feat: 增加下载分享检查功能

miniprogram/pages/shape/index.json

@@ -8,6 +8,7 @@
         "van-divider": "@vant/weapp/divider/index",
         "van-icon": "@vant/weapp/icon/index",
         "van-popup": "@vant/weapp/popup/index",
+        "van-dialog": "@vant/weapp/dialog/index",
         "toy-button": "../../ui/button/button",
         "shape-card": "../../components/shape-card/shape-card",
         "shape-picker": "../../components/shape-picker/shape-picker",

miniprogram/pages/shape/index.ts

@@ -2,6 +2,10 @@ import { SHAPES, ShapeCard } from '../../constants/shapes';
 import { WATER_COLORS, PAPER_SIZE } from '../../constants/colors';
 import ShapeDrawService from '../../service/shapeDrawService';
 import { checkAndSaveImage } from '../../utils/saveImage';
+import {
+    shouldShowShareGuide,
+    recordShareSuccess,
+} from '../../utils/shareGuide';
 
 
 Page({
@@ -20,6 +24,7 @@ Page({
         currentIndex: 0,
         currentColor: '',
         isPCDevtool: false,
+        showShareDialog: false, // 显示分享引导弹窗
     },
 
     onLoad() {
@@ -263,12 +268,16 @@ Page({
     },
 
     onShareAppMessage() {
+        // 记录分享成功（用户真正分享了）
+        recordShareSuccess();
         return {
             title: '涂鸦丫-涂色|识字|画画|打印',
             path: '/pages/index/index',
         };
     },
     onShareTimeline() {
+        // 记录分享成功（用户真正分享了）
+        recordShareSuccess();
         return {
             title: '涂鸦丫-涂色|识字|画画|打印',
             query: '/pages/index/index',
@@ -277,10 +286,55 @@ Page({
 
     /** 下载打印 */
     exportToPrint() {
-        if (this.canvas && this.data.shapeList.length > 0) {
-            checkAndSaveImage(this.canvas);
+        if (!this.canvas || this.data.shapeList.length <= 0) {
             return;
         }
+
+        // 检查是否需要显示分享引导
+        if (shouldShowShareGuide()) {
+            this.setData({ showShareDialog: true });
+            return;
+        }
+
+        // 直接下载
+        checkAndSaveImage(this.canvas);
+    },
+
+    /** 关闭分享引导弹窗 */
+    onCloseShareDialog() {
+        this.setData({ showShareDialog: false });
+    },
+
+    /** 点击转发按钮 */
+    onShareToFriend() {
+        // 记录分享成功（用户点击了分享按钮，视为已分享）
+        recordShareSuccess();
+        this.setData({ showShareDialog: false });
+        // 允许继续下载
+        if (this.canvas && this.data.shapeList.length > 0) {
+            checkAndSaveImage(this.canvas);
+        }
+        wx.showToast({
+            title: '分享后即可继续下载',
+            icon: 'success',
+            duration: 2000,
+        });
+    },
+
+    /** 点击分享到朋友圈按钮 */
+    onShareToTimeline() {
+        // 记录分享成功（用户点击了分享按钮，视为已分享）
+        recordShareSuccess();
+        this.setData({ showShareDialog: false });
+        // 允许继续下载
+        if (this.canvas && this.data.shapeList.length > 0) {
+            checkAndSaveImage(this.canvas);
+        }
+        wx.showToast({
+            title: '分享后即可继续下载',
+            icon: 'success',
+            duration: 2000,
+        });
     },
 
     onUnload() {

miniprogram/pages/shape/index.wxml

@@ -67,6 +67,16 @@
     </view>
     <view class="empty"></view>
 </view>
+<van-dialog
+    show="{{showShareDialog}}"
+    title="分享解锁下载"
+    message="今日免费下载次数已用完，分享给好友或朋友圈后即可继续免费下载"
+    show-cancel-button
+    confirm-button-text="转发给好友"
+    cancel-button-text="分享到朋友圈"
+    bind:confirm="onShareToFriend"
+    bind:cancel="onShareToTimeline"
+    bind:close="onCloseShareDialog" />
 <view class="bottom-btn-box">
     <toy-button
         openType="share"