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mirror of https://github.com/rkd77/elinks.git synced 2024-06-26 01:15:37 +00:00

[quickjs] attributes

This commit is contained in:
Witold Filipczyk 2021-10-26 18:15:08 +02:00
parent 88065002ff
commit 6de8b3e378
4 changed files with 306 additions and 2 deletions

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@ -171,7 +171,7 @@ getAttr(JSContext *ctx, void *node)
JS_SetPropertyFunctionList(ctx, attr_obj, js_attr_proto_funcs, countof(js_attr_proto_funcs));
// attr_class = JS_NewCFunction2(ctx, js_attr_ctor, "attr", 0, JS_CFUNC_constructor, 0);
// JS_SetConstructor(ctx, attr_class, attr_obj);
// JS_SetClassProto(ctx, js_attr_class_id, attr_obj);
JS_SetClassProto(ctx, js_attr_class_id, attr_obj);
JS_SetOpaque(attr_obj, node);

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@ -0,0 +1,296 @@
/* The QuickJS attributes object implementation. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "elinks.h"
#include "bfu/dialog.h"
#include "cache/cache.h"
#include "cookies/cookies.h"
#include "dialogs/menu.h"
#include "dialogs/status.h"
#include "document/html/frames.h"
#include "document/document.h"
#include "document/forms.h"
#include "document/view.h"
#include "ecmascript/ecmascript.h"
#include "ecmascript/quickjs/attr.h"
#include "ecmascript/quickjs/attributes.h"
#include "intl/libintl.h"
#include "main/select.h"
#include "osdep/newwin.h"
#include "osdep/sysname.h"
#include "protocol/http/http.h"
#include "protocol/uri.h"
#include "session/history.h"
#include "session/location.h"
#include "session/session.h"
#include "session/task.h"
#include "terminal/tab.h"
#include "terminal/terminal.h"
#include "util/conv.h"
#include "util/memory.h"
#include "util/string.h"
#include "viewer/text/draw.h"
#include "viewer/text/form.h"
#include "viewer/text/link.h"
#include "viewer/text/vs.h"
#include <libxml/tree.h>
#include <libxml/HTMLparser.h>
#include <libxml++/libxml++.h>
#include <libxml++/attributenode.h>
#include <libxml++/parsers/domparser.h>
#include <iostream>
#include <algorithm>
#include <string>
#define countof(x) (sizeof(x) / sizeof((x)[0]))
static JSClassID js_attributes_class_id;
static void
js_attributes_set_items(JSContext *ctx, JSValue this_val, void *node)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
assert(interpreter);
int counter = 0;
xmlpp::Element::AttributeList *al = JS_GetOpaque(this_val, js_attributes_class_id);
if (!al) {
return;
}
auto it = al->begin();
auto end = al->end();
int i = 0;
for (;it != end; ++it, ++i) {
xmlpp::Attribute *attr = *it;
if (!attr) {
continue;
}
JSValue obj = getAttr(ctx, attr);
JS_SetPropertyUint32(ctx, this_val, i, obj);
xmlpp::ustring name = attr->get_name();
if (name != "" && name != "item" && name != "namedItem") {
JS_DefinePropertyValueStr(ctx, this_val, name.c_str(), obj, 0);
}
}
}
static JSValue
js_attributes_get_property_length(JSContext *ctx, JSValueConst this_val)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
struct view_state *vs = interpreter->vs;
if (!vs) {
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return JS_EXCEPTION;
}
xmlpp::Element::AttributeList *al = JS_GetOpaque(this_val, js_attributes_class_id);
if (!al) {
return JS_NewInt32(ctx, 0);
}
return JS_NewInt32(ctx, al->size());
}
static JSValue
js_attributes_item2(JSContext *ctx, JSValueConst this_val, int idx)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
xmlpp::Element::AttributeList *al = JS_GetOpaque(this_val, js_attributes_class_id);
if (!al) {
return JS_UNDEFINED;
}
auto it = al->begin();
auto end = al->end();
int i = 0;
for (;it != end; it++, i++) {
if (i != idx) {
continue;
}
xmlpp::Attribute *attr = *it;
return getAttr(ctx, attr);
}
return JS_UNDEFINED;
}
static JSValue
js_attributes_item(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
if (argc != 1) {
return JS_EXCEPTION;
}
int index;
JS_ToInt32(ctx, &index, argv[0]);
return js_attributes_item2(ctx, this_val, index);
}
static JSValue
js_attributes_namedItem2(JSContext *ctx, JSValueConst this_val, const char *str)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
xmlpp::Element::AttributeList *al = JS_GetOpaque(this_val, js_attributes_class_id);
if (!al) {
return JS_UNDEFINED;
}
xmlpp::ustring name = str;
auto it = al->begin();
auto end = al->end();
for (; it != end; ++it) {
const auto attr = dynamic_cast<const xmlpp::AttributeNode*>(*it);
if (!attr) {
continue;
}
if (name == attr->get_name()) {
JSValue obj = getAttr(ctx, attr);
return obj;
}
}
return JS_UNDEFINED;
}
static JSValue
js_attributes_getNamedItem(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
if (argc != 1) {
return JS_UNDEFINED;
}
const char *str;
size_t len;
str = JS_ToCStringLen(ctx, &len, argv[0]);
if (!str) {
return JS_EXCEPTION;
}
JSValue ret = js_attributes_namedItem2(ctx, this_val, str);
JS_FreeCString(ctx, str);
return ret;
}
static const JSCFunctionListEntry js_attributes_proto_funcs[] = {
JS_CGETSET_DEF("length", js_attributes_get_property_length, nullptr),
JS_CFUNC_DEF("item", 1, js_attributes_item),
JS_CFUNC_DEF("getNamedItem", 1, js_attributes_getNamedItem),
};
static JSClassDef js_attributes_class = {
"attributes",
};
static JSValue
js_attributes_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_attributes_class_id);
JS_FreeValue(ctx, proto);
if (JS_IsException(obj)) {
goto fail;
}
return obj;
fail:
JS_FreeValue(ctx, obj);
return JS_EXCEPTION;
}
int
js_attributes_init(JSContext *ctx, JSValue global_obj)
{
JSValue attributes_proto, attributes_class;
/* create the attributes class */
JS_NewClassID(&js_attributes_class_id);
JS_NewClass(JS_GetRuntime(ctx), js_attributes_class_id, &js_attributes_class);
attributes_proto = JS_NewObject(ctx);
JS_SetPropertyFunctionList(ctx, attributes_proto, js_attributes_proto_funcs, countof(js_attributes_proto_funcs));
attributes_class = JS_NewCFunction2(ctx, js_attributes_ctor, "attributes", 0, JS_CFUNC_constructor, 0);
/* set proto.constructor and ctor.prototype */
JS_SetConstructor(ctx, attributes_class, attributes_proto);
JS_SetClassProto(ctx, js_attributes_class_id, attributes_proto);
JS_SetPropertyStr(ctx, global_obj, "attributes", attributes_proto);
return 0;
}
JSValue
getAttributes(JSContext *ctx, void *node)
{
JSValue attributes_obj = JS_NewObject(ctx);
JS_SetPropertyFunctionList(ctx, attributes_obj, js_attributes_proto_funcs, countof(js_attributes_proto_funcs));
// attributes_class = JS_NewCFunction2(ctx, js_attributes_ctor, "attributes", 0, JS_CFUNC_constructor, 0);
// JS_SetConstructor(ctx, attributes_class, attributes_obj);
JS_SetClassProto(ctx, js_attributes_class_id, attributes_obj);
JS_SetOpaque(attributes_obj, node);
js_attributes_set_items(ctx, attributes_obj, node);
return attributes_obj;
}

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@ -0,0 +1,8 @@
#ifndef EL__ECMASCRIPT_QUICKJS_ATTRIBUTES_H
#define EL__ECMASCRIPT_QUICKJS_ATTRIBUTES_H
#include <quickjs/quickjs.h>
JSValue getAttributes(JSContext *ctx, void *node);
#endif

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@ -1 +1 @@
srcs += files('attr.c', 'console.c', 'history.c', 'localstorage.c', 'location.c', 'navigator.c', 'screen.c', 'unibar.c', 'window.c')
srcs += files('attr.c', 'attributes.c', 'console.c', 'history.c', 'localstorage.c', 'location.c', 'navigator.c', 'screen.c', 'unibar.c', 'window.c')