gecko-dev/toolkit/xre/nsNativeAppSupportUnix.cpp

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9.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "nsNativeAppSupportBase.h"
#include "nsCOMPtr.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsIObserverService.h"
#include "nsIAppStartup.h"
#include "nsServiceManagerUtils.h"
#include "prlink.h"
#include "nsXREDirProvider.h"
#include "nsReadableUtils.h"
#include "nsIFile.h"
#include "nsDirectoryServiceDefs.h"
#include "nsICommandLineRunner.h"
#include "nsIWindowMediator.h"
#include "nsPIDOMWindow.h"
#include "nsIDocShell.h"
#include "nsIBaseWindow.h"
#include "nsIWidget.h"
#include "nsIWritablePropertyBag2.h"
#include "nsIPrefService.h"
#include "mozilla/Services.h"
#include <stdlib.h>
#include <glib.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#ifdef MOZ_X11
#include <gdk/gdkx.h>
#include <X11/Xatom.h>
#endif
#ifdef MOZ_ENABLE_DBUS
#include <dbus/dbus.h>
#endif
#define MIN_GTK_MAJOR_VERSION 2
#define MIN_GTK_MINOR_VERSION 10
#define UNSUPPORTED_GTK_MSG "We're sorry, this application requires a version of the GTK+ library that is not installed on your computer.\n\n\
You have GTK+ %d.%d.\nThis application requires GTK+ %d.%d or newer.\n\n\
Please upgrade your GTK+ library if you wish to use this application."
typedef struct _GnomeProgram GnomeProgram;
typedef struct _GnomeModuleInfo GnomeModuleInfo;
typedef struct _GnomeClient GnomeClient;
typedef enum {
GNOME_SAVE_GLOBAL,
GNOME_SAVE_LOCAL,
GNOME_SAVE_BOTH
} GnomeSaveStyle;
typedef enum {
GNOME_INTERACT_NONE,
GNOME_INTERACT_ERRORS,
GNOME_INTERACT_ANY
} GnomeInteractStyle;
typedef enum {
GNOME_DIALOG_ERROR,
GNOME_DIALOG_NORMAL
} GnomeDialogType;
#if defined(MOZ_X11) && (MOZ_WIDGET_GTK == 2)
typedef GnomeProgram * (*_gnome_program_init_fn)(const char *, const char *,
const GnomeModuleInfo *, int,
char **, const char *, ...);
typedef GnomeProgram * (*_gnome_program_get_fn)(void);
typedef const GnomeModuleInfo * (*_libgnomeui_module_info_get_fn)();
typedef GnomeClient * (*_gnome_master_client_fn)(void);
typedef void (*_gnome_client_set_restart_command_fn)(GnomeClient*, gint, gchar*[]);
static _gnome_client_set_restart_command_fn gnome_client_set_restart_command;
#endif
gboolean save_yourself_cb(GnomeClient *client, gint phase,
GnomeSaveStyle style, gboolean shutdown,
GnomeInteractStyle interact, gboolean fast,
gpointer user_data)
{
nsCOMPtr<nsIObserverService> obsServ =
mozilla::services::GetObserverService();
nsCOMPtr<nsISupportsPRBool> didSaveSession =
do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID);
if (!obsServ || !didSaveSession)
return TRUE; // OOM
// Notify observers to save the session state
didSaveSession->SetData(false);
obsServ->NotifyObservers(didSaveSession, "session-save", nullptr);
bool status;
didSaveSession->GetData(&status);
// If there was no session saved and the save_yourself request is
// caused by upcoming shutdown we like to prepare for it
if (!status && shutdown) {
nsCOMPtr<nsISupportsPRBool> cancelQuit =
do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID);
cancelQuit->SetData(false);
obsServ->NotifyObservers(cancelQuit, "quit-application-requested", nullptr);
bool abortQuit;
cancelQuit->GetData(&abortQuit);
}
return TRUE;
}
void die_cb(GnomeClient *client, gpointer user_data)
{
nsCOMPtr<nsIAppStartup> appService =
do_GetService("@mozilla.org/toolkit/app-startup;1");
if (appService)
appService->Quit(nsIAppStartup::eForceQuit);
}
class nsNativeAppSupportUnix : public nsNativeAppSupportBase
{
public:
NS_IMETHOD Start(bool* aRetVal);
NS_IMETHOD Stop(bool *aResult);
NS_IMETHOD Enable();
private:
};
NS_IMETHODIMP
nsNativeAppSupportUnix::Start(bool *aRetVal)
{
NS_ASSERTION(gAppData, "gAppData must not be null.");
// The dbus library is used by both nsWifiScannerDBus and BluetoothDBusService,
// from diffrent threads. This could lead to race conditions if the dbus is not
// initialized before making any other library calls.
#ifdef MOZ_ENABLE_DBUS
dbus_threads_init_default();
#endif
#if (MOZ_WIDGET_GTK == 2)
if (gtk_major_version < MIN_GTK_MAJOR_VERSION ||
(gtk_major_version == MIN_GTK_MAJOR_VERSION && gtk_minor_version < MIN_GTK_MINOR_VERSION)) {
GtkWidget* versionErrDialog = gtk_message_dialog_new(nullptr,
GtkDialogFlags(GTK_DIALOG_MODAL |
GTK_DIALOG_DESTROY_WITH_PARENT),
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
UNSUPPORTED_GTK_MSG,
gtk_major_version,
gtk_minor_version,
MIN_GTK_MAJOR_VERSION,
MIN_GTK_MINOR_VERSION);
gtk_dialog_run(GTK_DIALOG(versionErrDialog));
gtk_widget_destroy(versionErrDialog);
exit(0);
}
#endif
*aRetVal = true;
#if defined(MOZ_X11) && (MOZ_WIDGET_GTK == 2)
PRLibrary *gnomeuiLib = PR_LoadLibrary("libgnomeui-2.so.0");
if (!gnomeuiLib)
return NS_OK;
PRLibrary *gnomeLib = PR_LoadLibrary("libgnome-2.so.0");
if (!gnomeLib) {
PR_UnloadLibrary(gnomeuiLib);
return NS_OK;
}
_gnome_program_init_fn gnome_program_init =
(_gnome_program_init_fn)PR_FindFunctionSymbol(gnomeLib, "gnome_program_init");
_gnome_program_get_fn gnome_program_get =
(_gnome_program_get_fn)PR_FindFunctionSymbol(gnomeLib, "gnome_program_get");
_libgnomeui_module_info_get_fn libgnomeui_module_info_get = (_libgnomeui_module_info_get_fn)PR_FindFunctionSymbol(gnomeuiLib, "libgnomeui_module_info_get");
if (!gnome_program_init || !gnome_program_get || !libgnomeui_module_info_get) {
PR_UnloadLibrary(gnomeuiLib);
PR_UnloadLibrary(gnomeLib);
return NS_OK;
}
#endif /* MOZ_X11 && (MOZ_WIDGET_GTK == 2) */
#ifdef ACCESSIBILITY
// We will load gail, atk-bridge by ourself later
// We can't run atk-bridge init here, because gail get the control
// Set GNOME_ACCESSIBILITY to 0 can avoid this
static const char *accEnv = "GNOME_ACCESSIBILITY";
const char *accOldValue = getenv(accEnv);
setenv(accEnv, "0", 1);
#endif
#if defined(MOZ_X11) && (MOZ_WIDGET_GTK == 2)
if (!gnome_program_get()) {
gnome_program_init("Gecko", "1.0", libgnomeui_module_info_get(),
gArgc, gArgv, nullptr);
}
#endif /* MOZ_X11 && (MOZ_WIDGET_GTK == 2) */
#ifdef ACCESSIBILITY
if (accOldValue) {
setenv(accEnv, accOldValue, 1);
} else {
unsetenv(accEnv);
}
#endif
// Careful! These libraries cannot be unloaded after this point because
// gnome_program_init causes atexit handlers to be registered. Strange
// crashes will occur if these libraries are unloaded.
// TODO GTK3 - see Bug 694570 - Stop using libgnome and libgnomeui on Linux
#if defined(MOZ_X11) && (MOZ_WIDGET_GTK == 2)
gnome_client_set_restart_command = (_gnome_client_set_restart_command_fn)
PR_FindFunctionSymbol(gnomeuiLib, "gnome_client_set_restart_command");
_gnome_master_client_fn gnome_master_client = (_gnome_master_client_fn)
PR_FindFunctionSymbol(gnomeuiLib, "gnome_master_client");
GnomeClient *client = gnome_master_client();
g_signal_connect(client, "save-yourself", G_CALLBACK(save_yourself_cb), nullptr);
g_signal_connect(client, "die", G_CALLBACK(die_cb), nullptr);
// Set the correct/requested restart command in any case.
// Is there a request to suppress default binary launcher?
nsAutoCString path;
char* argv1 = getenv("MOZ_APP_LAUNCHER");
if(!argv1) {
// Tell the desktop the command for restarting us so that we can be part of XSMP session restore
NS_ASSERTION(gDirServiceProvider, "gDirServiceProvider is NULL! This shouldn't happen!");
nsCOMPtr<nsIFile> executablePath;
nsresult rv;
bool dummy;
rv = gDirServiceProvider->GetFile(XRE_EXECUTABLE_FILE, &dummy, getter_AddRefs(executablePath));
if (NS_SUCCEEDED(rv)) {
// Strip off the -bin suffix to get the shell script we should run; this is what Breakpad does
nsAutoCString leafName;
rv = executablePath->GetNativeLeafName(leafName);
if (NS_SUCCEEDED(rv) && StringEndsWith(leafName, NS_LITERAL_CSTRING("-bin"))) {
leafName.SetLength(leafName.Length() - strlen("-bin"));
executablePath->SetNativeLeafName(leafName);
}
executablePath->GetNativePath(path);
argv1 = (char*)(path.get());
}
}
if (argv1) {
gnome_client_set_restart_command(client, 1, &argv1);
}
#endif /* MOZ_X11 && (MOZ_WIDGET_GTK == 2) */
return NS_OK;
}
NS_IMETHODIMP
nsNativeAppSupportUnix::Stop(bool *aResult)
{
NS_ENSURE_ARG(aResult);
*aResult = true;
return NS_OK;
}
NS_IMETHODIMP
nsNativeAppSupportUnix::Enable()
{
return NS_OK;
}
nsresult
NS_CreateNativeAppSupport(nsINativeAppSupport **aResult)
{
nsNativeAppSupportBase* native = new nsNativeAppSupportUnix();
if (!native)
return NS_ERROR_OUT_OF_MEMORY;
*aResult = native;
NS_ADDREF(*aResult);
return NS_OK;
}