[quickjs] htmlCollection

src/ecmascript/quickjs/attributes.c

@@ -155,7 +155,7 @@ js_attributes_item(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst
 	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
 #endif
 	if (argc != 1) {
-		return JS_EXCEPTION;
+		return JS_UNDEFINED;
 	}
 
 	int index;
@@ -278,8 +278,6 @@ js_attributes_init(JSContext *ctx, JSValue global_obj)
 	return 0;
 }
 
-
-
 JSValue
 getAttributes(JSContext *ctx, void *node)
 {

src/ecmascript/quickjs/collection.c

@@ -0,0 +1,291 @@
+/* The QuickJS html collection 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/collection.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_htmlCollection_class_id;
+
+// Placeholder
+JSValue getElement(JSContext *ctx, void *node)
+{
+	return JS_NULL;
+}
+
+static JSValue
+js_htmlCollection_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);
+	xmlpp::Node::NodeSet *ns = JS_GetOpaque(this_val, js_htmlCollection_class_id);
+
+	if (!ns) {
+		return JS_NewInt32(ctx, 0);
+	}
+
+	return JS_NewInt32(ctx, ns->size());
+}
+
+static JSValue
+js_htmlCollection_item2(JSContext *ctx, JSValueConst this_val, int idx)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	xmlpp::Node::NodeSet *ns = JS_GetOpaque(this_val, js_htmlCollection_class_id);
+
+	if (!ns) {
+		return JS_UNDEFINED;
+	}
+
+	xmlpp::Element *element;
+
+	try {
+		element = ns->at(idx);
+	} catch (std::out_of_range e) { return JS_UNDEFINED;}
+
+	if (!element) {
+		return JS_UNDEFINED;
+	}
+
+	return getElement(ctx, element);
+}
+
+static JSValue
+js_htmlCollection_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_UNDEFINED;
+	}
+
+	int index;
+	JS_ToInt32(ctx, &index, argv[0]);
+
+	return js_htmlCollection_item2(ctx, this_val, index);
+}
+
+static JSValue
+js_htmlCollection_namedItem2(JSContext *ctx, JSValueConst this_val, const char *str)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	xmlpp::Node::NodeSet *ns = JS_GetOpaque(this_val, js_htmlCollection_class_id);
+
+	if (!ns) {
+		return JS_UNDEFINED;
+	}
+
+	xmlpp::ustring name = str;
+
+	auto it = ns->begin();
+	auto end = ns->end();
+
+	for (; it != end; ++it) {
+		const auto element = dynamic_cast<const xmlpp::Element*>(*it);
+
+		if (!element) {
+			continue;
+		}
+
+		if (name == element->get_attribute_value("id")
+		|| name == element->get_attribute_value("name")) {
+			return getElement(ctx, element);
+		}
+	}
+
+	return JS_UNDEFINED;
+}
+
+static JSValue
+js_htmlCollection_namedItem(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_htmlCollection_namedItem2(ctx, this_val, str);
+	JS_FreeCString(ctx, str);
+
+	return ret;
+}
+
+static void
+js_htmlCollection_set_items(JSContext *ctx, JSValue this_val, void *node)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	int counter = 0;
+
+	xmlpp::Node::NodeSet *ns = JS_GetOpaque(this_val, js_htmlCollection_class_id);
+
+	if (!ns) {
+		return;
+	}
+
+	xmlpp::Element *element;
+
+	while (1) {
+		try {
+			element = ns->at(counter);
+		} catch (std::out_of_range e) { return;}
+
+		if (!element) {
+			return;
+		}
+
+		JSValue obj = getElement(ctx, element);
+		JS_SetPropertyUint32(ctx, this_val, counter, obj);
+
+		xmlpp::ustring name = element->get_attribute_value("id");
+		if (name == "") {
+			name = element->get_attribute_value("name");
+		}
+		if (name != "" && name != "item" && name != "namedItem") {
+			JS_DefinePropertyValueStr(ctx, this_val, name.c_str(), obj, 0);
+		}
+		counter++;
+	}
+}
+
+static const JSCFunctionListEntry js_htmlCollection_proto_funcs[] = {
+	JS_CGETSET_DEF("length", js_htmlCollection_get_property_length, nullptr),
+	JS_CFUNC_DEF("item", 1, js_htmlCollection_item),
+	JS_CFUNC_DEF("namedItem", 1, js_htmlCollection_namedItem),
+};
+
+static JSClassDef js_htmlCollection_class = {
+	"htmlCollection",
+};
+
+static JSValue
+js_htmlCollection_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_htmlCollection_class_id);
+	JS_FreeValue(ctx, proto);
+
+	if (JS_IsException(obj)) {
+		goto fail;
+	}
+	return obj;
+
+fail:
+	JS_FreeValue(ctx, obj);
+	return JS_EXCEPTION;
+}
+
+int
+js_htmlCollection_init(JSContext *ctx, JSValue global_obj)
+{
+	JSValue htmlCollection_proto, htmlCollection_class;
+
+	/* create the htmlCollection class */
+	JS_NewClassID(&js_htmlCollection_class_id);
+	JS_NewClass(JS_GetRuntime(ctx), js_htmlCollection_class_id, &js_htmlCollection_class);
+
+	htmlCollection_proto = JS_NewObject(ctx);
+	JS_SetPropertyFunctionList(ctx, htmlCollection_proto, js_htmlCollection_proto_funcs, countof(js_htmlCollection_proto_funcs));
+
+	htmlCollection_class = JS_NewCFunction2(ctx, js_htmlCollection_ctor, "htmlCollection", 0, JS_CFUNC_constructor, 0);
+	/* set proto.constructor and ctor.prototype */
+	JS_SetConstructor(ctx, htmlCollection_class, htmlCollection_proto);
+	JS_SetClassProto(ctx, js_htmlCollection_class_id, htmlCollection_proto);
+
+	JS_SetPropertyStr(ctx, global_obj, "htmlCollection", htmlCollection_proto);
+	return 0;
+}
+
+
+JSValue
+getCollection(JSContext *ctx, void *node)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	JSValue htmlCollection_obj = JS_NewObject(ctx);
+	JS_SetPropertyFunctionList(ctx, htmlCollection_obj, js_htmlCollection_proto_funcs, countof(js_htmlCollection_proto_funcs));
+//	htmlCollection_class = JS_NewCFunction2(ctx, js_htmlCollection_ctor, "htmlCollection", 0, JS_CFUNC_constructor, 0);
+//	JS_SetConstructor(ctx, htmlCollection_class, htmlCollection_obj);
+	JS_SetClassProto(ctx, js_htmlCollection_class_id, htmlCollection_obj);
+
+	JS_SetOpaque(htmlCollection_obj, node);
+	js_htmlCollection_set_items(ctx, htmlCollection_obj, node);
+
+	return htmlCollection_obj;
+}

src/ecmascript/quickjs/collection.h

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

src/ecmascript/quickjs/meson.build

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