gecko/dom/activities/src/Activity.cpp

94 lines
2.6 KiB
C++

/* 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/MozActivityBinding.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_1(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*> aScope)
{
return MozActivityBinding::Wrap(aCx, aScope, this);
}
nsresult
Activity::Initialize(nsISupports* aOwner,
nsIDOMMozActivityOptions* aOptions)
{
MOZ_ASSERT(aOptions);
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aOwner);
NS_ENSURE_TRUE(window, NS_ERROR_UNEXPECTED);
Init(window);
nsCOMPtr<nsIDocument> document = window->GetExtantDoc();
bool isActive;
window->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 start activity from non 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);
mProxy->StartActivity(static_cast<nsIDOMDOMRequest*>(this), aOptions, window);
return NS_OK;
}
Activity::~Activity()
{
if (mProxy) {
mProxy->Cleanup();
}
}
Activity::Activity()
: DOMRequest()
{
// Unfortunately we must explicitly declare the default constructor in order
// to prevent an implicitly deleted constructor in DOMRequest compile error
// in GCC 4.6.
MOZ_ASSERT(IsDOMBinding());
}