Refactoring: move all code files into a src directory

src/Logic/Actors/PendingChangesUploader.ts

@@ -0,0 +1,74 @@
+import { Changes } from "../Osm/Changes"
+import Constants from "../../Models/Constants"
+import { UIEventSource } from "../UIEventSource"
+import { Utils } from "../../Utils"
+import { Feature } from "geojson"
+
+export default class PendingChangesUploader {
+    private lastChange: Date
+
+    constructor(changes: Changes, selectedFeature: UIEventSource<Feature>) {
+        const self = this
+        this.lastChange = new Date()
+        changes.pendingChanges.addCallback(() => {
+            self.lastChange = new Date()
+
+            window.setTimeout(() => {
+                const diff = (new Date().getTime() - self.lastChange.getTime()) / 1000
+                if (Constants.updateTimeoutSec >= diff - 1) {
+                    changes.flushChanges("Flushing changes due to timeout")
+                }
+            }, Constants.updateTimeoutSec * 1000)
+        })
+
+        selectedFeature.stabilized(10000).addCallback((feature) => {
+            if (feature === undefined) {
+                // The popup got closed - we flush
+                changes.flushChanges("Flushing changes due to popup closed")
+            }
+        })
+
+        if (Utils.runningFromConsole) {
+            return
+        }
+
+        document.addEventListener("mouseout", (e) => {
+            // @ts-ignore
+            if (!e.toElement && !e.relatedTarget) {
+                changes.flushChanges("Flushing changes due to focus lost")
+            }
+        })
+
+        document.onfocus = () => {
+            changes.flushChanges("OnFocus")
+        }
+
+        document.onblur = () => {
+            changes.flushChanges("OnFocus")
+        }
+        try {
+            document.addEventListener(
+                "visibilitychange",
+                () => {
+                    changes.flushChanges("Visibility change")
+                },
+                false
+            )
+        } catch (e) {
+            console.warn("Could not register visibility change listener", e)
+        }
+
+        function onunload(e) {
+            if (changes.pendingChanges.data.length == 0) {
+                return
+            }
+            changes.flushChanges("onbeforeunload - probably closing or something similar")
+            e.preventDefault()
+            return "Saving your last changes..."
+        }
+
+        window.onbeforeunload = onunload
+        // https://stackoverflow.com/questions/3239834/window-onbeforeunload-not-working-on-the-ipad#4824156
+        window.addEventListener("pagehide", onunload)
+    }
+}