Port internal TS code to JS (#6793)

Co-authored-by: Ryan Dahl <ry@tinyclouds.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/cli/js2/40_permissions.js b/cli/js2/40_permissions.js
new file mode 100644
index 000000000..4aebc94e7
--- /dev/null
+++ b/cli/js2/40_permissions.js
@@ -0,0 +1,49 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+((window) => {
+  const { sendSync } = window.__bootstrap.dispatchJson;
+
+  function opQuery(desc) {
+    return sendSync("op_query_permission", desc).state;
+  }
+
+  function opRevoke(desc) {
+    return sendSync("op_revoke_permission", desc).state;
+  }
+
+  function opRequest(desc) {
+    return sendSync("op_request_permission", desc).state;
+  }
+
+  class PermissionStatus {
+    constructor(state) {
+      this.state = state;
+    }
+    // TODO(kt3k): implement onchange handler
+  }
+
+  class Permissions {
+    query(desc) {
+      const state = opQuery(desc);
+      return Promise.resolve(new PermissionStatus(state));
+    }
+
+    revoke(desc) {
+      const state = opRevoke(desc);
+      return Promise.resolve(new PermissionStatus(state));
+    }
+
+    request(desc) {
+      const state = opRequest(desc);
+      return Promise.resolve(new PermissionStatus(state));
+    }
+  }
+
+  const permissions = new Permissions();
+
+  window.__bootstrap.permissions = {
+    permissions,
+    Permissions,
+    PermissionStatus,
+  };
+})(this);