Feature: add 'copy-button' capabilities

src/Models/ThemeConfig/Conversion/PrepareLayer.ts

@@ -408,6 +408,12 @@ export class AddEditingElements extends DesugaringStep<LayerConfigJson> {
             delete json.allowSplit
         }
 
+        if (json.allowCopy && !usedSpecialFunctions.has("create_copy")) {
+            json.tagRenderings.push({
+                id: "create_copy",
+                render: { "*": "{create_copy()}" },
+            })
+        }
         if (json.allowMove && !usedSpecialFunctions.has("move_button")) {
             json.tagRenderings.push({
                 id: "move-button",
@@ -421,6 +427,14 @@ export class AddEditingElements extends DesugaringStep<LayerConfigJson> {
             })
         }
 
+        const spacerIndex = json.tagRenderings.findIndex(item => item?.["id"] === "spacer")
+        if (spacerIndex >= 0) {
+            json.tagRenderings.splice(spacerIndex, 1)
+        }
+        json.tagRenderings.push({
+            id: "spacer",
+            render: { "*": "<div class='m-4'/>" },
+        })
         json.tagRenderings.push(...this._addedByDefault.filter((tr) => !allIds.has(tr.id)))
 
         if (!usedSpecialFunctions.has("all_tags")) {
@@ -893,7 +907,7 @@ class AddFavouriteBadges extends DesugaringStep<LayerConfigJson> {
         const pr = json.pointRendering?.[0]
         if (pr) {
             pr.iconBadges ??= []
-            if (!pr.iconBadges.some((ti) => ti.if === "_favourite=yes")) {
+            if (!pr.iconBadges.some((ti) => ti["if"] === "_favourite=yes")) {
                 pr.iconBadges.push({ if: "_favourite=yes", then: "circle:white;heart:red" })
             }
         }

src/UI/Base/Popup.svelte

@@ -30,7 +30,7 @@
     dialogClass += " h-full-child"
   }
   let bodyClass =
-    bodyPadding + " h-full space-y-4 flex-1 overflow-y-auto overscroll-contain background-normal"
+    bodyPadding + " h-full max-h-leave-room space-y-4 flex-1 overflow-y-auto overscroll-contain background-normal"
 
   let headerClass = "flex justify-between items-center p-2 px-4 md:px-5 rounded-t-lg"
   if (!$$slots.header) {

src/UI/Popup/AddNewPoint/CreateCopy.svelte

@@ -0,0 +1,159 @@
+<script lang="ts">
+  /**
+   * A special visualisation element which allows to create a full copy (including all tags) of a node
+   */
+
+  import Popup from "../../Base/Popup.svelte"
+  import LayerConfig from "../../../Models/ThemeConfig/LayerConfig"
+  import { UIEventSource } from "../../../Logic/UIEventSource"
+  import type { Feature } from "geojson"
+  import NewPointLocationInput from "../../BigComponents/NewPointLocationInput.svelte"
+  import NextButton from "../../Base/NextButton.svelte"
+  import { GeoOperations } from "../../../Logic/GeoOperations"
+  import type { WayId } from "../../../Models/OsmFeature"
+  import { Tag } from "../../../Logic/Tags/Tag"
+  import { twJoin } from "tailwind-merge"
+  import Translations from "../../i18n/Translations"
+  import OpenBackgroundSelectorButton from "../../BigComponents/OpenBackgroundSelectorButton.svelte"
+  import Tr from "../../Base/Tr.svelte"
+  import ThemeViewState from "../../../Models/ThemeViewState"
+  import TagExplanation from "../TagExplanation.svelte"
+  import { And } from "../../../Logic/Tags/And"
+  import Loading from "../../Base/Loading.svelte"
+  import CreateNewNodeAction from "../../../Logic/Osm/Actions/CreateNewNodeAction"
+  import DocumentDuplicate from "@babeard/svelte-heroicons/solid/DocumentDuplicate"
+
+  export let state: ThemeViewState
+  export let layer: LayerConfig
+
+  export let tags: UIEventSource<Record<string, string>>
+  export let feature: Feature
+  let c = GeoOperations.centerpointCoordinates(feature)
+  let coordinate: { lon: number; lat: number } = { lat: c[1], lon: c[0] }
+  let preciseCoordinate: UIEventSource<{ lon: number; lat: number }> = new UIEventSource(undefined)
+
+  let snappedToObject: UIEventSource<WayId> = new UIEventSource<WayId>(undefined)
+
+  // Small helper variable: if the map is tapped, we should let the 'Next'-button grab some attention as users have to click _that_ to continue, not the map
+  let preciseInputIsTapped = false
+
+  const forbiddenKeys = new Set(["id", "timestamp", "user", "changeset", "version", "uid"])
+  let asTags = tags.map(tgs => Object.keys(tgs).filter(k => !k.startsWith("_") && !forbiddenKeys.has(k)).map(k => new Tag(k, tgs[k])))
+  let showPopup: UIEventSource<boolean> = new UIEventSource(false)
+
+  const showTags = state.userRelatedState.showTagsB
+  let creatingCopy = new UIEventSource(false)
+
+  const t = Translations.t.copy
+
+  async function createCopy() {
+    creatingCopy.set(true)
+    const tags: Tag[] = asTags.data
+    const location: { lon: number; lat: number } = preciseCoordinate.data
+    const newElementAction = new CreateNewNodeAction(
+      tags, location.lat, location.lon, {
+        theme: state.theme?.id ?? "unkown",
+        changeType: "copy",
+      })
+    await state.changes.applyAction(newElementAction)
+    state.newFeatures.features.ping()
+    // The 'changes' should have created a new point, which added this into the 'featureProperties'
+    const newId = newElementAction.newElementId
+    console.log("Applied pending changes, fetching store for", newId)
+    const tagsStore = state.featureProperties.getStore(newId)
+    if (!tagsStore) {
+      console.error("Bug: no tagsStore found for", newId)
+    }
+    {
+      // Set some metainfo
+      const properties = tagsStore.data
+      properties["_backend"] = state.osmConnection.Backend()
+      properties["_last_edit:timestamp"] = new Date().toISOString()
+      const userdetails = state.osmConnection.userDetails.data
+      properties["_last_edit:contributor"] = userdetails.name
+      properties["_last_edit:uid"] = "" + userdetails.uid
+      tagsStore.ping()
+    }
+    const feature = state.indexedFeatures.featuresById.data.get(newId)
+    console.log("Selecting feature", feature, "and opening their popup")
+    creatingCopy.set(false)
+    showPopup.set(false)
+    state.selectedElement.setData(feature)
+    tagsStore.ping()
+    state.mapProperties.location.setData(location)
+
+  }
+</script>
+
+<Popup shown={showPopup} fullscreen>
+  <Tr slot="header" t={t.title} />
+
+  {#if $creatingCopy}
+    <div class="h-full flex flex-col justify-center">
+      <div class="h-fit flex justify-center">
+        <Loading>
+          <Tr t={t.loading} />
+
+        </Loading>
+      </div>
+    </div>
+  {:else}
+
+    <div class="h-full flex flex-col gap-y-4 justify-between pb-4">
+      <Tr t={t.intro} />
+
+      <div class="relative" style="height: calc(100% - 7rem);">
+        <NewPointLocationInput
+          on:click={() => {
+                preciseInputIsTapped = true
+              }}
+          value={preciseCoordinate}
+          snappedTo={snappedToObject}
+          {state}
+          {coordinate}
+          targetLayer={layer}
+          presetProperties={$asTags}
+        />
+        <div
+          class={twJoin(
+              !preciseInputIsTapped && "hidden",
+              "absolute top-0 flex w-full justify-center p-12"
+            )}
+        >
+          <!-- This is an _extra_ button that appears when the map is tapped - see usertest 2023-01-07 -->
+          <NextButton on:click={() => createCopy()} clss="primary w-fit">
+            <div class="flex w-full justify-end gap-x-2">
+              <Tr t={t.confirm} />
+
+            </div>
+          </NextButton>
+        </div>
+        <div class="absolute bottom-0 left-0 p-4">
+          <OpenBackgroundSelectorButton {state} />
+        </div>
+      </div>
+
+      <div class="flex w-full justify-end">
+        <NextButton clss="primary shrink-0" on:click={() => createCopy()}>
+          <DocumentDuplicate class="w-8 mx-2" />
+          <Tr t={t.confirm} />
+
+        </NextButton>
+      </div>
+      {#if showTags}
+        <div class="subtle">
+          <TagExplanation tagsFilter={new And($asTags)} linkToWiki />
+        </div>
+      {/if}
+    </div>
+  {/if}
+
+</Popup>
+
+<div class="flex justify-end">
+
+  <button on:click={() => showPopup.set(true)}>
+    <DocumentDuplicate class="w-4" />
+    <Tr t={t.button} />
+  </button>
+</div>

src/UI/SpecialVisualisations/UISpecialVisualisations.ts

@@ -18,6 +18,7 @@ import { VariableUiElement } from "../Base/VariableUIElement"
 import { Translation } from "../i18n/Translation"
 import { FixedUiElement } from "../Base/FixedUiElement"
 import { default as FeatureTitle } from "../Popup/Title.svelte"
+import CreateCopy from "../Popup/AddNewPoint/CreateCopy.svelte"
 
 /**
  * Thin wrapper around QuestionBox.svelte to include it into the special Visualisations
@@ -336,6 +337,22 @@ class BracedVis extends SpecialVisualization {
 }
 
 
+class CreateCopyVis extends SpecialVisualizationSvelte {
+    group= "UI"
+    funcName="create_copy"
+    docs = "Allow to create a copy of the current element"
+    args = []
+    constr(state: SpecialVisualizationState, tags: UIEventSource<Record<string, string>>, argument: string[], feature: Feature, layer: LayerConfig): SvelteUIElement {
+
+        try{
+            console.log(">>> create_copy invoked")
+        return new SvelteUIElement(CreateCopy, {state, tags, argument, feature, layer} )
+        }catch (e) {
+            console.error(">>> failed",e)
+        }
+    }
+}
+
 export class UISpecialVisualisations {
     public static initList(): SpecialVisualization[] {
         return [
@@ -348,6 +365,7 @@ export class UISpecialVisualisations {
             new IfNothingKnown(),
             new ShareLinkViz(),
             new AddNewPointVis(),
+            new CreateCopyVis(),
             new Translated(),
             new BracedVis(),
             new TitleVis(),