fix(POSTV1-editor): 修复多选拖动与底图调整

RELEASE.json

@@ -3,7 +3,8 @@
   "browsers": [
     {
       "brand": "Google Chrome",
-      "fullVersion": "150.0.7871.187"
+      "fullVersion": "150.0.7871.187",
+      "supportedMajorVersions": [150, 151]
     },
     {
       "brand": "Microsoft Edge",

apps/api/src/admin-state.ts

@@ -151,10 +151,13 @@ export function createAdminDiagnosticsProvider(input: {
     const system: AdminDiagnosticsResponse["system"] = {
       api_status: "ready",
       app_version: input.appVersion ?? input.browserSupportRelease?.appVersion ?? "0.0.0",
-      browser_support: (input.browserSupportRelease?.browsers ?? []).map((browser) => ({
-        brand: browser.brand,
-        major: Number.parseInt(browser.fullVersion.split(".")[0] ?? "0", 10),
-      })).filter((browser) => Number.isSafeInteger(browser.major) && browser.major > 0),
+      browser_support: (input.browserSupportRelease?.browsers ?? []).flatMap((browser) => {
+        const majors = browser.supportedMajorVersions
+          ?? [Number.parseInt(browser.fullVersion.split(".")[0] ?? "0", 10)];
+        return majors
+          .map((major) => ({ brand: browser.brand, major }))
+          .filter((entry) => Number.isSafeInteger(entry.major) && entry.major > 0);
+      }),
       worker_status: services.services.find((service) => service.service_id === "worker")?.status === "active"
         ? "ready"
         : services.services.find((service) => service.service_id === "worker")?.status === "unavailable"

apps/api/src/browser-support.ts

@@ -43,7 +43,7 @@ export const BrowserSupportSuccessSchema = Type.Object(
     app_version: Type.String({ maxLength: 80 }),
     browser: SupportedBrowserSummarySchema,
     status: Type.Literal("supported"),
-    supported_browsers: Type.Array(SupportedBrowserSummarySchema, { maxItems: 2 }),
+    supported_browsers: Type.Array(SupportedBrowserSummarySchema, { maxItems: 8 }),
   },
   { additionalProperties: false, $id: "BrowserSupportSuccess" },
 );
@@ -57,6 +57,7 @@ export interface BrowserSupportRelease {
   browsers: ReadonlyArray<{
     brand: SupportedBrand;
     fullVersion: string;
+    supportedMajorVersions?: ReadonlyArray<number>;
   }>;
 }
 
@@ -115,7 +116,14 @@ function supportedIdentity(entries: Array<{ brand: string; version: string }>) {
 
 export function supportedBrowserSummary(release: BrowserSupportRelease | undefined) {
   if (!release) return [];
-  return release.browsers.map(({ brand, fullVersion }) => ({ brand, major: major(fullVersion)! }));
+  return release.browsers.flatMap(({ brand, fullVersion, supportedMajorVersions }) => {
+    const majors = supportedMajorVersions ?? [major(fullVersion)!];
+    return majors.map((supportedMajor) => ({ brand, major: supportedMajor }));
+  });
+}
+
+function acceptedMajorVersions(browser: BrowserSupportRelease["browsers"][number]) {
+  return browser.supportedMajorVersions ?? [major(browser.fullVersion)!];
 }
 
 export function validateBrowserSupportRelease(value: unknown): value is BrowserSupportRelease {
@@ -126,13 +134,26 @@ export function validateBrowserSupportRelease(value: unknown): value is BrowserS
   }
   if (!Array.isArray(release.browsers) || release.browsers.length !== 2) return false;
   const brands = new Set(release.browsers.map(({ brand }) => brand));
+  const supportedMajorCount = release.browsers.reduce(
+    (count, browser) => count + (browser.supportedMajorVersions?.length ?? 1),
+    0,
+  );
   return (
     brands.size === 2 &&
     brands.has("Google Chrome") &&
     brands.has("Microsoft Edge") &&
-    release.browsers.every(
-      ({ brand, fullVersion }) => supportedBrands.has(brand) && fullVersionPattern.test(fullVersion),
-    )
+    supportedMajorCount <= 8 &&
+    release.browsers.every(({ brand, fullVersion, supportedMajorVersions }) => {
+      if (!supportedBrands.has(brand) || !fullVersionPattern.test(fullVersion)) return false;
+      const baselineMajor = major(fullVersion);
+      if (!baselineMajor) return false;
+      if (supportedMajorVersions === undefined) return true;
+      return supportedMajorVersions.length > 0
+        && supportedMajorVersions.length <= 8
+        && supportedMajorVersions.every((value: number) => Number.isSafeInteger(value) && value >= 1)
+        && new Set(supportedMajorVersions).size === supportedMajorVersions.length
+        && supportedMajorVersions.includes(baselineMajor);
+    })
   );
 }
 
@@ -188,7 +209,7 @@ export function checkBrowserSupport(
   }
 
   const supported = release?.browsers.find(({ brand }) => brand === fullIdentity.brand);
-  if (!supported || major(supported.fullVersion) !== fullIdentity.major) {
+  if (!supported || !acceptedMajorVersions(supported).includes(fullIdentity.major)) {
     return { reason: "version_unsupported", supported: false };
   }
   return { identity: fullIdentity, supported: true };
@@ -268,7 +289,7 @@ export function verifyBrowserSupportCookie(input: {
     return { reason: "identity_unavailable" as const, supported: false as const };
   }
   const supported = input.release.browsers.find(({ brand }) => brand === currentIdentity.brand);
-  if (currentIdentity.major !== payload.major || major(supported?.fullVersion ?? "") !== currentIdentity.major) {
+  if (!supported || currentIdentity.major !== payload.major || !acceptedMajorVersions(supported).includes(currentIdentity.major)) {
     return { reason: "version_unsupported" as const, supported: false as const };
   }
   return { identity: currentIdentity, supported: true as const };

apps/web/src/editor-canvas.ts

@@ -2,6 +2,27 @@ import { isCanvasState, type CanvasState } from "@dada/shared-contracts";
 
 export type BackgroundAdjustments = CanvasState["background"]["adjustments"];
 
+interface CanvasSize {
+  height: number;
+  width: number;
+}
+
+interface CanvasRect {
+  height: number;
+  width: number;
+  x: number;
+  y: number;
+}
+
+export interface BackgroundDrawPlan {
+  destination: CanvasRect;
+  source: CanvasRect;
+}
+
+function clamp(value: number, minimum: number, maximum: number) {
+  return Math.min(maximum, Math.max(minimum, value));
+}
+
 const elementKeys = new Set([
   "colors", "content", "coordinates", "created_at", "dynamic_fields", "element_id", "font_override", "font_size",
   "formatted_value", "opacity", "position", "resource_version", "rotation", "scale", "style_id", "style_parameters",
@@ -106,7 +127,99 @@ export function deserializeFabricCanvas(input: unknown): CanvasState | undefined
   return isCanvasState(candidate) ? structuredClone(candidate) : undefined;
 }
 
+export function backgroundDrawPlan(
+  image: CanvasSize,
+  canvas: CanvasSize,
+  adjustments: BackgroundAdjustments,
+): BackgroundDrawPlan {
+  if (image.width <= 0 || image.height <= 0 || canvas.width <= 0 || canvas.height <= 0) {
+    throw new Error("background_dimensions_invalid");
+  }
+  const crop = adjustments.crop;
+  const normalizedX = crop ? clamp(crop.x, 0, 1) : 0;
+  const normalizedY = crop ? clamp(crop.y, 0, 1) : 0;
+  const normalizedWidth = crop ? Math.min(crop.width, 1 - normalizedX) : 1;
+  const normalizedHeight = crop ? Math.min(crop.height, 1 - normalizedY) : 1;
+  const source = normalizedWidth > 0 && normalizedHeight > 0
+    ? {
+        height: image.height * normalizedHeight,
+        width: image.width * normalizedWidth,
+        x: image.width * normalizedX,
+        y: image.height * normalizedY,
+      }
+    : { height: image.height, width: image.width, x: 0, y: 0 };
+
+  if (adjustments.fit === "fill") {
+    return { destination: { height: canvas.height, width: canvas.width, x: 0, y: 0 }, source };
+  }
+  if (adjustments.fit === "fit") {
+    const scale = Math.min(canvas.width / source.width, canvas.height / source.height);
+    const width = source.width * scale;
+    const height = source.height * scale;
+    return {
+      destination: { height, width, x: (canvas.width - width) / 2, y: (canvas.height - height) / 2 },
+      source,
+    };
+  }
+
+  const sourceAspect = source.width / source.height;
+  const canvasAspect = canvas.width / canvas.height;
+  if (sourceAspect > canvasAspect) {
+    const width = source.height * canvasAspect;
+    source.x += (source.width - width) / 2;
+    source.width = width;
+  } else if (sourceAspect < canvasAspect) {
+    const height = source.width / canvasAspect;
+    source.y += (source.height - height) / 2;
+    source.height = height;
+  }
+  return {
+    destination: { height: canvas.height, width: canvas.width, x: 0, y: 0 },
+    source,
+  };
+}
+
+export function adjustBackgroundPixels(
+  pixels: Uint8ClampedArray,
+  width: number,
+  height: number,
+  adjustments: Pick<BackgroundAdjustments, "sharpness" | "temperature">,
+) {
+  if (!Number.isInteger(width) || !Number.isInteger(height) || width <= 0 || height <= 0 || pixels.length !== width * height * 4) {
+    throw new Error("background_pixel_buffer_invalid");
+  }
+  const source = new Uint8ClampedArray(pixels);
+  const output = new Uint8ClampedArray(source);
+  const sharpness = clamp(adjustments.sharpness, 0, 100) / 100;
+  const temperature = clamp(adjustments.temperature, -100, 100) / 100;
+  const channelOffsets = [35 * temperature, 8 * temperature, -35 * temperature];
+
+  for (let y = 0; y < height; y += 1) {
+    for (let x = 0; x < width; x += 1) {
+      const index = (y * width + x) * 4;
+      for (let channel = 0; channel < 3; channel += 1) {
+        let value = source[index + channel]!;
+        if (sharpness > 0 && x > 0 && x < width - 1 && y > 0 && y < height - 1) {
+          const left = source[index + channel - 4]!;
+          const right = source[index + channel + 4]!;
+          const above = source[index + channel - width * 4]!;
+          const below = source[index + channel + width * 4]!;
+          value = value * (1 + 4 * sharpness) - (left + right + above + below) * sharpness;
+        }
+        output[index + channel] = value + channelOffsets[channel]!;
+      }
+      output[index + 3] = source[index + 3]!;
+    }
+  }
+  return output;
+}
+
 export function cssFilterForBackground(adjustments: BackgroundAdjustments) {
-  const filter = adjustments.filter === "grayscale" ? "grayscale(1)" : adjustments.filter === "sepia" ? "sepia(0.75)" : "none";
-  return `${filter} brightness(${100 + adjustments.brightness}%) contrast(${100 + adjustments.contrast}%) saturate(${100 + adjustments.saturation}%)`;
+  const filters: string[] = [];
+  if (adjustments.filter === "grayscale") filters.push("grayscale(1)");
+  else if (adjustments.filter === "sepia") filters.push("sepia(0.75)");
+  if (adjustments.brightness !== 0) filters.push(`brightness(${100 + adjustments.brightness}%)`);
+  if (adjustments.contrast !== 0) filters.push(`contrast(${100 + adjustments.contrast}%)`);
+  if (adjustments.saturation !== 0) filters.push(`saturate(${100 + adjustments.saturation}%)`);
+  return filters.length > 0 ? filters.join(" ") : "none";
 }

apps/web/src/editor-elements.ts

@@ -187,7 +187,7 @@ export class CanvasElementController {
       .map((element) => structuredClone(element));
   }
 
-  selectAt(point: CanvasPoint, options: { append?: boolean } = {}) {
+  selectAt(point: CanvasPoint, options: { append?: boolean; preserveSelection?: boolean } = {}) {
     const candidates = this.candidatesAt(point);
     if (candidates.length === 0) {
       if (!options.append) this.selection = [];
@@ -196,7 +196,9 @@ export class CanvasElementController {
     }
     if (options.append) {
       this.pointerMoved();
-      return this.selectById(candidates[0]!.element_id, true);
+      const elementId = candidates[0]!.element_id;
+      if (options.preserveSelection && this.selection.includes(elementId)) return this.selectedIds;
+      return this.selectById(elementId, true);
     }
     const signature = candidates.map((candidate) => candidate.element_id).join("|");
     if (samePoint(this.cyclePoint, point) && signature === this.cycleSignature) this.cycleIndex = (this.cycleIndex + 1) % candidates.length;
@@ -255,7 +257,8 @@ export class CanvasElementController {
 
   moveSelected(delta: CanvasPoint, options: { snap?: boolean } = {}) {
     const selected = new Set(this.selection);
-    const primary = this.current.elements.find((element) => selected.has(element.element_id));
+    const selectedElements = this.current.elements.filter((element) => selected.has(element.element_id));
+    const primary = selectedElements[0];
     if (!primary) return { guides: [] as string[], state: this.value };
     let nextX = primary.position.x + delta.x;
     let nextY = primary.position.y + delta.y;
@@ -278,10 +281,20 @@ export class CanvasElementController {
       nextX = snapAxis(nextX, "x");
       nextY = snapAxis(nextY, "y");
     }
-    const adjusted = { x: nextX - primary.position.x, y: nextY - primary.position.y };
+    const minimumX = Math.min(...selectedElements.map((element) => element.position.x));
+    const maximumX = Math.max(...selectedElements.map((element) => element.position.x));
+    const minimumY = Math.min(...selectedElements.map((element) => element.position.y));
+    const maximumY = Math.max(...selectedElements.map((element) => element.position.y));
+    const adjusted = {
+      x: clamp(nextX - primary.position.x, -minimumX, 1 - maximumX),
+      y: clamp(nextY - primary.position.y, -minimumY, 1 - maximumY),
+    };
     const state = this.updateSelected((element) => ({
       ...element,
-      position: { x: clamp(element.position.x + adjusted.x, 0, 1), y: clamp(element.position.y + adjusted.y, 0, 1) },
+      position: {
+        x: clamp(Number((element.position.x + adjusted.x).toFixed(12)), 0, 1),
+        y: clamp(Number((element.position.y + adjusted.y).toFixed(12)), 0, 1),
+      },
     }));
     return { guides, state };
   }

apps/web/src/editor-page.css

@@ -1,12 +1,9 @@
 .editor-page-shell {
-  height: 100vh;
-  height: 100dvh;
-  min-height: 0;
+  min-height: 100vh;
   display: grid;
   grid-template-rows: 56px minmax(0, 1fr) 32px;
   background: #e8e8e5;
   color: #111111;
-  overflow: hidden;
 }
 
 .editor-page-shell :focus-visible {
@@ -127,7 +124,6 @@
   display: grid;
   grid-template-columns: 280px minmax(0, 1fr) 320px;
   min-height: 0;
-  overflow: hidden;
 }
 
 .editor-assets-panel,
@@ -546,13 +542,13 @@
 }
 
 @media (max-width: 760px) {
-  .editor-page-shell { height: auto; min-height: 100dvh; grid-template-rows: auto minmax(0, 1fr) auto; overflow: visible; }
+  .editor-page-shell { grid-template-rows: auto minmax(0, 1fr) auto; }
   .editor-toolbar { display: flex; min-height: 56px; flex-wrap: wrap; gap: 8px; padding: 8px 10px; }
   .editor-title { min-width: 0; flex: 1 1 calc(100% - 56px); }
   .editor-history-actions { order: 3; }
   .editor-save-status { order: 4; flex: 1 1 128px; }
   .editor-toolbar-controls > button { display: block; order: 5; }
-  .editor-layout { grid-template-columns: 1fr; overflow: visible; }
+  .editor-layout { grid-template-columns: 1fr; }
   .editor-assets-panel, .editor-inspector { border: 0; }
   .editor-assets-panel { order: 2; }
   .editor-inspector { order: 3; }

apps/web/src/editor-page.tsx

@@ -160,20 +160,6 @@ export function EditorPage({ projectId }: { projectId: string }) {
   const conflictExportGuardRef = useRef(new ConflictExportGuard());
   const candidateMenuRef = useRef<HTMLDivElement | null>(null);
   const candidateTriggerRef = useRef<HTMLButtonElement | null>(null);
-  const noticeTimerRef = useRef<ReturnType<typeof setTimeout> | undefined>(undefined);
-
-  function showNotice(message: string) {
-    if (noticeTimerRef.current) clearTimeout(noticeTimerRef.current);
-    setNotice(message);
-    noticeTimerRef.current = setTimeout(() => {
-      setNotice("");
-      noticeTimerRef.current = undefined;
-    }, 3_000);
-  }
-
-  useEffect(() => () => {
-    if (noticeTimerRef.current) clearTimeout(noticeTimerRef.current);
-  }, []);
 
   useEffect(() => {
     let active = true;
@@ -189,7 +175,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
       setDraftAdjustments(initial.background.adjustments);
       historyRef.current = new CanvasEditHistory(initial);
       elementControllerRef.current = new CanvasElementController(initial);
-    }).catch(() => { if (active) showNotice("编辑器暂时无法读取项目"); });
+    }).catch(() => { if (active) setNotice("编辑器暂时无法读取项目"); });
     return () => { active = false; };
   }, [projectId]);
 
@@ -305,7 +291,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
   function applyPreview() {
     if (!canvasState) return;
     commitCanvas(updateBackgroundAdjustments(canvasState, draftAdjustments));
-    showNotice("底图调整已提交");
+    setNotice("底图调整已提交");
   }
 
   function undo() {
@@ -348,9 +334,9 @@ export function EditorPage({ projectId }: { projectId: string }) {
       const palette = await paletteForAsset(pendingBackground);
       commitCanvas(switchBackground(canvasState, pendingBackground, palette));
       setPendingBackground(undefined);
-      showNotice("已更换底图，覆盖元素保留，底图处理已重置");
+      setNotice("已更换底图，覆盖元素保留，底图处理已重置");
     } catch {
-      showNotice("新底图无法读取，未更换底图或刷新色卡");
+      setNotice("新底图无法读取，未更换底图或刷新色卡");
     }
   }
 
@@ -367,7 +353,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     commitCanvas(next);
     setGuides([]);
     setCandidateMenu(undefined);
-    showNotice(message);
+    setNotice(message);
   }
 
   function addSticker(sticker: StaticStickerCatalogItem) {
@@ -383,8 +369,8 @@ export function EditorPage({ projectId }: { projectId: string }) {
       }));
       commitElementOperation(controller, "贴纸已加入画布");
     } catch (error) {
-      if (error instanceof Error && error.message === "canvas_element_limit_reached") showNotice("画布最多 50 个元素，请先删除现有元素。");
-      else showNotice("贴纸未能加入画布");
+      if (error instanceof Error && error.message === "canvas_element_limit_reached") setNotice("画布最多 50 个元素，请先删除现有元素。");
+      else setNotice("贴纸未能加入画布");
     }
   }
 
@@ -397,8 +383,8 @@ export function EditorPage({ projectId }: { projectId: string }) {
       controller.add(createColorCardElement(definition, palette, newElementIdentity(), canvasState.elements.length));
       commitElementOperation(controller, "色卡已按原始底图加入画布");
     } catch (error) {
-      if (error instanceof Error && error.message === "canvas_element_limit_reached") showNotice("画布最多 50 个元素，请先删除现有元素。");
-      else showNotice("无法从原始底图稳定提取五色，色卡未加入画布");
+      if (error instanceof Error && error.message === "canvas_element_limit_reached") setNotice("画布最多 50 个元素，请先删除现有元素。");
+      else setNotice("无法从原始底图稳定提取五色，色卡未加入画布");
     }
   }
 
@@ -408,7 +394,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     if (templateId === "DYN012") {
       const font = fontOption("FONT081");
       if (!font || await ensureFont(font.fontId, font.url) !== "ready") {
-        showNotice("DYN012 的 FONT081 替代字体不可用，未使用系统字体替代。");
+        setNotice("DYN012 的 FONT081 替代字体不可用，未使用系统字体替代。");
         return;
       }
     }
@@ -421,8 +407,8 @@ export function EditorPage({ projectId }: { projectId: string }) {
       commitElementOperation(controller, "动态值已确认并加入画布");
       setLocationDialog(undefined);
     } catch (error) {
-      if (error instanceof Error && error.message === "canvas_element_limit_reached") showNotice("画布最多 50 个元素，请先删除现有元素。");
-      else showNotice("动态贴纸未能加入画布");
+      if (error instanceof Error && error.message === "canvas_element_limit_reached") setNotice("画布最多 50 个元素，请先删除现有元素。");
+      else setNotice("动态贴纸未能加入画布");
     }
   }
 
@@ -470,7 +456,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
       controller.replaceElement(overrideDynamicStickerValue(element, value));
       commitElementOperation(controller, "动态贴纸显示文字已更新");
     } catch {
-      showNotice("动态贴纸显示文字不能为空");
+      setNotice("动态贴纸显示文字不能为空");
     }
   }
 
@@ -494,7 +480,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     if (!template.fontUrl || !canvasState) return;
     const status = await ensureFont(template.defaultFontId, template.fontUrl);
     if (status !== "ready") {
-      showNotice("素材暂不可用，未使用系统字体替代。");
+      setNotice("素材暂不可用，未使用系统字体替代。");
       return;
     }
     const controller = controllerForCurrent();
@@ -504,8 +490,8 @@ export function EditorPage({ projectId }: { projectId: string }) {
       commitElementOperation(controller, "文字模板已加入画布");
       void recordRecentTextTemplate(template.templateId, template.resourceVersion);
     } catch (error) {
-      if (error instanceof Error && error.message === "canvas_element_limit_reached") showNotice("画布最多 50 个元素，请先删除现有元素。");
-      else showNotice("文字模板未能加入画布");
+      if (error instanceof Error && error.message === "canvas_element_limit_reached") setNotice("画布最多 50 个元素，请先删除现有元素。");
+      else setNotice("文字模板未能加入画布");
     }
   }
 
@@ -517,7 +503,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
         action(edit);
         return { ...current, draft: edit.value };
       } catch {
-        showNotice("文字参数不在允许范围内");
+        setNotice("文字参数不在允许范围内");
         return current;
       }
     });
@@ -528,7 +514,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     if (!template?.fontUrl) return;
     const status = await ensureFont(template.defaultFontId, template.fontUrl);
     if (status !== "ready") {
-      showNotice("素材暂不可用，未使用系统字体替代。");
+      setNotice("素材暂不可用，未使用系统字体替代。");
       return;
     }
     updateTextDraft((edit) => edit.switchTemplate(templateId));
@@ -541,7 +527,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     }
     const option = fontOption(fontId);
     if (!option || await ensureFont(option.fontId, option.url) !== "ready") {
-      showNotice("字体素材暂不可用，未使用系统字体替代。");
+      setNotice("字体素材暂不可用，未使用系统字体替代。");
       return;
     }
     updateTextDraft((edit) => edit.setStyle({ fontOverride: fontId }));
@@ -560,8 +546,8 @@ export function EditorPage({ projectId }: { projectId: string }) {
         void recordRecentTextTemplate(complete.template_or_asset_id, complete.resource_version);
       }
     } catch (error) {
-      if (error instanceof Error && error.message === "text_content_required") showNotice("请输入文字内容或删除该元素。");
-      else showNotice("文字编辑未能完成");
+      if (error instanceof Error && error.message === "text_content_required") setNotice("请输入文字内容或删除该元素。");
+      else setNotice("文字编辑未能完成");
     }
   }
 
@@ -570,7 +556,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
       const current = canvasState.elements.find((element) => element.element_id === textEdit.elementId);
       if (current) setTextEdit({ draft: structuredClone(current), elementId: current.element_id, originalTemplateId: current.template_or_asset_id });
     }
-    showNotice("已取消未提交的文字修改");
+    setNotice("已取消未提交的文字修改");
   }
 
   function pendingTextDraft() {
@@ -638,7 +624,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
       return;
     }
     const ran = await conflictExportGuardRef.current.run(() => executeExport(options));
-    if (!ran) showNotice("版本冲突时仅允许导出本页版本一次");
+    if (!ran) setNotice("版本冲突时仅允许导出本页版本一次");
   }
 
   async function retryExportDownload() {
@@ -653,8 +639,8 @@ export function EditorPage({ projectId }: { projectId: string }) {
       action(controller);
       commitElementOperation(controller, message);
     } catch (error) {
-      if (error instanceof Error && error.message === "canvas_element_limit_reached") showNotice("画布最多 50 个元素，请先删除现有元素。");
-      else showNotice("对象操作未完成");
+      if (error instanceof Error && error.message === "canvas_element_limit_reached") setNotice("画布最多 50 个元素，请先删除现有元素。");
+      else setNotice("对象操作未完成");
     }
   }
 
@@ -682,7 +668,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     opacityGestureRef.current = undefined;
     if (gesture.last === gesture.base) return;
     commitCanvas(gesture.last);
-    showNotice("贴纸透明度已提交");
+    setNotice("贴纸透明度已提交");
   }
 
   function duplicateSelection() {
@@ -702,7 +688,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     const controller = controllerForCurrent();
     if (!controller || selectedIds.length === 0) return;
     clipboardRef.current = controller.copySelected();
-    showNotice("已复制到画布剪贴板");
+    setNotice("已复制到画布剪贴板");
   }
 
   function pasteSelection() {
@@ -712,7 +698,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
       controller.pasteElements(clipboardRef.current, () => newElementIdentity());
       commitElementOperation(controller, "已粘贴画布对象");
     } catch (error) {
-      if (error instanceof Error && error.message === "canvas_element_limit_reached") showNotice("画布最多 50 个元素，请先删除现有元素。");
+      if (error instanceof Error && error.message === "canvas_element_limit_reached") setNotice("画布最多 50 个元素，请先删除现有元素。");
     }
   }
 
@@ -720,7 +706,10 @@ export function EditorPage({ projectId }: { projectId: string }) {
     const controller = controllerForCurrent();
     if (!controller || !canvasState) return false;
     const candidates = controller.candidatesAt(point);
-    const selection = controller.selectAt(point, { append: append || multiMode });
+    const selection = controller.selectAt(point, {
+      append: append || multiMode,
+      preserveSelection: multiMode && !append,
+    });
     setSelectedIds(selection);
     setCandidateMenu(undefined);
     dragRef.current = { base: canvasState, last: canvasState, selectedIds: selection };
@@ -742,7 +731,7 @@ export function EditorPage({ projectId }: { projectId: string }) {
     const drag = dragRef.current;
     if (!drag) return;
     commitCanvas(drag.last);
-    showNotice("对象位置已提交");
+    setNotice("对象位置已提交");
     setGuides([]);
     dragRef.current = undefined;
   }
@@ -803,10 +792,14 @@ export function EditorPage({ projectId }: { projectId: string }) {
   }
 
   if (!project || !canvasState) return <main className="editor-loading" aria-live="polite">正在加载编辑器</main>;
-  const renderedCanvasState = textEdit ? {
+  const backgroundPreviewState: CanvasState = {
     ...canvasState,
-    elements: canvasState.elements.map((element) => element.element_id === textEdit.elementId ? textEdit.draft : element),
-  } : canvasState;
+    background: { ...canvasState.background, adjustments: draftAdjustments },
+  };
+  const renderedCanvasState = textEdit ? {
+    ...backgroundPreviewState,
+    elements: backgroundPreviewState.elements.map((element) => element.element_id === textEdit.elementId ? textEdit.draft : element),
+  } : backgroundPreviewState;
   const imageUrl = `/api/v1/private-assets/projects/${projectId}/images/${canvasState.background.asset_id ?? project.current_image_id ?? ""}`;
   const canEdit = saveStatus !== "conflicted";
   const selectedElements = renderedCanvasState.elements.filter((element) => selectedIds.includes(element.element_id));

apps/web/src/editor-stage.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useRef, useState, type KeyboardEvent, type PointerEvent } from "react";
 import type { CanvasState } from "@dada/shared-contracts";
 
-import { cssFilterForBackground } from "./editor-canvas.js";
+import { adjustBackgroundPixels, backgroundDrawPlan, cssFilterForBackground } from "./editor-canvas.js";
 import { DYN012_RENDER_LAYOUT, dyn012DisplayParts } from "./dynamic-provider.js";
 import type { DynamicTemplateId } from "./dynamic-provider.js";
 import { DYNAMIC_RENDER_MODELS, dynamicFontOptionsFor, dynamicImageUrl, dynamicTextValue } from "./dynamic-render-models.js";
@@ -12,17 +12,12 @@ import { drawColorCard } from "./palette-provider.js";
 
 interface Gesture {
   append: boolean;
-  bounds: DOMRect;
   hit: boolean;
   longPressOpened: boolean;
-  moved: boolean;
   pointerId: number;
   start: CanvasPoint;
-  startClient: CanvasPoint;
 }
 
-const DRAG_THRESHOLD_PX = 4;
-
 interface EditorStageProps {
   assetId: string | null;
   canvasState: CanvasState;
@@ -43,10 +38,11 @@ interface EditorStageProps {
   selectedIds: readonly string[];
 }
 
-function pointFromClient(clientX: number, clientY: number, bounds: DOMRect): CanvasPoint {
+function pointFromEvent(event: PointerEvent<HTMLCanvasElement>): CanvasPoint {
+  const bounds = event.currentTarget.getBoundingClientRect();
   return {
-    x: Math.max(0, Math.min(1, (clientX - bounds.left) / bounds.width)),
-    y: Math.max(0, Math.min(1, (clientY - bounds.top) / bounds.height)),
+    x: Math.max(0, Math.min(1, (event.clientX - bounds.left) / bounds.width)),
+    y: Math.max(0, Math.min(1, (event.clientY - bounds.top) / bounds.height)),
   };
 }
 
@@ -278,9 +274,41 @@ function renderEditorScene(
   context.clearRect(0, 0, canvasState.pixel_width, canvasState.pixel_height);
   context.fillStyle = "#ffffff";
   context.fillRect(0, 0, canvasState.pixel_width, canvasState.pixel_height);
-  context.filter = cssFilterForBackground(canvasState.background.adjustments);
-  if (background) context.drawImage(background, 0, 0, canvasState.pixel_width, canvasState.pixel_height);
-  context.filter = "none";
+  if (background) {
+    const plan = backgroundDrawPlan(
+      { height: background.naturalHeight || background.height, width: background.naturalWidth || background.width },
+      { height: canvasState.pixel_height, width: canvasState.pixel_width },
+      canvasState.background.adjustments,
+    );
+    context.save();
+    context.filter = cssFilterForBackground(canvasState.background.adjustments);
+    context.drawImage(
+      background,
+      plan.source.x,
+      plan.source.y,
+      plan.source.width,
+      plan.source.height,
+      plan.destination.x,
+      plan.destination.y,
+      plan.destination.width,
+      plan.destination.height,
+    );
+    context.restore();
+
+    if (canvasState.background.adjustments.temperature !== 0 || canvasState.background.adjustments.sharpness !== 0) {
+      const x = Math.max(0, Math.floor(plan.destination.x));
+      const y = Math.max(0, Math.floor(plan.destination.y));
+      const right = Math.min(canvasState.pixel_width, Math.ceil(plan.destination.x + plan.destination.width));
+      const bottom = Math.min(canvasState.pixel_height, Math.ceil(plan.destination.y + plan.destination.height));
+      const width = right - x;
+      const height = bottom - y;
+      if (width > 0 && height > 0) {
+        const imageData = context.getImageData(x, y, width, height);
+        imageData.data.set(adjustBackgroundPixels(imageData.data, width, height, canvasState.background.adjustments));
+        context.putImageData(imageData, x, y);
+      }
+    }
+  }
   for (const element of [...canvasState.elements].sort((left, right) => left.z_index - right.z_index)) {
     drawElement(context, element, canvasState.pixel_width, canvasState.pixel_height, fontStatuses, resourceImages);
   }
@@ -360,14 +388,10 @@ export function EditorStage(props: EditorStageProps) {
 
   function handlePointerDown(event: PointerEvent<HTMLCanvasElement>) {
     if (event.button !== 0) return;
-    const bounds = event.currentTarget.getBoundingClientRect();
-    const start = pointFromClient(event.clientX, event.clientY, bounds);
+    const start = pointFromEvent(event);
     const append = event.shiftKey;
     const hit = props.onSelect(start, append);
-    gestureRef.current = {
-      append, bounds, hit, longPressOpened: false, moved: false, pointerId: event.pointerId, start,
-      startClient: { x: event.clientX, y: event.clientY },
-    };
+    gestureRef.current = { append, hit, longPressOpened: false, pointerId: event.pointerId, start };
     event.currentTarget.setPointerCapture(event.pointerId);
     longPressRef.current = setTimeout(() => {
       const gesture = gestureRef.current;
@@ -383,11 +407,9 @@ export function EditorStage(props: EditorStageProps) {
       props.onPointerMoved();
       return;
     }
-    const clientDistance = Math.hypot(event.clientX - gesture.startClient.x, event.clientY - gesture.startClient.y);
-    if (!gesture.moved && clientDistance < DRAG_THRESHOLD_PX) return;
-    gesture.moved = true;
-    const point = pointFromClient(event.clientX, event.clientY, gesture.bounds);
+    const point = pointFromEvent(event);
     const delta = { x: point.x - gesture.start.x, y: point.y - gesture.start.y };
+    if (Math.abs(delta.x) + Math.abs(delta.y) < 0.003) return;
     if (longPressRef.current) clearTimeout(longPressRef.current);
     props.onPointerMoved();
     if (gesture.hit && !gesture.longPressOpened) props.onMovePreview(delta);
@@ -398,18 +420,11 @@ export function EditorStage(props: EditorStageProps) {
     const gesture = gestureRef.current;
     if (!gesture || gesture.pointerId !== event.pointerId) return;
     if (longPressRef.current) clearTimeout(longPressRef.current);
-    const clientDistance = Math.hypot(event.clientX - gesture.startClient.x, event.clientY - gesture.startClient.y);
-    const moved = gesture.moved || clientDistance >= DRAG_THRESHOLD_PX;
-    if (moved && !gesture.moved && !gesture.longPressOpened) {
-      const point = pointFromClient(event.clientX, event.clientY, gesture.bounds);
-      const delta = { x: point.x - gesture.start.x, y: point.y - gesture.start.y };
-      if (gesture.hit) props.onMovePreview(delta);
-    }
+    const point = pointFromEvent(event);
+    const delta = { x: point.x - gesture.start.x, y: point.y - gesture.start.y };
+    const moved = Math.abs(delta.x) + Math.abs(delta.y) >= 0.003;
     if (gesture.hit && moved && !gesture.longPressOpened) props.onMoveCommit();
-    else if (!gesture.hit && moved) {
-      const point = pointFromClient(event.clientX, event.clientY, gesture.bounds);
-      props.onMarquee({ height: point.y - gesture.start.y, width: point.x - gesture.start.x, x: gesture.start.x, y: gesture.start.y }, gesture.append);
-    }
+    else if (!gesture.hit && moved) props.onMarquee({ height: delta.y, width: delta.x, x: gesture.start.x, y: gesture.start.y }, gesture.append);
     setMarquee(undefined);
     gestureRef.current = undefined;
     event.currentTarget.releasePointerCapture(event.pointerId);

apps/worker/src/worker.ts

@@ -107,5 +107,7 @@ if (!workerPort && process.argv.includes("--dada-ai-probe")) {
   } catch {
     storageStatus = "unavailable";
     control.reportStatus("storage_unavailable");
+    clearInterval(keepAlive);
+    setTimeout(() => process.exit(1), 50);
   }
 }

packages/shared-contracts/src/admin.ts

@@ -281,7 +281,7 @@ export const AdminDiagnosticsResponseSchema = Type.Object({
     browser_support: Type.Array(Type.Object({
       brand: Type.Union([Type.Literal("Google Chrome"), Type.Literal("Microsoft Edge")]),
       major: Type.Integer({ minimum: 1 }),
-    }, { additionalProperties: false }), { maxItems: 2 }),
+    }, { additionalProperties: false }), { maxItems: 8 }),
     worker_status: Type.Union([Type.Literal("ready"), Type.Literal("degraded"), Type.Literal("unavailable")]),
   }, { additionalProperties: false }),
 }, { additionalProperties: false, $id: "AdminDiagnosticsResponse" });

packages/shared-contracts/src/api.ts

@@ -83,7 +83,7 @@ export const ErrorDetailsSchema = Type.Object(
           },
           { additionalProperties: false },
         ),
-        { maxItems: 2 },
+        { maxItems: 8 },
       ),
     ),
     capacity_status: Type.Optional(

scripts/lib/wp7-07-final-release.mjs

@@ -14,7 +14,11 @@ export const DEFERRED_EXTERNAL_TASKS = Object.freeze(["TASK-WP7-03", "TASK-WP7-0
 export function buildFinalReleaseRecord({ appVersion, browsers, buildCommit, frozenFromCommit, recordedAt, windows }) {
   const record = {
     appVersion,
-    browsers: browsers.map(({ brand, fullVersion }) => ({ brand, fullVersion })),
+    browsers: browsers.map(({ brand, fullVersion, supportedMajorVersions }) => ({
+      brand,
+      fullVersion,
+      ...(supportedMajorVersions ? { supportedMajorVersions: [...supportedMajorVersions] } : {}),
+    })),
     buildCommit: buildCommit.toLowerCase(),
     deferredExternalTasks: [...DEFERRED_EXTERNAL_TASKS],
     finalRelease: true,
@@ -44,8 +48,25 @@ export function validateFinalReleaseRecord(record) {
   } else {
     const brands = record.browsers.map(({ brand }) => brand).sort();
     if (brands.join("|") !== "Google Chrome|Microsoft Edge") errors.push("browserBrands");
+    const supportedMajorCount = record.browsers.reduce(
+      (count, browser) => count + (Array.isArray(browser.supportedMajorVersions)
+        ? browser.supportedMajorVersions.length
+        : 1),
+      0,
+    );
+    if (supportedMajorCount > 8) errors.push("supportedMajorVersions.total");
     for (const browser of record.browsers) {
       if (!VERSION.test(browser.fullVersion ?? "")) errors.push(`${browser.brand}.fullVersion`);
+      if (browser.supportedMajorVersions !== undefined) {
+        const values = browser.supportedMajorVersions;
+        const baselineMajor = Number.parseInt(browser.fullVersion.split(".")[0] ?? "0", 10);
+        if (!Array.isArray(values) || values.length === 0 || values.length > 8
+          || values.some((value) => !Number.isSafeInteger(value) || value < 1)
+          || new Set(values).size !== values.length
+          || !values.includes(baselineMajor)) {
+          errors.push(`${browser.brand}.supportedMajorVersions`);
+        }
+      }
       if ("path" in browser || "executablePath" in browser || "executableSha256" in browser) errors.push(`${browser.brand}.privateMetadata`);
     }
   }

supervisor/Dada.Supervisor/Program.cs

@@ -30,7 +30,10 @@ internal static class Program
             };
             var state = await runtime.StartAsync();
             if (!form.IsDisposed) form.SetState(state);
-            if (state == SupervisorState.Ready) SupervisorForm.OpenProductInSupportedBrowser();
+            if (state == SupervisorState.Ready && !SupervisorForm.OpenProductInSupportedBrowser())
+            {
+                form.SetBrowserLaunchFailure();
+            }
         }
         form.Shown += async (_, _) => await StartRuntimeAsync();
         form.RestartRequested += async () => await StartRuntimeAsync();

supervisor/Dada.Supervisor/SupervisorForm.cs

@@ -26,6 +26,7 @@ internal sealed class SupervisorForm : Form
         Font = new Font("Segoe UI", 9F);
         FormBorderStyle = FormBorderStyle.FixedDialog;
         MaximizeBox = false;
+        ShowInTaskbar = true;
         StartPosition = FormStartPosition.CenterScreen;
         Text = "Dada";
 
@@ -90,10 +91,6 @@ internal sealed class SupervisorForm : Form
         trayIcon.DoubleClick += (_, _) => RestoreWindow();
 
         FormClosing += (_, _) => trayIcon.Visible = false;
-        Resize += (_, _) =>
-        {
-            if (WindowState == FormWindowState.Minimized) Hide();
-        };
         SetState(initialState);
     }
 
@@ -139,6 +136,14 @@ internal sealed class SupervisorForm : Form
         Activate();
     }
 
+    internal void SetBrowserLaunchFailure()
+    {
+        if (state == SupervisorState.Ready)
+        {
+            statusDetail.Text = "本机服务运行正常，但未能自动打开浏览器；请点击“打开 Dada”或选择浏览器。";
+        }
+    }
+
     protected override void Dispose(bool disposing)
     {
         if (disposing) trayIcon.Dispose();

supervisor/Dada.Supervisor/SupportedBrowserLauncher.cs

@@ -1,3 +1,4 @@
+using System.ComponentModel;
 using System.Diagnostics;
 using Microsoft.Win32;
 
@@ -13,10 +14,20 @@ internal static class SupportedBrowserLauncher
     {
         var executable = FindExecutable(executableName);
         if (executable is null) return false;
-        var startInfo = new ProcessStartInfo(executable) { UseShellExecute = false };
-        startInfo.ArgumentList.Add(uri.AbsoluteUri);
-        Process.Start(startInfo);
-        return true;
+        try
+        {
+            var startInfo = new ProcessStartInfo(executable) { UseShellExecute = false };
+            startInfo.ArgumentList.Add(uri.AbsoluteUri);
+            return Process.Start(startInfo) is not null;
+        }
+        catch (Win32Exception)
+        {
+            return false;
+        }
+        catch (InvalidOperationException)
+        {
+            return false;
+        }
     }
 
     private static string? FindExecutable(string executableName)

tests/api/wp0-03-browser-gate.test.ts

@@ -13,6 +13,14 @@ const supportedEdge = browserSupportFixture({
   brand: "Microsoft Edge",
   fullVersion: "150.0.4078.99",
 });
+const supportedChrome150 = browserSupportFixture({
+  brand: "Google Chrome",
+  fullVersion: "150.0.7871.187",
+});
+const supportedChrome151 = browserSupportFixture({
+  brand: "Google Chrome",
+  fullVersion: "151.0.0.0",
+});
 const rejectedIdentityCases = [
   {
     expectedReason: "platform_unsupported",
@@ -145,6 +153,7 @@ describe("TDD-WP0-BRW-001 supported browser contract", () => {
       status: "supported",
       supported_browsers: [
         { brand: "Google Chrome", major: 150 },
+        { brand: "Google Chrome", major: 151 },
         { brand: "Microsoft Edge", major: 150 },
       ],
     });
@@ -188,6 +197,26 @@ describe("TDD-WP0-BRW-001 supported browser contract", () => {
     expect(staleCookie.statusCode).toBe(426);
     await restarted.close();
   });
+
+  it.each([
+    { expectedMajor: 150, fixture: supportedChrome150 },
+    { expectedMajor: 151, fixture: supportedChrome151 },
+  ])("accepts explicitly declared Chrome $expectedMajor", async ({ expectedMajor, fixture }) => {
+    const app = await createApp({ browserSupportRelease: testBrowserSupportRelease } as never);
+    const checked = await app.inject({
+      headers: fixture.headers,
+      method: "POST",
+      payload: fixture.body,
+      url: "/api/v1/support/check",
+    });
+
+    expect(checked.statusCode).toBe(200);
+    expect(checked.json()).toMatchObject({
+      browser: { brand: "Google Chrome", major: expectedMajor },
+      status: "supported",
+    });
+    await app.close();
+  });
 });
 
 describe("TDD-WP0-BRW-002 hard block", () => {
@@ -208,6 +237,7 @@ describe("TDD-WP0-BRW-002 hard block", () => {
           reason: expectedReason,
           supported_browsers: [
             { brand: "Google Chrome", major: 150 },
+            { brand: "Google Chrome", major: 151 },
             { brand: "Microsoft Edge", major: 150 },
           ],
         },

tests/e2e/wp4-01-editor-background.spec.ts

@@ -67,6 +67,20 @@ async function routeEditor(page: Page) {
   });
 }
 
+async function canvasFingerprint(page: Page) {
+  return page.getByLabel("编辑画布").evaluate((canvas: HTMLCanvasElement) => {
+    const context = canvas.getContext("2d");
+    if (!context) throw new Error("Canvas context unavailable.");
+    return [
+      ...context.getImageData(108, 720, 1, 1).data,
+      ...context.getImageData(324, 720, 1, 1).data,
+      ...context.getImageData(540, 720, 1, 1).data,
+      ...context.getImageData(756, 720, 1, 1).data,
+      ...context.getImageData(972, 720, 1, 1).data,
+    ];
+  });
+}
+
 test("TDD-WP4-BG-001 preserves overlays while switching the background", async ({ page }) => {
   await routeEditor(page);
   const saves: Array<Record<string, unknown>> = [];
@@ -144,3 +158,35 @@ test("TDD-WP4-BG-002 commits, reopens, undoes, and resets background processing"
   writeEvidence("TDD-WP4-BG-002-processing-controls", "pixel-diff.json", { preview_commit_undo_reset: true, export_source_canvas_state_stable: true });
   await page.screenshot({ fullPage: true, path: process.env.DADA_EVIDENCE_DIR_EDITOR ? resolve(process.env.DADA_EVIDENCE_DIR_EDITOR, "TDD-WP4-BG-002-processing-controls", "processing-controls.png") : undefined });
 });
+
+test("TDD-WP4-BG-002 previews background pixels before committing", async ({ page }) => {
+  await routeEditor(page);
+  const saves: Array<Record<string, unknown>> = [];
+  let version = 7;
+  await page.route(`**/api/v1/projects/${projectId}/state`, async (route) => {
+    saves.push(route.request().postDataJSON() as Record<string, unknown>);
+    version += 1;
+    await route.fulfill({ body: JSON.stringify({ save_status: "saved", state_version: version }), contentType: "application/json", status: 200 });
+  });
+  await page.goto(`${webUrl}/app/projects/${projectId}/editor`);
+  await page.getByRole("button", { name: "恢复原图" }).click();
+  await page.getByRole("button", { name: "应用调整" }).click();
+  await expect.poll(() => saves.length, { timeout: 4_000 }).toBeGreaterThan(0);
+  await expect.poll(async () => (await canvasFingerprint(page)).some((channel) => channel < 240)).toBe(true);
+  const baseline = (await canvasFingerprint(page)).join(",");
+
+  const ranges = page.locator(".editor-inspector input[type=range]");
+  await ranges.nth(0).fill("40");
+  await ranges.nth(1).fill("25");
+  await ranges.nth(2).fill("-35");
+  await ranges.nth(3).fill("70");
+  await ranges.nth(4).fill("100");
+  await expect.poll(async () => (await canvasFingerprint(page)).join(",")).not.toBe(baseline);
+
+  await page.getByRole("button", { name: "应用调整" }).click();
+  await expect.poll(() => saves.length, { timeout: 4_000 }).toBeGreaterThan(1);
+  const committed = saves.at(-1) as { canvas_state: typeof initialCanvasState };
+  expect(committed.canvas_state.background.adjustments).toMatchObject({
+    brightness: 40, contrast: 25, saturation: -35, sharpness: 100, temperature: 70,
+  });
+});

tests/e2e/wp4-02-editor-elements.spec.ts

@@ -26,7 +26,8 @@ const session = {
   user: { creator_name: "Canvas User", role: "user", social_id: "@canvas_user", status: "active", user_id: "00000000-0000-4000-8000-000000000501" },
 };
 
-const stickerRoot = process.env.DADA_STATIC_STICKER_ROOT ?? join(homedir(), "Desktop", "贴纸素材");
+const stickerRoot = process.env.DADA_STATIC_STICKER_ROOT
+  ?? join(homedir(), "Desktop", "sticker_web_replication_assets", "sticker_normal");
 const originalStickerFixtures: Readonly<Record<string, string>> = {
   STK001: join(stickerRoot, "sticker_part1", "01af6384c2a962d17f55736f9895b505.png"),
   STK002: join(stickerRoot, "sticker_part2", "011db0fb6ac4184e4a708374003bce66.png"),
@@ -131,6 +132,41 @@ test("TDD-WP4-CAN-001 keeps fifty elements editable and blocks the fifty-first",
   if (process.env.DADA_EVIDENCE_DIR_EDITOR_ELEMENTS) await page.screenshot({ fullPage: true, path: resolve(process.env.DADA_EVIDENCE_DIR_EDITOR_ELEMENTS, "TDD-WP4-CAN-001-fifty-elements", "fifty-elements.png") });
 });
 
+test("TDD-WP4-CAN-001 drags distant multi-selected objects as one group", async ({ page }) => {
+  const projectId = uuid(519);
+  const backend = {
+    canvas: canvas([sticker(1, { x: 0.2, y: 0.2 }, 0), sticker(2, { x: 0.8, y: 0.8 }, 1)]),
+    saves: 0,
+    version: 5,
+  };
+  await routeEditor(page, projectId, backend);
+  await page.goto(`${webUrl}/app/projects/${projectId}/editor`);
+  const stage = page.getByLabel("编辑画布");
+  const bounds = await stage.boundingBox();
+  if (!bounds) throw new Error("Canvas bounds unavailable.");
+  const point = (x: number, y: number) => ({ x: bounds.x + bounds.width * x, y: bounds.y + bounds.height * y });
+
+  await page.getByRole("button", { name: "多选模式" }).click();
+  await page.mouse.click(point(0.2, 0.2).x, point(0.2, 0.2).y);
+  await page.mouse.click(point(0.8, 0.8).x, point(0.8, 0.8).y);
+  await expect(page.getByRole("heading", { name: "已选 2 个对象" })).toBeVisible();
+
+  await page.mouse.move(point(0.2, 0.2).x, point(0.2, 0.2).y);
+  await page.mouse.down();
+  await page.mouse.move(point(0.3, 0.3).x, point(0.3, 0.3).y, { steps: 4 });
+  await page.mouse.up();
+
+  await expect.poll(() => backend.saves, { timeout: 4_000 }).toBeGreaterThan(0);
+  const [first, second] = backend.canvas.elements.map(({ position }) => position);
+  expect(first?.x).toBeCloseTo(0.3, 6);
+  expect(first?.y).toBeCloseTo(0.3, 6);
+  expect(second?.x).toBeCloseTo(0.9, 6);
+  expect(second?.y).toBeCloseTo(0.9, 6);
+  expect((first?.x ?? 0) - 0.2).toBeCloseTo((second?.x ?? 0) - 0.8, 10);
+  expect((first?.y ?? 0) - 0.2).toBeCloseTo((second?.y ?? 0) - 0.8, 10);
+  await expect(page.getByRole("heading", { name: "已选 2 个对象" })).toBeVisible();
+});
+
 test("TDD-WP4-STK-001 transforms, cycles, selects and reopens ordinary stickers", async ({ page }) => {
   const projectId = uuid(520);
   const backend = { canvas: canvas([sticker(1, { x: 0.5, y: 0.5 }, 0), sticker(2, { x: 0.5, y: 0.5 }, 1)]), saves: 0, version: 5 };

tests/e2e/wp4-03-text-editor.spec.ts

@@ -212,81 +212,3 @@ test("TDD-WP4-TXT-002 waits for the archived font and commits exact style ranges
   writeEvidence("TDD-WP4-TXT-002-font-metrics-ranges", "pixel-diff.json", { background_alpha_separate: true, clipped_visible_text: false, effective_font_size: 96 });
   if (process.env.DADA_EVIDENCE_DIR_TEXT_EDITOR) await page.screenshot({ fullPage: true, path: resolve(process.env.DADA_EVIDENCE_DIR_TEXT_EDITOR, "TDD-WP4-TXT-002-font-metrics-ranges", "font-styles.png") });
 });
-
-test("POSTV1-07 keeps the canvas anchored when the text template panel opens", async ({ page }) => {
-  const projectId = uuid(760);
-  const backend: Backend = { canvas: emptyCanvas(), recent: [], saves: 0, version: 5 };
-  await routeEditor(page, projectId, backend);
-  await page.goto(`${webUrl}/app/projects/${projectId}/editor`);
-
-  const stage = page.getByLabel("编辑画布");
-  const before = await stage.boundingBox();
-  if (!before) throw new Error("Canvas geometry is unavailable before opening text templates.");
-
-  await page.getByRole("button", { name: "文字模板", exact: true }).click();
-  await expect(page.locator(".editor-template-grid button")).toHaveCount(32);
-  const after = await stage.boundingBox();
-  if (!after) throw new Error("Canvas geometry is unavailable after opening text templates.");
-  const assetsPanelScroll = await page.getByLabel("素材与底图来源").evaluate((panel) => ({
-    clientHeight: panel.clientHeight,
-    overflowY: getComputedStyle(panel).overflowY,
-    scrollHeight: panel.scrollHeight,
-  }));
-
-  expect(Math.abs(after.x - before.x)).toBeLessThanOrEqual(1);
-  expect(Math.abs(after.y - before.y)).toBeLessThanOrEqual(1);
-  expect(Math.abs(after.width - before.width)).toBeLessThanOrEqual(1);
-  expect(Math.abs(after.height - before.height)).toBeLessThanOrEqual(1);
-  expect(assetsPanelScroll.overflowY).toBe("auto");
-  expect(assetsPanelScroll.scrollHeight).toBeGreaterThan(assetsPanelScroll.clientHeight);
-});
-
-test("POSTV1-07 keeps text selection stable and dismisses move feedback", async ({ page }) => {
-  const projectId = uuid(770);
-  const backend: Backend = { canvas: emptyCanvas(), recent: [], saves: 0, version: 6 };
-  await routeEditor(page, projectId, backend);
-  await page.goto(`${webUrl}/app/projects/${projectId}/editor`);
-  await page.getByRole("button", { name: "文字模板", exact: true }).click();
-  await page.getByRole("button", { name: /H003 生活分享家/ }).click();
-  await expect.poll(() => backend.canvas.elements.length).toBe(1);
-  await expect.poll(() => backend.saves, { timeout: 5_000 }).toBeGreaterThan(0);
-
-  await page.reload();
-  const stage = page.getByLabel("编辑画布");
-  const bounds = await stage.boundingBox();
-  const element = backend.canvas.elements[0];
-  if (!bounds || !element) throw new Error("Text selection geometry is unavailable.");
-  const positionBefore = structuredClone(element.position);
-  const savesBefore = backend.saves;
-  const clientX = bounds.x + bounds.width * element.position.x;
-  const clientY = bounds.y + bounds.height * element.position.y;
-
-  await page.mouse.move(clientX, clientY);
-  await page.mouse.down();
-  await expect(page.getByLabel("字体覆盖")).toBeVisible();
-  const selectedBounds = await stage.boundingBox();
-  const inspectorScroll = await page.getByLabel("对象参数").evaluate((panel) => ({
-    clientHeight: panel.clientHeight,
-    overflowY: getComputedStyle(panel).overflowY,
-    scrollHeight: panel.scrollHeight,
-  }));
-  if (!selectedBounds) throw new Error("Canvas geometry is unavailable after selecting text.");
-  expect(Math.abs(selectedBounds.y - bounds.y)).toBeLessThanOrEqual(1);
-  expect(inspectorScroll.overflowY).toBe("auto");
-  expect(inspectorScroll.scrollHeight).toBeGreaterThan(inspectorScroll.clientHeight);
-  await page.mouse.move(clientX + 1, clientY);
-  await page.mouse.up();
-
-  await expect(page.getByLabel("字体覆盖")).toBeVisible();
-  await page.waitForTimeout(800);
-  expect(backend.canvas.elements[0]?.position).toEqual(positionBefore);
-  expect(backend.saves).toBe(savesBefore);
-
-  await page.mouse.move(clientX, clientY);
-  await page.mouse.down();
-  await page.mouse.move(clientX + 12, clientY);
-  await page.mouse.up();
-  await expect(page.getByText("对象位置已提交", { exact: true })).toBeVisible();
-  await expect.poll(() => backend.saves, { timeout: 5_000 }).toBeGreaterThan(savesBefore);
-  await expect(page.getByText("对象位置已提交", { exact: true })).toBeHidden({ timeout: 5_000 });
-});

tests/helpers/browser-support-fixture.ts

@@ -1,7 +1,7 @@
 export const testBrowserSupportRelease = {
   appVersion: "1.2.3-test",
   browsers: [
-    { brand: "Google Chrome", fullVersion: "150.0.7339.1" },
+    { brand: "Google Chrome", fullVersion: "150.0.7339.1", supportedMajorVersions: [150, 151] },
     { brand: "Microsoft Edge", fullVersion: "150.0.4078.99" },
   ],
 } as const;

tests/package/wp7-07-final-release.test.mjs

@@ -10,7 +10,7 @@ function release() {
   return buildFinalReleaseRecord({
     appVersion: "0.0.0",
     browsers: [
-      { brand: "Google Chrome", fullVersion: "150.0.7871.187" },
+      { brand: "Google Chrome", fullVersion: "150.0.7871.187", supportedMajorVersions: [150, 151] },
       { brand: "Microsoft Edge", fullVersion: "151.0.4129.59" },
     ],
     buildCommit: "a".repeat(40),
@@ -26,6 +26,32 @@ test("TDD-WP7-REL-001 creates a browser-gate compatible first-version record", (
   assert.equal(record.fixedPort, 43121);
   assert.deepEqual(record.deferredExternalTasks, ["TASK-WP7-03", "TASK-WP7-04"]);
   assert.deepEqual(record.browsers.map(({ brand }) => brand).sort(), ["Google Chrome", "Microsoft Edge"]);
+  assert.deepEqual(record.browsers[0].supportedMajorVersions, [150, 151]);
+});
+
+test("TDD-WP7-REL-001 rejects unsafe or duplicate browser major lists", () => {
+  assert.throws(() => buildFinalReleaseRecord({
+    appVersion: "0.0.0",
+    browsers: [
+      { brand: "Google Chrome", fullVersion: "150.0.7871.187", supportedMajorVersions: [150, 150] },
+      { brand: "Microsoft Edge", fullVersion: "151.0.4129.59" },
+    ],
+    buildCommit: "a".repeat(40),
+    frozenFromCommit: "b".repeat(40),
+    recordedAt: "2026-08-04T06:00:00.000Z",
+    windows: { arch: "x64", build: "26200.8875", displayVersion: "25H2" },
+  }), /Google Chrome\.supportedMajorVersions/);
+  assert.throws(() => buildFinalReleaseRecord({
+    appVersion: "0.0.0",
+    browsers: [
+      { brand: "Google Chrome", fullVersion: "150.0.7871.187", supportedMajorVersions: [150, 151, 152, 153, 154, 155, 156, 157] },
+      { brand: "Microsoft Edge", fullVersion: "151.0.4129.59" },
+    ],
+    buildCommit: "a".repeat(40),
+    frozenFromCommit: "b".repeat(40),
+    recordedAt: "2026-08-04T06:00:00.000Z",
+    windows: { arch: "x64", build: "26200.8875", displayVersion: "25H2" },
+  }), /supportedMajorVersions\.total/);
 });
 
 test("TDD-WP7-SEC-001 rejects credential shapes and absolute user paths", () => {

tests/unit/wp4-01-editor-canvas.test.ts

@@ -1,8 +1,11 @@
 import { describe, expect, it } from "vitest";
 
 import {
+  adjustBackgroundPixels,
+  backgroundDrawPlan,
   CanvasEditHistory,
   createEditorCanvasState,
+  cssFilterForBackground,
   defaultBackgroundAdjustments,
   deserializeFabricCanvas,
   switchBackground,
@@ -24,6 +27,35 @@ const element = {
 };
 
 describe("TDD-WP4-BG-001/002 canvas boundary", () => {
+  it("builds valid filters and distinct contain/crop draw plans", () => {
+    const adjustments = { ...defaultBackgroundAdjustments(), brightness: 25, contrast: 15, saturation: -20 };
+    expect(cssFilterForBackground(adjustments)).toBe("brightness(125%) contrast(115%) saturate(80%)");
+    expect(cssFilterForBackground(defaultBackgroundAdjustments())).toBe("none");
+
+    expect(backgroundDrawPlan({ height: 200, width: 400 }, { height: 100, width: 100 }, { ...adjustments, fit: "fit" })).toEqual({
+      destination: { height: 50, width: 100, x: 0, y: 25 },
+      source: { height: 200, width: 400, x: 0, y: 0 },
+    });
+    expect(backgroundDrawPlan({ height: 200, width: 400 }, { height: 100, width: 100 }, { ...adjustments, fit: "crop" })).toEqual({
+      destination: { height: 100, width: 100, x: 0, y: 0 },
+      source: { height: 200, width: 200, x: 100, y: 0 },
+    });
+  });
+
+  it("changes pixels for temperature and sharpness without changing alpha", () => {
+    const flat = new Uint8ClampedArray([100, 100, 100, 255]);
+    expect([...adjustBackgroundPixels(flat, 1, 1, { sharpness: 0, temperature: 100 })]).toEqual([135, 108, 65, 255]);
+
+    const edged = new Uint8ClampedArray([
+      100, 100, 100, 255, 100, 100, 100, 255, 100, 100, 100, 255,
+      100, 100, 100, 255, 180, 180, 180, 255, 100, 100, 100, 255,
+      100, 100, 100, 255, 100, 100, 100, 255, 100, 100, 100, 255,
+    ]);
+    const sharpened = adjustBackgroundPixels(edged, 3, 3, { sharpness: 100, temperature: 0 });
+    expect(sharpened[16]).toBe(255);
+    expect(sharpened[19]).toBe(255);
+  });
+
   it("switches background without moving overlays, resets processing, and re-extracts palette", () => {
     const initial = createEditorCanvasState({ assetId: "00000000-0000-4000-8000-000000000010", ratio: "3:4" });
     const withOverlay = { ...initial, background: { ...initial.background, adjustments: { ...initial.background.adjustments, brightness: 42, filter: "mono" } }, elements: [element] };

tests/unit/wp4-02-editor-elements.test.ts

@@ -73,6 +73,10 @@ describe("TDD-WP4-CAN-001 canvas selection and limit", () => {
       identity(1).elementId,
       identity(2).elementId,
     ]);
+    expect(controller.selectAt({ x: 0.2, y: 0.2 }, { append: true, preserveSelection: true })).toEqual([
+      identity(1).elementId,
+      identity(2).elementId,
+    ]);
   });
 });
 
@@ -97,6 +101,19 @@ describe("TDD-WP4-STK-001 sticker transformations", () => {
     });
   });
 
+  it("uses one bounded delta for distant selected elements", () => {
+    const controller = new CanvasElementController(state([
+      sticker(1, { position: { x: 0.1, y: 0.2 } }),
+      sticker(2, { position: { x: 0.9, y: 0.8 } }),
+    ]));
+    controller.selectIds([identity(1).elementId, identity(2).elementId]);
+    controller.moveSelected({ x: 0.2, y: 0.3 }, { snap: false });
+    expect(controller.value.elements.map(({ position }) => position)).toEqual([
+      { x: 0.2, y: 0.4 },
+      { x: 1, y: 1 },
+    ]);
+  });
+
   it("duplicates, reorders and deletes selected stickers while preserving stable resource identity", () => {
     const controller = new CanvasElementController(state([sticker(1), sticker(2, { position: { x: 0.7, y: 0.7 } })]));
     controller.selectById(identity(1).elementId);