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/*
* Copyright © 2004 Marco Pesenti Gritti
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
*/
#include "mozilla-config.h"
#include "config.h"
#include <nsStringAPI.h>
#include <gtkmozembed.h>
#include <nsCOMPtr.h>
#include <nsIDOMWindow.h>
#include <nsIEmbeddingSiteWindow.h>
#include <nsIFile.h>
#include <nsIIOService.h>
#include <nsIServiceManager.h>
#include <nsIURI.h>
#include <nsIWebBrowserChrome.h>
#include <nsIWindowWatcher.h>
#include <nsIXPConnect.h>
#include <nsServiceManagerUtils.h>
#include <nsXPCOM.h>
#ifdef HAVE_GECKO_1_9
#include <nsPIDOMWindow.h>
#include <nsDOMJSUtils.h> /* for GetScriptContextFromJSContext */
#include <nsIScriptContext.h>
#include <nsIScriptGlobalObject.h>
#endif
#include "ephy-embed-shell.h"
#include "ephy-embed-single.h"
#include "ephy-file-helpers.h"
#include "EphyUtils.h"
nsresult
EphyUtils::GetIOService (nsIIOService **ioService)
{
nsresult rv;
nsCOMPtr<nsIServiceManager> mgr;
NS_GetServiceManager (getter_AddRefs (mgr));
if (!mgr) return NS_ERROR_FAILURE;
rv = mgr->GetServiceByContractID ("@mozilla.org/network/io-service;1",
NS_GET_IID (nsIIOService),
(void **)ioService);
return rv;
}
nsresult
EphyUtils::NewURI (nsIURI **result,
const nsAString &spec,
const char *charset,
nsIURI *baseURI)
{
nsCString cSpec;
NS_UTF16ToCString (spec, NS_CSTRING_ENCODING_UTF8, cSpec);
return NewURI (result, cSpec, charset, baseURI);
}
nsresult
EphyUtils::NewURI (nsIURI **result,
const nsACString &spec,
const char *charset,
nsIURI *baseURI)
{
nsresult rv;
nsCOMPtr<nsIIOService> ioService;
rv = EphyUtils::GetIOService (getter_AddRefs (ioService));
NS_ENSURE_SUCCESS (rv, rv);
return ioService->NewURI (spec, charset, baseURI, result);
}
nsresult
EphyUtils::NewFileURI (nsIURI **result,
nsIFile *spec)
{
nsresult rv;
nsCOMPtr<nsIIOService> ioService;
rv = EphyUtils::GetIOService (getter_AddRefs (ioService));
NS_ENSURE_SUCCESS (rv, rv);
return ioService->NewFileURI (spec, result);
}
GtkWidget *
EphyUtils::FindEmbed (nsIDOMWindow *aDOMWindow)
{
if (!aDOMWindow) return nsnull;
nsCOMPtr<nsIWindowWatcher> wwatch
(do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
NS_ENSURE_TRUE (wwatch, nsnull);
/* this DOM window may belong to some inner frame, we need
* to get the topmost DOM window to get the embed
*/
nsCOMPtr<nsIDOMWindow> topWindow;
aDOMWindow->GetTop (getter_AddRefs (topWindow));
if (!topWindow) return nsnull;
nsCOMPtr<nsIWebBrowserChrome> windowChrome;
wwatch->GetChromeForWindow (topWindow, getter_AddRefs(windowChrome));
NS_ENSURE_TRUE (windowChrome, nsnull);
nsCOMPtr<nsIEmbeddingSiteWindow> window (do_QueryInterface(windowChrome));
NS_ENSURE_TRUE (window, nsnull);
nsresult rv;
GtkWidget *mozembed;
GtkWidget **cache_ptr = &mozembed;
rv = window->GetSiteWindow ((void **) cache_ptr);
NS_ENSURE_SUCCESS (rv, nsnull);
return mozembed;
}
GtkWidget *
EphyUtils::FindGtkParent (nsIDOMWindow *aDOMWindow)
{
GtkWidget *embed = FindEmbed (aDOMWindow);
if (!embed) return nsnull;
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (embed));
if (!GTK_WIDGET_TOPLEVEL (toplevel)) return nsnull;
return toplevel;
}
char *
EphyUtils::ConvertUTF16toUTF8 (const PRUnichar *aText,
PRInt32 aMaxLength)
{
if (aText == nsnull) return NULL;
/* This depends on the assumption that
* typeof(PRUnichar) == typeof (gunichar2) == uint16,
* which should be pretty safe.
*/
glong n_read = 0, n_written = 0;
char *converted = g_utf16_to_utf8 ((gunichar2*) aText, aMaxLength,
&n_read, &n_written, NULL);
/* FIXME loop from the end while !g_unichar_isspace (char)? */
return converted;
}
/* This isn't completely accurate: if you do window.prompt in one window, then
* call this in another window, it still returns TRUE ! Those are the wonders
* of recursive mainloops :-(
*/
PRBool
EphyJSUtils::IsCalledFromScript ()
{
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc(do_GetService(nsIXPConnect::GetCID(), &rv));
NS_ENSURE_SUCCESS (rv, PR_FALSE);
nsCOMPtr<nsIXPCNativeCallContext> ncc;
rv = xpc->GetCurrentNativeCallContext (getter_AddRefs (ncc));
NS_ENSURE_SUCCESS(rv, PR_FALSE);
return nsnull != ncc;
}
/* NOTE: Only call this when we're SURE that we're called directly from JS! */
nsIDOMWindow *
EphyJSUtils::GetDOMWindowFromCallContext ()
{
/* TODO: We can do this on 1.8 too, but we'd need to use headers which include private string API
* so we'll have to move this to MozillaPrivate
*/
#ifdef HAVE_GECKO_1_9
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc (do_GetService(nsIXPConnect::GetCID(), &rv));
NS_ENSURE_SUCCESS (rv, nsnull);
nsCOMPtr<nsIXPCNativeCallContext> ncc;
rv = xpc->GetCurrentNativeCallContext (getter_AddRefs (ncc));
NS_ENSURE_SUCCESS (rv, nsnull);
JSContext *cx = nsnull;
rv = ncc->GetJSContext(&cx);
NS_ENSURE_TRUE (NS_SUCCEEDED (rv) && cx, nsnull);
nsIScriptContext* scriptContext = GetScriptContextFromJSContext (cx);
if (!scriptContext) return nsnull;
nsIScriptGlobalObject *globalObject = scriptContext->GetGlobalObject();
if (!globalObject) return nsnull;
nsCOMPtr<nsPIDOMWindow> piWindow (do_QueryInterface (globalObject));
if (!piWindow) return nsnull;
return piWindow->GetOuterWindow ();
#else
return nsnull;
#endif
}
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