Refactoring: move all code files into a src directory

src/Logic/Actors/TitleHandler.ts

@@ -0,0 +1,60 @@
+import { Store, UIEventSource } from "../UIEventSource"
+import Locale from "../../UI/i18n/Locale"
+import Combine from "../../UI/Base/Combine"
+import { Utils } from "../../Utils"
+import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
+import { Feature } from "geojson"
+import FeaturePropertiesStore from "../FeatureSource/Actors/FeaturePropertiesStore"
+import SvelteUIElement from "../../UI/Base/SvelteUIElement"
+import TagRenderingAnswer from "../../UI/Popup/TagRendering/TagRenderingAnswer.svelte"
+import { SpecialVisualizationState } from "../../UI/SpecialVisualization"
+
+export default class TitleHandler {
+    constructor(
+        selectedElement: Store<Feature>,
+        selectedLayer: Store<LayerConfig>,
+        allElements: FeaturePropertiesStore,
+        state: SpecialVisualizationState
+    ) {
+        const currentTitle: Store<string> = selectedElement.map(
+            (selected) => {
+                const defaultTitle = state.layout?.title?.txt ?? "MapComplete"
+
+                if (selected === undefined || selectedLayer.data === undefined) {
+                    return defaultTitle
+                }
+
+                const tags = selected.properties
+                const layer = selectedLayer.data
+                if (layer.title === undefined) {
+                    return defaultTitle
+                }
+                const tagsSource =
+                    allElements.getStore(tags.id) ?? new UIEventSource<Record<string, string>>(tags)
+                const title = new SvelteUIElement(TagRenderingAnswer, {
+                    tags: tagsSource,
+                    state,
+                    config: layer.title,
+                    selectedElement: selectedElement.data,
+                    layer,
+                })
+                return (
+                    new Combine([defaultTitle, " | ", title]).ConstructElement()?.textContent ??
+                    defaultTitle
+                )
+            },
+            [Locale.language, selectedLayer]
+        )
+
+        currentTitle.addCallbackAndRunD((title) => {
+            if (Utils.runningFromConsole) {
+                return
+            }
+            try {
+                document.title = title
+            } catch (e) {
+                console.error(e)
+            }
+        })
+    }
+}