static JSBool
getSource_func(JSContext *context,
unsigned argc,
jsval *vp)
{
JS::CallReceiver rec = JS::CallReceiverFromVp(vp);
JSObject *obj = JSVAL_TO_OBJECT(rec.thisv());
cairo_t *cr;
cairo_pattern_t *pattern;
JSObject *pattern_wrapper;
if (argc > 0) {
gjs_throw(context, "Context.getSource() takes no arguments");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
pattern = cairo_get_source(cr);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
/* pattern belongs to the context, so keep the reference */
pattern_wrapper = gjs_cairo_pattern_from_pattern(context, pattern);
if (!pattern_wrapper) {
gjs_throw(context, "failed to create pattern");
return JS_FALSE;
}
rec.rval().set(OBJECT_TO_JSVAL(pattern_wrapper));
return JS_TRUE;
}
static GIFieldInfo *
get_field_info (JSContext *context,
Boxed *priv,
jsid id)
{
int field_index;
jsval id_val;
if (!JS_IdToValue(context, id, &id_val))
return JS_FALSE;
if (!JSVAL_IS_INT (id_val)) {
gjs_throw(context, "Field index for %s is not an integer",
g_base_info_get_name ((GIBaseInfo *)priv->info));
return NULL;
}
field_index = JSVAL_TO_INT(id_val);
if (field_index < 0 || field_index >= g_struct_info_get_n_fields (priv->info)) {
gjs_throw(context, "Bad field index %d for %s", field_index,
g_base_info_get_name ((GIBaseInfo *)priv->info));
return NULL;
}
return g_struct_info_get_field (priv->info, field_index);
}
/**
* gjs_string_from_ucs4:
* @cx: a #JSContext
* @ucs4_string: string of #gunichar
* @n_chars: number of characters in @ucs4_string or -1 for zero-terminated
* @value_p: JS::Value that will be filled with a string
*
* Returns: true on success, false otherwise in which case a JS error is thrown
*/
bool
gjs_string_from_ucs4(JSContext *cx,
const gunichar *ucs4_string,
ssize_t n_chars,
JS::MutableHandleValue value_p)
{
long u16_string_length;
GError *error = NULL;
char16_t *u16_string =
reinterpret_cast<char16_t *>(g_ucs4_to_utf16(ucs4_string, n_chars, NULL,
&u16_string_length, &error));
if (!u16_string) {
gjs_throw(cx, "Failed to convert UCS-4 string to UTF-16: %s",
error->message);
g_error_free(error);
return false;
}
JSAutoRequest ar(cx);
/* Avoid a copy - assumes that g_malloc == js_malloc == malloc */
JS::RootedString str(cx, JS_NewUCString(cx, u16_string, u16_string_length));
if (!str) {
gjs_throw(cx, "Failed to convert UCS-4 string to UTF-16");
return false;
}
value_p.setString(str);
return true;
}
static bool
getSource_func(JSContext *context,
unsigned argc,
JS::Value *vp)
{
GJS_GET_PRIV(context, argc, vp, rec, obj, GjsCairoContext, priv);
cairo_t *cr = priv ? priv->cr : NULL;
cairo_pattern_t *pattern;
JSObject *pattern_wrapper;
if (argc > 0) {
gjs_throw(context, "Context.getSource() takes no arguments");
return false;
}
pattern = cairo_get_source(cr);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return false;
/* pattern belongs to the context, so keep the reference */
pattern_wrapper = gjs_cairo_pattern_from_pattern(context, pattern);
if (!pattern_wrapper) {
gjs_throw(context, "failed to create pattern");
return false;
}
rec.rval().setObject(*pattern_wrapper);
return true;
}
void*
gjs_g_fundamental_from_object(JSContext *context,
JSObject *obj)
{
FundamentalInstance *priv;
if (obj == NULL)
return NULL;
priv = priv_from_js(context, obj);
if (priv == NULL) {
gjs_throw(context,
"No introspection information for %p", obj);
return NULL;
}
if (priv->gfundamental == NULL) {
gjs_throw(context,
"Object is %s.%s.prototype, not an object instance - cannot convert to a fundamental instance",
g_base_info_get_namespace((GIBaseInfo *) priv->prototype->info),
g_base_info_get_name((GIBaseInfo *) priv->prototype->info));
return NULL;
}
return priv->gfundamental;
}
static JSBool
getSource_func(JSContext *context,
uintN argc,
jsval *vp)
{
JSObject *obj = JS_THIS_OBJECT(context, vp);
cairo_t *cr;
cairo_pattern_t *pattern;
JSObject *pattern_wrapper;
if (argc > 0) {
gjs_throw(context, "Context.getSource() takes no arguments");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
pattern = cairo_get_source(cr);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
/* pattern belongs to the context, so keep the reference */
pattern_wrapper = gjs_cairo_pattern_from_pattern(context, pattern);
if (!pattern_wrapper) {
gjs_throw(context, "failed to create pattern");
return JS_FALSE;
}
JS_SET_RVAL(context, vp, OBJECT_TO_JSVAL(pattern_wrapper));
return JS_TRUE;
}
static JSBool gjs_gtkbuilder_connect_signals (JSContext *context,
uintN argc,
jsval *vp)
{
jsval *argv = JS_ARGV (context, vp);
JSObject *obj = JS_THIS_OBJECT (context, vp);
GtkBuilder *builder;
builder_ud ud;
builder = GTK_BUILDER (gjs_g_object_from_object (context, obj));
if (NULL == builder) {
gjs_throw (context, "Gtk.Builder.connect_signals () invalid this");
return JS_FALSE;
}
if (argc < 1) {
gjs_throw (context, "Gtk.Builder.connect_signals () takes arguments");
return JS_FALSE;
}
ud.ctx = context;
ud.obj = JSVAL_TO_OBJECT (argv[0]);
gtk_builder_connect_signals_full (builder,
_gjs_builder_connect_func,
&ud);
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
JSObject*
gjs_construct_object_dynamic(JSContext *context,
JSObject *proto,
uintN argc,
jsval *argv)
{
RuntimeData *rd;
JSClass *proto_class;
JSContext *load_context;
JSObject *result;
JS_BeginRequest(context);
/* We replace the passed-in context and global object with our
* runtime-global permanent load context. Otherwise, JS_ConstructObject
* can't find the constructor in whatever random global object is set
* on the passed-in context.
*/
load_context = gjs_runtime_get_load_context(JS_GetRuntime(context));
JS_BeginRequest(load_context);
proto_class = JS_GET_CLASS(load_context, proto);
rd = get_data_from_context(load_context);
/* Check that it's safe to cast to DynamicJSClass */
if (g_hash_table_lookup(rd->dynamic_classes, proto_class) == NULL) {
gjs_throw(load_context, "Prototype is not for a dynamically-registered class");
goto error;
}
gjs_debug_lifecycle(GJS_DEBUG_GREPO,
"Constructing instance of dynamic class %s %p from proto %p",
proto_class->name, proto_class, proto);
if (argc > 0)
result = JS_ConstructObjectWithArguments(load_context, proto_class, proto, NULL, argc, argv);
else
result = JS_ConstructObject(load_context, proto_class, proto, NULL);
if (!result)
goto error;
JS_EndRequest(load_context);
JS_EndRequest(context);
return result;
error:
/* Move the exception to the calling context from load context.
*/
if (!gjs_move_exception(load_context, context)) {
/* set an exception since none was set */
gjs_throw(context, "No exception was set, but object construction failed somehow");
}
JS_EndRequest(load_context);
JS_EndRequest(context);
return NULL;
}
static bool
setDash_func(JSContext *context,
unsigned argc,
JS::Value *vp)
{
GJS_GET_PRIV(context, argc, vp, argv, obj, GjsCairoContext, priv);
guint i;
cairo_t *cr = priv ? priv->cr : NULL;
JS::RootedObject dashes(context);
double offset;
guint len;
if (!gjs_parse_call_args(context, "setDash", argv, "of",
"dashes", &dashes,
"offset", &offset))
return false;
if (!JS_IsArrayObject(context, dashes)) {
gjs_throw(context, "dashes must be an array");
return false;
}
if (!JS_GetArrayLength(context, dashes, &len)) {
gjs_throw(context, "Can't get length of dashes");
return false;
}
std::vector<double> dashes_c;
dashes_c.reserve(len);
JS::RootedValue elem(context);
for (i = 0; i < len; ++i) {
double b;
elem.setUndefined();
if (!JS_GetElement(context, dashes, i, &elem)) {
return false;
}
if (elem.isUndefined())
continue;
if (!JS::ToNumber(context, elem, &b))
return false;
if (b <= 0) {
gjs_throw(context, "Dash value must be positive");
return false;
}
dashes_c.push_back(b);
}
cairo_set_dash(cr, &dashes_c[0], dashes_c.size(), offset);
argv.rval().setUndefined();
return true;
}
static JSBool
getGroupTarget_func(JSContext *context,
unsigned argc,
jsval *vp)
{
JS::CallReceiver rec = JS::CallReceiverFromVp(vp);
JSObject *obj = JSVAL_TO_OBJECT(rec.thisv());
cairo_t *cr;
cairo_surface_t *surface;
JSObject *surface_wrapper;
if (argc > 0) {
gjs_throw(context, "Context.getGroupTarget() takes no arguments");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
surface = cairo_get_group_target(cr);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
/* surface belongs to the context, so keep the reference */
surface_wrapper = gjs_cairo_surface_from_surface(context, surface);
if (!surface_wrapper) {
/* exception already set */
return JS_FALSE;
}
rec.rval().set(OBJECT_TO_JSVAL(surface_wrapper));
return JS_TRUE;
}
static JSBool
get_version_for_ns (JSContext *context,
JSObject *repo_obj,
jsid ns_id,
char **version)
{
jsid versions_name;
jsval versions_val;
JSObject *versions;
jsval version_val;
versions_name = gjs_context_get_const_string(context, GJS_STRING_GI_VERSIONS);
if (!gjs_object_require_property(context, repo_obj, "GI repository object", versions_name, &versions_val) ||
!JSVAL_IS_OBJECT(versions_val)) {
gjs_throw(context, "No 'versions' property in GI repository object");
return JS_FALSE;
}
versions = JSVAL_TO_OBJECT(versions_val);
*version = NULL;
if (JS_GetPropertyById(context, versions, ns_id, &version_val) &&
JSVAL_IS_STRING(version_val)) {
gjs_string_to_utf8(context, version_val, version);
}
return JS_TRUE;
}
static JSBool
setSource_func(JSContext *context,
unsigned argc,
jsval *vp)
{
JS::CallArgs argv = JS::CallArgsFromVp (argc, vp);
JSObject *obj = JSVAL_TO_OBJECT(argv.thisv());
JSObject *pattern_wrapper;
cairo_pattern_t *pattern;
cairo_t *cr;
if (!gjs_parse_call_args(context, "setSource", "o", argv,
"pattern", &pattern_wrapper))
return JS_FALSE;
pattern = gjs_cairo_pattern_get_pattern(context, pattern_wrapper);
if (!pattern) {
gjs_throw(context, "first argument to setSource() should be a pattern");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
cairo_set_source(cr, pattern);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
argv.rval().set(JSVAL_VOID);
return JS_TRUE;
}
GError*
gjs_gerror_from_error(JSContext *context,
JSObject *obj)
{
Error *priv;
if (obj == NULL)
return NULL;
/* If this is a plain GBoxed (i.e. a GError without metadata),
delegate marshalling.
*/
if (gjs_typecheck_boxed (context, obj, NULL, G_TYPE_ERROR, JS_FALSE))
return gjs_c_struct_from_boxed (context, obj);
priv = priv_from_js(context, obj);
if (priv == NULL)
return NULL;
if (priv->gerror == NULL) {
gjs_throw(context,
"Object is %s.%s.prototype, not an object instance - cannot convert to a boxed instance",
g_base_info_get_namespace( (GIBaseInfo*) priv->info),
g_base_info_get_name( (GIBaseInfo*) priv->info));
return NULL;
}
return priv->gerror;
}
/**
* gjs_cairo_path_from_path:
* @context: the context
* @path: cairo_path_t to attach to the object
*
* Constructs a pattern wrapper given cairo pattern.
* NOTE: This function takes ownership of the path.
*/
JSObject *
gjs_cairo_path_from_path(JSContext *context,
cairo_path_t *path)
{
JSObject *object;
GjsCairoPath *priv;
g_return_val_if_fail(context != NULL, NULL);
g_return_val_if_fail(path != NULL, NULL);
object = JS_NewObject(context, &gjs_cairo_path_class, NULL, NULL);
if (!object) {
gjs_throw(context, "failed to create path");
return NULL;
}
priv = g_slice_new0(GjsCairoPath);
g_assert(priv_from_js(context, object) == NULL);
JS_SetPrivate(context, object, priv);
priv->context = context;
priv->object = object;
priv->path = path;
return object;
}
static JSBool
setSourceSurface_func(JSContext *context,
uintN argc,
jsval *vp)
{
jsval *argv = JS_ARGV(context, vp);
JSObject *obj = JS_THIS_OBJECT(context, vp);
JSObject *surface_wrapper;
double x, y;
cairo_surface_t *surface;
cairo_t *cr;
if (!gjs_parse_args(context, "setSourceSurface", "off", argc, argv,
"surface", &surface_wrapper,
"x", &x,
"y", &y))
return JS_FALSE;
surface = gjs_cairo_surface_get_surface(context, surface_wrapper);
if (!surface) {
gjs_throw(context, "first argument to setSourceSurface() should be a surface");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
cairo_set_source_surface(cr, surface, x, y);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
/**
* gjs_cairo_surface_from_surface:
* @context: the context
* @surface: cairo_surface to attach to the object
*
* Constructs a surface wrapper given cairo surface.
* A reference to @surface will be taken.
*
*/
JSObject *
gjs_cairo_surface_from_surface(JSContext *context,
cairo_surface_t *surface)
{
g_return_val_if_fail(context != NULL, NULL);
g_return_val_if_fail(surface != NULL, NULL);
cairo_surface_type_t type = cairo_surface_get_type(surface);
if (type == CAIRO_SURFACE_TYPE_IMAGE)
return gjs_cairo_image_surface_from_surface(context, surface);
if (type == CAIRO_SURFACE_TYPE_PDF)
return gjs_cairo_pdf_surface_from_surface(context, surface);
if (type == CAIRO_SURFACE_TYPE_PS)
return gjs_cairo_ps_surface_from_surface(context, surface);
if (type == CAIRO_SURFACE_TYPE_SVG)
return gjs_cairo_svg_surface_from_surface(context, surface);
JS::RootedObject proto(context, gjs_cairo_surface_get_proto(context));
JS::RootedObject object(context,
JS_NewObjectWithGivenProto(context, &gjs_cairo_surface_class, proto));
if (!object) {
gjs_throw(context, "failed to create surface");
return NULL;
}
gjs_cairo_surface_construct(context, object, surface);
return object;
}
static bool
getGroupTarget_func(JSContext *context,
unsigned argc,
JS::Value *vp)
{
GJS_GET_PRIV(context, argc, vp, rec, obj, GjsCairoContext, priv);
cairo_t *cr = priv ? priv->cr : NULL;
cairo_surface_t *surface;
JSObject *surface_wrapper;
if (argc > 0) {
gjs_throw(context, "Context.getGroupTarget() takes no arguments");
return false;
}
surface = cairo_get_group_target(cr);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return false;
/* surface belongs to the context, so keep the reference */
surface_wrapper = gjs_cairo_surface_from_surface(context, surface);
if (!surface_wrapper) {
/* exception already set */
return false;
}
rec.rval().setObject(*surface_wrapper);
return true;
}
static GjsForeignInfo *
gjs_struct_foreign_lookup(JSContext *context,
GIBaseInfo *interface_info)
{
GjsForeignInfo *retval = NULL;
GHashTable *hash_table;
char *key;
key = g_strdup_printf("%s.%s",
g_base_info_get_namespace(interface_info),
g_base_info_get_name(interface_info));
hash_table = get_foreign_structs();
retval = (GjsForeignInfo*)g_hash_table_lookup(hash_table, key);
if (!retval) {
if (gjs_foreign_load_foreign_module(context, g_base_info_get_namespace(interface_info))) {
retval = (GjsForeignInfo*)g_hash_table_lookup(hash_table, key);
}
}
if (!retval) {
gjs_throw(context, "Unable to find module implementing foreign type %s.%s",
g_base_info_get_namespace(interface_info),
g_base_info_get_name(interface_info));
}
g_free(key);
return retval;
}
static bool
setSource_func(JSContext *context,
unsigned argc,
JS::Value *vp)
{
GJS_GET_PRIV(context, argc, vp, argv, obj, GjsCairoContext, priv);
JS::RootedObject pattern_wrapper(context);
cairo_pattern_t *pattern;
cairo_t *cr = priv ? priv->cr : NULL;
if (!gjs_parse_call_args(context, "setSource", argv, "o",
"pattern", &pattern_wrapper))
return false;
pattern = gjs_cairo_pattern_get_pattern(context, pattern_wrapper);
if (!pattern) {
gjs_throw(context, "first argument to setSource() should be a pattern");
return false;
}
cairo_set_source(cr, pattern);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return false;
argv.rval().setUndefined();
return true;
}
static JSBool
createFromPNG_func(JSContext *context,
JSObject *obj,
uintN argc,
jsval *argv,
jsval *retval)
{
char *filename;
cairo_surface_t *surface;
JSObject *surface_wrapper;
if (!gjs_parse_args(context, "createFromPNG", "s", argc, argv,
"filename", &filename))
return JS_FALSE;
surface = cairo_image_surface_create_from_png(filename);
if (!gjs_cairo_check_status(context, cairo_surface_status(surface), "surface"))
return JS_FALSE;
surface_wrapper = JS_NewObject(context, &gjs_cairo_image_surface_class, NULL, NULL);
if (!surface_wrapper) {
gjs_throw(context, "failed to create surface");
return JS_FALSE;
}
gjs_cairo_surface_construct(context, surface_wrapper, surface);
cairo_surface_destroy(surface);
*retval = OBJECT_TO_JSVAL(surface_wrapper);
return JS_TRUE;
}
static JSBool
getGroupTarget_func(JSContext *context,
uintN argc,
jsval *vp)
{
JSObject *obj = JS_THIS_OBJECT(context, vp);
cairo_t *cr;
cairo_surface_t *surface;
JSObject *surface_wrapper;
if (argc > 0) {
gjs_throw(context, "Context.getGroupTarget() takes no arguments");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
surface = cairo_get_group_target(cr);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
/* surface belongs to the context, so keep the reference */
surface_wrapper = gjs_cairo_surface_from_surface(context, surface);
if (!surface_wrapper) {
/* exception already set */
return JS_FALSE;
}
JS_SET_RVAL(context, vp, OBJECT_TO_JSVAL(surface_wrapper));
return JS_TRUE;
}
static JSBool
appendPath_func(JSContext *context,
uintN argc,
jsval *vp)
{
jsval *argv = JS_ARGV(context, vp);
JSObject *obj = JS_THIS_OBJECT(context, vp);
JSObject *path_wrapper;
cairo_path_t *path;
cairo_t *cr;
if (!gjs_parse_args(context, "path", "o", argc, argv,
"path", &path_wrapper))
return JS_FALSE;
path = gjs_cairo_path_get_path(context, path_wrapper);
if (!path) {
gjs_throw(context, "first argument to appendPath() should be a path");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
cairo_append_path(cr, path);
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
static JSBool
boxed_field_setter (JSContext *context,
JSObject *obj,
jsid id,
JSBool strict,
jsval *value)
{
Boxed *priv;
GIFieldInfo *field_info;
gboolean success = FALSE;
priv = priv_from_js(context, obj);
if (!priv)
return JS_FALSE;
field_info = get_field_info(context, priv, id);
if (!field_info)
return JS_FALSE;
if (priv->gboxed == NULL) { /* direct access to proto field */
gjs_throw(context, "Can't set field %s.%s on prototype",
g_base_info_get_name ((GIBaseInfo *)priv->info),
g_base_info_get_name ((GIBaseInfo *)field_info));
goto out;
}
success = boxed_set_field_from_value (context, priv, field_info, *value);
out:
g_base_info_unref ((GIBaseInfo *)field_info);
return success;
}
static JSBool
gjs_importer_add_subimporter(JSContext *context,
unsigned argc,
jsval *vp)
{
if (argc != 2) {
gjs_throw(context, "Must pass two arguments to addSubImporter()");
return JS_FALSE;
}
JSObject *importer;
jsval *argv = JS_ARGV(context, vp);
char *name;
char *path;
char *search_path[2] = { 0, 0 };
JS_BeginRequest(context);
importer = JS_THIS_OBJECT(context, vp);
gjs_string_to_utf8(context, argv[0], &name);
gjs_string_to_utf8(context, argv[1], &path);
search_path[0] = path;
gjs_define_importer(context, importer, name, (const char **)search_path, FALSE);
JS_EndRequest(context);
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
/**
* gjs_cairo_surface_from_surface:
* @context: the context
* @surface: cairo_surface to attach to the object
*
* Constructs a surface wrapper given cairo surface.
* A reference to @surface will be taken.
*
*/
JSObject *
gjs_cairo_surface_from_surface(JSContext *context,
cairo_surface_t *surface)
{
JSObject *object;
g_return_val_if_fail(context != NULL, NULL);
g_return_val_if_fail(surface != NULL, NULL);
switch (cairo_surface_get_type(surface)) {
case CAIRO_SURFACE_TYPE_IMAGE:
return gjs_cairo_image_surface_from_surface(context, surface);
case CAIRO_SURFACE_TYPE_PDF:
return gjs_cairo_pdf_surface_from_surface(context, surface);
/*
case CAIRO_SURFACE_TYPE_PS:
return gjs_cairo_ps_surface_from_surface(context, surface);
*/
case CAIRO_SURFACE_TYPE_SVG:
return gjs_cairo_svg_surface_from_surface(context, surface);
default:
break;
}
object = JS_NewObject(context, &gjs_cairo_surface_class, NULL, NULL);
if (!object) {
gjs_throw(context, "failed to create surface");
return NULL;
}
gjs_cairo_surface_construct(context, object, surface);
return object;
}
static JSBool
appendPath_func(JSContext *context,
unsigned argc,
jsval *vp)
{
JS::CallArgs argv = JS::CallArgsFromVp (argc, vp);
JSObject *obj = JSVAL_TO_OBJECT(argv.thisv());
JSObject *path_wrapper;
cairo_path_t *path;
cairo_t *cr;
if (!gjs_parse_call_args(context, "path", "o", argv,
"path", &path_wrapper))
return JS_FALSE;
path = gjs_cairo_path_get_path(context, path_wrapper);
if (!path) {
gjs_throw(context, "first argument to appendPath() should be a path");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
cairo_append_path(cr, path);
argv.rval().set(JSVAL_VOID);
return JS_TRUE;
}
static bool
setSourceSurface_func(JSContext *context,
unsigned argc,
JS::Value *vp)
{
GJS_GET_PRIV(context, argc, vp, argv, obj, GjsCairoContext, priv);
JS::RootedObject surface_wrapper(context);
double x, y;
cairo_surface_t *surface;
cairo_t *cr = priv ? priv->cr : NULL;
if (!gjs_parse_call_args(context, "setSourceSurface", argv, "off",
"surface", &surface_wrapper,
"x", &x,
"y", &y))
return false;
surface = gjs_cairo_surface_get_surface(context, surface_wrapper);
if (!surface) {
gjs_throw(context, "first argument to setSourceSurface() should be a surface");
return false;
}
cairo_set_source_surface(cr, surface, x, y);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return false;
argv.rval().setUndefined();
return true;
}
static JSBool
maskSurface_func(JSContext *context,
unsigned argc,
jsval *vp)
{
JS::CallArgs argv = JS::CallArgsFromVp (argc, vp);
JSObject *obj = JSVAL_TO_OBJECT(argv.thisv());
JSObject *surface_wrapper;
double x, y;
cairo_surface_t *surface;
cairo_t *cr;
if (!gjs_parse_call_args(context, "maskSurface", "off", argv,
"surface", &surface_wrapper,
"x", &x,
"y", &y))
return JS_FALSE;
surface = gjs_cairo_surface_get_surface(context, surface_wrapper);
if (!surface) {
gjs_throw(context, "first argument to maskSurface() should be a surface");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
cairo_mask_surface(cr, surface, x, y);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
argv.rval().set(JSVAL_VOID);
return JS_TRUE;
}
bool
gjs_lookup_interface_constructor(JSContext *context,
GType gtype,
JS::MutableHandleValue value_p)
{
JSObject *constructor;
GIBaseInfo *interface_info;
interface_info = g_irepository_find_by_gtype(NULL, gtype);
if (interface_info == NULL) {
gjs_throw(context, "Cannot expose non introspectable interface %s",
g_type_name(gtype));
return false;
}
g_assert(g_base_info_get_type(interface_info) ==
GI_INFO_TYPE_INTERFACE);
constructor = gjs_lookup_generic_constructor(context, interface_info);
if (G_UNLIKELY (constructor == NULL))
return false;
g_base_info_unref(interface_info);
value_p.setObject(*constructor);
return true;
}
static JSBool
setSource_func(JSContext *context,
uintN argc,
jsval *vp)
{
jsval *argv = JS_ARGV(context, vp);
JSObject *obj = JS_THIS_OBJECT(context, vp);
JSObject *pattern_wrapper;
cairo_pattern_t *pattern;
cairo_t *cr;
if (!gjs_parse_args(context, "setSource", "o", argc, argv,
"pattern", &pattern_wrapper))
return JS_FALSE;
pattern = gjs_cairo_pattern_get_pattern(context, pattern_wrapper);
if (!pattern) {
gjs_throw(context, "first argument to setSource() should be a pattern");
return JS_FALSE;
}
cr = gjs_cairo_context_get_context(context, obj);
cairo_set_source(cr, pattern);
if (!gjs_cairo_check_status(context, cairo_status(cr), "context"))
return JS_FALSE;
JS_SET_RVAL(context, vp, JSVAL_VOID);
return JS_TRUE;
}
