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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
// SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
// SPDX-FileCopyrightText: 2010 litl, LLC.
#include <config.h>
#include <cairo.h>
#include <js/CallArgs.h>
#include <js/PropertyDescriptor.h> // for JSPROP_READONLY
#include <js/PropertySpec.h>
#include <js/RootingAPI.h>
#include <js/TypeDecls.h>
#include <jsapi.h> // for JS_NewObjectWithGivenProto
#include <jspubtd.h> // for JSProtoKey
#include "gjs/auto.h"
#include "gjs/jsapi-util-args.h"
#include "gjs/jsapi-util.h"
#include "gjs/macros.h"
#include "modules/cairo-private.h"
JSObject* CairoImageSurface::new_proto(JSContext* cx, JSProtoKey) {
JS::RootedObject parent_proto(cx, CairoSurface::prototype(cx));
return JS_NewObjectWithGivenProto(cx, nullptr, parent_proto);
}
cairo_surface_t* CairoImageSurface::constructor_impl(JSContext* cx,
const JS::CallArgs& args) {
int format, width, height;
// create_for_data optional parameter
if (!gjs_parse_call_args(cx, "ImageSurface", args, "iii", "format", &format,
"width", &width, "height", &height))
return nullptr;
cairo_surface_t* surface =
cairo_image_surface_create((cairo_format_t)format, width, height);
if (!gjs_cairo_check_status(cx, cairo_surface_status(surface), "surface"))
return nullptr;
return surface;
}
// clang-format off
const JSPropertySpec CairoImageSurface::proto_props[] = {
JS_STRING_SYM_PS(toStringTag, "ImageSurface", JSPROP_READONLY),
JS_PS_END};
// clang-format on
GJS_JSAPI_RETURN_CONVENTION
static bool createFromPNG_func(JSContext* cx, unsigned argc, JS::Value* vp) {
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
Gjs::AutoChar filename;
if (!gjs_parse_call_args(cx, "createFromPNG", args, "F", "filename",
&filename))
return false;
cairo_surface_t* surface = cairo_image_surface_create_from_png(filename);
if (!gjs_cairo_check_status(cx, cairo_surface_status(surface), "surface"))
return false;
JSObject* surface_wrapper = CairoImageSurface::from_c_ptr(cx, surface);
if (!surface_wrapper)
return false;
cairo_surface_destroy(surface);
args.rval().setObject(*surface_wrapper);
return true;
}
GJS_JSAPI_RETURN_CONVENTION
static bool getFormat_func(JSContext* cx, unsigned argc, JS::Value* vp) {
GJS_GET_THIS(cx, argc, vp, rec, obj);
if (argc > 1) {
gjs_throw(cx, "ImageSurface.getFormat() takes no arguments");
return false;
}
cairo_surface_t* surface = CairoSurface::for_js(cx, obj);
if (!surface)
return false;
cairo_format_t format = cairo_image_surface_get_format(surface);
if (!gjs_cairo_check_status(cx, cairo_surface_status(surface), "surface"))
return false;
rec.rval().setInt32(format);
return true;
}
GJS_JSAPI_RETURN_CONVENTION
static bool getWidth_func(JSContext* cx, unsigned argc, JS::Value* vp) {
GJS_GET_THIS(cx, argc, vp, rec, obj);
if (argc > 1) {
gjs_throw(cx, "ImageSurface.getWidth() takes no arguments");
return false;
}
cairo_surface_t* surface = CairoSurface::for_js(cx, obj);
if (!surface)
return false;
int width = cairo_image_surface_get_width(surface);
if (!gjs_cairo_check_status(cx, cairo_surface_status(surface), "surface"))
return false;
rec.rval().setInt32(width);
return true;
}
GJS_JSAPI_RETURN_CONVENTION
static bool getHeight_func(JSContext* cx, unsigned argc, JS::Value* vp) {
GJS_GET_THIS(cx, argc, vp, rec, obj);
if (argc > 1) {
gjs_throw(cx, "ImageSurface.getHeight() takes no arguments");
return false;
}
cairo_surface_t* surface = CairoSurface::for_js(cx, obj);
if (!surface)
return false;
int height = cairo_image_surface_get_height(surface);
if (!gjs_cairo_check_status(cx, cairo_surface_status(surface), "surface"))
return false;
rec.rval().setInt32(height);
return true;
}
GJS_JSAPI_RETURN_CONVENTION
static bool getStride_func(JSContext* cx, unsigned argc, JS::Value* vp) {
GJS_GET_THIS(cx, argc, vp, rec, obj);
if (argc > 1) {
gjs_throw(cx, "ImageSurface.getStride() takes no arguments");
return false;
}
cairo_surface_t* surface = CairoSurface::for_js(cx, obj);
if (!surface)
return false;
int stride = cairo_image_surface_get_stride(surface);
if (!gjs_cairo_check_status(cx, cairo_surface_status(surface), "surface"))
return false;
rec.rval().setInt32(stride);
return true;
}
const JSFunctionSpec CairoImageSurface::proto_funcs[] = {
JS_FN("createFromPNG", createFromPNG_func, 0, 0),
// getData
JS_FN("getFormat", getFormat_func, 0, 0),
JS_FN("getWidth", getWidth_func, 0, 0),
JS_FN("getHeight", getHeight_func, 0, 0),
JS_FN("getStride", getStride_func, 0, 0), JS_FS_END};
const JSFunctionSpec CairoImageSurface::static_funcs[] = {
JS_FN("createFromPNG", createFromPNG_func, 1, GJS_MODULE_PROP_FLAGS),
JS_FS_END};
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