extended documentation

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

.gitea/workflows/docker.yaml

@@ -53,8 +53,10 @@ jobs:
         run: |
           TAGS="$(curl -s -u "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_PASS }}" https://${{ secrets.REGISTRY_PATH }}/v2/umbrella/tags/list | jq -r ".tags[]")"
           COUNT=$(echo "$TAGS" | wc -l)
+          echo found $COUNT tags: $TAGS
           if [ $COUNT -gt 10 ]; then
             REMAIN=$((COUNT - 10))
+            echo $REMAIN tags will be kept!
             echo "$TAGS" | head -n $REMAIN > /tmp/old_tags
           else
             echo less than 10 tags, skipping cleanup

backend/src/main/java/de/srsoftware/umbrella/backend/Application.java

@@ -14,7 +14,6 @@ import de.srsoftware.umbrella.bookmarks.BookmarkApi;
 import de.srsoftware.umbrella.company.CompanyModule;
 import de.srsoftware.umbrella.contact.ContactModule;
 import de.srsoftware.umbrella.core.SettingsService;
-import de.srsoftware.umbrella.core.Util;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
 import de.srsoftware.umbrella.documents.DocumentApi;
 import de.srsoftware.umbrella.files.FileModule;
@@ -34,7 +33,6 @@ import de.srsoftware.umbrella.translations.Translations;
 import de.srsoftware.umbrella.user.UserModule;
 import de.srsoftware.umbrella.web.WebHandler;
 import de.srsoftware.umbrella.wiki.WikiModule;
-import java.io.File;
 import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.util.concurrent.Executors;
@@ -63,8 +61,6 @@ public class Application {
 		var	port              = config.get("umbrella.http.port", 8080);
 		var	threads           = config.get("umbrella.threads", 16);
 
-		config.get("umbrella.plantuml").map(Object::toString).map(File::new).filter(File::exists).ifPresent(Util::setPlantUmlJar);
-
 		var server            = HttpServer.create(new InetSocketAddress(port), 0);
 		try {
 			new Translations(config).bindPath("/api/translations").on(server);
@@ -80,7 +76,7 @@ public class Application {
 			new DocumentApi(config).bindPath("/api/document").on(server);
 			new UserLegacy(config).bindPath("/legacy/user").on(server);
 			new NotesLegacy(config).bindPath("/legacy/notes").on(server);
-			new MarkdownApi().bindPath("/api/markdown").on(server);
+			new MarkdownApi(config).bindPath("/api/markdown").on(server);
 			new NoteModule(config).bindPath("/api/notes").on(server);
 			new StockModule(config).bindPath("/api/stock").on(server);
 			new PollModule(config).bindPath("/api/poll").on(server);

core/src/main/java/de/srsoftware/umbrella/core/ModuleRegistry.java

@@ -1,7 +1,6 @@
 /* © SRSoftware 2025 */
 package de.srsoftware.umbrella.core;
 
-
 import de.srsoftware.umbrella.core.api.*;
 
 public class ModuleRegistry {

core/src/main/java/de/srsoftware/umbrella/core/Util.java

@@ -7,6 +7,7 @@ import static de.srsoftware.tools.PathHandler.GET;
 import static de.srsoftware.tools.PathHandler.POST;
 import static de.srsoftware.tools.Strings.hex;
 import static de.srsoftware.umbrella.core.Errors.INVALID_URL;
+import static de.srsoftware.umbrella.core.ModuleRegistry.markdownService;
 import static de.srsoftware.umbrella.core.constants.Constants.TIME_FORMATTER;
 import static de.srsoftware.umbrella.core.constants.Field.*;
 import static de.srsoftware.umbrella.core.exceptions.UmbrellaException.serverError;
@@ -14,7 +15,6 @@ import static java.lang.System.Logger.Level.*;
 import static java.lang.System.Logger.Level.WARNING;
 import static java.nio.charset.StandardCharsets.UTF_8;
 
-import com.xrbpowered.jparsedown.JParsedown;
 import de.srsoftware.tools.Mappable;
 import de.srsoftware.tools.Query;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
@@ -31,18 +31,12 @@ import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.regex.Pattern;
 import org.json.JSONObject;
 
 public class Util {
-	public static final System.Logger LOG = System.getLogger("Util");
-	private static final Pattern UML_PATTERN = Pattern.compile("@start(\\w+)(.*?)@end(\\1)",Pattern.DOTALL);
-	private static final Pattern SPREADSHEET_PATTERN = Pattern.compile("@startsheet(.*?)@endsheet",Pattern.DOTALL);
-	private static File plantumlJar = null;
-	private static final JParsedown MARKDOWN = new JParsedown();
-	public static final String SHA1 = "SHA-1";
+	public  static final System.Logger LOG            = System.getLogger("Util");
+	public  static final String SHA1 = "SHA-1";
 	private static final MessageDigest SHA1_DIGEST;
-	private static final Map<Integer,String> umlCache = new HashMap<>();
 
 	private static final String SCRIPT = """
 <script src="http://127.0.0.1:8080/js/jspreadsheet-ce.js"></script>
@@ -111,71 +105,11 @@ jspreadsheet(document.getElementById('spreadsheet'), {
 	public static HashMap<String, Object> mapMarkdown(String source){
 		var map = new HashMap<String,Object>();
 		map.put(SOURCE,source);
-		map.put(RENDERED,markdown(source));
+		map.put(RENDERED,markdownService().markdown(source));
 		return map;
 	}
 
-	public static String markdown(String source){
-		if (source == null) return source;
-		try {
-			var matcher = SPREADSHEET_PATTERN.matcher(source);
-			var count = 0;
-			while (matcher.find()){
-				count++;
-				var sheetData = matcher.group(0).trim();
-				var start = matcher.start(0);
-				var end = matcher.end(0);
-				source = source.substring(0, start)
-						+ "<div class=\"spreadsheet\" id=\"spreadsheet-"+count+"\">"
-						+ sheetData.substring(11,sheetData.length()-10)
-						+ "</div>"
-						+ source.substring(end);
-				matcher = SPREADSHEET_PATTERN.matcher(source);
-			}
-			if (plantumlJar != null && plantumlJar.exists()) {
-				matcher = UML_PATTERN.matcher(source);
-				while (matcher.find()) {
-					var uml = matcher.group(0).trim();
-					var start = matcher.start(0);
-					var end = matcher.end(0);
 
-					var umlHash = uml.hashCode();
-					LOG.log(DEBUG,"Hash of Plantuml code: {0}",umlHash);
-					var svg = umlCache.get(umlHash);
-					if (svg != null){
-						LOG.log(DEBUG,"Serving Plantuml generated SVG from cache…");
-						source = source.substring(0, start) + svg + source.substring(end);
-						matcher = UML_PATTERN.matcher(source);
-						continue;
-					}
-
-					LOG.log(DEBUG,"Cache miss. Generating SVG from plantuml code…");
-					ProcessBuilder processBuilder = new ProcessBuilder("java", "-jar", plantumlJar.getAbsolutePath(), "-tsvg", "-pipe");
-					var ignored = processBuilder.redirectErrorStream();
-					var process = processBuilder.start();
-					try (OutputStream os = process.getOutputStream()) {
-						os.write(uml.getBytes(UTF_8));
-						os.flush();
-					}
-
-					try (InputStream is = process.getInputStream()) {
-						byte[] out = is.readAllBytes();
-						LOG.log(DEBUG,"Generated SVG. Pushing to cache…");
-						svg = new String(out, UTF_8);
-						umlCache.put(umlHash,svg);
-						source = source.substring(0, start) + svg + source.substring(end);
-						matcher = UML_PATTERN.matcher(source);
-					}
-				}
-			}
-			return MARKDOWN.text(source);
-		} catch (Throwable e){
-			if (LOG.isLoggable(TRACE)){
-				LOG.log(TRACE,"Failed to render markdown, input was: \n{0}",source,e);
-			} else LOG.log(WARNING,"Failed to render markdown. Enable TRACE log level for details.");
-			return source;
-		}
-	}
 
 	public static HttpURLConnection open(URL url) throws IOException {
 		var conn = (HttpURLConnection) url.openConnection();
@@ -249,11 +183,6 @@ jspreadsheet(document.getElementById('spreadsheet'), {
 		return new Hash(hex(bytes),SHA1);
 	}
 
-	public static void setPlantUmlJar(File file){
-		LOG.log(INFO,"Using plantuml @ {0}",file.getAbsolutePath());
-		plantumlJar = file;
-	}
-
 	public static String dateTimeOf(long epochMilis){
 		return LocalDateTime.ofInstant(Instant.ofEpochMilli(epochMilis), ZoneId.systemDefault()).format(TIME_FORMATTER);
 	}

core/src/main/java/de/srsoftware/umbrella/core/api/MarkdownService.java

@@ -2,4 +2,5 @@
 package de.srsoftware.umbrella.core.api;
 
 public interface MarkdownService {
+	String markdown(String source);
 }

core/src/main/java/de/srsoftware/umbrella/core/constants/Field.java

@@ -15,6 +15,7 @@ public class Field {
 	public static final String BODY         = "body";
 
 	public static final String CACHE_CONTROL          = "Cache-Control";
+	public static final String CHILDREN               = "Children";
 	public static final String CODE                   = "code";
 	public static final String COMMENT                = "comment";
 	public static final String COMPANY                = "company";

core/src/main/java/de/srsoftware/umbrella/core/constants/Path.java

@@ -33,13 +33,14 @@ public class Path {
 
 	public static final String OPTION = "option";
 
-	public static final String PAGE        = "page";
-	public static final String PASSWORD    = "password";
-	public static final String PERMISSIONS = "permissions";
-	public static final String PROJECT     = "project";
-	public static final String PROPERTIES  = "properties";
-	public static final String PROPERTY    = "property";
-	public static final String PURPOSES    = "purposes";
+	public static final String PAGE              = "page";
+	public static final String PARENT_CANDIDATES = "parent_candidates";
+	public static final String PASSWORD          = "password";
+	public static final String PERMISSIONS       = "permissions";
+	public static final String PROJECT           = "project";
+	public static final String PROPERTIES        = "properties";
+	public static final String PROPERTY          = "property";
+	public static final String PURPOSES          = "purposes";
 
 	public static final String READ     = "read";
 	public static final String REDIRECT = "redirect";

core/src/main/java/de/srsoftware/umbrella/core/model/Poll.java

@@ -91,10 +91,7 @@ public class Poll implements Mappable {
 			return Map.of(
 					ID,id,
 					NAME,name,
-					DESCRIPTION, Map.of(
-							SOURCE,description,
-							RENDERED,Util.markdown(description)
-					),
+					DESCRIPTION, Util.mapMarkdown(description),
 					STATUS,status
 			);
 		}
@@ -292,10 +289,7 @@ public class Poll implements Mappable {
 				ID, id,
 				Field.OWNER, owner.toMap(),
 				NAME,name,
-				Field.DESCRIPTION, Map.of(
-						Field.SOURCE,description,
-						Field.RENDERED,Util.markdown(description)
-				),
+				Field.DESCRIPTION, Util.mapMarkdown(description),
 				Field.OPTIONS, options.stream().collect(Collectors.toMap(Option::id,Option::toMap)),
 				Field.PERMISSION, mapPermissions(),
 				Field.PRIVATE, isPrivate,

core/src/main/java/de/srsoftware/umbrella/core/model/Project.java

@@ -144,4 +144,9 @@ public class Project implements Mappable {
 		map.put(TAG_COLORS,tagColors);
 		return map;
 	}
+
+	@Override
+	public String toString() {
+		return name();
+	}
 }

demodata/.gitignore

@@ -0,0 +1 @@
+*.db-journal

demodata/config.json

@@ -0,0 +1,74 @@
+{
+  "umbrella": {
+    "base_url": "http://127.0.0.1:5173",
+    "logging": {
+      "rootLevel": "INFO"
+    },
+    "http": {
+      "port": 8080
+    },
+    "threads": 16,
+    "modules": {
+      "accounting": {
+        "database": "demodata/accounting.db"
+      },
+      "bookmark": {
+        "database": "demodata/bookmark.db"
+      },
+      "company": {
+        "database": "demodata/company.db"
+      },
+      "contact": {
+        "database": "demodata/contacts.db"
+      },
+      "document": {
+        "database": "demodata/documents.db",
+        "templates": "demodata/templates"
+      },
+      "files": {
+        "database": "demodata/files.db",
+        "base_dir": "demodata/filestore"
+      },
+      "journal": {
+        "database": "demodata/journal.db"
+      },
+      "message": {
+        "database": "demodata/message.db",
+        "smtp": {
+          "from": "umbrella@example.com",
+          "host": "none",
+          "pass": "none",
+          "port": 587,
+          "user": "none"
+        }
+      },
+      "notes": {
+        "database": "demodata/notes.db"
+      },
+      "poll": {
+        "database": "demodata/poll.db"
+      },
+      "project": {
+        "database": "demodata/projects.db"
+      },
+      "stock": {
+        "database": "demodata/stock.db"
+      },
+      "tags": {
+        "database": "demodata/tags.db"
+      },
+      "task": {
+        "database": "demodata/tasks.db"
+      },
+      "time": {
+        "database": "demodata/times.db"
+      },
+      "user": {
+        "database": "demodata/users.db"
+      },
+      "wiki": {
+        "database": "demodata/wiki.db"
+      }
+    }
+  }
+}

frontend/src/App.svelte

@@ -116,6 +116,7 @@
         <Route path="/project/:project_id/add_task" component={AddTask} />
         <Route path="/project/:id/kanban"          component={Kanban} />
         <Route path="/project/:id/view"            component={ViewPrj} />
+        <Route path="/project/:id"                 component={ViewPrj} />
         <Route path="/search"                      component={Search} />
         <Route path="/stock"                       component={Stock} />
         <Route path="/stock/location/:location_id" component={Stock} />

frontend/src/Components/Autocomplete.svelte

@@ -49,12 +49,16 @@
         console.warn(`${candidate.display} selected, but onSelect not overridden!`)
     }
 
+    function disableDropdown(){
+        candidates = [];
+        selected = null;
+    }
+
     async function ondblclick(evt){
         const select = evt.target;
         const idx    = select.value;
         candidate = candidates[idx];
-        candidates = [];
-        selected = null;
+        disableDropdown();
         onSelect(candidate);
     }
 
@@ -63,6 +67,10 @@
         selected = null;
     }
 
+    function onblur(ev){
+        setTimeout(disableDropdown,400);
+    }
+
     async function onkeyup(ev){
         if (ignore.includes(ev.key)) return;
         if (ev.key == 'ArrowDown'){
@@ -83,22 +91,19 @@
             ev.preventDefault();
             if (selected != null && selected < candidates.length) {
                 candidate = candidates[selected];
-                candidates = [];
-                selected = null;
+                disableDropdown();
                 onSelect(candidate);
                 return false;
             }
             if (ev.key == 'Enter') {
-                candidates = [];
-                selected = null;
+                disableDropdown();
                 if (onCommit(candidate)) candidate = { display : '' };
             }
             return false;
         }
         if (ev.key == 'Escape'){
             ev.preventDefault();
-            candidates = [];
-            selected = null;
+            disableDropdown();
             return false;
         }
 
@@ -110,10 +115,8 @@
 
     function select(index){
         candidate = candidates[index];
-        selected = null;
-        candidates = [];
+        <disableDropdown></disableDropdown>();
         onSelect(candidate);
-
     }
 
     function scrollTo(index){
@@ -145,11 +148,11 @@
 </style>
 
 <span class="autocomplete">
-    <input type="text" bind:value={candidate.display} {onkeyup} autofocus={autofocus} {id} />
+    <input type="text" bind:value={candidate.display} {onkeyup} autofocus={autofocus} {id} {onblur} />
     {#if candidates && candidates.length > 0}
-    <ul bind:this={list_elem} class="suggestions">
+    <ul bind:this={list_elem} class="suggestions" tabindex="-1">
         {#each candidates as candidate,i}
-        <li class="option {selected==i?'highlight':''}" onclick={e => select(i)} ondblclick={e => select(i)}>{candidate.display}</li>
+        <li class="option {selected==i?'highlight':''}" tabindex="-1" onclick={e => select(i)} ondblclick={e => select(i)}>{candidate.display}</li>
         {/each}
     </ul>
     {/if}

frontend/src/routes/notes/Index.svelte

@@ -33,6 +33,7 @@
             authors    = {...authors, ...data.authors};
             loader.offset += loader.limit;
             loader.active  = false;
+            console.log({authors});
             yikes();
             if (Object.keys(data.notes).length) onscroll(null); // when notes were received, check whether they fill up the page
 
@@ -78,4 +79,4 @@
 </svelte:head>
 
 <svelte:window {onscroll} />
-<List {notes} />
+<List {notes} {authors} />

frontend/src/routes/notes/List.svelte

@@ -64,6 +64,7 @@
     <legend class="entity" onclick={() => goToEntity(note)}>{title(note)}</legend>
     {/if}
     <legend class="time">
+        {#if !module} {authors[note.user_id].name} – {/if}
         {note.timestamp.replace('T',' ')}
         {#if user.id == note.user_id}
         <button class="symbol" onclick={() => drop(note.id)}></button>

frontend/src/routes/project/Create.svelte

@@ -1,7 +1,7 @@
 <script>
     import { useTinyRouter } from 'svelte-tiny-router';
 
-    import { api }           from '../../urls.svelte.js';
+    import { api, post }           from '../../urls.svelte.js';
     import { error, yikes }  from '../../warn.svelte';
     import { t }             from '../../translations.svelte.js';
 
@@ -21,13 +21,9 @@
     });
 
     async function onsubmit(ev){
-        ev.preventDefault();
+        if (ev) ev.preventDefault();
         const url = api('project');
-        var resp  = await fetch(url,{
-            credentials : 'include',
-            method      : 'POST',
-            body        : JSON.stringify(project)
-        });
+        var resp  = await post(url,project);
         if (resp.ok){
             var newProject = await resp.json();
             router.navigate(`/project/${newProject.id}/view`);
@@ -50,72 +46,70 @@
     label{ display: block }
 </style>
 
-<form {onsubmit}>
+<fieldset>
+    <legend>
+        {t('create_new_project')}
+    </legend>
     <fieldset>
-        <legend>
-            {t('create_new_project')}
-        </legend>
-        <fieldset>
-            <legend>{t('basic_data')}</legend>
-            <table>
-                <tbody>
-                    <tr>
-                        <th>
-                            {t('company_optional')}
-                        </th>
-                        <td>
-                            <CompanySelector caption={t('no_company')} {onselect} />
-                        </td>
-                    </tr>
-                    <tr>
-                        <th>
-                            {t('Name')}
-                        </th>
-                        <td>
-                            <input type="text" bind:value={project.name}/>
-                        </td>
-                    </tr>
-                    <tr>
-                        <th>
-                            {t('description')}
-                        </th>
-                        <td>
-                            <MarkdownEditor bind:value={project.description} simple={true} />
-                        </td>
-                    </tr>
-                    {#if showSettings}
-                    <tr>
-                        <th>
-                            {t('settings')}
-                        </th>
-                        <td>
-                            <label>
-                                <input type="checkbox" bind:checked={project.settings.show_closed} />
-                                {t('display_closed_tasks')}
-                            </label>
-                        </td>
-                    </tr>
-                    {:else}
-                    <tr>
-                        <th>
-                            {t('settings')}
-                        </th>
-                        <td>
-                            <button onclick={toggleSettings} >{t('extended_settings')}</button>
-                        </td>
-                    </tr>
-                    {/if}
-                    <tr>
-                        <th>
-                            {t('tags')}
-                        </th>
-                        <td>
-                            <Tags module="project" bind:tags={project.tags} />
-                        </td>
-                    </tr>
-                </tbody>
-            </table>
-        </fieldset>
-        <button type="submit" disabled={!ready}>{t('create')}</button>
+        <legend>{t('basic_data')}</legend>
+        <table>
+            <tbody>
+                <tr>
+                    <th>
+                        {t('company_optional')}
+                    </th>
+                    <td>
+                        <CompanySelector caption={t('no_company')} {onselect} />
+                    </td>
+                </tr>
+                <tr>
+                    <th>
+                        {t('Name')}
+                    </th>
+                    <td>
+                        <input type="text" bind:value={project.name}/>
+                    </td>
+                </tr>
+                <tr>
+                    <th>
+                        {t('description')}
+                    </th>
+                    <td>
+                        <MarkdownEditor bind:value={project.description} simple={true} />
+                    </td>
+                </tr>
+                {#if showSettings}
+                <tr>
+                    <th>
+                        {t('settings')}
+                    </th>
+                    <td>
+                        <label>
+                            <input type="checkbox" bind:checked={project.settings.show_closed} />
+                            {t('display_closed_tasks')}
+                        </label>
+                    </td>
+                </tr>
+                {:else}
+                <tr>
+                    <th>
+                        {t('settings')}
+                    </th>
+                    <td>
+                        <button onclick={toggleSettings} >{t('extended_settings')}</button>
+                    </td>
+                </tr>
+                {/if}
+                <tr>
+                    <th>
+                        {t('tags')}
+                    </th>
+                    <td>
+                        <Tags module={null} bind:tags={project.tags} onEmptyCommit={onsubmit} />
+                    </td>
+                </tr>
+            </tbody>
+        </table>
     </fieldset>
-</form>
+    <button onclick={onsubmit} disabled={!ready}>{t('create')}</button>
+</fieldset>

frontend/src/routes/project/View.svelte

@@ -2,7 +2,7 @@
     import { onMount, onDestroy }       from 'svelte';
     import { useTinyRouter } from 'svelte-tiny-router';
 
-    import { api, eventStream } from '../../urls.svelte';
+    import { api, eventStream, patch, post } from '../../urls.svelte';
     import { error, yikes }  from '../../warn.svelte';
     import { t }             from '../../translations.svelte';
 
@@ -35,11 +35,7 @@
 
     async function addState(){
         const url  = api(`project/${id}/state`);
-        const resp = await fetch(url,{
-            credentials: 'include',
-            method: 'POST',
-            body: JSON.stringify(new_state)
-        });
+        const resp = await post(url,new_state);
         if (resp.ok){
             const json = await resp.json();
             project.allowed_states[json.code] = json.name;
@@ -139,11 +135,7 @@
 
     async function update(data){
         const url  = api(`project/${id}`);
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'PATCH',
-            body        : JSON.stringify(data)
-        });
+        const resp = await patch(url,data);
         if (resp.ok){
             yikes();
             project = await resp.json();
@@ -160,6 +152,20 @@
         update({members:members});
     }
 
+    async function updateStateName(state_id,name){
+        const url  = api(`project/${id}/state`);
+        const resp = await patch(url,{id:state_id,name});
+        if (resp.ok){
+            const json = await resp.json();
+            project.allowed_states[json.code]=json.name;
+            yikes();
+            return true;
+        } else {
+            error(resp);
+            return false;
+        }
+    }
+
     function showClosed(){
         show_closed = !show_closed;
         loadTasks();
@@ -243,7 +249,9 @@
         {/if}
         {key}
     </div>
-    <div>{project.allowed_states[key]}</div>
+    <div>
+        <LineEditor value={project.allowed_states[key]} editable={true} onSet={newName => updateStateName(+key,newName)} />
+    </div>
     {/each}
     <div>
         <input type="number" bind:value={new_state.code} />

frontend/src/routes/task/Add.svelte

@@ -2,7 +2,7 @@
     import { onMount }       from 'svelte';
     import { useTinyRouter } from 'svelte-tiny-router';
 
-    import { api, get }      from '../../urls.svelte.js';
+    import { api, get, post }      from '../../urls.svelte.js';
     import { error, yikes }  from '../../warn.svelte';
     import { t }             from '../../translations.svelte.js';
     import { user }          from '../../user.svelte.js';
@@ -79,6 +79,7 @@
                 task.members[assignee] = project.members[assignee];
                 task.members[assignee].permission = { name : "ASSIGNEE", code : 3 }
             }
+            if (task.taks.length < 1) task.tags = project.tags;
             yikes();
         } else {
             error(resp);
@@ -104,11 +105,7 @@
 
     async function saveTask(){
         const url  = api('task/add');
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'POST',
-            body        : JSON.stringify(task)
-        });
+        const resp = await post(url,task);
         if (resp.ok) {
             localStorage.removeItem(`task/${task.id}/description`);
             if (!assignee) { // if assignee is set, this form was opened within an external context. hence we don`t want to navigate somewhere else!
@@ -158,7 +155,7 @@
         </div>
         <div>{t('tags')}</div>
         <div>
-            <Tags module="task" bind:tags={task.tags} />
+            <Tags module={null} bind:tags={task.tags} onEmptyCommit={saveTask} />
         </div>
 
         {#if extendedSettings}

frontend/src/routes/task/ListTask.svelte

@@ -3,7 +3,7 @@
     import { useTinyRouter } from 'svelte-tiny-router';
 
     import { dragged }       from './dragndrop.svelte';
-    import { api }           from '../../urls.svelte';
+    import { api, drop, patch, post }           from '../../urls.svelte';
     import { error, yikes }  from '../../warn.svelte';
     import { t }             from '../../translations.svelte';
     import { timetrack }     from '../../user.svelte';
@@ -47,10 +47,7 @@
     async function deleteTask(){
         if (confirm(t('confirm_delete',{element:task.name}))){
             const url  = api(`task/${task.id}`);
-            const resp = await fetch(url,{
-                credentials : 'include',
-                method      : 'DELETE'
-            });
+            const resp = await drop(url);
             if (resp.ok){
                 deleted = true;
             } else {
@@ -70,11 +67,7 @@
         ev.stopPropagation();
         if (dragged.element.id == task.id) return;
         const  url = api(`task/${dragged.element.id}`);
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'PATCH',
-            body        : JSON.stringify({ parent_task_id : task.id})
-        });
+        const resp = await patch(url, { parent_task_id : task.id});
         if (resp.ok) {
             yikes();
         } else {
@@ -90,11 +83,7 @@
             show_closed    : show_closed
         };
         if (task.show_closed) data.show_closed = true;
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'POST',
-            body        : JSON.stringify(data)
-        });
+        const resp = await post(url,data);
         if (resp.ok){
             children = await resp.json();
             yikes();
@@ -112,11 +101,7 @@
 
     async function patchTask(changeset){
         const url  = api(`task/${task.id}`);
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'PATCH',
-            body        : JSON.stringify(changeset)
-        });
+        const resp = await patch(url,changeset);
         if (resp.ok){
             task = await resp.json();
             return true;
@@ -145,9 +130,7 @@
 		if (children && lastEvent && lastEvent.task) {
 			if (lastEvent.event == 'delete' || lastEvent.task.parent_task_id != task.id){
 				delete children[lastEvent.task.id];
-			} else {
-				children[lastEvent.task.id] = lastEvent.task;
-			}
+			} else children[lastEvent.task.id] = lastEvent.task;
 		}
 	});
 

frontend/src/routes/task/ParentSelector.svelte

@@ -0,0 +1,27 @@
+<script>
+	import { onMount } from 'svelte';
+	import { t } from '../../translations.svelte';
+	import { api, get } from '../../urls.svelte';
+	import { error, yikes } from '../../warn.svelte';
+	import TaskTree from './Tree.svelte';
+
+	let { project, select = o => {}, task } = $props();
+	let tree = $state({});
+
+	async function loadParentCandidates(){
+		let url = api(`task/${task.id}/parent_candidates`);
+		let res = await get(url);
+		if (res.ok){
+			yikes();
+			tree = await res.json();
+		} else error(res);
+	}
+
+	onMount(loadParentCandidates);
+</script>
+
+<div class="overlay parent_selector">
+	<h2>{t('select a new parent for {entity}',{entity:task.name})}</h2>
+	{t('project')}: {project.name}
+	<TaskTree {tree} {select} />
+</div>

frontend/src/routes/task/RequiredTasks.svelte

@@ -2,7 +2,7 @@
     import { onMount } from 'svelte';
     import { useTinyRouter } from 'svelte-tiny-router';
 
-    import { api } from '../../urls.svelte';
+    import { api, get, patch, post } from '../../urls.svelte';
     import { error, yikes }  from '../../warn.svelte';
     import { t }   from '../../translations.svelte';
 
@@ -17,7 +17,7 @@
 
     async function add(new_task_id){
         let url = api(`task/${new_task_id}`);
-        let resp = await fetch(url,{ credentials : 'include' });
+        let resp = await get(url);
         if (resp.ok){
             yikes();
             let newTask = await resp.json();
@@ -27,7 +27,7 @@
             }
             task.required_tasks_ids.push(new_task_id);
             requiredTasks[new_task_id] = newTask;
-            await patch();
+            await update();
             delete candidates[new_task_id];
         } else {
             error(resp);
@@ -59,17 +59,11 @@
     async function loadTasks(){
         if (!task || !task.required_tasks_ids || !task.required_tasks_ids.length) return;
         const url = api('task/list');
-        const res = await fetch(url,{
-            credentials : 'include',
-            method      : 'POST',
-            body        : JSON.stringify({ids:task.required_tasks_ids})
-        });
+        const res = await post(url,{ids:task.required_tasks_ids});
         if (res.ok){
             yikes();
             requiredTasks = await res.json();
-        } else {
-            error(resp);
-        }
+        } else error(resp);
     }
 
     function oninput(){
@@ -84,19 +78,15 @@
         return false;
     }
 
-    async function patch(){
+    async function update(){
             const url  = api(`task/${task.id}`);
-            const resp = await fetch(url,{
-                credentials : 'include',
-                method      : 'PATCH',
-                body        : JSON.stringify({required_tasks_ids:task.required_tasks_ids})
-            });
+            const resp = await patch(url,{required_tasks_ids:task.required_tasks_ids});
             if (!resp.ok) error(resp);
     }
 
     async function unlink(required_task){
         task.required_tasks_ids = task.required_tasks_ids.filter(item => item != required_task.id);
-        patch();
+        update();
         delete requiredTasks[required_task.id];
     }
 

frontend/src/routes/task/TaskList.svelte

@@ -8,7 +8,7 @@
 </script>
 
 <ul>
-    {#each sortedTasks as task}
+    {#each sortedTasks as task (task.id)}
     <ListTask {states} {task} {lastEvent} siblings={tasks} {est_time} show_closed={show_closed || task.show_closed} />
     {/each}
 </ul>

frontend/src/routes/task/Tree.svelte

@@ -0,0 +1,23 @@
+<script>
+	let { select = o => {}, tree } = $props();
+
+	let nodes = $derived(Object.values(tree).sort((a,b) => a.name.localeCompare(b.name)))
+
+	function onclick(ev,node){
+		ev.preventDefault();
+		ev.stopPropagation();
+		select(node);
+		return true;
+	}
+</script>
+
+<ul>
+	{#each nodes as node (node.id)}
+	<li onclick={ev => onclick(ev,node)}>
+		{node.name}
+		{#if node.Children}
+		<svelte:self tree={node.Children} {select} />
+		{/if}
+	</li>
+	{/each}
+</ul>

frontend/src/routes/task/View.svelte

@@ -2,7 +2,7 @@
     import { onDestroy }     from 'svelte';
     import { useTinyRouter } from 'svelte-tiny-router';
 
-    import { api, eventStream } from '../../urls.svelte';
+    import { api, eventStream, get, patch, post } from '../../urls.svelte';
     import { error, yikes }  from '../../warn.svelte';
     import { t }             from '../../translations.svelte';
     import { timetrack }     from '../../user.svelte.js';
@@ -10,6 +10,7 @@
 
     import LineEditor       from '../../Components/LineEditor.svelte';
     import MarkdownEditor   from '../../Components/MarkdownEditor.svelte';
+    import ParentSelector   from './ParentSelector.svelte';
     import PermissionEditor from '../../Components/PermissionEditor.svelte';
     import Notes            from '../notes/RelatedNotes.svelte';
     import StateSelector    from '../../Components/StateSelector.svelte';
@@ -22,6 +23,7 @@
     let children       = $state(null);
     let dummy          = $derived(updateOn(id));
     let est_time = $state({sum:0});
+    let select_parent  = $state(false);
     let project        = $state(null);
     const router       = useTinyRouter();
     let showSettings   = $state(router.fullPath.endsWith('/edit'));
@@ -74,12 +76,6 @@
         router.navigate(`/project/${project.id}/kanban`)
     }
 
-
-    function gotoParent(){
-        if (!task.parent_task_id) return;
-        router.navigate(`/task/${task.parent_task_id}/view`)
-    }
-
     function gotoProject(){
         if (!project) return;
         router.navigate(`/project/${project.id}/view`)
@@ -99,32 +95,24 @@
             parent_task_id : +task.id,
             show_closed    : show_closed
         };
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'POST',
-            body:JSON.stringify(data)
-        });
+        const resp = await post(url,data);
         if (resp.ok){
             yikes();
             children = await resp.json();
-        } else {
-            error(resp);
-        }
+        } else error(resp);
     }
 
     async function loadParent(){
         const url  = api(`task/${task.parent_task_id}`);
-        const resp = await fetch(url,{credentials:'include'});
+        const resp = await get(url);
         if (resp.ok){
             task.parent = await resp.json();
-        } else {
-            error(resp);
-        }
+        } else error(resp);
     }
 
     async function loadTask(){
         const url  = api(`task/${id}`);
-        const resp = await fetch(url,{credentials:'include'});
+        const resp = await get(url);
         if (resp.ok){
             yikes();
             task     = await resp.json();
@@ -132,20 +120,29 @@
             loadChildren();
             if (task.project_id) loadProject();
             if (task.parent_task_id) loadParent();
-        } else {
-            error(resp);
-        }
+        } else error(resp);
     }
 
     async function loadProject(){
         const url  = api(`project/${task.project_id}`);
-        const resp = await fetch(url,{credentials:'include'});
+        const resp = await get(url);
         if (resp.ok){
             project = await resp.json();
             yikes();
-        } else {
-            error(await resp.text());
-        }
+        } else error(await resp.text());
+    }
+
+    function parentClick(ev){
+        ev.preventDefault();
+        if (!task.parent_task_id) return;
+        router.navigate(`/task/${task.parent_task_id}/view`);
+        return false;
+    }
+
+    function parentRightClick(ev){
+        ev.preventDefault();
+        select_parent = true;
+        return false;
     }
 
     function showClosed(){
@@ -169,11 +166,7 @@
 
     async function update(data){
         const url  = api(`task/${id}`);
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'PATCH',
-            body        : JSON.stringify(data)
-        });
+        const resp = await patch(url,data);
         if (resp.ok){
             yikes();
             let json = await resp.json();
@@ -198,6 +191,11 @@
         loadTask();
     }
 
+    function update_parent(newVal){
+        select_parent = false;
+        update({parent_task_id:newVal.id});
+    }
+
     function updatePermission(user_id,permission){
         let members      = {};
         members[user_id] = permission.code;
@@ -223,13 +221,18 @@
         <button class="symbol" title={t('files')} onclick={showPrjFiles}></button>
     </div>
     {/if}
-    {#if task.parent}
     <div>{t('parent_task')}</div>
     <div class="parent">
-        <a href="#" onclick={gotoParent}>{task.parent.name}</a>
+        {#if select_parent}
+        <ParentSelector {task} {project} select={update_parent} />
+        {:else}
+        {#if task.parent}
+        <a href="/task/{task.parent.id}/view" onclick={parentClick} oncontextmenu={parentRightClick}>{task.parent.name}</a>
         <button class="symbol" title={t('unlink')} onclick={unlink_parent}></button>
+        {/if}
+        <button class="symbol" title={t('edit')} onclick={parentRightClick}></button>
+        {/if}
     </div>
-    {/if}
     <div>{t('task')}</div>
     <div class="name">
         <LineEditor bind:value={task.name} editable={true} onSet={val => update({name:val})} />

legacy/src/main/java/de/srsoftware/umbrella/legacy/NotesLegacy.java

@@ -3,9 +3,7 @@ package de.srsoftware.umbrella.legacy;
 
 
 import static de.srsoftware.tools.Optionals.nullable;
-import static de.srsoftware.umbrella.core.ModuleRegistry.noteService;
-import static de.srsoftware.umbrella.core.ModuleRegistry.userService;
-import static de.srsoftware.umbrella.core.Util.markdown;
+import static de.srsoftware.umbrella.core.ModuleRegistry.*;
 import static de.srsoftware.umbrella.core.constants.Field.TOKEN;
 import static de.srsoftware.umbrella.core.constants.Field.URI;
 import static de.srsoftware.umbrella.core.exceptions.UmbrellaException.invalidField;
@@ -72,7 +70,7 @@ public class NotesLegacy extends BaseHandler {
 			new Tag("fieldset")
 					.add(new Tag("legend").content(authorName))
 					.add(new Tag("legend").content(note.timestamp().format(DateTimeFormatter.ISO_DATE_TIME)))
-					.add(new Tag("div").content(markdown(note.text())))
+					.add(new Tag("div").content(markdownService().markdown(note.text())))
 					.addTo(html);
 		}
 		return sendContent(ex,html.toString(2));

markdown/src/main/java/de/srsoftware/umbrella/markdown/MarkdownApi.java

@@ -3,21 +3,50 @@ package de.srsoftware.umbrella.markdown;
 
 import static de.srsoftware.tools.MimeType.MIME_HTML;
 import static de.srsoftware.umbrella.core.ModuleRegistry.userService;
+import static de.srsoftware.umbrella.core.constants.Field.BASE_URL;
+import static de.srsoftware.umbrella.core.exceptions.UmbrellaException.missingField;
+import static java.lang.System.Logger.Level.*;
+import static java.nio.charset.StandardCharsets.UTF_8;
 
 import com.sun.net.httpserver.HttpExchange;
+import com.xrbpowered.jparsedown.JParsedown;
+import de.srsoftware.configuration.Configuration;
 import de.srsoftware.tools.Path;
 import de.srsoftware.umbrella.core.BaseHandler;
 import de.srsoftware.umbrella.core.ModuleRegistry;
-import de.srsoftware.umbrella.core.Util;
 import de.srsoftware.umbrella.core.api.MarkdownService;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
+import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.regex.Pattern;
 
 public class MarkdownApi extends BaseHandler implements MarkdownService {
 
+	private static final System.Logger LOG           = System.getLogger(MarkdownApi.class.getSimpleName());
+	private static final Pattern PATTERN_ANCHOR      = Pattern.compile("(?is)<a\\b[^>]*>.*?</a>");
+	private static final Pattern PATTERN_HREF        = Pattern.compile("(?i)\\bhref\\s*=\\s*(?:\"([^\"]*)\"|'([^']*)'|([^\\s>]+))");
+	private static final Pattern PATTERN_SPREADSHEET = Pattern.compile("@startsheet(.*?)@endsheet",Pattern.DOTALL);
+	private static final Pattern PATTERN_TARGET      = Pattern.compile("(?i)\\btarget\\s*=");
+	private static final Pattern PATTERN_URL         = Pattern.compile("@start(\\w+)(.*?)@end(\\1)",Pattern.DOTALL);
+	private static final Map<Integer,String> umlCache = new HashMap<>();
+	private static final JParsedown MARKDOWN = new JParsedown();
 
-	public MarkdownApi() {
+
+	private final String baseUrl;
+	private final File plantumlJar;
+
+	public MarkdownApi(Configuration config) {
 		super();
+		Optional<String> baseUrl = config.get(BASE_URL);
+		if (baseUrl.isEmpty()) throw missingField(BASE_URL);
+		this.baseUrl = baseUrl.get();
+		plantumlJar = config.get("umbrella.plantuml").map(Object::toString).map(File::new).filter(File::exists).orElse(null);
+		if (plantumlJar != null) LOG.log(INFO,"Using plant uml @ {}",plantumlJar);
 		ModuleRegistry.add(this);
 	}
 
@@ -28,11 +57,98 @@ public class MarkdownApi extends BaseHandler implements MarkdownService {
 			var user = userService().refreshSession(ex);
 
 			if (user.isEmpty()) throw UmbrellaException.forbidden("You must be logged in to use the markdown renderer!");
-			var rendered = Util.markdown(body(ex));
+			var rendered = markdown(body(ex));
+
 			ex.getResponseHeaders().add(CONTENT_TYPE,MIME_HTML);
 			return sendContent(ex,rendered);
 		} catch (UmbrellaException e){
 			return send(ex,e);
 		}
 	}
+
+	public String markdown(String source){
+		if (source == null || source.isBlank()) return source;
+		try {
+			var matcher = PATTERN_SPREADSHEET.matcher(source);
+			var count = 0;
+			while (matcher.find()){
+				LOG.log(DEBUG,"Processing spreadsheet code…");
+				count++;
+				var sheetData = matcher.group(0).trim();
+				var start = matcher.start(0);
+				var end = matcher.end(0);
+				source = source.substring(0, start)
+						+ "<div class=\"spreadsheet\" id=\"spreadsheet-"+count+"\">"
+						+ sheetData.substring(11,sheetData.length()-10)
+						+ "</div>"
+						+ source.substring(end);
+				LOG.log(DEBUG,"Updated markdown with spreadsheet div.");
+				matcher.reset(source);
+			}
+			if (plantumlJar != null && plantumlJar.exists()) {
+				matcher = PATTERN_URL.matcher(source);
+				while (matcher.find()) {
+					var uml = matcher.group(0).trim();
+					var start = matcher.start(0);
+					var end = matcher.end(0);
+
+					var umlHash = uml.hashCode();
+					LOG.log(DEBUG,"Hash of Plantuml code: {0}",umlHash);
+					var svg = umlCache.get(umlHash);
+					if (svg != null){
+						LOG.log(DEBUG,"Serving Plantuml generated SVG from cache…");
+						source = source.substring(0, start) + svg + source.substring(end);
+						matcher.reset(source);
+						continue;
+					}
+
+					LOG.log(DEBUG,"Cache miss. Generating SVG from plantuml code…");
+					ProcessBuilder processBuilder = new ProcessBuilder("java", "-jar", plantumlJar.getAbsolutePath(), "-tsvg", "-pipe");
+					var ignored = processBuilder.redirectErrorStream();
+					var process = processBuilder.start();
+					try (OutputStream os = process.getOutputStream()) {
+						os.write(uml.getBytes(UTF_8));
+						os.flush();
+					}
+
+					try (InputStream is = process.getInputStream()) {
+						byte[] out = is.readAllBytes();
+						LOG.log(DEBUG,"Generated SVG. Pushing to cache…");
+						svg = new String(out, UTF_8);
+						umlCache.put(umlHash,svg);
+						source = source.substring(0, start) + svg + source.substring(end);
+						matcher.reset(source);
+					}
+				}
+			}
+			var rendered = MARKDOWN.text(source);
+			if (baseUrl == null) return rendered;
+			var anchors = PATTERN_ANCHOR.matcher(rendered);
+			while (anchors.find()){
+				String anchor = anchors.group();
+				LOG.log(TRACE,"Processing anchor: {}",anchor);
+				var urls = PATTERN_HREF.matcher(anchor);
+				if (!urls.find()) continue; // no url → nothing to do
+
+				var href = urls.group(1) != null ? urls.group(1) : (urls.group(2) != null ? urls.group(2) : urls.group(3));
+				LOG.log(TRACE,"  encountered href = {}",href);
+				if (!href.startsWith("http")) continue; // relative url? good!
+				LOG.log(TRACE,"  {} is not a relative url!",href);
+				var target = PATTERN_TARGET.matcher(anchor);
+				if (target.find()) continue; // target already set → leave untouched
+				LOG.log(TRACE,"  anchor has no target!");
+				if (href.startsWith(baseUrl)) continue; // local url → don`t touch
+				LOG.log(TRACE,"  {} is not an internal url, adding anchor…",href);
+				var replacement = "<a target=\"_blank\""+anchor.substring(2);
+				rendered = rendered.replace(anchor, replacement);
+				anchors.reset(rendered);
+			}
+			return rendered;
+		} catch (Throwable e){
+			if (LOG.isLoggable(TRACE)){
+				LOG.log(TRACE,"Failed to render markdown, input was: \n{0}",source,e);
+			} else LOG.log(WARNING,"Failed to render markdown. Enable TRACE log level for details.");
+			return source;
+		}
+	}
 }

project/src/main/java/de/srsoftware/umbrella/project/ProjectModule.java

@@ -97,6 +97,7 @@ public class ProjectModule extends BaseHandler implements ProjectService {
 					head = path.pop();
 					yield switch (head){
 						case null -> patchProject(ex,projectId,user.get());
+						case Path.STATE -> patchProjectState(ex,projectId,user.get());
 						default -> super.doPatch(path,ex);
 					};
 				}
@@ -229,6 +230,19 @@ public class ProjectModule extends BaseHandler implements ProjectService {
 		return sendContent(ex,project.toMap());
 	}
 
+	private boolean patchProjectState(HttpExchange ex, long projectId, UmbrellaUser user) throws IOException {
+		var project = loadMembers(projectDb.load(projectId));
+		if (!project.hasMember(user)) throw notAmember(t(PROJECT_WITH_ID,ID,project.name()));
+		var json = json(ex);
+		if (!json.has(ID)) throw missingField(ID);
+		if (!json.has(NAME)) throw missingField(NAME);
+		if (!(json.get(ID) instanceof Number fieldId)) throw invalidField(ID,Text.NUMBER);
+		var newName = json.getString(NAME);
+		if (newName.isBlank()) throw invalidField(NAME, STRING);
+		var newState = new Status(newName,fieldId.intValue());
+		return sendContent(ex, projectDb.save(projectId,newState));
+
+	}
 
 	private boolean postNewState(HttpExchange ex, long projectId, UmbrellaUser user) throws IOException {
 		var project = loadMembers(load(projectId));

project/src/main/java/de/srsoftware/umbrella/project/SqliteDb.java

@@ -267,7 +267,7 @@ CREATE TABLE IF NOT EXISTS {0} (
 	@Override
 	public Status save(long projectId, Status newState) {
 		try {
-			insertInto(TABLE_CUSTOM_STATES, PROJECT_ID, Field.CODE, NAME).values(projectId,newState.code(),newState.name()).execute(db).close();
+			replaceInto(TABLE_CUSTOM_STATES, PROJECT_ID, Field.CODE, NAME).values(projectId,newState.code(),newState.name()).execute(db).close();
 			return newState;
 		} catch (SQLException e) {
 			throw databaseException(FAILED_TO_CREATE_STATE).causedBy(e);

task/src/main/java/de/srsoftware/umbrella/task/SqliteDb.java

@@ -2,6 +2,7 @@
 package de.srsoftware.umbrella.task;
 
 
+import static de.srsoftware.tools.Optionals.is0;
 import static de.srsoftware.tools.jdbc.Condition.*;
 import static de.srsoftware.tools.jdbc.Query.*;
 import static de.srsoftware.tools.jdbc.Query.SelectQuery.ALL;
@@ -236,7 +237,7 @@ CREATE TABLE IF NOT EXISTS {0} (
 	public Map<Long, Task> listProjectTasks(Long projectId, Long parentTaskId, boolean noIndex) throws UmbrellaException {
 		try {
 			var query = select(ALL).from(TABLE_TASKS).where(PROJECT_ID,equal(projectId));
-			if (parentTaskId != 0) query.where(PARENT_TASK_ID,equal(parentTaskId));
+			if (!is0(parentTaskId)) query.where(PARENT_TASK_ID,equal(parentTaskId));
 			if (!noIndex) query.where(NO_INDEX,notIn(1));
 			var tasks = new HashMap<Long,Task>();
 			var rs = query.exec(db);

task/src/main/java/de/srsoftware/umbrella/task/TaskModule.java

@@ -32,6 +32,7 @@ import de.srsoftware.tools.SessionToken;
 import de.srsoftware.umbrella.core.BaseHandler;
 import de.srsoftware.umbrella.core.ModuleRegistry;
 import de.srsoftware.umbrella.core.api.*;
+import de.srsoftware.umbrella.core.constants.Field;
 import de.srsoftware.umbrella.core.constants.Text;
 import de.srsoftware.umbrella.core.exceptions.UmbrellaException;
 import de.srsoftware.umbrella.core.model.*;
@@ -110,8 +111,11 @@ public class TaskModule extends BaseHandler implements TaskService {
 				case null -> getUserTasks(user.get(), ex);
 				default -> {
 					var taskId = Long.parseLong(head);
-					head = path.pop();
-					yield head == null ? getTask(ex, taskId, user.get()) : super.doGet(path, ex);
+					yield switch (path.pop()){
+						case null -> getTask(ex,taskId,user.get());
+						case PARENT_CANDIDATES -> getParentCandidates(ex,taskId, user.get());
+						default -> super.doGet(path,ex);
+					};
 				}
 			};
 		} catch (UmbrellaException e) {
@@ -188,6 +192,33 @@ public class TaskModule extends BaseHandler implements TaskService {
 		return sendContent(ex, result);
 	}
 
+	private boolean getParentCandidates(HttpExchange ex, long taskId, UmbrellaUser user) throws IOException {
+		var task = taskDb.load(taskId);
+		var project = projectService().load(task.projectId());
+		var projectTasks = taskDb.listProjectTasks(project.id(),null, false);
+		var mapped = projectTasks.values().stream().collect(Collectors.toMap(Task::id,Task::toMap));
+		var roots = new HashMap<Long,Map<String,Object>>();
+		for (var map : mapped.values()){
+			if (!(map.get(ID) instanceof Long id)) continue;
+			if (id == taskId) continue;
+			if (map.get(PARENT_TASK_ID) instanceof Long parentId) {
+				var parent = mapped.get(parentId);
+				if (parent != null) {
+					var o = parent.get(Field.CHILDREN);
+					Map<Long,Object> children;
+					if (o == null) {
+						children = new HashMap<>();
+						parent.put(Field.CHILDREN,children);
+					} else children = (Map<Long, Object>) o;
+					children.put(id, map);
+				}
+			} else {
+				roots.put(id, map);
+			}
+		}
+		return sendContent(ex,roots);
+	}
+
 	private boolean getPermissionList(HttpExchange ex) throws IOException {
 		var map = new HashMap<Integer, String>();
 		for (var permission : Permission.values()) map.put(permission.code(),permission.name());
@@ -293,7 +324,7 @@ public class TaskModule extends BaseHandler implements TaskService {
 			Task parent = taskMap.get(task.parentTaskId());
 			var trunk = placeInTree(parent, taskTree, taskMap);
 			@SuppressWarnings("unchecked")
-			ArrayList<Object> children = (ArrayList<Object>) trunk.computeIfAbsent(CHILDREN, k -> new ArrayList<>());
+			ArrayList<Object> children = (ArrayList<Object>) trunk.computeIfAbsent(Field.CHILDREN, k -> new ArrayList<>());
 			children.add(mappedTask);
 			return mappedTask;
 		}

translations/src/main/resources/de.json

@@ -325,6 +325,7 @@
   "save_object": "{object} speichern",
   "search": "Suche",
   "searching…": "suche…",
+  "select a new parent for {entity}": "Neue Über-Aufgabe für „{entity}“ wählen",
   "select_company" : "Wählen Sie eine ihrer Firmen:",
   "select_customer": "Kunde auswählen",
   "select_property": "Eigenschaft auswählen",

translations/src/main/resources/en.json

@@ -325,6 +325,7 @@
   "save_object": "save {object}",
   "search": "search",
   "searching…": "searhcing…",
+  "select a new parent for {entity}": "select a new parent for '{entity}'",
   "select_company" : "select on of you companies:",
   "select_customer": "select customer",
   "select_property": "select property",

web/src/main/resources/web/css/default-color.css

@@ -74,6 +74,7 @@ tr:hover .taglist .tag button {
     color: black;
 }
 
+code,
 .code{
 	color: chocolate;
 }
@@ -336,4 +337,4 @@ tr:hover .taglist .tag button {
 		background: black;
 		color: orange;
 	}
-}
+}

web/src/main/resources/web/css/default.css

@@ -15,9 +15,10 @@ body {
     background-position: 98% 70px;
     background-attachment: fixed;
 }
-
+.code,
 code {
     font-size: 16px;
+    font-family: monospace;
 }
 
 fieldset {
@@ -761,3 +762,12 @@ fieldset.vcard{
     white-space: nowrap;
     display: inline flow-root;
 }
+
+.parent_selector > ul {
+	position: absolute;
+	top: 120px;
+	left: 0;
+	right: 0;
+	bottom: 0;
+	overflow: auto;
+}