup_config();
-}
-
-
 int config_read ()
 {
 	const gchar * const * system_dirs;
diff --git a/src/config.h b/src/config.h
index 42aafcf..2629e58 100644
--- a/src/config.h
+++ b/src/config.h
@@ -16,7 +16,6 @@ void init_config();
 void cleanup_config();
 int  config_read_file (const char *path);
 int  config_read ();
-void config_finish ();
 void save_config ();
 
 #endif
diff --git a/src/panel.c b/src/panel.c
index 9ac62f2..0a09968 100644
--- a/src/panel.c
+++ b/src/panel.c
@@ -71,6 +71,13 @@ void init_panel()
 	int i, old_nb_panel;
 	Panel *new_panel, *p;
 
+	init_tooltip();
+	init_systray();
+	init_clock();
+#ifdef ENABLE_BATTERY
+	init_battery();
+#endif
+
 	cleanup_taskbar();
 	for (i=0 ; i < nb_panel ; i++) {
 		free_area(&panel1[i].area);
@@ -123,7 +130,7 @@ void init_panel()
 		init_panel_size_and_position(p);
 
 		// add childs
-		if (p->clock.area.on_screen) {
+		if (clock_enabled) {
 			init_clock_panel(p);
 			p->area.list = g_slist_append(p->area.list, &p->clock);
 		}
diff --git a/src/systray/systraybar.c b/src/systray/systraybar.c
index 16dd079..661b2c6 100644
--- a/src/systray/systraybar.c
+++ b/src/systray/systraybar.c
@@ -43,20 +43,21 @@ Window net_sel_win = None, hint_win = None;
 // freedesktop specification doesn't allow multi systray
 Systraybar systray;
 int refresh_systray;
+int systray_enabled;
 
 
 void init_systray()
 {
-	if (systray.area.on_screen)
-		systray.area.on_screen = init_net();
+	start_net();
 
-	if (!systray.area.on_screen)
+	if (!systray_enabled)
 		return;
 
 	systray.area._draw_foreground = draw_systray;
 	systray.area._resize = resize_systray;
 	systray.area.resize = 1;
 	systray.area.redraw = 1;
+	systray.area.on_screen = 1;
 	refresh_systray = 0;
 }
 
@@ -80,17 +81,9 @@ void init_systray_panel(void *p)
 
 void cleanup_systray()
 {
-	if (systray.list_icons) {
-		// remove_icon change systray.list_icons
-		while(systray.list_icons)
-			remove_icon((TrayWindow*)systray.list_icons->data);
-
-		g_slist_free(systray.list_icons);
-		systray.list_icons = 0;
-	}
-
+	systray_enabled = 0;
+	systray.area.on_screen = 0;
 	free_area(&systray.area);
-	cleanup_net();
 }
 
 
@@ -177,8 +170,18 @@ void resize_systray(void *obj)
 // ***********************************************
 // systray protocol
 
-int init_net()
+void start_net()
 {
+	if (net_sel_win) {
+		// protocol already started
+		if (!systray_enabled)
+			stop_net();
+		return;
+	}
+	else
+		if (!systray_enabled)
+			return;
+
 	Window win = XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN);
 
 	// freedesktop systray specification
@@ -201,7 +204,7 @@ int init_net()
 			fprintf(stderr, " pid=%d", pid);
 		}
 		fprintf(stderr, "\n");
-		return 0;
+		return;
 	}
 
 	// init systray protocol
@@ -214,10 +217,12 @@ int init_net()
 
 	XSetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN, net_sel_win, CurrentTime);
 	if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != net_sel_win) {
+		stop_net();
 		fprintf(stderr, "tint2 : can't get systray manager\n");
-		return 0;
+		return;
 	}
 
+	//fprintf(stderr, "tint2 : systray started\n");
 	XClientMessageEvent ev;
 	ev.type = ClientMessage;
 	ev.window = server.root_win;
@@ -229,12 +234,21 @@ int init_net()
 	ev.data.l[3] = 0;
 	ev.data.l[4] = 0;
 	XSendEvent(server.dsp, server.root_win, False, StructureNotifyMask, (XEvent*)&ev);
-	return 1;
 }
 
 
-void cleanup_net()
+void stop_net()
 {
+	//fprintf(stderr, "tint2 : systray stopped\n");
+	if (systray.list_icons) {
+		// remove_icon change systray.list_icons
+		while(systray.list_icons)
+			remove_icon((TrayWindow*)systray.list_icons->data);
+
+		g_slist_free(systray.list_icons);
+		systray.list_icons = 0;
+	}
+
 	if (net_sel_win != None) {
 		XDestroyWindow(server.dsp, net_sel_win);
 		net_sel_win = None;
diff --git a/src/systray/systraybar.h b/src/systray/systraybar.h
index 778b892..9e3b990 100644
--- a/src/systray/systraybar.h
+++ b/src/systray/systraybar.h
@@ -38,10 +38,11 @@ typedef struct
 } TrayWindow;
 
 
+// net_sel_win != None when protocol started
 extern Window net_sel_win;
 extern Systraybar systray;
 extern int refresh_systray;
-
+extern int systray_enabled;
 
 void init_systray();
 void init_systray_panel(void *p);
@@ -52,8 +53,8 @@ void resize_systray(void *obj);
 
 // systray protocol
 // many tray icon doesn't manage stop/restart of the systray manager
-int init_net();
-void cleanup_net();
+void start_net();
+void stop_net();
 void net_message(XClientMessageEvent *e);
 
 gboolean add_icon(Window id);
diff --git a/src/tint.c b/src/tint.c
index edaa3cd..903a4cf 100644
--- a/src/tint.c
+++ b/src/tint.c
@@ -125,35 +125,18 @@ void init (int argc, char *argv[])
 void cleanup()
 {
 	cleanup_systray();
+	stop_net();
 	cleanup_panel();
+	cleanup_tooltip();
+	cleanup_clock();
+#ifdef ENABLE_BATTERY
+	cleanup_battery();
+#endif
 
 	if (default_icon) {
 		imlib_context_set_image(default_icon);
 		imlib_free_image();
 	}
-	if (g_tooltip.window) {
-		XDestroyWindow(server.dsp, g_tooltip.window);
-		g_tooltip.window = 0;
-	}
-	if (g_tooltip.font_desc) {
-		pango_font_description_free(g_tooltip.font_desc);
-		g_tooltip.font_desc = 0;
-	}
-	if (time1_font_desc) pango_font_description_free(time1_font_desc);
-	if (time2_font_desc) pango_font_description_free(time2_font_desc);
-	if (time1_format) g_free(time1_format);
-	if (time2_format) g_free(time2_format);
-#ifdef ENABLE_BATTERY
-	if (bat1_font_desc) pango_font_description_free(bat1_font_desc);
-	if (bat2_font_desc) pango_font_description_free(bat2_font_desc);
-	if (battery_low_cmd) g_free(battery_low_cmd);
-	if (path_energy_now) g_free(path_energy_now);
-	if (path_energy_full) g_free(path_energy_full);
-	if (path_current_now) g_free(path_current_now);
-	if (path_status) g_free(path_status);
-#endif
-	if (clock_lclick_command) g_free(clock_lclick_command);
-	if (clock_rclick_command) g_free(clock_rclick_command);
 	if (config_path) g_free(config_path);
 	if (thumbnail_path) g_free(thumbnail_path);
 
@@ -730,7 +713,8 @@ int main (int argc, char *argv[])
 		cleanup();
 		exit(1);
 	}
-	config_finish();
+	init_panel();
+	cleanup_config();
 	if (thumbnail_path) {
 		// usage: tint2 -j <file> for internal use
 		printf("file %s\n", thumbnail_path);
diff --git a/src/tooltip/tooltip.c b/src/tooltip/tooltip.c
index 85ab223..157b65c 100644
--- a/src/tooltip/tooltip.c
+++ b/src/tooltip/tooltip.c
@@ -59,6 +59,25 @@ void init_tooltip()
 }
 
 
+void cleanup_tooltip()
+{
+	tooltip_hide();
+	g_tooltip.enabled = False;
+	if (g_tooltip.task) {
+		alarm(0);
+		g_tooltip.task = 0;
+	}
+	if (g_tooltip.window) {
+		XDestroyWindow(server.dsp, g_tooltip.window);
+		g_tooltip.window = 0;
+	}
+	if (g_tooltip.font_desc) {
+		pango_font_description_free(g_tooltip.font_desc);
+		g_tooltip.font_desc = 0;
+	}
+}
+
+
 void tooltip_sighandler(int sig)
 {
 	if (g_tooltip.current_state == TOOLTIP_ABOUT_TO_SHOW)
diff --git a/src/tooltip/tooltip.h b/src/tooltip/tooltip.h
index 5089ea1..cddb73c 100644
--- a/src/tooltip/tooltip.h
+++ b/src/tooltip/tooltip.h
@@ -47,6 +47,7 @@ extern Tooltip g_tooltip;
 
 
 void init_tooltip();
+void cleanup_tooltip();
 void tooltip_sighandler(int sig);
 void tooltip_trigger_show(Task* task, int x, int y);
 void tooltip_show();
-- 
2.45.2