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[quickjs] implementation.c

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This commit is contained in:
Witold Filipczyk 2021-10-30 19:19:39 +02:00
parent e15d58dfd1
commit 307ec0d173
3 changed files with 151 additions and 1 deletions
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139
src/ecmascript/quickjs/implementation.c Normal file
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/* The QuickJS domimplementation object. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "elinks.h"
#include "ecmascript/ecmascript.h"
//#include "ecmascript/quickjs/document.h"
#include "ecmascript/quickjs/implementation.h"
#include "util/conv.h"
#include <libxml/HTMLparser.h>
#include <libxml++/libxml++.h>
#define countof(x) (sizeof(x) / sizeof((x)[0]))
static JSClassID js_implementation_class_id;
JSValue
getDocument(JSContext *ctx, void *doc)
{
// placeholder
return JS_NULL;
}
static JSValue
js_implementation_createHTMLDocument(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
if (argc != 1) {
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return JS_UNDEFINED;
}
size_t len;
const char *title = JS_ToCStringLen(ctx, &len, argv[0]);
if (!title) {
return JS_EXCEPTION;
}
struct string str;
if (!init_string(&str)) {
JS_FreeCString(ctx, title);
return JS_NULL;
}
add_to_string(&str, "<!doctype html>\n<html><head><title>");
add_html_to_string(&str, title, len);
add_to_string(&str, "</title></head><body></body></html>");
// Parse HTML and create a DOM tree
xmlDoc* doc = htmlReadDoc((xmlChar*)str.source, NULL, "utf-8",
HTML_PARSE_RECOVER | HTML_PARSE_NOERROR | HTML_PARSE_NOWARNING);
// Encapsulate raw libxml document in a libxml++ wrapper
xmlpp::Document *docu = new xmlpp::Document(doc);
done_string(&str);
JS_FreeCString(ctx, title);
return getDocument(ctx, docu);
}
static const JSCFunctionListEntry js_implementation_proto_funcs[] = {
JS_CFUNC_DEF("createHTMLDocument", 1, js_implementation_createHTMLDocument),
};
static JSClassDef js_implementation_class = {
"implementation",
};
static JSValue
js_implementation_ctor(JSContext *ctx, JSValueConst new_target, int argc, JSValueConst *argv)
{
JSValue obj = JS_UNDEFINED;
JSValue proto;
/* using new_target to get the prototype is necessary when the
class is extended. */
proto = JS_GetPropertyStr(ctx, new_target, "prototype");
if (JS_IsException(proto)) {
goto fail;
}
obj = JS_NewObjectProtoClass(ctx, proto, js_implementation_class_id);
JS_FreeValue(ctx, proto);
if (JS_IsException(obj)) {
goto fail;
}
return obj;
fail:
JS_FreeValue(ctx, obj);
return JS_EXCEPTION;
}
int
js_implementation_init(JSContext *ctx, JSValue global_obj)
{
JSValue implementation_proto, implementation_class;
/* create the implementation class */
JS_NewClassID(&js_implementation_class_id);
JS_NewClass(JS_GetRuntime(ctx), js_implementation_class_id, &js_implementation_class);
implementation_proto = JS_NewObject(ctx);
JS_SetPropertyFunctionList(ctx, implementation_proto, js_implementation_proto_funcs, countof(js_implementation_proto_funcs));
implementation_class = JS_NewCFunction2(ctx, js_implementation_ctor, "implementation", 0, JS_CFUNC_constructor, 0);
/* set proto.constructor and ctor.prototype */
JS_SetConstructor(ctx, implementation_class, implementation_proto);
JS_SetClassProto(ctx, js_implementation_class_id, implementation_proto);
JS_SetPropertyStr(ctx, global_obj, "implementation", implementation_proto);
return 0;
}
JSValue
getImplementation(JSContext *ctx)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
JSValue implementation_obj = JS_NewObject(ctx);
JS_SetPropertyFunctionList(ctx, implementation_obj, js_implementation_proto_funcs, countof(js_implementation_proto_funcs));
// implementation_class = JS_NewCFunction2(ctx, js_implementation_ctor, "implementation", 0, JS_CFUNC_constructor, 0);
// JS_SetConstructor(ctx, implementation_class, implementation_obj);
JS_SetClassProto(ctx, js_implementation_class_id, implementation_obj);
return implementation_obj;
}

11
src/ecmascript/quickjs/implementation.h Normal file
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#ifndef EL__ECMASCRIPT_QUICKJS_IMPLEMENTATION_H
#define EL__ECMASCRIPT_QUICKJS_IMPLEMENTATION_H
#include <quickjs/quickjs.h>
JSValue getImplementation(JSContext *ctx);
#endif

2
src/ecmascript/quickjs/meson.build
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srcs += files('attr.c', 'attributes.c', 'collection.c', 'console.c', 'element.c', 'history.c', 'localstorage.c', 'location.c', 'navigator.c', 'nodelist.c', 'screen.c', 'unibar.c', 'window.c') srcs += files('attr.c', 'attributes.c', 'collection.c', 'console.c', 'element.c', 'history.c', 'implementation.c', 'localstorage.c', 'location.c', 'navigator.c', 'nodelist.c', 'screen.c', 'unibar.c', 'window.c')