refactor: split initState function into indipendent file

src/main.ts

@@ -47,80 +47,22 @@ export default (options: ComponentOptions) => {
 			this._initialize()
 		}
 
-		private _initState() {
-			// copy state from options
-			this._states = new Proxy(
-				{ ...(states || {}) },
-				{
-					set: (
-						target: Record<string, unknown>,
-						keyPath: string,
-						value: unknown,
-					) => {
-						const valueRoute = keyPath.split('.')
-						let currentTarget = target
-						for (const i in valueRoute) {
-							const key = valueRoute[i]
-							if (Number.parseInt(i) === valueRoute.length - 1) {
-								currentTarget[key] = value
-							} else {
-								if (!currentTarget[key]) currentTarget[key] = {}
-								currentTarget = currentTarget[key] as Record<string, unknown>
-							}
-						}
-						// trigger dom updates
-						utils.triggerDomUpdates(keyPath, {
-							stateToElementsMap: this._stateToElementsMap,
-							textBindings: this._textBindings,
-							attributeBindings: this._attributeBindings,
-							updateTextNode: this._updateTextNode.bind(this),
-							getNestedState: this._getNestedState.bind(this),
-							scheduleUpdate: this._scheduleUpdate.bind(this),
-						})
-						if (this._statesListeners[keyPath])
-							this._statesListeners[keyPath](value)
-
-						// trigger %if macros
-						if (this._conditionalElements.size > 0)
-							this._conditionalElements.forEach((info, element) => {
-								if (info.expr.includes(keyPath))
-									this._evaluateIfCondition(element, info.expr)
-							})
-
-						// trigger state update events
-						statesListeners?.[keyPath]?.(value)
-
-						return true
-					},
-					get: (target: Record<string, unknown>, keyPath: string) => {
-						// collect state dependencies
-						if (this._currentRenderingElement) {
-							if (!this._stateToElementsMap[keyPath])
-								this._stateToElementsMap[keyPath] = new Set()
-							this._stateToElementsMap[keyPath].add(
-								this._currentRenderingElement,
-							)
-						}
-
-						const valueRoute = keyPath.split('.')
-						let currentTarget = target
-						for (const i in valueRoute) {
-							const key = valueRoute[i]
-							if (Number.parseInt(i) === valueRoute.length - 1)
-								return currentTarget[key]
-
-							if (!currentTarget[key]) currentTarget[key] = {}
-							currentTarget = currentTarget[key] as Record<string, unknown>
-						}
-						return undefined
-					},
-				},
-			)
-		}
-
 		private _initialize() {
 			// initialize state
-			this._initState()
+			this._states = utils.initState(
+				{
+					stateToElementsMap: this._stateToElementsMap,
+					textBindings: this._textBindings,
+					attributeBindings: this._attributeBindings,
+					updateTextNode: (node: Text, value: string) => this._updateTextNode(node, value, value),
+					getNestedState: (keyPath: string) => this._getNestedState(keyPath),
+					scheduleUpdate: this._scheduleUpdate.bind(this),
+					statesListeners: this._statesListeners,
+					conditionalElements: this._conditionalElements,
+					evaluateIfCondition: this._evaluateIfCondition.bind(this),
+				},
+				options.states,
+			)
 
 			// initialize shadow dom
 			const shadow = this.attachShadow({ mode: 'open' })

src/utils/index.ts

@@ -2,10 +2,12 @@ import parseTemplate from './parseTemplate'
 import processTemplateMacros from './processTemplateMarcos'
 import setupArrowFunctionHandler from './setupArrowFunctionHandler'
 import triggerDomUpdates from './triggerDomUpdates'
+import initState from './initState'
 
 export default {
 	parseTemplate,
 	processTemplateMacros,
 	setupArrowFunctionHandler,
 	triggerDomUpdates,
+	initState,
 }

src/utils/initState.ts

@@ -0,0 +1,103 @@
+import triggerDomUpdates from "./triggerDomUpdates"
+
+export default function initState(
+	ops: {
+		stateToElementsMap: Record<string, Set<HTMLElement>>
+		textBindings: Array<{
+			node: Text
+			expr: string
+			originalContent: string
+		}>
+		attributeBindings: Array<{
+			element: Element
+			attrName: string
+			expr: string
+			template: string
+		}>
+		updateTextNode: (node: Text, value: string) => void
+		getNestedState: (keyPath: string) => unknown
+		scheduleUpdate: (elements: Set<HTMLElement>) => void
+		statesListeners: Record<string, (value: unknown) => void>
+		conditionalElements: Map<
+			Element,
+			{
+				expr: string
+				placeholder: Comment
+				isPresent: boolean
+			}
+		>
+		evaluateIfCondition: (element: Element, expr: string) => void
+		currentRenderingElement?: HTMLElement
+	},
+	states?: Record<string, unknown>,
+) {
+	console.log(states)
+	// copy state from options
+	return new Proxy(
+		{ ...(states || {}) },
+		{
+			set: (
+				target: Record<string, unknown>,
+				keyPath: string,
+				value: unknown,
+			) => {
+				const valueRoute = keyPath.split('.')
+				let currentTarget = target
+				for (const i in valueRoute) {
+					const key = valueRoute[i]
+					if (Number.parseInt(i) === valueRoute.length - 1) {
+						currentTarget[key] = value
+					} else {
+						if (!currentTarget[key]) currentTarget[key] = {}
+						currentTarget = currentTarget[key] as Record<string, unknown>
+					}
+				}
+				// trigger dom updates
+				triggerDomUpdates(keyPath, {
+					stateToElementsMap: ops.stateToElementsMap,
+					textBindings: ops.textBindings,
+					attributeBindings: ops.attributeBindings,
+					updateTextNode: ops.updateTextNode,
+					getNestedState: ops.getNestedState,
+					scheduleUpdate: ops.scheduleUpdate,
+				})
+				if (ops.statesListeners[keyPath])
+					ops.statesListeners[keyPath](value)
+
+				// trigger %if macros
+				if (ops.conditionalElements.size > 0)
+					ops.conditionalElements.forEach((info, element) => {
+						if (info.expr.includes(keyPath))
+							ops.evaluateIfCondition(element, info.expr)
+					})
+
+				// trigger state update events
+				ops.statesListeners?.[keyPath]?.(value)
+
+				return true
+			},
+			get: (target: Record<string, unknown>, keyPath: string) => {
+				// collect state dependencies
+				if (ops.currentRenderingElement) {
+					if (!ops.stateToElementsMap[keyPath])
+						ops.stateToElementsMap[keyPath] = new Set()
+					ops.stateToElementsMap[keyPath].add(
+						ops.currentRenderingElement,
+					)
+				}
+
+				const valueRoute = keyPath.split('.')
+				let currentTarget = target
+				for (const i in valueRoute) {
+					const key = valueRoute[i]
+					if (Number.parseInt(i) === valueRoute.length - 1)
+						return currentTarget[key]
+
+					if (!currentTarget[key]) currentTarget[key] = {}
+					currentTarget = currentTarget[key] as Record<string, unknown>
+				}
+				return undefined
+			},
+		},
+	)
+}