Improve working with background nodes and new nodes

.changeset/proud-donkeys-shave.md

@@ -0,0 +1,18 @@
+---
+"@learningmap/learningmap": minor
+---
+
+Make background nodes easier to work with and new nodes easier to see
+
+- Add a layers panel listing every node, so nodes covered by another one can still be reached, selected, locked and reordered
+- Add bring to front / forward / backward / send to back controls to the node panel and the multi selection panel
+- Add per node locking, which stops a background image from being dragged or selected by accident while it can still be edited from the layers panel
+- Alt-click cycles through the nodes stacked under the cursor
+- Selected nodes are lifted above the stack so their resize handles stay reachable
+- Fix text nodes defaulting to a near-invisible light grey; the default now follows the background colour
+- Empty image and text nodes render a visible placeholder and image nodes start at a usable size
+- Fix nodes added with a keyboard shortcut getting no zIndex, which put them below every other node
+- New nodes are placed inside the visible canvas, cascade instead of stacking on each other, and are selected on creation
+- Text nodes can be edited in place with a double-click
+- Fix the clickable area of a rotated text node not matching what is drawn
+- Fix undo, copy, paste and delete being disabled whenever a node was selected

packages/learningmap/src/ColorSelector.tsx

@@ -20,7 +20,7 @@ export const ColorSelector: React.FC<ColorSelectorProps> = ({ value, onChange, l
         type="text"
         value={value}
         onChange={e => onChange(e.target.value)}
-        placeholder="#e5e7eb"
+        placeholder="#111827"
         style={{ width: 100 }}
       />
     </div>

packages/learningmap/src/EditorCanvas.tsx

@@ -11,7 +11,10 @@ import { MultiNodePanel } from "./MultiNodePanel";
 import { EditorPanel } from "./EditorPanel";
 import { EdgePanel } from "./EdgePanel";
 import { SettingsPanel } from "./SettingsPanel";
+import { LayersPanel } from "./LayersPanel";
 import { NodeData } from "./types";
+import { getNodesAtPosition } from "./zIndexHelper";
+import { getReadableTextColor } from "./colorHelper";
 
 const nodeTypes = {
   topic: TopicNode,
@@ -39,6 +42,7 @@ export const EditorCanvas = memo(() => {
   const onConnect = useEditorStore(state => state.onConnect);
   const setSelectedNodeIds = useEditorStore(state => state.setSelectedNodeIds);
   const setSelectedNodeId = useEditorStore(state => state.setSelectedNodeId);
+  const selectNode = useEditorStore(state => state.selectNode);
   const setSelectedEdge = useEditorStore(state => state.setSelectedEdge);
   const setDrawerOpen = useEditorStore(state => state.setDrawerOpen);
   const setEdgeDrawerOpen = useEditorStore(state => state.setEdgeDrawerOpen);
@@ -71,20 +75,42 @@ export const EditorCanvas = memo(() => {
     canRedo: state.futureStates.length > 0,
   }));
 
-  const handleNodeClick = useCallback((_: any, node: Node<NodeData>) => {
+  /**
+   * Picks the next node underneath the cursor, so nodes covered by another one
+   * can still be reached. Returns the clicked node when there is nothing to
+   * cycle through.
+   */
+  const cycleStackedNode = useCallback((event: React.MouseEvent, clickedNodeId?: string) => {
+    const { nodes: currentNodes, selectedNodeId: currentSelectedNodeId } = useEditorStore.getState();
+    const point = screenToFlowPosition({ x: event.clientX, y: event.clientY });
+    const stack = getNodesAtPosition(currentNodes, point);
+
+    if (stack.length === 0) return null;
+
+    const activeId = currentSelectedNodeId ?? clickedNodeId;
+    const activeIndex = stack.findIndex(n => n.id === activeId);
+    return stack[(activeIndex + 1) % stack.length];
+  }, [screenToFlowPosition]);
+
+  const handleNodeClick = useCallback((event: React.MouseEvent, node: Node<NodeData>) => {
     // Execute picker callback when in picker mode
     if (pickerMode) {
       const executePickerCallback = useEditorStore.getState().executePickerCallback;
       executePickerCallback(node.id);
       return;
     }
-
-    setSelectedNodeId(node.id);
-    setDrawerOpen(true);
-    setSelectedEdge(null);
-    setEdgeDrawerOpen(false);
-    setSettingsDrawerOpen(false);
-  }, [setSelectedNodeId, setDrawerOpen, setSelectedEdge, setEdgeDrawerOpen, setSettingsDrawerOpen, pickerMode]);
+
+    // Ctrl/Cmd-click adds to the selection and Shift-drag draws a selection
+    // box. Both are handled by React Flow, and taking over here would clear
+    // the other selected nodes.
+    if (event.ctrlKey || event.metaKey || event.shiftKey) {
+      return;
+    }
+
+    const target = event.altKey ? cycleStackedNode(event, node.id) ?? node : node;
+
+    selectNode(target.id, true);
+  }, [selectNode, pickerMode, cycleStackedNode]);
 
   const handleEdgeClick = useCallback((_: any, edge: Edge) => {
     setSelectedEdge(edge);
@@ -99,11 +125,16 @@ export const EditorCanvas = memo(() => {
       // Only select nodes, not edges (as per requirement #6)
       setSelectedNodeIds(selectedNodes.map(n => n.id));
 
-      // Close the node panel if no nodes are selected and it's currently open
-      if (selectedNodes.length === 0) {
-        setDrawerOpen(false);
-        setSelectedNodeId(null);
-      }
+      if (selectedNodes.length > 0) return;
+
+      // Locked nodes are never selected on the canvas but can still be edited
+      // through the panel, so keep the panel open for them.
+      const state = useEditorStore.getState();
+      const activeNode = state.nodes.find(n => n.id === state.selectedNodeId);
+      if (activeNode?.data?.locked) return;
+
+      setDrawerOpen(false);
+      setSelectedNodeId(null);
     },
     [setSelectedNodeIds, setDrawerOpen, setSelectedNodeId]
   );
@@ -115,13 +146,23 @@ export const EditorCanvas = memo(() => {
   }, [screenToFlowPosition, setLastMousePosition]);
 
   // Close panels when clicking on empty canvas
-  const handlePaneClick = useCallback(() => {
+  const handlePaneClick = useCallback((event: React.MouseEvent) => {
+    // Locked nodes do not receive clicks, so alt-clicking "through" them lands
+    // on the pane. Cycle from here as well to keep them reachable.
+    if (event.altKey && !pickerMode) {
+      const target = cycleStackedNode(event);
+      if (target) {
+        selectNode(target.id, true);
+        return;
+      }
+    }
+
     setDrawerOpen(false);
     setSelectedNodeId(null);
     setEdgeDrawerOpen(false);
     setSelectedEdge(null);
     setSettingsDrawerOpen(false);
-  }, [setDrawerOpen, setSelectedNodeId, setEdgeDrawerOpen, setSelectedEdge, setSettingsDrawerOpen]);
+  }, [setDrawerOpen, setSelectedNodeId, setEdgeDrawerOpen, setSelectedEdge, setSettingsDrawerOpen, cycleStackedNode, selectNode, pickerMode]);
 
   const defaultEdgeOptions = {
     animated: false,
@@ -139,6 +180,8 @@ export const EditorCanvas = memo(() => {
       style={{
         backgroundColor: settings?.background?.color || "#ffffff",
         cursor: pickerMode ? "crosshair" : "default",
+        // Default text colour for text nodes that have none of their own.
+        ["--learningmap-text-default" as any]: getReadableTextColor(settings?.background?.color),
       }}
       onMouseMove={handleMouseMove}
     >
@@ -159,7 +202,9 @@ export const EditorCanvas = memo(() => {
         proOptions={{ hideAttribution: true }}
         defaultEdgeOptions={defaultEdgeOptions}
         nodesDraggable={!pickerMode}
-        elevateNodesOnSelect={false}
+        // Selected nodes are lifted above the stack so their resize handles
+        // stay reachable even when the node itself sits in the background.
+        elevateNodesOnSelect={true}
         nodesConnectable={!pickerMode}
         selectNodesOnDrag={false}
         elementsSelectable={!pickerMode}
@@ -178,6 +223,7 @@ export const EditorCanvas = memo(() => {
           </ControlButton>
         </Controls>
         {selectedNodeIds.length > 1 && <MultiNodePanel />}
+        <LayersPanel />
         <EditorPanel />
         <EdgePanel />
         <SettingsPanel />

packages/learningmap/src/EditorDialogs.tsx

@@ -50,6 +50,8 @@ export const EditorDialogs = memo(({ jsonStore = "https://json.openpatch.org" }:
     { action: t.shortcuts.togglePreviewMode, shortcut: "Ctrl+P" },
     { action: t.shortcuts.toggleDebugMode, shortcut: "Ctrl+D" },
     { action: t.shortcuts.selectMultipleNodes, shortcut: "Ctrl+Click or Shift+Drag" },
+    { action: t.shortcuts.cycleStackedNodes, shortcut: "Alt+Click" },
+    { action: t.shortcuts.editTextInline, shortcut: "Double-click" },
     { action: t.shortcuts.selectAllNodes, shortcut: "Ctrl+A" },
     { action: t.shortcuts.showHelp, shortcut: "Ctrl+? or Help Button" },
     { action: t.shortcuts.save, shortcut: "Ctrl+S" },

packages/learningmap/src/EditorDrawerTextContent.tsx

@@ -3,6 +3,7 @@ import { TextNodeData } from "./types";
 import { ColorSelector } from "./ColorSelector";
 import { RotationInput } from "./RotationInput";
 import { useEditorStore } from "./editorStore";
+import { getReadableTextColor } from "./colorHelper";
 
 interface Props {
   localNode: Node<TextNodeData>;
@@ -11,8 +12,12 @@ interface Props {
 
 export function EditorDrawerTextContent({ localNode, handleFieldChange }: Props) {
   const getTranslationsFromStore = useEditorStore(state => state.getTranslations);
+  const backgroundColor = useEditorStore(state => state.settings?.background?.color);
   const t = getTranslationsFromStore();
-
+
+  // Matches the default the text node renders with when no colour is set.
+  const defaultColor = getReadableTextColor(backgroundColor);
+
   return (
     <div className="panel-content">
       <div className="form-group">
@@ -35,7 +40,7 @@ export function EditorDrawerTextContent({ localNode, handleFieldChange }: Props)
       <div className="form-group">
         <ColorSelector
           label={t.color}
-          value={localNode.data.color || "#e5e7eb"}
+          value={localNode.data.color || defaultColor}
           onChange={color => handleFieldChange("color", color)}
         />
       </div>

packages/learningmap/src/EditorPanel.tsx

@@ -8,6 +8,7 @@ import { EditorDrawerTextContent } from "./EditorDrawerTextContent";
 import { Completion, NodeData } from "./types";
 import { useEditorStore } from "./editorStore";
 import { NodePickerInput } from "./NodePickerInput";
+import { LayerControls } from "./LayerControls";
 
 export const EditorPanel: React.FC = () => {
   // Get node and all nodes from store
@@ -296,6 +297,7 @@ export const EditorPanel: React.FC = () => {
     <Panel position="center-right" className="editor-panel">
       <div className="panel-inner">
         {content}
+        <LayerControls nodeIds={[node.id]} />
         <div className="panel-footer">
           <button onClick={onCopy} className="secondary-button">
             <Copy size={16} /> {t.copyNode}

packages/learningmap/src/EditorToolbar.tsx

@@ -1,12 +1,11 @@
 import React from "react";
 import { Menu, MenuButton, MenuDivider, MenuItem, SubMenu } from "@szhsin/react-menu";
-import { Plus, Bug, Settings, Eye, Menu as MenuI, FolderOpen, Download, ImageDown, ExternalLink, Share2, RotateCcw } from "lucide-react";
+import { Plus, Bug, Settings, Eye, Menu as MenuI, FolderOpen, Download, ImageDown, ExternalLink, Share2, RotateCcw, Layers } from "lucide-react";
 import { useEditorStore } from "./editorStore";
-import { Node, useReactFlow } from "@xyflow/react";
-import { NodeData } from "./types";
+import { useReactFlow } from "@xyflow/react";
 import { useJsonStore } from "./useJsonStore";
 import { useFileOperations } from "./useFileOperations";
-import { getZIndexForNodeType } from "./zIndexHelper";
+import { createNode, CreatableNodeType } from "./nodeFactory";
 
 interface EditorToolbarProps {
   disableSharing?: boolean;
@@ -33,6 +32,8 @@ export const EditorToolbar: React.FC<EditorToolbarProps> = ({
   const setShowCompletionOptional = useEditorStore(state => state.setShowCompletionOptional);
   const setShowUnlockAfter = useEditorStore(state => state.setShowUnlockAfter);
   const addNode = useEditorStore(state => state.addNode);
+  const layersPanelOpen = useEditorStore(state => state.layersPanelOpen);
+  const setLayersPanelOpen = useEditorStore(state => state.setLayersPanelOpen);
   const setSettingsDrawerOpen = useEditorStore(state => state.setSettingsDrawerOpen);
   const setDrawerOpen = useEditorStore(state => state.setDrawerOpen);
   const setEdgeDrawerOpen = useEditorStore(state => state.setEdgeDrawerOpen);
@@ -52,20 +53,15 @@ export const EditorToolbar: React.FC<EditorToolbarProps> = ({
   const onSetShowCompletionOptional = (checked: boolean) => setShowCompletionOptional(checked);
   const onSetShowUnlockAfter = (checked: boolean) => setShowUnlockAfter(checked);
 
-  const onAddNewNode = (type: "task" | "topic" | "image" | "text") => {
-    // Position new nodes at the center of the current viewport
-    const position = screenToFlowPosition({ x: window.innerWidth / 2, y: window.innerHeight / 2 });
-    const newNode: Node<NodeData> = {
-      id: `node-${Date.now()}`,
-      type,
-      position,
-      zIndex: getZIndexForNodeType(type),
-      data: {
-        label: type === "task" ? t.newTask : type === "topic" ? t.newTopic : type,
-        state: "unlocked",
-      },
-    };
-    addNode(newNode);
+  const onAddNewNode = (type: CreatableNodeType) => {
+    addNode(
+      createNode({
+        type,
+        nodes: useEditorStore.getState().nodes,
+        t,
+        screenToFlowPosition,
+      }),
+    );
   };
 
   const onOpenSettingsDrawer = () => {
@@ -104,6 +100,15 @@ export const EditorToolbar: React.FC<EditorToolbarProps> = ({
             <span style={{ marginLeft: 'auto', paddingLeft: '16px', color: '#9ca3af', fontSize: '0.875rem' }}>Ctrl+4</span>
           </MenuItem>
         </Menu>
+        <button
+          disabled={previewMode}
+          onClick={() => setLayersPanelOpen(!layersPanelOpen)}
+          className={`toolbar-button ${layersPanelOpen ? "active" : ""}`}
+          title={t.layers}
+          aria-pressed={layersPanelOpen}
+        >
+          <Layers size={16} /> <span className="toolbar-label">{t.layers}</span>
+        </button>
         <button disabled={previewMode} onClick={onOpenSettingsDrawer} className="toolbar-button">
           <Settings size={16} /> <span className="toolbar-label">{t.settings}</span>
         </button>