widget/ClipboardWriteRequestChild.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "mozilla/ClipboardWriteRequestChild.h"
   7
   8 #if defined(ACCESSIBILITY) && defined(XP_WIN)
   9 #  include "mozilla/a11y/Compatibility.h"
  10 #endif
  11 #include "mozilla/dom/ContentChild.h"
  12 #include "mozilla/net/CookieJarSettings.h"
  13 #include "nsITransferable.h"
  14
  15 namespace mozilla {
  16
  17 NS_IMPL_ISUPPORTS(ClipboardWriteRequestChild, nsIAsyncSetClipboardData)
  18
  19 NS_IMETHODIMP
  20 ClipboardWriteRequestChild::SetData(nsITransferable* aTransferable,
  21                                     nsIClipboardOwner* aOwner) {
  22   MOZ_ASSERT(aTransferable);
  23   // Callback should be notified if actor is destroyed.
  24   MOZ_ASSERT_IF(!CanSend(), !mIsValid && !mCallback);
  25
  26   if (!mIsValid) {
  27     return NS_ERROR_FAILURE;
  28   }
  29
  30 #if defined(ACCESSIBILITY) && defined(XP_WIN)
  31   a11y::Compatibility::SuppressA11yForClipboardCopy();
  32 #endif
  33
  34   mIsValid = false;
  35   IPCTransferable ipcTransferable;
  36   nsContentUtils::TransferableToIPCTransferable(aTransferable, &ipcTransferable,
  37                                                 false, nullptr);
  38   SendSetData(std::move(ipcTransferable));
  39   return NS_OK;
  40 }
  41
  42 NS_IMETHODIMP ClipboardWriteRequestChild::Abort(nsresult aReason) {
  43   // Callback should be notified if actor is destroyed.
  44   MOZ_ASSERT_IF(!CanSend(), !mIsValid && !mCallback);
  45
  46   if (!mIsValid || !NS_FAILED(aReason)) {
  47     return NS_ERROR_FAILURE;
  48   }
  49
  50   // Need to notify callback first to propagate reason properly.
  51   MaybeNotifyCallback(aReason);
  52   Unused << PClipboardWriteRequestChild::Send__delete__(this, aReason);
  53   return NS_OK;
  54 }
  55
  56 ipc::IPCResult ClipboardWriteRequestChild::Recv__delete__(nsresult aResult) {
  57   MaybeNotifyCallback(aResult);
  58   return IPC_OK();
  59 }
  60
  61 void ClipboardWriteRequestChild::ActorDestroy(ActorDestroyReason aReason) {
  62   MaybeNotifyCallback(NS_ERROR_ABORT);
  63 }
  64
  65 void ClipboardWriteRequestChild::MaybeNotifyCallback(nsresult aResult) {
  66   mIsValid = false;
  67   if (nsCOMPtr<nsIAsyncClipboardRequestCallback> callback =
  68           mCallback.forget()) {
  69     callback->OnComplete(aResult);
  70   }
  71 }
  72
  73 }  // namespace mozilla