fix: focus latest canvas agent result by prompt

app/(chat)/api/chat/route.ts

@@ -76,7 +76,9 @@ import {
 import { buildCanvasAgentResultViewOperation } from "@/lib/canvas/agent-result-view";
 import {
   buildCanvasAgentComparisonViewPlan,
+  buildCanvasAgentLatestResultViewPlan,
   hasCanvasAgentComparisonViewIntent,
+  hasCanvasAgentLatestResultViewIntent,
 } from "@/lib/canvas/agent-view-intent";
 import {
   buildCanvasAgentPanViewPlan,
@@ -3184,15 +3186,28 @@ export async function POST(request: Request) {
 
       const lowerText = text.toLowerCase();
       const hasComparisonViewIntent = hasCanvasAgentComparisonViewIntent(text);
+      const hasLatestResultViewIntent = hasCanvasAgentLatestResultViewIntent(text);
       const hasPanViewIntent = hasCanvasAgentPanViewIntent(text);
       const hasViewKeyword =
         hasComparisonViewIntent ||
+        hasLatestResultViewIntent ||
         hasPanViewIntent ||
         /视角|视野|画布|聚焦|定位|居中|看全局|看整体|看全部|缩小|放大|拉近|拉远|zoom/.test(
           lowerText
         );
       if (!hasViewKeyword) return null;
 
+      const viewOperationId = `${message.id}:canvas-view:${Date.now()}`;
+
+      if (hasLatestResultViewIntent) {
+        const latestResultViewPlan = buildCanvasAgentLatestResultViewPlan({
+          userText: text,
+          projectId: contextPayload.projectId,
+          operationId: viewOperationId,
+        });
+        if (latestResultViewPlan) return latestResultViewPlan;
+      }
+
       const hasMediaMutationKeyword =
         /生成|出图|做一版|再出|换|改|编辑|抠图|去水印|高清|清晰|扩图|裁剪|删除|替换|背景|视频|模型|洗图|重绘|尺寸|像素|分辨率/.test(
           lowerText
@@ -3216,7 +3231,6 @@ export async function POST(request: Request) {
         null;
       const hasSpecificFocusTarget =
         explicitTargetNodeIds.length > 0 || Boolean(anchorNode?.nodeId);
-      const viewOperationId = `${message.id}:canvas-view:${Date.now()}`;
 
       if (hasComparisonViewIntent) {
         const comparisonViewPlan = buildCanvasAgentComparisonViewPlan({

lib/canvas/agent-view-intent.ts

@@ -40,6 +40,27 @@ export function hasCanvasAgentComparisonViewIntent(userText: string) {
   );
 }
 
+export function hasCanvasAgentLatestResultViewIntent(userText: string) {
+  const text = userText.trim().toLowerCase();
+  if (!text) return false;
+
+  const hasLatestResultTarget =
+    /刚生成|刚才生成|最新(?:的)?(?:结果|图片|图|生成)|最近(?:的)?(?:结果|图片|图|生成)|上次生成|最后生成|刚出(?:的)?(?:图|结果)|新结果|新图/.test(
+      text
+    );
+  if (!hasLatestResultTarget) return false;
+
+  const hasViewVerb =
+    /聚焦|定位|居中|找到|跳到|看(?:看|一下|清楚)?|放大|拉近|focus|locate|zoom/.test(
+      text
+    );
+  if (!hasViewVerb) return false;
+
+  return !/生成(?:一|个|张|幅|段)|出图|做一版|再出|换|改|编辑|抠图|去水印|高清|清晰|扩图|裁剪|删除|替换|背景|视频|模型|洗图|重绘|尺寸|像素|分辨率/.test(
+    text
+  );
+}
+
 export function resolveCanvasAgentComparisonNodeIds(params: {
   context: CanvasAgentContext;
   maxItems?: number;
@@ -117,3 +138,26 @@ export function buildCanvasAgentComparisonViewPlan(params: {
     reason: params.reason || "focus_canvas_comparison_targets",
   };
 }
+
+export function buildCanvasAgentLatestResultViewPlan(params: {
+  userText: string;
+  projectId: string;
+  operationId: string;
+  reason?: string;
+}): CanvasViewOperationPlan | null {
+  const projectId = String(params.projectId || "").trim();
+  const operationId = String(params.operationId || "").trim();
+  if (!projectId || !operationId) return null;
+  if (!hasCanvasAgentLatestResultViewIntent(params.userText)) return null;
+
+  return {
+    version: 1,
+    viewOperationId: `${operationId}:view`,
+    operation: "focus_latest_result",
+    projectId,
+    padding: 120,
+    durationMs: 360,
+    persist: false,
+    reason: params.reason || "focus_latest_canvas_agent_result",
+  };
+}

tests/routes/canvas-chat-helpers.test.ts

@@ -73,7 +73,9 @@ import { resolveCanvasAgentMediaPlacements } from "@/lib/canvas/agent-placement"
 import { buildCanvasAgentResultViewOperation } from "@/lib/canvas/agent-result-view";
 import {
   buildCanvasAgentComparisonViewPlan,
+  buildCanvasAgentLatestResultViewPlan,
   hasCanvasAgentComparisonViewIntent,
+  hasCanvasAgentLatestResultViewIntent,
   resolveCanvasAgentComparisonNodeIds,
 } from "@/lib/canvas/agent-view-intent";
 import {
@@ -2038,6 +2040,26 @@ test.describe("canvas chat pure helpers", () => {
     ).toEqual(["image-1", "agent-result-1"]);
   });
 
+  test("builds latest-result view plans for follow-up focus requests", () => {
+    expect(hasCanvasAgentLatestResultViewIntent("聚焦刚生成结果")).toBe(true);
+    expect(hasCanvasAgentLatestResultViewIntent("放大看看最新结果")).toBe(true);
+    expect(hasCanvasAgentLatestResultViewIntent("生成一张新图")).toBe(false);
+
+    expect(
+      buildCanvasAgentLatestResultViewPlan({
+        userText: "帮我定位到刚生成的图",
+        projectId: plannerContext.projectId || "",
+        operationId: "operation-latest",
+      })
+    ).toMatchObject({
+      viewOperationId: "operation-latest:view",
+      operation: "focus_latest_result",
+      projectId: plannerContext.projectId,
+      persist: false,
+      reason: "focus_latest_canvas_agent_result",
+    });
+  });
+
   test("resolves latest-result and pan canvas view operations", () => {
     expect(
       resolveCanvasViewOperationTargetNodeIds({