The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/file/FileRequest.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,148 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "FileRequest.h"
    1.11 +
    1.12 +#include "mozilla/EventDispatcher.h"
    1.13 +#include "mozilla/dom/FileRequestBinding.h"
    1.14 +#include "nsCxPusher.h"
    1.15 +#include "nsError.h"
    1.16 +#include "nsIDOMProgressEvent.h"
    1.17 +#include "nsDOMClassInfoID.h"
    1.18 +#include "FileHelper.h"
    1.19 +#include "LockedFile.h"
    1.20 +
    1.21 +using namespace mozilla;
    1.22 +
    1.23 +USING_FILE_NAMESPACE
    1.24 +
    1.25 +FileRequest::FileRequest(nsPIDOMWindow* aWindow)
    1.26 +  : DOMRequest(aWindow), mWrapAsDOMRequest(false)
    1.27 +{
    1.28 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.29 +}
    1.30 +
    1.31 +FileRequest::~FileRequest()
    1.32 +{
    1.33 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.34 +}
    1.35 +
    1.36 +// static
    1.37 +already_AddRefed<FileRequest>
    1.38 +FileRequest::Create(nsPIDOMWindow* aOwner, LockedFile* aLockedFile,
    1.39 +                    bool aWrapAsDOMRequest)
    1.40 +{
    1.41 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.42 +
    1.43 +  nsRefPtr<FileRequest> request = new FileRequest(aOwner);
    1.44 +  request->mLockedFile = aLockedFile;
    1.45 +  request->mWrapAsDOMRequest = aWrapAsDOMRequest;
    1.46 +
    1.47 +  return request.forget();
    1.48 +}
    1.49 +
    1.50 +nsresult
    1.51 +FileRequest::PreHandleEvent(EventChainPreVisitor& aVisitor)
    1.52 +{
    1.53 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.54 +
    1.55 +  aVisitor.mCanHandle = true;
    1.56 +  aVisitor.mParentTarget = mLockedFile;
    1.57 +  return NS_OK;
    1.58 +}
    1.59 +
    1.60 +nsresult
    1.61 +FileRequest::NotifyHelperCompleted(FileHelper* aFileHelper)
    1.62 +{
    1.63 +  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
    1.64 +
    1.65 +  nsresult rv = aFileHelper->mResultCode;
    1.66 +
    1.67 +  // If the request failed then fire error event and return.
    1.68 +  if (NS_FAILED(rv)) {
    1.69 +    FireError(rv);
    1.70 +    return NS_OK;
    1.71 +  }
    1.72 +
    1.73 +  // Otherwise we need to get the result from the helper.
    1.74 +  nsIScriptContext* sc = GetContextForEventHandlers(&rv);
    1.75 +  NS_ENSURE_STATE(sc);
    1.76 +
    1.77 +  AutoJSContext cx;
    1.78 +  NS_ASSERTION(cx, "Failed to get a context!");
    1.79 +
    1.80 +  JS::Rooted<JS::Value> result(cx);
    1.81 +
    1.82 +  JS::Rooted<JSObject*> global(cx, sc->GetWindowProxy());
    1.83 +  NS_ASSERTION(global, "Failed to get global object!");
    1.84 +
    1.85 +  JSAutoCompartment ac(cx, global);
    1.86 +
    1.87 +  rv = aFileHelper->GetSuccessResult(cx, &result);
    1.88 +  if (NS_FAILED(rv)) {
    1.89 +    NS_WARNING("GetSuccessResult failed!");
    1.90 +  }
    1.91 +
    1.92 +  if (NS_SUCCEEDED(rv)) {
    1.93 +    FireSuccess(result);
    1.94 +  }
    1.95 +  else {
    1.96 +    FireError(rv);
    1.97 +  }
    1.98 +
    1.99 +  return NS_OK;
   1.100 +}
   1.101 +
   1.102 +NS_IMPL_CYCLE_COLLECTION_INHERITED(FileRequest, DOMRequest,
   1.103 +                                   mLockedFile)
   1.104 +
   1.105 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(FileRequest)
   1.106 +NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
   1.107 +
   1.108 +NS_IMPL_ADDREF_INHERITED(FileRequest, DOMRequest)
   1.109 +NS_IMPL_RELEASE_INHERITED(FileRequest, DOMRequest)
   1.110 +
   1.111 +// virtual
   1.112 +JSObject*
   1.113 +FileRequest::WrapObject(JSContext* aCx)
   1.114 +{
   1.115 +  if (mWrapAsDOMRequest) {
   1.116 +    return DOMRequest::WrapObject(aCx);
   1.117 +  }
   1.118 +  return FileRequestBinding::Wrap(aCx, this);
   1.119 +}
   1.120 +
   1.121 +LockedFile*
   1.122 +FileRequest::GetLockedFile() const
   1.123 +{
   1.124 +  MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
   1.125 +  return mLockedFile;
   1.126 +}
   1.127 +
   1.128 +void
   1.129 +FileRequest::FireProgressEvent(uint64_t aLoaded, uint64_t aTotal)
   1.130 +{
   1.131 +  if (NS_FAILED(CheckInnerWindowCorrectness())) {
   1.132 +    return;
   1.133 +  }
   1.134 +
   1.135 +  nsCOMPtr<nsIDOMEvent> event;
   1.136 +  nsresult rv = NS_NewDOMProgressEvent(getter_AddRefs(event), this,
   1.137 +                                       nullptr, nullptr);
   1.138 +  if (NS_FAILED(rv)) {
   1.139 +    return;
   1.140 +  }
   1.141 +
   1.142 +  nsCOMPtr<nsIDOMProgressEvent> progress = do_QueryInterface(event);
   1.143 +  MOZ_ASSERT(progress);
   1.144 +  rv = progress->InitProgressEvent(NS_LITERAL_STRING("progress"), false, false,
   1.145 +                                   false, aLoaded, aTotal);
   1.146 +  if (NS_FAILED(rv)) {
   1.147 +    return;
   1.148 +  }
   1.149 +
   1.150 +  DispatchTrustedEvent(event);
   1.151 +}