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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/SessionStoreFormData.h"
#include "mozilla/Assertions.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/BrowserSessionStoreBinding.h"
#include "mozilla/dom/BrowsingContext.h"
#include "mozilla/dom/sessionstore/SessionStoreTypes.h"
#include "nsContentUtils.h"
#include "js/JSON.h"
using namespace mozilla::dom;
NS_IMPL_CYCLE_COLLECTING_ADDREF(SessionStoreFormData)
NS_IMPL_CYCLE_COLLECTING_RELEASE(SessionStoreFormData)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WEAK_PTR(SessionStoreFormData, mChildren)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SessionStoreFormData)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
nsISupports* SessionStoreFormData::GetParentObject() const {
return xpc::NativeGlobal(xpc::PrivilegedJunkScope());
}
JSObject* SessionStoreFormData::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return SessionStoreFormData_Binding::Wrap(aCx, this, aGivenProto);
}
void SessionStoreFormData::GetUrl(nsACString& aUrl) const {
if (mUrl.IsEmpty()) {
aUrl.SetIsVoid(true);
} else {
aUrl = mUrl;
}
}
void SessionStoreFormData::GetId(
JSContext* aCx,
Nullable<Record<nsString, OwningStringOrBooleanOrObject>>& aId) {
if (mId.IsEmpty() ||
NS_FAILED(SessionStoreUtils::ConstructFormDataValues(
aCx, mId, aId.SetValue().Entries(), mParseSessionData))) {
aId.SetNull();
}
// SessionStoreFormData.id is now stored in a slot, so we can free our
// internal state.
mId.Clear();
}
void SessionStoreFormData::GetXpath(
JSContext* aCx,
Nullable<Record<nsString, OwningStringOrBooleanOrObject>>& aXpath) {
if (mXpath.IsEmpty() ||
NS_FAILED(SessionStoreUtils::ConstructFormDataValues(
aCx, mXpath, aXpath.SetValue().Entries(), mParseSessionData))) {
aXpath.SetNull();
}
// SessionStoreFormData.xpath is now stored in a slot, so we can free our
// internal state.
mXpath.Clear();
}
void SessionStoreFormData::GetInnerHTML(nsAString& aInnerHTML) {
if (mInnerHTML.IsEmpty()) {
SetDOMStringToNull(aInnerHTML);
} else {
aInnerHTML = mInnerHTML;
}
// SessionStoreFormData.innerHTML is now stored in a slot, so we can free our
// internal state.
mInnerHTML.SetIsVoid(true);
}
SessionStoreFormData::ChildrenArray& SessionStoreFormData::Children() {
return mChildren;
}
void SessionStoreFormData::GetChildren(
Nullable<ChildrenArray>& aChildren) const {
if (!mChildren.IsEmpty()) {
aChildren.SetValue() = mChildren.Clone();
} else {
aChildren.SetNull();
}
}
void SessionStoreFormData::ToJSON(JSContext* aCx,
JS::MutableHandle<JSObject*> aRetval) {
JS::Rooted<JSObject*> self(aCx);
{
JS::Rooted<JS::Value> value(aCx);
if (!GetOrCreateDOMReflector(aCx, this, &value)) {
return;
}
self.set(value.toObjectOrNull());
}
JS::Rooted<JSObject*> result(aCx, JS_NewPlainObject(aCx));
if (!IsEmpty()) {
for (const auto& name :
{u"url"_ns, u"id"_ns, u"xpath"_ns, u"innerHTML"_ns}) {
if (!SessionStoreUtils::CopyProperty(aCx, result, self, name)) {
return;
}
}
SessionStoreUtils::CopyChildren(aCx, result, mChildren);
}
aRetval.set(result);
}
void SessionStoreFormData::Update(const CollectedType& aFormData) {
SessionStoreFormData_Binding::ClearCachedUrlValue(this);
SessionStoreFormData_Binding::ClearCachedIdValue(this);
SessionStoreFormData_Binding::ClearCachedXpathValue(this);
SessionStoreFormData_Binding::ClearCachedInnerHTMLValue(this);
if (!aFormData.hasData()) {
mParseSessionData = false;
mHasData = false;
mUrl = ""_ns;
mId.Clear();
mXpath.Clear();
mInnerHTML = u""_ns;
return;
}
mHasData = true;
mUrl = aFormData.uri();
// We want to avoid saving data for about:sessionrestore as a string.
// Since it's stored in the form as stringified JSON, stringifying
// further causes an explosion of escape characters. cf. bug 467409
mParseSessionData =
mUrl == "about:sessionrestore"_ns || mUrl == "about:welcomeback"_ns;
mInnerHTML = aFormData.innerHTML();
mId.Assign(aFormData.id());
mXpath.Assign(aFormData.xpath());
}
void SessionStoreFormData::ClearCachedChildren() {
SessionStoreFormData_Binding::ClearCachedChildrenValue(this);
}
/* static */ bool SessionStoreFormData::HasData(
const CollectedType& aFormData) {
return aFormData.hasData();
}
bool SessionStoreFormData::IsEmpty() const {
return !mHasData && mChildren.IsEmpty();
}
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