gecko/toolkit/components/alerts/nsXULAlerts.cpp

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/* -*- 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 "nsXULAlerts.h"
#include "nsAutoPtr.h"
#include "mozilla/LookAndFeel.h"
#include "nsIServiceManager.h"
#include "nsISupportsArray.h"
#include "nsISupportsPrimitives.h"
#include "nsPIDOMWindow.h"
#include "nsIWindowWatcher.h"
#define ALERT_CHROME_URL "chrome://global/content/alerts/alert.xul"
NS_IMPL_ISUPPORTS1(nsXULAlertObserver, nsIObserver)
NS_IMETHODIMP
nsXULAlertObserver::Observe(nsISupports* aSubject, const char* aTopic,
const PRUnichar* aData)
{
if (!strcmp("alertfinished", aTopic)) {
nsIDOMWindow* currentAlert = mXULAlerts->mNamedWindows.GetWeak(mAlertName);
// The window in mNamedWindows might be a replacement, thus it should only
// be removed if it is the same window that is associated with this listener.
if (currentAlert == mAlertWindow) {
mXULAlerts->mNamedWindows.Remove(mAlertName);
}
}
nsresult rv = NS_OK;
if (mObserver) {
rv = mObserver->Observe(aSubject, aTopic, aData);
}
return rv;
}
nsresult
nsXULAlerts::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)
{
nsCOMPtr<nsIWindowWatcher> wwatch(do_GetService(NS_WINDOWWATCHER_CONTRACTID));
nsCOMPtr<nsISupportsArray> argsArray;
nsresult rv = NS_NewISupportsArray(getter_AddRefs(argsArray));
NS_ENSURE_SUCCESS(rv, rv);
// create scriptable versions of our strings that we can store in our nsISupportsArray....
nsCOMPtr<nsISupportsString> scriptableImageUrl (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
NS_ENSURE_TRUE(scriptableImageUrl, NS_ERROR_FAILURE);
scriptableImageUrl->SetData(aImageUrl);
rv = argsArray->AppendElement(scriptableImageUrl);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsString> scriptableAlertTitle (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
NS_ENSURE_TRUE(scriptableAlertTitle, NS_ERROR_FAILURE);
scriptableAlertTitle->SetData(aAlertTitle);
rv = argsArray->AppendElement(scriptableAlertTitle);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsString> scriptableAlertText (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
NS_ENSURE_TRUE(scriptableAlertText, NS_ERROR_FAILURE);
scriptableAlertText->SetData(aAlertText);
rv = argsArray->AppendElement(scriptableAlertText);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsPRBool> scriptableIsClickable (do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID));
NS_ENSURE_TRUE(scriptableIsClickable, NS_ERROR_FAILURE);
scriptableIsClickable->SetData(aAlertTextClickable);
rv = argsArray->AppendElement(scriptableIsClickable);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsString> scriptableAlertCookie (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
NS_ENSURE_TRUE(scriptableAlertCookie, NS_ERROR_FAILURE);
scriptableAlertCookie->SetData(aAlertCookie);
rv = argsArray->AppendElement(scriptableAlertCookie);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsPRInt32> scriptableOrigin (do_CreateInstance(NS_SUPPORTS_PRINT32_CONTRACTID));
NS_ENSURE_TRUE(scriptableOrigin, NS_ERROR_FAILURE);
int32_t origin =
LookAndFeel::GetInt(LookAndFeel::eIntID_AlertNotificationOrigin);
scriptableOrigin->SetData(origin);
rv = argsArray->AppendElement(scriptableOrigin);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsString> scriptableBidi (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
NS_ENSURE_TRUE(scriptableBidi, NS_ERROR_FAILURE);
scriptableBidi->SetData(aBidi);
rv = argsArray->AppendElement(scriptableBidi);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsISupportsString> scriptableLang (do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
NS_ENSURE_TRUE(scriptableLang, NS_ERROR_FAILURE);
scriptableLang->SetData(aLang);
rv = argsArray->AppendElement(scriptableLang);
NS_ENSURE_SUCCESS(rv, rv);
// Alerts with the same name should replace the old alert in the same position.
// Provide the new alert window with a pointer to the replaced window so that
// it may take the same position.
nsCOMPtr<nsISupportsInterfacePointer> replacedWindow = do_CreateInstance(NS_SUPPORTS_INTERFACE_POINTER_CONTRACTID, &rv);
NS_ENSURE_TRUE(replacedWindow, NS_ERROR_FAILURE);
nsIDOMWindow* previousAlert = mNamedWindows.GetWeak(aAlertName);
replacedWindow->SetData(previousAlert);
replacedWindow->SetDataIID(&NS_GET_IID(nsIDOMWindow));
rv = argsArray->AppendElement(replacedWindow);
NS_ENSURE_SUCCESS(rv, rv);
// Add an observer (that wraps aAlertListener) to remove the window from
// mNamedWindows when it is closed.
nsCOMPtr<nsISupportsInterfacePointer> ifptr = do_CreateInstance(NS_SUPPORTS_INTERFACE_POINTER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<nsXULAlertObserver> alertObserver = new nsXULAlertObserver(this, aAlertName, aAlertListener);
nsCOMPtr<nsISupports> iSupports(do_QueryInterface(alertObserver));
ifptr->SetData(iSupports);
ifptr->SetDataIID(&NS_GET_IID(nsIObserver));
rv = argsArray->AppendElement(ifptr);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMWindow> newWindow;
rv = wwatch->OpenWindow(0, ALERT_CHROME_URL, "_blank",
"chrome,dialog=yes,titlebar=no,popup=yes", argsArray,
getter_AddRefs(newWindow));
NS_ENSURE_SUCCESS(rv, rv);
mNamedWindows.Put(aAlertName, newWindow);
alertObserver->SetAlertWindow(newWindow);
return NS_OK;
}
nsresult
nsXULAlerts::CloseAlert(const nsAString& aAlertName)
{
nsIDOMWindow* alert = mNamedWindows.GetWeak(aAlertName);
nsCOMPtr<nsPIDOMWindow> domWindow = do_QueryInterface(alert);
if (domWindow) {
domWindow->DispatchCustomEvent("XULAlertClose");
}
return NS_OK;
}