- Updated theme plugin to support changing themes on runtime

- Added 4 themes
- Added Cache System for States

Author: NoryiE

src/elements/BaseElement.lua

@@ -101,6 +101,7 @@ function BaseElement:init(props, basalt)
     self.basalt = basalt
     self._registeredEvents = {}
     self._registeredStates = {}
+    self._cachedActiveStates = nil
 
     local currentClass = getmetatable(self).__index
 
@@ -142,6 +143,7 @@ function BaseElement:postInit()
         return self
     end
     self._postInitialized = true
+    self._modifiedProperties = {}
     if(self._props)then
         for k,v in pairs(self._props)do
             self.set(k, v)
@@ -234,6 +236,7 @@ function BaseElement:setState(stateName, priority)
     states[stateName] = priority or 0
 
     self.set("states", states)
+    self._cachedActiveStates = nil
     return self
 end
 
@@ -246,6 +249,7 @@ function BaseElement:unsetState(stateName)
     if states[stateName] ~= nil then
         states[stateName] = nil
         self.set("states", states)
+        self._cachedActiveStates = nil
     end
     return self
 end
@@ -282,6 +286,11 @@ end
 --- @shortDescription Gets all active states
 --- @return table states Array of {name, priority} sorted by priority
 function BaseElement:getActiveStates()
+    -- Return cached version if available
+    if self._cachedActiveStates then
+        return self._cachedActiveStates
+    end
+
     local states = self.get("states")
     local result = {}
 
@@ -291,6 +300,7 @@ function BaseElement:getActiveStates()
 
     table.sort(result, function(a, b) return a.priority > b.priority end)
 
+    self._cachedActiveStates = result
     return result
 end
 

src/elements/Frame.lua

@@ -29,7 +29,6 @@ function Frame.new()
     self.class = Frame
     self.set("width", 12)
     self.set("height", 6)
-    self.set("background", colors.gray)
     self.set("z", 10)
     return self
 end

src/elements/Label.lua

@@ -37,7 +37,6 @@ function Label.new()
     local self = setmetatable({}, Label):__init()
     self.class = Label
     self.set("z", 3)
-    self.set("foreground", colors.black)
     self.set("backgroundEnabled", false)
     return self
 end
@@ -49,10 +48,6 @@ end
 --- @protected
 function Label:init(props, basalt)
     VisualElement.init(self, props, basalt)
-    if(self.parent)then
-        self.set("background", self.parent.get("background"))
-        self.set("foreground", self.parent.get("foreground"))
-    end
     self.set("type", "Label")
     return self
 end

src/elements/List.lua

@@ -71,7 +71,6 @@ function List.new()
     self.set("width", 16)
     self.set("height", 8)
     self.set("z", 5)
-    self.set("background", colors.gray)
     return self
 end
 

src/layoutManager.lua

@@ -114,4 +114,4 @@ function LayoutManager.destroy(instance)
     end
 end
 
-return LayoutManager
+return LayoutManager

src/plugins/theme.lua

@@ -4,25 +4,49 @@ local errorManager = require("errorManager")
 
 local defaultTheme = {
     default = {
-        background = colors.lightGray,
+        background = colors.cyan,
         foreground = colors.black,
     },
     BaseFrame = {
         background = colors.white,
         foreground = colors.black,
 
-        Frame = {
+        Container = {
+            default = {
+                background = colors.cyan,
+                foreground = colors.black,
+            },
             background = colors.black,
-            names = {
-                basaltDebugLogClose = {
-                    background = colors.blue,
-                    foreground = colors.white
+            Button = {
+                background = colors.cyan,
+                foreground = colors.black,
+                states = {
+                    clicked = {
+                        background = colors.white,
+                        foreground = colors.black,
+                    }
                 }
             },
+            Input = {
+                background = colors.cyan,
+                foreground = colors.black,
+            },
+            Label = {
+                foreground = colors.white,
+            },
         },
         Button = {
             background = colors.cyan,
             foreground = colors.black,
+            states = {
+                clicked = {
+                    background = colors.black,
+                    foreground = colors.cyan,
+                }
+            }
+        },
+        Label = {
+            foreground = colors.black,
         },
 
         names = {
@@ -96,26 +120,6 @@ local function lookUpTemplate(theme, path)
     return current
 end
 
-local function getDefaultProperties(theme, elementType)
-    local result = {}
-    if theme.default then
-        for k,v in pairs(theme.default) do
-            if type(v) ~= "table" then
-                result[k] = v
-            end
-        end
-
-        if theme.default[elementType] then
-            for k,v in pairs(theme.default[elementType]) do
-                if type(v) ~= "table" then
-                    result[k] = v
-                end
-            end
-        end
-    end
-    return result
-end
-
 local function applyNamedStyles(result, theme, elementType, elementName, themeTable)
     if theme.default and theme.default.names and theme.default.names[elementName] then
         for k,v in pairs(theme.default.names[elementName]) do
@@ -139,17 +143,46 @@ end
 
 local function collectThemeProps(theme, path, elementType, elementName)
     local result = {}
-    local themeTable = lookUpTemplate(theme, path)
-    if themeTable then
-        for k,v in pairs(themeTable) do
+    if theme.default then
+        for k,v in pairs(theme.default) do
             if type(v) ~= "table" then
                 result[k] = v
             end
         end
     end
+    local current = theme
+    for i = 1, #path do
+        local types = path[i]
+        local found = false
+
+        for _, elementType in ipairs(types) do
+            if current[elementType] then
+                current = current[elementType]
+                found = true
+                if current.default then
+                    for k,v in pairs(current.default) do
+                        if type(v) ~= "table" then
+                            result[k] = v
+                        end
+                    end
+                end
+                break
+            end
+        end
+
+        if not found then
+            current = nil
+            break
+        end
+    end
 
-    if next(result) == nil then
-        result = getDefaultProperties(theme, elementType)
+    local themeTable = lookUpTemplate(theme, path)
+    if themeTable then
+        for k,v in pairs(themeTable) do
+            if type(v) ~= "table" or k == "states" then
+                result[k] = v
+            end
+        end
     end
 
     applyNamedStyles(result, theme, elementType, elementName, themeTable)
@@ -163,22 +196,53 @@ end
 --- @param applyToChildren boolean? Whether to apply theme to child elements (default: true)
 --- @return BaseElement self The element instance
 function BaseElement:applyTheme(applyToChildren)
+    local backup = {}
+    if self._modifiedProperties then
+        for prop, _ in pairs(self._modifiedProperties) do
+            backup[prop] = true
+        end
+    end
+
     local styles = self:getTheme()
     if(styles ~= nil) then
         for prop, value in pairs(styles) do
-            local config = self._properties[prop]
-            if(config)then
-                if((config.type)=="color")then
-                    if(type(value)=="string")then
-                        if(colors[value])then
-                            value = colors[value]
+            if prop ~= "states" and not backup[prop] then
+                local config = self._properties[prop]
+                if(config)then
+                    if((config.type)=="color")then
+                        if(type(value)=="string")then
+                            if(colors[value])then
+                                value = colors[value]
+                            end
+                        end
+                    end
+                    self.set(prop, value)
+                end
+            end
+        end
+        if styles.states then
+            for stateName, stateConfig in pairs(styles.states) do
+                for prop, value in pairs(stateConfig) do
+                    if prop ~= "priority" then
+                        local config = self._properties[prop]
+                        local capitalizedName = prop:sub(1,1):upper() .. prop:sub(2)
+                        if(config)then
+                            if((config.type)=="color")then
+                                if(type(value)=="string")then
+                                    if(colors[value])then
+                                        value = colors[value]
+                                    end
+                                end
+                            end
+                            self["set" .. capitalizedName .. "State"](self, stateName, value)
                         end
                     end
                 end
-                self.set(prop, value)
             end
         end
     end
+    self._modifiedProperties = backup
+
     if(applyToChildren~=false)then
         if(self:isType("Container"))then
             local children = self.get("children")

src/propertySystem.lua

@@ -263,6 +263,7 @@ function PropertySystem:__init()
     self._values = {}
     self._observers = {}
     self._states = {}
+    self._modifiedProperties = {}
 
     self.set = function(name, value, ...)
         local oldValue = self._values[name]
@@ -275,6 +276,7 @@ function PropertySystem:__init()
                 self:updateRender()
             end
             self._values[name] = applyHooks(self, name, value, config)
+            self._modifiedProperties[name] = true
             if oldValue ~= value and self._observers[name] then
                 for _, callback in ipairs(self._observers[name]) do
                     callback(self, value, oldValue)
@@ -431,6 +433,7 @@ function PropertySystem:_updateProperty(name, value)
         oldValue = oldValue(self)
     end
 
+    self._modifiedProperties[name] = true
     self._values[name] = value
     local newValue = type(value) == "function" and value(self) or value
 

themes/classic.json

@@ -0,0 +1,47 @@
+{
+    "theme": "classic",
+    "default": {
+        "background": "black",
+        "foreground": "lightGray"
+    },
+    "BaseFrame": {
+        "background": "lightGray",
+        "Container": {
+            "background": "gray",
+            "foreground": "white",
+            "Button" : {
+                "background" : "black",
+                "foreground" : "lightGray",
+                "states": {
+                    "clicked": {
+                        "background": "white",
+                        "foreground": "black"
+                    }
+                }
+            },
+            "Input": {
+                "background": "black",
+                "foreground": "lightGray"
+            }
+        },
+        "Button": {
+            "background": "black",
+            "foreground": "lightGray",
+            "states": {
+                "clicked": {
+                    "background": "white",
+                    "foreground": "black"
+                }
+            }
+        },
+        "Label": {
+            "foreground": "black"
+        },
+        "names": {
+            "basaltDebugLog": {
+                "background": "black",
+                "foreground": "white"
+            }
+        }
+    }
+}