Ejemplo n.º 1
0
xpc_LocalizeContext(JSContext *cx)
{
  JSRuntime* rt = JS_GetRuntime(cx);
  PR_CallOnceWithArg(&sHookRuntime, HookRuntime, rt);

  NS_ABORT_IF_FALSE(sHookedRuntime == rt, "created multiple JSRuntimes?");

  JS_SetLocaleCallbacks(cx, new XPCLocaleCallbacks());
}
Ejemplo n.º 2
0
static JSBool
DelocalizeContextCallback(JSContext *cx, uintN contextOp)
{
  NS_ABORT_IF_FALSE(JS_GetRuntime(cx) == sHookedRuntime, "unknown runtime!");

  JSBool ok = JS_TRUE;
  if (sOldContextCallback && !sOldContextCallback(cx, contextOp)) {
    ok = JS_FALSE;
    // Even if the old callback fails, we still have to march on or
    // else we might leak the intl stuff hooked onto |cx|
  }

  if (contextOp == JSCONTEXT_DESTROY) {
    if (XPCLocaleCallbacks* lc = XPCLocaleCallbacks::MaybeThis(cx)) {
      // This is a JSContext for which xpc_LocalizeContext() was called.
      JS_SetLocaleCallbacks(cx, nsnull);
      delete lc;
    }
  }

  return ok;
}
Ejemplo n.º 3
0
xpc_LocalizeRuntime(JSRuntime *rt)
{
  JS_SetLocaleCallbacks(rt, new XPCLocaleCallbacks());

  // Set the default locale.
  nsCOMPtr<nsILocaleService> localeService =
    do_GetService(NS_LOCALESERVICE_CONTRACTID);
  if (!localeService)
    return false;

  nsCOMPtr<nsILocale> appLocale;
  nsresult rv = localeService->GetApplicationLocale(getter_AddRefs(appLocale));
  if (NS_FAILED(rv))
    return false;

  nsAutoString localeStr;
  rv = appLocale->GetCategory(NS_LITERAL_STRING(NSILOCALE_TIME), localeStr);
  NS_ASSERTION(NS_SUCCEEDED(rv), "failed to get app locale info");
  NS_LossyConvertUTF16toASCII locale(localeStr);

  return !!JS_SetDefaultLocale(rt, locale.get());
}
Ejemplo n.º 4
0
static GObject*
gjs_context_constructor (GType                  type,
                         guint                  n_construct_properties,
                         GObjectConstructParam *construct_params)
{
    GObject *object;
    GjsContext *js_context;
    guint32 options_flags;
    JSVersion js_version;

    object = (* G_OBJECT_CLASS (gjs_context_parent_class)->constructor) (type,
                                                                         n_construct_properties,
                                                                         construct_params);

    js_context = GJS_CONTEXT(object);

    if (js_context->runtime == NULL) {
        js_context->runtime = JS_NewRuntime(32*1024*1024 /* max bytes */);
        if (js_context->runtime == NULL)
            gjs_fatal("Failed to create javascript runtime");
        JS_SetGCParameter(js_context->runtime, JSGC_MAX_BYTES, 0xffffffff);
        js_context->we_own_runtime = TRUE;
        gjs_runtime_init(js_context->runtime);
    }

    js_context->context = JS_NewContext(js_context->runtime, 8192 /* stack chunk size */);
    if (js_context->context == NULL)
        gjs_fatal("Failed to create javascript context");

    JS_BeginRequest(js_context->context);

    /* same as firefox, see discussion at
     * https://bugzilla.mozilla.org/show_bug.cgi?id=420869 */
    JS_SetScriptStackQuota(js_context->context, 100*1024*1024);

    /* JSOPTION_DONT_REPORT_UNCAUGHT: Don't send exceptions to our
     * error report handler; instead leave them set.  This allows us
     * to get at the exception object.
     *
     * JSOPTION_STRICT: Report warnings to error reporter function.
     */
    options_flags = JSOPTION_DONT_REPORT_UNCAUGHT | JSOPTION_STRICT;

    if (!g_getenv("GJS_DISABLE_JIT")) {
        gjs_debug(GJS_DEBUG_CONTEXT, "Enabling JIT");
        options_flags |= JSOPTION_METHODJIT;
    }

    JS_SetOptions(js_context->context,
                  JS_GetOptions(js_context->context) | options_flags);

    JS_SetLocaleCallbacks(js_context->context, &gjs_locale_callbacks);

    JS_SetErrorReporter(js_context->context, gjs_error_reporter);

    /* set ourselves as the private data */
    JS_SetContextPrivate(js_context->context, js_context);

    js_version = JS_StringToVersion(js_context->jsversion_string);
    /* It doesn't make sense to throw here; just use the default if we
     * don't know.
     */
    if (js_version == JSVERSION_UNKNOWN)
        js_version = JSVERSION_DEFAULT;
    /* Set the version if we need to. */
    if (js_version != JSVERSION_DEFAULT && JS_GetVersion(js_context->context) != js_version) {
        gjs_debug(GJS_DEBUG_CONTEXT,
                  "Changing JavaScript version to %s from %s",
                  JS_VersionToString(js_version),
                  JS_VersionToString(JS_GetVersion(js_context->context)));

        JS_SetVersion(js_context->context, js_version);
    }

    if (!gjs_init_context_standard(js_context->context))
        gjs_fatal("Failed to initialize context");
    js_context->global = JS_GetGlobalObject(js_context->context);

    if (!JS_DefineProperty(js_context->context, js_context->global,
                           "window", OBJECT_TO_JSVAL(js_context->global),
                           NULL, NULL,
                           JSPROP_READONLY | JSPROP_PERMANENT))
        gjs_fatal("No memory to export global object as 'window'");

    /* Define a global function called log() */
    if (!JS_DefineFunction(js_context->context, js_context->global,
                           "log",
                           (JSNative)gjs_log,
                           1, GJS_MODULE_PROP_FLAGS))
        gjs_fatal("Failed to define log function");

    if (!JS_DefineFunction(js_context->context, js_context->global,
                           "logError",
                           (JSNative)gjs_log_error,
                           2, GJS_MODULE_PROP_FLAGS))
        gjs_fatal("Failed to define logError function");

    /* Define global functions called print() and printerr() */
    if (!JS_DefineFunction(js_context->context, js_context->global,
                           "print",
                           (JSNative)gjs_print,
                           3, GJS_MODULE_PROP_FLAGS))
        gjs_fatal("Failed to define print function");
    if (!JS_DefineFunction(js_context->context, js_context->global,
                           "printerr",
                           (JSNative)gjs_printerr,
                           4, GJS_MODULE_PROP_FLAGS))
        gjs_fatal("Failed to define printerr function");

    /* We need to know what the default context is, since it's the context whose
     * global object is used to load imported JS modules. We currently say that
     * it's the context of the runtime's owner, but if we needed to support
     * externally created runtimes, we could define it in some other fashion.
     */
    if (js_context->we_own_runtime) {
        gjs_runtime_set_default_context(js_context->runtime, js_context->context);
    } else {
        if (gjs_runtime_get_default_context(js_context->runtime) == NULL)
            gjs_fatal("GjsContext created for a runtime not owned by GJS");
    }

    /* We create the global-to-runtime root importer with the
     * passed-in search path. If someone else already created
     * the root importer, this is a no-op.
     */
    if (!gjs_create_root_importer(js_context->context,
                                  js_context->search_path ?
                                  (const char**) js_context->search_path :
                                  NULL,
                                  TRUE))
        gjs_fatal("Failed to create root importer");

    /* Now copy the global root importer (which we just created,
     * if it didn't exist) to our global object
     */
    if (!gjs_define_root_importer(js_context->context,
                                  js_context->global,
                                  "imports"))
        gjs_fatal("Failed to point 'imports' property at root importer");

    if (js_context->we_own_runtime) {
        js_context->profiler = gjs_profiler_new(js_context->runtime);
    }

    if (!gjs_is_registered_native_module(js_context->context, NULL, "gi"))
        gjs_register_native_module("gi", gjs_define_gi_stuff, GJS_NATIVE_SUPPLIES_MODULE_OBJ);

    /* For GjsDBus */
    {
        char *priv_typelib_dir = g_build_filename (PKGLIBDIR, "girepository-1.0", NULL);
        g_irepository_prepend_search_path(priv_typelib_dir);
        g_free (priv_typelib_dir);
    }

    if (js_context->gc_notifications_enabled)
        JS_SetGCCallback(js_context->context, gjs_on_context_gc);

    JS_EndRequest(js_context->context);

    g_static_mutex_lock (&contexts_lock);
    all_contexts = g_list_prepend(all_contexts, object);
    g_static_mutex_unlock (&contexts_lock);

    return object;
}
Ejemplo n.º 5
0
xpc_DelocalizeRuntime(JSRuntime *rt)
{
  XPCLocaleCallbacks* lc = XPCLocaleCallbacks::This(rt);
  JS_SetLocaleCallbacks(rt, nullptr);
  delete lc;
}