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mirror of https://github.com/rkd77/elinks.git synced 2024-06-20 00:15:31 +00:00

[quickjs] history

This commit is contained in:
Witold Filipczyk 2021-10-21 17:17:26 +02:00
parent e73e66ffea
commit 46953a35bd
5 changed files with 199 additions and 1 deletions

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@ -25,6 +25,7 @@
#include "document/view.h"
#include "ecmascript/ecmascript.h"
#include "ecmascript/quickjs.h"
#include "ecmascript/quickjs/history.h"
#include "ecmascript/quickjs/navigator.h"
#include "ecmascript/quickjs/screen.h"
#include "ecmascript/quickjs/unibar.h"
@ -165,6 +166,7 @@ quickjs_get_interpreter(struct ecmascript_interpreter *interpreter)
js_screen_init(ctx, global_obj);
js_unibar_init(ctx, global_obj);
js_navigator_init(ctx, global_obj);
js_history_init(ctx, global_obj);
JS_FreeValue(ctx, global_obj);

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@ -0,0 +1,177 @@
/* The QuickJS history 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/history.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_history_class_id;
/* @history_funcs{"back"} */
static JSValue
js_history_back(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
assert(interpreter);
struct document_view *doc_view = interpreter->vs->doc_view;
struct session *ses = doc_view->session;
go_back(ses);
/* history_back() must return 0 for onClick to cause displaying previous page
* and return non zero for <a href="javascript:history.back()"> to prevent
* "calculating" new link. Returned value 2 is changed to 0 in function
* spidermonkey_eval_boolback */
return JS_NULL;
}
/* @history_funcs{"forward"} */
static JSValue
js_history_forward(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
assert(interpreter);
struct document_view *doc_view = interpreter->vs->doc_view;
struct session *ses = doc_view->session;
go_unback(ses);
return JS_NULL;
}
/* @history_funcs{"go"} */
static JSValue
js_history_go(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
assert(interpreter);
struct document_view *doc_view = interpreter->vs->doc_view;
struct session *ses = doc_view->session;
struct location *loc;
if (argc != 1) {
return JS_UNDEFINED;
}
int index;
if (JS_ToInt32(ctx, &index, argv[0])) {
return JS_UNDEFINED;
}
for (loc = cur_loc(ses);
loc != (struct location *) &ses->history.history;
loc = index > 0 ? loc->next : loc->prev) {
if (!index) {
go_history(ses, loc);
break;
}
index += index > 0 ? -1 : 1;
}
return JS_NULL;
}
static const JSCFunctionListEntry js_history_funcs[] = {
JS_CFUNC_DEF("back", 0, js_history_back ),
JS_CFUNC_DEF("forward", 0, js_history_forward ),
JS_CFUNC_DEF("go", 1, js_history_go ),
};
static JSClassDef js_history_class = {
"navigator",
};
static JSValue
js_history_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_history_class_id);
JS_FreeValue(ctx, proto);
if (JS_IsException(obj)) {
goto fail;
}
return obj;
fail:
JS_FreeValue(ctx, obj);
return JS_EXCEPTION;
}
int
js_history_init(JSContext *ctx, JSValue global_obj)
{
JSValue history_proto, history_class;
/* create the history class */
JS_NewClassID(&js_history_class_id);
JS_NewClass(JS_GetRuntime(ctx), js_history_class_id, &js_history_class);
history_proto = JS_NewObject(ctx);
JS_SetPropertyFunctionList(ctx, history_proto, js_history_funcs, countof(js_history_funcs));
history_class = JS_NewCFunction2(ctx, js_history_ctor, "history", 0, JS_CFUNC_constructor, 0);
/* set proto.constructor and ctor.prototype */
JS_SetConstructor(ctx, history_class, history_proto);
JS_SetClassProto(ctx, js_history_class_id, history_proto);
JS_SetPropertyStr(ctx, global_obj, "history", history_proto);
return 0;
}

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@ -0,0 +1,8 @@
#ifndef EL__ECMASCRIPT_QUICKJS_HISTORY_H
#define EL__ECMASCRIPT_QUICKJS_HISTORY_H
#include <quickjs/quickjs.h>
int js_history_init(JSContext *ctx, JSValue global_obj);
#endif

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

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@ -0,0 +1,11 @@
<html>
<title>JavaScript History tests</title>
<body>
<script>
history.go(-2);
</script>
</body>
</html>