forked from mirrors/gecko-dev
123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/SessionStoreScrollData.h"
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#include <utility>
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#include "js/PropertyAndElement.h"
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#include "js/TypeDecls.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/BrowserSessionStoreBinding.h"
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#include "mozilla/dom/BrowsingContext.h"
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#include "nsPresContext.h"
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#include "mozilla/dom/WebIDLGlobalNameHash.h"
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#include "js/PropertyDescriptor.h"
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#include "mozilla/dom/ToJSValue.h"
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#include "mozilla/dom/GeneratedAtomList.h"
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#include "js/StructuredClone.h"
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#include "mozilla/dom/DOMJSClass.h"
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#include "mozilla/dom/StructuredCloneHolder.h"
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#include "nsContentUtils.h"
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#include "js/Array.h"
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#include "js/JSON.h"
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTING_ADDREF(SessionStoreScrollData)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(SessionStoreScrollData)
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WEAK_PTR(SessionStoreScrollData,
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mChildren)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SessionStoreScrollData)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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nsISupports* SessionStoreScrollData::GetParentObject() const {
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return xpc::NativeGlobal(xpc::PrivilegedJunkScope());
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;
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}
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JSObject* SessionStoreScrollData::WrapObject(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return SessionStoreScrollData_Binding::Wrap(aCx, this, aGivenProto);
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}
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void SessionStoreScrollData::GetScroll(nsACString& aScroll) const {
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int scrollX = nsPresContext::AppUnitsToIntCSSPixels(mScroll.x);
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int scrollY = nsPresContext::AppUnitsToIntCSSPixels(mScroll.y);
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if ((scrollX != 0) || (scrollY != 0)) {
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aScroll = nsPrintfCString("%d,%d", scrollX, scrollY);
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} else {
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aScroll.SetIsVoid(true);
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}
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}
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SessionStoreScrollData::ChildrenArray& SessionStoreScrollData::Children() {
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return mChildren;
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}
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void SessionStoreScrollData::GetChildren(
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Nullable<ChildrenArray>& aChildren) const {
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if (!mChildren.IsEmpty()) {
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aChildren.SetValue() = mChildren.Clone();
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} else {
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aChildren.SetNull();
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}
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}
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void SessionStoreScrollData::ToJSON(JSContext* aCx,
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JS::MutableHandle<JSObject*> aRetval) {
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JS::Rooted<JSObject*> self(aCx);
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{
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JS::Rooted<JS::Value> value(aCx);
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if (!GetOrCreateDOMReflector(aCx, this, &value)) {
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return;
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}
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self.set(value.toObjectOrNull());
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}
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JS::Rooted<JSObject*> result(aCx, JS_NewPlainObject(aCx));
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if (!IsEmpty()) {
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if (HasData(mScroll)) {
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if (!SessionStoreUtils::CopyProperty(aCx, result, self, u"scroll"_ns)) {
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return;
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}
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}
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SessionStoreUtils::CopyChildren(aCx, result, mChildren);
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}
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aRetval.set(result);
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}
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void SessionStoreScrollData::Update(const CollectedType& aUpdate) {
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SessionStoreScrollData_Binding::ClearCachedScrollValue(this);
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mScroll = aUpdate;
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}
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void SessionStoreScrollData::ClearCachedChildren() {
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SessionStoreScrollData_Binding::ClearCachedChildrenValue(this);
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}
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/* static */
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bool SessionStoreScrollData::HasData(const CollectedType& aPoint) {
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int scrollX = nsPresContext::AppUnitsToIntCSSPixels(aPoint.x);
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int scrollY = nsPresContext::AppUnitsToIntCSSPixels(aPoint.y);
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return scrollX != 0 || scrollY != 0;
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}
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bool SessionStoreScrollData::IsEmpty() const {
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return !HasData(mScroll) && mChildren.IsEmpty();
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}
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