fix(App): canvas use getSameOriginUrl

packages/uni-app-plus/src/helpers/file.ts

@@ -7,3 +7,77 @@ export function getExtName(path: string) {
   const array = path.split('.')
   return array.length > 1 ? '.' + array[array.length - 1] : ''
 }
+
+function getBase64(path: string): Promise<string> {
+  return new Promise(function (resolve, reject) {
+    // H5+ 沙箱外路径在iOS无法使用 plus.io 读取
+    function onError() {
+      const bitmap = new plus.nativeObj.Bitmap!(
+        `bitmap_${Date.now()}_${Math.random()}}`
+      )
+      bitmap.load(
+        path,
+        function () {
+          resolve(bitmap.toBase64Data())
+          bitmap.clear()
+        },
+        function (err) {
+          bitmap.clear()
+          reject(err)
+        }
+      )
+    }
+    plus.io.resolveLocalFileSystemURL(
+      path,
+      function (entry) {
+        ;(entry as unknown as PlusIoFileEntry).file(function (file) {
+          var fileReader = new plus.io.FileReader!()
+          fileReader.onload = function (data) {
+            resolve((data.target as unknown as PlusIoFileReader).result!)
+          }
+          fileReader.onerror = onError
+          fileReader.readAsDataURL(file)
+        }, onError)
+      },
+      onError
+    )
+  })
+}
+
+function download(url: string): Promise<string> {
+  return new Promise(function (resolve, reject) {
+    if (url.indexOf('http://') !== 0 && url.indexOf('https://') !== 0) {
+      resolve(url)
+      return
+    }
+    plus.downloader
+      .createDownload(
+        url,
+        {
+          filename: '_doc/uniapp_temp/download/',
+        },
+        function (d, status) {
+          if (status === 200) {
+            resolve(d.filename!)
+          } else {
+            reject(new Error('network fail'))
+          }
+        }
+      )
+      .start()
+  })
+}
+
+export function getSameOriginUrl(url: string) {
+  return download(url).then(function (url) {
+    // WKWebView
+    interface WindowExt extends Window {
+      webkit?: { messageHandlers: any }
+    }
+    const g = window as WindowExt
+    if (g.webkit && g.webkit.messageHandlers) {
+      return getBase64(url)
+    }
+    return plus.io.convertLocalFileSystemURL(url)
+  })
+}

packages/uni-app-plus/src/platform/index.ts

@@ -16,9 +16,7 @@ export {
 } from '../service/api/ui/mediaQueryObserver'
 
 export { saveImage } from './saveImage'
-export function getSameOriginUrl(url: string): Promise<string> {
-  return Promise.resolve(url)
-}
+export { getSameOriginUrl } from '../helpers/file'
 export { TEMP_PATH } from '../service/api/constants'
 
 export {