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gecko-dev/toolkit/xre/nsNativeAppSupportUnix.cpp

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C++
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/* -*- 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
#if (MOZ_PLATFORM_MAEMO == 5)
struct DBusMessage; /* libosso.h references internals of dbus */
#include <dbus/dbus.h>
#include <dbus/dbus-protocol.h>
#include <libosso.h>
// These come from <mce/dbus-names.h> (maemo sdk 5+)
#define MCE_SERVICE "com.nokia.mce"
#define MCE_REQUEST_IF "com.nokia.mce.request"
#define MCE_REQUEST_PATH "/com/nokia/mce/request"
#define MCE_SIGNAL_IF "com.nokia.mce.signal"
#define MCE_DEVICE_ORIENTATION_SIG "sig_device_orientation_ind"
#define MCE_MATCH_RULE "type='signal',interface='" MCE_SIGNAL_IF "',member='" MCE_DEVICE_ORIENTATION_SIG "'"
#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;
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;
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:
#if (MOZ_PLATFORM_MAEMO == 5)
osso_context_t *m_osso_context;
/* A note about why we need to have m_hw_state:
the osso hardware callback does not tell us what changed, just
that something has changed. We need to keep track of state so
that we can determine what has changed.
*/
osso_hw_state_t m_hw_state;
#endif
};
#if (MOZ_PLATFORM_MAEMO == 5)
static nsresult
GetMostRecentWindow(const PRUnichar* aType, nsIDOMWindow** aWindow)
{
nsCOMPtr<nsIWindowMediator> wm = do_GetService("@mozilla.org/appshell/window-mediator;1");
if (wm)
return wm->GetMostRecentWindow(aType, aWindow);
return NS_ERROR_FAILURE;
}
static GtkWidget*
WidgetForDOMWindow(nsISupports *aWindow)
{
nsCOMPtr<nsPIDOMWindow> domWindow(do_QueryInterface(aWindow));
if (!domWindow)
return NULL;
nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(domWindow->GetDocShell());
if (!baseWindow)
return NULL;
nsCOMPtr<nsIWidget> widget;
baseWindow->GetMainWidget(getter_AddRefs(widget));
if (!widget)
return NULL;
return (GtkWidget*)(widget->GetNativeData(NS_NATIVE_SHELLWIDGET));
}
static void
OssoSetWindowOrientation(bool aPortrait)
{
// If we locked the screen, ignore any orientation changes
bool lockScreen = false;
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs)
prefs->GetBoolPref("toolkit.screen.lock", &lockScreen);
if (lockScreen)
return;
// Tell Hildon desktop to force our window to be either portrait or landscape,
// depending on the current rotation
// NOTE: We only update the most recent top-level window so this is only
// suitable for apps with only one window.
nsCOMPtr<nsIDOMWindow> window;
GetMostRecentWindow(EmptyString().get(), getter_AddRefs(window));
GtkWidget* widget = WidgetForDOMWindow(window);
if (widget && widget->window) {
GdkWindow *gdk = widget->window;
GdkAtom request = gdk_atom_intern("_HILDON_PORTRAIT_MODE_REQUEST", FALSE);
if (aPortrait) {
gulong portrait_set = 1;
gdk_property_change(gdk, request, gdk_x11_xatom_to_atom(XA_CARDINAL),
32, GDK_PROP_MODE_REPLACE, (const guchar *) &portrait_set, 1);
}
else {
gdk_property_delete(gdk, request);
}
}
// Update the system info property
nsCOMPtr<nsIWritablePropertyBag2> info = do_GetService("@mozilla.org/system-info;1");
if (info) {
info->SetPropertyAsAString(NS_LITERAL_STRING("screen-orientation"),
aPortrait ? NS_LITERAL_STRING("portrait") : NS_LITERAL_STRING("landscape"));
}
}
static bool OssoIsScreenOn(osso_context_t* ctx)
{
osso_return_t rv;
osso_rpc_t ret;
bool result = false;
rv = osso_rpc_run_system(ctx, MCE_SERVICE, MCE_REQUEST_PATH, MCE_REQUEST_IF,
"get_display_status", &ret, DBUS_TYPE_INVALID);
if (rv == OSSO_OK) {
if (strcmp(ret.value.s, "on") == 0)
result = true;
osso_rpc_free_val(&ret);
}
return result;
}
static void OssoRequestAccelerometer(osso_context_t *ctx, bool aEnabled)
{
osso_return_t rv;
osso_rpc_t ret;
rv = osso_rpc_run_system(ctx,
MCE_SERVICE,
MCE_REQUEST_PATH, MCE_REQUEST_IF,
aEnabled ? "req_accelerometer_enable" : "req_accelerometer_disable",
aEnabled ? &ret : NULL,
DBUS_TYPE_INVALID);
// Orientation might changed while the accelerometer was off, so let's update
// the window's orientation
if (rv == OSSO_OK && aEnabled) {
OssoSetWindowOrientation(strcmp(ret.value.s, "portrait") == 0);
osso_rpc_free_val(&ret);
}
}
static void OssoDisplayCallback(osso_display_state_t state, gpointer data)
{
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (!os)
return;
osso_context_t* context = (osso_context_t*) data;
if (state == OSSO_DISPLAY_ON) {
os->NotifyObservers(nullptr, "system-display-on", nullptr);
OssoRequestAccelerometer(context, true);
} else {
os->NotifyObservers(nullptr, "system-display-dimmed-or-off", nullptr);
OssoRequestAccelerometer(context, false);
}
}
static void OssoHardwareCallback(osso_hw_state_t *state, gpointer data)
{
NS_ASSERTION(state, "osso_hw_state_t must not be null.");
NS_ASSERTION(data, "data must not be null.");
osso_hw_state_t* ourState = (osso_hw_state_t*) data;
if (state->shutdown_ind) {
nsCOMPtr<nsIAppStartup> appService = do_GetService("@mozilla.org/toolkit/app-startup;1");
if (appService)
appService->Quit(nsIAppStartup::eForceQuit);
return;
}
if (state->memory_low_ind && !ourState->memory_low_ind) {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os)
os->NotifyObservers(nullptr, "memory-pressure", NS_LITERAL_STRING("low-memory").get());
}
if (state->system_inactivity_ind != ourState->system_inactivity_ind) {
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (!os)
return;
if (state->system_inactivity_ind)
os->NotifyObservers(nullptr, "system-idle", nullptr);
else
os->NotifyObservers(nullptr, "system-active", nullptr);
}
memcpy(ourState, state, sizeof(osso_hw_state_t));
}
static gint
OssoDbusCallback(const gchar *interface, const gchar *method,
GArray *arguments, gpointer data, osso_rpc_t *retval)
{
retval->type = DBUS_TYPE_INVALID;
// The "top_application" method just wants us to focus the top-most window.
if (!strcmp("top_application", method)) {
nsCOMPtr<nsIDOMWindow> window;
GetMostRecentWindow(NS_LITERAL_STRING("").get(), getter_AddRefs(window));
if (window)
window->Focus();
return OSSO_OK;
}
if (!strcmp("quit", method)) {
nsCOMPtr<nsIAppStartup> appService = do_GetService("@mozilla.org/toolkit/app-startup;1");
if (appService)
appService->Quit(nsIAppStartup::eForceQuit);
return OSSO_OK;
}
// Other methods can have arguments, which we convert and send to commandline
// handlers.
nsCOMPtr<nsICommandLineRunner> cmdLine
(do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
nsCOMPtr<nsIFile> workingDir;
NS_GetSpecialDirectory(NS_XPCOM_CURRENT_PROCESS_DIR,
getter_AddRefs(workingDir));
char** argv = 0;
int argc = 0;
// Not all DBus methods pass arguments
if (arguments && arguments->len > 0) {
// Create argument list with a dummy argv[0]
argc = arguments->len + 1;
argv = (char**)calloc(1, argc * sizeof(*argv));
// Start at 1 to skip the dummy argv[0]
for (int i = 1; i < argc; i++) {
osso_rpc_t* entry = (osso_rpc_t*)&g_array_index(arguments, osso_rpc_t, i - 1);
if (entry->type != DBUS_TYPE_STRING)
continue;
argv[i] = strdup(entry->value.s);
}
}
cmdLine->Init(argc, argv, workingDir, nsICommandLine::STATE_REMOTE_AUTO);
// Cleanup argument list
while (argc) {
free(argv[--argc]);
}
free(argv);
cmdLine->Run();
return OSSO_OK;
}
static DBusHandlerResult
OssoModeControlCallback(DBusConnection *con, DBusMessage *msg, gpointer data)
{
if (dbus_message_is_signal(msg, MCE_SIGNAL_IF, MCE_DEVICE_ORIENTATION_SIG)) {
DBusMessageIter iter;
if (dbus_message_iter_init(msg, &iter)) {
const gchar *mode = NULL;
dbus_message_iter_get_basic(&iter, &mode);
OssoSetWindowOrientation(strcmp(mode, "portrait") == 0);
}
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
#endif
NS_IMETHODIMP
nsNativeAppSupportUnix::Start(bool *aRetVal)
{
NS_ASSERTION(gAppData, "gAppData must not be null.");
#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(NULL,
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
#if (MOZ_PLATFORM_MAEMO == 5)
/* zero state out. */
memset(&m_hw_state, 0, sizeof(osso_hw_state_t));
/* Initialize maemo application
The initalization name will be of the form "Vendor.Name".
If a Vendor isn't given, then we will just use "Name".
Note that this value must match your X-Osso-Service name
defined in your desktop file. If it doesn't, the OSSO
system will happily kill your process.
*/
nsAutoCString applicationName;
if (gAppData->vendor) {
applicationName.Append(gAppData->vendor);
applicationName.Append(".");
}
applicationName.Append(gAppData->name);
ToLowerCase(applicationName);
m_osso_context = osso_initialize(applicationName.get(),
gAppData->version ? gAppData->version : "1.0",
true,
nullptr);
/* Check that initilialization was ok */
if (m_osso_context == nullptr) {
return NS_ERROR_FAILURE;
}
osso_hw_set_event_cb(m_osso_context, nullptr, OssoHardwareCallback, &m_hw_state);
osso_hw_set_display_event_cb(m_osso_context, OssoDisplayCallback, m_osso_context);
osso_rpc_set_default_cb_f(m_osso_context, OssoDbusCallback, nullptr);
// Setup an MCE callback to monitor orientation
DBusConnection *connnection = (DBusConnection*)osso_get_sys_dbus_connection(m_osso_context);
dbus_bus_add_match(connnection, MCE_MATCH_RULE, nullptr);
dbus_connection_add_filter(connnection, OssoModeControlCallback, nullptr, nullptr);
#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, NULL);
}
#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), NULL);
g_signal_connect(client, "die", G_CALLBACK(die_cb), NULL);
// 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;
#if (MOZ_PLATFORM_MAEMO == 5)
if (m_osso_context) {
// Disable the accelerometer when closing
OssoRequestAccelerometer(m_osso_context, false);
// Remove the MCE callback filter
DBusConnection *connnection = (DBusConnection*)osso_get_sys_dbus_connection(m_osso_context);
dbus_connection_remove_filter(connnection, OssoModeControlCallback, nullptr);
osso_hw_unset_event_cb(m_osso_context, nullptr);
osso_rpc_unset_default_cb_f(m_osso_context, OssoDbusCallback, nullptr);
osso_deinitialize(m_osso_context);
m_osso_context = nullptr;
}
#endif
return NS_OK;
}
NS_IMETHODIMP
nsNativeAppSupportUnix::Enable()
{
#if (MOZ_PLATFORM_MAEMO == 5)
// Enable the accelerometer for orientation support
if (OssoIsScreenOn(m_osso_context))
OssoRequestAccelerometer(m_osso_context, true);
#endif
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;
}
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