1 files changed, 127 insertions, 0 deletions
diff --git a/toolkit/components/pdfjs/content/build/pdf.sandbox.external.sys.mjs b/toolkit/components/pdfjs/content/build/pdf.sandbox.external.sys.mjs
new file mode 100644
index 0000000000..3dfe4eb2e1
--- /dev/null
+++ b/toolkit/components/pdfjs/content/build/pdf.sandbox.external.sys.mjs
@@ -0,0 +1,127 @@
+/* Copyright 2023 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export class SandboxSupportBase {
+  constructor(win) {
+    this.win = win;
+    this.timeoutIds = new Map();
+    this.commFun = null;
+  }
+  destroy() {
+    this.commFun = null;
+    for (const id of this.timeoutIds.values()) {
+      this.win.clearTimeout(id);
+    }
+    this.timeoutIds = null;
+  }
+  exportValueToSandbox(val) {
+    throw new Error("Not implemented");
+  }
+  importValueFromSandbox(val) {
+    throw new Error("Not implemented");
+  }
+  createErrorForSandbox(errorMessage) {
+    throw new Error("Not implemented");
+  }
+  callSandboxFunction(name, args) {
+    try {
+      args = this.exportValueToSandbox(args);
+      this.commFun(name, args);
+    } catch (e) {
+      this.win.console.error(e);
+    }
+  }
+  createSandboxExternals() {
+    const externals = {
+      setTimeout: (callbackId, nMilliseconds) => {
+        if (typeof callbackId !== "number" || typeof nMilliseconds !== "number") {
+          return;
+        }
+        if (callbackId === 0) {
+          this.win.clearTimeout(this.timeoutIds.get(callbackId));
+        }
+        const id = this.win.setTimeout(() => {
+          this.timeoutIds.delete(callbackId);
+          this.callSandboxFunction("timeoutCb", {
+            callbackId,
+            interval: false
+          });
+        }, nMilliseconds);
+        this.timeoutIds.set(callbackId, id);
+      },
+      clearTimeout: callbackId => {
+        this.win.clearTimeout(this.timeoutIds.get(callbackId));
+        this.timeoutIds.delete(callbackId);
+      },
+      setInterval: (callbackId, nMilliseconds) => {
+        if (typeof callbackId !== "number" || typeof nMilliseconds !== "number") {
+          return;
+        }
+        const id = this.win.setInterval(() => {
+          this.callSandboxFunction("timeoutCb", {
+            callbackId,
+            interval: true
+          });
+        }, nMilliseconds);
+        this.timeoutIds.set(callbackId, id);
+      },
+      clearInterval: callbackId => {
+        this.win.clearInterval(this.timeoutIds.get(callbackId));
+        this.timeoutIds.delete(callbackId);
+      },
+      alert: cMsg => {
+        if (typeof cMsg !== "string") {
+          return;
+        }
+        this.win.alert(cMsg);
+      },
+      confirm: cMsg => {
+        if (typeof cMsg !== "string") {
+          return false;
+        }
+        return this.win.confirm(cMsg);
+      },
+      prompt: (cQuestion, cDefault) => {
+        if (typeof cQuestion !== "string" || typeof cDefault !== "string") {
+          return null;
+        }
+        return this.win.prompt(cQuestion, cDefault);
+      },
+      parseURL: cUrl => {
+        const url = new this.win.URL(cUrl);
+        const props = ["hash", "host", "hostname", "href", "origin", "password", "pathname", "port", "protocol", "search", "searchParams", "username"];
+        return Object.fromEntries(props.map(name => [name, url[name].toString()]));
+      },
+      send: data => {
+        if (!data) {
+          return;
+        }
+        const event = new this.win.CustomEvent("updatefromsandbox", {
+          detail: this.importValueFromSandbox(data)
+        });
+        this.win.dispatchEvent(event);
+      }
+    };
+    Object.setPrototypeOf(externals, null);
+    return (name, args) => {
+      try {
+        const result = externals[name](...args);
+        return this.exportValueToSandbox(result);
+      } catch (error) {
+        throw this.createErrorForSandbox(error?.toString() ?? "");
+      }
+    };
+  }
+}
+\ No newline at end of file