gecko-dev/dom/permission/Permissions.cpp

126 строки
3.3 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 "mozilla/dom/Permissions.h"
#include "mozilla/dom/PermissionsBinding.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/Services.h"
#include "nsIPermissionManager.h"
#include "PermissionUtils.h"
namespace mozilla {
namespace dom {
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Permissions)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(Permissions)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Permissions)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Permissions, mWindow)
Permissions::Permissions(nsPIDOMWindow* aWindow)
: mWindow(aWindow)
{
}
Permissions::~Permissions()
{
}
JSObject*
Permissions::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return PermissionsBinding::Wrap(aCx, this, aGivenProto);
}
namespace {
already_AddRefed<PermissionStatus>
CreatePushPermissionStatus(JSContext* aCx,
JS::Handle<JSObject*> aPermission,
nsPIDOMWindow* aWindow,
ErrorResult& aRv)
{
PushPermissionDescriptor permission;
JS::Rooted<JS::Value> value(aCx, JS::ObjectOrNullValue(aPermission));
if (NS_WARN_IF(!permission.Init(aCx, value))) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
if (permission.mUserVisible) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
return PermissionStatus::Create(aWindow, permission.mName, aRv);
}
already_AddRefed<PermissionStatus>
CreatePermissionStatus(JSContext* aCx,
JS::Handle<JSObject*> aPermission,
nsPIDOMWindow* aWindow,
ErrorResult& aRv)
{
PermissionDescriptor permission;
JS::Rooted<JS::Value> value(aCx, JS::ObjectOrNullValue(aPermission));
if (NS_WARN_IF(!permission.Init(aCx, value))) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
switch (permission.mName) {
case PermissionName::Geolocation:
case PermissionName::Notifications:
return PermissionStatus::Create(aWindow, permission.mName, aRv);
case PermissionName::Push:
return CreatePushPermissionStatus(aCx, aPermission, aWindow, aRv);
case PermissionName::Midi:
default:
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
return nullptr;
}
}
} // namespace
already_AddRefed<Promise>
Permissions::Query(JSContext* aCx,
JS::Handle<JSObject*> aPermission,
ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(mWindow);
if (!global) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsRefPtr<Promise> promise = Promise::Create(global, aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nsRefPtr<PermissionStatus> status =
CreatePermissionStatus(aCx, aPermission, mWindow, aRv);
if (NS_WARN_IF(aRv.Failed())) {
MOZ_ASSERT(!status);
promise->MaybeReject(aRv);
} else {
MOZ_ASSERT(status);
promise->MaybeResolve(status);
}
return promise.forget();
}
} // namespace dom
} // namespace mozilla