The Tor Browser: dom/activities/src/Activity.cpp@a63d609f5ebe

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "Activity.h"

     7 #include "nsContentUtils.h"

     8 #include "nsDOMClassInfo.h"

     9 #include "nsIConsoleService.h"

    10 #include "nsIDocShell.h"

    11 #include "nsIDocument.h"

    13 using namespace mozilla::dom;

    15 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(Activity)

    16 NS_INTERFACE_MAP_END_INHERITING(DOMRequest)

    18 NS_IMPL_ADDREF_INHERITED(Activity, DOMRequest)

    19 NS_IMPL_RELEASE_INHERITED(Activity, DOMRequest)

    21 NS_IMPL_CYCLE_COLLECTION_INHERITED(Activity, DOMRequest,

    22                                    mProxy)

    24 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(Activity, DOMRequest)

    25 NS_IMPL_CYCLE_COLLECTION_TRACE_END

    27 /* virtual */ JSObject*

    28 Activity::WrapObject(JSContext* aCx)

    29 {

    30   return MozActivityBinding::Wrap(aCx, this);

    31 }

    33 nsresult

    34 Activity::Initialize(nsPIDOMWindow* aWindow,

    35                      JSContext* aCx,

    36                      const ActivityOptions& aOptions)

    37 {

    38   MOZ_ASSERT(aWindow);

    40   nsCOMPtr<nsIDocument> document = aWindow->GetExtantDoc();

    42   bool isActive;

    43   aWindow->GetDocShell()->GetIsActive(&isActive);

    45   if (!isActive &&

    46       !nsContentUtils::IsChromeDoc(document)) {

    47     nsCOMPtr<nsIDOMRequestService> rs =

    48       do_GetService("@mozilla.org/dom/dom-request-service;1");

    49     rs->FireErrorAsync(static_cast<DOMRequest*>(this),

    50                        NS_LITERAL_STRING("NotUserInput"));

    52     nsCOMPtr<nsIConsoleService> console(

    53       do_GetService("@mozilla.org/consoleservice;1"));

    54     NS_ENSURE_TRUE(console, NS_OK);

    56     nsString message =

    57       NS_LITERAL_STRING("Can only start activity from user input or chrome code");

    58     console->LogStringMessage(message.get());

    60     return NS_OK;

    61   }

    63   // Instantiate a JS proxy that will do the child <-> parent communication

    64   // with the JS implementation of the backend.

    65   nsresult rv;

    66   mProxy = do_CreateInstance("@mozilla.org/dom/activities/proxy;1", &rv);

    67   NS_ENSURE_SUCCESS(rv, rv);

    69   JS::Rooted<JS::Value> optionsValue(aCx);

    70   if (!aOptions.ToObject(aCx, &optionsValue)) {

    71     return NS_ERROR_FAILURE;

    72   }

    74   mProxy->StartActivity(static_cast<nsIDOMDOMRequest*>(this), optionsValue, aWindow);

    75   return NS_OK;

    76 }

    78 Activity::~Activity()

    79 {

    80   if (mProxy) {

    81     mProxy->Cleanup();

    82   }

    83 }

    85 Activity::Activity(nsPIDOMWindow* aWindow)

    86   : DOMRequest(aWindow)

    87 {

    88   MOZ_ASSERT(IsDOMBinding());

    89 }

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