1 files changed, 112 insertions, 0 deletions
diff --git a/dom/media/MediaStreamError.cpp b/dom/media/MediaStreamError.cpp
new file mode 100644
index 0000000000..27f1201261
--- /dev/null
+++ b/dom/media/MediaStreamError.cpp
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MediaStreamError.h"
+#include "mozilla/dom/MediaStreamErrorBinding.h"
+#include "mozilla/dom/Promise.h"
+#include "nsContentUtils.h"
+
+namespace mozilla {
+
+BaseMediaMgrError::BaseMediaMgrError(Name aName, const nsACString& aMessage,
+                                     const nsAString& aConstraint)
+    : mMessage(aMessage), mConstraint(aConstraint), mName(aName) {
+#define MAP_MEDIAERR(name, msg) \
+  { Name::name, #name, msg }
+
+  static struct {
+    Name mName;
+    const char* mNameString;
+    const char* mMessage;
+  } map[] = {
+      MAP_MEDIAERR(AbortError, "The operation was aborted."),
+      MAP_MEDIAERR(InvalidStateError, "The object is in an invalid state."),
+      MAP_MEDIAERR(NotAllowedError,
+                   "The request is not allowed by the user agent "
+                   "or the platform in the current context."),
+      MAP_MEDIAERR(NotFoundError, "The object can not be found here."),
+      MAP_MEDIAERR(NotReadableError, "The I/O read operation failed."),
+      MAP_MEDIAERR(OverconstrainedError, "Constraints could be not satisfied."),
+      MAP_MEDIAERR(SecurityError, "The operation is insecure."),
+      MAP_MEDIAERR(TypeError, ""),
+  };
+  for (auto& entry : map) {
+    if (entry.mName == mName) {
+      mNameString.AssignASCII(entry.mNameString);
+      if (mMessage.IsEmpty()) {
+        mMessage.AssignASCII(entry.mMessage);
+      }
+      return;
+    }
+  }
+  MOZ_ASSERT_UNREACHABLE("Unknown error type");
+}
+
+NS_IMPL_ISUPPORTS0(MediaMgrError)
+
+void MediaMgrError::Reject(dom::Promise* aPromise) const {
+  switch (mName) {
+    case Name::AbortError:
+      aPromise->MaybeRejectWithAbortError(mMessage);
+      return;
+    case Name::InvalidStateError:
+      aPromise->MaybeRejectWithInvalidStateError(mMessage);
+      return;
+    case Name::NotAllowedError:
+      aPromise->MaybeRejectWithNotAllowedError(mMessage);
+      return;
+    case Name::NotFoundError:
+      aPromise->MaybeRejectWithNotFoundError(mMessage);
+      return;
+    case Name::NotReadableError:
+      aPromise->MaybeRejectWithNotReadableError(mMessage);
+      return;
+    case Name::OverconstrainedError: {
+      // TODO: Add OverconstrainedError type.
+      // https://bugzilla.mozilla.org/show_bug.cgi?id=1453013
+      nsCOMPtr<nsPIDOMWindowInner> window =
+          do_QueryInterface(aPromise->GetGlobalObject());
+      aPromise->MaybeReject(MakeRefPtr<dom::MediaStreamError>(window, *this));
+      return;
+    }
+    case Name::SecurityError:
+      aPromise->MaybeRejectWithSecurityError(mMessage);
+      return;
+    case Name::TypeError:
+      aPromise->MaybeRejectWithTypeError(mMessage);
+      return;
+      // -Wswitch ensures all cases are covered so don't add default:.
+  }
+}
+
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(MediaStreamError, mParent)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaStreamError)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaStreamError)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaStreamError)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+  NS_INTERFACE_MAP_ENTRY(MediaStreamError)
+NS_INTERFACE_MAP_END
+
+JSObject* MediaStreamError::WrapObject(JSContext* aCx,
+                                       JS::Handle<JSObject*> aGivenProto) {
+  return MediaStreamError_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+void MediaStreamError::GetName(nsAString& aName) const { aName = mNameString; }
+
+void MediaStreamError::GetMessage(nsAString& aMessage) const {
+  CopyUTF8toUTF16(mMessage, aMessage);
+}
+
+void MediaStreamError::GetConstraint(nsAString& aConstraint) const {
+  aConstraint = mConstraint;
+}
+
+}  // namespace dom
+}  // namespace mozilla