PR_26179_CHARLIE_035-sprites-frame-editing

assets/toolbox/sprites/js/index.js

@@ -1,4 +1,5 @@
 const DEFAULT_GRID_SIZE = 16;
+const DEFAULT_FRAME_DURATION_MS = 120;
 const SUPPORTED_GRID_SIZES = Object.freeze([16, 32]);
 const SUPPORTED_ZOOM_LEVELS = Object.freeze([1, 2, 4]);
 const SHAPE_TOOLS = Object.freeze(["line", "rectangle", "circle"]);
@@ -12,11 +13,22 @@ const EDITOR_COLOR_CSS_VARIABLES = Object.freeze({
   orange: "--molten-orange",
 });
 
+function createEditorFrame(frameNumber, paintedPixels = new Map()) {
+  return {
+    durationMs: DEFAULT_FRAME_DURATION_MS,
+    frameNumber,
+    paintedPixels: new Map(paintedPixels),
+  };
+}
+
+const initialFrame = createEditorFrame(1);
 const editorState = {
   activeTool: "pencil",
   activeColor: "ink",
+  activeFrameIndex: 0,
+  frames: [initialFrame],
   gridSize: DEFAULT_GRID_SIZE,
-  paintedPixels: new Map(),
+  paintedPixels: initialFrame.paintedPixels,
   shapeAnchor: null,
   zoomLevel: 1,
 };
@@ -48,8 +60,23 @@ function isInsideGrid(row, column) {
   return row >= 1 && row <= editorState.gridSize && column >= 1 && column <= editorState.gridSize;
 }
 
+function currentFrame() {
+  return editorState.frames[editorState.activeFrameIndex] || editorState.frames[0];
+}
+
+function syncActiveFramePixels() {
+  editorState.paintedPixels = currentFrame().paintedPixels;
+}
+
+function renumberFrames() {
+  editorState.frames.forEach((frame, index) => {
+    frame.frameNumber = index + 1;
+  });
+}
+
 function stateSnapshot() {
   return {
+    activeFrameIndex: editorState.activeFrameIndex,
     gridSize: editorState.gridSize,
     paintedPixels: Array.from(editorState.paintedPixels.entries()),
   };
@@ -144,7 +171,10 @@ function applyPaintedPixelsToGrid() {
 
 function applySnapshot(snapshot) {
   setGridSize(snapshot.gridSize, { recordHistory: false });
-  editorState.paintedPixels = new Map(snapshot.paintedPixels);
+  const targetIndex = Math.min(snapshot.activeFrameIndex ?? editorState.activeFrameIndex, editorState.frames.length - 1);
+  editorState.activeFrameIndex = Math.max(0, targetIndex);
+  currentFrame().paintedPixels = new Map(snapshot.paintedPixels);
+  syncActiveFramePixels();
   editorState.shapeAnchor = null;
   applyPaintedPixelsToGrid();
   updateDraftStatus();
@@ -446,14 +476,86 @@ function renderPreview() {
 }
 
 function renderFrameStrip() {
-  const thumbnail = document.querySelector("[data-sprites-frame-thumbnail='0']");
+  const strip = document.querySelector("[data-sprites-frame-strip]");
   const status = document.querySelector("[data-sprites-frame-status]");
-  if (thumbnail) {
-    renderPixelsToCanvas(thumbnail, editorState.paintedPixels, editorState.gridSize);
+  if (strip) {
+    strip.replaceChildren();
+    editorState.frames.forEach((frame, index) => {
+      const button = document.createElement("button");
+      button.className = `sprite-frame-card${index === editorState.activeFrameIndex ? " is-active" : ""}`;
+      button.type = "button";
+      button.dataset.spritesFrameCard = String(index);
+      button.setAttribute("aria-pressed", String(index === editorState.activeFrameIndex));
+      const title = document.createElement("span");
+      title.className = "sprite-frame-card-title";
+      title.textContent = `Frame ${frame.frameNumber}`;
+      const thumbnail = document.createElement("canvas");
+      thumbnail.className = "sprite-frame-thumbnail";
+      thumbnail.width = 48;
+      thumbnail.height = 48;
+      thumbnail.setAttribute("aria-label", `Frame ${frame.frameNumber} thumbnail`);
+      thumbnail.dataset.spritesFrameThumbnail = String(index);
+      const meta = document.createElement("span");
+      meta.className = "sprite-frame-card-meta";
+      meta.textContent = `${frame.paintedPixels.size} pixel${frame.paintedPixels.size === 1 ? "" : "s"}`;
+      button.append(title, thumbnail, meta);
+      button.addEventListener("click", () => selectFrame(index));
+      strip.append(button);
+      renderPixelsToCanvas(thumbnail, frame.paintedPixels, editorState.gridSize);
+    });
   }
   if (status) {
-    status.textContent = `Frame strip: 1 unsaved frame. Current editor draft has ${editorState.paintedPixels.size} painted pixel${editorState.paintedPixels.size === 1 ? "" : "s"}.`;
+    status.textContent = `Frame strip: ${editorState.frames.length} unsaved frame${editorState.frames.length === 1 ? "" : "s"}. Frame ${currentFrame().frameNumber} is selected with ${editorState.paintedPixels.size} painted pixel${editorState.paintedPixels.size === 1 ? "" : "s"}.`;
+  }
+  const deleteButton = document.querySelector("[data-sprites-delete-frame]");
+  if (deleteButton) {
+    deleteButton.disabled = editorState.frames.length <= 1;
+  }
+}
+
+function selectFrame(index) {
+  if (index < 0 || index >= editorState.frames.length) {
+    return;
+  }
+  editorState.activeFrameIndex = index;
+  syncActiveFramePixels();
+  editorState.shapeAnchor = null;
+  applyPaintedPixelsToGrid();
+  updateDraftStatus();
+  updateHistoryControls();
+}
+
+function addFrame() {
+  editorState.frames.push(createEditorFrame(editorState.frames.length + 1));
+  editorState.activeFrameIndex = editorState.frames.length - 1;
+  syncActiveFramePixels();
+  editorState.shapeAnchor = null;
+  updateDraftStatus();
+  updateHistoryControls();
+}
+
+function duplicateFrame() {
+  const duplicate = createEditorFrame(editorState.frames.length + 1, editorState.paintedPixels);
+  editorState.frames.push(duplicate);
+  editorState.activeFrameIndex = editorState.frames.length - 1;
+  syncActiveFramePixels();
+  editorState.shapeAnchor = null;
+  updateDraftStatus();
+  updateHistoryControls();
+}
+
+function deleteFrame() {
+  if (editorState.frames.length <= 1) {
+    return;
   }
+  editorState.frames.splice(editorState.activeFrameIndex, 1);
+  renumberFrames();
+  editorState.activeFrameIndex = Math.max(0, Math.min(editorState.activeFrameIndex, editorState.frames.length - 1));
+  syncActiveFramePixels();
+  editorState.shapeAnchor = null;
+  applyPaintedPixelsToGrid();
+  updateDraftStatus();
+  updateHistoryControls();
 }
 
 function exportPreviewPng() {
@@ -497,7 +599,10 @@ function setGridSize(size, options = {}) {
 
   grid.replaceChildren();
   editorState.gridSize = size;
-  editorState.paintedPixels.clear();
+  editorState.frames.forEach((frame) => {
+    frame.paintedPixels.clear();
+  });
+  syncActiveFramePixels();
   editorState.shapeAnchor = null;
   grid.dataset.spritesGridSize = String(size);
   grid.setAttribute("aria-label", gridLabel(size));
@@ -579,6 +684,23 @@ function wireCanvasActions() {
   }
 }
 
+function wireFrameActions() {
+  const addButton = document.querySelector("[data-sprites-add-frame]");
+  if (addButton) {
+    addButton.addEventListener("click", addFrame);
+  }
+
+  const duplicateButton = document.querySelector("[data-sprites-duplicate-frame]");
+  if (duplicateButton) {
+    duplicateButton.addEventListener("click", duplicateFrame);
+  }
+
+  const deleteButton = document.querySelector("[data-sprites-delete-frame]");
+  if (deleteButton) {
+    deleteButton.addEventListener("click", deleteFrame);
+  }
+}
+
 function wireHistoryActions() {
   const undoButton = document.querySelector("[data-sprites-undo]");
   if (undoButton) {
@@ -618,6 +740,7 @@ wireGridControls();
 wireDrawingTools();
 wirePaletteButtons();
 wireCanvasActions();
+wireFrameActions();
 wireHistoryActions();
 wireZoomControls();
 wireExportButton();

dev/tests/playwright/tools/SpritesToolShell.spec.mjs

@@ -487,3 +487,51 @@ test("Sprite Creator keeps center canvas and right preview in sync", async ({ pa
     await server.close();
   }
 });
+
+test("Sprite Creator edits unsaved frame strip frames", async ({ page }) => {
+  const server = await startSpriteShellTestServer();
+  const failures = collectPageFailures(page);
+
+  try {
+    await page.goto(`${server.baseUrl}/toolbox/sprites/index.html`, { waitUntil: "networkidle" });
+
+    await page.getByRole("button", { name: "Gold editor color" }).click();
+    await spriteCell(page, 1, 1).click();
+    await expectCenterAndPreviewPainted(page, 1, 1, "sprite-canvas-cell--gold");
+
+    await page.getByRole("button", { name: "Add Frame" }).click();
+    await expect(page.locator("[data-sprites-frame-card]")).toHaveCount(2);
+    await expect(page.locator("[data-sprites-frame-status]")).toContainText("Frame 2 is selected");
+    await expectCenterAndPreviewEmpty(page, 1, 1);
+
+    await page.getByRole("button", { name: "Blue editor color" }).click();
+    await page.getByRole("button", { name: "Pencil tool" }).click();
+    await spriteCell(page, 2, 2).click();
+    await expectCenterAndPreviewPainted(page, 2, 2, "sprite-canvas-cell--blue");
+
+    await page.locator("[data-sprites-frame-card='0']").click();
+    await expect(page.locator("[data-sprites-frame-status]")).toContainText("Frame 1 is selected");
+    await expectCenterAndPreviewPainted(page, 1, 1, "sprite-canvas-cell--gold");
+    await expectCenterAndPreviewEmpty(page, 2, 2);
+
+    await page.locator("[data-sprites-frame-card='1']").click();
+    await expect(page.locator("[data-sprites-frame-status]")).toContainText("Frame 2 is selected");
+    await expectCenterAndPreviewPainted(page, 2, 2, "sprite-canvas-cell--blue");
+
+    await page.getByRole("button", { name: "Duplicate Frame" }).click();
+    await expect(page.locator("[data-sprites-frame-card]")).toHaveCount(3);
+    await expect(page.locator("[data-sprites-frame-status]")).toContainText("Frame 3 is selected");
+    await expectCenterAndPreviewPainted(page, 2, 2, "sprite-canvas-cell--blue");
+
+    await page.getByRole("button", { name: "Delete Frame" }).click();
+    await expect(page.locator("[data-sprites-frame-card]")).toHaveCount(2);
+    await expect(page.locator("[data-sprites-frame-status]")).toContainText("Frame 2 is selected");
+    await expectCenterAndPreviewPainted(page, 2, 2, "sprite-canvas-cell--blue");
+
+    expect(failures.failedRequests).toEqual([]);
+    expect(failures.pageErrors).toEqual([]);
+    expect(failures.consoleErrors).toEqual([]);
+  } finally {
+    await server.close();
+  }
+});

docs_build/dev/reports/PR_26179_CHARLIE_035-sprites-frame-editing.md

@@ -0,0 +1,67 @@
+# PR_26179_CHARLIE_035-sprites-frame-editing
+
+Team: CHARLIE
+
+Mode: Batch governance stacked feature workflow
+
+Base branch: PR_26179_CHARLIE_034-sprites-frame-strip
+
+Branch: PR_26179_CHARLIE_035-sprites-frame-editing
+
+## Summary
+
+Added unsaved page-session frame editing for Sprite Creator. Creators can add, duplicate, select, and delete frames in the frame strip. Each frame keeps its own draft pixel map in page-session state only. No persistence, database, API, schema, or product-data source-of-truth behavior was introduced.
+
+## Branch Validation
+
+PASS
+
+- Built from `PR_26179_CHARLIE_034-sprites-frame-strip`.
+- Scope stayed limited to unsaved frame editing.
+- No DB/API/schema changes.
+- No saved product data or authoritative browser-owned product data added.
+- No start_of_day files changed.
+- ZIP package created at the requested path.
+
+## Requirement Checklist
+
+PASS - Add Frame control added.
+
+PASS - Duplicate Frame control added.
+
+PASS - Delete Frame control added and disabled when only one frame exists.
+
+PASS - Frame selection swaps the center canvas and preview to the selected frame.
+
+PASS - Each frame keeps separate unsaved page-session pixels.
+
+PASS - No persistence added.
+
+PASS - Targeted Playwright coverage updated.
+
+## Validation Lane
+
+PASS - `node --check assets/toolbox/sprites/js/index.js`
+
+PASS - `node --check dev/tests/playwright/tools/SpritesToolShell.spec.mjs`
+
+PASS - `git diff --check -- toolbox/sprites/index.html assets/toolbox/sprites/js/index.js dev/tests/playwright/tools/SpritesToolShell.spec.mjs`
+
+PASS - Runtime guard scan found no prohibited inline style/script/event-handler or stale placeholder text in touched runtime files.
+
+PASS - `npx playwright test dev/tests/playwright/tools/SpritesToolShell.spec.mjs --workers=1 --reporter=list`
+
+## Manual Validation Notes
+
+1. Open `toolbox/sprites/index.html`.
+2. Draw on Frame 1.
+3. Click Add Frame and confirm Frame 2 is empty.
+4. Draw different pixels on Frame 2.
+5. Select Frame 1 and confirm its pixels return.
+6. Select Frame 2 and confirm its pixels return.
+7. Duplicate Frame 2 and confirm the duplicate keeps the current pixels.
+8. Delete the duplicate and confirm the strip returns to two unsaved frames.
+
+## ZIP
+
+`dev/workspace/zip/PR_26179_CHARLIE_035-sprites-frame-editing_delta.zip`

docs_build/dev/reports/codex_changed_files.txt

@@ -1,7 +1,6 @@
-assets/theme-v2/css/gamefoundrystudio.css
 assets/toolbox/sprites/js/index.js
 dev/tests/playwright/tools/SpritesToolShell.spec.mjs
-docs_build/dev/reports/PR_26179_CHARLIE_034-sprites-frame-strip.md
+docs_build/dev/reports/PR_26179_CHARLIE_035-sprites-frame-editing.md
 docs_build/dev/reports/codex_changed_files.txt
 docs_build/dev/reports/codex_review.diff
 toolbox/sprites/index.html