Allow clicking and mousewheeling on the battery panel

This commit is the same as vimishor's original [*] except that I have
added middle-click and up/down mousewheel actions. In order to fix a
ftbs I also added guards to panel.c, panel.h & tint.c

The following configuration settings have been created :-

battery_lclick_command
battery_mclick_command
battery_rclick_command
battery_uwheel_command
battery_dwheel_command

[*] c78732c46a

src/battery/battery.c

@@ -56,6 +56,11 @@ static char buf_bat_time[20];
 int8_t battery_low_status;
 unsigned char battery_low_cmd_sent;
 char *battery_low_cmd;
+char *battery_lclick_command;
+char *battery_mclick_command;
+char *battery_rclick_command;
+char *battery_uwheel_command;
+char *battery_dwheel_command;
 gchar *path_energy_now;
 gchar *path_energy_full;
 gchar *path_current_now;
@@ -141,6 +146,11 @@ void default_battery()
 	bat1_font_desc = NULL;
 	bat2_font_desc = NULL;
 	battery_low_cmd = NULL;
+	battery_lclick_command = NULL;
+	battery_mclick_command = NULL;
+	battery_rclick_command = NULL;
+	battery_uwheel_command = NULL;
+	battery_dwheel_command = NULL;
 	path_energy_now = NULL;
 	path_energy_full = NULL;
 	path_current_now = NULL;
@@ -171,6 +181,16 @@ void cleanup_battery()
 	path_status = NULL;
 	free(battery_low_cmd);
 	battery_low_cmd = NULL;
+	free(battery_lclick_command);
+	battery_lclick_command = NULL;
+	free(battery_mclick_command);
+	battery_mclick_command = NULL;
+	free(battery_rclick_command);
+	battery_rclick_command = NULL;
+	free(battery_uwheel_command);
+	battery_uwheel_command = NULL;
+	free(battery_dwheel_command);
+	battery_dwheel_command = NULL;
 	stop_timeout(battery_timeout);
 	battery_timeout = NULL;
 	battery_found = 0;
@@ -574,3 +594,26 @@ int resize_battery(void *obj)
 	}
 	return ret;
 }
+
+void battery_action(int button)
+{
+	char *command = 0;
+	switch (button) {
+		case 1:
+		command = battery_lclick_command;
+		break;
+		case 2:
+		command = battery_mclick_command;
+		break;
+		case 3:
+		command = battery_rclick_command;
+		break;
+		case 4:
+		command = battery_uwheel_command;
+		break;
+		case 5:
+		command = battery_dwheel_command;
+		break;
+	}
+	tint_exec(command);
+}

src/battery/battery.h

@@ -56,6 +56,12 @@ extern int percentage_hide;
 extern int8_t battery_low_status;
 extern char *battery_low_cmd;
 
+extern char *battery_lclick_command;
+extern char *battery_mclick_command;
+extern char *battery_rclick_command;
+extern char *battery_uwheel_command;
+extern char *battery_dwheel_command;
+
 // default global data
 void default_battery();
 
@@ -71,4 +77,6 @@ void draw_battery(void *obj, cairo_t *c);
 
 int  resize_battery(void *obj);
 
+void battery_action(int button);
+
 #endif

src/config.c

@@ -349,6 +349,36 @@ void add_entry (char *key, char *value)
 		battery_low_status = atoi(value);
 		if(battery_low_status < 0 || battery_low_status > 100)
 			battery_low_status = 0;
+#endif
+	}
+	else if (strcmp(key, "battery_lclick_command") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			battery_lclick_command = strdup(value);
+#endif
+	}
+	else if (strcmp(key, "battery_mclick_command") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			battery_mclick_command = strdup(value);
+#endif
+	}
+	else if (strcmp(key, "battery_rclick_command") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			battery_rclick_command = strdup(value);
+#endif
+	}
+	else if (strcmp(key, "battery_uwheel_command") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			battery_uwheel_command = strdup(value);
+#endif
+	}
+	else if (strcmp(key, "battery_dwheel_command") == 0) {
+#ifdef ENABLE_BATTERY
+		if (strlen(value) > 0)
+			battery_dwheel_command = strdup(value);
 #endif
 	}
 	else if (strcmp (key, "battery_low_cmd") == 0) {

src/panel.c

@@ -796,6 +796,22 @@ int click_clock(Panel *panel, int x, int y)
 }
 
 
+#ifdef ENABLE_BATTERY
+int click_battery(Panel *panel, int x, int y)
+{
+	Battery bat = panel->battery;
+	if (panel_horizontal) {
+		if (bat.area.on_screen && x >= bat.area.posx && x <= (bat.area.posx + bat.area.width))
+			return TRUE;
+	} else {
+		if (bat.area.on_screen && y >= bat.area.posy && y <= (bat.area.posy + bat.area.height))
+			return TRUE;
+	}
+	return FALSE;
+}
+#endif
+
+
 Area* click_area(Panel *panel, int x, int y)
 {
 	Area* result = &panel->area;

src/panel.h

@@ -160,6 +160,11 @@ Launcher *click_launcher (Panel *panel, int x, int y);
 LauncherIcon *click_launcher_icon (Panel *panel, int x, int y);
 int click_padding(Panel *panel, int x, int y);
 int click_clock(Panel *panel, int x, int y);
+
+#ifdef ENABLE_BATTERY
+int click_battery(Panel *panel, int x, int y);
+#endif
+
 Area* click_area(Panel *panel, int x, int y);
 
 void autohide_show(void* p);

src/tint.c

@@ -456,6 +456,18 @@ int tint2_handles_click(Panel* panel, XButtonEvent* e)
 		else
 			return 0;
 	}
+	#ifdef ENABLE_BATTERY
+	if (click_battery(panel, e->x, e->y)) {
+		if (	(e->button == 1 && battery_lclick_command) ||
+			(e->button == 2 && battery_mclick_command) ||
+			(e->button == 3 && battery_rclick_command) ||
+			(e->button == 4 && battery_uwheel_command) ||
+			(e->button == 5 && battery_dwheel_command) )
+			return 1;
+		else
+			return 0;
+	}
+	#endif
 	return 0;
 }
 
@@ -603,6 +615,16 @@ void event_button_release (XEvent *e)
 		return;
 	}
 
+	#ifdef ENABLE_BATTERY
+	if (click_battery(panel, e->xbutton.x, e->xbutton.y)) {
+		battery_action(e->xbutton.button);
+		if (panel_layer == BOTTOM_LAYER)
+			XLowerWindow (server.dsp, panel->main_win);
+		task_drag = 0;
+		return;
+	}
+	#endif
+
 	if (e->xbutton.button == 1 && click_launcher(panel, e->xbutton.x, e->xbutton.y)) {
 		LauncherIcon *icon = click_launcher_icon(panel, e->xbutton.x, e->xbutton.y);
 		if (icon) {