rename skeuo to desktop

frontend/src/DesktopWorkspace.css

@@ -6,6 +6,20 @@
   min-height: 0;
 }
 
+.skeuo-item {
+  position: absolute;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  width: auto;
+  cursor: grab;
+  touch-action: none;
+  transform-origin: center center;
+  transition: box-shadow 0.16s ease;
+  outline: none;
+  will-change: transform;
+}
+
 .skeuo-shell {
   flex: 1;
   display: flex;
@@ -33,28 +47,14 @@
   font-size: 0.95rem;
 }
 
-.skeuo-item {
-  position: absolute;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  width: auto;
-  cursor: grab;
-  touch-action: none;
-  transform-origin: center center;
-  transition: transform 0.28s ease, box-shadow 0.16s ease;
-  outline: none;
-  will-change: transform;
-}
+
 
 .skeuo-item__body {
-  position: absolute;
-  top: 50%;
-  left: 50%;
-  transform: translate(-50%, -50%);
   display: flex;
   flex-direction: column;
   align-items: center;
+  justify-content: center;
+  flex-grow: 1;
 }
 
 .skeuo-item:focus-visible {
@@ -68,8 +68,8 @@
 }
 
 .skeuo-item.is-tag-target .skeuo-item__card {
-  outline: 1em dashed var(--accent);
-  outline-offset: 1.41em;
+  outline: 0.35rem dashed var(--accent);
+  outline-offset: 0.35rem;
 }
 
 .skeuo-item.is-tag-pending .skeuo-item__card {
@@ -125,12 +125,12 @@
 
 .skeuo-card__nav {
   position: absolute;
-  bottom: calc(3em * 0.707 * var(--nav-scale));
+  bottom: 1.8rem;
   left: 50%;
-  transform: translateX(-50%) scale(calc(0.707 * var(--nav-scale, 1)));
+  transform: translateX(-50%);
   transform-origin: center;
   display: flex;
-  gap: 2rem;
+  gap: 1.5rem;
   opacity: 0;
   pointer-events: none;
   transition: opacity 0.2s ease;
@@ -145,10 +145,10 @@
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  width: 3.3em;
-  height: 3.3em;
-  padding: 0.36em;
-  border-radius: 3.3em;
+  width: 2.4em;
+  height: 2.4em;
+  padding: 0.25em;
+  border-radius: 50%;
   border: none;
   background: rgba(0, 0, 0, 0.55);
   color: #fff;
@@ -194,9 +194,17 @@ body.skeuo-cursor-remove * {
   display: flex;
   align-items: center;
   justify-content: center;
-  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.24);
+  width: 100%;
+  height: 100%;
+  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
   overflow: hidden;
-  --nav-scale: 1;
+}
+
+.skeuo-item__card img {
+  width: 100%;
+  height: 100%;
+  object-fit: contain;
+  display: block;
 }
 
 .skeuo-item__card--empty {
@@ -238,6 +246,7 @@ body.skeuo-cursor-remove * {
   color: #3b3b3b;
   max-width: 90%;
   overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
+  overflow-wrap: anywhere;
+  word-break: break-word;
+  white-space: normal;
 }

frontend/src/desktop/context.js

@@ -0,0 +1,17 @@
+import React, { createContext, useContext } from 'react';
+
+const DesktopContext = createContext(null);
+
+export const DesktopProvider = ({ value, children }) => (
+  <DesktopContext.Provider value={value}>{children}</DesktopContext.Provider>
+);
+
+export const useDesktopContext = () => {
+  const context = useContext(DesktopContext);
+  if (!context) {
+    throw new Error('useDesktopContext must be used within a DesktopProvider');
+  }
+  return context;
+};
+
+export default DesktopContext;

frontend/src/desktop/events.js

@@ -0,0 +1,17 @@
+export const preventAll = (event) => {
+  if (!event) {
+    return;
+  }
+  try {
+    event.preventDefault();
+  } catch (
+    // eslint-disable-next-line no-empty
+    error
+  ) {}
+  try {
+    event.stopPropagation();
+  } catch (
+    // eslint-disable-next-line no-empty
+    error
+  ) {}
+};

frontend/src/desktop/math.js

@@ -0,0 +1,8 @@
+export const clamp = (value, min, max) => {
+  if (value < min) return min;
+  if (value > max) return max;
+  return value;
+};
+
+export const formatTransform = (x, y, rotation = 0, scale = 1) =>
+  `translate3d(${x}px, ${y}px, 0) rotate(${rotation}deg) scale(${scale})`;

frontend/src/desktop/useDocumentDrag.js

@@ -0,0 +1,248 @@
+import { useCallback, useRef } from 'react';
+import { useDesktopContext } from './context';
+import { preventAll } from './events';
+import { clamp, formatTransform } from './math';
+
+const useDocumentDrag = () => {
+  const {
+    layoutRef,
+    itemRefs,
+    documentLookup,
+    ensureDocumentSize,
+    resolveBaseMetrics,
+    bringToFront,
+    setDraggingId,
+    syncLayoutSnapshot,
+    canvasSize,
+    openOverlayForDoc,
+    recalcVisibleDocIds,
+    settings,
+  } = useDesktopContext();
+
+  const dragStateRef = useRef(null);
+  const { canvasPadding, defaultCanvasWidth, defaultCanvasHeight, debugDrag } = settings;
+
+  const finishDrag = useCallback(
+    (pointerId) => {
+      const state = dragStateRef.current;
+      if (!state || state.pointerId !== pointerId) {
+        return;
+      }
+      const capturedTarget = state.capturedTarget;
+      if (capturedTarget && typeof capturedTarget.releasePointerCapture === 'function') {
+        try {
+          capturedTarget.releasePointerCapture(pointerId);
+        } catch (
+          // eslint-disable-next-line no-empty
+          error
+        ) {}
+      }
+      dragStateRef.current = null;
+      setDraggingId((current) => (current === state.docId ? null : current));
+      syncLayoutSnapshot();
+    },
+    [setDraggingId, syncLayoutSnapshot],
+  );
+
+  const handlePointerDown = useCallback(
+    (event, docId) => {
+      if (debugDrag) {
+        console.log(
+          '[skeuo] handlePointerDown fired for doc',
+          docId,
+          'button',
+          event.button,
+          'pointerType',
+          event.pointerType,
+          'pointerId',
+          event.pointerId,
+        );
+      }
+      preventAll(event);
+      const entry = layoutRef.current.get(docId) || null;
+      const docKey = docId != null ? String(docId) : null;
+      const doc = docKey ? documentLookup.get(docKey) : null;
+      const { width: docWidth, height: docHeight } = ensureDocumentSize(doc);
+      const { baseScale } = resolveBaseMetrics(doc, docWidth, docHeight);
+      const normalizedBaseScale =
+        Number.isFinite(baseScale) && baseScale > 0 ? baseScale : 1;
+      const defaultCenterX = canvasPadding + docWidth / 2;
+      const defaultCenterY = canvasPadding + docHeight / 2;
+      const centerX = typeof entry?.centerX === 'number' ? entry.centerX : defaultCenterX;
+      const centerY = typeof entry?.centerY === 'number' ? entry.centerY : defaultCenterY;
+
+      if (entry && (entry.centerX !== centerX || entry.centerY !== centerY)) {
+        layoutRef.current.set(docId, { ...entry, centerX, centerY });
+      }
+
+      bringToFront(docId);
+      const capturedTarget = event.currentTarget instanceof HTMLElement ? event.currentTarget : null;
+      if (capturedTarget && typeof capturedTarget.setPointerCapture === 'function') {
+        try {
+          capturedTarget.setPointerCapture(event.pointerId);
+        } catch (
+          // eslint-disable-next-line no-empty
+          error
+        ) {}
+      }
+      dragStateRef.current = {
+        docId,
+        pointerId: event.pointerId,
+        originCenterX: centerX,
+        originCenterY: centerY,
+        startX: event.clientX,
+        startY: event.clientY,
+        rotation: entry?.rotation ?? 0,
+        moved: false,
+        locked: false,
+        width: docWidth,
+        height: docHeight,
+        dragScale: 1,
+        baseScale: normalizedBaseScale,
+        capturedTarget,
+      };
+      setDraggingId(docId);
+    },
+    [
+      bringToFront,
+      canvasPadding,
+      documentLookup,
+      ensureDocumentSize,
+      layoutRef,
+      resolveBaseMetrics,
+      setDraggingId,
+      debugDrag,
+    ],
+  );
+
+  const handlePointerMove = useCallback(
+    (event) => {
+      const state = dragStateRef.current;
+      if (!state) {
+        if (debugDrag) {
+          console.log('[skeuo] handlePointerMove: no drag state for pointer', event.pointerId);
+        }
+        return;
+      }
+      if (state.pointerId !== event.pointerId) {
+        if (debugDrag) {
+          console.log(
+            '[skeuo] handlePointerMove: pointer mismatch expected',
+            state.pointerId,
+            'got',
+            event.pointerId,
+          );
+        }
+        return;
+      }
+      preventAll(event);
+      if (state.locked) {
+        if (debugDrag) {
+          console.log('[skeuo] handlePointerMove: locked drag for doc', state.docId);
+        }
+        return;
+      }
+
+      const entry = layoutRef.current.get(state.docId);
+      if (!entry) {
+        return;
+      }
+
+      const deltaX = event.clientX - state.startX;
+      const deltaY = event.clientY - state.startY;
+      const nextCenterX = state.originCenterX + deltaX;
+      const nextCenterY = state.originCenterY + deltaY;
+
+      const docWidth = state.width;
+      const docHeight = state.height;
+      const halfWidth = docWidth / 2;
+      const halfHeight = docHeight / 2;
+      const canvasWidth = canvasSize.width || defaultCanvasWidth;
+      const canvasHeight = canvasSize.height || defaultCanvasHeight;
+      const minCenterX = canvasPadding + halfWidth;
+      const maxCenterX = Math.max(minCenterX, canvasWidth - canvasPadding - halfWidth);
+      const minCenterY = canvasPadding + halfHeight;
+      const maxCenterY = Math.max(minCenterY, canvasHeight - canvasPadding - halfHeight);
+      const clampedCenterX = clamp(nextCenterX, minCenterX, maxCenterX);
+      const clampedCenterY = clamp(nextCenterY, minCenterY, maxCenterY);
+
+      const prevCenterX = typeof entry.centerX === 'number' ? entry.centerX : state.originCenterX;
+      const prevCenterY = typeof entry.centerY === 'number' ? entry.centerY : state.originCenterY;
+      if (Math.abs(clampedCenterX - prevCenterX) < 0.5 && Math.abs(clampedCenterY - prevCenterY) < 0.5) {
+        if (debugDrag) {
+          console.log('[skeuo] handlePointerMove: movement under threshold for doc', state.docId);
+        }
+        return;
+      }
+
+      const updated = { ...entry, centerX: clampedCenterX, centerY: clampedCenterY };
+      layoutRef.current.set(state.docId, updated);
+
+      const node = itemRefs.current.get(state.docId);
+      if (node) {
+        node.style.transform = formatTransform(
+          clampedCenterX - state.width / 2,
+          clampedCenterY - state.height / 2,
+          state.rotation,
+          state.dragScale || 1,
+        );
+      }
+      state.moved = true;
+      if (debugDrag) {
+        console.log('[skeuo] handlePointerMove: moved doc', state.docId, 'to', clampedCenterX, clampedCenterY);
+      }
+      recalcVisibleDocIds();
+    },
+    [
+      canvasPadding,
+      canvasSize.height,
+      canvasSize.width,
+      defaultCanvasHeight,
+      defaultCanvasWidth,
+      itemRefs,
+      layoutRef,
+      recalcVisibleDocIds,
+      debugDrag,
+    ],
+  );
+
+  const handlePointerUp = useCallback(
+    (event) => {
+      const state = dragStateRef.current;
+      if (state && state.pointerId === event.pointerId) {
+        const moved = Boolean(state.moved);
+        const docId = state.docId;
+        const shouldOpen = !moved && event.detail >= 2;
+        finishDrag(event.pointerId);
+        if (shouldOpen) {
+          const originInfo = {
+            rotation: state.rotation || 0,
+            scale: state.baseScale || 1,
+            width: state.width,
+            height: state.height,
+          };
+          openOverlayForDoc(docId, originInfo);
+        }
+        return;
+      }
+      finishDrag(event.pointerId);
+    },
+    [finishDrag, openOverlayForDoc],
+  );
+
+  const handlePointerCancel = useCallback(
+    (event) => {
+      finishDrag(event.pointerId);
+    },
+    [finishDrag],
+  );
+
+  return {
+    handlePointerDown,
+    handlePointerMove,
+    handlePointerUp,
+    handlePointerCancel,
+  };
+};
+
+export default useDocumentDrag;

frontend/src/index.jsx

@@ -32,7 +32,7 @@ import Sidebar from './sidebar/Sidebar';
 import { ChevronsRightIcon } from './ui/icons';
 import { createDocumentsSurface } from './documents/DocumentsTable';
 import { createPreviewSurface } from './preview/PreviewWorkspace';
-import { createSkeuomorphicSurface } from './skeuomorphic_ws';
+import { createDesktopSurface } from './DesktopWorkspace';
 import { AppShellContext, useAppShell } from './appShellContext';
 
 const runtimeApiBase =
@@ -5526,7 +5526,7 @@ const DocumentsRoute = () => {
     if (!isWorkspace) {
       return null;
     }
-    return createSkeuomorphicSurface({
+    return createDesktopSurface({
       workspaceProps: skeuoWorkspaceProps,
       renderSidebarToggle,
     });

frontend/src/styles.css

@@ -14,11 +14,10 @@
   --border: oklch(0.92 0.002 calc(270deg + var(--warmth)));
 
   /* --- Accent (primary) --- */
-  --accent: oklch(0.61 0.20 calc(260deg + var(--warmth)));
-  --accent-hover: oklch(0.70 0.18 calc(260deg + var(--warmth)));
+  --accent: oklch(0.61 0.2 calc(250deg + var(--warmth)));
+  --accent-hover: oklch(0.70 0.02 calc(100deg + var(--warmth)));
   --on-accent: oklch(1 0 0);
 
-  /* --- Derived accent states --- */
   --accent-soft: color-mix(in oklch, var(--accent) 12%, transparent);
   --accent-elevated: color-mix(in oklch, var(--accent) 16%, transparent);
   --accent-elevated-strong: color-mix(in oklch, var(--accent) 22%, transparent);
@@ -27,6 +26,12 @@
   --accent-focus: color-mix(in oklch, var(--accent) 85%, transparent);
   --surface-overlay: color-mix(in oklch, white 82%, transparent);
 
+  /* -- Selection --- */
+  --selection: oklch(0.61 0.01 calc(100deg + var(--warmth)));
+
+  /* --- Derived accent states --- */
+  --selection-soft: color-mix(in oklch, var(--selection) 12%, transparent);
+
   /* --- Shadows & overlays --- */
   --shadow-faint: color-mix(in oklch, black 6%, transparent);
   --shadow-soft: color-mix(in oklch, black 12%, transparent);
@@ -46,11 +51,12 @@
   --danger-subtle: color-mix(in oklch, var(--danger) 8%, transparent);
 
   /* --- Explorer states --- */
-  --row-hover-bg: color-mix(in oklch, var(--accent) 6%, transparent);
-  --row-active-bg: color-mix(in oklch, var(--accent) 12%, transparent);
-  --sidebar-hover-bg: color-mix(in oklch, var(--accent) 8%, transparent);
-  --sidebar-active-bg: color-mix(in oklch, var(--accent) 16%, transparent);
+  --row-hover-bg: color-mix(in oklch, var(--selection) 6%, transparent);
+  --row-active-bg: color-mix(in oklch, var(--selection) 12%, transparent);
+  --sidebar-hover-bg: color-mix(in oklch, var(--selection) 8%, transparent);
+  --sidebar-active-bg: color-mix(in oklch, var(--selection) 16%, transparent);
   --selection-ring: oklch(0.78 0.16 calc(260deg + var(--warmth)));
+  --sidebar-active-pill-border: color-mix(in oklch, var(--accent) 64%, transparent);
 
   font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
   font-size: 15px;
@@ -1408,7 +1414,7 @@ button.danger:hover:not([disabled]) {
 .sidebar-tag-pill:hover {
   transform: none;
   box-shadow: 0 2px 6px rgba(15, 23, 42, 0.16);
-  border-color: var(--accent-soft, rgba(59, 130, 246, 0.35));
+  border-color: var(--accent-soft);
 }
 
 .sidebar-tag-pill:focus-visible {
@@ -1417,8 +1423,8 @@ button.danger:hover:not([disabled]) {
 }
 
 .sidebar-tag-pill.active {
-  border-color: var(--accent);
-  box-shadow: 0 0 0 1.5px var(--accent);
+  border-color: var(--sidebar-active-pill-border);
+  box-shadow: 0 0 0 1.5px var(--sidebar-active-pill-border);
 }
 
 .sidebar-tag-cloud--has-active .sidebar-tag-pill:not(.active) {
@@ -1458,8 +1464,8 @@ button.danger:hover:not([disabled]) {
 }
 
 .sidebar-correspondent-item.active {
-  background: var(--accent-soft, rgba(59, 130, 246, 0.18));
-  box-shadow: 0 0 0 1px var(--accent-soft, rgba(59, 130, 246, 0.24));
+  background: var(--sidebar-active-bg, rgba(59, 130, 246, 0.18));
+  box-shadow: 0 0 0 1px var(--sidebar-active-bg, rgba(59, 130, 246, 0.24));
   color: var(--fg);
 }
 
@@ -1703,7 +1709,7 @@ button.danger:hover:not([disabled]) {
 }
 
 .documents-panel tbody tr.document.selected {
-  background: var(--accent-soft);
+  background: var(--selection-soft);
   box-shadow: inset 2px 0 0 var(--accent-outline-strong);
 }