refactoring altclick interaction to allow parent calls without forcing the turf contents stat menu open.

code/modules/atmospherics/machinery/airalarm.dm

@@ -823,11 +823,11 @@
 	return ..()
 
 /obj/machinery/airalarm/AltClick(mob/user)
-	..()
+	. = ..()
 	if(!user.canUseTopic(src, !issilicon(user)) || !isturf(loc))
 		return
-	else
-		togglelock(user)
+	togglelock(user)
+	return TRUE
 
 /obj/machinery/airalarm/proc/togglelock(mob/living/user)
 	if(stat & (NOPOWER|BROKEN))

code/modules/atmospherics/machinery/atmosmachinery.dm

@@ -338,10 +338,9 @@ Pipelines + Other Objects -> Pipe network
 
 
 /obj/machinery/atmospherics/AltClick(mob/living/L)
-	if(is_type_in_list(src, GLOB.ventcrawl_machinery))
-		L.handle_ventcrawl(src)
-		return
-	..()
+	if(is_type_in_typecache(src, GLOB.ventcrawl_machinery))
+		return L.handle_ventcrawl(src)
+	return ..()
 
 
 /obj/machinery/atmospherics/proc/can_crawl_through()

code/modules/atmospherics/machinery/components/binary_devices/pump.dm

@@ -44,6 +44,7 @@ Thus, the two variables affect pump operation are set in New():
 		return ..()
 
 /obj/machinery/atmospherics/components/binary/pump/AltClick(mob/user)
+	. = ..()
 	var/area/A = get_area(src)
 	var/turf/T = get_turf(src)
 	if(user.canUseTopic(src, BE_CLOSE, FALSE,))
@@ -51,6 +52,7 @@ Thus, the two variables affect pump operation are set in New():
 		to_chat(user,"<span class='notice'>You maximize the pressure on the [src].</span>")
 		investigate_log("Pump, [src.name], was maximized by [key_name(usr)] at [x], [y], [z], [A]", INVESTIGATE_ATMOS)
 		message_admins("Pump, [src.name], was maximized by [ADMIN_LOOKUPFLW(usr)] at [ADMIN_COORDJMP(T)], [A]")
+		return TRUE
 
 /obj/machinery/atmospherics/components/binary/pump/layer1
 	piping_layer = PIPING_LAYER_MIN

code/modules/atmospherics/machinery/components/trinary_devices/filter.dm

@@ -28,6 +28,7 @@
 		return ..()
 
 /obj/machinery/atmospherics/components/trinary/filter/AltClick(mob/user)
+	. = ..()
 	var/area/A = get_area(src)
 	var/turf/T = get_turf(src)
 	if(user.canUseTopic(src, BE_CLOSE, FALSE,))
@@ -35,6 +36,7 @@
 		to_chat(user,"<span class='notice'>You maximize the pressure on the [src].</span>")
 		investigate_log("Filter, [src.name], was maximized by [key_name(usr)] at [x], [y], [z], [A]", INVESTIGATE_ATMOS)
 		message_admins("Filter, [src.name], was maximized by [ADMIN_LOOKUPFLW(usr)] at [ADMIN_COORDJMP(T)], [A]")
+		return TRUE
 
 /obj/machinery/atmospherics/components/trinary/filter/layer1
 	piping_layer = PIPING_LAYER_MIN

code/modules/atmospherics/machinery/components/trinary_devices/mixer.dm

@@ -30,6 +30,7 @@
 		return ..()
 
 /obj/machinery/atmospherics/components/trinary/mixer/AltClick(mob/user)
+	. = ..()
 	var/area/A = get_area(src)
 	var/turf/T = get_turf(src)
 	if(user.canUseTopic(src, BE_CLOSE, FALSE,))
@@ -37,6 +38,7 @@
 		to_chat(user,"<span class='notice'>You maximize the pressure on the [src].</span>")
 		investigate_log("Mixer, [src.name], was maximized by [key_name(usr)] at [x], [y], [z], [A]", INVESTIGATE_ATMOS)
 		message_admins("Mixer, [src.name], was maximized by [ADMIN_LOOKUPFLW(usr)] at [ADMIN_COORDJMP(T)], [A]")
+		return TRUE
 
 	//node 3 is the outlet, nodes 1 & 2 are intakes
 /obj/machinery/atmospherics/components/trinary/mixer/layer1

code/modules/atmospherics/machinery/components/unary_devices/cryo.dm

@@ -399,13 +399,14 @@
 	return ..()
 
 /obj/machinery/atmospherics/components/unary/cryo_cell/AltClick(mob/user)
+	. = ..()
 	if(user.canUseTopic(src, BE_CLOSE, FALSE, NO_TK))
 		if(state_open)
 			close_machine()
 		else
 			open_machine()
 		update_icon()
-	return ..()
+		return TRUE
 
 /obj/machinery/atmospherics/components/unary/cryo_cell/update_remote_sight(mob/living/user)
 	return // we don't see the pipe network while inside cryo.

code/modules/atmospherics/machinery/components/unary_devices/thermomachine.dm

@@ -210,13 +210,15 @@
 	min_temperature = max(T0C - (initial(min_temperature) + L * 15), TCMB) //73.15K with T1 stock parts
 
 /obj/machinery/atmospherics/components/unary/thermomachine/freezer/AltClick(mob/living/user)
+	. = ..()
 	var/area/A = get_area(src)
 	var/turf/T = get_turf(src)
 	if(!istype(user) || !user.canUseTopic(src, BE_CLOSE))
 		return
-	target_temperature = min_temperature				
+	target_temperature = min_temperature
 	investigate_log("was set to [target_temperature] K by [key_name(usr)]", INVESTIGATE_ATMOS)
 	message_admins("[src.name] was minimized by [ADMIN_LOOKUPFLW(usr)] at [ADMIN_COORDJMP(T)], [A]")
+	return TRUE
 
 /obj/machinery/atmospherics/components/unary/thermomachine/heater
 	name = "heater"
@@ -240,6 +242,7 @@
 	max_temperature = T20C + (initial(max_temperature) * L) //573.15K with T1 stock parts
 
 /obj/machinery/atmospherics/components/unary/thermomachine/heater/AltClick(mob/living/user)
+	. = ..()
 	var/area/A = get_area(src)
 	var/turf/T = get_turf(src)
 	if(!istype(user) || !user.canUseTopic(src, BE_CLOSE))
@@ -247,3 +250,4 @@
 	target_temperature = max_temperature
 	investigate_log("was set to [target_temperature] K by [key_name(usr)]", INVESTIGATE_ATMOS)
 	message_admins("[src.name] was maximized by [ADMIN_LOOKUPFLW(usr)] at [ADMIN_COORDJMP(T)], [A]")
+	return TRUE

code/modules/atmospherics/machinery/portable/portable_atmospherics.dm

@@ -81,11 +81,13 @@
 	return air_contents
 
 /obj/machinery/portable_atmospherics/AltClick(mob/living/user)
+	. = ..()
 	if(!istype(user) || !user.canUseTopic(src, BE_CLOSE, !ismonkey(user)))
 		return
 	if(holding)
 		to_chat(user, "<span class='notice'>You remove [holding] from [src].</span>")
 		replace_tank(user, TRUE)
+		return TRUE
 
 /obj/machinery/portable_atmospherics/examine(mob/user)
 	. = ..()