Merge pull request #1 from hyoo-ru/new-tree2

$mol_view_tree2 refactor, hyoo-ru/mam_mol#646

Author: nin-jin

life.view.tree

@@ -2,13 +2,14 @@ $hyoo_life $mol_page
 	title @ \the Life Game
 	plugins /
 		<= Theme $mol_theme_auto
+	speed? 0
 	head /
 		<= Title
 		<= Step $mol_button_minor
 			sub / <= Step_icon $mol_icon_step_forward
 			click <= step
 		<= Time $mol_switch
-			value?val <=> speed?val 0
+			value? <=> speed_str? \
 			options *
 				5 <= Normal $mol_icon_play
 				1000 <= Fast $mol_icon_fast_forward

life.view.ts

@@ -19,6 +19,10 @@ namespace $.$$ {
 		snapshot() {
 			return this.$.$mol_state_arg.value( 'snapshot' ) ?? super.snapshot()
 		}
+
+		speed_str(next?: string) {
+			return String(this.speed(next === undefined ? next : Number(next)))
+		}
 
 		step() {
 			this.speed(0)

map/map.view.tree

@@ -3,10 +3,11 @@ $hyoo_life_map $mol_plot_pane
 	gap_vert 0
 	-
 	zoom?val 16
-	scale $mol_vector_2d /
+	scale $mol_vector_2d<number> /
 		<= zoom
 		<= zoom
 	-
+	step null
 	style *
 		^
 		backgroundSize <= grid_size \