[quickjs] screen

src/ecmascript/quickjs.c

@@ -25,6 +25,7 @@
 #include "document/view.h"
 #include "ecmascript/ecmascript.h"
 #include "ecmascript/quickjs.h"
+#include "ecmascript/quickjs/screen.h"
 #include "ecmascript/quickjs/window.h"
 #include "intl/libintl.h"
 #include "main/select.h"
@@ -159,6 +160,7 @@ quickjs_get_interpreter(struct ecmascript_interpreter *interpreter)
 	JS_SetPropertyStr(ctx, window_obj, "alert",
 	                  JS_NewCFunction(ctx, js_window_alert, "alert", 1));
 	JS_SetPropertyStr(ctx, global_obj, "window", window_obj);
+	js_screen_init(ctx, global_obj);
 
 	JS_FreeValue(ctx, global_obj);
 

src/ecmascript/quickjs/meson.build

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

src/ecmascript/quickjs/screen.c

@@ -0,0 +1,190 @@
+/* The QuickJS screen 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/screen.h"
+#include "ecmascript/quickjs/window.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_screen_class_id;
+
+static JSValue
+js_screen_get_property_availHeight(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#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;
+	struct document_view *doc_view = vs->doc_view;
+
+	if (!doc_view) {
+		return JS_UNDEFINED;
+	}
+
+	return JS_NewInt32(ctx, doc_view->box.height * 16);
+}
+
+static JSValue
+js_screen_get_property_availWidth(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#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;
+	struct document_view *doc_view = vs->doc_view;
+
+	if (!doc_view) {
+		return JS_UNDEFINED;
+	}
+
+	return JS_NewInt32(ctx, doc_view->box.width * 8);
+}
+
+static JSValue
+js_screen_get_property_height(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#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;
+	struct document_view *doc_view = vs->doc_view;
+
+	if (!doc_view) {
+		return JS_UNDEFINED;
+	}
+
+	struct session *ses = doc_view->session;
+
+	if (!ses) {
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
+#endif
+		return JS_UNDEFINED;
+	}
+
+	return JS_NewInt32(ctx, ses->tab->term->height * 16);
+}
+
+static JSValue
+js_screen_get_property_width(JSContext *ctx, JSValueConst this_val, int magic)
+{
+#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;
+	struct document_view *doc_view = vs->doc_view;
+
+	if (!doc_view) {
+		return JS_UNDEFINED;
+	}
+
+	struct session *ses = doc_view->session;
+
+	if (!ses) {
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
+#endif
+		return JS_UNDEFINED;
+	}
+
+	return JS_NewInt32(ctx, ses->tab->term->width * 8);
+}
+
+static const JSCFunctionListEntry js_screen_proto_funcs[] = {
+    JS_CGETSET_MAGIC_DEF("availHeight", js_screen_get_property_availHeight, nullptr, 0),
+    JS_CGETSET_MAGIC_DEF("availWidth", js_screen_get_property_availWidth, nullptr, 0),
+    JS_CGETSET_MAGIC_DEF("height", js_screen_get_property_height, nullptr, 0),
+    JS_CGETSET_MAGIC_DEF("width", js_screen_get_property_width, nullptr, 0),
+};
+
+static JSClassDef js_screen_class = {
+    "screen",
+};
+
+static JSValue
+js_screen_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_screen_class_id);
+	JS_FreeValue(ctx, proto);
+
+	if (JS_IsException(obj)) {
+		goto fail;
+	}
+	return obj;
+
+fail:
+	JS_FreeValue(ctx, obj);
+	return JS_EXCEPTION;
+}
+
+int
+js_screen_init(JSContext *ctx, JSValue global_obj)
+{
+	JSValue screen_proto, screen_class;
+
+	/* create the screen class */
+	JS_NewClassID(&js_screen_class_id);
+	JS_NewClass(JS_GetRuntime(ctx), js_screen_class_id, &js_screen_class);
+
+	screen_proto = JS_NewObject(ctx);
+	JS_SetPropertyFunctionList(ctx, screen_proto, js_screen_proto_funcs, countof(js_screen_proto_funcs));
+
+	screen_class = JS_NewCFunction2(ctx, js_screen_ctor, "screen", 2, JS_CFUNC_constructor, 0);
+	/* set proto.constructor and ctor.prototype */
+	JS_SetConstructor(ctx, screen_class, screen_proto);
+	JS_SetClassProto(ctx, js_screen_class_id, screen_proto);
+
+	JS_SetPropertyStr(ctx, global_obj, "screen", screen_proto);
+	return 0;
+}

src/ecmascript/quickjs/screen.h

@@ -0,0 +1,9 @@
+
+#ifndef EL__ECMASCRIPT_QUICKJS_SCREEN_H
+#define EL__ECMASCRIPT_QUICKJS_SCREEN_H
+
+#include <quickjs/quickjs.h>
+
+int js_screen_init(JSContext *ctx, JSValue global_obj);
+
+#endif

src/ecmascript/spidermonkey/screen.c

@@ -1,4 +1,4 @@
-/* The SpiderMonkey location and history objects implementation. */
+/* The SpiderMonkey screen object implementation. */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"

test/ecmascript/availHeight_2.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+<body>
+
+<p id="demo"></p>
+
+<script>
+  var x = "Avail Height: " + screen.availHeight + "px";
+  window.alert(x);
+</script>
+
+</body>
+</html>

test/ecmascript/availWidth_2.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<body>
+
+<script>
+  var x = "Avail Width: " + screen.availWidth + "px";
+  window.alert(x);
+</script>
+
+</body>
+</html>

test/ecmascript/height_2.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script>
+  var x = "Height: " + screen.height + "px";
+  window.alert(x);
+</script>
+
+</body>
+</html>

test/ecmascript/width_2.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<body>
+
+<script>
+  var x = "Width: " + screen.width + "px";
+  window.alert(x);
+</script>
+
+</body>
+</html>