gecko/dom/activities/Activity.cpp

105 lines
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "Activity.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/ContentChild.h"
#include "nsContentUtils.h"
#include "nsDOMClassInfo.h"
#include "nsIConsoleService.h"
#include "nsIDocShell.h"
#include "nsIDocument.h"
using namespace mozilla::dom;
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(Activity)
NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
NS_IMPL_ADDREF_INHERITED(Activity, DOMRequest)
NS_IMPL_RELEASE_INHERITED(Activity, DOMRequest)
NS_IMPL_CYCLE_COLLECTION_INHERITED(Activity, DOMRequest,
mProxy)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(Activity, DOMRequest)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
/* virtual */ JSObject*
Activity::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return MozActivityBinding::Wrap(aCx, this, aGivenProto);
}
nsresult
Activity::Initialize(nsPIDOMWindowInner* aWindow,
JSContext* aCx,
const ActivityOptions& aOptions)
{
MOZ_ASSERT(aWindow);
nsCOMPtr<nsIDocument> document = aWindow->GetExtantDoc();
bool isActive;
aWindow->GetDocShell()->GetIsActive(&isActive);
if (!isActive &&
!nsContentUtils::IsChromeDoc(document)) {
nsCOMPtr<nsIDOMRequestService> rs =
do_GetService("@mozilla.org/dom/dom-request-service;1");
rs->FireErrorAsync(static_cast<DOMRequest*>(this),
NS_LITERAL_STRING("NotUserInput"));
nsCOMPtr<nsIConsoleService> console(
do_GetService("@mozilla.org/consoleservice;1"));
NS_ENSURE_TRUE(console, NS_OK);
nsString message =
NS_LITERAL_STRING("Can only start activity from user input or chrome code");
console->LogStringMessage(message.get());
return NS_OK;
}
// Instantiate a JS proxy that will do the child <-> parent communication
// with the JS implementation of the backend.
nsresult rv;
mProxy = do_CreateInstance("@mozilla.org/dom/activities/proxy;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
// We're about the pass the dictionary to a JS-implemented component, so
// rehydrate it in a system scode so that security wrappers don't get in the
// way. See bug 1161748 comment 16.
bool ok;
JS::Rooted<JS::Value> optionsValue(aCx);
{
JSAutoCompartment ac(aCx, xpc::PrivilegedJunkScope());
ok = ToJSValue(aCx, aOptions, &optionsValue);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
}
ok = JS_WrapValue(aCx, &optionsValue);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
ContentChild *cpc = ContentChild::GetSingleton();
uint64_t childID = cpc ? cpc->GetID() : 0;
mProxy->StartActivity(static_cast<nsIDOMDOMRequest*>(this), optionsValue,
aWindow, childID);
return NS_OK;
}
Activity::~Activity()
{
if (mProxy) {
mProxy->Cleanup();
}
}
Activity::Activity(nsPIDOMWindowInner* aWindow)
: DOMRequest(aWindow)
{
}