uinode:add method fix + gui.reindex(document_name)

res/layouts/pages/settings-audio.xml

@@ -1,23 +1,6 @@
 <panel size='400' color='0' interval='1'>
-    <label id='l_master'>-</label>
-    <trackbar min='0' max='1' value='1' step='0.01' track-width='5' 
-        consumer='on_master_change'
-        supplier='core.get_setting("audio.volume-master")'/>
-    <label id='l_regular'>-</label>
-    <trackbar min='0' max='1' value='1' step='0.01' track-width='5' 
-        consumer='on_regular_change'
-        supplier='core.get_setting("audio.volume-regular")'/>
-    <label id='l_ui'>-</label>
-    <trackbar min='0' max='1' value='1' step='0.01' track-width='5' 
-        consumer='on_ui_change'
-        supplier='core.get_setting("audio.volume-ui")'/>
-    <label id='l_ambient'>-</label>
-    <trackbar min='0' max='1' value='1' step='0.01' track-width='5' 
-        consumer='on_ambient_change'
-        supplier='core.get_setting("audio.volume-ambient")'/>
-    <label id='l_music'>-</label>
-    <trackbar min='0' max='1' value='1' step='0.01' track-width='5' 
-        consumer='on_music_change'
-        supplier='core.get_setting("audio.volume-music")'/>
+    <panel id='tracks_panel' size='400' color='0' interval='1'>
+        <!-- content is generated in script -->
+    </panel>
     <button padding='10' onclick='menu:back()'>@Back</button>
 </panel>

res/layouts/pages/settings-audio.xml.lua

@@ -1,4 +1,12 @@
 function on_open()
+    new_volume_control("audio.volume-master", "master")
+    new_volume_control("audio.volume-regular", "regular")
+    new_volume_control("audio.volume-ui", "ui")
+    new_volume_control("audio.volume-ambient", "ambient")
+    new_volume_control("audio.volume-music", "music")
+
+    gui.reindex("core:pages/settings-audio")
+
     on_master_change()
     on_regular_change()
     on_ui_change()
@@ -6,32 +14,45 @@ function on_open()
     on_music_change()
 end
 
-function on_volume_change(setting, label, name, val)
+
+function new_volume_control(setting, id, name)
+    -- value text label
+    document.tracks_panel:add("<label id='l_"..id.."'>-</label>")
+    -- value track-bar
+    document.tracks_panel:add(string.format(
+        "<trackbar id='t_%s' min='0' max='1' value='1' step='0.01' track-width='5' "..
+        " consumer='on_%s_change'/>"
+    , id, id))
+end
+
+function on_volume_change(setting, id, name, val)
     if val ~= nil then
         core.set_setting(setting, val)
+    else
+        document["t_"..id].value = core.get_setting(setting, val)
     end
-    label.text = (
+    document["l_"..id].text = (
         gui.str(name, "settings")..": "..
         core.str_setting(setting)
     )
 end
 
 function on_master_change(val)
-    on_volume_change("audio.volume-master", document.l_master, "Master Volume", val)
+    on_volume_change("audio.volume-master", "master", "Master Volume", val)
 end
 
 function on_regular_change(val)
-    on_volume_change("audio.volume-regular", document.l_regular, "Regular Sounds", val)
+    on_volume_change("audio.volume-regular", "regular", "Regular Sounds", val)
 end
 
 function on_ui_change(val)
-    on_volume_change("audio.volume-ui", document.l_ui, "UI Sounds", val)
+    on_volume_change("audio.volume-ui", "ui", "UI Sounds", val)
 end
 
 function on_ambient_change(val)
-    on_volume_change("audio.volume-ambient", document.l_ambient, "Ambient", val)
+    on_volume_change("audio.volume-ambient", "ambient", "Ambient", val)
 end
 
 function on_music_change(val)
-    on_volume_change("audio.volume-music", document.l_music, "Music", val)
+    on_volume_change("audio.volume-music", "music", "Music", val)
 end