[quickjs] navigator

src/ecmascript/quickjs.c

@@ -25,6 +25,7 @@
 #include "document/view.h"
 #include "ecmascript/ecmascript.h"
 #include "ecmascript/quickjs.h"
+#include "ecmascript/quickjs/navigator.h"
 #include "ecmascript/quickjs/screen.h"
 #include "ecmascript/quickjs/unibar.h"
 #include "ecmascript/quickjs/window.h"
@@ -163,6 +164,7 @@ quickjs_get_interpreter(struct ecmascript_interpreter *interpreter)
 	JS_SetPropertyStr(ctx, global_obj, "window", window_obj);
 	js_screen_init(ctx, global_obj);
 	js_unibar_init(ctx, global_obj);
+	js_navigator_init(ctx, global_obj);
 
 	JS_FreeValue(ctx, global_obj);
 

src/ecmascript/quickjs/meson.build

@@ -1 +1 @@
-srcs += files('screen.c', 'unibar.c', 'window.c')
+srcs += files('navigator.c', 'screen.c', 'unibar.c', 'window.c')

src/ecmascript/quickjs/navigator.c

@@ -0,0 +1,193 @@
+/* The Quickjs navigator 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/navigator.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"
+
+#define countof(x) (sizeof(x) / sizeof((x)[0]))
+
+static JSClassID js_navigator_class_id;
+
+/* @navigator_class.getProperty */
+
+static JSValue
+js_navigator_get_property_appCodeName(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	return JS_NewString(ctx, "Mozilla"); /* More like a constant nowadays. */
+}
+
+static JSValue
+js_navigator_get_property_appName(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	return JS_NewString(ctx, "ELinks (roughly compatible with Netscape Navigator, Mozilla and Microsoft Internet Explorer)");
+}
+
+static JSValue
+js_navigator_get_property_appVersion(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	return JS_NewString(ctx, VERSION);
+}
+
+static JSValue
+js_navigator_get_property_language(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+#ifdef CONFIG_NLS
+	if (get_opt_bool("protocol.http.accept_ui_language", NULL)) {
+		return JS_NewString(ctx, language_to_iso639(current_language));
+	}
+#endif
+	return JS_UNDEFINED;
+}
+
+static JSValue
+js_navigator_get_property_platform(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	return JS_NewString(ctx, system_name);
+}
+
+static JSValue
+js_navigator_get_property_userAgent(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	char *optstr;
+
+	optstr = get_opt_str("protocol.http.user_agent", NULL);
+
+	if (*optstr && strcmp(optstr, " ")) {
+		char *ustr, ts[64] = "";
+		static unsigned char custr[256];
+		/* TODO: Somehow get the terminal in which the
+		 * document is actually being displayed.  */
+		struct terminal *term = get_default_terminal();
+
+		if (term) {
+			unsigned int tslen = 0;
+
+			ulongcat(ts, &tslen, term->width, 3, 0);
+			ts[tslen++] = 'x';
+			ulongcat(ts, &tslen, term->height, 3, 0);
+		}
+		ustr = subst_user_agent(optstr, VERSION_STRING, system_name, ts);
+
+		if (ustr) {
+			safe_strncpy(custr, ustr, 256);
+			mem_free(ustr);
+
+			return JS_NewString(ctx, custr);
+		}
+	}
+	return JS_NewString(ctx, system_name);
+}
+
+static const JSCFunctionListEntry js_navigator_proto_funcs[] = {
+	JS_CGETSET_MAGIC_DEF("appCodeName", js_navigator_get_property_appCodeName, nullptr, 0),
+	JS_CGETSET_MAGIC_DEF("appName", js_navigator_get_property_appName, nullptr, 0),
+	JS_CGETSET_MAGIC_DEF("appVersion", js_navigator_get_property_appVersion, nullptr, 0),
+	JS_CGETSET_MAGIC_DEF("language", js_navigator_get_property_language, nullptr, 0),
+	JS_CGETSET_MAGIC_DEF("platform", js_navigator_get_property_platform, nullptr, 0),
+	JS_CGETSET_MAGIC_DEF("userAgent", js_navigator_get_property_userAgent, nullptr, 0),
+};
+
+static JSClassDef js_navigator_class = {
+    "navigator",
+};
+
+static JSValue
+js_navigator_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_navigator_class_id);
+	JS_FreeValue(ctx, proto);
+
+	if (JS_IsException(obj)) {
+		goto fail;
+	}
+	return obj;
+
+fail:
+	JS_FreeValue(ctx, obj);
+	return JS_EXCEPTION;
+}
+
+int
+js_navigator_init(JSContext *ctx, JSValue global_obj)
+{
+	JSValue navigator_proto, navigator_class;
+
+	/* create the navigator class */
+	JS_NewClassID(&js_navigator_class_id);
+	JS_NewClass(JS_GetRuntime(ctx), js_navigator_class_id, &js_navigator_class);
+
+	navigator_proto = JS_NewObject(ctx);
+	JS_SetPropertyFunctionList(ctx, navigator_proto, js_navigator_proto_funcs, countof(js_navigator_proto_funcs));
+
+	navigator_class = JS_NewCFunction2(ctx, js_navigator_ctor, "navigator", 0, JS_CFUNC_constructor, 0);
+	/* set proto.constructor and ctor.prototype */
+	JS_SetConstructor(ctx, navigator_class, navigator_proto);
+	JS_SetClassProto(ctx, js_navigator_class_id, navigator_proto);
+
+	JS_SetPropertyStr(ctx, global_obj, "navigator", navigator_proto);
+	return 0;
+}

src/ecmascript/quickjs/navigator.h

@@ -0,0 +1,6 @@
+#ifndef EL__ECMASCRIPT_QUICKJS_NAVIGATOR_H
+#define EL__ECMASCRIPT_QUICKJS_NAVIGATOR_H
+
+#include <quickjs/quickjs.h>
+int js_navigator_init(JSContext *ctx, JSValue global_obj);
+#endif

test/ecmascript/navigator.html

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+<body>
+
+<script>
+var text = "appCodeName=" + navigator.appCodeName + "\n";
+text += "appName=" + navigator.appName + "\n";
+text += "appVersion=" + navigator.appVersion + "\n";
+text += "platform=" + navigator.platform + "\n";
+text += "userAgent=" + navigator.userAgent + "\n";
+text += "language=" + navigator.language;
+window.alert(text);
+</script>
+
+</body>
+</html>