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[spidermonkey] dispatchEvent

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event_handler is called twice, but better than none.
This commit is contained in:
Witold Filipczyk 2024-05-24 18:23:25 +02:00
parent 44b743540e
commit fadf4f48a9
6 changed files with 193 additions and 28 deletions
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3
src/ecmascript/spidermonkey.cpp
View File

@ -207,9 +207,10 @@ spidermonkey_get_interpreter(struct ecmascript_interpreter *interpreter)
goto release_and_fail;
}
if (!initDocument(document_obj, document->dom)) {
if (!initDocument(ctx, interpreter, document_obj, document->dom)) {
goto release_and_fail;
}
interpreter->document_obj = document_obj;
/*

188
src/ecmascript/spidermonkey/document.cpp
View File

@ -38,6 +38,8 @@
#include "ecmascript/spidermonkey/location.h"
#include "ecmascript/spidermonkey/document.h"
#include "ecmascript/spidermonkey/element.h"
#include "ecmascript/spidermonkey/event.h"
#include "ecmascript/spidermonkey/heartbeat.h"
#include "ecmascript/spidermonkey/nodelist.h"
#include "ecmascript/spidermonkey/util.h"
#include "ecmascript/spidermonkey/window.h"
@ -63,20 +65,23 @@
#include <iostream>
struct listener {
LIST_HEAD_EL(struct listener);
struct el_listener {
LIST_HEAD_EL(struct el_listener);
char *typ;
JS::RootedValue fun;
};
struct document_private {
LIST_OF(struct listener) listeners;
LIST_OF(struct el_listener) listeners;
struct ecmascript_interpreter *interpreter;
dom_document *doc;
JS::RootedObject thisval;
dom_event_listener *listener;
int ref_count;
};
static JSObject *getDoctype(JSContext *ctx, void *node);
static void document_event_handler(dom_event *event, void *pw);
static void document_finalize(JS::GCContext *op, JSObject *obj)
{
@ -87,7 +92,11 @@ static void document_finalize(JS::GCContext *op, JSObject *obj)
struct document_private *doc_private = JS::GetMaybePtrFromReservedSlot<struct document_private>(obj, 1);
if (doc_private) {
struct listener *l;
struct el_listener *l;
if (doc_private->listener) {
dom_event_listener_unref(doc_private->listener);
}
foreach(l, doc_private->listeners) {
mem_free_set(&l->typ, NULL);
@ -1154,6 +1163,7 @@ static bool document_createComment(JSContext *ctx, unsigned int argc, JS::Value
static bool document_createDocumentFragment(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool document_createElement(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool document_createTextNode(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool document_dispatchEvent(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool document_write(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool document_writeln(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool document_replace(JSContext *ctx, unsigned int argc, JS::Value *rval);
@ -1171,6 +1181,7 @@ const spidermonkeyFunctionSpec document_funcs[] = {
{ "createDocumentFragment", document_createDocumentFragment, 0 },
{ "createElement", document_createElement, 1 },
{ "createTextNode", document_createTextNode, 1 },
{ "dispatchEvent", document_dispatchEvent, 1 },
{ "write", document_write, 1 },
{ "writeln", document_writeln, 1 },
{ "replace", document_replace, 2 },
@ -1375,28 +1386,54 @@ document_addEventListener(JSContext *ctx, unsigned int argc, JS::Value *rval)
return true;
}
char *method = jsval_to_string(ctx, args[0]);
if (!method) {
args.rval().setUndefined();
return true;
}
JS::RootedValue fun(ctx, args[1]);
struct listener *l;
struct el_listener *n = (struct el_listener *)mem_calloc(1, sizeof(*n));
foreach(l, doc_private->listeners) {
if (strcmp(l->typ, method)) {
continue;
}
if (l->fun == fun) {
if (!n) {
args.rval().setUndefined();
return false;
}
n->fun = fun;
n->typ = method;
add_to_list_end(doc_private->listeners, n);
dom_exception exc;
if (doc_private->listener) {
dom_event_listener_ref(doc_private->listener);
} else {
exc = dom_event_listener_create(document_event_handler, doc_private, &doc_private->listener);
if (exc != DOM_NO_ERR || !doc_private->listener) {
args.rval().setUndefined();
mem_free(method);
return true;
}
}
struct listener *n = (struct listener *)mem_calloc(1, sizeof(*n));
dom_string *typ = NULL;
exc = dom_string_create(method, strlen(method), &typ);
if (n) {
n->typ = method;
n->fun = fun;
add_to_list_end(doc_private->listeners, n);
if (exc != DOM_NO_ERR || !typ) {
goto ex;
}
exc = dom_event_target_add_event_listener(doc, typ, doc_private->listener, false);
if (exc == DOM_NO_ERR) {
dom_event_listener_ref(doc_private->listener);
}
ex:
if (typ) {
dom_string_unref(typ);
}
dom_event_listener_unref(doc_private->listener);
args.rval().setUndefined();
return true;
}
@ -1444,13 +1481,23 @@ document_removeEventListener(JSContext *ctx, unsigned int argc, JS::Value *rval)
}
JS::RootedValue fun(ctx, args[1]);
struct listener *l;
struct el_listener *l;
foreach(l, doc_private->listeners) {
if (strcmp(l->typ, method)) {
continue;
}
if (l->fun == fun) {
dom_string *typ = NULL;
dom_exception exc = dom_string_create(method, strlen(method), &typ);
if (exc != DOM_NO_ERR || !typ) {
continue;
}
dom_event_target_remove_event_listener(doc, typ, doc_private->listener, false);
dom_string_unref(typ);
del_from_list(l);
mem_free_set(&l->typ, NULL);
mem_free(l);
@ -1464,7 +1511,6 @@ document_removeEventListener(JSContext *ctx, unsigned int argc, JS::Value *rval)
return true;
}
static bool
document_createComment(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
@ -1623,6 +1669,100 @@ document_createElement(JSContext *ctx, unsigned int argc, JS::Value *vp)
return true;
}
static bool
document_dispatchEvent(JSContext *ctx, unsigned int argc, JS::Value *rval)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
JS::Realm *comp = js::GetContextRealm(ctx);
if (!comp) {
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return false;
}
JS::CallArgs args = CallArgsFromVp(argc, rval);
JS::RootedObject hobj(ctx, &args.thisv().toObject());
if (!JS_InstanceOf(ctx, hobj, &document_class, NULL)) {
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return false;
}
dom_document *doc = JS::GetMaybePtrFromReservedSlot<dom_document>(hobj, 0);
struct document_private *doc_private = JS::GetMaybePtrFromReservedSlot<struct document_private>(hobj, 1);
if (!doc || !doc_private) {
args.rval().setBoolean(false);
return true;
}
if (argc < 1) {
args.rval().setBoolean(false);
return true;
}
JS::RootedObject eve(ctx, &args[0].toObject());
dom_event *event = (dom_event *)JS::GetMaybePtrFromReservedSlot<dom_event>(eve, 0);
bool result = false;
dom_exception exc = dom_event_target_dispatch_event(doc, event, &result);
args.rval().setBoolean(result);
return true;
}
static void
document_event_handler(dom_event *event, void *pw)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
struct document_private *doc_private = (struct document_private *)pw;
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)doc_private->interpreter;
JSContext *ctx = (JSContext *)interpreter->backend_data;
dom_document *doc = (dom_document *)doc_private->doc;
JSAutoRealm ar(ctx, (JSObject *)interpreter->ac->get());
JS::RootedValue r_val(ctx);
interpreter->heartbeat = add_heartbeat(interpreter);
if (!event) {
return;
}
dom_string *typ = NULL;
dom_exception exc = dom_event_get_type(event, &typ);
if (exc != DOM_NO_ERR || !typ) {
return;
}
JSObject *obj_ev = getEvent(ctx, event);
interpreter->heartbeat = add_heartbeat(interpreter);
struct el_listener *l;
foreach(l, doc_private->listeners) {
if (strcmp(l->typ, dom_string_data(typ))) {
continue;
}
JS::RootedValueVector argv(ctx);
if (!argv.resize(1)) {
return;
}
argv[0].setObject(*obj_ev);
JS::RootedValue r_val(ctx);
JS_CallFunctionValue(ctx, doc_private->thisval, l->fun, argv, &r_val);
}
done_heartbeat(interpreter->heartbeat);
check_for_rerender(interpreter, dom_string_data(typ));
dom_string_unref(typ);
}
static bool
document_createTextNode(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
@ -2188,6 +2328,7 @@ getDocument(JSContext *ctx, void *doc)
}
init_list(doc_private->listeners);
doc_private->ref_count = 1;
doc_private->doc = doc;
JSObject *el = JS_NewObject(ctx, &document_class);
@ -2196,6 +2337,10 @@ getDocument(JSContext *ctx, void *doc)
}
JS::RootedObject r_el(ctx, el);
JS::Realm *comp = js::GetContextRealm(ctx);
struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS::GetRealmPrivate(comp);
doc_private->interpreter = interpreter;
doc_private->thisval = r_el;
JS_DefineProperties(ctx, r_el, (JSPropertySpec *) document_props);
spidermonkey_DefineFunctions(ctx, el, document_funcs);
@ -2207,7 +2352,7 @@ getDocument(JSContext *ctx, void *doc)
}
bool
initDocument(JSObject *document_obj, void *doc)
initDocument(JSContext *ctx, struct ecmascript_interpreter *interpreter, JSObject *document_obj, void *doc)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
@ -2217,6 +2362,11 @@ initDocument(JSObject *document_obj, void *doc)
if (!doc_private) {
return false;
}
JS::RootedObject r_el(ctx, document_obj);
doc_private->interpreter = interpreter;
doc_private->thisval = r_el;
doc_private->doc = doc;
init_list(doc_private->listeners);
doc_private->ref_count = 1;

4
src/ecmascript/spidermonkey/document.h
View File

@ -4,11 +4,13 @@
#include "ecmascript/spidermonkey/util.h"
struct ecmascript_interpreter;
extern JSClass document_class;
extern const spidermonkeyFunctionSpec document_funcs[];
extern JSPropertySpec document_props[];
JSObject *getDocument(JSContext *ctx, void *doc);
bool initDocument(JSObject *document_obj, void *doc);
bool initDocument(JSContext *ctx, struct ecmascript_interpreter *interpreter, JSObject *document_obj, void *doc);
#endif

10
src/ecmascript/spidermonkey/event.cpp
View File

@ -388,7 +388,7 @@ event_get_property_type(JSContext *ctx, unsigned int argc, JS::Value *vp)
}
JSObject *
get_Event(JSContext *ctx)
getEvent(JSContext *ctx, void *eve)
{
JSObject *k = JS_NewObject(ctx, &event_class);
@ -398,12 +398,8 @@ get_Event(JSContext *ctx)
JS::RootedObject r_event(ctx, k);
JS_DefineProperties(ctx, r_event, (JSPropertySpec *)event_props);
dom_event *event = NULL;
dom_exception exc = dom_event_create(&event);
if (exc != DOM_NO_ERR) {
return NULL;
}
dom_event *event = (dom_event *)eve;
dom_event_ref(event);
JS::SetReservedSlot(k, 0, JS::PrivateValue(event));
return k;

1
src/ecmascript/spidermonkey/event.h
View File

@ -7,5 +7,6 @@ extern JSClass event_class;
extern JSPropertySpec event_props[];
extern const spidermonkeyFunctionSpec event_funcs[];
bool event_constructor(JSContext* ctx, unsigned argc, JS::Value* vp);
JSObject *getEvent(JSContext *ctx, void *eve);
#endif

15
test/ecmascript/assert/eventListener.html Normal file
View File

@ -0,0 +1,15 @@
<script>
function ff(ev)
{
console.assert(ev.type === 'message', ev.type);
console.exit(0);
}
var e = new Event('message', { cancelable: true });
console.error('eventListener.html');
document.addEventListener("message", ff);
document.dispatchEvent(e);
</script>