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[querySelector] Added to element

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This commit is contained in:
Witold Filipczyk 2021-10-04 19:47:56 +02:00
parent 160deb55d9
commit 408f644b4c
3 changed files with 181 additions and 0 deletions
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120
src/ecmascript/spidermonkey/element.c
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@ -23,6 +23,7 @@
#include "document/forms.h"
#include "document/view.h"
#include "ecmascript/ecmascript.h"
#include "ecmascript/spidermonkey/css2xpath.h"
#include "ecmascript/spidermonkey/element.h"
#include "ecmascript/spidermonkey/window.h"
#include "intl/libintl.h"
@ -2308,6 +2309,8 @@ static bool element_hasChildNodes(JSContext *ctx, unsigned int argc, JS::Value *
static bool element_insertBefore(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_isEqualNode(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_isSameNode(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_querySelector(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_querySelectorAll(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_remove(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_removeChild(JSContext *ctx, unsigned int argc, JS::Value *rval);
static bool element_setAttribute(JSContext *ctx, unsigned int argc, JS::Value *rval);
@ -2324,6 +2327,8 @@ const spidermonkeyFunctionSpec element_funcs[] = {
{ "insertBefore", element_insertBefore, 2 },
{ "isEqualNode", element_isEqualNode, 1 },
{ "isSameNode", element_isSameNode, 1 },
{ "querySelector", element_querySelector, 1 },
{ "querySelectorAll", element_querySelectorAll, 1 },
{ "remove", element_remove, 0 },
{ "removeChild", element_removeChild, 1 },
{ "setAttribute", element_setAttribute, 2 },
@ -2887,6 +2892,121 @@ element_isSameNode(JSContext *ctx, unsigned int argc, JS::Value *rval)
return true;
}
static bool
element_querySelector(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
JS::CallArgs args = CallArgsFromVp(argc, vp);
if (argc != 1) {
args.rval().setBoolean(false);
return true;
}
JS::RootedObject hobj(ctx, &args.thisv().toObject());
if (!JS_InstanceOf(ctx, hobj, &element_class, NULL)) {
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return false;
}
xmlpp::Element *el = JS_GetPrivate(hobj);
if (!el) {
args.rval().setBoolean(false);
return true;
}
struct string cssstr;
init_string(&cssstr);
jshandle_value_to_char_string(&cssstr, ctx, args[0]);
xmlpp::ustring css = cssstr.source;
xmlpp::ustring xpath = css2xpath(css);
done_string(&cssstr);
auto elements = el->find(xpath);
if (elements.size() == 0) {
args.rval().setNull();
return true;
}
auto node = elements[0];
JSObject *elem = getElement(ctx, node);
if (elem) {
args.rval().setObject(*elem);
} else {
args.rval().setNull();
}
return true;
}
static bool
element_querySelectorAll(JSContext *ctx, unsigned int argc, JS::Value *vp)
{
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
#endif
JS::CallArgs args = CallArgsFromVp(argc, vp);
if (argc != 1) {
args.rval().setBoolean(false);
return true;
}
JS::RootedObject hobj(ctx, &args.thisv().toObject());
if (!JS_InstanceOf(ctx, hobj, &element_class, NULL)) {
#ifdef ECMASCRIPT_DEBUG
fprintf(stderr, "%s:%s %d\n", __FILE__, __FUNCTION__, __LINE__);
#endif
return false;
}
xmlpp::Element *el = JS_GetPrivate(hobj);
if (!el) {
args.rval().setBoolean(false);
return true;
}
struct string cssstr;
init_string(&cssstr);
jshandle_value_to_char_string(&cssstr, ctx, args[0]);
xmlpp::ustring css = cssstr.source;
xmlpp::ustring xpath = css2xpath(css);
done_string(&cssstr);
xmlpp::Node::NodeSet *elements = new xmlpp::Node::NodeSet;
*elements = el->find(xpath);
if (elements->size() == 0) {
args.rval().setNull();
return true;
}
JSObject *elem = getCollection(ctx, elements);
if (elem) {
args.rval().setObject(*elem);
} else {
args.rval().setNull();
}
return true;
}
static bool
element_remove(JSContext *ctx, unsigned int argc, JS::Value *rval)
{

29
test/ecmascript/el_querySelector.html Normal file
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@ -0,0 +1,29 @@
<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {
border: 1px solid black;
}
</style>
</head>
<body>
<div id="myDIV">
<h2 class="example">A heading with class="example" in div</h2>
<p class="example">A paragraph with class="example" in div.</p>
</div>
<p>Click the button to change the text of the first element with class="example" in div.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
var x = document.getElementById("myDIV");
x.querySelector(".example").innerHTML = "Hello World!";
}
</script>
</body>
</html>

32
test/ecmascript/el_querySelectorAll.html Normal file
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@ -0,0 +1,32 @@
<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {
border: 1px solid black;
margin: 5px;
}
</style>
</head>
<body>
<div id="myDIV">
<h2 class="example">A heading with class="example" in div</h2>
<p class="example">A paragraph with class="example" in div.</p>
</div>
<p>Click the button to add a background color to the first element in DIV with class="example" (index 0).</p>
<button onclick="myFunction()">Try it</button>
<p><strong>Note:</strong> The querySelectorAll() method is not supported in Internet Explorer 8 and earlier versions.</p>
<script>
function myFunction() {
var x = document.getElementById("myDIV").querySelectorAll(".example");
x[1].innerText = "red";
}
</script>
</body>
</html>