Mypal/toolkit/components/alerts/nsAlertsService.cpp

317 lines
9.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode:nil; c-basic-offset: 2 -*- */
/* 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/ContentChild.h"
#include "mozilla/dom/PermissionMessageUtils.h"
#include "mozilla/Preferences.h"
#include "nsXULAppAPI.h"
#include "nsAlertsService.h"
#include "nsXPCOM.h"
#include "nsIServiceManager.h"
#include "nsIDOMWindow.h"
#include "nsPromiseFlatString.h"
#include "nsToolkitCompsCID.h"
#ifdef MOZ_PLACES
#include "mozIAsyncFavicons.h"
#include "nsIFaviconService.h"
#endif // MOZ_PLACES
using namespace mozilla;
using mozilla::dom::ContentChild;
namespace {
#ifdef MOZ_PLACES
class IconCallback final : public nsIFaviconDataCallback
{
public:
NS_DECL_ISUPPORTS
IconCallback(nsIAlertsService* aBackend,
nsIAlertNotification* aAlert,
nsIObserver* aAlertListener)
: mBackend(aBackend)
, mAlert(aAlert)
, mAlertListener(aAlertListener)
{}
NS_IMETHOD
OnComplete(nsIURI *aIconURI, uint32_t aIconSize, const uint8_t *aIconData,
const nsACString &aMimeType) override
{
nsresult rv = NS_ERROR_FAILURE;
if (aIconSize > 0) {
nsCOMPtr<nsIAlertsIconData> alertsIconData(do_QueryInterface(mBackend));
if (alertsIconData) {
rv = alertsIconData->ShowAlertWithIconData(mAlert, mAlertListener,
aIconSize, aIconData);
}
} else if (aIconURI) {
nsCOMPtr<nsIAlertsIconURI> alertsIconURI(do_QueryInterface(mBackend));
if (alertsIconURI) {
rv = alertsIconURI->ShowAlertWithIconURI(mAlert, mAlertListener,
aIconURI);
}
}
if (NS_FAILED(rv)) {
rv = mBackend->ShowAlert(mAlert, mAlertListener);
}
return rv;
}
private:
virtual ~IconCallback() {}
nsCOMPtr<nsIAlertsService> mBackend;
nsCOMPtr<nsIAlertNotification> mAlert;
nsCOMPtr<nsIObserver> mAlertListener;
};
NS_IMPL_ISUPPORTS(IconCallback, nsIFaviconDataCallback)
#endif // MOZ_PLACES
nsresult
ShowWithIconBackend(nsIAlertsService* aBackend, nsIAlertNotification* aAlert,
nsIObserver* aAlertListener)
{
#ifdef MOZ_PLACES
nsCOMPtr<nsIURI> uri;
nsresult rv = aAlert->GetURI(getter_AddRefs(uri));
if (NS_FAILED(rv) || !uri) {
return NS_ERROR_FAILURE;
}
// Ensure the backend supports favicons.
nsCOMPtr<nsIAlertsIconData> alertsIconData(do_QueryInterface(aBackend));
nsCOMPtr<nsIAlertsIconURI> alertsIconURI;
if (!alertsIconData) {
alertsIconURI = do_QueryInterface(aBackend);
}
if (!alertsIconData && !alertsIconURI) {
return NS_ERROR_NOT_IMPLEMENTED;
}
nsCOMPtr<mozIAsyncFavicons> favicons(do_GetService(
"@mozilla.org/browser/favicon-service;1"));
NS_ENSURE_TRUE(favicons, NS_ERROR_FAILURE);
nsCOMPtr<nsIFaviconDataCallback> callback =
new IconCallback(aBackend, aAlert, aAlertListener);
if (alertsIconData) {
return favicons->GetFaviconDataForPage(uri, callback);
}
return favicons->GetFaviconURLForPage(uri, callback);
#else
return NS_ERROR_NOT_IMPLEMENTED;
#endif // !MOZ_PLACES
}
nsresult
ShowWithBackend(nsIAlertsService* aBackend, nsIAlertNotification* aAlert,
nsIObserver* aAlertListener, const nsAString& aPersistentData)
{
if (!aPersistentData.IsEmpty()) {
return aBackend->ShowPersistentNotification(
aPersistentData, aAlert, aAlertListener);
}
if (Preferences::GetBool("alerts.showFavicons")) {
nsresult rv = ShowWithIconBackend(aBackend, aAlert, aAlertListener);
if (NS_SUCCEEDED(rv)) {
return rv;
}
}
// If favicons are disabled, or the backend doesn't support them, show the
// alert without one.
return aBackend->ShowAlert(aAlert, aAlertListener);
}
} // anonymous namespace
NS_IMPL_ISUPPORTS(nsAlertsService, nsIAlertsService, nsIAlertsDoNotDisturb)
nsAlertsService::nsAlertsService() :
mBackend(nullptr)
{
mBackend = do_GetService(NS_SYSTEMALERTSERVICE_CONTRACTID);
}
nsAlertsService::~nsAlertsService()
{}
bool nsAlertsService::ShouldShowAlert()
{
bool result = true;
#ifdef XP_WIN
HMODULE shellDLL = ::LoadLibraryW(L"shell32.dll");
if (!shellDLL)
return result;
SHQueryUserNotificationStatePtr pSHQueryUserNotificationState =
(SHQueryUserNotificationStatePtr) ::GetProcAddress(shellDLL, "SHQueryUserNotificationState");
if (pSHQueryUserNotificationState) {
MOZ_QUERY_USER_NOTIFICATION_STATE qstate;
if (SUCCEEDED(pSHQueryUserNotificationState(&qstate))) {
if (qstate != QUNS_ACCEPTS_NOTIFICATIONS) {
result = false;
}
}
}
::FreeLibrary(shellDLL);
#endif
return result;
}
NS_IMETHODIMP nsAlertsService::ShowAlertNotification(const nsAString & aImageUrl, const nsAString & aAlertTitle,
const nsAString & aAlertText, bool aAlertTextClickable,
const nsAString & aAlertCookie,
nsIObserver * aAlertListener,
const nsAString & aAlertName,
const nsAString & aBidi,
const nsAString & aLang,
const nsAString & aData,
nsIPrincipal * aPrincipal,
bool aInPrivateBrowsing,
bool aRequireInteraction)
{
nsCOMPtr<nsIAlertNotification> alert =
do_CreateInstance(ALERT_NOTIFICATION_CONTRACTID);
NS_ENSURE_TRUE(alert, NS_ERROR_FAILURE);
nsresult rv = alert->Init(aAlertName, aImageUrl, aAlertTitle,
aAlertText, aAlertTextClickable,
aAlertCookie, aBidi, aLang, aData,
aPrincipal, aInPrivateBrowsing,
aRequireInteraction);
NS_ENSURE_SUCCESS(rv, rv);
return ShowAlert(alert, aAlertListener);
}
NS_IMETHODIMP nsAlertsService::ShowAlert(nsIAlertNotification * aAlert,
nsIObserver * aAlertListener)
{
return ShowPersistentNotification(EmptyString(), aAlert, aAlertListener);
}
NS_IMETHODIMP nsAlertsService::ShowPersistentNotification(const nsAString & aPersistentData,
nsIAlertNotification * aAlert,
nsIObserver * aAlertListener)
{
NS_ENSURE_ARG(aAlert);
nsAutoString cookie;
nsresult rv = aAlert->GetCookie(cookie);
NS_ENSURE_SUCCESS(rv, rv);
if (XRE_IsContentProcess()) {
ContentChild* cpc = ContentChild::GetSingleton();
if (aAlertListener)
cpc->AddRemoteAlertObserver(cookie, aAlertListener);
cpc->SendShowAlert(aAlert);
return NS_OK;
}
// Check if there is an optional service that handles system-level notifications
if (mBackend) {
rv = ShowWithBackend(mBackend, aAlert, aAlertListener, aPersistentData);
if (NS_SUCCEEDED(rv)) {
return rv;
}
// If the system backend failed to show the alert, clear the backend and
// retry with XUL notifications. Future alerts will always use XUL.
mBackend = nullptr;
}
if (!ShouldShowAlert()) {
// Do not display the alert. Instead call alertfinished and get out.
if (aAlertListener)
aAlertListener->Observe(nullptr, "alertfinished", cookie.get());
return NS_OK;
}
// Use XUL notifications as a fallback if above methods have failed.
nsCOMPtr<nsIAlertsService> xulBackend(nsXULAlerts::GetInstance());
NS_ENSURE_TRUE(xulBackend, NS_ERROR_FAILURE);
return ShowWithBackend(xulBackend, aAlert, aAlertListener, aPersistentData);
}
NS_IMETHODIMP nsAlertsService::CloseAlert(const nsAString& aAlertName,
nsIPrincipal* aPrincipal)
{
if (XRE_IsContentProcess()) {
ContentChild* cpc = ContentChild::GetSingleton();
cpc->SendCloseAlert(nsAutoString(aAlertName), IPC::Principal(aPrincipal));
return NS_OK;
}
nsresult rv;
// Try the system notification service.
if (mBackend) {
rv = mBackend->CloseAlert(aAlertName, aPrincipal);
if (NS_WARN_IF(NS_FAILED(rv))) {
// If the system backend failed to close the alert, fall back to XUL for
// future alerts.
mBackend = nullptr;
}
} else {
nsCOMPtr<nsIAlertsService> xulBackend(nsXULAlerts::GetInstance());
NS_ENSURE_TRUE(xulBackend, NS_ERROR_FAILURE);
rv = xulBackend->CloseAlert(aAlertName, aPrincipal);
}
return rv;
}
// nsIAlertsDoNotDisturb
NS_IMETHODIMP nsAlertsService::GetManualDoNotDisturb(bool* aRetVal)
{
#ifdef MOZ_WIDGET_ANDROID
return NS_ERROR_NOT_IMPLEMENTED;
#else
nsCOMPtr<nsIAlertsDoNotDisturb> alertsDND(GetDNDBackend());
NS_ENSURE_TRUE(alertsDND, NS_ERROR_NOT_IMPLEMENTED);
return alertsDND->GetManualDoNotDisturb(aRetVal);
#endif
}
NS_IMETHODIMP nsAlertsService::SetManualDoNotDisturb(bool aDoNotDisturb)
{
#ifdef MOZ_WIDGET_ANDROID
return NS_ERROR_NOT_IMPLEMENTED;
#else
nsCOMPtr<nsIAlertsDoNotDisturb> alertsDND(GetDNDBackend());
NS_ENSURE_TRUE(alertsDND, NS_ERROR_NOT_IMPLEMENTED);
nsresult rv = alertsDND->SetManualDoNotDisturb(aDoNotDisturb);
return rv;
#endif
}
already_AddRefed<nsIAlertsDoNotDisturb>
nsAlertsService::GetDNDBackend()
{
// Try the system notification service.
nsCOMPtr<nsIAlertsService> backend = mBackend;
if (!backend) {
backend = nsXULAlerts::GetInstance();
}
nsCOMPtr<nsIAlertsDoNotDisturb> alertsDND(do_QueryInterface(backend));
return alertsDND.forget();
}